天津河西区天津实验中学2017-2018学年高二上学期期中
2015年天津卷高考真题英语试卷-学生用卷
2015年天津卷高考真题英语试卷-学生用卷一、单项选择1、【来源】 2015年高考真题天津卷第1题2020~2021学年天津和平区天津市第二南开学校高一上学期期中第22题0.5分2017~2018学年天津高一期末联考第9题1分2018~2019学年天津静海区天津市静海区第一中学高二上学期期中第16题1分—Sorry, Liz. I think I was a bit rude to you.—______, but don't do that again!A. Go aheadB. Forget itC. It dependsD. With pleasure2、【来源】 2015年高考真题天津卷第2题The quality of education in this small school is better than ______ in some larger schools.A. thatB. oneC. itD. this3、【来源】 2015年高考真题天津卷第3题2016~2017学年广东广州高二上学期期中五校联考第17题1分2018~2019学年吉林长春朝阳区吉林省实验中学高二下学期期末第30题1分Only when Lily walked into the office that she had left the contract at home.A. she realizedB. has she realizedC. she has realizedD. did she realize4、【来源】 2015年高考真题天津卷第4题—Jack, you seem excited.—______? I won the first prize.A. Guess whatB. So whatC. Pardon meD. Who cares5、【来源】 2015年高考真题天津卷第5题2018~2019学年10月广东深圳福田区深圳市高级中学高中部高二月考第47题1分2019~2020学年广东深圳罗湖区深圳市翠园中学高二上学期期中第6题1分2019~2020学年陕西西安长安区西安交通大学附属中学航天学校高三上学期段考（四诊）第22题1分2017~2018学年北京海淀区北京市十一学校高二上学期期末第49题0.5分in painting, John didn't notice evening approaching.A. To absorbB. To be absorbedC. AbsorbedD. Absorbing6、【来源】 2015年高考真题天津卷第6题2016~2017学年天津高一下学期期末第22题0.5分2017~2018学年天津和平区天津市第一中学高一下学期期末第25题1分2019~2020学年陕西西安长安区西安交通大学附属中学航天学校高三上学期段考（四诊）第23题1分2016~2017学年北京海淀区北京一零一中学高二下学期期中第22题1分Jane can't attend the meeting at 3 o'clock this afternoon because she a class at that time.A. will teachB. would teachC. has taughtD. will be teaching7、【来源】 2015年高考真题天津卷第7题2019~2020学年3月天津河西区高三下学期月考第14题1分I ______ have worried before I came to the new school, for my classmates here are very friendly to me.A. mightn'tB. mustn'tC. needn'tD. couldn't8、【来源】 2015年高考真题天津卷第8题2018~2019学年10月天津和平区天津市双菱中学高二上学期月考第26题1分2018~2019学年10月广东深圳福田区深圳市高级中学高中部高二月考第48题1分2019~2020学年3月天津河西区高三下学期月考第11题1分2019~2020学年广东深圳福田区深圳市高级中学高中部高一下学期期中第15题1.5分______ for two days, Steve managed to finish his report on schedule.A. To workB. WorkedC. To be workingD. Having worked9、【来源】 2015年高考真题天津卷第9题2019~2020学年12月江苏南京玄武区南京市第九中学高一上学期月考第63题1分2018~2019学年陕西西安未央区西安中学高一上学期期末第26题1分2017~2018学年北京东城区北京汇文中学高二上学期期中第35题1分2017~2018学年广东深圳福田区深圳市高级中学高中部高一下学期期中第53题1分Despite the previous rounds of talks, no agreement so far by the two sides.A. has been reachedB. was reachedC. will reachD. will have reached10、【来源】 2015年高考真题天津卷第10题2019~2020学年陕西西安长安区西安交通大学附属中学航天学校高三上学期段考（四诊）第25题1分Tom had to the invitation to the party last weekend because he was too busy.A. turn inB. turn downC. turn overD. turn to11、【来源】 2015年高考真题天津卷第11题2019~2020学年天津南开区高三上学期期末第6题1分If you have any doubts about your health, you'd better______ your doctor at once.A. convinceB. consultC. avoidD. affect12、【来源】 2015年高考真题天津卷第12题We need to get to the root of the problem we can solve it.A. whileB. afterC. beforeD. as13、【来源】 2015年高考真题天津卷第13题2015~2016学年北京西城区北京师范大学第二附属中学高二上学期期中第5题I wish I ______ at my sister's wedding last Tuesday, but I was on a business trip in New York then.A. will beB. would beC. have beenD. had been14、【来源】 2015年高考真题天津卷(部分区联考)第14题2016~2017学年天津高一下学期期末第13题1分See, your computer has broken down again! It doesn't ______ sense to buy the cheapest brand of computer just to save a few dollars.A. haveB. makeC. displayD. bring15、【来源】 2015年高考真题天津卷第15题2018~2019学年广东深圳宝安区宝安第一外国语学校高二下学期期中第62题1分2017~2018学年天津和平区天津市第一中学高二上学期期末第16题1分The boss of the company is trying to create an easy atmosphere his employees enjoy their work.A. whereB. whichC. whenD. who二、完型填空16、【来源】 2015年高考真题天津卷第16题2017~2018学年12月河南洛阳洛龙区洛阳市第一高级中学高二上学期月考第36~55题20分2019~2020学年高一下学期单元测试第30~49题2017~2018学年黑龙江大庆红岗区大庆市铁人中学高二上学期期中第41~60题30分My fiance （未婚夫） and I were excited about shopping for our first home. But our fundswere1, and none of the houses in our price range seemed satisfactory.One agent2 a house in particular. Although her description sounded wonderful, the price was3our range, so we declined. But she kept urging us to have a look4.We finally did and it was5at first sight. It was Our Home, small and charming, overlooking a quiet lake. Walking through the rooms and talking with the owners, a nice elderly couple, we felt the warmth and6of the marriage within that home. As perfect as it was, the price remained too high for us. But every day, we would sit by the lake, looking at the house and dreaming of7it would be like to live there.Days later, we made a(n)8—far below the asking price. Surprisingly, they didn't9us. They renewed their offer10. It was also much more than we could afford, but far11than the original asking price.The next day, we got a12message that another buyer had offered a much higher price. Even so, we decided to talk with the13directly. We made our final offer, which14was thousands of dollars less than the other buyer's bid. We knew it,15we had to try.“Sold!” said the owner. Then he16: He'd seen us sitting by the lake all those times; he knew how much we loved the place and that we'd17the years of work they had put into their home; he realized he would take a18by selling it to us, but it was worthwhile; we were the people they wanted to live there. He told us to consider the19in the price “an early wedding present.”That's how we found our home and how I learned that when peopleare20they are not strangers, only friends we haven't yet met.A. neededB. limitedC. enoughD. largeA. recommendedB. decoratedC. soldD. rentedA. belowB. withinC. beyondD. betweenA. at leastB. at mostC. at timesD. at handA. reliefB. concernC. loveD. curiosityA. prideB. happinessC. challengeD. desireA. whichB. whyC. thatD. whatA. effortB. offerC. promiseD. profitA. come acrossB. look afterC. depend onD. laugh atA. insteadB. indeedC. asideD. apartA. worseB. betterC. lessD. higherA. relaxingB. disappointingC. pleasantD. regularA. agentsB. buyersC. managersD. ownersA. alreadyB. stillC. generallyD. everA. soB. orC. forD. butA. apologizedB. complainedC. criticizedD. explainedA. checkB. analyzeC. appreciateD. ignoreA. lossB. riskC. chanceD. leadA. increaseB. differenceC. interestD. averageA. kindB. politeC. smartD. energetic三、阅读理解17、【来源】 2015年高考真题天津卷（A篇）第17题University Room RegulationsApproved and Prohibited ItemsThe following items are approved for use in residential （住宿的） rooms: electric blankets, hair dryers, personal computers, radios, televisions and DVD players. Items that are not allowed in student rooms include: candles, ceiling fans, fireworks, waterbeds, sun lamps and wireless routers. Please note that any prohibited items will be taken away by the Office of Residence Life.Access to Residential RoomsStudents are provided with a combination （组合密码） for their room door locks upon check-in. Do not share your room door lock combination with anyone. The Office of Residence Life may change the door lock combination at any time at the expense of the resident if it is found that the student has shared the combination with others. The fee is $25 to change a room combination.Cooking PolicyStudents living in buildings that have kitchens are only permitted to cook in the kitchen. Students must clean up after cooking. This is not the responsibility of housekeeping staff. Kitchens that are not kept clean may be closed for use. With the exception of using a small microwave oven （微波炉） to heat food, students are not permitted to cook in their rooms.Pet PolicyNo pets except fish are permitted in student rooms. Students who are found with pets, whether visiting or owned by the student, are subject to an initial fine of ＄100 and a continuing fine of ＄50 a day per pet. Students receive written notice when the fine goes into effect. If, one week from the date of written notice, the pet is not removed, the student is referred to the Student Court.Quiet HoursResidential buildings must maintain an atmosphere that supports the academic mission of the University. Minimum quiet hours in all campus residences are 11:00 pm to 8:00 am Sunday through Thursday. Quiet hours on Friday and Saturday nights are 1:00 am to 8:00 am. Students who violate quiet hours are subject to a fine of $25.(1) Which of the following items are allowed in student rooms?A. Ceiling fans and waterbeds.B. Wireless routers and radios.C. Hair dryers and candles.D. TVs and electric blankets.(2) What if a student is found to have told his combination to others?A. The combination should be changed.B. The Office should be charged.C. He should replace the door lock.D. He should check out of the room.(3) What do we know about the cooking policy?A. A microwave oven can be used.B. Cooking in student rooms is permitted.C. A housekeeper is to clean up the kitchen.D. Students are to close kitchen doors after cooking.