江西省临川一中暨临川一中实验学校2020-2021学年高二上学期期中考试英语试题(图片版)
江西省临川一中暨临川一中实验学校2020-2021学年高二上学期期中考试英语试题(可编辑PDF版)
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临川一中暨临川一中实验学校2020—2021学年上学期期中考试高二英语试卷命题人:审题人:第I卷(选择题满分100分)第一部分听力(共两节,满分30分)第一节(共5小题;每个题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1.How does the man probably feel?A.Regretful.B.Nervous.C.Happy.2.Where does the conversation probably take place?A.At home.B.In a hospital.C.In a restaurant.3.How much do two shirts cost?A.$40.B.$50.C.$60.4.Why does the woman want to sell her car?A.To pay her school fees.B.To protect the environment.C.To practice riding a bike well.5.What can we know about Jennifer?A.She likes talking.B.She lives hard.C.She is honest.第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白。
每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项。
听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟。
听第6段材料,回答第6、7题。
6.What does the woman advise the man to do?A.Go skiing with her.B.Visit Zhangjiakou together.C.Celebrate the Spring Festival.7.What are the speakers mainly talking about?A.A working schedule.B.A trip.C.A festival.听第7段材料,回答第8、9题。
2021届江西省临川第一中学暨临川一中实验学校高考模拟押题预测卷英语试题
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2021临川一中暨临川一中实验学校模拟押题预测卷英语2021.5注意事项:1.本试卷由四个部分组成。
其中第一、二部分和第三部分的第一节为选择题。
第三部分的第二节和第四部分为非选择题。
共150分,共12页。
2.全部答案在答题卡上相应区域内完成,在本试卷上作答无效。
选择题请使用2B铅笔填涂,非选择题请使用0.5毫米黑色签字笔作答。
要求字体工整、笔迹清晰。
3.请在答题卡规定的地方填写好个人信息,并认真核对答题卡上所粘贴的条形码是否与本人的信息一致。
4.考试结束后,将本试卷和答题卡一并交回。
第一部分听力(共两节,满分30分)做题时,请先将答案标在试卷上。
录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项。
听完每段对话后,你将有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. What will the speakers do this weekend?A. Visit a zoo.B. See a movie.C. Go horse-riding.2. Why didn't the man go to the wedding?A. He was busy.B. He had the flu.C. He got food poisoning.3. What does the woman think of her old roommate?A. Selfish.B. Thoughtful.C. Careful.4. What does the woman think the city should do?A. Create more jobs.B. Improve the air quality.C. Close some businesses.5. What are the speakers mainly talking about?A. A store.B. Their dormitory.C. The weather.第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白。
江西省抚州市临川区第一中学2020┄2021学年高二上学期期中考试英语试题
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第I卷(选择题满分100分)第一部分听力(共两节,满分30分)第一节(共5小题;每小题1.5分,满分7.5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. What does the man want to do?A. Take photos.B. Buy a camera.C. Help the woman.2. What are the speakers talking about?A. A noisy night.B. Their life in town.C. A place of living.3. Where is the man now?A. On his way.B. In a restaurant.C. At home.4. What will Celia do?A. Find a player.B. Watch a game.C. Play basketball.5. What day is it when the conversation takes place?A. Saturday.B. Sunday.C. Monday.第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或对白,每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置,听每段对话或独白前,你将有时间阅读各个小题。
每小题5秒钟;听完后,各小题给出5秒钟的作答时间。
每段对话或独白读两遍。
听第6段材料,回答第6、7题。
6. What is Sara going to do?A. Buy John a gift.B. Give John a surprise.C. Invite John to France.7. What does the man think of Sara's plan?A. Funny.B. Exciting.C. Strange.听第7段材料,回答第8、9题。
学校2020-2021学年高二上学期期中考试英语试题
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新学道临川学校2020~2021学年度第一学期期中考试高二年级英语试卷2020.11.21(试卷满分150分,考试时间120分钟)第一部分听力(共两节,满分30分)第一节(共5小题;每小题1. 5分,满分7. 5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. Where does the conversation take place?A. At the ticket office.B. On the phone.C. At the woman’s home.2. What does the man want to do?A. Chat with a nurse.B. Lose some weight.C. Set up a program.3. How old is Jack?A. 38.B. 43.C. 48.4. What can we learn from the conversation?A. Mr. Jones is busy now.B. The man mistook Mr. Williams for Mr. Jones.C. Mr. Williams takes over Mr. Jones’ work.5. What book are the speakers talking about?A. A book about funny pictures.B. A book about interesting stories.C. A book about buildings in the world.第二节(共15小题;每小题1. 5分,满分22. 5分)听下面5段对话或独白。
每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项。
听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间。
2020-2021学年江西省临川第一中学高三英语期中试卷及答案
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2020-2021学年江西省临川第一中学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ARome can be pricey for travelers, which is why many choose to stay in a hostel (旅社). The hostels in Rome offer a bed in a dorm room for around $25 anight, and for that, you’ll often get to stay in a central location (位置) with security and comfort.Yellow HostelIf I had to make just one recommendation for where to stay in Rome, it would be Yellow Hostel. It’s one of the best-rated hostels in the city, and for good reason. It’s affordable, and it’s got a fun atmosphere without being too noisy. As an added bonus, it’s close to the main train station.Hostel Alessandro PalaceIf you love social hostels, this is the best hostel for you in Rome. Hostel Alessandro Palace is fun. Staff members hold plenty of bar events for guests like free shots, bar crawls and karaoke. There’s also an area on the rooftop for hanging out with other travelers during the summer.Youth Station HostelIf you’re looking for cleanliness and a modern hostel, look no further than Youth Station. It offers beautiful furnishings and beds. There are plenty of other benefits, too; it doesn’t charge city tax; it has both air conditioning and a heater for the rooms; it also has free Wi-Fi in every room.Hotel and Hostel Des ArtistesHotel and Hostel Des Artistes is located just a 10-minute walk from the central city station and it’s close to all of the city’s main attractions. The staff is friendly and helpful, providing you with a map of the city when you arrive, and offering advice if you require some. However, you need to pay 2 euros a day for Wi-Fi.1.What is probably the major concern of travelers who choose to stay in a hostel?fort.B.Security.C.Price.D.Location.2.Which hotel best suits people who enjoy an active social life?A.Yellow Hostel.B.Hostel Alessandro Palace.C.Youth Station Hostel.D.Hotel and Hostel Des Artistes.3.What is the disadvantage of Hotel and Hostel Des Artistes?A.It gets noisy at night.B.Its staff is too talkative.C.It charges for Wi-Fi.D.It’s inconveniently located.BConcrete is the world's most consumed material after water. Because it already surrounds us in the built environment, researchers have been exploring the idea of using concrete to store electricity—turning buildings into giant batteries. The idea has been gaining ground as we have come to increasingly rely on renewable energy from the wind and sun: rechargeable batteries are necessary when the breeze dies down or darkness falls.Experimental concrete batteries have only managed to hold a small part of what a traditional battery does. But one team now reports in Buildings that it has developed a rechargeable original model that could represent a more than 900 percent increase in stored charge, compared with earlier attempts.A live-in concrete battery might sound unlikely. Still, "you can make a battery out of a potato," notes Aimee Byrne. In a future where sustainability is key, she likes the idea of buildings that avoid waste by providing shelter and powering electronics.Although the new design stores more than 10 times as much power as earlier attempts, it still has a long way to go: 200 square meters of it "can provide about 8 percent of the daily electricity consumption" of a typical U.S. home, Zhang says.This is not enough to compete with today's rechargeable devices. "We're getting milliamps (毫安) out of concrete batteries—we're not getting amps (安培), "Byrne says." We're getting hours as opposed to days of charge." But she adds that" concrete batteries are completely in their childhood, compared to other battery designs." The earliest batteries were simple andbulky. Researchers experimented with new materials and designs for more than a century to develop today's small devices. Byrne suggests concrete-based energy storage could undergo a similar evolution. "The whole idea is that we're looking far into the future," she says. "We're playing the long game with it."4. What can we learn about the concrete batteries?A. They become increasingly renewable.B. They are the most consumed batteries.C. They are being developed by researchers.D. They will replace energy from the wind and sun.5. Why does Byrne mention a battery out of a potato?A. To show it is easy to build concrete batteries.B. To argue it is possible to develop concrete batteries.C. To make her statement more interesting.D. To call on people to protect the environment.6. What does the underlined word "bulky" in Paragraph 5 mean?A. HeavyB. CheapC. EfficientD. Small.7. What doesByrne think of concrete batteries?A. They beat today's rechargeable devices.B. They are simple and bulky.C. They have a doubtful future.D. They have a long way to go.CRecycling plastic has always been a stop-start effort, and the wide variety of plastics we produce, the pollution from waste, and other limitations make recycling an economic(经济) problem. It’s estimated(估计)only 9% of plastic ever created has been recycled. But with the help of a chemical process, Canadian Miranda Wang and her company BioCellection want to change that.Stability is one of plastic greatest qualities and downside. There's limited evidence that some plastics can biodegrade (生物降解)but largely photo-plastics degrade in the sun. It’s a long process, and the truth is that we can only estimate how long it takes. Wang is looking to break the inaction and BioCellection's task is to make most plastic waste recyclable.She outlines two current methods. One is to take plastics like water bottles, wash them, cut them, melt and reconstitute them. “That's a very limited process” she says, due to the requirement that plastics be “clean” . The other, which can handle dirtier plastics and a level of pollution, is called hydrolysis(热解). Intense heat is applied to break down plastics so they can be reused as oils for energy, but “it’s not economical,’’ she says.BioCellection’s solution builds on research from over ten years ago, Wang explains, when a US studydiscovered pure polyethylene powder (聚乙烯粉)could be broken down by a catalyst (催化剂). Wang and her co-founder Jean hit upon a bacterium being able to eat plastic. In the years since, they engineered a comparable catalyst capable of doing the same job, only faster, which even works on plastics no one else can recycle at present. “We have now found a catalyst that is much cheaper than the one that was used before, Wang says.Currently focusing on plastic films like shopping hags, the three-hour process breaks clown plastic into chemicals that can act as the building blocks for more complex plastic products.“Right now we’re able to achieve about 70% transformation from plastic waste material to these chemicals,” she adds, saying they’re working to increase that figure.8. Why has so little plastic been recycled?A. Plastic is chemically stable.B. Recycling plastic led to pollution.C. We produced various plastics.D. Most photo-plastics degrade in the sun.9. What does Wang think of the two current methods?A. Highly effective and dynamic.B. Expensive and pollution-causing.C. Limited and energy-consuming.D. Widely used and recognized.10. What did BioCellection find effective to recycle plastics?A. Polyethylene powder.B. Chemical products.C. Plastic films.D. A catalyst.11. What is the text mainly about?A. Miranda Wang and her company.B. A new plastic recycling method.C. The greatest downside of plastic.D. Transformation of plastic waste.DDo you ever listen to the songs that your parents like? Chances are that you don’t. You probably think the music that they like is old and boring and that the songs on your playlist are muchcooler. But scientists found that people’s music taste changes as time goes by. So it is likely that your own musical preferences will follow a similar path to your parents’, whether you like it or not.We used to think that culture and personality (个性) are the only reasons for different music choices. But researchers at the University of Cambridge noticed that as people enter into different age groups, their social environment changes, and so does their music taste. There are some musical periods that people go through in their life.The first period comes in the teenage years, during which people like strong music such as punk and rock, because teenagers tend to be aggressive or want to be independent.But as people move into early adulthood, their lifestyles change they want to build close relationships with others. As a result, they become fonder of contemporary music, such as pop and R&.B, which is usually uplifting and danceable.When middle age comes, most people have settled down. During this period, people prefer music, such as jazz and classical, as well as music like country, folk and blues.As for old people, they prefer old songs in their childhoods. They generally listen to relaxing music, such as country music and jazz music. But you must be questioning. “Aren’t there old people who are still interested in or even crazy about rock music?” Of course there are. But their reasons for listening to rock music may have changed.At that age people may listen to remind themselves of their youth.12. What do young people usually think of the songs their parents enjoy?A. They are actually less cool.B. They are worth listening to.C. They are especially serious.D. They are hard to understand.13. How many musical periods are there that people go through in their life?A. Two.B. Three.C. Four.D. Five.14. People who want to make friends mostly prefer ________.A. jazz musicB. country musicC. rock musicD. pop music15. What is the best title for the text?A. People Have Different Opinions on MusicB. People Listen to Music for the Same ReasonC. People’s Taste in Music Changes with TimeD. People’s Lifestyle Can Be Changed by Music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。
