同济大学数据库课程考核试卷 A卷 秋季数据库期中考试 英语 参考答案
2020年同济大学实验学校高三英语下学期期中试卷及参考答案
2020年同济大学实验学校高三英语下学期期中试卷及参考答案第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AWhat to Eat—and What to Skip—When It Comes to Takeout FoodIf the burden on your wallet doesn't bother you much, the effect your takeout habit can have on your waistline just might arouse your attention. Here's the best and worst of the lot for your belly.Steamed Vegetable Dumplings: Order This.When she orders Chinese, registered dietitian nutritionist Elisa Zied gets an order of steamed vegetable dumplings. "I often pair them with either chicken and broccoli in brown sauce（I ask for a little saucemade without sugar）or steamed shrimp dumplings," she tells us.Crab Wontons: Not That!When you deconstruct crab wontons, it's easy to see why they're a "Not That!" The inside is filled with crabmeat and cream cheese（which is just a fancy, spreadable fat）.The wonton is made of refined flour, egg and salt and the crispy（脆的）coating is a result of a deep oil bath.Peking Duck: Order This.Most of the fat from the skin flows out of the duck over the course of cooking, making this a healthier choice than most of the stir-fry dishes available. Order a side of steamed vegetables and serve it with a small scoop of brown rice. Done and done!Sweet and Sour Anything: Not That!Anything with “sweet and sour” in its title is a powerful cue that something has been deep-fried and covered in a sickly-sweet pink sauce. If you pair your selection with a side of rice, you're looking at a 1,000-calorie meal.Summer Roll: Order This.Summer rolls are steamed instead of fried—and typically filled with lean proteins and vegetables, making them a winning appetizer in our book. Pair them with an order of edamame（毛豆）and a broth-based soup for a satisfying, filling meal.Spring Roll: Not That!Spring=deep-fried, which is why we say to skip them! They're filled with fat and calories your belly doesn't need.1.What kind of cooking method should be skipped according to the text?A.Steaming.B.Stir-frying.C.Deep-frying.D.Boiling.2.Which of the following suits as a good starter for a meal?A.Chicken and broccoli.B.Steamed vegetable dumplings.C.Peking duck.D.Summer rolls.3.Where can the text be found?A.In a recipe.B.In a guidebook.C.In a science fiction.D.In a health magazine.BThe outbreak of the novel corona virus pneumonia (NCP) has disrupted the lives and work of nearly every Chinese person. However, a new trend has been on the rise: many have turned themselves into livestreaming users orfollowers.According to Questmobile, a professional big data intelligence services provider in China, the audience for Douyin, Kuaishou and other livestreaming platforms surged to 574 million during the Spring Festival holiday, up 35 percent from 2019.Confined at home, away from their friends and loved ones, people turn to livestreaming to reach out to the world. For them livestreaming can help them share their lives and interest with a global audience, which will give them the sense of being “in the moment”. Even as viewers, they can also engage immediately with livestreamers by commenting and making suggestions.“When I comment on the livestreaming videos, I’m not simply an audience member, but also an active part of the program. That gives me a sense of engagement,” an Internet user named Wang Hao told People’s Daily.Livestreaming is not only for fun, but also a new tool for many businesses. Affected by the pandemic, many businesses had to stop their sales in physical stores. To meet their business goals and survive during these trying times, many chose to livestream to revive their businesses.Joyoung, a leading maker of small kitchen appliances, is a good example. The company not only added a number of broadcasts each day to advertise their products, but also shared the menus that were beneficial to health. “The responses to our livestreaming shows have been well beyond expectations,” Kang Li, who oversees the company’s livestreaming unit, told China daily. “It’s a natural opportunity to truly bond with our followers.”Like it or not, livestreaming is likely to go mainstream in China for both entertainment and business.4. What is the purpose of writing the second paragraph?A. To introduce some popular livestreaming platforms in China.B. To report data on the development of livestreaming in 2019.C. To show that Chinese people spend too much time on livestreaming apps.D. To prove that livestreaming are becoming increasingly popular in China.5. What does Wang Hao think of commenting on livestreaming?A. It is boring to make comments.B. It is the only way to share viewers’ lives.C. It makes people feel involved in the stream.D. It helps livestreamers improve themselves.6. What do paragraphs 5&6 mainly talk about?A. Livestreaming replaced physical stores in many areas.B. Many businesses turned to livestreaming platform for marketing.C. Livestreaming platforms faced challenges during the pandemic.D. Livestreaming platforms made changes to their services.7. How does the author feel about thefuture of livestreaming？A. Positive.B. Uncertain.C. Disappointed.D. Confused.CFirst grader Gavin Clampett was diagnosed(诊断) with Tourette’s Syndrome at the age of five. Due to the neurological(神经的) disorder, he always experiences a variety of sudden uncontrolled movements and sounds.The uncontrollable actions mean that he often gets dirty looks from strangers in public and kids make cruel comments on the school bus and in class. In an effort to prevent the unkind comments, Gavin’s mother, 32yearold Rebecca Clampett helped him make a video with his sister Brynn, nine, and played it to pupils at his school to help them understand the condition.In the video, which Rebecca also shared on YouTube, Gavin’s sister Brynn starts by answering the question “What is Tourette’s Syndrome?” She explains, “It is a neurological disorder, which means it affects the brain so that a person makes unwanted movements. These are called tics(抽搐), but not like a tic that is found outside. These tics can be very noticeable or not very noticeable, quiet or loud.”School can be hard for all kids. That canbe even harder for children like Gavin because they have to facepeople who laugh at them every single day. “I feel like my brother and every other kid who has Tourette’s Syndrome are brave. So be kind to them and don’t treat them differently because they are just like you”, Brynn says in the video.Gavin concludes, “Everyone could play with someone. Some people think I can’t because I’m different but actually I can. Some are afraid that I will say dirty words, but actually I won’t. The disease bothers me a little, but I’m OK.”8. What can we know about Tourette’s Syndrome?A. It can be treated with drugs.B. It is usually found at an early age.C. People with it will say dirty words.D. People with it can make uncontrolled sounds.9. Because of the disease, others often _________.A. take pity on GavinB. give a hand to GavinC. keep away from GavinD. look down upon Gavin10. In the video, Gavin’s sister __________.A. explains her brother’s diseaseB. expresses her love for her brotherC. complains about unkind commentsD. encourages others to donate money11. What can be used to best describe Gavin?A. Lucky.B. Helpless.C. Optimistic.D. Stubborn.DWhen Chip heard the mail truck arriving on his sixth birthday, herushed out—not knowing that he’d come back with a treasure.Outside the house, which was decorated with birthday balloons, postwoman Shelley held a pile of boxes. One was marked with Chip’s name and a greeting for his Special day, November 5.“So,” when he came running out the door, she said, “You must be Chip!” And he said,“Yes.” She said, “Today’s your birthday?” And he started smiling. Shelley said, “So, let me see if I can find you something for your birthday.”She checked her pocket and surprised him with a gift: a dollar bill and four quarters.On this day, the 42-year-old postwoman made one little boy very happy. “He was very excited,” said his mom, Bonnie. “He came running back in the house just waving his money.” Chip is saving up to buy a Spider-man action figure.“Our family has had money problems since I lost my job. Gestures like that are valuable memories.” Her hope is that Chip and his eight-year-old sister, Bennett, will remember this when they grow up. “Not the ugly that is out there right now, but the good and the kind and the giving.”A photo of a smiling Chip and Shelley next to the mail truck has been shared widely on social media. Shelley said she was just trying to give back, because people are often nice to her eight-year-old son, Joshua.On a recent day, Chip heard the mail truck and rushed out again, this time to deliver an envelope with a thank-you card for his favorite mail carrier. Since that day, the families have kept in contact. Shelley has struggled to find someone who can take care of her son, and Bonnie has agreed to watch him at her home while his mom is on her mail route.12. Why did Chip rush out when he heard the mail truck the first time?A. To thank the postwoman.B. To get a gift box mailed to him.C. To receive birthday wishes from the driver.D. To watch the mail truck.13. What did Shelley do to make Chip happy?A. She gave him some pocket money.B. She sent him some birthday balloons.C. She presented him with a greeting card.D. She bought him a Spider-man action figure.14. What is Chip’s mother’s attitude towards Shelley?A. Grateful.B. Curious.C. Doubtful.D. Indifferent.15. What does Chip’s mother do to help Shelley?A. She offers to deliver the mails for her.B. She often helps drive her mail truck.C. She looks after her son when she is at work.D. She posts pictures of her mail truck on social media.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
2020-2021学年同济大学实验学校高三英语期中考试试卷及参考答案
2020-2021学年同济大学实验学校高三英语期中考试试卷及参考答案第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AUNUSUAL ATTRACTIONS ON THE WATERBangkokFloating MarketsThere are many floating markets where goods are sold from boats. While modem markets are more popular, floating markets still are huge attractions for local tourism. In Bangkok Floating Markets,Thailand, one of the most popular ones, any visitors can buy local foods and traditional hand-made souvenirs.Bregenzer Festspiele（Opera festival）The Bregenz Festival is held every year from July to August inVorarlberg,Austria. It has the world's largest stage on the water. The performances are different every year but they are usually united by one theme. The decorations（装饰）are very impressive and are worth seeing.Viva, ArtificialIslandArtificial islands are not something new. What makes this island special is that . it is floating. Viva is the largest out of three man-made islands along with Vista and Tera, all situated inSeoul,South Korea. The island weighs 2,000-tons and is technically a buoy（浮标）.The island unfortunately is not carbon-neutral（碳中和）but it has solar panels which can generate electricity to power the hall, restaurants and shopping malls. MarinaBayFloating Platform StadiumThis stadium was built as a temporary solution while Singapore National Stadium was rebuilt. Now it is usedfor different sporting events, concerts, and festivals. In particular, it was once used for the opening and closing ceremonies during the 2010 Summer Youth Olympics.1. What can visitors do at Bangkok Floating Markets?A. Performing.B.Boating.C. Shopping.D. Swimming.2. What do you know about Viva?A. It is the biggest island inSouth Korea.B. It has the equipment to harness solar energy.C. It is the largest floating stage on the water.D. It is a man-made island only for low-carbon life.3. Which attraction should you choose to watch a basketball match?A. Bangkok Floating Markets.B. Bregenzer Festspiele.C. Viva, ArtificialIsland.D.MarinaBayFloating Platform Stadium.BSince I was born and brought up in a rural town, I have a great interest in nature. Using the chance of studying abroad in my second year at college, I decided to go toCanadajust because I wanted to see the beautiful phenomena there So after I finished the study program, I went toYellowknifein theNorthwest Territories.I clearly remember the sixth night inYellowknife. Suddenly my host mother came to my room around 8 p.m. and told me to change clothes and go outside quickly carrying her camera.The northern lights were flickering (闪烁) in the sky! I was shocked and just stood there with my mouth open.I forgot to take pictures of the mysterious lights.Since that night, whenever it was sunny, I went outside at night and looked at the sky. It was so cold that I lost all feeling in myhands and feet.As I took pictures of the northern lights, I came to find a characteristic movement of the lights. They first appear in the north part of the sky and then they gradually come down to the south part of the sky. After that, suddenly, they come in the middle of the north and south only for a while, which is the time when the best northern lights can be seen. Since it is only a few seconds for the northern lights to come down to the middle of the sky, it is very hard to get good pictures.The stronger the sun acts, the better and stronger the northern lights flicker in the sky. That’s because they come about from the collisions (碰撞) between atmospheric gases and the solar wind. Much more solar wind comes to the earth when the sun is active, whichleads to the best northern lights. And the color1 s of the northern lights depend on the height of the collisions and the kinds of gases.4. Why did the host mother ask the author to go out?A. She wanted to take a picture of him.B. She wanted to take a walk with him.C. She wanted to tell him something important.D. She wanted him to see the northern lights.5. The author forgot to take pictures after going out because ______.A. the host mother didn’t remind him to take the cameraB. he was shocked by the wonderful sightC. the lights flickering in the sky disappeared too soonD. he lost all feeling in his hands and feet6. When is the best time to see the northern lights?A. When they appear in the north part of the sky.B. When they come down to the south part of the sky.C. When they are between the north and south.D. When they rise in the east part of the sky.7. What does the last paragraph mainly tell us?A. Waysto take good pictures.B. The relationship between the sun and the northern lights.C.The color1 s of the northern lights.D. The time of the best northern lights.CWho is a genius? This question has greatly interested humankind for centuries.Let's state clearly: Einstein was a genius. His face is almost the international symbol for genius. But we want to go beyond one man and explore the nature of genius itself. Why is it that some people are so much more intelligent or creative than the rest of us? And who are they?In the sciences and arts, those praised as geniuses were most often white men, of European origin. Perhaps this is not a surprise. It's said that history is written by the victors, and those victors set the standards for admission to the genius club. When contributions were made by geniuses outside the club—women, or people of a different color1 or belief—they were unacknowledged and rejected by others.A study recently published bySciencefound that as young as age six, girls are less likely than boys to say that members of their gender(性别)are “really, really smart.” Even worse, the study found that girls act on that belief: Around age six they start to avoid activities said to be for children who are “really, really smart.” Can our planet afford to have any great thinkers become discouraged and give up? It doesn't take a genius to know the answer: ly not.Here's the good news. In a wired world with constant global communication, we're all positioned to seeflashes of genius wherever they appear. And the more we look, the more we will see that social factors(因素)like gender, race, and class do not determine the appearance of genius. As a writer says, future geniuses come from those with “intelligence, creativity, perseverance(毅力), and simple good fortune, who are able to change the world.”8. Whatdoes the author think of victors' standards for joining the genius club?A. They're unfair.B. They're conservative.C. They're objective.D. They're strict.9. What can we infer about girls from the study inScience?A. They think themselves smart.B. They look up to great thinkers.C. They see gender differences earlier than boys.D. They are likely to be influenced by social beliefs10. Why are more geniuses known to the public?A. Improved global communication.B. Less discrimination against women.C.Acceptance of victors' concepts.D. Changes in people's social positions.11. What is the best title for the text?A. Geniuses Think AlikeB. Genius Takes Many FormsC. Genius and IntelligenceD. Genius and LuckDAs an eco-minimalist, Su Yige has maintained an environmentally friendly and sustainable lifestyle for the past three years while studying in Canada. She takes her own bag when she goes grocery shopping and uses second-hand items as often as possible. She avoids almost all paper-related products unless she has to use a public toilet while away from home.Diligence and thrift are time-honored traditional Chinese virtues. Su's family is a good example of this, according to the native of Weihai, Shandong province. Although they have little formal “green” knowledge, her parents lead a very environmentally friendly life.For example, the family has used the same hair dryer for more than a decade, and Su remembers many of her mother's clothes from as far back as kindergarten. “As long as something can still be used, my mother will notreplace it with a new item,” she said.“I frequently asked my father to bring the plastic bag back home after dumping our waste in the trash bin. He was unhappy, and argued that instead of making that request, I should go downstairs to dump the waste myself” she said. In another move, her father criticized her for doing too much shopping online. Eventually, they both made steps toward becoming better environmentalists. Her father brings the bag back for reuse and she has only bought two pieces of clothing online in the past six months.Back in Canada, Su is looking forward to finding a job related to sustainable development in China after she graduates as a computer science major in the summer.12. Which of the following best describes Su Yige?A. Conservative.B. Nostalgic.C. Economical.D. Productive.13. What can be found about Su's mother according to the third paragraph?A. She has a lot of formal green knowledge.B. She regards using the same items as a lifestyle.C. She always wears old clothes due to lack of money.D. She will not replace the old items until they are out of style.14. What can be inferred about Su and her father?A. Both of them like to criticize each other.B. Su's father is particular about her clothes.C. The relationship between them is very tense.D. They urge each other to become more environmentally friendly.15. What can we learn about the author soon after she graduates in Canada?A. She will stay there to look for a job.B. She will put effort into computer science.C. She will devote herself to her motherland's future.D. She will come back to China to stay with her parents.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