(4) If a student has kept a cat in his room for a week since the warning, he will face _____.A. parent visitsB. a fine of $100C. the Student CourtD. a written notice(5) When can students enjoy a party in residences?A. 7:00 am, Sunday.B. 7:30 am, Thursday.C. 11:30 pm, Monday.D. 00:30 am, Saturday.18、【来源】 2015年高考真题天津卷第18题Whether in the home or the workplace, social robots are going to become a lot more common in the next few years. Social robots are about to bring technology to the everyday world in a more humanized way, said Cynthia Breazeal, chief scientist at the robot company Jibo.While household robots today do the normal housework, social robots will be much more like companions than mere tools. For example, these robots will be able to distinguish when someone is happy or sad. This allows them to respond more appropriately to the user.The Jibo robot, arranged to ship later this year, is designed to be a personalized assistant. You can talk to the robot, ask it questions, and make requests for it to perform different tasks. The robot doesn't just deliver general answers to questions; it responds based on what it learns about each individual in the household. It can do things such as reminding an elderly family member to take medicine or taking family photos.Social robots are not just finding their way into the home. They have potential applications in everything from education to health care and are already finding their way into some of these spaces.Fellow Robots is one company bringing social robots to the market. The company's "Oshbot" robot is built to assist customers in a store, which can help the customers find items and help guide them to the product's location in the store. It can also speak different languages and make recommendations for different items based on what the customer is shopping for.The more interaction the robot has with humans, the more it learns. But Oshbot, like other social robots, is not intended to replace workers, but to work alongside other employees. "We have technologies to train social robots to do things not for us, but with us, " said Breazeal.(1) How are social robots different from household robots?A. They can control their emotions.B. They are more like humans.C. They do the normal housework.D. They respond to users more slowly.(2) What can a Jibo robot do according to Paragraph 3?A. Communicate with you and perform operations.B. Answer your questions and make requests.C. Take your family pictures and deliver milk.D. Obey your orders and remind you to take pills.(3) What can Oshbot work as?A. A language teacher.B. A tour guide.C. A shop assistant.D. A private nurse.(4) We can learn from the last paragraph that social robots will.A. train employeesB. be our workmatesC. improve technologiesD. take the place of workers(5) What does the passage mainly present?A. A new design idea of household robots.B. Marketing strategies for social robots.C. Information on household robots.D. An introduction to social robots.19、【来源】 2015年高考真题天津卷第19题2017~2018学年12月河南洛阳洛龙区洛阳市第一高级中学高二上学期月考第21~25题10分2017~2018学年陕西西安雁塔区陕西师范大学附属中学高三上学期开学考试第24~28题10分One day when I was 12, my mother gave me an order: I was to walk to the public library, and borrow at least one book for the summer. This was one more weapon for her to defeat my strange problem—inability to read.In the library, I found my way into the "Children's Room."I sat down on the floor and pulled a few books off the shelf at random. The cover of a book caught my eye. It presented a picture of a beagle. I had recently had a beagle, the first and only animal companion I ever had as a child. He was my secret sharer, but one morning, he was gone, given away to someone who had the space and the money to care for him. I never forgot my beagle.There on the book's cover was a beagle which looked identical to my dog. I ran my fingers over the picture of the dog on the cover. My eyes ran across the title, Amos, the Beagle with a Plan. Unknowingly, I had read the title. Without opening the book, I borrowed it from the library for the summer.Under the shade of a bush, I started to read about Amos. I read very, very slowly with difficulty. Though pages were turned slowly, I got the main idea of the story about a dog who, like mine, had been separated from his family and who finally found his way back home. That dog was my dog, and I was the little boy in the book. At the end of the story, my mind continued the final scene of reunion, on and on, until my own lost dog and I were, in my mind, running together.My mother's call returned me to the real world. I suddenly realized something: I had read a book, and I had loved reading that book. Everyone knew I could not read. But I had read it. Books could be incredibly wonderful and I was going to read them.I never told my mother about my "miraculous"（奇迹般地）experience that summer, but she sawa slow but remarkable improvement in my classroom performance during the next year. And years later, she was proud that her son had read thousands of books, was awarded a PhD in literature, and authored his own books, articles, poetry and fiction. The power of the words has held.(1) The author's mother told him to borrow a book in order to.A. encourage him to do more walkingB. let him spend a meaningful summerC. help cure him of his reading problemD. make him learn more about weapons(2) The book caught the author's eye because.A. it contained pretty pictures of animalsB. it reminded him of his own dogC. he found its title easy to understandD. he liked children's stories very much(3) Why could the author manage to read the book throughA. He was forced by his mother to read it.B. He identified with the story in the book.C. The book told the story of his pet dog.D. The happy ending of the story attracted him.(4) What can be inferred from the last paragraph?A. The author has become a successful writer.B. The author's mother read the same book.C. The author's mother rewarded him with books.D. The author has had happy summers ever since.(5) Which one could be the best title of the passage?A. The Charm of a BookB. Mum's Strict OrderC. Reunion with My BeagleD. My Passion for Reading20、【来源】 2015年高考真题天津卷第20题DOnce when I was facing a decision that involved high risk, I went to a friend. He looked at me for a moment, and then wrote a sentence containing the best advice I've ever had: Be bold and brave — and mighty (强大的) forces will come to your aid.Those words made me see clearly that when I had fallen short in the past, it was seldom because I had tried and failed. It was usually because I had let fear of failure stop me from trying at all. On the other hand, whenever I had plunged into deep water, forced by courage or circumstance, I had always been able to swim until I got my feet on the ground again.Boldness means a decision tobite off more than you can eat. And there is nothing mysterious about the mighty forces. They are potential powers we possess: energy, skill, sound judgment, creative ideas —even physical strength greater than most of us realize.Admittedly, those mighty forces are spiritual ones. But they are more important than physical ones. A college classmate of mine, Tim, was an excellent football player, even though he weighed much less than the average player. “In one game I suddenly found myself confronting a huge player, who had nothing but me between him and our goal line,” said Tim. “I was so frightened that I closed my eyes and desperately threw myself at that guy like a bullet — and stopped him cold.”Boldness — a willingness to extend yourself to the extreme—is not one that can be acquired overnight. But it can be taught to children and developed in adults. Confidence builds up. Surely, there will be setbacks (挫折) and disappointments in life; boldness in itself is no guarantee of success. But the person who tries to do something and fails is a lot better off than the person who tries to do nothing and succeeds.So, always try to live a little bit beyond your abilities—and you'll find your abilities are greater than you ever dreamed.(6) Why was the author sometimes unable to reach his goal in the past?A. He faced huge risks.B. He lacked mighty forces.C. Fear prevented him from trying.D. Failure blocked his way to success.(7) What is the implied meaning of the underlined part?A. Swallow more than you can digest.B. Act slightly above your abilities.C. Develop more mysterious powers.D. Learn to make creative decisions.(8) What was especially important for Tim’s successful defense in the football game?A. His physical strength.B. His basic skill.C. His real fear.D. His spiritual force.