江西省临川一中2020┄2021届高三上学期期中考试 英语试题
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第二节(共15小题;每题1.5分,满分22.5分)听下面5段对话。
每段对话后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听每段对话前,你将有时间阅读各个小题,每小题5秒钟;听完后,每小题将给出5秒钟的作答时间。
每段对话读两遍。
听第6段材料,回答6至7题。
6. What does the woman want to be?A. A doctor.B. A TV hostess.C. A writer.7. What does the man think of writing?A. Boring.B. Tiring.C. Interesting.听第7段材料,回答8至9题。
8. Why doesn’t the man go out for lunch?A. He doesn’t feel like eating.B. He has already cooked some food.C. He prefers eating much for supper.9. Where will the woman have lunch?A. At home.B. In a restaurant.C. At Mrs. Smith’s home.听第8段材料,回答10至12题。
10. How do the speakers think of the place?A. Amazing.B. A bit disappointing.C. Very terrible.11. What happened to the three children?A. They got hurt.B. They died in a lake.C. They disappeared.12. What will the speakers probably do while fishing?A. Read a book.B. Read some news.C. Listen to some music.听第9段材料,回答13至16题。
江西省抚州市临川区第一中学2020-2021学年高二12月月考英语试题
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江西省抚州市临川区第一中学2020-2021学年高二12月月考英语试题学校:___________姓名:___________班级:___________考号:___________一、阅读选择Pollution-sensitive DressDon’t be caught outside unaware of pollution levels in the air. The pollution-sensitive EPA Dress by Stephanie Sandstrom notices pollution in the air accordingly. This dress—which is actually quite pretty—looks like you pull it from the bottom of the dirty laundry pile when the air is dirty. It might protect your health by advising you to stay indoors for the day, but it won’t do you any favor if you’re meeting with clients.Eco-friendly UmbrellaTraditional umbrellas come with a fixed surface. Although it is changeable, you cannot replace it easily. This eco-friendly design is more flexible. It is actually only an umbrella skeleton(骨架) without any surface, which can be folded, so you can put anything such as newspapers, plastic bags or whatever you want to serve as the protecting surface.Eco-friendly Moss (苔藓) CarpetIt is said that walking on fresh grass increases your blood circulation. The Moss Carpet, created by Nguyen La Chanh, looks at getting the grass to your feet. The mat includes ball moss, island moss and forest moss. The humidity (湿度) of the bathroom ensures that it grows well. And that’s why you need to place it there and not anywhere else.1.Why is EPA Dress designed?A.To advise people to stay at home as often as possibleB.To stop people from meeting their clients if necessary.C.To make women look pretty even in the polluted air.D.To keep users informed of the polluted levels in the air.2.Compared with traditional umbrellas, the Eco-friendly Umbrella _____A.is changeable B.hasn’t any surfaceC.can be folded D.is made of newspapers3.Where does the text probably come from?A.A science report B.A personal blogC.A health report D.An official documentMary Krupa became friends with the grey squirrels during her first week at Penn State University, after spotting them running around and idly(漫不经心地) wondering what they would look like with tiny hats on their heads. Today, everyone at the university knows her as the “Squirrel Girl”.Mary started bringing them food and gradually they began to trust her. She managed to put a hat on a squirrel and take a picture. Thinking that she could do something to lift up peo ple’s spirits, she started posting similar photos on Facebook. The response was greatly positive, and before long Mary and her squirrels became an Internet sensation.Growing up in a neighborhood outside the state college, Mary was always fond of birds and animals around her home, but she didn’t interact with people very much. She was later diagnosed with Asperger syndrome(阿斯伯格综合征), but the squirrels changed that. “The squirrels are actually a good way to break the ice, because I’ll be sitting here patting a squirrel and other people will come over and we just start feeding the squirrels together and chatting about them,” she said. “I am a lot more outgoing.”And in case you’re wondering how Mary is able to get the squirrels to do what she wants for her photos, it has a lot to do with food. For example, whenever she wants them to hold or play with something, she puts peanut butter on the prop(道具), and they’ll grab it. But getting to that part took a while. In the beginning, she would throw peanuts up the trees on campus and invite the squirrels to come down and get them, but they hesitated to approach her. She had the patience to earn their trust, though.This year, Mary is graduating with degrees in English and Widlife Sciences. She wants to be a science writer and educate people on how to preserve the environment. As for her furry friends, Mary plans to stay in the area and visit them as often as she can.4.What kind of change do squirrels bring to Mary?A.She is sicker than before. B.She is more interested in animals. C.She is more sociable than before. D.She is less willing to go to college. 5.How did Mary manage to take photos of squirrels wearing hats?A.By putting them in cages. B.By playing music to them.C.By attracting them with colorful food. D.By building a close relationship with them.6.Which words can best describe Mary?A.Patient and caring. B.Confident and strong.C.Sociable and healthy. D.Traditional and hard-working. 7.What can be the best title for the text?A.Mary’s experience in university.B.Making friends with wild animals C.The “Squirrel Girl” of Penn State University D.The bridge between Mary and squirrelsWhat are the biggest problems that society will have to deal with in the new age? There re diseases like AIDS and cancer. There’s climate change, of course. And what about producing enough cheap food and energy for the world’s growing population? Who’s going to solve all these terrible problems? Yes, politicians and world leaders will have a big part to play. Yes businesses will need to create the economic wealth to pay for some of these things. But who’s going to make a much greater difference to something like AIDS or climate change. It’s going to be a scientist. It is the scientist who can turn some new bit of science into a new technology to solve these problems. If you like thinking about the world around you, why not become a scientist? It doesn’t mean you have to wear a white coat and plastic glasses and spend all your time in a lab as most people often imagine! Scientists do all kinds of amazing things that are actually interesting!Military scientists develop not only new weapons but new military technologies that could help make wars out of date. Forensic(法医的) scientists work with the police to find quite small clues to catch criminals. Scientists work in schools and colleges as the teachers and professors who will train tomorrow’s scientists. Don’t think a scientist is far away! Maybe you like cooking? You could be a food technologist helping to keep fruit and vegetables fresher for longer. Perhaps sport is your thing? Do you know that most top athletes work with sports scientists in order or improve their performance? You could even be the science writer who gets to spend the life studying the latest advances and sharing them with the world.Looking for something to do for the rest of your life? My advice? Take a long and hard look at science. It is interesting and ever.8.Many problems are mentioned in the first paragraph to .A.suggest they are impossible to be solvedB.introduce the causes of these problemsC.show the writer’s worry about the future worldD.show scientists play an important part in solving them9.What is needed to solve these problems? .A.Advanced weapons B.Enough energyC.New technologies D.A growing population10.Most people think the life of scientists is .A.amazing B.boringC.colorful D.unreal11.Which of the following statement is NOT true according to the passage?A.Owing to military technologies, there has been no warsB.For those interested in cooking, food technologies may be a choiceC.Forensic scientists play an important part in dealing with crimesD.Most athletes can achieve greater achievement with the help of sports scientistsIt is quite reasonable to blame traffic jams, the cost of gas and the great speed of modern life, but manners on the road are becoming horrible. Everybody knows that the nicest men would become fierce tigers behind the wheel. It is all right to have a tiger in a cage, but to have one in the driver’s seat is another matter altogether.Road politeness is not only good manners, but good sense too. It takes the mostcool-headed drivers great patience to give up the desire to beat back when forced to face rude driving. On the other hand, a little politeness goes a long way towards reducing the possibility of quarrelling and fighting. A friendly nod or a wave of thanks in answer to an act of politeness helps to create an atmosphere of good will and calm so necessary in modern traffic condition. But such behaviors of politeness are by no means enough. Many drivers nowadays don’t even seem able to recognize politeness when they see it.However, misplaced politeness can also be dangerous. Typical examples are the driver who waves a child crossing the street at a wrong place into the path of oncoming cars that may be not able to stop in time. The same goes for encouraging old ladies to cross the road wherever and whenever they want to. It always amazes me that the highways are not covered with the dead bodies of these grannies (奶奶).An experienced driver, whose manners are faultless, told me it would help if drivers learnt to correctly join in traffic stream without causing total blockages that give rise to unpleasant feelings. Unfortunately, modern drive rs can’t even learn to drive. Years ago, experts warned us that the fast increase of the car ownership would demand more give-and-take from all roadusers. It is high time for all of us to take this message to heart.12.According to the passage, trouble on the road are often caused by ____________. A.road conditions B.the speed of modern lifeC.the large number of car D.the behavior of the drivers13.In the writer’s opinion, ___________.A.drivers should show road politeness properlyB.strict traffic rules are badly neededC.unskillful drivers should be punishedD.drivers should avoid traffic jams14.The underlined word “give-and-take” in the passage means __________. A.politeness and impoliteness B.willingness to give in to each other’s wishesC.offering help to others as much as possible D.good manners and bad manners 15.What is the best title of the passage?A.Road Politeness B.Traffic ProblemsC.Bad Manners on the Road D.Good Drivers and Bad Driver二、七选五Social media and the mobile web have given rise to a strange phenomenon called the selfie(自拍). It refers to a picture of yourself, usually shared on any social networking website.16.Some selfies are extreme close-ups(特写镜头), and others show part of an arm held straight outward. A few of them even feature the subject standing in front of a bathroom mirror.Everyone takes selfies, but the younger crowd seems to be especially involved in the trend. Young people are relatively heavier digital users. They are interested in staying connected to their friends. 17..There are also kinds of psychological (心理上的)actors driving people to take a selife and upload it to a social networking site. 18.. A quick and easy way to attract other’s attention is to get “likes” and comments from friends. Secondly, it’s human nature to show off your own great achievements. When you feel good about yourself or look good, it’s far too easy to take out your phone and document it all through one or several selfies. 