2021届同济大学实验学校高三英语下学期期中试卷及参考答案
2021届同济大学实验学校高三英语下学期期中试卷及参考答案第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AChina has 410K5Gbase stationsChina built 257,000 new 5G base stations in the first half of the year, according to the Ministry of Industry and Information Technology (MIIT).Shipments of 5G phones reached 8623 million unis in China, with 5G package users hitting 66 million by the end of June, said Wen Ku, head of information and communication at the ministry.To give full play to the commercialization of 5G, more policies should be implemented to boost the vitality of the market, Wen said, adding that international cooperation in 5G technology, industry and application should be strengthened.AG600 seaplane’s test flightKunlong, China’s homegrown AG600 large amphibious aircraft, conducted its first sea-based test flight on Sunday morning, marking a new milestone in the program.The AG600 is China’s second amphibious aircraft, after the SH-5, which was developed in the 1970s for military purposes and has been retired for a long time.These specifications make it the world’s biggest amphibious aircraft, surpassing Japan’s ShinMaywa US-2 and Russia’s Beriev Be-200.Once in service, it will put an end to the absence of a large rescue aircraft in China and will be very useful in the national emergency rescue and disaster relief systems.Beidou products land abroadAccording to Ran Chengqi, director general of China Satellite Navigation Office, Beidou has been constantly deepening its compatibility, interoperability and cooperation with the US’ GPS, Russia’s GLONASS and the EU’s Galileo. It has also entered international organizations of civil aviation, maritime affairs, search and rescue satellites and mobile communication.BDS-based services have been successfully applied in land mapping, precision farming, digital development and smart port construction in member countries of ASEAN, South Asia, Eastern Europe, West Asia and Africa.1. What can we learn from this passage?A. The total number of 5G phones has reached a new level.B. Kunlong, unlike SH-5, is not just for military purposes.C. Technologies mentioned above need more cooperation with others.D. BDS-based services have been provided for users in many countries.2. Which of the following is most probably related to agriculture?A. 5G phonesB. BDS-based servicesC. AG600 seaplaneD. Beriev Be-2003. If your friend did a course in marketing management, he may choose a job in a ________.A. 5G technology related marketB. large amphibious aircraftC. BDS-based projectD. China Satellite Navigation OfficeBBabies who frequently communicate with their caregivers using eye contact and vocalisations(发声)at the age of one are more likely to develop greater languages skills by the time they reachtwo,according to new research.In the study, researchers looked at 11-and 12-month-od babies' vocalisations. gestures and gaze behaviours ,and at how their caregivers responded to them.To measure he interactions ,the researchers videoed infants(婴儿)and caregiver at home,and asked them to play as usual.They took those recordings back to the universityThe scientists then used statistical models to find that the best predictor of vocabulary at 24 months was when infants were seen to use vocalsatioms while looking at their caregiver's face when they were about a year old.The benefits were even greater when these interactions were followed by responses from the caregiver.The statistics showed that at 19 months,children had an average of about 100 words.Those who exhibited the beneficial interactive behaviour earlier in life were seen to have an average of about 30 extra words."The message of this paper is thatitis the result of a joint effort; noticing what your child is attending to and talking to them about it will support their language development." said McGillion, a co-author of the work."The joy of this message is that that can happen in any context... across any part of your day.It's not something that requires special equipment or even lots of time.I can happen when you're doing the laundry,for example—when you're taking out the socks, you can talk about socks...in the park, in the car, at mealtimes,at bathtimes.This finding can be used in any context,"added McGillion."This is a developmental snapshot in the first year of life, but children are constantly growing and changingand so are their behaviours. It would be interesting to look at these sorts of behaviours again as children progress through the second year of life to see what's happening there,"said Donnellan,the lead author on the study.4. How did the researchers get the findings?A. By interacting with babies.B. By asking babies to vocalize.C. By analyzing relevant recordings.D. By referring to the previous statistics.5. What does he underlined word "it"in Paragraph 5 mean?A. Infants' eye contact.B. Infants' larger vocabulary.C. The response from caregivers.D. The best predictor of vocabulary.6. What did McGilion say about infants' interactive behaviour?A. I's easy to perform.B. It's complex to understand.C. It's difficult to copy.D. It's interesting to video.7. What might further studies be on?A. Children's academic progress.B. Children's growing environment.C. Children's potential physical development.D. Children's behaviours across more age ranges.CI was so worried about handing my little boy over during his first week of school, but you made it easier. You smiled at him like a mother would at her own child.You showed warmth and your hugs were always on offer.After a day in class with you, Charlie would come home singing. Whenever I hear Do Your Ears Hang Low or see him stretching to the sky when singing about the days of the week, I will think of you.I didn't tell you at the time, but I loved your morning song so much that Iimplementedit in my own class (I'm a teacher, too).When you saw I was troubled, you hugged me with your smile and I knew everything would be OK. You made parents feel as cared for as our children.In the short time I knew you; you taught me about the type of teacher Idesire to be. You never seemed disturbed by the mountain of paperwork or impossible work-life balance that comes with the role. Instead, you appeared to embrace every minute.I can't understand why you've been taken from us. Telling Charlie was one of the hardest things I've had to do.I'm not sure he fully understands, but he told me he loved you and has been asking whether your"robot powers"will work in heaven.A friend once told me white feathers are angels telling us that loved ones in heaven are well. On the first day collecting the children without you，a white feather floated through the sleet (雨夹雪). Watching the younger ones bounce and gigle as they tried to catch it was beautiful.I wish I had told you all of this when you were with us.I hope that you knew how you brought happiness to everyone you met and how loved you were. Goodbye, Dear Friend.8. What does the underlined word "implemented" in Paragraph l probably mean?A. Looked back on.B. Looked forward to.C. Thought highly of.D. Made use of.9. What can we learn from the passage about parents?A. They need to sing songs before children.B. They need to feel the affection as well.C. They find it hard to handle their kids.D. They find it necessary to hug the teachers.10. The writer mentioned "white feather" in Paragraph 4 mainly to ______.rm us of the loved one's deathB. remind us it's time for a snowball fightC. tell us the teacher stays in our mind after deathD. warn us of the falling snow when collecting children11. What's the writer's main purpose in writing this article?A. To make a remark on Charlie's teacher.B.To say goodbye to her fellow teacher.C. To take pity on her fellow teacher.D. To recall and show respect for Charlie's teacher.D“We are running out of space and the only places to go to are other worlds... Spreading out may be the onlything that saves us from ourselves. I am convinced that humans need to leave Earth.” These are the words of the famous scientist Stephen Hawking, spoken at a science festival inNorwayin 2017, a year before his death.Hawking was not alone in this view. Many experts feel that the only way for humanity to last far into the future is to colonize other planets. That way, if an asteroid, a terrible disease, nuclear war, or some other disaster strikes Earth, civilization as we know it would still have a chance. Mars is one of the most tempting destinations. NASA, theUnited Arab Emirates, the private company SpaceX, and the organization Mars One all have plans to send humans there. “Either we spread Earth to other planets, or we risk going extinct, SpaceX founder Elon Musk said at a conference in 2013.But not everyone agrees that colonizing Mars or any other planet is such a great plan. The most common argument against going is that it’s just too expensive or dangerous. It will take huge amounts of money and other resources just to get people there, let alone set up a place for them to live. It’s not even clear if humans could survive on Mars. One of the biggest dangers there is deadly radiation that bombards the planet.Maybe all the time and money people would pour into a Mars mission would be better spent on more urgent projects here on Earth, like dealing with poverty or climate change. Some experts argue that handling a problem like an asteroid strike or disease outbreak while staying here on Earth would be much easier and less expensive than surviving on a new planet.In addition, moving to a new planet could harm or destroy anything that already lives there. Mars seems uninhabited, but it could possibly host microbial life. Human visitors may destroy this life or permanently change or damage the Martian environment. Some feel that’s too much of a risk to take.What do you think? Should humans colonize outer space or stay home?12. What can be inferred from the passage?A. Many experts insist that humans should take the risk.B. Mars is the most attractive destinations for human beings.C. Hawking firmly believes the only way to save humans is moving to Mars.D. All the other experts don’t agree with Hawking’s idea.13. Why do some experts disagree with the plan to colonize Mars?A. It will cost much more money to settle on Mars than on Earth.B. It is too long a distance from the Earth to the Mars.C. Human visitors will bring diseases to Martian environment.D. The deadly radiation that bombards the planet is the biggest danger.14. What’s the writing purpose of the passage?A. To raise people’s awareness of protecting the environment.B. To present different opinions on whether to move to the Mars.C. To arouse readers’ reflection on whether to colonize outer space.D. To inspire people to deal with the environmental problems.15. In which section of a magazine is the passage most likely from?A. Fiction.B. Current affairs.C. Social Studies.D. Science.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
2020-2021学年同济大学实验学校高三英语期中试卷及答案
2020-2021学年同济大学实验学校高三英语期中试卷及答案第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项ANo one knows when the first printing press was invented or who invented it. but the oldest known printed text originated in China during the first millennium (千年) AD.The Diamond Sutra (《金刚经》), a Buddhist book from Dunhuang, China during the Tang Dynasty, is said to be the oldest known printed book.The Diamond Sutrawas created with a method known as block printing (雕版印刷), which used boards of hand-carved wood blocks in reverse.It was said that the moveable type was developed by Bi Sheng. He was fromYingshan,Hubei,China, living from 970 to 1051 AD. His method replaced panels of printing blocks with moveable individual Chinese characters that could be reused. The first moveable Chinese Characters were carved into clay and baked into hard blocks that were then arranged onto an iron frame that was pressed against an iron plate.The earliest mention of Bi Sheng’s printing press is in the bookDream Pool Essays, written in 1086 by Shen Kuo, who noted that his nephews came into possession of Bi Sheng’s typefaces (字体) after his death. Shen Kuo explained that Bi Sheng did not use wood because the texture is inconsistent (不一致的) and absorbs wetness too easily.By the time of the Southern Song Dynasty, which ruled from 1127 to 1279 AD, books had become popular in society and helped create a scholarly class of citizens who had the capabilities to become civil servants. Large printed book collections also became a status symbol for the wealthy class.1. When was Bi Sheng’s printing press first introduced in history?A. After Bi Sheng died and his nephews owned his typefaces.B. When books became popular in the Southern Song Dynasty.C. After the block printing was replaced by the moveable type printing.D. WhenThe Diamond Sutrawas printed into a book.2. What can we infer from the passage?A. Shen Kuo made great contributions to printing.B. The moveable type printing was invented earlier than block printing.C. Printed books were hard to get in the Song Dynasty.D. By the Southern Song Dynasty, books had helped people get to higher social positions.3. Why does the author write this passage?A. To show that Buddhism was popular in the Tang Dynasty.B. To introduce the early history of printing.C. To memorize Bi Sheng, developing the moveable type printing.D. To indicate the advantages of moveable type printing.BOnce a rich and clever boy had practically everything a boy could want, so he was not interested in most toys. But he couldn't get a very old mirror, and heconvinced his parents to buy it from mysterious（神秘的）old man. When the mirror arrived home, the boy went to see his reflection in it. His face looked very sad indeed. He tried smiling and making funny faces, but his reflection continued with its sad expression. "What a terrible mirror! It's the first time I've seen a mirror that didn't work properly!" the boy jumped violently.That same afternoon he went into the street to play and bought a few toys, but on his way to the park he saw a little girl who was crying her heart out. The girl was crying so much and looked so lonely that the rich boy went over to help her and to see what had happened. The little girl told him that she had lost her parents.Together the two set off in search of the parents. As the little girl wouldn't stop crying, the boy spent his money buying her sweets to cheer her up. Finally, after much walking, they found her parents who were much worried and were looking for her everywhere.The rich boy said goodbye to them. As it was getting late, he decided to head for home, without being able to play. At home, he went to his room, and noticed a shining light in the corner, the same corner he had left the mirror in. Seeing this, he went over to the mirror, and realised that the light was coming from his own body, so radiant（闪亮的）with happiness he had become.And so he understood the mystery of that mirror, the only mirror which could faithfully reflect the true joy of its owner. He realised it was true. He felt very happy at having helped that little girl. And since then, each morning when he looked in that mirror and failed to see a special shine, he knew what he had to do to bring it back.4. How did the boy feel when he first looked into the mirror?A. Embarrassed.B. Angry.C. Worried.D. Delighted.5. Why was the little girl crying so hard?A. She couldn't find her parents.B. She couldn't get the mysterious mirror.C. Her parents couldn't buy toys for her.D. The boy refused to give his toys to her.6. What could the boy see in the mirror after he went back from the park?A. A shining toy.B. A broken mirror.C. His happy face.D. The lovely girl.7. What is the purpose of this text?A. To tell us a horrible story.B. To introduce to us a strange mirror.C. To warn us not to be selfish.D. To encourage us to help others.CIf there is no difference in general intelligence between boys and girls, what can explain girls’ poor performance in science and math?It hasbeen suggested that girls do not take math courses, not because they are difficult, but for social reasons. Girls do not want to be in open competition with boys because they are afraid to appear less feminine (女性的) and attractive (有魅力的).However, there are still more high-achieving boys than girls when taking math exams. This difference appears to be worldwide. Biological explanations have been offered for this, but there are other explanations too.Perhaps the difference which comes out during the teenage years has its roots in much earlier experiences. From their first days in kindergarten, boys are encouraged to work on their own and to complete tasks. Facts show that outstanding mathematicians and scientists have not had teachers who gave answers.Besides, there can be little doubt that teachers of math and science expect their boy students to do better at these subjects than their girl students. They even appear to encourage the difference between boys and girls. They spend more time with the boy students, giving them more time to answer questions and working harder to get correct answers from them. They are more likely to call on boys for answers and to allow them to take the lead in classroom discussion. They also praise boys more frequently. All of this seems to encourage boys to work harder in science and math and to give them confidence that they are able to succeed.Such a way of teaching is not likely to encourage girls to take many math and science courses, nor is it likely to support girls who do. When it comes to these subjects it seems certain that school widens the difference between boys and girls.8. Why does the author raise a question in paragraph 1?A. To find differences between boys and girls.B. To explain the poor performance of girls.C. To ask readers a question.D. To introduce the topic.9. The text mainly discusses ________ reasons for the difference between boys and girls in scientific achievements.A. biologicalB. personalC. socialD. historical10. What does the text say about great mathematicians?A. Their teachers did not offer answers to them.B. They started learning math at an earlier age.C. They showed mathematical abilities in their teenage years.D. Their success resulted from their strong interest in math.11. The author would probably agree that ________.A. boys and girls learn in the same wayB. boys and girls are equal in general intelligenceC. girls are more confident in themselves than beforeD. girls should take fewer science courses than boysDCuckoos don’t bother building their own nests—they just lay eggs that perfectly imitate those of