(9) What can be learned from Paragraph 5?A. Confidence grows more rapidly in adults.B. Trying without success is meaningless.C. Repeated failure creates a better life.D. Boldness can be gained little by little.(10) What is the author’s purpose in writing this passage?A. To encourage people to be courageous.B. To advise people to build up physical power.C. To tell people the ways to guarantee success.D. To recommend people to develop more abilities.四、任务型阅读21、【来源】 2015年高考真题天津卷第21题Six days a week, up and down the red hills of northeast Georgia, my grandfather brought the mail to the folks there. At age 68, he retired from the post office, but he never stopped serving the community.On his 80th birthday, I sent him a letter, noting the things we all should be thankful for — good health, good friends and good outcomes. By most measurements he was a happy man. Then I suggested it was time for him to slow down. At long last, in a comfortable home, with a generous pension, he should learn to take things easy.“Thank you for your nice words,” he wrote in his letter back, “and I know what you meant, but slowing down scares me. Life isn't having it made; it's getting it made.”“The finest and happiest years of our lives were not when all the debts were paid, and all difficult experiences had passed, and we had settled into a comfortable home. No. I go back years ago, when we lived in a three-room house, when we got up before daylight and worked till after dark to make ends meet.I rarely had more than four hours of sleep. But what I still can't figure out is why I never got tired, never felt better in my life. I guess the answer is, we were fighting for survival, protecting and providing for those we loved. What matters are not the great moments, but the partial victories, the waiting, and even the defeats. It's the journey, not the arrival, that counts.”The letter ended with a personal request: “Boy, on my next birthday, just tell me to wake up and get going, because I will have one less year to do things — and there are ten million things waiting to be done.”Christina Rossetti, an English poet, once said: “Does the road wind uphill all the way? Yes, to the very end.” Today, at 96, my grandfather is still on that long road, climbing.(6) What was the author’s grandfather before he retired? (no more than 5 words)(7) What did the author advise his grandfather to do in his letter? (no more than 10 words)(8) What is the grandfather’s view on life according to his letter back? (no more than 10 words)(9) How do you understand the underlined sentence in the last paragraph? (no more than 10 words)(10) Do you agree with the grandfather’s view on life? Give reasons in your own words, (no more than 20 words)五、书面表达22、【来源】 2015年高考真题天津卷第22题假设你是晨光中学学生会主席李津，你校拟向美国友好交流学校的中文班捐赠一批图书。
2010年湖北卷高考真题英语试卷-学生用卷
2010年湖北卷高考真题英语试卷-学生用卷一、单项选择1、【来源】 2010年高考真题湖北卷第1题2010年高考真题湖北卷第21题1分2017~2018学年天津红桥区高三上学期期中第9题1分2016~2017学年宁夏石嘴山大武口区石嘴山市第三中学高一下学期期末第24题1分2018~2019学年5月天津河西区天津市新华中学高三下学期月考第11题1分This restaurant has become popular for its wide_____of foods that suit all tastes and pockets.A. divisionB. areaC. rangeD. circle2、【来源】 2010年高考真题湖北卷第2题2010年高考真题湖北卷第22题1分2017~2018学年黑龙江哈尔滨道里区哈尔滨市第九中学校高一上学期期中第63题0.5分After the earthquake, the first thing the local government did was to provide ______for the homeless families.A. accommodationB. occupationC. equipmentD. furniture3、【来源】 2010年高考真题湖北卷第3题2010年高考真题湖北卷第23题1分2019~2020学年7月湖北武汉武昌区武汉市第十四中学高一下学期月考第28题1分In this lecture, I can only give you a purely view of how we can live life to the full and make some suggestions about the future.A. privateB. personalC. uniqueD. different4、【来源】 2010年高考真题湖北卷第24题1分2010年高考真题湖北卷第4题Mistakes don't just happen; they occur for a reason. Find out the reason and then making the mistake becomes.A. favourableB. preciousC. essentialD. worthwhile5、【来源】 2010年高考真题湖北卷第25题1分2010年高考真题湖北卷第5题2018年天津和平区天津市耀华中学高三二模第6题1分If I find someone who looks like the suspect, my reaction will be to tell the police.A. physicalB. immediateC. sensitiveD. sudden6、【来源】 2010年高考真题湖北卷第6题2016~2017学年3月北京海淀区北京市育英中学高二下学期月考第27题1分I wasn't blaming anyone; I said errors like this could be avoided.A. merelyB. mostlyC. rarelyD. nearly7、【来源】 2010年高考真题湖北卷第7题2010年高考真题湖北卷第27题1分Duty is an act or a course of action that people______ you to take by social customs, law or religion.A. persuadeB. requestC. instructD. expect8、【来源】 2010年高考真题湖北卷第8题2010年高考真题湖北卷第28题1分2017~2018学年天津河西区高二上学期期末第19题Just as the clothes a person wears, the food he eats and the friends with whom he spends his time, his house_____ his personality.A. resemblesB. strengthensC. reflectsD. shapes9、【来源】 2010年高考真题湖北卷第9题2018~2019学年黑龙江哈尔滨香坊区哈尔滨市第六中学高二上学期期末第64题0.5分Had she her promise, she would have made it to Yale University.A. looked up toB. lived up toC. kept up withD. come up with10、【来源】 2010年高考真题湖北卷第10题2010年高考真题湖北卷第30题1分2018~2019学年辽宁大连沙河口区大连育明高级中学高一上学期期中第15题1分2018~2019学年天津和平区天津市第一中学高一下学期期中第7题1分2018~2019学年12月江苏扬州江都区江苏省江都中学高一上学期月考（华罗庚中学、句容中学、溧水中学等五校联考）第25题1分It is illegal for a public official to ask people for gifts or money favors to them.A. in preference toB. in place ofC. in agreement withD. in exchange for二、完形填空11、【来源】 2010年高考真题湖北卷第31~50题30分(每题1.5分)2010年高考真题湖北卷第11题2018~2019学年广西南宁青秀区南宁市第二中学高二上学期期末第41~60题30分The passengers on the bus watched with sympathy as Susan made her way carefully up the steps. She paid the driver and then, using her hands to 1the seats, settled in one of them.It had been a year since Susan became blind. As the result of an accident she was suddenly thrown into a world of 2Susan’s husband Mark watchedher 3into hopelessness and he was 4to use every possible means to help his wife.Finally, Susan felt ready to 5to her job, but how would she get there? She used to take the bus, but she was now too 6to get around the city by herself. Mark7to ride the bus with Susan each morning andevening 8she could manage it by herself.For two weeks, Mark 9Susan to and from work each day. He taught her how to rely on her other10, specifically her hearing, to determine where she was and how to adapt to her new11At last, Susan decided that she was ready to try the trip12Monday morning arrived. Before she left, she hugged her husband 13,her eyes filled with tears of gratitude（感激）. She said good-bye and, for the first time, they wenttheir 14ways. Each day went perfectly, and a wildexcitement 15Susan.She was doing it!On Friday morning, Susan took the bus to work 16As she was getting off the bus, the driver said, “Miss, I sure17you.” Curious, Susan asked the driver18“You know, every morning for the 19week, a fine-looking gentleman in a military uniform has been standing across the corner watching you until you enter your office building safely, ” the bus driver said.Tears of happiness poured down Susan’s cheeks. She was so lucky for he had given her a gift more powerful than20, that is the gift of love that can bring light where there is darkness.A. touchB. grabC. countD. feelA. weaknessB. sicknessC. darknessD. sadnessA. runB. sinkC. jumpD. stepA. inspiredB. determinedC. honoredD. pleasedA. returnB. adjustC. contributeD. stickA. tiredB. astonishedC. depressedD. frightenedA. volunteeredB. attemptedC. continuedD. struggledA. whenB. asC. untilD. afterA. droveB. directedC. accompaniedD. sentA. feelingB. organsC. skillsD. sensesA. positionB. environmentC. statusD. roleA. on herownB. in personC. to her benefitD. on footA. politelyB. calmlyC. brieflyD. tightlyA. oppositeB. separateC. fixedD. lonelyA. tookcharge ofB. took place ofC. took advantage ofD. took hold ofA. as usualB. as a ruleC. as wellD. as a consequenceA. respectB. envyC. knowD. supportA. whatB. howC. whyD. whoA. pastB. sameC. firstD. nextA. courageB. willC. sightD. wisdom三、阅读理解12、【来源】 2010年高考真题湖北卷第12题2010年高考真题湖北卷（A篇）第51~54题8分2016~2017学年北京西城区北京师范大学附属中学高一下学期期中第31~34题8分It was a Sunday and the heavy storm had lasted all night. The morning after the storm, though, was beautiful: blue skies, warm air and a calm, inviting sea touching the shore gently.My father realized it was a good day for fishing and invited my sister and me to go with him. I was only 14 and fishing had never been my thing, but I decided to go all the same. TAL#NBSP I'm so glad I did.On the road to the harbour we could see the terrible destruction on the coast, but the harbour itself was in fairly good shape. After all, it was protected by the arms of a bay that had only one tiny channel to the sea. As we got on board, we noticed two big humps（脊背）in the distance.On approaching them, we saw it was a mother whale with her baby. We couldn't believe it—there aren't any whales along the coast here. The storm must have driven them across the ocean