19.That’s right. Sometimes people are bored at work, bored at school, bored at home and even bored on the toilet. Last butnot least, social media is about being social. If that means uploading as many selfies as possible, then so it be. It’s fun, and it’s a cool way to sort of document your own life.Finally, there are t hings to be mindful of when you’re posting. It’s easy to think you’re sharing a photo with a few people. 20.So don’t post anything online, selife especially. A.There are lots of selfie styles.B.The rise of selfies has become universal.C.Social media, to some extent, is the driving force of their selife activity.D.The desire to take, post and get “likes” on selfies goes back to a biological behavior.E.But the whole world of social media is public and every individual can get access to it.F.There are also people who will take selfies because they have nothing else better to doG.The leading factor is that people want to get attention from as many people as possible.三、完形填空Life is a series of choices and we can’t always foresee the consequences. Harr y Saleen, an obese man with too much money and power, faced a(n) 21 . Outside his office waited his personal doctor, 22 him and important news about the 23 medicine that could save his life. On the other side of the world, one of his engineers waited for his decision on an important 24 of business.His secretary asked him 25 she could bring the doctor in. The billionaire businessman made his decision. “No, let the fool26 ,” answered Saleen, “business comes first.” 27 the health problem caused by his huge weight, he was still 28 about making money. He 29 a finger, and one of his staffs 30 to switch on a large television set.On the screen appeared his engineer. They talked by satellite directly to each other although they were thousands of miles 31 . “It’s all ready to explode, Mr. Saleen”, he said, “Just one32 .” His engineer was standing above Pakan Valley in South America. A few months ago, it had been a rainforest. Then Saleen’s men came, 33 all the valuable trees and forcing the villagers to move out. 34 the valley, a dam had been built. This would provide 35 for the factories that Saleen planned to build in that area. The factories would bring him great profits. He saw no reason to delay. He ordered the engineer to press the button. There, in the valley, a cloud of dust rose, followed by a dull explosion. A large river changed its 36 and water flooded into the valley.“Good, that’s that. Now, get that doctor in here” he 37 .The doctor came in with a worried look and started to 38 his healthy patient. “You are doing very well, Mr. Saleen. The only medicine is saving your life. But the difficulty is getting more of it.”“Can you get more? Money is no problem.” Saleen said. “Tell me what you need and we’ll get it.”The medicine was made of a plant, which is 39 .There is only one place in the world where the plant grows.”“Where?” asked the businessman, 40 .The doctor smiled. “Well, luckily, the plant comes from one of the lands you won, sir. It comes from a place in South America, known as Pakan V alley.”21.A.consequence B.opportunity C.choice D.problem 22.A.bringing B.taking C.fetching D.heading23.A.amazing B.interesting C.heart-breaking D.important 24.A.event B.matter C.incident D.accident25.A.that B.whether C.until D.unless26.A.leave B.wait C.come D.talk27.A.Besides B.Despite C.Through D.Except28.A.addicted B.dying C.interested D.crazy29.A.arose B.rose C.raised D.aroused30.A.began B.stopped C.hesitated D.hurried31.A.apart B.away C.far D.aside32.A.look B.word C.moment D.while33.A.putting down B.growing up C.speeding up D.cutting down 34.A.Above B.Along C.Through D.Across35.A.force B.time C.power D.fund36.A.course B.cause C.process D.Mind37.A.demanded B.recommended C.commanded D.suggested 38.A.look B.examine C.inspect D.test39.A.common B.usual C.rare D.normal40.A.delightedly B.thoughtfully C.patiently D.cautiously四、用单词的适当形式完成短文China to promote(推进)traditional opera in schoolsChina’s central government has pledged(保证,发誓)to promote traditional opera in schools.Primary schools, secondary schools, colleges 41.universities will give students the opportunity 42.(watch) traditional opera free of charge in 2017, according to a guideline jointly 43.(make) by the publicity department of the Communist Party of China and the ministries of culture, education and finance. By 2018, students in all schools and colleges nationwide can watch44.single opera free of charge every year.The campaign for traditional opera to reach students will be common in all schools by 2020, 45.will make traditional opera popular46.students, teachers and families. The guideline also urges schools to strengthen the creation of opera interest groups. It once 47.(call) on the joint(共同的)efforts of the government, education, society and individuals of support the campaign. The guideline also encourages investment(投资)from enterprises, social 48.(organize) and individuals. There are hundreds of forms of local opera in China, with Peking Opera the most famous. Peking Opera and Kunqu Opera 49.(list)by UNESCO as an intangible(无形的)50.(culture)heritage(遗产).五、短文改错51.假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。
2020-2021学年江西省临川第一中学高三英语上学期期中考试试题及参考答案
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2020-2021学年江西省临川第一中学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AThe OrchardI had a very nice meal at the Orchard restaurant.The food was lovely and the service was quite good.We chose to eat in the garden which was full of beautiful flowers and very relaxing.The only disappointment was the dessert — the apple piewas far too sweet and it was cold too.Apart from that it was an enjoyable evening.As for the price — what a bargain,excellent value for money!Park InnThe best thing about Park Inn was the service — it was excellent.There was a warm welcome when we arrived and the waiters were very helpful all evening.However,the food wasn’t as good.The menu looked interesting but the meals were rather tasteless.It’s not a cheap restaurant and I wasn’t happy to pay so much for boring food.Richard’s PlaceWhen we enteredthe restaurant,we were surprised by the lovely interior (内部的) design of it.So stylish,so modern!This is one of the most popular restaurants in town and it’s very easy to see why.The food was great and excellent value for money but it was ruined by very,very poor service!TheRiversideIt was lovely sitting outside and looking over the river.There were lots of little lanterns (灯笼) and color1 ed lights everywhere and it all looked very pretty.The food was good,nothing very special but quite tasty.The service was OK; we didn’t have to wait too long for our food but the waiter never looked very happy!It’s quite an expensive place but with the view I think it’s quite good value for money.1. In which restaurant can customers eat in the garden?A. Park Inn.B. TheOrchard.C. The Riverside.D. Richard’s Place.2. What makes the customers of Park Inn most satisfied?A. The food.B. The price.C. The service.D. The environment.3. In Richard’s Place,customers can ________.A. receive good serviceB. enjoy its moderndesignC. listen to wonderful musicD. enjoy the beauty of a riverBRecently, I read about a promotion from a home builder in San Diego where consumers (消费者) could buy a 4,000 square foot house for $1.6 million and get a smaller home bythe developer valued at $400 thousand for free. This sounds like a fantastic deal, but I am alwayswary ofany promotion labeled (给……加标签) with“buy one get one free”, and here is why.Oftentimes, “buy one get one free” ends up being “buy two at the regularprice”. For example, I often see “buy one get one free” ads for orange juice at the supermarket, but the first box always costs over $5.00. At the same time, the juices not in the promotion are selling for $2.50 to $2.99 a box.Another problem with “buy one get one free” is that oftentimes you do not need the second item. I only consume one gallon of milk every two weeks. If I were talked into buying a second gallon in a “buy one get one free” promotion, then the second gallon would go bad before I have time to consume it. That creates waste instead of savings.In the case of theSan Diegodeveloper, so far they have received one offer on their expensive houses, but the buyer does not want the cheaper house for free. Instead, he wants the value of the smaller home taken away from his purchase price. I think this guy is quite wise because he saw right through the marketing of “buy one get one free”.Finally, it is up to you to see how much you need and how much you are willing to spend. Knowing the regular price of things also helps you in deciding whether a “buy one get one free” promotion is truly a great deal.4. What does the underlined part “wary of” in Paragraph 1 probably mean?A. annoyed atB. careful aboutC. familiar withD. puzzled about5. Why does the author mention milk in Paragraph 3?A. To show that there are many promotions of food.B.To suggest that people think twice before they shop.C. To prove that the second item isn’t always as good as the first one.D. To show that people often buy more than they need in the promotion.6. What does the house buyer want to do?A. Buy the smaller house only.B. Get the smaller house for free.C. Buy the larger house for $1.2 million.D. Buy both the larger and smaller houses for $2 million.7. How does the author organize the text?(P: Paragraph)A. B. C. D.CThe regular world presented to us by our five senses — you could call it reality 1.0 — is not always the most user-friendly. We get lost in unfamiliar cities; we meet people whose language we don’t understand. So why not try the improved version: augmented reality(AR)or reality 2.0 ? AR technology adds computer-produced images on the real world via a mobile phone camera or special video glasses.Early forms of AR are already here — smart phones can deliver information about nearby ATMs and restaurants and other points of interest. But that’s just the beginning. A few years from now the quantity of information available will have increased hugely. You will not only see that there’s a Chinese restaurant on the next block, but you will be able to see the menu and read reviews of it.This is where the next revolution in computing will take place: in the interface(界面)between the real world and the information brought to us via the Internet. Imagine bubbles floating before your eyes, filled with cool information about anything and everything that you see in front of you.Let’s jump ahead to ten years from now. A person trying to fix a car won’t be reading a book with pictures; he will be wearing a device that projects animated 3D computer graphics onto the equipment under repair, labelling parts and giving step-by-step guidance.The window onto the AR world can be a smart phone or special video glasses. But in ten years’ time these will have been replaced by contact lenses(隐形眼镜) with tiny LEDs, which present something at a readable distance in front of eyes. So a deaf person wearing these lenses will be able to see what people are saying.The question is, while we are all absorbed in our new augmented reality world, how willwe becommunicating with each other?8. What is the text mainly about?A. The relationship between reality 1.0 and reality 2.0.B. Different forms of the AR technology.C. The next information technology revolution.D. The popularity of the AR technology.9. Which of the following will AR technology support according to the text?A. To pay for things online conveniently.B. To play online games merrily.C. To offer information efficiently.D. To communicate with others socially.10. What are Contact lenses with tiny LEDs used for?A. Show texts and images.B. Protect people’s eyes.C. Help deaf people communicate.D. Replace smart phone.11. What’s the author’s attitude towards the AR technology?A. Indifferent.B. Critical.C. Concerned.D. Favourable.DThe Rise of Voice TechnologyVoice technology has come a long way. Just a few years ago, it would have been unusable. But now, those who follow the technology know that it has got considerably better.Writing with your voice raises several interesting questions. How difficult is it actually? Human speech involves a lot more starting and stopping with errors and the need for repairing broken sentences than you may think. Even gifted speakers make mistakes. To turn the spoken word into reasonable writing requires lots of planning. You’ll need some kinds of notes or other organisers to make it work.Another question turning speech into writing raises is the style. How would writing make the change that people speak their writing rather than type? Chances are that it would come up with many more short sentences and more concrete language, which is good. It would probably also rely on prepared phrases a lot more often, which is not available when you are speaking quickly.To confirm this, a column was not written, but dictated (听写). It was composed from brief notes written down for structure only, and it was edited for length, with all of the original