other birds and take over their nests. But other birds are wishing up, evolving some seriously impressive tricks to spot the cuckoo eggs.Cuckoos are often know asparasites, meaning that they hide their eggs in the nest of other species. To avoid detection, the cuckoos have evolved so that eggs seem reproduction of those of their preferred targets. If the host bird doesn’t notice the strange egg in its nest, the little cuckoo will actually take the entire nest for itself after it comes out, taking the other eggs on its back and dropping them out of the nest.To avoid this unpleasant fate for their young, the other birds have evolved a few smart ways to spot the fakes, which we’re only now beginning to fully understand. One of the most amazing finds is that birds have an extra colour-sensitive cell in their eyes, which makes them far more sensitive to ultraviolet wavelengths and allows them to see a far greater range of colours than humans can. This allows cautious birds to detect a fake egg which might be exactly the same to our eyes.Fascinatingly, we’re actually able to observe different bird species at very different points in their evolutionary war with the cuckoos. For instance, some cuckoos lay their eggs in the nests of the redstarts. The blue eggs these cuckoos lay are practically alike to those of the redstarts, and yet they are still sometimes rejected.Compare that with cuckoos who target dunnocks. While those birds lay perfectly blue eggs, their cuckoo invaders just lay white eggs with brown irregular shaped spots. And yet dunnocks barely ever seem to notice the obvious trick.Biologists suspect these more easily fooled species like the dunnocks are on the same evolutionary path as the redstarts, but they have a long way to go until they evolve the same levels of suspicion. What’s remarkable is that the dunnocks fakes are so bad and the redstart ones so good, and yet cuckoos are still more successful with the former than the latter.It speaks to just how thoroughly a species’ behavior can be changed by the pressures of natural selection, or it might just be a bit of strategic cooperation on the part of the dunnocks. Biologists have suggested that these birds are willing to tolerate a parasite every so often because they don’t want to risk accidentally getting rid of one of their own eggs.12. This passage can be most likely found in a ________.A. science surveyB. nature magazineC. zoo advertisementD. travel journal13. What does the underlined word “parasite” in paragraph 2 most probably refer to?A. Animals that work together to raise young.B. Small harmful animals such as worms or mice.C. Animals that can adapt to changing environments.D. Animals which live on or inside other host animals.14. Which of the following is TRUE about the dunnock according to the passage?A. It is colour-blind and therefore cannot identify foreign eggs in the nest.B. It can easily remove cuckoo eggs from the nest because fakes are so bad.C. It is a host bird that is more likely to raise a cuckoo chick than the redstart.D. It is unable to evolve and hence accepts cuckoo eggs that appear in the nest.15. Which of the following can be inferred from the passage?A. Dunnocks may eventually learn to recognise foreign eggs.B. Redstarts seem to be less suspicious compared to dunnocks.C. Cuckoo birds are good at taking responsibility for their own young.D. It is very easy for cuckoos to imitate the colouring of the dunnock’s egg.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
同济大学课程考核试卷(A卷)
同济大学课程考核试卷（A卷）2008—2009学年第二学期命题教师签名：审核教师签名：课号：102214课名：传感器与检测技术考试考查：考试此卷选为：期中考试( )、期终考试( ■ )、重考( )试卷年级专业学号姓名得分二、选择题（每题2分，共24分）1. 按敏感元件与被测对象之间的能量关系，传感器可分为（D ）传感器。
A．温度型和速度型B．物性型和结构型C．机械型和电子型D．能量转换型和能量控制型2. 二阶传感器系统中，属于其动态特性的表征参数是（C ）。
A．线性度B．灵敏度C．超调量D．漂移3. 为了减小非线性误差，采用差动变隙式电感传感器，其灵敏度和单线圈式传感器相比，( D )。
A. 降低二倍B. 降低一倍C. 提高二倍D. 提高一倍4. 电感式传感器采用变压器式交流电桥作为测量电路时，如想分辨出衔铁位移的方向，则应在电路中加（C ）电路。
A．加法器B．检波C．相敏检波D．鉴频5. 若两个应变量变化完全相同的应变片接入测量电桥的相对桥臂，则电桥的输出将（A ）。
A．增大B．减小C．不变D．可能增大，也可能减小6. 压电传感器的等效电路，（D ）。
A．可以等效为电压源，不可等效为电荷源B．可以等效为电压源，不可等效为电荷源C．既不可等效为电压源，也不可等效为电荷源D．既可等效为电压源，也可等效为电荷源7. 电涡流在金属导体中的形成范围为（D ）A.传感器线圈外径附近B.传感器线圈内径附近C.表面D.表面且传感器线圈外径附近8. 光电耦合器件由发光元件和光电接收元件组成，（C ）。
A. 可实现电路隔离，不可进行电平转换B. 不可实现电路隔离，可进行电平转换C. 可实现电路隔离，可进行电平转换D. 不可实现电路隔离，不可进行电平转换9. 压电陶瓷与天然石英的压电性能比较，通常（A ）。
A．压电常数大，居里点低B．压电常数小，居里点高C．压电常数大，居里点高D．压电常数和居里点都差不多10. 应变式传感器用电桥做转换电路，理论上电桥输出带有非线性误差的是（A ）A．单臂电桥B．半桥C．全桥D．半桥和全桥11. 对热电耦传感器，形成热电势的必要条件是：( A )A．两种导体材料不同；节点所处的温度不同B．两种导体材料相同；节点所处的温度不同；C．两种导体材料不同；节点所处的温度相同D．两种导体材料相同；节点所处的温度相同12. 在差动变压器实验中，当衔铁过零位时，输出电压( D )。
2020届同济大学实验学校高三英语期中考试试卷及参考答案
2020届同济大学实验学校高三英语期中考试试卷及参考答案第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AOur Teen Summer Spanish Program is two weeks of fun, educational excitement that helps students learn Spanish fast. Our Spanish summer program allows our students to learn from highly trained, certified teachers and be absorbed in the language and theculture of Costa Rica.Features include:* Intensive(强化的) daily Spanish classes* Extracurricular classes in dance, cooking, music, and handiwork* Outdoor activities including hiking, camping, rafting, and ziplining(高空滑索)* Homestay with a local Costa Rican family* Volunteer work in needy neighborhoodsOur Teaching Methods:We are proud to use TPRS---Total Physical Response Storytelling---in our curriculum. This innovative method uses strange and amusing stories to teach new vocabulary, increase fluency, and get students involved by giving them the opportunity to alter the details themselves. Because of the silliness, creativity, and repetition involved, TPRS allows students to learn easily and remember information effortlesslyMemorizing vocabulary and listening to lectures on grammar are slow, inefficient ways to learn a new language. The best way to truly learn and commit new material to memory is through conversation. In our Spanish classes, students can expect to speak up to 80% of each class. By speaking in the new language freely and consistently, students can see progress faster because they are using the new grammar and vocabulary that they have learned at the same time. This helps the brain remember the new words and grammar structures for future use, making it much easier to progress.1.What does the program do?A.It offers weekly Spanish classesB.It focuses more on outdoor activitiesC.It gives teachers a chance to receive trainingD.It provides activities about the Spanish culture2.What is the best way to learn a language according to the text?A.Memorizing a larger vocabularyB.Speaking more in the new language.C.Mastering more grammar structuresD.Writing stories to share with others3.What is the purpose of the text?A.To employexperienced Spanish teacherB.To hire foreign volunteers for a programC.To attract teen foreigners to a programD.To introduce language learning methodsBAn unmanned Chinese spacecraft left the earth on a trip to the planet Mars on Thursday. The launch（发射）marks the start of one of China's most important space explorations. China's national space agency launched the spacecraft called Tianwen-1 fromthe Wenchang Spacecraft Launch Center on Hainan Island.The name Tianwen means “Questions to Heaven” in Chinese. The spacecraft took off on China's largest carrier rocket, the Long March 5, and about 36 minutes later, the spacecraft, including an orbiter（轨道飞行器）and a rover（漫游车），was sent into the Earth-Mars orbit. It is expected to reach the orbit of the red planet next February. Tianwen-1 will finish three scientific goals—orbiting the red planet, landing on the Mars and sending a rover to the landing site.Tianwen-1 carries several scientific instruments to observe the planet's atmosphere and surface. It will do a series of scientific researches on the planet's soil, geological structure, environment, atmosphere and water. Besides its daily work of exploring the surface of Mars for 90 days, it will also report back to the earth about its experiences on the red planet, which is millions of miles away. According to experts, discovering signs of life will be its first and most important scientific goal.Tianwen-1's successful landing will make China the second nation to place a spacecraft on Mars. The United States has landed eight vehicles on Mars since 1976. China will be the first to successfully orbit, land and place a vehicle in the same mission. This is China's first independent mission to Mars. The task in 2011 failed when a Russian rocket carrying a Chinese orbiter had problems after launch, and was unable to escape the Earth orbit. Last year, China's Chang e-4 spacecraft became the first to make a landing on the far side of the moon.4. When will Tianwen-1 enter the orbit of Mars?A. 36 minutes later.B. Next Thursday.C. In 90 days.D. Next February.5. What is the main task of Tianwen-1 according to experts?A. Orbiting the Mars.B. Landing on the Mars.C. Discovering signs of life.D. Sending a rover to the landing site.6. Which of the following statements is mentioned in the text?A. Tianwen-1 is the second vehicle landed on the Mars.B. The United States is the first to land vehicles on the Mars.C. Russia helped China place Tianwen-1 on the Mars.D. Chang，e-4 was the first to make a landing on the moon.7. Where can you find this article?A. In a newspaper.B. In a diary.C. In a sci-fi novel.D. In a guide book.CAs a rider, Anna Kiesenhofe’s Olympics victory might be a surprise. The winner of the road race at the Tokyo Olympics left the sport at the end of 2017 when she found herself out of contract (合同). She came into Tokyo without a professional team and left as an Olympic champion.The 30-year old began her cycling career in 2014 after running injuries that prevented her from continuing her pursuits of triathlon (铁人三项). She later joined a Catalan team and won the Spanish National Cup in 2016.The then-26 year old signedher first professional contract with Lotto Soudal Ladies for the following season. However, she ended her 2017 campaign in April and did not sign a contract for 2018, eventually taking a year off the bike. In 2019, Kiesenhofer came back to the sport as a rider, winning the Austrian national road race. Despite her results, Kiesenhofer sill had no professional contract while going into the Tokyo Olympics.Kiesenhofer was the first rider to attack in the Olympic road race, eventually forming a breakaway along with Carl Oberholzer, Omer Shapira, Vera Looser and Anna Plichta, which went on to reach a gap of 11 minutes. After Looser and Oberholzer were dropped, Kiesnhofer ataced her two remaining breakaway companions.After Shapira and Plichta were caught by the peloton (主车群), the rest of the riders seemed to believe that they were racing among themselves for Gold, not knowing that Remehofere was still in front. While it might be a misjudgment from the rest of the peloton that allowed Kiesenhofer to keep her lead of more than two minutes, other riders’ mistakes should not detract from the Austrian’s efforts.Off the bike the new Olympic Champion has a PhD in mathematics after studying at the Technical University of Vienne as well as at Cambridge University. She currently works at the University of Lausanne.8. Why did Anna give up triathlon?A. She got injured.B. She lost interest in it.C. She had to attend university.D. She never won a medal.9. Which is the right order of the following events?①She ended her campaign.②She took a year off the bike.③She began her cycling career.④She won the Austrian national road race.⑤She won the Spanish National Cup.A. ③④①②⑤.B. ②③④①⑤.C. ③⑤①②④.D. ④②③①⑤.10. What were the riders of the peloton unaware of at the Tokyo Olympics?A. The road race was so difficult.B. Anna was a new rider.C. They had caught up with Anna.D. Anna took the lead of them.11. What is Anna’s present job?A. A cycling coach.B. A university teacher.C A professional rider. D. A college student.DIn ancient times, Chinese used plant leaves or bird feathers as a fan during the summer time. This was the earliest form of the fan. The first real fan was made back in the era of Yao and Shun period thousands of years ago. Since then,Chinese-made fans have become a vital part of Chinese art and culture. At the beginning, the fan functioned as a tool to generate a current of air in the hot weather. Now electric fans such as ceiling fans and other technological breakthroughs have taken the place.Long ago, fans caught the attention of ancient Chinese artists by chance. Thereafter, a unique fan art gradually took shape in the history of Chinese culture. Fan art usually includes Chinese calligraphy, paintings, or poems on the sectors（扇区）. Special skills are needed to write or paint on them.Due to its history and partly because of its unique shape, Chinese would soon develop the tradition of using fans as ornaments（装饰品）. Fans are made in different sizes and different color1 s to meet the needs of eachrequest. Other Chinese ornaments, such as the Chinese knot, the green jade, and the Spring Festival picture, are often combined in each design.The value of fans depends mainly on the materials used and the level of craftsmanship that is involved during the process. Feather, paper, jade, bamboo and silk have all been used as ideal materials to make fans. Ancient Chinese even made iron fans to serve as deadly weapons（武器）in Chinese martial arts. Fans made by famous craftsmen are often characterized by pretty designs and detailed workmanship, and thus become favorites of collectors. Fans with masterpiece fine art like calligraphy or paintings are even more valuable.12.What is the first paragraph mainly about?A. The origin of fans.B. The materials of fans.C. The popularity of fans.D. The production of fans.13. Why do Chinese use fans as ornaments?A. They are made of valuable materials.B. They reflect the beauty of Chinese culture.C. They convey literature works on the sectors.D. They are often combined with other ornaments.14. Which of the following makes a fan favored by most collectors?A. Its advanced function.B. Its complex character.C. Its artistic handicraft.D. Its various applications.15. What can we infer about the fan from the text?A. Chinese send fans to their friends as gifts.B. Chinese ornaments can meet different requests.C. Traditional fans have lost their functional value.D. The fan plays different roles with the change of time.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
2020年同济大学实验学校高三英语下学期期中考试试题及参考答案
2020年同济大学实验学校高三英语下学期期中考试试题及参考答案第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AContact CCA's Special Programs to learn more about our wide range of credit and noncredit opportunities for academic and personal development.Summer ProgramAn exceptional 4-week program for students currently completing their study of high school.Earn 3 college credits!Our setting is CCA's Oakland campus, where studio-focused, college-level courses help you push beyond concepts to portfolio(作品集)－ready pieces. On-campus Housing & Scholarships available!Summer CoursesCCA offers about 35 for-creditdegree courses each summer, scheduled on theSan FranciscoandOaklandcampuses.Undergraduate and graduate students can work with a visiting artist, develop skills and stay on track for graduation by earning credits...all while still allowing time to visit family, work, travel, etc.For information about summer housing, please contact the Office of Residential Life at 510594722 or housing@ ca. edu.Summer StartSummer Start is a six-week program designed specifically for international undergraduate and graduate students. This is a for-credit program; students receive six credits towards their degree. During the program, you must live on CCA'sSan Franciscocampus.Tuition includes six units of discounted graduate college credit, which will include books, field trip expenses and one-on-one tutoring. Housing fees include six weeks at CCA's San Francisco Panoramic Residence.Company-Customized ProgramsCCA's Office of Special Programs can design customized workshops to develop and strengthen employee skills within your company. Customized programs have included:An Ideation Sketching class, for the design team of a national clothing retailer, scheduled Friday afternoons onSan Franciscocampus.Software-specific workshops, for designers from a national paper products and gifts retailer, scheduled in a two-day workshop format during the week on ourOaklandcampus.1.Who would most potentially apply for Summer Program?A.Employees in companies.B.International undergraduate and graduate students.C.High school graduates.D.Undergraduate and graduate students.2.What can students do if they take Summer Courses?A.Go on a field trip.B.Visit famous artists.C.Make some friends.D.Earn some credits.3.What are students required to do if they take Summer Start?A.Live on one of the campuses.B.Pay school fees in advance.C.Read as many books as possible.plete the courses on time.BWhy do you check social media? Is it to keep up with everything that your friends and family are doing? Is it to find new trendy spots to eat?Regardless of the reason, you may find yourself with different degrees of envy or discomfort after a quick look at your phone. Then you might be suffering from a phenomenon known as “Fear of Missing Out (FOMO). ”While the phenomenon of FOMO can be traced back for centuries, it had never been the issue as it is today, causing widespread discussion and research. This rise in checking social media is naturally connected to the increasing leading position that social media holds over our lives. Every time someone opens their WeChat Moments, Facebook, Twitter... etc. , they are bombarded with the highlight reels of other peoples' lives. A sunny beach, delicious-looking food, a super cute kitten-they are all uplifting photos, yet they're very likely to bring about more unhappiness than joy. You see, the first thought to come out of your mind may be “Wow, that's so cool/delicious/cute”, but then it takes a hard U-turn. You're thinking: “I wish I were there” or “my life is so boring compared to his/hers.” The more you see, the more likely you are to have these negative feelings.What's worse is the habit many people have of turning to social media in search of happiness when they are feeling down, not realizing that they are just going to end up in a negative cycle of endless disappointment. Montesquieu once said: “If one only wished to be happy, this could be easily accomplished; but we wish to be happier than other people, and this is always difficult, for we believe others to be happier than they are.”FOMO will go hand in hand with dissatisfaction and envy. Appreciate what you already have, because someone else out there in the world would gladly give everything to be you.4. What is the purpose of the questions in paragraph 1?A. To introduce the topic of the passage.B. To explain the function of FOMO.C. To describe the features of FOMO.D. To give the reasons for checking social media.5. How might people feel seeing other's perfect life through social