into the bay, in which the still water was so badly polluted that nothing could survive.The little baby whale—actually as big as our boat—was obviously stuck and could not move. The mother dived under the water and came up suddenly, making big whirlpools（漩涡）and waves. "She's trying to help her baby, but on the wrong side, "my father said. At this point, my father moved our boat in a semicircle to the other side and, heading the boat towards the baby whale, pushed it gently. With our several gentle pushes the big hump turned over and disappeared under water. Then it swam up right beside its mum. They struggled in their desperate attempts to escape but missed the exit and started heading in the wrong direction. We hurried up to the whales and tried to lead them towards the bay channel. Slowly, they let us lead them, some-times rising from the water right beside us to breathe—and to give us a trusting look with those huge eyes. Once they hit their first part of clean water flowing straight from the sea, the mum gave us a wave with her tail and off they swam into the distance.In the excitement it had felt like only a few minutes, but we had been with those wonderful animals for almost an hour and a half. That was the simple and lasting beauty of the day, Nearly four decades later,I still look back fondly to that golden day at sea.(1) The author says "I'm so glad I did." （in Para. 2） because.A. he witnessed the whole process of fishingB. he enjoyed the beauty of the calm seaC. he experienced the rescue of the whalesD. he spent the weekend with his family(2) The harbour survived the storm owing to.A. the shape of the harbourB. the arms of the bayC. the still water in the channelD. the long coast line(3) The mother whale failed to help her baby because.A. she had stayed in the polluted water for too longB. the whirl pools she had made were not big enoughC. she had no other whales around to turn to for helpD. the waves pushed her baby in the wrong direction(4) What is the theme of the story?A. Saving lives brings people a sense of happinessB. Fishing provides excitement for childrenC. It's necessary to live in harmony with animalsD. It's vital to protect the environment13、【来源】 2010年高考真题湖北卷第13题2017~2018学年广东广州海珠区广州市第六中学高三下学期期中（D篇）第32~35题8分2017~2018学年广东广州越秀区广州市第十六中学高一上学期期中第4题2016~2017学年广东广州越秀区广州市第十六中学高一上学期期中第32~35题8分For many parents, raising a teenager is like fighting a long war, but years go by without any clear winner. Like a border conflict between neighboring countries, the parent-teen war is about boundaries: Where is the line between what I control and what you do?Both sides want peace, but neither feels it has any power to stop the conflict. In part, this is because neither is willing to admit any responsibility for starting it. From the parents' point of view, the only cause of their fight is their adolescents' complete unreasonableness. And of course, TAL#NBSP the teens see it in exactly the same way, except oppositely.Both feel trapped.In this article, I'll describe three no-win situations that commonly arise between teens and parents and then suggest some ways out of the trap. The first no-win situation is quarrels over unimportant things. Examples include the color of the teen's hair, the cleanliness of the bedroom, the preferred style of clothing, the child's failure to eat a good breakfast before school, or his tendency to sleep until noon on the weekends. Second, blaming. The goal of a blaming battle is to make the other admit that his bad attitude is the reason why everything goes wrong. Third, needing to be right, It doesn't matter what the topic is—politics. The laws of physics, or the proper way to break an egg—the point of these arguments is to prove that you are right and the other person is wrong. for both wish to be considered an authority—someone who actually knows something — and therefore to command respect. Unfortunately, as long as long as parents and teens continue to assume that they know more than the other, they'll continue to fight these battles forever and never make any real progress.(1) Why does the author compare the parent-teen war to a border conflict?A. Both can continue for generations.B. Both are about where to draw the lineC. Neither has any clear winnerD. Neither can be put to an end(2) What does the underlined part in Paragraph 2 mean?A. The teens blame their parents for starting the conflict.B. The teens agree with their parents on the cause of the conflictC. The teens cause their parents of misleading themD. The teens tend to have a full understanding of their parents(3) Parents and teens want to be right because they want to.A. give orders to the otherB. know more than the otherC. gain respect from the otherD. get the other to behave properly(4) What will the author most probably discuss in the paragraph that follows?A. Causes for the parent –teen conflictsB. Examples of the parent –teen war.C. Solutions for the parent –teen problemsD. Future of the parent-teen relationship14、【来源】 2010年高考真题湖北卷（C篇）第59~62题8分(每题2分)2010年高考真题湖北卷（C篇）第14题2017~2018学年北京西城区北京师范大学附属中学高二下学期期中第64~67题8分They wear the latest fashions with the most up-to-date accessories （配饰）. Yet these are girls in their teens or twenties but women in their sixties and seventies. A generation which would once only wear old-fashioned clothes is now favoring the same high street looks worn by those half their age.Professor Julia Twigg, a social policy expert, said, "Women over 75 are now shopping for clothes more frequently than they did when they were young in the 1960s. In the 1960s buying a coat for a woman was a serious matter. It was an expensive item that they would purchase only every three or four years —now you can pick one up at the supermarket whenever you wish to. Fashion is a lot cheaper and people get tired of things more quickly. "Professor Twigg analyzed family expending（支出）data and found that while the percentage of spending on clothes and shoes by women had stayed around the same—and 5 or 6 per cent of spending—the amount of clothes bought had risen sharply.The professor said, "Clothes are now 70 per cent cheaper than they were in the 1960s because of the huge expansion of production in the Far East. In the 1960s Leeds was the heart of the British fashion industry and that was where most of the clothes came from, but now almost all of our clothes are sourced elsewhere. Everyone is buying more clothes but in general we are not spending more money on them. "Fashion designer Angela Barnard, who runs her own fashion business in London, said older women were much more affected by celebrity（名流） style than in previous years.She said, "When people see stars such as Judi Dench and Helen Mirren looking attractive and fashionable in their sixties, they want to follow them. Older women are much more aware of celebrities. There's also the boom in TV programmes showing people how they can change their look, and many of my older customers do yoga to stay in shape well in their fifties. When I started my business a few years ago, my older customers tended to be very rich, but now they are what I would call ordinary women. My own mother is 61 and she wears the latest fashions in a way she would never have done ten years ago. "(1) Professor Twigg found that, compared with the 1960s,.A. the price of clothes has generally fallen by 70%B. the spending on clothes has increased by 5% or 6%C. people spend 30% less than they did on clothesD. the amount of clothes bought has risen by 5% or 6%(2) What can we learn about old women in terms of fashionA. They are often ignored by fashion designers.B. They are now more easily influenced by stars.C. They are regarded as pioneers in the latest fashion.D. They are more interested in clothes because of their old age.