errors kept in. Here were the results.The first was that the literal accuracy was extremely high. There weren’t many cases wherethe software had heard one word incorrectly and written down another. But the other result was that the readability of this column was rather bad. Obviously, the blame is not with the technology at all, which turns out to be rather good. Speaking into writing relies on a better human brain than the one we currently possess. Writing is hard. There’s a reason it can’t be done at the speed of speech, in real time.To clarify the matter, this time paragraph breaks were added after the whole writing. Punctuations (标点) had to be spoken aloud, and after a full stop, the first word in the new sentence was capitalized automatically. Some minor punctuation marks were added to make it clearer. To improve accuracy, people “trained” the software beforehand, reading a prewritten passage aloud. Actually it turns out to be more effective. All of these ensure the satisfactory completion of turning speech into writing.Language is the most important tool for human interaction, and voice is one beautiful part of language. With the maturity of modern technology, it has given birth to a great change in the human-computer voice interaction.12. According to the passage, which helps to turn speech into writing in terms of style?A. There is careful planning in advance.B. Errors and broken sentences are avoided.C. People type words as fast as they say them.D. The writing contains more prepared phrases.13. To achieve better results, the author mentions some changes for ______.A. processing errors in a column.B. adding minor punctuation marks.C. increasing the number of brief notes.D. integrating short paragraphs in writing.14. The author suggests that ______.A. human brains are responsible for poor dictated writing.B. writing with voice promises to improve the quality of writing.C. writing is an unnatural act that can hardly be learned and improved.D. technology has a long way to go in the human-computer voice interaction.15. What is the passage mainly about?A. Why people fully intend to turn speech into writing.B. What role voice technology plays in improving readability.C. Where the human-computer voice interaction is at an advantage.D. How voice technology enables the change from speech into writing.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。
江西省临川区2020┄2021学年高二英语上学期期中试题含解析
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总分:150分完成时间:120 分钟第Ⅰ卷(选择题,满分115分)第一部分听力(共两节,满分30分)第一节(共5小题;每小题1.5分)听下面5段对话。
每段对话都有一个小题,从题中的A,B,C,三个选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来有关的小题和阅读下一小题,每段对话只读一遍。
1. How much do four jackets cost today?A. $80B.$90C.$1002. What does the woman suggest the man do?A. stay indoorsB. Eat fresh fruitC. Take exercise3. Whose bowl is it?A. The man’sB. Aunt Betty’sC. The woman’s4. What will the speakers do next?A. Go on shoppingB. Have something to eatC. Go to a Mexican restaurant5. Why will the speakers return to the museum next weekend?A. It is too large to cover in a dayB. There are too many people todayC. There will be a special exhibit then.第二节(共15小题;每小题1.5分,满分22.5分)听第6段材料,回答第6和7题。
6. What are the speakers mainly talking about?A. How to spend ChristmasB. What to do with their familyC. When to stay with their family7. What will the woman possibly do?A. Cook and wash up for her kids over ChristmasB. Go and stay in a cottage in WalesC. Visit her parents听第7段材料,回答第8和9题。
江西省抚州市临川区第一中学2020-2021学年高二上学期期中考试英语试题
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江西省抚州市临川区第一中学2020-2021学年高二上学期期中考试英语试题学校:___________姓名:___________班级:___________考号:___________ 一、阅读选择1.Which of following magazines has the longest history?A.Real Simple.B.Better Homes and Gardens. C.Woman's Day.D.Taste of Home2.What do we know about Taste of Home?A.It has been losing popularity in recent years.B.It offers suggestions about childcare.C.It is a purely food-related magazine.D.Readers no longer find advertisements in it.3.Which of the following is TRUE about the four magazines?A.Real Simple mainly serves women readers.B.Woman's Day is out of reach for most families.C.Readers could advertise in Taste of Home free.D.Better Homes and Gardens is published quarterly.After the sudden loss of her 5-year-old daughter, Elizabeth, Natalia Spencer felt she needed to do something to honor the little girl. That strong wish inspired Spencer to start what she calls a “Walk of Love”, a 6,000-mile trek (长途徒步旅行)along the British coastline.“Elizabeth particularly loved the beach and the sea and we visited the seaside a lot. After she passed away, I went to the seaside and it was the first time I had felt some comfort,” Spencer said. “I kne w this was what I had to do. It was something I could do and it would somehow make life more bearable.”On Valentine's Day, Spencer began walking Durdle Door in Dorset, England, the last beach she took Elizabeth to before she became ill. So far, Spencer has journeyed about 1,500 miles, walking through Dorset, Cornwall, Devon and the entire coast of Wales. Every day, except Saturday, Spencer walks 20 miles. Often locals join her; many times they share stories about losing their own children.Everything changed for Spencer on Nov. 22, 2015. Spencer noticed Elizabeth was ill with what she thought—was a chest infection. But the girl’s health worsened rapidly. Doctors diagnosed her with a life-threatening immune condition where the immune cells damage tissue and organ. This caused Elizabeth's organs to shut down and stopped the blood supply to her arms and legs. She was moved to Bristol Children's Hospital where she spent 18 days on life support before passing away on Dec. 10.After Elizabeth died, Spencer struggled. She stayed with friends because it felt too hard to live in a house with the memories of Elizabeth. In January, a friend encouraged Spencer to go for a walk and the two ended up at the Gower Peninsula in Wales. That's when she realized she wanted to walk along the coast for her daughter.While walking provides Spencer with time to grieve (感到悲痛),she’s also using the trip to raise£100,000(about $144,000) for the Bristol .Children’s Hospital. She admired the doctors and nurses and wanted to raise money to allow another family access to treatment.Spencer expects to complete her walk next spring. She’d love to finish on Valentine’s Day, but doesn’t know if that is realistic.4.Why did Natalia Spencer decide to walk along the British coastline?A.To realize her daughter's dream.B.To remember her dead daughter.C.To share stories with people around.D.To raise money for a children’s hospital.5.What does Paragraph 3 mainly talk about?A.Spencer’s story-sharing with the local people.B.Spencer’s daily life after Elizabeth’s death.C.Spencer’s memory of traveling with Elizabeth.D.Spencer's walking along the coastline.6.What do we know about Elizabeth?A.She encouraged her mother to walk around Britain.B.She once walked along the entire British coast.C.She died of an immune-system disease.D.She fell sick as a result of a chest infection.7.What could be the best title for the text?A.A Little Girl’s Struggle with a Strange Disease.B.A Mother’s Effort to Save Her Daughter.C.A Woman's Action to Raise Money for Children.D.A Mother’s Walk to Honor Her Lost Child.In most Hollywood movies, the Native American Navajos still fight on horses in the American Southwest. But during World War II, a group of Navajos made their language into weapon to protect the United States. They were the Navajo Code Talkers, and theirs is one of the few unbroken codes (电码)in military history.Navajo was the perfect choice for a secret language. It is very complex. One vowel (元音)can have up to ten different pronunciations, changing the meaning of any word. In the 1940s, Navajo was unwritten language. No one outside of the reservation could speak it or understand it.The Navajo Code team had to invent new words to describe military equipment. For example, they named ships after fish: lotso-whale (battleship), calo-shark (destroyer), beshloiron-fish (submarine). When a Code Talker received a message via radio, he heard a series of unrelated Navajo words. He would then translate the words into English and use the first letter of each English word to spell the message. The Navajo words tsah (needle),wol-la-chee (ant), ah-kh-di-glini (victor), and tsah-ah-dzoh (yucca) spelled NA VY.The Code Talker kept the code a secret. They memorized everything. There were no code books. As a result, no ordinary Navajo soldiers, if captured by the enemy, could understand the code. More than 3,600 Navajos served in World War II, but only 420 were Code Talkers with the US Marines. They coded and decoded battlefield messages better and faster than any machine. They could encode, transmit, and decode a three-line English message in 20 seconds. Machines of the time required 30 minutes to perform the same job.Even after the war the code remained top secret. When they were asked about their role, Code Talkers just said: “I was a radioman.” War movies and histories came out without mentioning them. The code was never used again and was finally declassified in 1968. Only then did the secret came out.8.What do we know about the Navajo language?A.It had complex spoken and written forms.B.It was created during the Second World War.C.It was understood only by the Navajos.D.It consisted of ten vowel letters in total.9.What did the Navajo Code team do after receiving a message?A.They put the unrelated Navajo words in order.B.They recorded the message in Navajo letters.C.They submitted it to the officer immediately.D.They turned It into English in a secret way.10.What does the underlined word “declassified” most probably mean?A.Replaced. B.Approved.C.Made known. D.Forbidden.11.What can be inferred from the passage?A.The Navajo Code Talkers can be found to fight on horses in US movies.B.The Navajo language contributed a lot to the US army in World War II.C.War messages were translated into English through Navajo code books.D.Around 12% Navajo soldiers were taken prisoner during World War II.I was at my parent’s dinner table. Before me was a worn journal of thin and discolored pages. It was my grandfather's journal and now belonged to my father. My grandfather had passed away in the months leading up to my birth. I never got to visit the places he had frequently and people who had been a part of his life’s journey.I was now about to enter his world, through the words he had left behind. Within minutes, I was attracted by the power of the written words. In the magical script before me, I was transported to another age when food was an everyday art, planned, prepared and enjoyed in the company of others, and a time when people had the heart to pause,their own lives to embrace (拥抱)each other’s struggles. All this was conveyed to me in the beauty of the words that flowed together to connect with the writer’s mind and understand the world they lived in.That kind of writing seems to be lost on us today. We have gotten used to writing inbite-sized pieces for a public looking for entertainment, and hungry for information. No wonder, there are nearly 200 million bloggers on the Internet and a new blog is created somewhere in the world every half a second. Instead of adding to our collective wisdom, most of these writings reflect the superficiality (肤浅)and impatience of our day and age.This not only robs us of the skill of writing impressive essays, it also prevents us from exploring what is truly important. Writing humbles us in a way that is vital for our charactergrowth, by reminding us about the limits of the self and our appropriate place in the vast flow of life. Writing frees us by helping us explore the unknown so that we truly open up to the magic of the world around us. I saw all of this in the writing s of my grandfather. And I’ve seen it again and again in the writings of the greatest thinkers of humanity. Their writings reflect deep thought on issues of human importance.12.Why does the aut hor begin the text with her grandfather’s journal?A.To show her respect for her grandfather.B.To present the importance of good writings.C.To raise the problem of today’s writing.D.To express her great interest in the journal.13.What did people use to do in the author’s grandfather’s age?A.They used to live a hard life.B.They cared about each other.C.They were fond of writing.D.They taught kids how to cook.14.What does the third paragraph mainly discuss?A.The current situation of public writing.B.The large number of blogs on the net.C.People’s lack of wisdom nowadays.D.The information age we are living in.15.What does the author try to convey in the last paragraph?A.To express her eagerness to learn writing skills.B.To show her reflection on humanity in her age.C.To discuss what good writings should be like.D.To stress the effect of her grandfather’s journal on her.