media?A. Joyful.B. Admiring.C. Comfortable.D. Envious.6. What can we conclude from Montesquieu's words in paragraph 3?A. We could turn to social media for happiness.B. We couldn't realise our dream without hard work.C. We couldn't harvest happiness through comparison.D. We could live better than others by showing ourselves online.7. What is the author's attitude towards FOMO?A. Indifferent.B. Objective.C. Doubtful.D. Hopeful.CSome years ago a young man applied to a large United States optical firm for a job as a lens designer. He apologized for lack of training, but on announcing that he owned two copies of the classic Conrady's Applied Optics and Optical Design, one for his office and a second for his bedside table, he was hired on the spot. Perhaps the story will be repeated some day with Buchdahl's Introduction to Hamiltonian Optics as a similar certificate of qualification.Hamiltonian theory describes with powerful generality the overall properties of optical systems considered as ‘black boxes’, although it does not describe the detailed structure needed to construct the systems and achieve these properties. Buchdahl's book is therefore on the subject of geometrical optics, but it is not about how to design lenses. It is, however a compact comprehensive account of the fundamentals of the theory written with the lens designer's needs very much in mind. Every lens designer worth his salt has at some time in his career attempted to apply the broad concepts of Hamiltonian optics to the solutions of practical problems. Success hasbeen sufficiently rare that the theory, as such, has made little direct contribution to techniques for optical instrument design. The failures have been frustrating because of the obvious fundamental power of the theory and because of its conceptual elegance. The indirect effects have been large, however, both in contributing to an understanding of fundamental principles that govern the overall behavior of optical systems and in pointing the way to other, more practical, theoretical approaches.Buchdahl approaches the subject not only as a capable mathematical physicist, but as one who with a knowledge of practical optics has made a significant contribution to geometrical optical theory. Buchdahl's approach has, over the last decade, had a major impact on modern lens design with computers. Thus, he brings to this exposition of Hamiltonian optics a familiarity with practical optics not usually found in authors on this subject.The author claims his book to be non-mathematical, and indeed it might be so viewed by a professional mathematician. From the point of view of many physicists and engineers, it will appear to be quite mathematical. Moreover, this is a tightly written book. The subject matter is developed with precision, and the author expects the reader, at very point, to be master of the preceding exposition.8. Hamiltonian theory met with failures as a result of ______.A. newer finding related to the wave particle nature of lightB. very complicated concepts too difficult to understand by most lens designersC. too much mathematical detail in the theoryD. not enough practical information offered by the theory to allow for use by lens crafters9. The author of this passage implies that Introduction to Hamiltonian Optics is necessary to ______.A. the students who are major in mathematical geometryB. those who want to grasp the basic principles of optical systemsC. the lens designers who look for instructions on practical designsD. those who are interested in physics10. The article points out that the great benefits of Hamiltonian optics have been found is ______.A. indirect ways of learning mathematicsB. a fundamental power within the theoryC. the conceptual elegance of the theoryD. the practical applications of the theory in finding new approaches to old problems11. This passage is probably excerpted from ______.A. a review of a bookB. a chemistry textbookC. an optician's essayD. a general science textDElonMusk is a symbol of passion, hard work and success. A person may work hard in his life, but when hard work goes along with passion and a new idea, then something is created that astonishes the world. As the founder of big companies like PayPal, SpaceX, and Tesla Motors, Elon Musk is a guide and inspiration for the youth around the world.Elon Musk was born on June 28,1971 inPretoria,South Africa. He was the eldest of three children. His father Errol Musk, a British-born South African, was an engineer. Musk spent his childhood inSouth Africaand at the age of 9, he got his first personal computer. This got Elon interested in programming and he started to learn on his own. At the age of 12, he made his first computer game, Blaster, which earned him $500 when he sold the source code to a magazine.When he was 17, he decided to leave home and had wanted to move to theUnited Statesafter graduating from a secondary school inPretoria. However, he was unable to move to theUnited States. In 1989, Elon Musk moved toCanada, where his mother’s s lived. After obtaining Canadian citizenship, Musk went toMontreal. Due to a lack of money, he found a low-paying job. At the age of 19, he enteredQueensUniversityinKingston,Ontario, studying there for two years. Finally, in 1992, his dream came true—he moved to theUnited States.As a teenager, Musk struggled with depression. But then he realized that the most important thing was presenting himself with the right questions. The day he started doing this, everything started to get easier.Musk thought that a human being had to expand the limits of his consciousness—to ask the right questions and get answers to them; thus he asked the best question of all: what will have the greatest impact on the future of humans? Musk found that these things were the Internet and space exploration.The life of Elon Musk is inspiring. He found success on the Internet, without much formal learning. By reading books and using his willpower and dedication, he reached a level of knowledge that is difficult to imagine. He did not give up until he achieved his dreams. Elon Musk truly stands out among other billionaires because of his leadership abilities, positive attitude, ability to know when to take risks, and belief in futuristic technologies.12. According to the passage, Elon Musk gained knowledge of computer by ________.A. teaching himselfB. learning from his fatherC. taking online coursesD. studying inQueensUniversity13. What made things easier for Elon Musk when he suffered from depression?A. Expanding knowledge by reading books.B. Asking himself the right questions.C. Achieving success on the Internet.D. Designing computer games.14. What can we learn from the passage?A. It’s never too late to learn.B. Youth means limitless possibilities.C. Where there’s a will, there’s a way.D. He who doesn’t advance falls backward.15. Which words can best describe Elon Musk according to the passage?A. Optimistic and generous.B. Ambitious and determined.C. Independent and helpful.D. Adventurous and realistic.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
同济大学数据库课程考核试卷A卷秋季数据库期中考试英语参考答案
同济⼤学数据库课程考核试卷A卷秋季数据库期中考试英语参考答案同济⼤学课程考核试卷（A卷）2012 —2013 学年第⼀学期课号：10014501 课名：数据库系统原理（双语）考试考查：考试此卷选为：期中考试( )、期终考试( )、重考( ) 试卷年级专业学号姓名得分Ⅰ. Multiple choice (20 marks, 2 marks each)（C ）1. Five basic relational algebra operations are , others can be derived from these operations.A. ?，-，π，σ，?B. ?，-，π，σ，C. ?，-，π，σ，?D. ?，÷，π，σ，（ABD）2. The following aggregation function(s) will neglect null value. A. SUM B. MAXC. COUNTD. A VG（A. ）3. Given R, U={A,B,C}, F={B→C}, a decomposition of R is ρ={AB, BC}, and the decomposition is:A. lossless-join, dependency preservingB. lossless-join, not dependency preservingC. lossy-join, dependency preservingD. lossy-join, not dependency preserving（BD ）4. When we generate relational schemas from an E-R diagram, the rules for relationship sets are:A. for a binary 1: n relationship set, translate it into a relation, and the primary key of the relationship set is the primary key of the “1” side entity set;B. for a binary 1: n relationship set, translate it into a relation, and the primary key of the relationship set is the primary key of the “n” side entity set;C. a binary 1: n relationship set can be united with the “1”side entity set, and translated into one relation;D. a binary 1: n relationship set can be united with the “n”side entity set, and translated into one relation;（ABC）5. If R∈BCNF, then:A. non-attributes are entirely functional dependent on non-key attributes;B. all key attributes are entirely functional dependent on each candidate key that does not contain them;C. all partial dependencies and transitive dependencies are removed for anyattributes;D. all anomalies are removed within any dependency scope.（AD）6. For PRIMARY KEY definition in CREATE TABLE, when a user wants to insert a tuple into the table, the RDBMS will:A. check for the primary key value, and deny the insertion if it is not unique;B. check for all attributes, and deny the insertion if there is one null value;C. check for all candidate key attributes, and deny the insertion if there is one null value;D. check for all primary key attributes, and deny the insertion if there is one null value（B. ）7. Transforming ER diagram into relational data model belongs to the step ofA. Requirement analysisC. Conceptual design（ABD）8. When dealing with null value in SQL statements, the following correct is(are) .A. AGE IS NULLB. AGE IS NOT NULLC. AGE = NULLD. NOT (AGE IS NULL)（C ）9. The global constraints in SQL statements are check clause based on tuples and .A. NOT NULL constraintB. Domain constraintC. AssertionD. Foreign Key clause（ACDE）10. A DBA’s duties are:A. database restoration and recovery;B. transaction processing and concurrency control;C. security and integrity control;D. performance monitoring, analyzing, and tuning;E. database reforming and restructuring.Ⅱ. Analysis (12 marks, 6 marks each)Are the following E/R diagrams good designs? Justify your answer and try to give better designs if they exist. If you feel they work well under some requirements but not under others, give specific examples. To simplify, keys are not underlined in the diagrams.a.Below is an E/R diagram for companies and employees. One constraint forthe E/R diagram below is that each employee can work in only onecompany.Solution:By making “manager” an attribute, the diagram maintains the one-to-one relationship. However, it does not guarantee that the manager is one of the employees.b.Below is an E/R diagram for a company database involving projects,departments, and employees. Each project can be sponsored by severaldepartments and monitored by several employees in the company. Eachdepartment can sponsor several projects. Each employee can monitor severalprojects and may work in several departments. An employee can monitor aproject that is not in his department.Solution:In this case a trade-off needs to be made between binary relationship and ternary relationship. The same information can be modeled more naturally using the E/R diagram as below. It’s not a good idea to blend the concept of “sponsor” and “monitor”together. Also, in the original diagram, we lost the information of which employee works in which company.Solution:Ⅲ. Relational Database Design and Query (50 marks)1.Assume four relations P, Q, R, and S containing the following tuples, respectively.Give out the results of the following expressions. (6 marks, 2 marks for each)P: A B C D Q: B C E R: B C E S: C Da b c d b d e d c a c d a b e f b c f b d e e f b c e f d c a b c e b d c d d e b b d e fa. P ? Qb. P ÷Sc. σ1=5(Q ×S) a.b.c.2. Consider a relation schema R, where U={A,B,C,D,E,G}, and the set of functional dependencies F={AB →C, C →A, BC →D, ACD →B, D →EG , BE →C, CG →BD, CE →AG}. (6 marks, 3 marks for each)a. Compute the attribute closure +F AB )(.b. Find a minimal cover for F.a. +F AB )( = ABCDEG b. A minimal cover for F is:{AB →C, C →A, BC →D, CD →B, D →E, D →G , BE →C, CG →D, CE →G}3. Consider the relation schema R, where U={A,B,C,D}, and F={A →B, C →A, C →D, D →B, B →C}. Suppose that ρ={R 1, R 2, R 3} is a decomposition of R, where R 1={A, B}, R 2={B, C}, and R 3={C, D}. Is the decomposition ρ of lossless? (5 marks) The decomposition ρ of is lossless.4.Given the relational schema R, U={A,B,C,D,E }, F={AC→BD, B→C,C→D, B→E};/doc/16d147d96ad97f192279168884868762cbaebbca.html e Armstrong axioms and related rules to proof the functional dependencyAC→E; (3 marks)b.Find a canonical cover Fc of F, and find all candidate keys, then point out R isin which normal form; (5 marks)c.Decompose R into 3NF, which the decomposition is lossless-join anddependency preserving. (5 marks)Solution：a. 由AC→BD得AC→B（分解规则）；再由B→E，则有AC→E（传递规则）b. 对R中的函数依赖集F进⾏极⼩化处理，得最⼩依赖集Fm={AC→B, B→C, C→D, B→E}，仍记为F；c. 判定R属于第⼏范式：R的候选码有：AC、AB；主属性为A、B、C；由C→D可见，⾮主属性D对码AC为部分函数依赖，故R?2NF, R∈1NF。
2020届同济大学实验学校高三英语期中考试试卷及答案解析
2020届同济大学实验学校高三英语期中考试试卷及答案解析第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项ABob and Sue Harvey spent nine years as resident fellows in a dormitory at Sanford and in their bookVirtual Reality and The College Freshman, they write “The Freshman oftenfaces an identity problem during the first semester.” College is a more pressured environment than it used to be, in part because the academic gap between high school and college has increased. Many college freshmen have never had to make independent decisions about sex, drugs and alcohol. Most don’t know how to manage their time or money. They often feel lonely and overwhelmed, resulting in anxiety and depression.Nancy Corbin, director of clinical service for student-counseling (咨询) services at Iowa State University, says her office is seeing a significant increase in requests for counseling from freshmen who are having trouble making the adjustment to college life. She says older teenagers increasingly lack the skills to deal with personal problems that aren’t easily defined or fixed. And they get homesick but have a hard time admitting it.Parents and high schools can make things easier on freshmen by preparing them differently. For example, by teaching them to budget their hours and dollars. The Harveys think high schools should offer a college-life course. “Parents need to focus more on relationship and personal issues and less on how many sheets and towels to take,” they say. Many homesick freshmen think they’ll be regarded as failures if they come home before Thanksgiving. So parents can help by letting them know they’re welcome to return if they feel the need. In the meantime, parents have to find new ways to keep in touch with their college kids. One of the best ways is e-mail. It’s less unpleasant and less expensive than constant phone calls and is more likely to be answered than a handwritten letter.1. Why is the first semester difficult for freshmen in college?A. Because they often fail in exams.B. Because they lack time and money.C. Because they are too homesick to make new friends.D. Because they have to settle personal issues on their own.2. In the last paragraph, it is suggested that ________.A. parents should stop buying anything for their kidsB. parents should develop a good relationship with their kidsC. parents should be taught how to send e-mails to their kidsD. parents should work with high schools in college-life courses3. Which of the following might be the best title for the passage?A. Hard Life of College FreshmenB. Approaches to Trouble in CollegeC. Freshmen’s Adaptation ProblemsD. A Strange Phenomenon in CollegeBWhat acts of kindness will make us the happiest, and who tends to benefit the most? A newly-published review of decades of kindness research provides some answers.In this paper, researchers analyzed the results from 126 research articles looking at almost 200, 000 participants from around the world. The studies they chose measured well-being in various ways, including both mental and physical health. Some were experiments, where people did a kindness practice to observe its effects, while others just surveyed people about how kind and happy they were.As expected, people who were kind tended to have higher well-being. Lead researcher Bryant Hui wasastoundedthat the relationship wasn't stronger than it was, but he was still encouraged by the results.One thing Hui and his colleagues found was that people who performed random, informal acts of kindness, like bringing a meal to a sad friend, tended to be happier than people who performed more formal acts of kindness, like volunteering in a soup kitchen.The researchers also found that people who were kind tended to be higher in "eudaimonic happiness"(a sense of meaning and purpose in life) more than "hedonic happiness"(a sense of pleasure and comfort). Perhaps this makes sense, given that being kind takes effort, which reduces comfort but could make people feel better about themselves and their abilities, which would provide a sense of meaning.Being kind came with greater eudaimonic happiness for women than for men, too. According to Hui, this could be because, in many cultures, women are expected to be kinder than men; so, they may have more to gain from it. And younger participants experienced more happiness when they were kind than older participants, perhaps for developmental reasons, he says.Hui isn't sure why acting kind might have these different effects on different groups, but he points to theories put forth by researcher Elizabeth Midlarsky: Being kind may make us feel better about ourselves as a person or about the meaning of our lives, help us forget our own troubles and stresses, or help us be more socially-connected with others.4. What does the data in the second paragraph intend to show?A. The recent paper is worthy of being read.B. The recent paper gives convincing results.C. Kindness is always a hot topic of research.D. Kindness is closely linked to one's well-being.5. What does the underlined word "astounded" in paragraph 3 mean?A. Afraid.B. Certain.C. Excited.D. Surprised.6. Which of the following acts of kindness can make one feel happier according to paragraph 4?A. Volunteering in a hospital.B. Cleaning a community.C. Returning a lost item to its owner.D. Collecting donations for the poor.7. What do the researchers find from the paper?A. Being kind has different effects on different groups.B. Eudaimonic happiness makes people feel comfort.C. The younger experienced more happiness than the older.D. Female participants are kinder than male ones.CIf you’re looking for a reason to care about tree loss, this summer’s record-breaking heat waves might be it. Trees can lower summer daytime temperatures by as much as 10 degrees Fahrenheit, according to arecent study. But tree cover in US cities is shrinking (缩减). A study published last year by the US Forest Service found that we lost 36 million trees annually from urban and rural communities over a five-year period. “If we continue on this