(3) It can be concluded that old women tend to wear the latest fashions today mainlybecauseA. they get tired of things more quicklyB. TV shows teach them how to change their lookC. they are in much better shape nowD. clothes are much cheaper than before(4) Which is the best possible title of the passage?A. Age Is No Barrier for Fashion FansB. The More Fashionable, the Less ExpensiveC. Unexpected Changes in FashionD. Boom of the British Fashion Industry15、【来源】 2010年高考真题湖北卷（D篇）第63~66题8分(每题2分)2010年高考真题湖北卷第15题This brief book is aimed at high school students, but speaks to anyone learning at any stage of life.Its formal, serious style closely matches its content, a school-masterly book on schooling. The author, W. H. Armstrong, starts with the basics: reading and writing. In his opinion, reading doesn't just mean recognizing each word on the page; it means taking in the information, digesting it and incorporating it into oneself just as one digests a sandwich and makes it a part of him. The goal is to bring the information back to life, not just to treat it as dead facts on paper from dead trees. Reading and writing cannot be completely separated from each other; in fact, the aim of reading is to express the information you have got from the text. I've seen it again and again：some-one who can't express an idea after reading a text is just as ineffective as someone who hasn't read it at all.Only a third of the book remains after that discussion, which Armstrong devotes to specific tips for studying languages, math, science and history. He generally handles these topics thoroughly（透彻地）and equally, except for some weakness in the science and math sections and a bit too much passion（激情） regarding history to his students, that was a hundred times more than my history teachers ever got across. To my disappointment, in this part of the book he ignores the arts. As a matter of fact, they demand all the concentration and study that math and science do, though the study differs slightly in kind. Although it's commonly believed that the arts can only be naturally acquired, actually, learning the arts is no more natural than learning French or mathematics.My other comment is that the text aged.The first edition apparently dates to the 1960s—none of the references（参考文献）seem newer than the late 1950s. As a result, the discussion misses the entire computer age.These are small points, though, and don't affect the main discussion. I recommend it to any student and any teacher, including the self-taught student.(1) According to Armstrong, the goal of reading is to.A. gain knowledge and expand one's viewB. understand the meaning between the linesC. experts ideas based on what one has readD. gets information and keeps it alive in memory(2) The author of the passage insists that learning the arts.A. requires great effortsB. demands real passionC. is less natural than learning mathsD. is as natural as learning a language(3) What is a shortcoming of Armstrong's work according to the author?A. Some ideas are slightly contradictory.B. There is too much discussion on studying science.C. The style is too serious.D. It lacks new information.(4) This passage can be classified as.A. an advertisementB. a book reviewC. a feature storyD. a news report16、【来源】 2010年高考真题湖北卷E篇第67~70题8分(每题2分)2010年高考真题湖北卷第16题EHave you winterized your horse yet? Even though global warming may have made our climate more mild, many animals are still hibernating(冬眠). It’s too bad that humans can’t hibernate. In fact,as a species, we almost did.Apparently, at times in the past, peasants in France liked a semi-state of human hibernation. So writes Graham Robb, a British scholar who has studied the sleeping habits of the French peasants. As soon as the weather turned cold people all over France shut themselves away and practiced the forgotten art of doing nothing at all for months on end.In line with this, Jeff Warren, a producerat CBC Radio’s The Current, tells us that the way we sleep has changed fundamentally since the invention of artificial(人造的) lighting and the electric bulb.When historians began studying texts of the Middle Ages, they noticed something referred to as “first sleep”, which was not clarified, though. Now scientists are telling us our ancestors most likely slept in separate periods. The business of eight hours’ uninterrupted sleep is a modern invention.In the past, without the artificial light of the city to bathe in, humans went to sleep when it became dark and then woke themselves around midnight. The late night period was known as “The Watch”It was when people actually kept watch against wild animals, although many of them simply moved around or visited family and neighbours.According to some sleep researchers,a short period of insomnia(失眠) at midnight is not a disorder. It is normal. Humans can experience another state of consciousness around their sleeping, which occurs in the brief period before we fall asleep or wake ourselves in the morning. This period can be an extraordinarily creative time for some people. The impressive inventor,Thomas Edison, used this state to hit upon many of his new ideas.Playing with your sleep rhythms can be adventurous, as anxiety may set in. Medical science doesn’t help much in this case. It offers us medicines for a full night’s continuous sleep, which sounds natural;however, according to Warren’s theory，it is really the opposite of what we need.(1) The example of the French peasants shows the fact that________.A. people might become lazy as a result of too much sleepB. there were signs of hibernation inhuman sleeping habitsC. people tended to sleep more peacefully in cold weatherD. winter was a season for people to sleep for months on end(2) The late night was called “The Watch” because it was a time for people______.A. to set traps to catch animalsB. to wake up their family and neighboursC. to remind others of the timeD. to guard against possible dangers(3) What does the author advise people to do?A. Sleep in the way animals do.B. Consult a doctor if they can’t sleep.C. Follow their natural sleep rhythm.D. Keep to the eight-hour sleep pattern.(4) What is the author’s purpose in writing the passage?A. To give a prescription for insomnia.B. To urge people to sleep less.C. To analyze the sleep pattern of modern people.D. To throw new light on human sleep.四、完成句子17、【来源】 2010年高考真题湖北卷第17题阅读下列各小题，根据括号内的汉语提示，用句末括号内的英语单词完成句子，并将答案写在答题卡上的相应题号后。
2017-2018学年第二学期高二数学文科期中考试试卷含答案
密 封 装 订 线2017—2018学年度第二学期八县(市)一中期中联考 高中二年数学科（文科）试卷命 题： 复 核：完卷时间：120分钟 满 分：150分第Ⅰ卷一、选择题（每小题5分，共60分. 在每小题给出的四个选项中，只有一项是符合题目要求的）1、若212(1),1z i z i =+=-，则12z z 等于( ) A ．1i + B ．1i -+ C ．1i - D ．1i --2、在研究吸烟与患肺癌的关系中，通过收集数据、整理分析数据得“吸烟与患肺癌有关”的结论，并且有99%以上的把握认为这个结论是成立的，则下列说法中正确的是（ ） A. 100个吸烟者中至少有99人患有肺癌 B. 1个人吸烟，那么这人有99%的概率患有肺癌 C. 在100个吸烟者中一定有患肺癌的人D. 在100个吸烟者中可能一个患肺癌的人也没有3、下图是解决数学问题的思维过程的流程图：在此流程图中，①、②两条流程线与“推理与证明” 中的思维方法匹配正确的是( ) A ．①—综合法，②—反证法 B ．①—分析法，②—反证法 C ．①—综合法，②—分析法 D ．①—分析法，②—综合法4、用三段论推理命题：“任何实数的平方大于0，因为a 是实数，所以20a >”，你认为这个推理（ ） A ．大前题错误 B ．小前题错误 C ．推理形式错误 D ．是正确的5、已知变量x 与y 负相关，且由观测数据算得样本平均数2, 1.5x y ==，则由该观测数据算得的线性回归方程可能是（ ）A ．y=3x ﹣4.5B ．y=﹣0.4x+3.3C ．y=0.6x+1.1D ． y=﹣2x+5.5 6、极坐标方程2cos 4sin ρθθ=所表示的曲线是（ ）A ．一条直线B ．一个圆C ．一条抛物线D ．一条双曲线7、甲、乙、丙三位同学中只有一人考了满分，当他们被问到谁考了满分，回答如下：甲说：是我考满分；乙说：丙不是满分；丙说：乙说的是真话．事实证明：在这三名同学中，只有一人说的是假话，那么满分的同学是（ ）A ．甲B ．乙C ．丙D ．不确定8、如右图所示，程序框图输出的所有实数对(x ，y )所对应的点都在函数( ) A ．y ＝x ＋1的图象上 B ．y ＝2x 的图象上 C ．y ＝2x 的图象上 D ．y ＝2x -1的图象上 9、定义运算a b ad bc c d=-，若1201812z i i =（i 为虚数单位）且复数z满足方程14z z -=，那么复数z 在复平面内对应的点P 组成的图形为（ ）A. 以（-1，-2）为圆心，以4为半径的圆B. 以（-1，-2）为圆心，以2为半径的圆C. 以（1，2）为圆心，以4为半径的圆D. 以（1，2）为圆心，以2为半径的圆10、若下列关于x 的方程24430x ax a +-+=，2220x ax a +-=，22(1)0x a x a +-+= （a 为常数）中至少有一个方程有实根，则实数a 的取值范围是（ ） A ．3(,1)2-- B ．3(,0)2- C ．3(,][1,)2-∞-⋃-+∞ D ．3(,][0,)2-∞-⋃+∞ 11、以下命题正确的个数是（ ）①在回归直线方程82^+=x y 中，当解释变量x 每增加1个单位时，预报变量^y 平均增加2个单位； ②已知复数21,z z 是复数，若221121z z z z z z ⋅=⋅=，则；③用反证法证明命题：“三角形三个内角至少有一个不大于060”时，应假设“三个内角都大于060”；④在平面直角坐标系中，直线x y l 6:=经过变换⎩⎨⎧==yy x x ''23：ϕ后得到的直线'l 的方程：x y =； A ．1B ．2C ．3D ．412、《聊斋志异》中有这样一首诗：“挑水砍柴不堪苦，请归但求穿墙术。
天津市河西区实验中学2024届高三英语试题试卷含解析
天津市河西区实验中学2024届高三英语试题试卷注意事项：1．答题前，考生先将自己的姓名、准考证号填写清楚，将条形码准确粘贴在考生信息条形码粘贴区。
2．选择题必须使用2B铅笔填涂；非选择题必须使用0．5毫米黑色字迹的签字笔书写，字体工整、笔迹清楚。
3．请按照题号顺序在各题目的答题区域内作答，超出答题区域书写的答案无效；在草稿纸、试题卷上答题无效。
4．保持卡面清洁，不要折叠，不要弄破、弄皱，不准使用涂改液、修正带、刮纸刀。