二、七选五Black Friday is the day after Thanksgiving Day and the Friday before Cyber Monday in the United States. It is a busy shopping day and is a holiday in some states. Many people have a day off work on Black Friday. Some people use this to make trips to see family members or friends who live in other areas or to go on vacation. 16.Shopping for Christmas presents is also popular on Black Friday. Many stores havespecial offers and lower their prices on some goods, such as toys.17.Many people take a day of their annual leave on the day after Thanksgiving Day. Many organizations also close for the Thanksgiving weekend.Public transport systems may run on their normal schedule or may have changes. 18.There can also be congestion (拥挤)on roads to popular shopping destinations.Black Friday is one of the busiest shopping days in the USA.19.One theory is that the wheels of vehicles in heavy traffic on the day after Thanksgiving Day left many black markings on the road surface, leading to the term Black Friday.The other theory is that the term Black Friday comes from an old way of recording business accounts. 20.Many businesses, particularly small businesses, started making profits before Christmas. Many hoped to start showing a profit, marked in black ink, on the day after Thanksgiving Day.A.Black Friday is a public holiday in some states.B.Black Friday is a shopping day for a lot of reasons.C.Losses were recorded in red ink and profits in black ink.D.Others use it to start shopping for the Christmas season.E.Some stores extend their opening hours on Black Friday.F.As time goes on, a new explanation of black Friday has become popular.G.There are two popular theories as to why the day after Thanksgiving Day is called Black Friday.三、完形填空On Christmas Eve despite the fun and laughter from relative reunions, 13-year-old Frank Wilson did not cheer up. It was true that he had 21 all the presents he wanted. And he also 22 the big Christmas dinner with family members. 23 ,Frank was not happy because this was his first Christmas without his brother, Steve, who was killed in a car accident. Frank 24 his brother and the close companionship they had together.Frank said good-bye to his parents and relatives, saying he was leaving early to see a friend. Since it was cold outside, Frank 25 his new jacket, his favorite gift from Grandma. He placed the other 26 on his new sled (雪横)and then headed out.As Frank went down the street toward home, through one front window, he saw a room with old 27 hanging over an empty fireplace. A woman was seated nearby, crying. Thestockings 28 him of the way he and his brother always 29 theirs side by side. The next morning they would find presents.A sudden 30 struck Frank. He knocked on the door. “Yes? the 31 voice of the woman answered. “May I come in?” asked Frank. “You are very welcome,” she said, seeing his 32 full of gifts and thinking he was making a 33 of gifts. “But I have no food or gifts for you. I have 34 for my own children.” “That’s why I am here.” Frank said. “Please 35 whatever presents you would like for your children from the sled.” “Why? God bless you!” the 36 woman answered. She took some candies, a toy plane and a doll. Finally, the stockings were 37 . The woman thanked Frank and he left.Frank’s 38 was full of happiness. Later he gave his jacket to a poor boy. At last, he 39 all his presents. Now Frank was wondering how he could 40 to his parents where his presents had gone.21.A.bought B.received C.lost D.wrapped22.A.prepared B.delivered C.enjoyed D.reserved23.A.However B.Instead C.Therefore D.Otherwise 24.A.praised B.missed C.forgot D.admired25.A.put away B.handed out C.set aside D.put on 26.A.presents B.clothes C.shoes D.foods27.A.furniture B.lamps C.stockings D.books28.A.warned B.reminded C.informed D.convinced29.A.found B.shared C.made D.Hung30.A.thought B.problem C.belief D.expression31.A.frightened B.excited C.sad D.confused32.A.face B.room C.bag D.sled33.A.survey B.delivery C.collection D.donation 34.A.everything B.nothing C.something D.anything35.A.take B.show C.offer D.bring36.A.disappointed B.surprised C.worried D.interested 37.A.empty B.broken C.gone D.full38.A.heart B.family C.present D.holiday39.A.picked up B.turned in C.took over D.gave away 40.A.declare B.prove C.explain D.admit四、用单词的适当形式完成短文Writing text messages (短信)while walking is dangerous. A study says it is more dangerous than texting while driving. Researchers found that there are more 41.(injure) to texting pedestrians (行人) than there are to texting motorists. Their report says walking is not as easy 42.we think. We must focus on many things at the same time to walk safely in a straight line. The researchers said that people forget how to walk 43.(proper), so dangerous things happen to them. They bump into walls and other people. They walk into cars, fall over things in the street, and even fall into holes 44.down stairs.A professor said walking is a difficult action. There are several reasons 45.texting makes walking dangerous. 46.is that people cannot see the street. Another is that they focus on their phone keyboard instead of their feet. A final reason is that their minds are somewhere else —they are not thinking about 47.(walk) from A toB safely. The professor said over 6,000 people 48.(visit) his hospital last year because of texting. He said 49.worst cases are head damage. When a pedestrian is tossed into the air he/she has nothing 50.(protect) the head. The damage can be serious.五、短文改错51.假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。
江西省临川一中高二上学期期中考试英语试题
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第二节(共15小题;每小题1.5分,满分22.5分)听下面5段对话或独白。
每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题给出5秒钟的作答时间。
每段对话或独白读两遍。
听第6段材料,回答第6、7题。
6. When did the woman graduate from college?A. Two years ago.B. Three years ago.C. Five years ago.7. What does the man think the woman should do?A. Practice French with him.B. Learn another foreign language.C. Spend more time practicing her spoken French.听第7段材料,回答第8、9题。
8. How did the man probably book a flight ticket?A. By calling the airport.B. By visiting a website.C. By calling a travel agency.9. What will the man do first?A. Visit friends.B. Do sightseeing.C. Attend a conference.听第8段材料,回答第10至12题。
10. Why doesn’t the woman want to go to the cine ma tonight?A. Because she’ll be busy tonight.B. Because she wants to save money.C. Because she doesn’t like watching movies.11. What is Ted?A. A teacher.B. A college student.C. A high school student.12. How did they find their time in the park last time?A. It was a bit disappointing.B. It was amazing.C. It was boring.听第9段材料,回答第13至16题。
江西省2020-2021学年高二上学期期中英语试题分类汇编-书面表达含答案
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江西省2020-2021学年高二上学期期中英语试题分类汇编-书面表达江西省赣州市十五县(市)十六校2020-2021学年高二上学期期中联考英语试题第二节书面表达(满分25分)52. 假如你是李华,你的英语笔友Peter写信向你咨询近日你校举办的“节约粮食,反对浪费”的活动。
请你用英语给Peter写一封回信。
要点包括:1.举办活动的原因。
2.爱惜粮食的具体措施。
注意:1.参考词汇:节约粮食,反对浪费:save food and combat waste. 节约:thrift.2.字数:100词左右。
可以适当增加细节,以使行文连贯。
【答案】Dear Peter,I am more than delighted to hear from you. You have asked me about the “save food and combat waste” activity, which is held all over our nation. Let me introduce it to you in detail.There are some reasons accounting for the activity. As we all know, eating is an important part in our daily life. However, many people waste food without even realizing it. What’s more, there is a growing population in my country while our resources are limited, which makes it urgent to save food. Faced with such a serious situation, it is high time that we took action now and started small. To begin with, When we have dinner out in a restaurant, remember to order appropriately, and clean the plate,because small actions make a big difference. In addition, we held various activities to remind citizens of the importance of the food. For example, posters are made to promote food saving actions.Above is some information about the activity “save food and combat waste.” Looking forward to your reply.Li Hua江西省吉安市省重点中学2020-2021学年高二上学期联合考试英语试题第二节:书面表达(25分)52. 随着科技的发展,移动支付成为潮流。
江西省临川一中暨临川一中实验学校2020-2021学年高二上学期期中考试生物试题
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临川一中暨临川一中实验学校2020—2021学年上学期期中考试高二生物试卷时间:90分钟满分:100分命题人:审题人:一、选择题:本题共30小题,每小题2分,共60分。
每小题只有一个选项符合题目要求。
1.火的使用,极大地促进了人类的进化,高温使蛋白质分子的空间结构变得伸展、松散,容易被蛋白酶水解,因而煮熟的鸡蛋容易被消化。
下列说法正确的是()A.高温破坏蛋白质的肽键,使蛋白质变得伸展、松散B.胃蛋白酶催化鸡蛋蛋白分解的过程中,会有水的生成C.胃蛋白酶是水解蛋白质的酶,自身不会被蛋白酶分解D.胃蛋白酶、鸡蛋中的蛋白质,都是在核糖体上合成的2.科学家用显微技术除去变形虫的细胞核,发现其新陈代谢减弱,运动停止;当重新植入细胞核后,发现其生命活动又能恢复,这说明了()A.细胞核是细胞新陈代谢的控制中心B.细胞核是遗传物质的储存和复制场所C.细胞核是细胞遗传特性的控制中心D.细胞核是细胞代谢的主要场所3.将洋葱表皮细胞浸于20%蔗糖溶液中,细胞发生质壁分离,则原细胞液浓度()A.小于20%蔗糖溶液浓度B.等于零C.大于20%蔗糖溶液浓度D.等于20%蔗糖溶液浓度4.下列有关细胞中“一定”的说法正确的是()①没有细胞结构的生物一定不是原核生物②呼吸作用一定在线粒体中进行③光合作用一定在叶绿体中进行④所有生物的蛋白质一定是在核糖体上合成⑤有中心体的生物一定不是高等植物⑥以RNA为遗传物质的生物一定是原核生物A.①④⑤B.①③⑤C.①⑤⑥D.②③⑥5.根据细胞的功能推测,下列叙述中错误的是()A.唾液腺细胞比心肌细胞具有更多的高尔基体B.白细胞比红细胞具有更多的溶酶体C.植物根尖分生区细胞比叶肉细胞具有更多的叶绿体D.合成性激素的卵巢细胞比皮肤的表皮细胞具有更多的内质网6.“加法原理”和“减法原理”是实验设计过程中控制自变量的两种原理。
与常态比较,人为增加某种影响因素的称为“加法原理”,而人为去除某种影响因素的称为“减法原理”。
2021-2022学年江西省临川一中暨临川一中实验学校高二(上)期末英语试卷(附答案详解)
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2021-2022学年江西省临川一中暨临川一中实验学校高二(上)期末英语试卷一、阅读理解(本大题共15小题,共30.0分)AStone Mountain Basic InformationStone Mountain,Georgia,is the world's largest exposed piece of granite (花岗岩).It is a rock of 7.5 billion cubic feet and it's just a half-hour drive from Atlanta.But it's not just the size of the mountain that attracts people to visit.Stone Mountain's impressive feature is the Confederate Memorial Carving.Three heroes from the Civil War have been carved into the rock:Confederate President Jefferson Davis,General Robert E.Lee,and General Thomas J. "Stonewall" Jackson.The huge sculptures are surrounded by a carved surface that covers three acres.How to VisitStone Mountain can be visited by taking a cable car ride up the north face.Brave tourists can hike along various paths to get closer to the amazing mountain.A visit to the top uncovers rock pools and views of downtown Atlanta that seems close enough to touch.What to VisitLocated just outside the park's west gate is Historic Stone Mountain Village.The village was established in 1839 and offers more than 50 specialty shops and restaurants.Tourists can visit antique (古董)stores as well as shop for art and jewelry created by local artisans. Detailed Visiting InformationAddress:U.S.Highway 78 E.,Exit 8,Stone Mountain,GATelephone:770/498-5690 or 800/401-2407Hours of Operation:Wednesday to Friday from 10:00 am-2:00 pm (due to COVID-19)Admission:﹩8 per car1.What is Stone Mountain most famous for?______A. Its large memorial carving.B. Its unique natural landscape.C. Its having a large piece of granite.D. Its being the hometown of famous heroes.2.What can visitors do at Stone Mountain Park?______A. Hike along downtown Atlanta.B. Go shopping outside its west gate.C. Swim in beautiful swimming pools.D. Learn to make jewels from the locals.3.How much should Mr.Brown pay if he visits the park in two cars with his family of eight______A. ﹩8.B. ﹩16.C. ﹩32.D. ﹩64.BOnce upon a time,when virtual races began on the running scene,I made fun of them. "Why would anyone want to do a virtual race" I wondered. "What's the point?You're still running on your own and I do that all the time."Fast forward to the spring of 2020 when race after race was cancelled,and the goals that we had been going for simply disappeared into thin air.While my devotion to my sport was there,my enthusiasm for training without a foreseeable goal race was not.It wasn't long before I found myself thinking about virtual races."In the same way that we support small businesses," I told my husband Dave, "We need to support the race directors.Racing is their business.And they have been good to me.There are so many races that have helped me become the runner that I am today.The race directors are struggling right now,so supporting them by signing up for a virtual race is the right thing to do." The more I spoke with Dave about this,the more I understood virtual races. "And they help charities,too.Hundreds of charities depend on fundraising from road races.Right now,that isn't happening and charities are being hit financially.So a virtual race helps the race organization and charities.It's a win for both."After knowing the Toronto Women's Virtual 10 k,I registered and ran on the following Saturday.I ran longer than I needed to (11.25 k)and my average pace was slower than my 10 k race pace,but I didn't care.I knew I was supporting a charity.Though I was exhausted,I just wanted to cheer.Race organizations are trying to stay on their feet and,quite frankly,we need them to survive ifwe want to return to racing in a post-pandemic world.Now,more than ever,is the time for runners to come together.4.How did the author react to virtual races at first?