path, cities will become warmer, more polluted and generally unhealthier for inhabitants,” said David Nowak, a senior US Forest Service scientist and co-author of the study. Nowak says there are many reasons why our tree cover is declining, including hurricanes, tornadoes, fires, insects and disease. But the one reason for tree loss that humans can control is sensible development.Nowak says there is a downside to trees too, such as pollen allergy (花粉过敏) or large tailing branches in storms, and people don’t like sweeping leaves. But, he says, there are ways cities and counties can manage trees to help communities thrive (繁荣). Urban forests especially need our help to replace fallen trees. Unlike rural areas, it is very difficult for trees to repopulate themselves in a city environment with so much pavement and asphalt (沥青). “A lot of our native trees can’t actually find a place to drop a seed so they can regenerate,” explains Greg Levine, co-executivedirector of Trees Atlanta. “That’s why the community has to go in and actually plant a tree because the areas just aren’t natural anymore.”Nowak says the first step is caring for the trees on your own property (财产). “We think we pay for our house,and sowe must maintain it. But because we don’t pay for nature, we don’t need to. And that’s not necessarily true.”8. Why does the author mention “trees can lower summer daytime temperatures”?A. To tell the temperatures in summer are high.B. To explain the reason of tree loss.C. To tell trees are helpful.D. To introduce the topic.9. How can humans control tree loss according to Nowak?A. Develop cities in reasonable ways.B. Prevent fires form damaging trees.C. Improve climate to let trees grow.D. Decrease insects in cities.10. Why do forests in cities need our help?A. Because trees don’t grow in a city environment.B. Because native trees don’t drop seeds any more.C. Because trees in urban areas can’t regenerate naturally.D. Because humans want to plant more trees.11. What is the purpose of this passage?A. Describe the importance of trees in cities.B. Appeal people to protect trees in their surroundings.C. Ask people to plant trees with the author.D. Show the number of trees in theUSis declining.DBefore moving to Stokholm, I did my research on Sweden and was confident about my move. However, I quickly realized on my first day that so much of what I learnedwas so very wrong. There are many things that a Google search cannot show about Sweden.The first is fika. A fika is taking a break from whatever you are doing to enjoy a coffee with friends. Swedes value community highly so it makes sense that they would like to set aside time each day to reconnect with others. Fika is a great time to meet new people as well as catch up with friends.I grew up in the American South where everyone is very friendly. I found that little things like not being askedmy life story at the coffee shop by the waiter upset me. However, Swedish people are not rude. Instead, they practice being logom, which means “just enough”.The winters can be very dark and cold, so the Swedish people do not take any sunny day for granted. Since the weather has been fine, I have found myself walking a lot around Stockholm. Often it is easiest to get from place to place by walking, which allows you to see so much of the city and enjoy the fresh air. Though it has been very tiring to get used to, it also has made me feel better about all of the kardemummabullar that I have been eating!I think it is important for students who want to study abroad to know that it is hard to move to countries no matter how “similar” you may think they may be. You have to jump in with both feet and be patient with yourself as well as others. As long as you keep an open mind and are willing to learn, you will have a great experience.12. What do we know about fika?A. It is a waste of time.B. It is a way to balance life and work.C. It is all about drinking coffee.D. It is a Swedish social tradition.13. What does the author think of Swedish people?A. They are friendly.B. They seem a bit cold.C. They appear really rude.D. They are interested in other's life.14. Why does the author like walking?A. It is fun and not very tiring.B. It is good exercise on cold days.C It allows her to enjoy sunny days. D. It gives her the chance to eat the local food.15. What's the author's advice for students going abroad?A. Be confident.B. Be careful.C. Be open- minded.D. Be hard- working.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
同济大学课程考核试卷及答案( 卷)
同济大学课程考核试卷及答案（A卷）20XX — 20XX 学年第 X 学期课号：19XXXXXX 课名：汽车构造（上）发动机部分考试考查：考查此卷选为：期中考试(√)、期终考试()、重考( )试卷年级专业学号姓名得分一、 判断是非题(10分)1.上、下止点间的距离为活塞行程。
（√ ）2.发动机的转速越高，所发出的有效功率越大。
（ ）3.汽油机燃烧室形状有楔形燃烧室、盆形燃烧室、半球形燃烧室等。
（ ）新鲜空气或可燃混合气被吸进气缸愈多，则发动机可能发出的功率愈大。
（ ）6.氢气是一种清洁燃料，氢气发动机的燃烧产物中没有CO、HC和NOx （）但若冷却过度，会造成气缸充气量减少和热量散失过多。
（）8.如果润滑系中油压过高，则将增加发动机功率损失。
（）当节气门开度一定时，发动机转速增高，应适当增大点火提前角。
（）二、 填空题(10分)1.发动机的动力性指标有:有效转矩 、 有效功率 、 转速 等；2.为了减轻主轴承负荷，改善其工作条件，一般都在曲柄的相反方向设置 。
3. 就是进、排气门的实际开闭时刻。
常用相对于上、下止点曲拐位置的曲轴转角的环形图来表示。
4.废气再循环装置可降低的排放量。
5.发动机各运动零件所要求的润滑强度不同，而采取的润滑方式有和。
6.活塞环包括和两种。
三、 简答题（30分）1．曲柄连杆机构的组成和功用是什么？2．简单论述可燃混合气的成分对发动机性能有什么影响？3．简单分析喷油泵的速度特性和调速器的功用。
4. 汽车排污的来源有哪些？5．发动机冷却系统中节温器的主要作用是什么？简答题：5.节温器是控制冷却液流动路径的阀门。
它根据冷却温度的高低，打开或关闭冷却液通向散热器的通道。
同济大学课程考核试卷(A卷)
同济大学课程考核试卷（A 卷） 2007 — 2008 学年第 二 学期命题教师签名： 审核教师签名：课号： 课名：流体力学 考试考查：考试此卷选为：期中考试( )、期终考试( √ )、重考( )试卷年级 专业 学号 姓名 得分一、单选题（30%）1、以下说法正确的是： （ ） A ：固体摩擦力与接触面的压力有关，而液体的摩擦力则与压力无直接关系。
B ：静止的流体中存在压应力和拉应力。
C ：在恒定均匀流中，沿程水头损失与速度的平方成正比。
D ：尺寸相同的收缩管中，总流的方向改变后，水头损失大小并不改变。
2、圆管层流，实测管轴上的流速为5m/s ，则断面平均流速为： （ ） A ：3m/s B ：2.5m/s C ：10m/s D ：5m/s3、水平放置的渐缩管，若流体流动的方向为1→2，忽略水头损失，断面形心点的 压强，有以下关系： （ ） A ：p 1<p 2 B ：p 1=p 2 C ：p 1>p 2 D ：不能确定4、某输水管道，流速s m v /1.1=，阀门突然关闭引起直接水击，若水击波速z s m c /1100=，其直接水击压强为（ ）A: z MPa 0.1B: z MPa 1.1C: z MPa 21.1 D: z MPa 321.15、影响水的运动粘度的主要因素为 ( ) A ：水的温度； B ：水的容重； C ：当地气压； D ：水的流速。
6、若在同一长直等径管道中用不同液体进行实验，当流速相同时，其沿程水头损失在是相同的。
（ ） A ：层流区 B ：紊流光滑管区 C ：紊流过度区 D ：紊流粗糙管区7、恒定流中运动要素必为零的是( )A ：当地加速度B ：迁移加速度C ：合加速度D ：速度 8、在平衡液体中，质量力与等压面 （ ）A ．重合。
B ．平行。
C ．斜交。
D ．正交。
9、圆柱形外伸管嘴的正常工作条件是： （ ）A ：;9,)4~3(m H d ≥=B ：;9,)4~3(m H d ≤=C ：;9,)4~3(m H d ≥>D ：;9,)4~3(m H d ≤<10、渗流模型与实际渗流相比较： （ ） A ：流量相同； B ：流速相同； C ：各点压强不同； D ：渗流阻力不同。
同济大学课程考核试卷A卷试题及答案
同济⼤学课程考核试卷A卷试题及答案同济⼤学课程考核试卷（A卷）答案2013 — 2014 学年第⼆学期命题教师签名：审核教师签名：课号：课名：建筑混凝⼟结构设计考试（√）考查（）此卷选为：期中考试( )、期终考试(√)、重考( )试卷，开卷（）、闭卷（√）年级专业学号姓名得分⼀、填空题（共15题，每题1分，共15分）：1．常见的楼盖结构型式有：肋梁楼盖、井式楼盖、⽆梁楼盖、密肋楼盖和扁梁楼盖（3个即可）等2．楼盖结构的板⼀般不进⾏抗剪承载⼒验算，这是因为（⼤意）楼盖结构的板⼀般属于薄板，⽽根据弹性薄板理论和钢筋混凝⼟板试验结果，楼盖结构的板破坏⼀般由受弯控制，受剪破坏不起控制作⽤。
3．按弹性理论计算⽆梁楼盖的内⼒（弯矩）的⽅法有：弯矩系数法或等代框架法（填⼀个⽅法的名称即可）。
计算⽆粘结预应⼒混凝⼟楼盖的内⼒（弯矩）的⽅法有等效荷载法（填⼀个⽅法的名称即可）。
4．铺板式装配式楼盖设计中，如果预制板铺排后还剩有空隙，可采⽤采⽤调缝板、扩⼤板缝、跳砖、局部现浇（填写2个即可）措施加以处理5．⼤型屋⾯板与屋架上弦有三点焊接时，可以认为屋⾯板起到了上弦⽔平⽀撑的作⽤。
6．当⼭墙抗风柱与屋架下弦连接时，应设置下弦横向⽔平⽀撑。
7．在起重量和⼩车⾃重相同的条件下，软钩吊车的横向⽔平制动⼒⽐硬钩吊车的⼩。
8．钢筋混凝⼟屋架的主要形式有三铰拱屋架、折线形屋架、梯形屋架等。
9．在地震设防区建造钢筋混凝⼟多层框架结构房屋，应采⽤纵横向框架混合承重⽅案。
10、当框架的层数不多或⾼宽⽐不⼤时，框架结构的整体变形主要呈现为剪切型，框架结构的总体弯曲变形主要是由柱的轴向变形引起的。
11．关于框架结构的反弯点，上层梁的线刚度增加会导致本层柱反弯点下移。
12．确定框架竖向可变荷载的最不利位置时，可采⽤满布荷载法的条件是当活荷载产⽣的内⼒远⼩于恒荷载及⽔平⼒所产⽣的内⼒时。
13．剪⼒墙墙肢的斜截⾯破坏可归纳为三种破坏形态，即斜拉破坏、斜压破坏、剪切破坏。
2019-2020学年同济大学实验学校高三英语期中考试试卷及答案
2019-2020学年同济大学实验学校高三英语期中考试试卷及答案第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项ANational Disability Insurance Scheme (方案)The National Disability Insurance Scheme (NDIS) will transform the way Queenslanders with disability are supported and change the way disability services are funded and delivered.Under the scheme, Queenslanders with disability will have choice and control over how they access support and who delivers them. They will also have certainty that they will be supported throughout their lifetime to achieve their personal goals.The NDIS will have an effect on the following programs.School Transport Assistance Program for Students with DisabilityThe NDIS will not disrupt existing services for qualified students. The Queensland Government will also continue to provide school transport assistance for students with disability who are not qualified to receive funding via the NDIS.For more information about the School Transport Assistance Program, and to check your qualification, visit the Education and Training website.Taxi Subsidy (补助金) SchemeThe Queensland Governmenthas lengthened the Taxi Subsidy Scheme (TSS) membership for NDIS qualified members to 31 October, 2022. This will allow more time to solve transport support arrangements under the Commonwealth’s NDIS.You can find more information about the TSS and your qualification on the TransLink website.Disability Parking Permit SchemeNo changes will be made to the Disability parking permit scheme when the NDIS is introduced inQueensland. Current arrangements for this scheme will be maintained.You can find more information on this scheme, and check your qualification, on the Queensland Government website.Public Transport Concessions for People with DisabilityThere will be no change to concessions on public transport for people with disability when the NDIS isintroduced inQueensland. TransLink will continue to ensure concessions are provided for disabled persons travelling on public transport inQueenslandwhen the NDIS is introduced.You can find more information about public transport discounts for people with disability, and check your qualification, on the TransLink website,1.Which program helps drive the disabled to and from school?A.Taxi Subsidy Scheme.B.Disability Parking Permit Scheme.C.Public Transport Concessions for People with Disability.D.School Transport Assistance Program for Students with Disability.2.What can we learn about Taxi Subsidy Scheme?A.The scheme is for parking permit.B.The existing membership can be effective for longer time.C.There is no change to current arrangements for the scheme.D.The NDIS will not break off existing services for qualified students.3.What do the four programs have in common?A.They are all related to transport.B.They are all largely affected by NDIS.C.They all can be checked on the same website.D.They all provide discounts for disabled persons.BYu Chenrui, 29, is a maker of automata (机关人偶) in Chengdu, Sichuan province. Automata are built to look like humans or animals and give the illusion (错觉) of being able to move ontheir own, “The art form amazes me, because it combines various skills, from storytelling to mechanics, and the pieces are built with a sense of humor,” Yu says. His creations have caught the attention of well-known artists and his fancy pieces of art have attracted collectors worldwide.Interested in handcrafts as a boy, Yu first encountered automata designed by Japanese artist Kazuaki at an exhibition in 2015 when he studied at the Communication University of China in Beijing. “It was like meeting a like-minded friend, ” Yu says, recalling the moment. As an art and design major, he began to learn the craft by himself and, with the support of his tutor, he kept studying and examining automata in school.When he graduated in 2016, Yu landed a job at an advertising agency in Beijing. He stayed on at the companyfor three years because, at that time, he was not sure that he could make a living out of his hobby. While working as a designer Yu kept exploring and advancing his skills in wood carving and mechanics. Eventually, despite the job’s good salary, it was not enough to make up for not following his true passion. Finally, in 2018, Yu quit his job and returned to Chengdu to open his automata workshop.To keep himself occupied while running his workshop, he planted blueberries, raspberries and cherries. He watered, weeded and added fertilizer (肥料) every day. “Daily routines helped me calm down and inspire my creativity, which resulted in an automaton called To Observe the Autumn,” Yu says.Over time, Yu’s reputation grew and his business flourished (兴旺). Many of Yu’s creations are built with a dash of wisdom, a sprinkle of humor and are inspired by observations of real life. Yu knows that there are many more creative ideas waiting to be expressed. “It feels quite good to be fully devoted to automata creation and I am still searching for myself.”4. What can we learn from the first paragraph?A. Yu is equipped with various skills.B. Yu is a person full of sense of humor.C Yu is now gaining recognition worldwide.D. Yu is following the latest trend in handcraft.5. Why did Yu quit his job in Beijing?A. He couldn't make a living out of it.B. He wanted to pursue his own dream.C. He missed his family in Chengdu.D. He thought he had a lot experience.6. According to Yu, what contributes to his creativity as an automata artist?A. The fruits he grows.B. Success of his business.C. His devotion to the job.D. Observation from daily life.7. Which of the following can best describe Yu’s story?A. There is no end to learning.B. Great hopes make great man.C. Actions speak louder than words.D. Experience is the mother of wisdom.CCraig Blackburn, a father and car fan, built a Batmobile for his son’s hope for using the vehicle to brighten the lives of sick children. And now he hopes to use it for more than just his sons hope after seeing the childrensreaction to the Batmobile.Based on the number of failures he had seen in car groups, he estimated that only about one in 50 attempted constructions was actually finished and he realized what an incredible opportunity he had.Mr. Blackburn started the project at the beginning of 2018 after hearing a friend in the US was doing the same thing. It started with importing an outer shell overseas, before picking brains of a friend who had a background as a worker in a car factory to gain knowledge of how to build the car. With the help of his friend, Mr. Blackburn built the Batmobile in 18 months with the cost reaching six figures.Mr.Blackburn hoped to add a flamethrower(喷火器)onto the back of the vehicle and said he had thought about building the more recent Batman Tumbler from the series film Dark Knight. Though Mr. Blackburn encountered plenty of difficulties to get over during the construction, in September 2019, the carmade its first show at the Carnival of Flowers in Toowoomba, before being used by Blackburn’s son for his hope.“It was great. It was so good to see the kids’ and adults’ excitement at seeing the Batmobile.” Mr. Blackburn said. As a result, the car lovers hope to make the car work on the roads as soon as possible, so he can visit sick children and take them out with his son.8. What is Craig Blackburn’s initial purpose of making the Batmobile?A. To realize his son’s dream.B. To donate it to sick children.C. To pay his respects to the film Dark Knight.D. To show off at the Carnival of Flowers in Toowoomba.9. How did Blackburn feel about the car-making at first?A. Hopeful.B. Confused.C. Impossible.D. Unsure.10. How did Blackburn’s friend help him?A. By making an outer shell for him.B. By offering him financial support.C. By sharing the knowledge of building cars.D. By telling him the background of the car factory.11. What is the car lovers’ expectation of the Batmobile?A. It will be driven soon on the roads.B. It can be displayed around the world.C. It can change the lives of sick children.D. It will appear in the next film about Batman.DCuckoos don’t bother building their own nests—they just lay eggs that perfectly imitate those of other birds and take over their nests. But other birds are wishing up, evolving some seriously impressive tricks to spot the cuckoo eggs.Cuckoos are often know asparasites, meaning that they hide their eggs in the nest of other species. To avoid detection, the cuckoos have evolved so that eggs seem reproduction of those of their preferred targets. If the host bird doesn’t notice the strange egg in its nest, the little cuckoo will actually take the entire nest for itself after it comes out, taking the other eggs on its back and dropping them out of the nest.To avoid this unpleasant fate for their young, the other birds have evolved a few smart ways to spot the fakes, which we’re only now beginning to fully understand. One of the most amazing finds is that birds have an extra colour-sensitive cell in their eyes, which makes them far more sensitive to ultraviolet wavelengths and allows them to see a far greater range of colours than humans can. This allows cautious birds to detect a fake egg which might be exactly the same to our eyes.Fascinatingly, we’re actually able to observe different bird species at very different points in their evolutionary war with the cuckoos. For instance, some cuckoos lay their eggs in the nests of the redstarts. The blue eggs these cuckoos lay are practically alike to those of the redstarts, and yet they are still sometimes rejected. Compare that with cuckoos who target dunnocks. While those birds lay perfectly blue eggs, their cuckoo invaders just lay white eggs with brown irregular shaped spots. And yet dunnocks barely ever seem to notice the obvious trick.Biologists suspect these more easily fooled species like the dunnocks are on the same evolutionary path as the redstarts, but they have a long way to go until they evolve the same levels of suspicion. What’s remarkable is that the dunnocks fakes are so bad and the redstart ones so good, and yet cuckoos are still more successful with the former than the latter.It speaks to just how thoroughly a species’ behavior can be changed by the pressures of natural selection, or it might just be a bit of strategic cooperation on the part of the dunnocks. Biologists have suggested that these birds are willing to tolerate a parasite every so often because they don’t want to risk accidentally getting rid of one of their own eggs.12. This passage can be most likely found in a ________.A. science surveyB. nature magazineC. zoo advertisementD. travel journal13. What does the underlined word “parasite” in paragraph 2 most probably refer to?A. Animals that work together to raise young.B. Small harmful animals such as worms or mice.C. Animals that can adapt to changing environments.D. Animals which live on or inside other host animals.14. Which of the following is TRUE about the dunnock according to the passage?A. It is colour-blind and therefore cannot identify foreign eggs in the nest.B. It can easily remove cuckoo eggs from the nest because fakes are so bad.C. It is a host bird that is more likely to raise a cuckoo chick than the redstart.D. It is unable to evolve and hence accepts cuckoo eggs that appear in the nest.15. Which of the following can be inferred from the passage?A. Dunnocks may eventually learn to recognise foreign eggs.B. Redstarts seem to be less suspicious compared to dunnocks.C. Cuckoo birds are good at taking responsibility for their own young.D. It is very easy for cuckoos to imitate the colouring of the dunnock’s egg.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
期中英语试题及参考答案
期中英语试题及参考答案一、听力理解（共20分）1. 根据所听对话，选择正确答案。
A. He is a teacher.B. He is a student.C. He is a doctor.D. He is a lawyer.[答案] A2. 根据所听短文，回答问题。