第一部分（共20小题，每小题1.5分，满分30分）1．During each NBA season, basketball fans cheer on their favorite teams to make _______ through.A．it B．themC．that D．those2．_______ it is so hot, I guess we can’t do anything until after dark.A．In case B．Now that C．Even if D．As though3．he newly-discovered star was named _____ a Chinese astronomer ________his contributions to astronomy. A．for; in favor of B．after; in honor ofC．by; in memory of D．as; in praise of4．Please call my secretary to arrange a meeting this afternoon，or____________ it is convenient to you. A．wherever B．howeverC．whichever D．whenever5．The differences the children’s achievements can not be completely explained ________ their social backgrounds. A．in front of B．in case ofC．in need of D．in charge of6．Nobody can go back and start a new beginning, ______ anyone can start now and make a new ending.A．for B．andC．but D．so7．If people keep polluting the ocean, no creature there will survive ______.A．at all cost B．for a long whileC．in the long run D．by no means8．After I left _______ Linchuan No.2 Middle School, I began college classes in _______ September 2010.A．a; the B．不填; the C．the; the D．不填；不填9．—You all like your English teacher?—Yeah, she devotes herself____ to teaching and it earns her a good reputation．A．originally B．extremely C．obviously D．entirely10．Do you know that ______ chairman of the meeting has announced that Mr Hodge has beenmade ______ manager of this factory?11．It was in the remote mountain areas ______ I spent the gap year ______ I learned how to work with a group of strangers and how to look after myself.A．where; that B．when; thatC．where; when D．that; where12．—What about asking these new graduates to take on the task?—I m afraid not．While they are energetic and ambitious, _____ of them seems to be suitable for this demanding job．A．no one B．everyone C．none D．few13．Playing with the foreign visitors, my cousin is beginning to several different languages.A．pick up B．pick outC．turn up D．show out14．--- I’ll pa y a visit to Hong Kong. Would you mind keeping an eye on my house?--- Not at all. ______.A．I’d rather not B．I’d be happyC．I’ve no time D．I’d like to15．If you think that the illness might be serious, you should not _________ going to the doctor.A．put off B．set aboutC．hold back D．give away16．—Come on,please give me some ideas about the project.—Sorry.With so much work _______ my mind,I almost break down.A．filled B．filling C．to fill D．being filled17．—Would you mind moving over a little? I have to pass here.—________ I’d like to help.A．Not in the slightest. B．Don’t mention it.C．Never mind. D．At your service.18．— Mummy, look at my gloves. I need a new pair.— ________. I bought them for you only a week ago!A．Y ou bet B．You said itC．Y ou don’t say D．You name it19．It was announced that only after the candidates’ papers were collected _____to leave the room.A．had they been permitted B．would they be permittedC．that they would be permitted D．that they had been permitted20．At that time, the movie “Shaolin Temple”, _________Li Lianjie plays the starring role, drew the world’s attention to Chinese Kungfu.第二部分阅读理解（满分40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。
天津市南开中学20172018学年高一上学期期中考试英语试题Word版含
南开中学2017-2018学年度（上）高一年级期中阶段检测英语试题本试卷分第I 卷 ( 选择题）和第II卷（非选择题），共100 分，考试用时100 分钟。
第一卷 1 至 10 页，第II卷11至12页。
务必然答案涂写在答题卡和答题纸上，答在试卷上无效。
第一卷第一部分听力 ( 共两节，满分10 分 )第一节 ( 共 5 小题；每题 1 分，满分 5 分 )听下面 5 段对话。
每段对话后有—个小题，从题中所给的A、 B、 C 三个选项中选出最正确选项，并标在试卷的相应地址。
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—遍。
1． When does the man’ s plane take off?A． At 5:00.B．At 5:30.C．At 7:00.2. How often was the magazine published in the past?A． Once a week.B．Once a month.C．Twice a month.3． What will the woman probably do on Saturday evening?A． Go skating.B．Call her sister.C．Give a lecture.4． How does the woman feel?A． Worried.B．Angry.C．Surprised.5． Where does the conversation most probably take place?A． In an office.B．In a museum.C．In a clothing store.第二节 ( 共 10 小题；每题分，满分 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 三个选项中选出最正确选项，并标在试卷的相应地址。
听每段对话前，你将有时间阅读各个小题，每题 5 秒钟；听完后，各小题将给出 5 秒钟的作答时间。
2017-2018学年度第一学期期中考试九年级物理试卷及答案
2017-2018学年度第一学期期中考试九年级物理试卷本试卷分卷Ⅰ和卷Ⅱ两部分.卷Ⅰ为选择题，卷Ⅱ为非选择题。
本试卷满分为100分，考试时间90分钟。
卷Ⅰ（选择题，共36分）一、选择题：本大题共12个小题。
每小题只有一个选项符合题意，每小题3分，每小题3分。
本题共36分。
1.下列各物理量中，有一个物理量的单位与其他三个物理量的单位不同，它是 ……（ ） A. 内能 B. 热值 C. 功 D. 热量2．下列四组物质中，通常情况下都属于导体的一组是…………………（ ） A. 水银、大地、石墨 B. 玻璃、陶瓷、人体 C. 塑料、空气、橡胶 D. 盐水、煤油、蒸馏水3．如图1所列现象不能说明分子之间有引力的是……………………（ ）A. 两块铅块结合在一起B. 测力计的示数变大C. 两个露珠相遇后变成一个露珠D. 气体容易被压缩4．水的比热容较大这一特点在日常生活中有广泛的应用。
下列事例中不属于应用这一特点的是 ( ) A. 培育水稻秧苗时往稻田里灌水 B. 用水来冷却汽车发动机 C. 炎热的夏天，往室内地面上洒水降温 D. 冬天供暖时用水作循环液5．将肉片直接放入热油锅里爆炒，会将肉炒焦或炒糊，大大失去鲜味．厨师预先将适量的淀粉拌入肉片中，再放到热油锅里爆炒，炒出的肉片既鲜嫩味美又营养丰富，对此现象说法不正确的是（ ） A. 在炒肉片过程中，肉片的温度升高，内能增加 B. 附着在肉片外的淀粉糊有效防止了肉片里水分的蒸发 C. 在炒肉片过程中，肉片内能增加主要通过做功实现的D. 附近能闻到肉香体现了分子在不停地做无规则的运动6. 如图3所示，在做“连接串联电路”的实验中，许多同学闭合开关后发现灯泡L 1比L 2亮，则（ ）A. 通过L 1的电流大B. 通过L 2的电流大C. 通过两灯的电流一样大D. 无法判断两灯的电流大小7. 楼道里的声光控开关工作原理是：“光控开关（天黑时自动闭合，天亮时自动断开）；“声控开关”（有声音时自动闭合，一分钟后，若再无声音就自动断开）。
2017-2018学年天津市河西区公办校第三学区八年级(下)期中数学试卷(解析版)
2017-2018学年天津市河西区公办校第三学区八年级（下）期中数学试卷一、选择题（本大题共12小题，共36.0分）1.下列二次根式中属于最简二次根式的是（）A. B. C. D.2.下列各式中，正确的是（）A. B. C. D.3.一个直角三角形的两直角边长分别为3，4，则第三边长是（）A. 3B. 4C. 5D. 5或4.使代数式有意义的x的取值范围是（）A. B. C. D. 且5.下列各组数据中能作为直角三角形的三边长的是（）A. 1，2，2B. 1，1，C. 4，5，6D. 1，，26.如图，在▱ABCD中，AB=4cm，AD=7cm，∠ABC平分线交AD于E，交CD的延长线于点F，则DF=（）A. 2cmB. 3cmC. 4cmD. 5cm7.菱形的周长为8cm，高为1cm，则该菱形两邻角度数比为（）A. 3：1B. 4：1C. 5：1D. 6：18.若+|y-2|=0，则（x+y）2017的值为（）A. B. 1 C. D. 09.如图，菱形ABCD的周长为48cm，对角线AC、BD相交于O点，E是AD的中点，连接OE，则线段OE的长为（）A. 5B. 6C. 7D. 810.在下列命题中，正确的是（）A. 一组对边平行的四边形是平行四边形B. 有一组邻边相等的平行四边形是菱形C. 有一个角是直角的四边形是矩形D. 对角线互相垂直平分的四边形是正方形11.如图，有两棵树，一棵高10米，另一棵高4米，两树相距8米．一只鸟从一棵树的树梢飞到另一棵树的树梢，问小鸟至少飞行（）A. 8米B. 10米C. 12米D. 14米12.已知：如图在△ABC，△ADE中，∠BAC=∠DAE=90°，AB=AC，AD=AE，点C，D，E三点在同一条直线上，连接BD，BE．以下四个结论：①BD=CE；②BD⊥CE；③∠ACE+∠DBC=45°；④BE2=2（AD2+AB2），其中结论正确的个数是（）A. 1B. 2C. 3D. 4二、填空题（本大题共6小题，共18.0分）13.+=______．14.如图，在△ABC中，AB=6，AC=10，点D，E，F分别是AB，BC，AC的中点，则四边形ADEF的周长为______．15.矩形ABCD中，AC、BD交于点O，AB=1，∠AOB=60°，则AD=______．16.如图，有一个长为50cm，宽为30cm，高为40cm的长方体木箱，一根长70cm的木棍______放入（填“能”或“不能”）．17.如图，将正方形OABC放在平面直角坐标系中，O是原点，A的坐标为（1，），则点C的坐标为______．18.如图，在矩形ABCD中，AB=5，AD=3，动点P满足S△PAB=S，则点P到A、B两点距离之和PA+PB的最小值为矩形ABCD______．三、计算题（本大题共1小题，共8.0分）19.计算：（1）-（3+）；（2）（+1）（-1）+-（）0．四、解答题（本大题共4小题，共38.0分）20.在△ABC中，AB=13，BC=10，BC边上的中线AD=12，求AC长．21.如图，四边形ABCD中，AC，BD相交于点O，O是AC的中点，AD∥BC，AC=8，BD=6．（1）求证：四边形ABCD是平行四边形；（2）若AC⊥BD，求▱ABCD的面积．22.如图，在矩形ABCD中，AB=6，AD=8，P是AD上的动点，PE⊥AC，PF⊥BD于F，求PE+PF的值．23.如图1，在矩形纸片ABCD中，AB=3cm，AD=5cm，折叠纸片使B点落在边AD上的E处，折痕为PQ，过点E作EF∥AB交PQ于F，连接BF．（1）求证：四边形BFEP为菱形；（2）当点E在AD边上移动时，折痕的端点P、Q也随之移动；①当点Q与点C重合时（如图2），求菱形BFEP的边长；②若限定P、Q分别在边BA、BC上移动，求出点E在边AD上移动的最大距离．答案和解析1.【答案】A【解析】解：A、被开方数不含分母，被开方数不含开的尽的因数或因式，故A正确；B、被开方数含开的尽的因数或因式，故B错误；C、被开方数含分母，故C错误；D、被开方数含分母，故D错误；故选：A．根据最简二次根式的被开方数不含分母，被开方数不含开的尽的因数或因式，可得答案．本题考查了最简二次根式，最简二次根式的被开方数不含分母，被开方数不含开的尽的因数或因式．2.【答案】C【解析】解：A、原式不能合并，故选项错误；B、原式=3，故选项错误；C、原式=-3，故选项正确；D、原式=|-2|=2，故选项错误．故选：C．A、原式不能合并，错误；B、原式利用平方根的定义计算得到结果，即可找出判断；C、原式利用立方根的定义计算得到结果，即可做出判断；D、原式利用二次根式的化简公式计算得到结果，即可做出判断．此题考查了实数的运算，熟练掌握运算法则是解本题的关键．3.【答案】C【解析】解：已知直角三角形的两直角边为3、4，则第三边长为=5，故选：C．已知直角三角形的两条直角边，根据勾股定理即可求第三边长的长度．本题考查了勾股定理在直角三角形中的运用，正确应用勾股定理是解题关键．4.【答案】D【解析】解：由题意得：x-4≠0，且x-3≥0，解得：x≥3且x≠4，故选：D．根据二次根式有意义的条件可得x-3≥0，根据分式有意义条件可得x-4≠0，再解不等式即可．此题主要考查了分式与二次根式有意义的条件，关键是掌握二次根式中的被开方数是非负数，分式有意义的条件是分母不等于零．5.【答案】D【解析】解：A、∵12+22=5≠22，∴此组数据不能作为直角三角形的三边长，故本选项错误；B、∵12+12=2≠（）2，∴此组数据不能作为直角三角形的三边长，故本选项错误；C、∵42+52=41≠62，∴此组数据不能作为直角三角形的三边长，故本选项错误；D、∵12+（）2=4=22，∴此组数据能作为直角三角形的三边长，故本选项正确．故选：D．根据勾股定理的逆定理对各选项进行逐一分析即可．本题考查的是勾股定理的逆定理，熟知如果三角形的三边长a，b，c满足a2+b2=c2，那么这个三角形就是直角三角形是解答此题的关键．6.【答案】B【解析】解：∵AB∥CD，∴∠F=∠FBA，∵∠ABC平分线为BE，∴∠FBC=∠FBA，∴∠F=∠FBC，∴BC=CF，∴FD=CF-CD=BC-AB=AD-AB=7-4=3cm．故选：B．由AB∥CD可以推出∠F=∠FBA，又∵∠ABC平分线为AE，∴∠FBC=∠FBA，等量代换即可得到∠F=∠FBC，根据等腰三角形的判定知道BC=CF，所以得到FD=CF-CD=BC-AB=AD-AB，由此可以求出DF．本题利用了平行四边形的性质和角的平分线的性质证出△BCF为等腰三角形而求解．7.【答案】C【解析】解：如图所示，根据已知可得到菱形的边长为2cm，从而可得到高所对的角为30°，相邻的角为150°，则该菱形两邻角度数比为5：1．故选：C．根据已知可求得菱形的边长，再根据三角函数可求得其一个内角从而得到另一个内角即可得到该菱形两邻角度数比．此题主要考查的知识点：（1）直角三角形中，30°锐角所对的直角边等于斜边的一半的逆定理；（2）菱形的两个邻角互补．8.【答案】A【解析】解：由题意得，x+3=0，y-2=0，解得x=-3，y=2，所以，（x+y）2017=（-3+2）2017=-1．故选：A．根据非负数的性质列式求出x、y的值，然后代入代数式进行计算即可得解．本题考查了非负数的性质：几个非负数的和为0时，这几个非负数都为0．9.【答案】B【解析】解：∵菱形ABCD的周长为48cm，∴AD=12cm，AC⊥BD，∵E是AD的中点，∴OE=AD=6（cm）．故选：B．由菱形ABCD的周长为48cm，根据菱形的性质，可求得AD的长，AC⊥BD，又由E是AD的中点，根据直角三角形斜边的中线等于斜边的一半，即可求得线段OE的长．此题考查了菱形的性质以及直角三角形斜边的中线的性质．此题难度不大，注意掌握数形结合思想的应用．10.【答案】B【解析】解：A、一组对边平行且相等的四边形是平行四边形，故A选项错误；B、有一组邻边相等的平行四边形是菱形，故B选项正确；C、有一个角是直角的平行四边形是矩形，故C选项错误；D、对角线互相垂直平分的四边形是菱形，故D选项错误．故选：B．本题可逐个分析各项，利用排除法得出答案．主要考查命题的真假判断，正确的命题叫真命题，错误的命题叫假命题．判断命题的真假关键是要熟悉课本中的性质定理．11.【答案】B【解析】解：如图，设大树高为AB=10m，小树高为CD=4m，过C点作CE⊥AB于E，则EBDC是矩形，连接AC，∴EB=4m，EC=8m，AE=AB-EB=10-4=6m，在Rt△AEC中，AC==10m，故选：B．根据“两点之间线段最短”可知：小鸟沿着两棵树的树梢进行直线飞行，所行的路程最短，运用勾股定理可将两点之间的距离求出．本题考查正确运用勾股定理．善于观察题目的信息是解题以及学好数学的关键．12.【答案】C【解析】【分析】此题考查了全等三角形的判定与性质，勾股定理，以及等腰直角三角形的性质，熟练掌握全等三角形的判定与性质是解本题的关键．①由AB=AC，AD=AE，利用等式的性质得到夹角相等，利用SAS得出三角形ABD与三角形ACE全等，由全等三角形的对应边相等得到BD=CE；②由三角形ABD与三角形ACE全等，得到一对角相等，再利用等腰直角三角形的性质及等量代换得到BD垂直于CE；③由等腰直角三角形的性质得到∠ABD+∠DBC=45°，等量代换得到∠ACE+∠DBC=45°；④由BD垂直于CE，在直角三角形BDE中，利用勾股定理列出关系式，等量代换即可作出判断．【解答】解：①∵∠BAC=∠DAE=90°，∴∠BAC+∠CAD=∠DAE+∠CAD，即∠BAD=∠CAE，∵在△BAD和△CAE中，，∴△BAD≌△CAE（SAS），∴BD=CE，故①正确；②∵△BAD≌△CAE，∴∠ABD=∠ACE，∵∠ABD+∠DBC=45°，∴∠ACE+∠DBC=45°，∴∠DBC+∠DCB=∠DBC+∠ACE+∠ACB=90°，则BD⊥CE，故②正确；③∵△ABC为等腰直角三角形，∴∠ABC=∠ACB=45°，∴∠ABD+∠DBC=45°，∵∠ABD=∠ACE∴∠ACE+∠DBC=45°，故③正确；④∵BD⊥CE，∴在Rt△BDE中，利用勾股定理得：BE2=BD2+DE2，∵△ADE为等腰直角三角形，∴DE=AD，即DE2=2AD2，∴BE2=BD2+DE2=BD2+2AD2，而BD2≠2AB2，故④错误，综上，正确的个数为3个．故选：C．13.【答案】4【解析】解：原式=3+=4．故答案为：4．先化简，然后合并同类二次根式．本题考查了二次根式的加减法，掌握二次根式的化简是解答本题的关键．14.【答案】16【解析】解：∵BD=AD，BE=EC，∴DE=AC=5，DE∥AC，∵CF=FA，CE=BE，∴EF=AB=3，EF∥AB，∴四边形ADEF是平行四边形，∴四边形ADEF的周长=2（DE+EF）=16．故答案为16．首先证明四边形ADEF是平行四边形，根据三角形中位线定理求出DE、EF即可解决问题．本题考查三角形中位线定理、平行四边形的判定和性质等知识，解题的关键是出现中点想到三角形中位线定理，记住三角形中位线平行于第三边且等于第三边的一半，属于中考常考题型．15.