______A. She showed great interest.B. She thought poorly of them.C. She approved of them.D. She considered them a great help.5.Why did the author begin to think about virtual races______A. Because she was persuaded by her husband.B. Because she was impressed by the new fashion.C. Because she found no real races to participate in.D. Because she wanted to show her sportsmanship.6.What did the author find out after talking to her husband about virtual races?______A. They were very meaningful.B. They helped all small businesses.C. They had greatly bettered her.D. They were far from popular.7.How did the author most probably feel after running 11.25 k that Saturday______A. Energetic.B. Hopeless.C. Stressed.D. Excited.CA cup of coffee in the morning sets the world's workers right,but a new study shows that tropical forests can regrow much faster when treated with coffee pulp.This was found in a direct case-control study of tropical land in Costa Rica,where scientists from the University of Hawaii (UH)spread 30 truckloads of coffee pulp over a 35 x 40 meter plot of land.They set aside an equal-size plot of the same land just next to it as a control plot. Coffee grounds are naturally acidic,with a pH of less than 5,and therefore aren't always nutritious for some houseplants or decorative flowers.Tropical soil on the otherhand,traditionally containing very poor nutrients,can stand coffee's acidity;is acidic itself,and contains a variety of plants that grow healthily in low pH environments. "Our results show that the quality of soil was greatly improved by the coffee pulp compared to control treatment after 2 years," write the authors in their study led by Dr.Rebecca Cole.Indeed,a report from the British Ecological Society (BES)claimed the area treated withcoffee pulp became a small forest,with 60% greater tree coverage.Its tree coverage reached 4 times as high as that of the non-treated area which mostly remained filled with grasses and weeds.It's an important finding,since coffee is grown mostly in tropical climates,and tropical soil can deal with coffee's acidity.As we know,tropical forests are cut down at rates faster than any others,and tropical forests take in more carbon and contain greater biodiversity than other ones.The authors figure that there are 218000 tons of coffee pulp that must be managed for every one million bags of coffee sent to market.It's a brilliant solution — to enrich tropical land as countries produce a cash crop.It's cheap and local.Moreover,it gives animals more habitat and pulls more carbon from the atmosphere,and best of all,we can keep drinking that lovely cup of coffee.8.How did UH researchers get the result of the study?______A. By analyzing the spread of tropical forests.B. By collecting and studying coffee pulp.C. By comparing two plots of test land.D. By measuring the land size.9.What does the underlined word "it" in Paragraph 3 probably refer to______A. Tropical soil.B. Coffee pulp.C. Coffee's acidity.D. The house plant.10.Why is the BES report mentioned______A. To find out the changes of coffee's acidity.B. To show the importance of tropical forests.C. To stress the uniqueness of tropical soil.D. To prove the effect of coffee pulp.11.What can be inferred from the last paragraph?______A. Coffee is gaining much popularity.B. Tropical land needs to be better used.C. Coffee is a treasure in many aspects.D. Tropical land is suitable for growing coffee.DA total of 74,187 confirmed COVID-19 patients,which account for 91.5 percent of the total infections on the Chinese mainland,have been guided to use traditional Chinese medicine(TCM)as part of their treatment,and over 90 percent of them have shown improvement during clinical observation,according to Yu Yanhong,Party secretary and top official of the National Administration of Traditional Chinese Medicine.TCM has effectively relieved symptoms,cut the rate of patients developing into severe conditions,raised the recovery rate,reduced the death rate and boosted patients' recovery,Yu said.XuanFeiBaiDu Granule can increase the lymphocyte (淋巴细胞)recovery rate by 17 percent and the clinical cure rate by 22 percent in the controlled observation,according to Huang Luqi,an academician of the Chinese Academy of Engineering.Liu Qingquan,head of the Beijing Hospital of Traditional Chinese Medicine,said that two TCM drugs — Jinhua Qinggan Granule and Lianhua Qingwen Capsule/Granule have proven to be effective in the treatment of mild COVID-19 cases,while Xuebijing Injection can help treat inflammation (发炎)and dysfunction in blood.Zhang Boli,an academician of the Chinese Academy of Engineering,said that TCM treatment has significantly lowered the proportion of patients whose conditions turned from mild to severe. "None of the tested 564 patients at the TCM-oriented temporary hospital in Wuhan got worse from a mild state," said Zhang. "We have therefore applied TCM treatment to over 10,000 patients in other temporary hospitals,and the rate of patients developing into severe conditions were substantially reduced," said Zhang.TCM and Western medicine may come from two different medical systems and have different perspectives on health and diseases,but they are both based on the standard of factual clinical efficacy(疗效).The practice of treating COVID-19 patients has proved once again that the precious wisdom left by our TCM ancestors is still practical,effective and economical.We would love to share these valuable experiences and effective treatment methods with all countries.12.Why are XuanFeiBaiDu Granule,Jinhua Qinggan Granule and Lianhua QingwenCapsule/Granule mentioned______A. To prove TCM can treat cancer.B. To prove TCM can ease COVID-19 symptoms.C. To prove TCM can cure all COVID-19 patients.D. To prove TCM is better than Western medicine.13.What does the 5th paragraph imply?______A. The wide TCM treatment was applied after it had been tested first.B. All patients in the temporary hospitals get TCM treatment.C. The condition of the 564 patients remained serious.D. Over 10,000 patients in other temporary hospitals get treated merely by TCM.14.What is the attitude Zhang Boli holds towards TCM?______A. Cautious.B. Positive.C. Negative.D. Indifferent.15.Which is the suitable title for the passage?______A. TCM defeats Western medicine.B. TCM cures COVID-19.C. TCM contributes to fighting COVID-19.D. TCM makes its way to the world.二、阅读七选五(本大题共5小题,共10.0分)Screen time includes all those hours you spend in front of your computer at work,and the time you spend playing with your cell phone or watching TV. (1) According to some research,there are some convincing reasons to make the effort to look at something else other than a screen. It's bad for your health.Being in front of a screen is almost always sedentary (久坐的)behavior,which relates to things like lower fitness levels.Turn this around by choosing something active.You do not have to do exercise at the gym. (2) They can help you keep healthy.It messes up your sleep.When teenagers have more than four hours of screen time per day,and especially when they use their screens before going to bed,they have trouble falling asleep.If you're not sleeping well,it will not only make you feel tired the next day,but it can also affect your performance at work or in school. (3)It hinders (妨碍)your brain's performance. (4) Researchers aren't yet sure why this is true,but it probably has to do with the ways that technology teaches the brain to function.If kids want to perform well in situations that involve memorization or problem solving,limit their screen time.(5) People who spend more time online,especially young people,are more likely to struggle with communication.If interpersonal communication is important to you or part of your job,you will likely get benefits if you spend less time in front of your screen.A.It all adds up.B.Here comes a solution.C.If you should use a screen,try to do just that.D.It's not good for developing communication skills.E.You can take a walk,or work on a project at home.F.Kids do better in school when they have less screen time.G.So it's worth the effort to use your screen less and get more rest.16. A. A B. B C. C D. D E.E F.F G. G17. A. A B. B C. C D. D E.E F.F G. G18. A. A B. B C. C D. D E.E F.F G. G19. A. A B. B C. C D. D E.E F.F G. G20. A. A B. B C. C D. D E.E F.F G. G三、完形填空(本大题共20小题,共30.0分)Brushing my teeth,I heard what sounded like branches scraping (刮擦)the roof.I stopped for a while,(21) what it could be,given that no (22) were close to our house.Then I guessed the sound must be from a branch that was (23) onto our roof by Hurricane Isabel.Then I heard the sound of breaking glass.A second later,the entire house(24).My husband and I stared at each other in frozen horror before rushing to(25) our baby daughter asleep in her bed across the hall.The sound had scared her (26)— never had a cry sounded so sweet.My husband (27) her up and ran to our room.Seeing the falling walls(28) on the floor of our living room,we decided to venture (冒险去)out.My husband started the car (29) I hurried out with our baby to let a neighbor know we were safe.Shaking but happy to be (30),we drove away,heading to a friend's home.The next morning,bright sunlight(31) displayed the storm's destruction.We returned home to see that a giant tree in the centre of our (32) had divided our house into two!As we stood on the sidewalk,the firefighters (33) us that our home had received the worst (34) in the city.In the days and weeks that followed,we remembered the feeling of (35) when we realized thateveryone who (36) in our lives was not injured — me,my husband and our daughter.Yes,we lost many things.But those things were (37) and we can buy later.Every so often we pull out the (38) of the tree's destruction taken when we came back and feel surprised at how (39) we were and still are.We should always be (40) for whatever we have.21. A. wondering B. questioning C. predicting D. accomplishing22. A. gardens B. trees C. farms D. flowers23. A. dropped B. struck C. blown D. placed24. A. removed B. slid C. remained D. shook25. A. contribute to B. check on C. sweep up D. turn over26. A. calm B. absorbed C. alone D. awake27. A. locked B. gave C. lifted D. raised28. A. lying B. hanging C. waiting D. resting29. A. while B. as long as C. even if D. unless30. A. wealthy B. strong C. alive D. smart31. A. basically B. naturally C. typically D. clearly32. A. yard B. car C. house D. room33. A. suggested B. informed C. appointed D. warned34. A. recovery B. disaster C. damage D. treatment35. A. curiosity B. relie f C. concern D. anger36. A. impressed B. appeared C. rejected D. mattered37. A. convenient B. admirable C. replaceable D. limited38. A. note B. photograph C. news D. copy39. A. fortunate B. generous C. optimistic D. considerate40. A. practical B. energetic C. responsible D. grateful四、语法填空(本大题共1小题,共15.0分)41.Have you heard that elephants can paint beautiful artworks,from self-portraits to simplelandscapes It is said that these amazing animals are trained (1) (express)theircreativity through painting.And the money for the artwork (2) (sell)to tourists is used for the elephant protection efforts in Thailand.However,the (3) (true)is quitedepressing.If you visit Thailand,you will see large,heavy easels (画架)set up in busy touristrge cards (4) (place)on the easels and the elephants are directed toward the cards.The mahout (驯象师)then sets a loaded paint brush in the animals' trunk.The elephants continue to paint and the picture is then sold to a tourist. (5) most tourists fail to notice is that the mahout is actually guiding the animal (6) controlling the ear.Holding the ear,the mahout can give directions to draw.Unfortunately,elephant painting is a (7) (high)misleading gimmick (噱头),and money seems to be (8) only motivation since some artworks sell for over one thousand dollars.However,elephant training begins by taking a 3-year-old baby elephant away from its mother, (9) (force)it into a small cage where it is badly treated until its spirit is broken.Once broken,the (10) (emotion)effects last a lifetime.(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)五、短文改错(本大题共1小题,共10.0分)42.短文中共有10 处语言错误,每句中最多有两处。
江西省抚州市临川区第一中学2020-2021学年高二上学期第一次月考英语试题