What is the main idea of the passage?A. The importance of education.B. The benefits of exercise.C. The advantages of technology.D. The impact of culture.[答案] B二、阅读理解（共30分）A. 阅读下列短文，选择最佳答案。
Passage 1...51. What does the author mainly discuss in the passage?A. The history of the Internet.B. The influence of the Internet.C. The future of the Internet.D. The development of the Internet.[答案] BB. 阅读下列短文，判断正误。
Passage 2...52. The article was written before 2010.A. TrueB. False[答案] B三、完形填空（共20分）Read the following passage and fill in the blanks with the appropriate words.It was a cold winter evening. The snow was falling heavily outside. A young man was walking home from work. He wasfeeling very tired and he was looking forward to getting home. Suddenly, he saw an old lady sitting on the sidewalk,shivering in the cold. The young man decided to help her. He took off his coat and put it on the old lady.53. A. happilyB. sadlyC. angrilyD. nervously[答案] B54. A. BecauseB. AlthoughC. SinceD. Unless[答案] B四、语法填空（共10分）Fill in the blanks with the correct form of the words givenin the brackets.It is said that the famous musician will give a performance in our city next month. (61) _______ (he) concert will be held in the city stadium.[答案] His五、翻译（共10分）Translate the following sentences into English.62. 他不仅是一位杰出的科学家，还是一位伟大的教育家。
2020年同济大学实验学校高三英语下学期期中考试试题及答案解析
2020年同济大学实验学校高三英语下学期期中考试试题及答案解析第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AArtificial intelligence (Al) is practically everywhere today. There are so many products out there which use Al. Some are being developed, some are already in use, and some failed and are being improved, so it’s very difficult to name a few of them and regard them as the best.ViIt is an Al personal trainer which is mainly concerned with fitness and coaching. It, however, requires the use of bio-sensing earphones and other fitness tracking equipment! It can play your favourite music while you work out and all you have to worry about is the exercise you're doing.Deep TextDo you ever wonder how an ad appears suddenly just when you are looking for something similar? This is because of Deep Text. It uses real-time consumer information to produce data which in turn is used to target consumers. Thus, if you search online for flight tickets fromBangaloretoDelhi, it is very likely that an ad relating to hotels inDelhiwill soon follow.Hello EggIf you live alone and miss your mother because you always miss your breakfast or don’t know what to eat for dinner, then Hello Egg is exactly what you are looking for. A very healthy choice of the 2-minute noodles and oats, Hello Egg provides you with a detailed weekly meal plan about the needs of your body. It is truly a modern AI-powered home cooking tool for the young.WordsmithYou can put Mr. Smith into your Microsoft Excel using their free API, and let it write up detailed analysis of the stories behind your numbers. It can produce detailed reports on thousands of pages of spreadsheets in seconds.1. What can we learn about Vi from the text?A. It is an AI music player.B. It is a bio-sensing earphone.C. It doesn't work without bio-sensing earphones.D. It can make you more energetic while you work out.2. Which can help you improve cooking skill?A. Deep Text.B. Vi.C. Wordsmith.D. Hello Egg.3. What can Wordsmith do for us?A. Produce a detailed report.B. Provide us with a detailed meal plan.C. Book a ticket ahead of time.D. Offer us information on hotels for traveling.BCuckoos don’t bother building their own nests—they just lay eggs that perfectly imitate those of other birds and take over their nests. But other birds are wishing up, evolving some seriously impressive tricks to spot the cuckoo eggs.Cuckoos are often know asparasites, meaning that they hide their eggs in the nest of other species. To avoid detection, the cuckoos have evolved so that eggs seem reproduction of those of their preferred targets. If the host bird doesn’t notice the strange egg in its nest, the little cuckoo will actually take the entire nest for itself after it comes out, taking the other eggs on its back and dropping them out of the nest.To avoid this unpleasant fate for their young, the other birds have evolved a few smart ways to spot the fakes, which we’re only now beginning to fully understand. One of the most amazing finds is that birds have an extra colour-sensitive cell in their eyes, which makes them far more sensitive to ultraviolet wavelengths and allows them to see a far greater range of colours than humans can. This allows cautious birds to detect a fake egg which might be exactly the same to our eyes.Fascinatingly, we’re actually able to observe different bird species at very different points in their evolutionary war with the cuckoos. For instance, some cuckoos lay their eggs in the nests of the redstarts. The blue eggs these cuckoos lay are practically alike to those of the redstarts, and yet they are still sometimes rejected. Compare that with cuckoos who target dunnocks. While those birds lay perfectly blue eggs, their cuckoo invaders just lay white eggs with brown irregular shaped spots. And yet dunnocks barely ever seem to notice the obvious trick.Biologists suspect these more easily fooled species like the dunnocks are on the same evolutionary path as the redstarts, but they have a long way to go until they evolve the same levels of suspicion. What’s remarkable is that the dunnocks fakes are so bad and the redstart ones so good, and yet cuckoos are still more successful withthe former than the latter.It speaks to just how thoroughly a species’ behavior can be changed by the pressures of natural selection, or it might just be a bit of strategic cooperation on the part of the dunnocks. Biologists have suggested that these birds are willing to tolerate a parasite every so often because they don’t want to risk accidentally getting rid of one of their own eggs.4. This passage can be most likely found in a ________.A. science surveyB. nature magazineC. zoo advertisementD. travel journal5. What does the underlined word “parasite” in paragraph 2 most probably refer to?A. Animals that work together to raise young.B. Small harmful animals such as worms or mice.C. Animals that can adapt to changing environments.D. Animals which live on or inside other host animals.6. Which of the following is TRUE about the dunnock according to the passage?A. It is colour-blind and therefore cannot identify foreign eggs in the nest.B. It can easily remove cuckoo eggs from the nest because fakes are so bad.C. It is a host bird that is more likely to raise a cuckoo chick than the redstart.D. It is unable to evolve and hence accepts cuckoo eggs that appear in the nest.7. Which of the following can be inferred from the passage?A. Dunnocks may eventually learn to recognise foreign eggs.B. Redstarts seem to be less suspicious compared to dunnocks.C. Cuckoo birds are good at taking responsibility for their own young.D. It is very easy for cuckoos to imitate the colouring of the dunnock’s egg.CA Singaporean company will feed airport food waste to mealworms before turning them into fish feed, aiming to cut the country's use of imported feed and offer a continuous alternative.Blue Aqua Internationalwill partner with Dnata, an air and travel services provider, to change organic waste at Singapore's Changi Airport into insect protein for aquacultural use, according to a statement Tuesday.The project looks to replace traditional fish and soybean meal as the main sources of protein for aquafeed. The insects will eat the food waste and change it into part of the body containing about 60 per cent protein. Thedried baby worms will then be made into feed.These mealworms can be a continuous solution to several problems. Using a small land and giving out less carbon, they turn food waste into feed and offer an alternative source of protein. Ynsect SAS, a small French business that keeps mealworms to feed fish and pets, attracted money from investors includingIron Manmovie actor Robert Downey Jr. in a round of fund-raising last year.The deal will give Singapore's farmers access to domestically produced animal feed, which is traditionally bought from abroad. The Southeast Asian nation imports more than 90 percent of its food and has set a goal to produce a third of its food locally by 2030. It also aims to achieve a general recycling rate of 70 per cent by then. Presently, less than 20 per cent of Singapore's food waste is recycled.As part of the partnership, Dubai-based Dnata will add Blue Aqua to its list of suppliers to buy locally farmed seafood for its catering service.8. What is the function of mealworms?A. To cut the use of imported fish feed.B. To eat food waste and make fish feed.C. To domestically produce animal feed.D. To replace traditional fish and soybean meal.9. What does Paragraph 4 mainly talk about?A. The producers of the feed.B. The purpose of the projectC. The advantages of the project.D. The composition of the feed.10. What can we infer about Singapore from Paragraph 5?A. It is a rich country.B. It is short of self-produced food.C. Its recycling rate is very high now.D. Its farmers don't support the deal.11. What is the text mainly about?A. A new way to produce fish feed.B.An introduction to a company.C. A plan to reduce food waste.D. A deal to protect farmers.DFor years video games have been criticised for making people more antisocial, overweight or depressed. Bui now researchers are finding that video games can actually change us for the better and improve both our body and mind.Games can help to develop physical skills. Pre-school children who played interactive games have been shown to have improved motor skills, for example they can kick, catch and throw a ball better than children who don’t play video games. A study found that those who played video games were 27 percent faster and made 37percent fewer errors than those who didn't.Games also benefit a variety of brain functions, including decision-making. People who play action-based games make decisions 25 percent faster than others, according to one study. It was also found that the best gamers can make choices and act on them up to six times a second, four times faster than most people. In another study by researchers from the University of Rochester in New York, experienced gamers were shown to be able to pay attention to more than six things at once without getting confused, compared with the four that most people can normally keep in mind.There is also evidence that gaming can help with psychological problems. At the University of Auckland in New Zealand, researchers asked 94 young people diagnosed with depression to play a 3D fantasy game called SPARX and in many cases, the game reduced symptoms of depression more than conventional treatment.12. In what way playing video games benefits very young children?A. Muscle control.B. Social interaction.C. Decision-making.D. The ability to focus.13. Which type of video game improves the decision-making speed?A. Interactive games.B. Action-based games.C. 3D fantasy games.D. Violent games.14. What is the authors attitude to video games?A. Indifferent.B. Objective.C. Worried.D. Critical.15. What is the text mainly about?A. The effects of different types of video games.B. The negative effects of playing video games.C. The beneficial effects of playing video games.D. The effects of games on people's behavior.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
2020-2021学年同济大学实验学校高三英语下学期期中考试试卷及答案解析
2020-2021学年同济大学实验学校高三英语下学期期中考试试卷及答案解析第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AWashingtonD.C.SightseeingWith the information below, you’re not missing anything in D.C.! Click Here to find the perfect hotel for your stay as well.TheOldTownTrolley TourIt offers something for the whole family. Not only will it give them something fun to do, but it will give them a history lesson. This tour will last about three hours and it’s proper for people of all ages.African American History TourBe sure to take this tour because African Americans have had an important role in the making of our country. Take this historical four-hour tour, where you will visit some important sites includingMuseumofAfrican American Historyand Culture.Comedy WalksWashingtonD.C.This is a great experience allowing you to enjoy the capital in a new way. The walking tour lasts for about one hour and thirty minutes, which takes place in less than a mile journey from the starting place.D.C. Twilight TourCheck out the D.C. Twilight Tour for a unique view of some of the most famous sites! What makes this two-hour guided tour truly unique is that you can view many wonderful sites at night time!1. Which tour is recommended to a tourist who is fond of hiking?A. TheOldTownTrolley TourB. African American History TourC. Comedy WalksWashingtonD.C. D. D.C. Twilight Tour2. Which tour lasts longest?A. TheOldTownTrolley TourB. African American History TourC. Comedy WalksWashingtonD.C. D. D.C. Twilight Tour3. Where will you read this text most likely?A. In a guidebook.B. In a magazine.C. In a newspaper.D. On the Internet.BPeople from Britain and Ireland first came to live in Australia in 1788. They brought different dialects (方言) of English with them. These different kinds of English began to mix and change. The newcomers soon began to speak with their own typical accent (口音) and vocabulary. More and more people came to Australia during the Gold Rush in the 19th and 20th centuries. Some came from Britain and Ireland; others came from non-English speaking countries. Australian English continued to grow and change.Australian English has also been influenced by American English. During the Second World War, there were many American soldiers staying in Australia. More importantly, American television shows and music have been popular in Australia since the 1950s.Australians use many words that other English speakers do not use. The famous Australian greeting, for example, is G’day! A native forest is called the bush and central Australia is called the outback. Many words were brought to Australia from Britain and Ireland. For example, mate means “friend”, and it is still used in Britain. Some of these words have changed in meaning. Some words have come from Australian original languages, many of which are names for animals, plants and places, like dingo and kangaroo.Australian spelling comes from British spelling. In words like organise and realise, -ise is the expected and taught spelling method. In words like colour, favourite, -ouris the normal, but nouns such as the Labor Party and Victor Harbor are spelled with -or. Program, on the other hand, is more common than programme.There are also differences in the definition (定义) of words Australians use in different parts of the country. For example, football means “rugby” in New South Wales and Queensland, but “Australian rules football" in everywhere else in Australia. In New South Wales, a swimming costume is called a cossie or swimmers, while in Queensland it is called togs and bathers in Victoria.4. What does paragraph 1 mainly talk about?A. Reasons why English is important.B. Different dialects of Australian English.C. Various aspects that Australian English has been influenced.D. Changes of the accent and vocabulary in English.5. According to the text, which of the following is spoken only by Australians?A. Mate.B. Outback.C. Program.D. Rugby.6. Which is the following can best describe Australian English?A. Confusing and interesting.B. Multicultural and creative.C. Crazy and boring.D. Unchangeable and mixed.7. What might be the best title for the text?A. The History of AustraliaB. The Birth of Australian EnglishC. The Development of Australian EnglishD Different Kinds of English Across the WorldCIf you ever get the impression that your dog can "tell" whether you look delighted or annoyed, you may be onto something. Dogs may indeed be able to distinguish between happy and angry human faces, according to a new studyResearchers trained a group of 11 dogs to distinguish between images(图像)of the same person making either a happy or an angry face. During the training stage, each dog was shown only the upper half or the lower half of the person's face. The researchers then tested the dogs' ability to distinguish between human facial expressions by showing them the other half of the person's face on images totally different from the ones used in training. The researchers found that the dogs were able to pick the angry or happy face by touching a picture of it with their noses more often than one would expect by random chance.The study showed the animals had figured out how to apply what they learned about human faces during training to new faces in the testing stage. "We can rule out that the dogs simply distinguish between the pictures based on a simple cue, such as the sight of teeth," said study author Corsin Muller. "Instead, our results suggest that the successful dogs realized that a smiling mouth means the same thing as smiling eyes, and the same rule applies to an angry mouth having the same meaning as angry eyes.""With our study, we think we can now confidently conclude that at least some dogs can distinguish human facial expressions," Muller toldLive Science.At this point, it is not clear why dogs seem to be equipped with the ability to recognize different facial expressions in humans. "To us, the most likely explanation appears to be that the basis lies in their living with humans, which gives them a lot of exposure to human facial expressions and this exposure has provided them with many chances to learn to distinguish between them." Muller said.8. The new study focused on whether dogs can_________.A. distinguish shapesB. make sense of human facesC. feel happy or angryD. communicate with each other9. What can we learn about the study from paragraph 2?A. Researchers tested the dogs in random order.B. Diverse methods were adopted during training.C. Pictures used in the two stages were differentD. The dogs were photographed before the lest.10. What is the last paragraph mainly about?A. A suggestion for future studies.B. A possible reason for the study findings.C. A major limitation of the studyD. An explanation of the research method.11. In which section is the text most likely to be found in a newspaper ?A. EntertainmentB. EconomyC. ScienceD. NatureDElonMusk is a symbol of passion, hard work and success. A person may work hard in his life, but when hard work goes along with passion and a new idea, then something is created that astonishes the world. As the founder of big companies like PayPal, SpaceX, and Tesla Motors, Elon Musk is a guide and inspiration for the youth around the world.Elon Musk was born on June 28,1971 inPretoria,South Africa. He was the eldest of three children. His father Errol Musk, a British-born South African, was an engineer. Musk spent his childhood inSouth Africaand at the age of 9, he got his first personal computer. This got Elon interested in programming and he started to learn on his own. At the age of 12, he made his first computer game, Blaster, which earned him $500 when he sold the source code to a magazine.When he was 17, he decided to leave home and had wanted to move to theUnited Statesafter graduating from a secondary school inPretoria. However, he was unable to move to theUnited States. In 1989, Elon Musk moved toCanada, where his mother’s s lived. After obtaining Canadian citizenship, Musk went toMontreal. Due to a lack of money, he found a low-paying job. At the age of 19, he enteredQueensUniversityinKingston,Ontario,studying there for two years. Finally, in 1992, his dream came true—he moved to theUnited States.As a teenager, Musk struggled with depression. But then he realized that the most important thing was presenting himself with the right questions. The day he started doing this, everything started to get easier.Musk thought that a human being had to expand the limits of his consciousness—to ask the right questions and get answers to them; thus he asked the best question of all: what will have the greatest impact on the future of humans? Musk found that these things were the Internet and space exploration.The life of Elon Musk is inspiring. He found success on the Internet, without much formal learning. By reading books and using his willpower and dedication, he reached a level of knowledge that is difficult to imagine. He did not give up until he achieved his dreams. Elon Musk truly stands out among other billionaires because of his leadership abilities, positive attitude, ability to know when to take risks, and belief in futuristic technologies.12. According to the passage, Elon Musk gained knowledge of computer by ________.A. teaching himselfB. learning from his fatherC. taking online coursesD. studying inQueensUniversity13. What made things easier for Elon Musk when he suffered from depression?A. Expanding knowledge by reading books.B. Asking himself the right questions.C. Achieving success on the Internet.D. Designing computer games.14. What can we learn from the passage?A. It’s never too late to learn.B. Youth means limitless possibilities.C. Where there’s a will, there’s a way.D. He who doesn’t advance falls backward.15. Which words can best describe Elon Musk according to the passage?A. Optimistic and generous.B. Ambitious and determined.C. Independent and helpful.D. Adventurous and realistic.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