【答案】【解析】解：∵矩形ABCD，∴AC=BC，AO=CO，BO=DO，∠BAD=90°，∴AO=BO，∵∠AOB=60°，∴AO=BO=AB=1，∴BD=2，∴AD===，故答案为：．根据矩形的性质证得AO=CO=BO=DO，∠BAD=90°，由等边三角形的判定得到AO=BO=AB=1，即BD=2，由勾股定理求得结论．本题主要考查了矩形的性质，等边三角形的判定和性质，勾股定理，证得△ABO是等边三角形是解决问题的关键．16.【答案】能【解析】解：可设放入长方体盒子中的最大长度是xcm，根据题意，得x2=502+402+302=5000，702=4900，因为4900＜5000，所以能放进去．故答案是：能．在长方体的盒子中，一角的顶点与斜对的不共面的顶点的距离最大，根据木箱的长，宽，高可求出最大距离，然后和木棒的长度进行比较．本题考查了勾股定理的应用．解题的关键是求出木箱内木棒的最大长度．17.【答案】（-，1）【解析】解：如图作AF⊥x轴于F，CE⊥x轴于E．∵四边形ABCD是正方形，∴OA=OC，∠AOC=90°，∵∠COE+∠AOF=90°，∠AOF+∠OAF=90°，∴∠COE=∠OAF，在△COE和△OAF中，，∴△COE≌△OAF，∴CE=OF，OE=AF，∵A（1，），∴CE=OF=1，OE=AF=，∴点C坐标（-，1），故答案为（-，1）．如图作AF⊥x轴于F，CE⊥x轴于E，先证明△COE≌△OAF，推出CE=OF，OE=AF，由此即可解决问题．本题考查正方形的性质、坐标与图形的性质、全等三角形的判定和性质等知识，解题的关键是学会添加常用辅助线，构造全等三角形解决问题，属于中考常考题型．18.【答案】【解析】解：设△ABP中AB边上的高是h．∵S△PAB=S，矩形ABCD∴AB•h=AB•AD，∴h=AD=2，∴动点P在与AB平行且与AB的距离是2的直线l上，如图，作A关于直线l 的对称点E，连接AE，连接BE，则BE的长就是所求的最短距离．在Rt△ABE中，∵AB=5，AE=2+2=4，∴BE===，即PA+PB的最小值为．故答案为：．，得出动点P在与AB平行且与AB的距离是2首先由S△PAB=S矩形ABCD的直线l上，作A关于直线l的对称点E，连接AE，连接BE，则BE的长就是所求的最短距离．然后在直角三角形ABE中，由勾股定理求得BE的值，即PA+PB的最小值．本题考查了轴对称-最短路线问题，三角形的面积，矩形的性质，勾股定理，两点之间线段最短的性质．得出动点P所在的位置是解题的关键．19.【答案】解：（1）原式=--=-；（2）原式=3-1+2-1=1+2．【解析】（1）先把各二次根式化简为最简二次根式，然后去括号后合并即可；（2）利用平方差公式和零指数幂的意义计算．本题考查了二次根式的混合运算：先把各二次根式化简为最简二次根式，然后进行二次根式的乘除运算，再合并即可．在二次根式的混合运算中，如能结合题目特点，灵活运用二次根式的性质，选择恰当的解题途径，往往能事半功倍．20.【答案】解：∵AD是中线，AB=13，BC=10，∴BD=BC=5．∵52+122=132，即BD2+AD2=AB2，∴△ABD是直角三角形，则AD⊥BC，又∵BD=CD，∴AC=AB=13．【解析】在△ABD中，根据勾股定理的逆定理即可判断AD⊥BC，然后根据线段的垂直平分线的性质，即可得到AC=AB，从而求解．本题主要考查了勾股定理的逆定理与线段的垂直平分线的性质，关键是利用勾股定理的逆定理证得AD⊥BC．21.【答案】解：（1）∵O是AC的中点，∴OA=OC，∵AD∥BC，∴∠ADO=∠CBO，在△AOD和△COB中，，∴△AOD≌△COB，∴OD=OB，∴四边形ABCD是平行四边形；（2）∵四边形ABCD是平行四边形，AC⊥BD，∴四边形ABCD是菱形，∴▱ABCD的面积=AC•BD=24．【解析】（1）由已知条件易证△AOD≌△COB，由此可得OD=OB，进而可证明四边形ABCD是平行四边形；（2）由（1）和已知条件可证明四边形ABCD是菱形，由菱形的面积公式即可得解．此题主要考查平行四边形的判定和菱形的判断和性质．熟练掌握各种特殊四边形的性质定理和判定定理是解题的关键．22.【答案】解：连接OP，∵四边形ABCD是矩形，∴∠DAB=90°，AC=2AO=2OC，BD=2BO=2DO，AC=BD，∴OA=OD=OC=OB，∴S△AOD=S△DOC=S△AOB=S△BOC=S矩形ABCD=×6×8=12，在Rt△BAD中，由勾股定理得：BD==10，∴AO=OD=5，∵S△APO+S△DPO=S△AOD，∴×AO×PE+×DO×PF=12，∴5PE+5PF=24，∴PE+PF=，【解析】根据矩形的性质和三角形的面积求出S△AOD=S△DOC=S△AOB=S△BOC=S矩形=×6×8=12，根据勾股定理求出BD，求出AO、DO、根据三角形面积公ABCD式求出即可．本题考查了三角形面积，矩形的性质，勾股定理的应用，注意：矩形的对角线互相平分且相等，等底等高的三角形面积相等．23.【答案】（1）证明：∵折叠纸片使B点落在边AD上的E处，折痕为PQ，∴点B与点E关于PQ对称，∴PB=PE，BF=EF，∠BPF=∠EPF，又∵EF∥AB，∴∠BPF=∠EFP，∴∠EPF=∠EFP，∴EP=EF，∴BP=BF=EF=EP，∴四边形BFEP为菱形；（2）解：①∵四边形ABCD是矩形，∴BC=AD=5cm，CD=AB=3cm，∠A=∠D=90°，∵点B与点E关于PQ对称，∴CE=BC=5cm，在Rt△CDE中，DE==4cm，∴AE=AD-DE=5cm-4cm=1cm；在Rt△APE中，AE=1，AP=3-PB=3-PE，∴EP2=12+（3-EP）2，解得：EP=cm，∴菱形BFEP的边长为cm；②当点Q与点C重合时，如图2：点E离点A最近，由①知，此时AE=1cm；当点P与点A重合时，如图3所示：点E离点A最远，此时四边形ABQE为正方形，AE=AB=3cm，∴点E在边AD上移动的最大距离为2cm．【解析】（1）由折叠的性质得出PB=PE，BF=EF，∠BPF=∠EPF，由平行线的性质得出∠BPF=∠EFP，证出∠EPF=∠EFP，得出EP=EF，因此BP=BF=EF=EP，即可得出结论；（2）①由矩形的性质得出BC=AD=5cm，CD=AB=3cm，∠A=∠D=90°，由对称的性质得出CE=BC=5cm，在Rt△CDE中，由勾股定理求出DE=4cm，得出AE=AD-DE=1cm；在Rt△APE中，由勾股定理得出方程，解方程得出EP=cm 即可；②当点Q与点C重合时，点E离点A最近，由①知，此时AE=1cm；当点P与点A重合时，点E离点A最远，此时四边形ABQE为正方形，AE=AB=3cm，即可得出答案．本题是四边形综合题目，考查了矩形的性质、折叠的性质、菱形的判定、平行线的性质、等腰三角形的判定、勾股定理、正方形的性质等知识；本题综合性强，有一定难度．。
2017-2018学年高中数学专题03破译三角函数图像变换问题特色专题训练新人教A版必修4
12专题03破译三角函数图像变换问题、单选题1.【湖北省咸宁市2018届高三重点高中11月联考】若函数f x =cos2x ， g x ]=sin j 2x -石【答案】【解析】/(+COS 2JC :+sin I 2x —— =cos2x4JT曲线 严 列乂）向左平移壬个单位长度后的解折式为:6本题选择E 选项.2•【山西省芮城中学 2018届高三期中】函数 f （x ） = Asin （G0x + W ）（其中A A O ，申 <:丄）的图象过点2,0 ,—, -1，如图所示，为了得到 g x ；=cos2x 的图象，则只要将 f x 的图象（）312曲线B .曲线y 二g x 向左平移 C .曲线 y = f x 向右平移 D .曲线 丄个单位长度后得到曲线6■JT个单位长度后得到曲线6—个单位长度后得到曲线12—个单位长度后得到曲线126丿即/(x )+^(x) =A. 向右平移二个单位长度6B. 向右平移个单位长度1233【答案】D+ 卩= --- 2A H (A:E Z) — +2lac(k e Z) 23It和八、 .K-(P — — > J (x) = SID I 2x4-—C.向左平移'个单位长度 6D.向左平移个单位长度12【解析】12 3TSJD3it71 1C — cos2x — sin 2无+—2 3二肚2 "12点睛：已知函数 y=Asi nicx 」‘LB （A -0,八＞0）的图象求解析式 (1)y max — y min y max yminA, B =一 2由函数的周期T 求co ,T = 利用“五点法”中相对应的特殊点求:.【广东省执信中学 2017-2018学年高二上学期期中】将函数 y=Sin j 2x ' 的图象向右平移 一个单位2长度，所得图象对应的函数■: 7 二■: 7 二A 在区间［,］上单调递减B 在区间［,］上单调递增12 12 12 12J ［ JEJ ［ J ［C.在区间^-,-］上单调递减D在区间［wy 上单调递增【答案】B兀【解析】将函数向右平移个单位长度得:((y =sin 2 x 一一J T(二 sin I 2x- 3 ，所以当7 2 二二二时，2x ，—12 3IL 2 24 •【陕西省西安市长安区2018届高三上学期质量检测】把函数.的图象上个点的横坐标缩短到原61 TI来的（纵坐标不变），再将图象向右平移个单位，那么所得图象的一个对称中心为23A B.c D (%)4【答案】D【解析】根据题意函数尸血时勺）的图象上个点的横坐标缩短到原来的k纵坐标不知，可得厂血伍昇6 2I创再将團象向右平移*单位，可得：V J sin|2 （x）+ -] = sin —）- ~cos2x^3 3 6 22K ■- + kn*2可得：x«- + -kn, kE疋"4 2当k・0时，可得对称中点为（：0）.4故选ZZf x二cosi2x • 的图象，只需将函数I 6丿g x 二sin2x 的图象（）A向左平移一个单位6C. 向左平移二个单位3【答案】A B向右平移一个单位6D向右平移少个单位3，所以函数单调递增，故选 B.125.【山东省莱芜市2018届高三上学期期中】要得到函数f x i = sin 「x ■ ' （其中）的图象如图2所示，为了得到 y 二cos 「x 的图象，只需把 y 二f x 的图象上所有点（）【解析】g x 二 sin2x =cos所以向左平移n 二26 个单位，选A2 66 •【辽宁省沈阳市交联体2018届高三上学期期中】函数C.向左平移二个单位长度6【答案】AT 7 7T更jr 【解析】根据函数的^m-=—4 122九"所以：T^JL9<D=——=2>当沪彳时，函数fyr jr即：/ ( —) =sin (2x — +<p) =0.解得所以:f (x) =sin( 2x+ —).要得到y=cos2x的图象只需将函数 f (x) =sin(2x< )向左平移.个单位长度,3 12n 兀即y=sin (2x+ + ) =cos2x.6 3故选：A.点睛：已知函数y=Asi n[cx」‘LB(A 0^ 0)的图象求解析式(1 )2■:人=涯沁，ymin.(2)由函数的周期T求,T =2 2 ⑷利用“五点法”中相对应的特殊点求:.【豫西南部分示范性高中2017-2018年高三年级第一学期联考】已知函数f X =sin 2x，为得到B.向右平移.个单位长度12D.向右平移二个单位长度6A向左平移.个单位长度123A 向左平移二个单位长度 B.向左平移.个单位长度612C.向右平移二个单位长度D.向右平移二个单位长度612【答案】A【解析】函数 g x 二 cosi2x sin ；2xsin 12x —• I 6丿 126丿 J 3丿函数f （x ）=s in ”2x +工1= sin |2 " x +丄1+》=sin " 2x +2兀】=g （ x ），是向左平移了工个单位长 2 V 3丿 [16丿3 一 V 3丿“丿 6度。
2017-2018年天津市河西区九年级上学期物理期中试卷与参考答案
2017-2018学年天津市河西区九年级（上）期中物理试卷一、选择题（共10小题，每小题3分，满分30分）1．（3分）下列常见的自然现象，能用分子热运动知识解释的是（）A．春天，柳枝吐芽 B．夏天，山涧瀑布C．秋天，菊香满园 D．冬天，雪花飘飘2．（3分）我国北方楼房中的“暖气”用水作为介质，把燃烧时产生的热量带到房屋中取暖，用水做运输能量的介质是因为水的（）A．比热容较大B．内能较大C．质量较大D．密度较大3．（3分）如图所示的“吸引现象”中，与静电无关的是（）A．图甲，梳头后塑料梳子能吸引小纸屑B．图乙，干燥天气，衣服表面容易吸附灰尘C．图丙，用气球摩擦头发，头发会随气球飘起D．图丁，两个铅柱底面削平挤压后能粘在一起4．（3分）四冲程内燃机工作时，将内能转化成机械能的冲程是（）A．吸气冲程B．压缩冲程C．做功冲程D．排气冲程5．（3分）如图是滑动变阻器的结构和连入电路的示意图，当滑片P向右滑动时，连入电路的电阻变小的是（）A．B．C．D．6．（3分）某学校的前、后两个门各装一个开关，传达室内有红、绿两盏灯和电池组，若前门来人闭合开关时红灯亮，后门来人闭合开关时绿灯亮，图中的电路图符合要求的是（）A．B．C．D．7．（3分）如图所示，闭合开关后，能正确测出小灯泡L1两端的电压的电路是（）A．B．C．D．8．（3分）已知电阻R1和R2阻值的大小关系为R1＜R2，在图所示的四个电路中，电流表示数最大的是（）A．B．C．D．9．（3分）如图所示，两个相同的验电器A和B，A带正电，B不带电，用带有绝缘柄的金属棒把A和B连接起来，发现A金属箔张角变小，B金属箔张开，下列说法正确的是（）A．A金属箔张角变小，说明它失去电子B．金属棒中瞬间电流的方向从B流向AC．正电荷从A向B定向移动，形成瞬间电流D．B金属箔张开，说明B金属箔带上正电荷10．（3分）如图所示电路中，电源电压恒定，定值电阻R的阻值为10Ω，闭合开关后，将滑动变阻器的滑片从某个位置向右滑动一段距离，使变阻器阻值增加了5Ω，电流表示数减少了0.04A，则电压表示数的变化是（）A．增加了0.2V B．减少了0.2V C．增加了0.4V D．减少了0.4V二、选择题（共3小题，每小题3分，满分9分）11．（3分）下列说法中正确的是（）A．物体的内能增加，温度一定升高B．冰块温度虽然低，但也具有内能C．温度越高的物体所含的热量一定越多D．固体很难被压缩，是由于分子间存在斥力12．（3分）如图所示电路，闭合开关S1、S2，下列对电路的分析正确的是（）A．灯L1与L2并联B．电流表A1只测L1的电流C．当开关S2断开时，通过L1的电流不变D．当开关S2断开时，电流表A1的示数变小13．（3分）仅将灯L1、L2连接在电压为U0的电源上，此时两灯均发光。
2017_2018学年天津河北区初二上学期期中语文试卷及详解(PDF版)
（1） 简析第一段中划线句子的描写手法及表达效果。 （2） 第⑫段中划线句子为什么说“我”对常远的名字熟悉而又陌生？ （3） 联系内容分析，常远的那些品质让“我”和老李觉得“后生可畏”？ （4） 小说主人公是常远，作者却以大部分内容写“我”和老李，这样写又什么好处？
（节选自《徐霞客游记》） 【注】①许：左右。里许：一里左右。②危：高。③三姑：地名。④幔亭峰：山峰名。 （1） 解释下面句中加粗词语
1 然业已上登 2 不及返顾 （2） 下列对文中画线部分的断句，正确的一项是 A. 土人新以木板循岩为室/曲直高下/随岩婉转 B. 土人新/以木板循岩为室/曲直高下随岩婉转 C. 土人新以木板循岩/为室曲直高下/随岩婉转 D. 土人新/以木板循岩为室曲直/高下随岩婉转 （3） 作者前往“换骨岩”途中俯瞰到什么“佳致”？请简要概括。
53%的受访者表示，童年时期曾经遭受过性侵。
关心社会，对于已经功成名就的阿米尔·汗而言，除了让他被人称之为“印度的良心”外，并没
有带来什么实际好处。相反，因为这份“炽热的良心”，他得到不少麻烦和损失。他惹怒过地方政
府和印度教激进团体，并且因此丧失了印度电子市集巨头Snapdeal的代言；他的人身安全也因此
三、文学类文本阅读
11 阅读下面的文章，回答下题。 后生可畏 刘斌立
①我第一次去鉴睿律师楼，就注意到了前台旁边多了一张不怎么和谐的小桌子。一个大男孩 模样的小伙子，睡眼惺忪地在那捧着厚厚的《刑法》，有一页没一页的翻着。
②我问了问律师楼的合伙人李信，他一脸嬉笑地回答：这孩子他爸是我们律师楼的大客户， 也是老朋友了。他想让他儿子考律师，非得要我们把这孩子安排在这打杂，一边让他看书备考。 其实我们啥事也没给他安排，让他自己在那天天待着呢。
2017-2018学年天津市和平区九年级(上)期中物理试卷(含答案)
2017-2018学年天津市和平区九年级（上）期中物理试卷一、选择题（共10小题，每小题3分，满分30分）1．（3分）以下说法正确的是（）A．如图甲，量筒里上方清水和下方蓝色硫酸铜溶液静置几天后，界面模糊，主要说明扩散现象的原因是分子引力B．如图乙，酒精和水混合后总体积变小，主要说明分子是不停运动的C．如图丙，玻璃片重为G，当测力计显示的力比G大很多时，仍然不能将玻璃片从水面提起。
主要说明水分子和水分子之间有引力，玻璃分子与玻璃分子之间有引力D．如图丁，两位同学分别握住处于原长的弹簧的两端，可以将人比作组成某些物质的分子，物质被压缩，分子间表现出斥力；物质被拉伸，分子间表现为引力2．（3分）小明将铁丝快速弯折十余次，铁丝弯折处的温度会升高，以下四个事例中能量转化与之相同的是（）A． B．C．D．3．（3分）塑料梳子梳头发时，头发容易被梳子“粘”起，下列现象中“粘”的原因与其相同的是（）A．用硬纸片盖住装满水的玻璃杯，倒置后，纸片“粘”在杯口上B．两个铅杆底面削平挤压后能“粘”在一起C．电视里讲解棋类比赛时，棋子可以“粘”在竖直悬挂的棋盘上D．在干燥的天气里，化纤布料的衣服容易“粘”在身上4．（3分）如图所示的电路中，开关S闭合后，两个灯泡都发光的是（）A．B．C．D．5．（3分）如图所示，与实物图一致的电路图是（）A．B．C．D．6．（3分）普通玻璃杯中装满一杯沸水，放在常温下冷却，最后放出的热量约为（）A．102焦B．103焦C．105焦D．106焦7．（3分）如图是滑动变阻器阿迪结构和连入电路的示意图，当滑片P向右滑动时，连入电路的电阻变大的是（）A． B．C．D．8．（3分）两盏灯组成串联电路，闭合开关后，灯L1较亮，灯L2较暗，则通过两盏灯的电流（）A．I1＞I2B．I I=I2C．I1＜I2D．无法判断其大小9．（3分）如图，用导线连接使灯L1和L2组成并联电路的正确方法是（）A．分别连接A、B和C、E B．分别连接A、B和D、EC．分别连接A、C和B、E D．分别连接A、C和C、E10．（3分）如图所示电路中，电源电压恒定，定值电阻的阻值为5Ω，闭合开关后，将滑动变阻器的滑片从某个位置向右滑动一段距离，使变阻器阻值增加了10Ω，电流表示数减少了0.04A，则电压表示数的变化是（）A．增加了0.4V B．减少了0.4V C．增加了0.2V D．减少了0.2V二、选择题（共3小题，每小题3分，满分9分）11．（3分）如图所示，两个相同的验电器A和B，A带正电，B不带电，用带有绝缘柄的金属棒把A和B连接起来，下列说法正确的是（）A．A金属箔张角变小，说明它得到电子B．B金属箔张角变大，说明两金属箔带上同种电荷C．正电荷从A向B定向移动，形成瞬间电流D．自由电子从B向A定向移动，形成瞬间电流12．（3分）如图所示是一种自动测定油箱内油量的装置，滑动变阻器R的金属片跟滑杆（杠杆）相连，从电流表示数大小就可知道油箱内油量的多少。
天津市实验中学2018_2019学年高一数学上学期期中试卷含解析