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江西省抚州市临川区第一中学2020-2021学年高二上学期第一次月考英语试题学校:___________姓名:___________班级:___________考号:___________一、阅读选择Car HireHiring a self-drive car really adds to the enjoyment of your holiday.There are so many places of interest to visit, and if you enjoy seeing more than just the city center there’s no better way to explore than by car.Hire Charges:What’s includeda) Unlimited mileage(英里数).b) Expenses on oil,maintenance and repairs,which will be repaid on production of invoices.c) Full insurance except personal accident (see below).What’s not includeda) Personal accident insurance.b) Garaging, petrol, parking and traffic fines.Conditions of Hire:★The shortest rental period at these special low prices is three days.For prices for periods of one or two days you only see our representative at the hotel.★Car hire must be booked six weeks or more before arrival in London to guarantee a car.But if you have been unable to make a booking in advance please see our representative at the hotel who may still be able to help you.★The car types on the sheet are examples of the types of cars in each price range,but particular car cannot be guaranteed.★Upon delivery the driver (s) will be asked to sigh the car hire company’s Condition of Hire.★If you decide to hire a car,just fill in the Booking Form and return it to us.A booking fee of £ 12 as part of the car hire cost is required.Should you be forced to cancel your car hire booking after payment in full (two weeks before date of hire),a cancellation charge of £ 12 will be made.1.From the advertisement, if an accident happens, a car hirer will pay . A.insurance against damage to the carB.the cost of maintenance of the carC.insurance against injury to the driverD.the cost of repairs to the car2.If car hirers change their minds after paying the whole cost of hiring,the £ 12 booking fee is .A.not returned B.doubly paidC.partly returned D.returned within six weeks3.The prices for car hire are especially low when .A.it is booked two weeks in advance B.it is booked for at least three daysC.it is booked for two days D.the booking is made in LondonThe full moon climbs over the eastern horizon (地平线) and hangs like a huge orange globe in the sky. A few hours later, the moon is overhead but seems to have changed. The huge orange globe has become a small silver disk. What has happened? Why has the orange color disappeared? Why does the moon seem so much smaller and farther away now that it is overhead?The moon appears orange on the horizon because we view it through the dust of the atmosphere. The overhead moon does not really shrink (缩小) as it moves away from the horizon. Our eyes inform us that the overhead moon is farther away. But in this position the moon is actually closer to our eyes than when it is near the horizon.The change in size is a trick our eyes and minds play on us. When the moon is low in the sky, we can compare its size with familiar objects. It is easy to see that the moon is much larger than trees or buildings, for example. When the moon is high in the sky, however, it is hard to compare it with objects on earth. Compared to the vastness of the sky, the moon seems small.There is another reason why the moon seems to shrink. We are used to staring at objects straight ahead of us. When an object is difficult to see, our eyes have to try to focus on it. When we move our heads back to look up, we will try hard again. Looking at something from an unaccustomed position can fool you into believing an object is smaller or farther away than it is. However, scientists do not yet understand completely why the moon seems to shrink as it rises in the sky.4.What makes us puzzled when the moon is high in the sky?A.It becomes large.B.It looks different.C.Its color disappears.D.Its shape changes.5.What really happens when the moon floats farther away from the horizon?A.It comes nearer.B.It turns orange.C.It goes farther.D.It gets through dust.6.What does the author intend to suggest by mentioning trees and buildings in Para. 3? A.They can affect our judgment.B.They are low on earth.C.They can attract our attention.D.They are large objects.7.What can we infer from the text?A.The size of the moon often changes.B.The moon is in fact a huge orange globe.C.The moon is beginning to shrink much.D.We do not see the moon as it really is.Would it surprise you to learn that, like animals, trees communicate with each other and pass on their wealth to the next generation?UBC Professor Simard explains how trees are much more complex than most of us ever imagined.Although Charles Darwin thought that trees are competing for survival of the fittest, Simard shows just how wrong he was. In fact, the opposite is true: trees survive through their co-operation and support, passing around necess ary nutrition “depending on who needs it”.Nitrogen (氮) and carbon are shared through miles of underground fungi (真菌) networks, making sure that all trees in the forest ecological system give and receive just the right amount to keep them all healthy. This hidden system works in a very similar way to the networks of neurons (神经元) in our brains, and when one tree is destroyed, it affects all.Simard talks about “mother trees”, usually the largest and oldest plants on which all other trees depend. She explains how dying trees pass on the wealth to the next generation, transporting important minerals to young trees so they may continue to grow. When humans cut down “mother trees” with no awareness of these highly complex “tree societies” or the networks on which they feed, we are reducing the chances of survival for the entire forest.“We didn’t take any notice of it,” Simard says sadly. “Dying trees move nutrition into the young trees before dying, but we never give them chance.” If we could put across the mess age to the forestry industry, we could make a huge difference towards our environmental protection efforts for the future.8.The underlined sentence “the opposite is true” in Paragraph 3 probably means that trees ________.A.depend on each other B.protect their own wealth C.compete for survival D.provide support for dying trees 9.“Mother trees” are extremely important because they________.A.know more about the complex “tree societies”B.seem more likely to be cut down by humansC.look the largest in size in the forestD.pass on nutrition to young trees10.The underlined word “it” in the last paragraph refers to ________.A.how young trees survive B.how “tree societies” workC.how forestry industry develops D.how trees grow old11.What would be the best title for the passage?A.Old Trees Communicate Like HumansB.Young Trees Are in Need of ProtectionC.Trees Are More Fantastic Than You ThinkD.Trees Contribute to Our SocietyA few years ago, I took a sightseeing trip to Washington, D.C standing outside the Ronald Reagan Center, I heard a voice, “Can you help me?” When I turned around, I saw an elderly blind woman with her hand extended. I reached into my pocket, pulled out all of my loose change and placed it on her hand without even looking at her. I was annoyed at being bothered by a beggar. But the blind woman smiled and said, “I don’t want your money. I justwant you to help me find the post office.”In a moment, I realized what I had done. I judged another person simply for what I guessed she had to be. I hated what I saw in myself. This incident reawakened my belief in humility(谦恭),even though I’d lost it for a moment.The thing I had forgotten about myself is that I am an immigrant. I left Honduras and arrived in the US at the age of 15. I started my new life with two suitcases, my brother and sister, and a strong, serious-minded mother. Through the years, I have been a dishwasher, mechanic and pizza delivery driver among many other humble jobs, and finally I became a network engineer.In my own life, I have experienced many open acts of prejudice(偏见). I remember a time, at the age of 17, I worked as a waiter, and I heard a father tell his little boy that if he did not do well in school, he would end up like me. I have also witnessed the same treatment of my family and friends, so I know what it’s like, and I should have known better.But now, living in my American middle-class lifestyle, it is too easy to forget my past, to forget who I am and where I have been, and to lose sight of where I want to be going. That blind woman on the street of Washington, D.C.cured me of my blindness. She reminded me of my belief in humility to always keep my eyes and heart open. By the way, I helped that lady to the post office. And in writing this article, I hope to thank her for the priceless lesson. 12.What can we learn from the first two paragraphs?A.The author was as poor as the blind woman.B.The blind woman needed the money badly.C.The author regretted his act of prejudice.D.The author was a native American13.According to Paragraph 4, hearing the father’s words, the author was probably . A.rather hurt B.deeply movedC.greatly inspired D.very excited14.Which opinion does the author probably agree with?A.One should try to experience different kinds of life.B.One should think about one’s past as often as possible.C.One should treat others equally with love and respectD.One should be nice to the elderly and the disabled.15.What can be the best title of the passage?A.How my dream comes true B.A priceless lesson on the streetC.A belief that will never change D.Learn from your past二、七选五Traveling is a very enjoyable experience as it provides an opportunity to see new things. 16.The following article discusses the advantages of traveling.17.People all have crazy schedules, work and a family to take care of, and traveling alone or with some friends can give you distance and perhaps even make you realize how important these people are to you.As the saying goes, you never know what you have until you lose it.Another great benefit is the relaxation you get. 18.When you come back you feel energetic and you are happy to be back to your daily routine.19.They will create a bond that nothing can erase no matter what happens to the friendship. You can create photo albums and when you feel nostalgic (怀旧的) you can experience the trips again by looking at your pictures.It’s never been this cheap to travel. With increasing oil prices, the cheap travel era might be coming to an end.20.With the Internet and all the new technology, you can plan your trip exactly the way you want it. You can choose your budget, the duration of the trip and what you want to do.A.It’s nice to enjoy a stress-free time.B.Traveling gives you the opportunity to disconnect from your regular life.C.When traveling with friends or family it creates memories of a lifetime.D.Going on a trip means that you are most likely going to spend time outside.E.Discovering different values and ways to get by in life is really interesting.F.However, there are still many budget airlines fighting for your dollar right now.G.There are many benefits other than enjoying yourself that can be realized when you travel.三、完形填空When I was just out of college, I managed to get my dream job as a trader in New York City on the floor of the American Stock(股票)exchange.Though it was a proud 21 ,the job was simply too physically 22 —I must stand in a crowd every day, which often 23 me in a mindset(心态)that held me back.Manhattan is a walking town and it's difficult to 24 when you have a disability.Taxis are expensive and riding the subway 25 dozens of steep steps to get below26 .This left me only one 27 —the bus.One night, after the 28 for my job, I was aching with self-pity 29 it started to rain on my walk to the bus stop. I became more and more 30 without an umbrella, thinking I’d never31 it in this city. Telling myself, "this city is just too hard" and "maybe it is just not possible for a guy like me".And then, I 32 the most beautiful, short moment. A couple came rolling by on roller skates, hand 33 hand as they skated what seemed like the tango. They were all wet but they saw the 34 as an opportunity and romance.I suddenly became grateful for waiting in the rain because I 35 have missed this beauty 36 if I had been in a taxi or on the subway. This, although 37 , was an important moment on my journey to discovering the 38 of achieving health and happiness. When I change my mindset, 39 for a moment, to what is possible and work to get rid of the self-limiting beliefs that 40 my daily actions, I will be on the road to a healthier, happier life.21.A.adjustment B.achievement C.agreement D.treatment 22.A.tiring B.boring C.relaxing D.disappointing 23.A.reminded B.expected C.took D.left 24.A.go up B.get around C.set off D.show up 25.A.requests B.supports C.requires D.surrounds 26.A.ground B.street C.town D.city 27.A.change B.chance C.idea D.choice 28.A.struggle B.work C.experience D.influence 29.A.before B.while C.when D.after 30.A.nervous B.curious C.scared D.upset 31.A.get B.make C.put D.watch 32.A.recalled B.observed C.witnessed D.realized 33.A.on B.by C.to D.in 34.A.rain B.tree C.wind D.cloud 35.A.shall B.would C.need D.must 36.A.exactly B.instantly C.entirely D.suddenly 37.A.strange B.small C.normal D.different38.A.humor B.honest C.power D.principle 39.A.still B.yet C.also D.even 40.A.affect B.follow C.forbid D.harm四、用单词的适当形式完成短文阅读下面材料,在空白处填入适当的内容(1个单词) 或括号内单词的正确形式。
江西省临川第一中学、临川一中实验学校2019-2020学年高二上学期期中考试数学(理)试题(含答案)
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江西省临川第一中学、临川一中实验学校 2019-2020学年高二上学期期中考试数学(理)试题一、选择题(本大题共12小题)1.设x ∈R ,则“250x x -<”是“|1|1x -<”的( ) A. 充分而不必要条件 B. 必要而不充分条件 C. 充要条件D. 既不充分也不必要条件 【答案】B 【解析】 【分析】分别求出两不等式的解集,根据两解集的包含关系确定. 【详解】化简不等式,可知 05x <<推不出11x -<; 由11x -<能推出05x <<,故“250x x -<”是“|1|1x -<”的必要不充分条件, 故选B 。