同济大学课程考核试卷A卷
同济大学课程考核试卷（A卷）
2010 —2011 学年第1 学期
命题教师签名：审核教师签名：
课号：课名：数学建模考试考查：考查此卷选为：期中考试( )、期终考试(√)、重考( )试卷
（注意：本试卷共 4 大题， 2大张，满分100分．考试时间为100分钟。
要求写出解题过程，否则不予计分）
一、(25分)用长8m的角钢切割钢窗用料。
每副钢窗含长1.5m的料2根，1.45m的料2根，1.3m的3根，0.35m
的12根。
若需要钢窗用料100副，问最少需切割8m长的角钢多少根？为该问题建立优化模型, 并写出LINGO 或者LINDO程序。
二、(25分)某塑料厂生产6中规格的塑料容器，每种容器的容量、需求量及每一件的生产费用如下表所示。
每种
容器分别用不同设备生产，固定开工费用均为1200元。
当某种容器数量上不能满足要求时，可用容量较大
三、(25分)一个小型港口提供货船卸货服务，每次只能为一艘货船卸货。
前后两艘货船到达港口的时间间隔在区
间[15,135]分钟中变化。
大小货船的卸货时间不一，短至45分钟，长可达90分钟。
给出一个模拟的方法，估算一艘货船到来时可能排队多长时间，以及可能货船排多长的队。
四、(25分)如何有效评价上海世博会的影响? 若考虑用层次分析法评价，请你写出应层次分析法分析该影响的目
标层、因素层、方案层，以及求解的主要步骤。
2020-2021学年同济大学实验学校高三英语下学期期中考试试卷及答案解析
2020-2021学年同济大学实验学校高三英语下学期期中考试试卷及答案解析第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AIt’s the time of year when we start hiking. As you pack, remember to bring your smartphone. Whether you’re going on a short walk or a long trip, there are a handful of apps that can help.MapMyHikeThis app tracks where you're hiking so you have a mapof your route at the end of the hike. It can also track other fitness information like the distance traveled, speed, pace, and even calories burned. You can save the data for your hike, so you can always access the route you look as well as track improvements to your workout. GaiaGPSYou don't always have cellphone service when hiking, but you always want to know where you are. The GaiaGPS app provides that information. Download maps of different parts of the world, and access the GaiaGPS app in the middle of even the most remote trails. The GPS function makes using the maps simple, and the app will also point to areas of interest.Backpacking ChecklistOne of the worst things is being way out on a trail only to discover you left behind something important. That's why checklists are the best. This checklist app helps you build a customized(定制的) list of things to take with you. Organize different lists based on trail lengths or requirements. Track all your essential items by weight and where you can find them.WildObsUsing WildObs, you can record your observations of plants and animals and add them to the database. You can ask the community to help you identify something and keep track of everything you've met, and most importantly, you can become a citizen scientist. By recording what you've seen with this app, you're helping scientists keep track of what's happening to the natural world.1. What can you do with MapMyHike?A. Record your walking speed.B. Design a suitable hiking route.C. Locate popular tourist attractions.D. Store the data of your daily activities.2. What is WildObs intended to do?A. To provide survival skills.B. To lead the way.C. To identify wildlife.D. To help make preparations.3. Which app is most useful before hiking?A. GaiaGPS.B. MapMyHike.C. WildObs.D. Backpacking Checklist.BVolunteer DayWhat better way is there to enjoy your own hobbies while helping others at the same time? Come to Volunteer Day and choose which activity you’d like to join for the day. See below for a schedule of events on Volunteer Day.Volunteer Day schedule:7:30am.: Meet at the Community (社区) Center for juice and bagels.8:00—8:30 a.m.: Choose which activity you’d like to help with for the day.8:30 a.m.: Board the bus to your activity site.9:00 a.m.—3:30 p.m.: Work as a volunteer.3:30 p.m.: Board the bus that will take you back to the Community Center.See below for a list of volunteer opportunities for Volunteer Day so you can begin thinking about which activity you might want to join.A list of volunteer activities:Paint houses: Do you enjoy making art? If so, this volunteer opportunity might be just right for you! Happy Homes is a local organization that provides home repairs for needy people in the form of painting. For elderly or physically disabled people who cannot do repairs to their homes, Happy Homes provides volunteer painters to repaint old homes; outside or in. Happy Homes also provides painters to create beautiful wall paintings inside schools or community centers.Plant flowers: Do you enjoy being outside in nature? City Parks Association has many great opportunities for people who love to be outdoors. Help plant flowers and bushes in city parks; help lay paths at Cave Springs Park, or help pick up rubbish around the river banks. These activities are very active, so remember to be prepared with plenty of drinking water!Read to children: Do you enjoy working with young children? Do you like books? Love and Learning is anorganization that provides volunteers to help children with learning disabilities. Read books out loud to groups of children four to six years old, or read one-on-one with struggling readers seven to eight years old.Play with animals: Do you love animals? Lovely Friends is an organization that visits local animal shelters and provides volunteers to spend time with the animals while their cages are being cleaned. Play with puppies, snuggle with cats, or hand-feed rabbits.4. At what time do volunteers leave for their activity sites?A. 7:30 a.m..B. 8:00 a.m.C. 8:30 a.m.D. 9:00 a.m.5. An outdoor lover probably takes part in ______.A. Plant flowersB. Paint housesC. Read to childrenD. Play with animals6. What do Lovely Friends volunteers do?A. Read books to children.B. Spend time with animals.C. Help plant bushes in parks.D. Pick up garbage along the river.7. The purpose of the passage is to _________.A. educate childrenB. attract volunteersC. comfort the elderlyD. encourage the disabledC“We are running out of space and the only places to go to are other worlds... Spreading out may be the only thing that saves us from ourselves. I am convinced that humans need to leave Earth.” These are the words of the famous scientist Stephen Hawking, spoken at a science festival inNorwayin 2017, a year before his death.Hawking was not alone in this view. Many experts feel that the only way for humanity to last far into the future is to colonize other planets. That way, if an asteroid, a terrible disease, nuclear war, or some other disaster strikes Earth, civilization as we know it would still have a chance. Mars is one of the most tempting destinations. NASA, theUnited Arab Emirates, the private company SpaceX, and the organization Mars One all have plans to send humans there. “Either we spread Earth to other planets, or we risk going extinct, SpaceX founder Elon Musk said at a conference in 2013.But not everyone agrees that colonizing Mars or any other planet is such a great plan. The most common argument against going is that it’s just too expensive or dangerous. It will take huge amounts of money and other resources just to get people there, let alone set up a place for them to live. It’s not even clear if humans couldsurvive on Mars. One of the biggest dangers there is deadly radiation that bombards the planet.Maybe all the time and money people would pour into a Mars mission would be better spent on more urgent projects here on Earth, like dealing with poverty or climate change. Some experts argue that handling a problem like an asteroid strike or disease outbreak while staying here on Earth would be much easier and less expensive than surviving on a new planet.In addition, moving to a new planet could harm or destroy anything that already lives there. Mars seems uninhabited, but it could possibly host microbial life. Human visitors may destroy this life or permanently change or damage the Martian environment. Some feel that’s too much of a risk to take.What do you think? Should humans colonize outer space or stay home?8. What can be inferred from the passage?A. Many experts insist that humans should take the risk.B. Mars is the most attractive destinations for human beings.C. Hawking firmly believes the only way to save humans is moving to Mars.D. All the other experts don’t agree with Hawking’s idea.9. Why do some experts disagree with the plan to colonize Mars?A. It will cost much more money to settle on Mars than on Earth.B. It is too long a distance from the Earth to the Mars.C. Human visitors will bring diseases to Martian environment.D. The deadly radiation that bombards the planet is the biggest danger.10. What’s the writing purpose of the passage?A. To raise people’s awareness of protecting the environment.B. To present different opinions on whether to move to the Mars.C. To arouse readers’ reflection on whether to colonize outer space.D. To inspire people to deal with the environmental problems.11. In which section of a magazine is the passage most likely from?A. Fiction.B. Current affairs.C. Social Studies.D. Science.DHundreds of children are being treated for sleep problems in Wales every year. In some cases，babies，infants (婴儿)and teenagers have been admitted to hospital in north Wales alone.The Children’s Sleep Charity said many children were suffering from lack of sleep mainly because oftechnology use. Public Health Wales said sleep was as important to a child’s health as healthy eating and exercise，and children with poor sleep patterns were more likely to be fat.Statistics obtained (获得) under the Freedom of Information Act by BBC Wales found at least 408 children have been admitted to hospitals across Wales suffering from sleep disorders since March 2013.Children aged between 0 and 4 made up the highest number of inpatients (住院病人)，with some newborns being treated for sleep-related problems from the day of birth.Vicki Dawson，who set up the Children’s Sleep Charity (CSC)，said sleepless nights were putting both children and parents in anxiety. “Their weight and growth may also be affected as well as their mental health，”she said.Teachers said children showing signs of sleep shortage and tiredness in class were a concern as they couldn’t concentrate for long periods.Psychologist Amy McClelland，of Sleep Wales，saida common problem was that children were “over excited”before bed and that families should get back to basics. “Think 1950s family home. Dinner as a family，read，chat，a film maybe，lights off and then bed. ”She added.12. What’s the mainreason why children are short of sleep？A. Less exercise.B. Eating habits.C. Technology use.D. Sleep patterns.13. Who are the majority of the inpatients with sleep-related disorders？A. Infants.B. Teenagers.C. Teachers.D. Parents.14. What can we infer from what Amy McClelland said？A. Chatting and films make children sleep more.B. It is difficult for children to read before bed.C. Being too excitedis good for sleep habits.D. Relaxation has a bad effect on children.15. What is the best title forthe text？A. Ways to Treat Sleep ProblemsB. Sleep Problems of Welsh ChildrenC. Sleep Habits of Welsh ChildrenD. The Problems of Welsh Children第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
2019-2020学年同济大学实验学校高三英语上学期期中考试试题及参考答案
2019-2020学年同济大学实验学校高三英语上学期期中考试试题及参考答案第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AIf your Spanish is good enough, many Spanish gossip magazines being published around the world will provide entertainment and, at the same time, help you practice your language.Diez Minutos: The magazine is a classic Spanish gossip feast with dailynews based on many stories of love, separation, divorce and death. The two main parts are headlined "love" and "partners". They also have an online version of the magazine for serious gossip addicts.Hola: It isSpain's top weekly magazine and the leader of the gossip world. It contains many pictures and a round-up of well-known and less well-known nobles and people in show business. Apart from edited highlights from the present and past issues, there is a report of the week and photo of the week. There is also a French version called OhLa!Revista CUORE: As the third best-selling gossip magazine inSpain, it is mainly aimed at younger teenage readers who look not only for current celebrity gossip, but also for fashion and TV news. It uses a lot of oral terms.Revista SEMANA: It is a Spanish magazine covering the latest news on the famous inSpainandHollywood. It also offers its readers information on fashion, beauty, cooking and travel.Marujeo: It is a blog serving up a daily diet of national gossip news on Spanish and international celebrities and the celebrity world from a particular point of view.Revista CARAS: It is a magazine published in various countries ofLatin America. It is also exported to certain parts of theUnited States, bringing together strange and wonderful news from around the world and the famous Latin community.1.Which magazine is also published in French?A.MarujeoB.Revista SEMANA.C.Revista CARAS.D.Hola.2.How many of the magazines mentioned in the text can be read on the Internet?A.Four.B.Three.C.Two.D.One.3.What can be learned from the passage?A.Diez Minutos presents its readers weekly picturesB.Revista CUORE can help improve one's spoken Spanish.C.Revista SEMANA is intended for readers in teensD.Revista CARAS mainly reports news fromLatin America.BIn May this year, as part of our 150th anniversary, we asked readers aged between18 and 25 to enter an essay competition. The task was to tell us, in no more than 1,000 words, what scientific advance they would most like to see in their lifetimes, and why it mattered to them.The response was phenomenal: we received 661 entries. Some entrants hoped that science would make their lifetimes much longer than they can currently expect. Many looked forward to work that will end climate change. Others wanted to see advances in our understanding of human history, crop growth, space exploration, and medical technologies. The ideas were inspiring.The winner is a compelling essay by Yasmin Ali, a PhD student at the University of Nottingham, UK. Ali submitted a piece on Beethoven, her brother’s hearing loss and the science which she hoped would one day cure it. It stood out to the judges as a reminder of why many scientists do research: to make the world better tomorrow than it is today.All essays were judged by a group of Nature editors. The top ten submissions were then ranked by three members of a separate judging group: Magdalena Skipper, editor-in-chief of Nature; Faith Osier, a researcher; and Jess Wade, a physicist. All submissions were kept anonymous throughout the process.We also selected two runners-up(非冠军的获奖者).Physicist Robert Schittkoat Harvard University in Cambridge, Massachusetts, proposes that nuclear fusion(核聚变) could offer a solution to the climate crisis, in a piece that effortlessly mixes grand ambition with gentle humour. And chemist Matthew Zajac at the University of Chicagoin Illinois wrote a powerful personal account of why he wants to see advances in the field of same-sex reproduction.The results show that today’s young scientists have a wealth of ideas, talent and conviction that research can transform their world. We look forward to seeing what they do next.4. What’s the essay competition about?A. The scientific expectation.B. The fantastic scientific ideas.C. The dreams of future life.D. The celebration of anniversary.5. Why Yasmin Ali was chosen the winner?A. She showed great talent in music.B. She found the cure for the loss of hearing.C. She appealed for people to care about hearing loss problem.D. She reminded people to remember the meaning of science development.6. What can we learn about the result of the essay competition?A. Robert Schittko won the second place.B. There were two winners in the essay competition.C. Matthew Zajac presented his view of same-sex reproduction.D. The two runners-up were selected for the same field they chose.7. What isthe author’s attitude to the competitors’ ideas about science expectations?A. Doubtful.B. Favorable.C. Impossible.D. Ignorant.CIn ancient times, Chinese used plant leaves or bird feathers as a fan during the summer time. This was the earliest form of the fan. The first real fan was made back in the era of Yao and Shun period thousands of years ago. Since then,Chinese-made fans have become a vital part of Chinese art and culture. At the beginning, the fan functioned as a tool to generate a current of air in the hot weather. Now electric fans such as ceiling fans and other technological breakthroughs have taken the place.Long ago, fans caught the attention of ancient Chinese artists by chance. Thereafter, a unique fan art gradually took shape in the history of Chinese culture. Fan art usually includes Chinese calligraphy, paintings, or poems on the sectors（扇区）. Special skills are needed to write or paint on them.Due to its history and partly because of its unique shape, Chinese would soon develop the tradition of using fans as ornaments（装饰品）. Fans are made in different sizes and different color1 s to meet the needs of each request. Other Chinese ornaments, such as the Chinese knot, the green jade, and the Spring Festival picture, are often combined in each design.The value of fans depends mainly on the materials used and the level of craftsmanship that is involved duringthe process. Feather, paper, jade, bamboo and silk have all been used as ideal materials to make fans. Ancient Chinese even made iron fans to serve as deadly weapons（武器）in Chinese martial arts. Fans made by famous craftsmen are often characterized by pretty designs and detailed workmanship, and thus become favorites of collectors. Fans with masterpiece fine art like calligraphy or paintings are even more valuable.8.What is the first paragraph mainly about?A. The origin of fans.B. The materials of fans.C. The popularity of fans.D. The production of fans.9. Why do Chinese use fans as ornaments?A. They are made of valuable materials.B. They reflect the beauty of Chinese culture.C. They convey literature works on the sectors.D. They are often combined with other ornaments.10. Which of the following makes a fan favored by most collectors?A. Its advanced function.B. Its complex character.C. Its artistic handicraft.D. Its various applications.11. What can we infer about the fan from the text?A. Chinese send fans to their friends as gifts.B. Chinese ornaments can meet different requests.C. Traditional fans have lost their functional value.D. The fan plays different roles with the change of time.DI’ve been putting my passport to good use lately. I use it asa coaster and to level unsteady table legs. It makes an excellent cat toy.Welcome to the pandemic (疫情) of disappointments. Canceled trips or ones never planned in case they would be canceled. Family reunions, study-abroad years, lazy beach vacations. Poof. Gone. Ruined by a tiny virus, the list of countries where our passports are not welcome is long.It is not natural for us to be this sedentary (定居的). Travel is in our genes. For most of the time our species has existed, we've lived as nomadic (游牧的) hunter-gatherers. But what if we can't move? What's a traveler to do? There are ways to answer that question. "Despair," though, is not one of them.We are an adaptive species. We can tolerate brief periods of forced sedentariness. We pass the days glancingthrough old travel journals and Instagram posts. We gaze at souvenirs. All this helps. For a while. Then, what hope do we have?I think hope lies in the very nature of travel. Travel involves wishful thinking. It demands a leap of faith, and of imagination, to board a plane for some faraway, land. Travel is one of the few activities we engage in not knowing the outcome and are drunk in that uncertainty. Nothing is more forgettable than the trip that goes exactly as planned.That's one reason why I have faith in travel's future. In fact, I'd argue travel is an essential activity. It's not essential the way hospitals and grocery stores are essential. Travel is essential the way books and hugs are essential. Food for the soul. Right now, we're between courses, enjoying where we've been, expecting where we'll go. Maybe it'sZanzibarand maybe it's the campground down the road that you've always wanted to visit.12. From the first paragraph we learn that the author is _______ .A. desperateB. humorousC. boredD. worried13. From the author's perspective, what's the point of travel?A. To feel hopeful.B. To make a wish.C. To take adventures.D. To broaden horizons.14. How is the passage mainly developed?A. By showing evidences.B. By providing examples.C. By making comparisons.D. By interpreting opinions.15. What does the passage mainly talk about?A. Where to go for a trip.B. Why people need to travel.C. How to fight the pandemic.D. What people should do at home.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
2020-2021学年同济大学实验学校高三英语期中试题及答案解析
2020-2021学年同济大学实验学校高三英语期中试题及答案解析第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AFour remarkable inventionsFor more than half a century, the Consumer Electronics Show(CES) has been the place for companies and inventors to display their newest and coolest gadgets.Here are our picks for some of the most interesting and creative inventions.The Sweet Little Rolling RobotSamsung has released Ballie, a tennis-sized robot that can follow you around the house, answer your questions, and entertain your pets. Since it's equipped with a camera, it can keep an eye on your home while you're away. It's like a smart assistant that goes wherever you do, rolling into your bedroom to ring your wake-up alarm, rolling to the kitchen to turn on the toaster and giving you the weather report as you brush your teeth.The Insoles to Pick Up Your PactAny runner knows the right shoes are key to your speed. But Nurvv insoles promise more than mere cushioning. The insoles transmit data to a coaching app, which offers information on your technique and performance. It measures your foot strike and assesses your injury risk. The app then generates personalized workouts to set targets and help you beat your best speeds. Half marathon, here you come!The No-Studio-Needed Yoga ClassCan't keep up your commitment to a yoga studio membership? The Yoganotch personal yoga assistant lets you drop into a virtual class any time you want. Follow along with a set series while 3-D sensors tell you whether you need to straighten your legs a bit more. The idea it that it improves your form while reducing the risk of injury.The Dau-Enhanced GrillWhile working by sight, smell and feel, a chef may appreciate Weber's new Smart Grilling Hub. It can monitor your pork and turkey while an app gives advice about cooking technique and safe temperatures.1. What can the Sweet Little Rolling Robot do?A. Feed your pets.B. Hay tennis with you.C. Take you wherever you want.D. Assist you to do your housework.2. Which of the following is suitable for a runner?A. Ballie.B. Nurvv.C. Yoganotch.D. Smart Grilling Hub.3. What do we know about the Weber’s invention?A. It uses virtual reality.B. It is convenient for cooking.C. It makes meals for you automatically.D. It helps you do well in your yoga exercises.B36-year-old Juan Dual likes to joke that he’s empty inside. Juan’s story began when he was only 13. It was then that he was diagnosed with a terrible disease, which left him with a 99.8% chance of developing cancer of the digestive system. At age 19, right after finishing high-school, Juan underwent a tough operation to take away his colon and rectum. Sadly, it was only the beginning. By age 28, Juan’s disease had affected his stomach and gallbladder so he had to go under the knife again.Having just recovered from several serious surgeries, Juan Dual decided to accept the invitation of some friends of his parents and travel to Japan. It was there that things started to change for the better. He didn’t speak a word of Japanese, so he spent most of his time walking his dog. One day, the dog pulled harder, and Juan realized that he was still able to jog, and he started to do just that.Months later, he found himself working in a small, peaceful town in England. There was little in terms of entertainment, but the town was surrounded by hills, so he devoted even more of his time to running. He befriended some like-minded folks and told them what he’d been through, and they seemed amazed at the fact that he was still alive, let alone that he was pushing himself to exercise. That’s when the idea of focusing on motivating others took root in his mind.With the help of Pepa, a nutritionist, Juan Dual slowly relearned how to eat to keep his energy level high enough to sustain him during physical activity. Eight months after his last operation, he finished the Barcelona half marathon in two hours. He then started training for mountain running and ultra-marathons.4. Why does Juan Dual say he is empty inside?A. Because he has no desire for anything.B. Because he doesn’t have much knowledge.C. Because he always suffers from great hunger.D. Because many of his organs have been removed.5. What made Juan Dual aware that he could still run?A. His parents’ support.B. A walk with his dog.C. The idea of challenging himself.D. His quick recovery from surgeries.6. When did Juan Dual decide to inspire others with his story?A. After finishing the Barcelona half marathon.B After being introduced to a nutritionist named Pepa.C. After sharing it with his friends in an English town.D. After making friends with people with similar sufferings.7. Which of the following words can best describe Juan Dual?A. Ambitious and intelligent.B. Inspiring and responsible.C. Unfortunate but determined.D. Confident but stubborn.CAs an eco-minimalist, Su Yige has maintained an environmentally friendly and sustainable lifestyle for the past three years while studying in Canada. She takes her own bag when she goes grocery shopping and uses second-hand items as often as possible. She avoids almost all paper-related products unless she has to use a public toilet while away from home.Diligence and thrift are time-honored traditional Chinese virtues. Su's family is a good example of this, according to the native of Weihai, Shandong province. Although they have little formal “green” knowledge, her parents lead a very environmentally friendly life.For example, the family has used the same hair dryer for more than a decade, and Su remembers many of her mother's clothes from as far back as kindergarten. “As long as something can still be used, my mother will not replace it with a new item,” she said.“I frequently asked my father to bring the plastic bag back home after dumping our waste in the trash bin. He was unhappy, and argued that instead of making that request, I should go downstairs to dump the waste myself” she said. In another move, her father criticized her for doing too much shopping online. Eventually, they both made steps toward becoming better environmentalists. Her father brings the bag back for reuse and she has only bought two pieces of clothing online in the past six months.Back in Canada, Su is looking forward to finding a job related to sustainable development in China after she graduates as a computer science major in the summer.8. Which of the following best describes Su Yige?A. Conservative.B. Nostalgic.C. Economical.D. Productive.9. What can be found about Su's mother according to the third paragraph?A. She has a lot of formal green knowledge.B. She regards using the same items as a lifestyle.C. She always wears old clothes due to lack of money.D. She will not replace the old items until they are out of style.10. What can be inferred about Su and her father?A. Both of them like to criticize each other.B. Su's father is particular about her clothes.C. The relationship between them is very tense.D. They urge each other to become more environmentally friendly.11. What can we learn about the author soon after she graduates in Canada?A. She will stay there to look for a job.B. She will put effort into computer science.C. She will devote herself to her motherland's future.D. She will come back to China to stay with her parents.DIf you go into the forest with friends, stay with them. If you don’t, you may get lost. If you get lost, this is what you should do. Sit down and stay where you are. Don’t try to find your friends—let them findyou. You can help them find you by staying in one place. There is another way to help your friends or other people to find you. You can shout or whistle three times. Stop. Then shout or whistle three times again. Any signal given three times is a call for help.Keep up shouting or whistling. Always three times together. When people hear you, they will know that you are not just making a noise for fun. They will let you know that they have heard your signal. They will give you two shouts or two whistles. When a signal is given twice, it is an answer to a call for help.If you don’t think that you will get help before night comes, try to make a little house with branches(树枝). Make yourself a bed with leaves and grass.When you need some water, you have to leave your little branch house to look for it. Don’t just walk away. Pick off small branches and drop them as you walk in order to go back again easily. When you are lost, the most important thing to do is to stay in one place.12. If you get lost in the forest, you should _________.A. try to find your friends in no timeB. stay in one place and give signalsC. walk around the forestD. shout as loudly as possible13. Which signal is a call for help?A. Crying twice.B. Shouting here and there.C. Whistling everywhere in the forest.D. Shouting or whistling three times together.14. When you hear two shouts or two whistles, you know that _________.A. someone needs your helpB. something terrible will happenC. people will come to help youD. someone is afraid of an animal15. What’s the meaning of the last paragraph?A. Use branches to make a bed.B. Drop branches to look for water.C. Pick off branches to build another house.D. Leave branches to help you find your way back.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
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同济大学课程考核试卷（A卷）2012 —2013 学年第一学期课号：10014501 课名：数据库系统原理（双语）考试考查：考试此卷选为：期中考试( )、期终考试( )、重考( ) 试卷年级专业学号姓名得分Ⅰ. Multiple choice (20 marks, 2 marks each)（C ）1. Five basic relational algebra operations are , others can be derived from these operations.A. ⋂，-，π，σ，⨯B. ⋃，-，π，σ，C. ⋃，-，π，σ，⨯D. ⋂，÷，π，σ，（ABD）2. The following aggregation function(s) will neglect null value. A. SUM B. MAXC. COUNTD. A VG（A. ）3. Given R<U, F>, U={A,B,C}, F={B→C}, a decomposition of R is ρ={AB, BC}, and the decomposition is:A. lossless-join, dependency preservingB. lossless-join, not dependency preservingC. lossy-join, dependency preservingD. lossy-join, not dependency preserving（BD ）4. When we generate relational schemas from an E-R diagram, the rules for relationship sets are:A. for a binary 1: n relationship set, translate it into a relation, and the primary key of the relationship set is the primary key of the “1” side entity set;B. for a binary 1: n relationship set, translate it into a relation, and the primary key of the relationship set is the primary key of the “n” side entity set;C. a binary 1: n relationship set can be united with the “1”side entity set, and translated into one relation;D. a binary 1: n relationship set can be united with the “n”side entity set, and translated into one relation;（ABC）5. If R∈BCNF, then:A. non-attributes are entirely functional dependent on non-key attributes;B. all key attributes are entirely functional dependent on each candidate key that does not contain them;C. all partial dependencies and transitive dependencies are removed for anyattributes;D. all anomalies are removed within any dependency scope.（AD）6. For PRIMARY KEY definition in CREATE TABLE, when a user wants to insert a tuple into the table, the RDBMS will:A. check for the primary key value, and deny the insertion if it is not unique;B. check for all attributes, and deny the insertion if there is one null value;C. check for all candidate key attributes, and deny the insertion if there is one null value;D. check for all primary key attributes, and deny the insertion if there is one null value（B. ）7. Transforming ER diagram into relational data model belongs to the step ofA. Requirement analysisC. Conceptual design（ABD）8. When dealing with null value in SQL statements, the following correct is(are) .A. AGE IS NULLB. AGE IS NOT NULLC. AGE = NULLD. NOT (AGE IS NULL)（C ）9. The global constraints in SQL statements are check clause based on tuples and .A. NOT NULL constraintB. Domain constraintC. AssertionD. Foreign Key clause（ACDE）10. A DBA’s duties are:A. database restoration and recovery;B. transaction processing and concurrency control;C. security and integrity control;D. performance monitoring, analyzing, and tuning;E. database reforming and restructuring.Ⅱ. Analysis (12 marks, 6 marks each)Are the following E/R diagrams good designs? Justify your answer and try to give better designs if they exist. If you feel they work well under some requirements but not under others, give specific examples. To simplify, keys are not underlined in the diagrams.a.Below is an E/R diagram for companies and employees. One constraint forthe E/R diagram below is that each employee can work in only onecompany.Solution:By making “manager” an attribute, the diagram maintains the one-to-one relationship. However, it does not guarantee that the manager is one of the employees.b.Below is an E/R diagram for a company database involving projects,departments, and employees. Each project can be sponsored by severaldepartments and monitored by several employees in the company. Eachdepartment can sponsor several projects. Each employee can monitor severalprojects and may work in several departments. An employee can monitor aproject that is not in his department.Solution:In this case a trade-off needs to be made between binary relationship and ternary relationship. The same information can be modeled more naturally using the E/R diagram as below. It’s not a good idea to blend the concept of “sponsor” and “monitor” together. Also, in the original diagram, we lost the information of which employee works in which company.Solution:Ⅲ. Relational Database Design and Query (50 marks)1.Assume four relations P, Q, R, and S containing the following tuples, respectively.Give out the results of the following expressions. (6 marks, 2 marks for each)P: A B C D Q: B C E R: B C E S: C Da b c d b d e d c a c d a b e f b c f b d e e f b c e f d c a b c e b d c d d e b b d e fa. P ♦ Qb. P ÷Sc. σ1=5(Q ×S) a.b.c.2. Consider a relation schema R<U, F>, where U={A,B,C,D,E,G}, and the set of functional dependencies F={AB →C, C →A, BC →D, ACD →B, D →EG , BE →C, CG →BD, CE →AG}. (6 marks, 3 marks for each)a. Compute the attribute closure +F AB )(.b. Find a minimal cover for F.a. +F AB )( = ABCDEG b. A minimal cover for F is:{AB →C, C →A, BC →D, CD →B, D →E, D →G , BE →C, CG →D, CE →G}3. Consider the relation schema R<U, F>, where U={A,B,C,D}, and F={A →B, C →A, C →D, D →B, B →C}. Suppose that ρ={R 1, R 2, R 3} is a decomposition of R, where R 1={A, B}, R 2={B, C}, and R 3={C, D}. Is the decomposition ρ of <U, F> lossless? (5 marks)The decomposition ρ of <U, F> is lossless.4.Given the relational schema R<U, F>, U={A,B,C,D,E }, F={AC→BD, B→C,C→D, B→E};e Armstrong axioms and related rules to proof the functional dependencyAC→E; (3 marks)b.Find a canonical cover Fc of F, and find all candidate keys, then point out R isin which normal form; (5 marks)c.Decompose R into 3NF, which the decomposition is lossless-join anddependency preserving. (5 marks)Solution：a. 由AC→BD得AC→B（分解规则）；再由B→E，则有AC→E（传递规则）b. 对R<U, F>中的函数依赖集F进行极小化处理，得最小依赖集Fm={AC→B, B→C, C→D, B→E}，仍记为F；c. 判定R属于第几范式：R的候选码有：AC、AB；主属性为A、B、C；由C→D可见，非主属性D对码AC为部分函数依赖，故R∉2NF, R∈1NF。