【点睛】本题考查充分必要条件,解题关键是化简不等式,由集合的关系来判断条件。
2.已知(1,2,)a y =-r ,(,1,2)b x =r ,且(2)//(2)a b a b +-r rr r ,则A. 1,13x y ==B. 1,42x y ==- C. 12,4x y ==-D.1,1x y ==-【答案】B 【解析】本题考查空间向量坐标的运算,空间向量共线.因为(1,2,),(,1,2),2(12,4,4),a y b x a b x y =-=∴+=+-+r r r r 2(2,3,22);a b x y -=---rr 因为(2)//(2)a b a b +-r rr r ,所以12(2){434(22)x x y y λλλ+=-=⨯-+=--,解得41,, 4.32x y λ===-故选B3.已知椭圆C :22143x y +=,直线l :x +my -m 3m ∈R ),l 与C 的公共点个数为( )A. 0个B. 1个C. 2个D. 0或1或2【答案】D 【解析】 【分析】判断直线系经过的定点与椭圆的位置关系,然后判断公共点的个数. 【详解】解:直线l :x +my -m 3(m ∈R ),31),31)在椭圆C :22143x y +=的外面,所以直线l :x +my -m 3(m ∈R )与C 的公共点个数可能为0或1或2. 故选:D .【点睛】本题考查直线与椭圆的位置关系的应用,是基本知识的考查,基础题.4.已知A,B,C 三点不共线,对于平面ABC 外的任一点O,下列条件中能确定点M 与点A,B,C 一定共面的是( )A. OM OA OB OC =++u u u u r u u u r u u u r u u u rB. 2OM OA OB OC =--u u u u r u u u r u u u r u u u rC. 1123OM OA OB OC =++u u u u r u u u r u u u r u u u rD. 111236OM OA OB OC =++u u u u r u u u r u u u r u u u r【答案】D 【解析】 【分析】根据点M 与点,,A B C 共面,可得1x y z ++=,验证选项,即可得到答案.【详解】设OM xOA yOB zOC =++u u u u v u u u v u u u v u u u v,若点M 与点,,A B C 共面,,则1x y z ++=,只有选项D 满足,.故选D.【点睛】本题主要考查了向量的共面定理的应用,其中熟记点M 与点,,A B C 共面时,且OM xOA yOB zOC =++u u u u v u u u v u u u v u u u v,则1x y z ++=是解答的关键,着重考查了分析问题和解答问题的能力.5.已知拋物线x 2=ay 的焦点恰好为双曲线2223y x -=的上焦点,则a =( )A. 4B. 82C. 8D. 8-【答案】B 【解析】 【分析】利用抛物线的方程及双曲线的方程求出抛物线的焦点坐标和双曲线的焦点坐标,列出方程求出a .【详解】解:抛物线x 2=ay (a >0)的焦点为(0,4a), 双曲线2223y x -=的焦点为(02),∵a >0, ∴4a2, ∴a 2. 故选:B .【点睛】本题考查由圆锥曲线的方程求圆锥曲线中的参数、圆锥曲线的共同特征等基础知识,考查运算求解能力,考查数形结合思想,属于基本知识的考查.6.已知()()11a cos sin b sin cos αααα==-r r ,,,,,,则向量a b +rr 与a b-r r 的夹角是( ) A. 90︒ B. 60︒C. 30︒D. 0︒【答案】A 【解析】 【分析】根据向量a b r r ,的坐标即可求出22a b =r r ,从而得出()()0a b a b +⋅-=r r r r ,这样即可得出a b+r r 与a b -rr的夹角.【详解】解:22212a cos sin αα=++=r ,22212b sin cos αα=++=r ,∴()()220a b a b a b +⋅-=-=r r r r r r ,∴()()a b a b +⊥-r r r r ,∴a b +rr 与a b -r r 的夹角为90°.故选:A .【点睛】本题考查了空间向量数量积的坐标运算,向量垂直的充要条件,向量夹角的定义,考查了计算能力,属于基础题. 7.下列命题正确的是(1)命题“x R ∀∈,20x >”的否定是“0x R ∃∈,020x ≤”; (2)l 为直线,α,β为两个不同的平面,若l β⊥,αβ⊥,则//l α; (3)给定命题p ,q ,若“p q ∧为真命题”,则p ⌝是假命题; (4)“1sin 2α=”是“6πα=”的充分不必要条件. A. (1)(4) B. (2)(3)C. (3)(4)D. (1)(3)【答案】D 【解析】 【分析】逐个命题进行判定,对于(1)结合全称命题的否定方法可以判定;对于(2)要考虑全面直线与平面的位置关系;对于(3)根据复合命题的真假进行判断;对于(4)利用56πα=可以判定.【详解】对于(1)“x R ∀∈,20x >”的否定就是“0x R ∃∈,020x ≤”,正确; 对于(2)直线l 可能在平面α内,所以不能得出//l α,故不正确;对于(3)若“p q ∧为真命题”则,p q 均为真命题,故p ⌝是假命题,正确; 对于(4)因为6πα=时可得1sin 2α=,反之1sin 2α=不能得出6πα=,故“1sin 2α=”是“6πα=”的必要不充分条件,故不正确.故选D.【点睛】本题主要考查简易逻辑,涉及知识点较多,要逐一判定,最后得出结论.题目属于知识拼盘.8.已知命题p :“关于x 的方程240x x a -+=有实根”,若p ⌝为真命题的充分不必要条件为31a m >+,则实数m 的取值范围是( ) A. [)1,+∞ B. ()1,+?C. (),1-∞D. (],1-∞【答案】B 【解析】命题p :4a ≤,p ⌝为4a >,又p ⌝为真命题的充分不必要条件为31a m >+,故3141m m +>⇒>9.在棱长为2的正方体ABCD -A 1B 1C 1D 1中,动点P 在ABCD 内,且到直线AA 1,BB 1的距离之和等于23则△PAB 的面积最大值是( )2 B. 12D. 2【答案】C 【解析】 【分析】先确定动点P 的轨迹方程,根据动点P 的轨迹方程可知:△PAB 的AB 边上的高,当PA =PB 时最大,这时PA =PB 3PAB 的面积最大值. 【详解】解:∵AA 1和BB 1都⊥面ABCD , ∴P 到直线AA 1,BB 1的距离就是PA 和PB ,∴PA +PB 3所以动点P 的轨迹是以A,B 为焦点的椭圆,由椭圆的性质可知: ∵△PAB 的AB 边上的高,当PA =PB 时最大,这时PA =PB 3最大的高2214PA AB -2, ∴最大面积=1222. 故选:C .【点睛】本题考查△PAB 的面积最大值,考查点到直线距离的计算,属于中档题.10.设椭圆C :22x a +22y b=1(a >b >0)的左、右焦点分别为F 1、F 2,其焦距为2c ,点Q (c ,2a )在椭圆的外部,点P 是椭圆C 上的动点,且11232PF PQ F F +<恒成立,则椭圆离心率的取值范围是( )A. 25,26⎛⎫ ⎪ ⎪⎝⎭B. 2324⎛⎫⎪ ⎪⎝⎭C. 5,16⎛⎫⎪⎝⎭D. 3,14⎛⎫⎪⎝⎭【答案】C 【解析】 【分析】 由Q (c ,2a)在椭圆的外部,求出a ,b 的范围,又根据|PF 1|+|PQ |=2a +|PQ |-|PF 2|≤2a +|QF 2|,求出a ,c 的范围,代入即可.【详解】解:点Q (c ,2a )在椭圆的外部,所以22a b a>,即a 2>2b 2,所以e 22212b a ->,由11232PF PQ F F +<恒成立, |PF 1|+|PQ |=2a +|PQ |-|PF 2|≤2a +|QF 2|=2a +522a a =<3c ,即a <65c , 所以56c e a =>.又e <1, 故选:C .【点睛】考查椭圆中的恒成立问题,几何法求出a ,b ,c 的关系,属于中档题.11.设点P 是双曲线22x a -22y b =1(a ,b >0)上异于实轴端点上的任意一点,F 1,F 2分别是其左右焦点,O 为中心,2212||4b PF PF OP -=,则此双曲线的离心率为( )21 23D. 3【答案】A 【解析】 【分析】由余弦定理可得22211112PF PO OF PF OF =+-⋅cos∠POF 1,22222222PF PO OF OP OF cos POF =+-⋅∠.结合2212||4b PF PF OP -=可得2212122PF PF PF PF +-=2c 222b -.利用PF 2-PF 1=2a .即可求解.【详解】解:如图,22211112PF PO OF PF OF =+-⋅cos∠POF 1…①22222222PF PO OF OP OF cos POF =+-⋅∠…②①+②可得22221222PF PF c OP +=+…③又2212||4b PF PF OP -=…④由③④可得2212122PF PF PF PF +-=2222b c -.∵PF 2-PF 1=2a .∴4a 2=2c 2-22b ⇒3c 2=7a 2, e =c a 21 故选:A .【点睛】本题考查了双曲线的离心率,考查了余弦定理及运算能力,考查了转化思想,属于中档题. 12.如图,∠C =2π,3AC BC =,M ,N 分别是BC ,AB 中点,将△BMN 沿直线MN 折起,使二面角B'-MN-B的大小为3π,则B'N与平面ABC所成角的正切值是()2B.453915【答案】C【解析】【分析】由∠C=2π,3AC BC=,先得到∠B′ND就为斜线B′N与平面ABC所成的角设为α,设BC=2,AC=3,BM=B'M=1,DM=B'M cos60°=12,B'D=B'M sin60°=3,又MN=3,所以DN22132DM MN+=,所以tanα='B DDN,解出即可.【详解】解:∵∠C=2π,3AC BC=,M、N分别是BC、AB的中点,将△BMN沿直线MN折起,使二面角B′-MN-B的大小为3π.∴∠BMB′=3π,取BM的中点D,连B′D,ND,由于折叠之前BM与CM都始终垂直于MN,这在折叠之后仍然成立,∴折叠之后平面B′MN与平面BMN所成的二面角即为∠B′MD=60°,并且B′在底面ACB内的投影点D就在BC上,∴B′D⊥BC,B′D⊥AD,B′D⊥面ABC,∴∠B′ND就为斜线B′N与平面ABC所成的角设为α,设BC=2,AC=23BM=B'M=1,DM=B'M cos60°=12,B'D=B'M3又MN3,所以DN2213DM MN+=,所以tanα='B DDN31339.故选:C.【点睛】考查二面角的平面角,线面角等内容,综合性较高,中档题. 二、填空题(本大题共4小题)13.命题“已知不共线向量1e u r ,2e u u r ,若120e e λμ+=u r u u r r,则λ=μ=0”的等价命题为______. 【答案】“已知不共线向量1e u r ,2e u u r ,若λ≠0或μ≠0,则120e e λμ+≠u r u u r r”.【解析】 【分析】直接利用原命题的逆否命题的应用求出结果.【详解】解:已知不共线向量1e u r ,2e u u r ,若120e e λμ+=u r u u r r,则λ=μ=0”的等价命题为:“已知不共线向量1e u r ,2e u u r ,若λ≠0或μ≠0,则120e e λμ+≠u r u u r r”.故答案为:“已知不共线向量1e u r ,2e u u r ,若λ≠0或μ≠0,则120e e λμ+≠u r u u r r”.【点睛】本题考查的知识要点:简易逻辑中等价命题的应用,主要考查学生的运算能力和转换能力及思维能力,属于基础题型.14.在空间四边形ABCD 中,连接AC 、BD ,若V BCD 是正三角形,且E 为其中心,则1322AB BC DE AD +--u u u v u u u v u u u v u u u v的化简结果为________.【答案】0 【解析】 【分析】由题意结合重心的性质和平面向量的三角形法则整理计算即可求得最终结果.【详解】如图,取BC 的中点F ,连结DF ,则23DF DE =u u u vu u uv , ∴1322AB BC DE AD +--u u u v u u u v u u u v u u u v AB BF DF DA =+-+u u u v u u u v u u u v u u u v AF FD DA u u u v u u u v u u u v =++0=r .【点睛】本题主要考查空间向量的运算法则及其应用,意在考查学生的转化能力和计算求解能力.15.已知p :x 2-x ≥6或x 2-x ≤-6,q :x ∈Z .若“p 且q ”与“非q ”同时为假命题,则x 的值的集合为______. 【答案】{-1,0,1,2} 【解析】 【分析】“p 且q ”与“非q ”同时为假命题,则p 为假命题,q 为真命题,等价成关于x 的不等式组,即可得到x 的值的集合.【详解】解:依题意,若“p 且q ”与“非q ”同时为假命题, 则p 为假命题,q 为真命题,所以266x x x Z ⎧-<-<⎨∈⎩,解得-2<x <3且x ∈Z ,所以x 的值的集合为{-1,0,1,2}. 故答案为:{-1,0,1,2}.【点睛】本题考查了复合命题的真假,考查了不等式的解法,主要考查了逻辑推理能力和计算能力,属于基础题.16.已知过抛物线y 2=-4x 的焦点F ,3的直线与抛物线交于A 、B 两点,则AF BF AB⋅=______.【答案】1 【解析】 【分析】求得抛物线的焦点坐标和准线方程,以及直线方程,联立抛物线方程,解方程求得A ,B 的横坐标,再由抛物线的定义可得|AF |,|BF |,|AB |,计算可得所求值. 【详解】解:抛物线y 2=-4x 的焦点F (-1,0),准线方程为x =1,过F且斜率为3的直线方程为y =3(x+1), 代入抛物线方程y2=-4x,可得3x2+10x+3=0,解得x=-3或x=-13,由抛物线的定义可得|AF|=1+3=4,|BF|=1+13=43,|AB|=2-(-3-13)=163,则AF BFAB⋅=443163⨯=1.故答案为:1.【点睛】本题考查抛物线的定义和方程的应用,考查直线和抛物线方程联立,求交点,考查方程思想和运算能力,属于基础题.三、解答题(本大题共6小题)17.已知p:方程221231x yk k-=++表示双曲线,q:斜率为k的直线l过定点P(-2,1)且与抛物线y2=4x有两个不同的公共点.若p∧q是真命题,求实数k的取值范围.【答案】11,00,32⎛⎫⎛⎫-⎪ ⎪⎝⎭⎝⎭U【解析】【分析】由题意,先求得当命题,p q都为真命题时,实数k的取值范围,再根据p q∧为真命题,列出不等式组,即可求解答案.【详解】若方程-=1表示双曲线,则(2+k)(3k+1)>0,解得k<-2或k>-.由题意,设直线l的方程为y-1=k(x+2),即y=kx+2k+1,联立方程消去x并整理得ky2-4y+4(2k+1)=0,要使直线l与抛物线y2=4x有两个不同的公共点,则需满足解得-1<k<且k≠0.若p∧q是真命题,则所以k的取值范围是∪.【点睛】本题主要考查了命题的真假判定及应用,以及复合命题的真假判定与应用,其中解答中正确求解命题,p q都为真命题时,实数k的取值范围,再根据复合命题的真假,列出不等式组是解答的关键,着重考查了推理与运算能力,属于基础题.18.如图,四棱锥S-ABCD的底面是边长为1的正方形,则棱SB垂直于底面.(1)求证:平面SBD⊥平面SAC;(2)若SA与平面SCD所成角的正弦值为25,求SB的长.【答案】(1)证明见解析;(2) 2或12.【解析】【分析】(1)连结AC,BD,证明AC⊥BD,AC⊥SB,得出AC⊥面SBD,即可证明平面SAC⊥平面SBD;(2)将四棱锥补成正四棱柱ABCD-A′SC′D′,连结A′D,作AE⊥A′D于E,连结SE,证明AE⊥面SCD,得出∠ASE为SA与平面SCD所成角的平面角,利用直角三角形的边角关系求出SB的长.【详解】(1)证明:连结AC,BD,如图所示;∵四边形ABCD是正方形,∴AC⊥BD,∵SB⊥底面ABCD,∴AC⊥SB,∴AC⊥面SBD,又由AC⊂面SAC,∴面SAC⊥面SBD.(2)解:将四棱锥补成正四棱柱ABCD -A ′SC ′D ′, 连结A ′D ,作AE ⊥A ′D 于E ,连结SE ,如图所示;由SA ′∥CD ,知平面SCD 即为平面SCDA ′, ∵CD ⊥侧面ADD ′A ′,∴CD ⊥AE , 又AE ⊥A ′D ,∴AE ⊥面SCD ,∴∠ASE 即为SA 与平面SCD 所成角的平面角, 设SB =x ,在直角△ABS 中,由勾股定理得SA 21x +; 在直角△SAE 中,AE SA =25,得AE 2215x + 直角△DAA ′中,A ′D •AE =AD •AA ′, 21x +2215x +x ; 解得x =2或x =12; ∴SB 的长为2或12. 【点睛】本题考查了空间中的垂直关系证明问题,也考查了直线与平面所成的角计算问题,是中档题.19.设命题p :函数f (x )=lg (ax 2-x +16a )的定义域为R ;命题q :不等式3x -9x<a 对任意x ∈R 恒成立.(1)如果p 是真命题,求实数a 的取值范围;(2)如果命题“p 或q ”为真命题且“p 且q ”为假命题,求实数a 的取值范围.【答案】(1)18a>.(2)1184a<≤.【解析】【分析】(1)命题p是真命题,有a>0,△<0,即求解即可.(2)命题q是真命题,不等式3x-9x<a对一切x∈R均成立,设y=3x-9x,令t=3x>0,则y=t-t2,t >0,通过函数的最值求解a的范围,利用复合命题的真假关系求解即可.【详解】解:(1)命题p是真命题,则ax2-x+16a>0恒成立,得到a>0,△=1-64a2<0,即a>1 8 ,或a18<(舍去),所以a的取值范围为18a>.(2)命题q是真命题,不等式3x-9x<a对一切x∈R均成立, 设y=3x-9x,令t=3x>0,则y=t-t2,t>0,当12t=时,111244maxy=-=,所以14a>.命题“p∨q”为真命题,“p∧q”为假命题,则p,q一真一假.即有1184a≤<或a∈∅,综上,实数a的取值范围11 84a<≤.【点睛】本题考查命题的真假的判断与应用,换元法以及二次函数的性质的应用,是基本知识的考查.20.如图所示,曲线C由部分椭圆C1:+=1(a>b>0,y≥0)和部分抛物线C2:y=-x2+1(y≤0)连接而成,C1与C2的公共点为A,B,其中C1所在椭圆的离心率为.(1)求a,b的值;(2)过点B的直线l与C1,C2分别交于点P,Q(P,Q,A,B中任意两点均不重合),若AP⊥AQ,求直线l的方程.【答案】(1),;(2).【解析】试题分析:(1)结合图形在中,令,得,再联立,可得,,;(2)由题易得点,,由题知直线与轴不重合也不垂直,可设其方程为(),联立的方程,整理得,解得点的坐标为,结合图形知,再将代入的方程,得点的坐标为,再由,即得,求得方程.试题解析:(1)在C 2的方程中令y =0可得b =1,由=及a 2-c 2=b 2=1得a =,∴a=,b =1.(2)由(1)知,上半椭圆C 1的方程为y 2+2x 2=2(y≥0).易知,直线l 与x 轴不重合也不垂直,设其方程为x="my+1" (m≠0),并将其代入C 1的方程, 整理得(2m 2+1)+4my =0,故可解得点P 的坐标为,显然,m<0,同理,将x="my+1" (m≠0)代入C 2的方程,整理得m 2y 2+y+2my =0,得点Q 的坐标为.∵AP⊥AQ,∴=0,即8m 2+2m =0,解得m =-,符合m<0,故直线l 的方程为4x+y -4=0.考点:1、椭圆及其标准方程,离心率;2、抛物线;3、直线与圆锥曲线的位置关系. 【思路点晴】本题主要考查椭圆的标准方程及直线与圆锥曲线的位置关系,其中第一问求的值属于容易题,在求得点的坐标后,即可得出的值,再结合的关系容易求出的值;第二问求直线方程,主要考查直线与圆锥曲线的位置关系,属于难题,由于过轴上一定,可设其方程为,以便于联立与消元,简化计算过程,从而可推出的坐标,再利用便可得出,进而求出直线的方程.21.如图,直线AQ ⊥平面α,直线AQ ⊥平行四边形,四棱锥的顶点P在平面α上,7AB =,3AD =,AD DB ⊥,,//,2AC BD O OP AQ AQ ⋂==,,M N分别是AQ 与CD 的中点.(1)求证://MN 平面QBC ; (2)求二面角M CB Q --的余弦值. 【答案】(1)见解析;(2310【解析】 【分析】(1)连接,OM ON ,由题意可证得平面//OMN 平面QBC ,利用面面平行的性质定理可得//MN 平面QBC ;(2)过D 作//DZ OP ,以,,DA DB DZ 所在直线分别为,,x y z 轴建立空间直角坐标系,由题意可得平面MCB 的法向量为()10,1,2n =-u v ,平面QCB 的法向量为()20,1,1n =-u u v,据此计算可得二面角M CB Q --的平面角θ的余弦310cos θ=. 【详解】(1)连接,OM ON ,底面ABCD 为平行四边形,Q N 是CD 的中点,O 是BD 的中点,∴ //ON BC , Q M 是AQ 的中点,O 是AC 的中点,∴ //OM QC ,ON OM O ⋂=,BC QC C ⋂=,∴平面//OMN 平面QBC , MN ⊆平面OMN ,∴ //MN 平面QBC ;(2)由AQ ⊥平面α,AQ ⊥平行四边形ABCD ,∴平面//α底面ABCD ,//OP AQ , 2OP AQ ==,∴四边形PQAO 为矩形,且PO ⊥底面ABCD ,AD DB ⊥,过D 作//DZ OP ,以,,DA DB DZ 所在直线分别为,,x y z 轴建立空间直角坐标系(如图), 由7AB =,3AD =,AD DB ⊥,知2DB =,∴ 000D (,,)、300A (,,) 、301M -(,,)、302N -(,,)、020B (,,)、320C -(,,), ∴ 321MB =-u u u v (,,)、300CB DA ==u u u v u u u v (,,)、322QB =-u u u v (,,),设平面MCB 的法向量为()1111,,n x y z =u v,则1111113+2+030n MB x y z n CB x ⎧⋅==⎪⎨⋅==⎪⎩u v u u u v u v u u u v , 取11y =-,12z =,10x =,即()10,1,2n =-u v,设平面QCB 的法向量为()2222,,n x y z u u v=则2222223+2+2030n QB x y z n CB x ⎧⋅==⎪⎨⋅==⎪⎩u u v u u u v u u v u u , 取21y =-,21z =,20x =,即()20,1,1n =-u u v,∴二面角M CB Q --的平面角θ的余弦12120,1,20,1,152n n cos n n θ--⋅==⋅⋅u v u u vu v u u v 310=.【点睛】本题考查了立体几何中的判断定理和二面角的求解问题,意在考查学生的空间想象能力和逻辑推理能力;解答本题关键在于能利用直线与直线、直线与平面、平面与平面关系的相互转化,通过严密推理,明确角的构成.同时对于立体几何中角的计算问题,往往可以利用空间向量法,通过求解平面的法向量,利用向量的夹角公式求解.22.已知△ABC 中,B (-1,0),C (1,0),AB =6,点P 在AB 上,且∠BAC =∠PCA . (1)求点P 的轨迹E 的方程;(2)若813Q ⎛⎫⎪⎝⎭,,过点C 的直线与E 交于M ,N 两点,与直线x =9交于点K ,记QM ,QN ,QK 的斜率分别为k 1,k 2,k 3,试探究k 1,k 2,k 3的关系,并证明.【答案】(1)()221398x y x +=≠±.(2) k 1+k 2=2k 3证明见解析;【解析】 【分析】(1)利用已知条件判断P 的轨迹为椭圆,转化求解即可.(2)如图,设M (x 1,y 1),N (x 2,y 2),可设直线MN 方程为y =k (x -1),则K (4,3k ),联立直线与椭圆方程,通过韦达定理转化求解斜率关系,证明k 1+k 2=2k 3. 【详解】解:(1)如图三角形ACP 中,∠BAC =∠PCA ,所以PA =PC , 所以PB +PC =PB +PA =AB =6,所以点P 轨迹是以B ,C 为焦点,长轴为4的椭圆(不包含实轴的端点),所以点P 的轨迹E 的方程为()221398x y x +=≠±.(2)k 1,k 2,k 3的关系:k 1+k 2=2k 3.证明:如图,设M (x 1,y 1),N (x 2,y 2), 可设直线MN 方程为y =k (x -1),则K (4,3k ),由()221981x y y k x ⎧+=⎪⎨⎪=-⎩,,可得(9k 2+8)x 2-18k 2x +(9k 2-72)=0, 21221898k x x k +=+,212297298k x x k -=+, ()()1111118818331131y k x k k x x x ---===----, ()22831k k x =--,38813913k k k -==--, 因为()()()()121323121212228112803311331x x k k k k x x x x x x +-⎛⎫-+-=-+=-⋅= ⎪---++⎝⎭, 所以:k 1+k 2=2k 3.【点睛】本题考查直线与椭圆的位置关系的综合应用,椭圆的定义的应用,考查转化思想以及计算能力,是难题.。
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临川一中暨临川一中实验学校2020-2021学年上学期期中考试
高二英语试卷★答案★
听力理解
1—5 ABCAC 6—10BBCAC 11—15 ACCAB 16—20CBABA
阅读理解
21—23 CDB 24—27 DCAB 28—31 DACB 32—35 CADC
36—40 BDCGF
完形填空
41—45 ACDDB 46—50 ACBAD 51—55 ABACD 56—60 BAACC
语法填空
mitments 62.by 63.to stop 64.the 65.what
66. disposal 67.various 68 .has encouraged 69.attracting 70. less
短文改错
71.第一句删掉to 72.第二句How改为What 73.第三句deep前加a
74. 第三句have 改为has 75. 第五句when改为while
76.第六句doubts改为doubt 77. 第七句take改为taking
78. 第九句Similar改为Similarly 79. 第十句important改为importance
80. 第十一句but改为and
书面表达
In order to enrich the students’experience and contribute to the quality of school life, our school organized a visit to the theme park entitled Ocean Kingdom on October 18. Dozens of us took part in it.
As scheduled, we gathered at the school gate at 8:00 a.m. and set off for the theme park by bus in high spirits. On arrival, we were greeted by a variety of marine creatures, which was a feast for our eyes. At 10;00, a dolphin performance was put on, attracting a large number of viewers. We were absorbed in the intelligence and friendliness of dolphins. Then we experienced some exciting rides to challenge ourselves and overcome fears. In addition, we acquired a good knowledge of oceanic culture by visiting the science museum, which made us realize the importance of protecting the environment. With the sun setting and the night approaching, our pleasant trip came to an end.
The activity benefited us a lot. Not only did it provide an opportunity for us to be exposed to the sea
world and give us relaxation from heavy school work, it also promoted the friendship among us. What a wonderful time!
听力原文
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