天津市实验中学2018-2019高一上学期期中数学试题、选择题1.已知全集 ' •，集合 •：，上 ，则二竝门匕=() A. B.C. D.【答案】A【解析】【分析】 根据集合的交集与补集的概念求解即可. 【详解】 *、「， ■ -■:』，所以选A. 【点睛】本题考查集合的交集与补集 ，考查基本求解能力，属基础题.2. 下列各组函数中，表示同一函数的是() A. X = d B.-:宀.li-AC. 八：「I ' .■- ID. :'、： ■ :J 【答案】D【解析】【分析】本题只需根据定义域是否相同进行判断即可.【详解】A. i — ■j：「’ ■■； ：i , :二二,C. •.、： 八 I 、• ： . ■. ; •¥.、: I , D. .：、二、. ■- • J ：；, 因此选D.【点睛】本题考查函数定义域 ，考查基本求解能力，属基础题.C.11【答案】B 3.函数『的定义域是(3x- 1A.【解析】【分析】 根据分母不为零，偶次根式下被开方数非负列不等式组，解得定义域【答案】C【解析】【分析】 根据分数指数幕化简即可,选C. 宀 _ 8i a y【点睛】本题考查分数指数幕运算 ，考查基本求解能力，属基础题.5・设，， ，则 的大小关系是（A. a < b < cB. c < b < aC. b < a < cD. b < c < a【答案】B【解析】【分析】先确定三个数的范围，再确定大小关系 •【详解】因为 ，I ： ! 1： F 丨：'.丨：， ，所以，选B. 【点睛】本题考查根据指数函数与对数函数性质比较大小 ，考查基本分析判断能力 题.6.函数在定义域内的零点可能落在下列哪个区间内（） A. B. C. D.【答案】C【解析】【详解】由题意得 logix-1 >0 3x-l t 0 1厂 1'.三；■.， 因此定义域为；：：：「■-■. |,选B.【点睛】本题考查函数定义域，考查基本求解能力 ,属基础题.4.化简 -3 4（其中 ）的结果是（2a A — B A.恥 B. 2a 16C. D. 4 4 81b a，属基础【分析】根据零点存在定理进行判断•【详解】因为2 :：^ ：：1.?宀：--.：：■!二.：：■',所以根据零点存在定理得在:、-J •-；:•心,，选C.【点睛】本题考查零点存在定理，考查基本分析求解能力，属基础题.7. 某公司为激励创新，计划逐年加大研发资金投入，若该公司2017年全年投入研发资金130万元，在此基础上，每年投入的研发资金比上一年增长，则该公司全年投入的研发资金开始超过200万元的年份是（）（参考数据：—匸■-）A. 2020 年B. 2021 年C. 2022 年D. 2023 年【答案】B【解析】【分析】根据条件列不等式，解得结果.【详解】由题意求满足I心匚最小n值，由mi 4 得11-1lg[ 130（1 + 12%）]> lg200 -lgl3 + 2+ （n-l）lgl.l2 > lg2 + 21'■: 1 - ■'- '■ ：1\ 开始超过200 万元的年份是2017+5-仁2021,选B.【点睛】本题考查指数函数应用与解指数不等式，考查基本求解能力，属基础题.（（2a~ 1X 十a.x > 28. 已知函数是咱上的减函数，则实数的取值范围是（）（2// 2!/ hD.A. [?卫B.㈣C.（阪【答案】C【解析】【分析】根据分段函数单调性列不等式，解得结果.2a- 1 < 0【详解】又题意得°<a<1■■0<a<^,选C.2（2a-l） + a<log A l 5【点睛】本题考查分段函数单调性应用，考查基本分析求解能力，属基础题.9. 已知函数，则关于的不等式的解集为（）A.忙工B.:—J]."-：C. 'D. - '-J'- J-【答案】B【解析】【分析】先研究函数单调性与奇偶性，再根据奇偶性与单调性化简不等式，最后解分式不等式得结果.【详解】因为i' \ IV.、、厂•. ■所以：'•* ：为偶函数,当时单调递减，所以：',"I L「 L ,1 1 1 「、丄-> 2, - - <m < 了且m t0,选B.【点睛】本题考查利用函数单调性与奇偶性解不等式，考查基本分析求解能力，属基础题. 10. 函数满足：•，且’，当！时，土工T—、」打"X时,血）最小值为（）1 1 1 LA. B. 7 C. D.【答案】A【解析】【分析】先根据叽「-丁匚〕求得■' ■ - -■「I时，的解析式,再根据二次函数性质求最小值.【详解】因为:'■- - 'I ■-',所以当■' ■ - -■ -「时：' 1■'-,因为当时，J 一二；• .1 ,所以当■■ ■- - -• - •咐、：":.：■ ■:,即当■时取最小值,选A.【点睛】本题考查函数解析式以及二次函数最值，考查基本分析求解能力，属基础题.二、填空题11. 已知集合丸={1,3,局，B = {5仁A u B = a，贝y m= ________________ 。
天津市河西区天津市实验中学2020-2021学年高二上学期10月月考物理试卷含答案
2020－2021学年天津实验中学高二年级上学期10月份月考物理试卷一．选择题（共5小题）1.学习物理要正确理解物理规律和公式的内涵．你认为下列理解正确的是（）A.根据库仑定律公式F＝k可知，两个电荷的距离趋于零时，库仑力为无穷大B.根据电荷守恒定律可知，一个与外界没有电荷交换的系统，电荷的代数和不变C.由匀强电场电势差与电场强度的关系U＝Ed可知，匀强电场中任意两点间的电势差与这两点间的距离成正比D.根据电容器的电容的定义式C＝可知，电容器的电容与它所带电荷量成正比2.相距为L的点电荷A、B带电荷量分别为+4q和﹣q，如图所示，今引入第三个点电荷C，使三个点电荷都处于平衡状态，则C的电荷量和放置的位置是（）A.﹣q，在A左侧距A为L处B.﹣2q，在A左侧距A为处C.+4q，在B右侧距B为L处D.+2q，在B右侧距B为处3.如图所示，在球壳内部球心放置带电荷量为+Q的点电荷，球壳内有A点，壳壁中有B点，壳外有C点，则下列说法正确的是（）A．A、B两点场强均为零，C点场强不为零B．A、C两点场强不为零，B点场强为零C．A点场强不为零，B、C两点场强为零2D ．A 点场强为零，B 、C 两点场强不为零4.一平行板电容器充电后与电源断开，负极板接地。
两板间有一个正试探电荷固定在P 点，如图所示，以C 表示电容器的电容、E 表示两极板间的电场强度、φ表示P 点的电势，E p 表示正电荷在P 点的电势能，若正极板保持不动，将负极板缓慢向右平移一小段距离x 0的过程中，各物理量与负极板移动距离x 的关系图象正确的是图中的（）A．B ．C．D．5.如图所示，无穷大的匀强电场（图中未画出）与矩形ABCD 在同一平面内，AB =2cm 、BC =1cm 。
取C 点的电势为0，一电子在A 点的电势能为3eV ，该电子以2eV 的初动能从C 点沿某一方向发射出来，刚好可以到达B 点，且在B 点的动能为5eV ，则下列说法正确的是（）A ．ϕA =3VB ．U CB =3VC.电场强度的大小为300V/mD.电子以相同的初动能从C 点沿其他方向发射，有可能运动到D 点二．多选题（共5小题）6.平行板电容器两极板间距较大或者两极板面积较小时，两极板之间电场线如图所示（下极板带正电）．虚线MN是穿过两极板正中央的一条直线．关于此电场，下列说法中正确的是（）A．平行金属板间的电场为匀强电场B．a点处的电场强度大于b点处的电场强度C.若将一负电荷从a点移到b点，其电势能减小D.若将一正电荷从电场中的c点由静止释放，它必将沿着电场线运动d点7.如图所示，两个带等量异种电荷的点电荷连线垂直于纸面（图中未画出），纸面内O点是这两点电荷连线的中点，A、B、C为纸面内一条直线上的三个点，该直线与以O点为圆心的一个圆相交于A、B两点。
2017-2018市统考高二上学期英语期中考试卷答案
太原市2017~2018学年第一学期高二年级阶段性测评英语试卷第一部分听力理解（略）第二部分英语知识运用（共两节，满分25分）第一节单选填空（共10小题；每小题1分，满分10分）从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
答案写在答题卡上。
16. Don’t turn a deaf ear to the advice which will make a _______ to your future.A. messB. differenceC. fussD. remark解析：本题固定搭配，题干中“turn a deaf ear to”译为“置若罔闻，装没听到”，原句译为“ 不要对那些建议置若罔闻”，后面加了一个定语从句，译为“建议会对你的未来…”故选B。
A项make a mess搞得乱七八糟；B项有影响，起主要作用；C项大惊小怪，大做文章；D项做记号，做标记。
17. I’m so _______ to the teacher who gave me lots of help.A. availableB. essentialC. qualifiedD. grateful解析：本题考查形容词词义辨析，根据句意“我对给我帮过很多忙的老师感到如此的…”可知选D感激的。
A 可获得的；B基本的，必要的；C有资格的，胜任的；D感激的18. Whatever weather it is, I always see the policeman ________ his place and direct the traffic.A. take upB. make upC. look forD. stand for解析：本题考查动词词组词义辨析，根据句意“无论天气如何，我总是看到警察…他的岗位并且指挥交通”因此选A 从事，占据，把…继续下去。
B项make up是编造，化妆；C项look for是寻找；D项stand for是代表，象征，主张19.If you miss this chance, it might be years ________ you get another one.A. asB. beforeC. sinceD. after解析：本体考察时间状语从句引导词，根据固定句型：it be 时间段before…“要多久才…”可得出应该是B；而A 是随着；C是自从；D是在…之后。
2020-2021学年天津市河西区实验中学高一上学期第一次月考英语试题(解析版)
天津市河西区实验中学2020-2021学年度高一第一学期第一次月考英语试卷一、听力：第一节1. Where does the conversation probably take place?A. In the clothes shopB. In the laundryC. At home2. What time does Mary get off work?A At 6:00pm B. At 5: 30 pm C. At 5:00 pm3. What is the woman complaining about?A. The man never eats up his breakfastB. The man never does the cleaning or washingC. The man never does the washing-up after eating breakfast4. What will the two speakers probably have for lunch?A. Meat and eggsB. Potatoes and saladC. Potatoes and meat5. Why does the woman want to see a film?A. She wants to relaxB. The film is very interestingC. She has nothing to do第二节6. When will the dinner begin?A. At 5:30B. At 6:00C. At 6;307. How many people will come to the dinner except the man tonight?A. NineB. TenC. Eleven8. What does the man prefer?A. A table on the platformB. A seat next to the windowC. A table next to the window9. What does the man plan to major in?A. ManagementB. EngineeringC. Business10. Why did the woman work like a crazy in the summer?A. To cover most of her costsB. To repay a student loanC. To support her poor family11. What is the woman going to do next month?A. Go to workB. Go to a job fairC. Go abroad12. In which country were ices eaten first?A. ChinaB. RomeC. Italy13. What did Nero order the runners to run to the mountains to do?A. to get some nutsB. To get snowC. To freeze orange juice14. Who opened the first successful coffee shop serving ice cream?A. Francesco ProcopioB. Nancy JohnsonC. Jacob Flusell15. What was Nancy Johnson good at?A. Making ice creamB. BusinessC. Machines二、单选：1. --- Let me help you cross the street.--- _______! I’m not that old.A. Come onB. No wayC. Take your timeD. Go ahead【答案】A【解析】【详解】考查情景交际。
天津河西区实验中学2022-2023学年高一上学期期末英语试题
天津河西区实验中学2022-2023学年高一上学期期末英语试题一、单项选择1. —What about the two of us going downtown?—________. I hate spending time hanging around.A．That suits me fine B．Well, that’s the last thing Iwill doC．It depends on theweatherD．Whynot2. There was plenty of time. You ________.A．mustn’t hurry B．mustn’t have hurried C．needn’t have hurried D．needn’t hurry3. It is necessary that we keep the young generation ________ of the current affairs. A．being informed B．informing C．to inform D．informed4. ________ helping me better understand American culture, this visit also helps me greatly improve my spoken English.A．On top of B．In case of C．Thanks to D．Instead of5. _____ we have specific tasks to do, our leader makes sure we don’t lose sight of the big picture.A．Until B．Unless C．Although D．Whether6. Jane has made up her mind to ________ teaching as her profession after she graduates from college.A．clean up B．take up C．pick up D．put up7. So far, large amounts of money ________ for those whose houses were damaged by the powerful typhoon (台风).A．have been collected B．has been collected C．was collected D．were collected8. ________ the weather will not clear up until next week is bad news for us.A．As B．IfC．Whether D．That9. There is a great evidence ______ that music activities engage different parts of thebrain.A．indicate B．to indicate C．to be indicating D．indicating 10. I wish to thank Mrs. Smith, without ______help I would never make so muchprogress.A．who B．whose C．whom D．which11. —I want you both to be on your best ______ at Grandad’s.—OK, we will, Mum.A．opportunity B．struggle C．behavior D．purpose12. ________has a good knowledge of physics and history is qualified for the position. A．No matter who B．Whomever C．Whoever D．Those who13. My teacher _____ me to try ice hockey, because I could skate very well. A．assured B．represented C．persuaded D．attacked14. --- The Captain is definitely a touching movie, ______ adapted from a true story.--- Exactly. Captain Liu puts the safety of passengers in the first place.A．one that B．which C．the one D．one15. Melissa, ________ the alarm clock for 6 o’clock, or you will oversleep and be late for the train.A．set B．setting C．sets D．to set二、完形填空On a beautiful Wednesday morning, I awoke in a shared room in the hospital. Long curtains had been pulled around my bed, 16 me from the other patients. I had broken my right leg the night before. It was still summer, but mine was 17 .On the other side of my bed curtain, I heard a patient cheerfully 18 every nurse as they entered the room, as if welcoming each into his home. He called them by name and asked 19 about their families. I never heard this man whisper a word about his own 20 .That night I wept (哭泣). I thought about how my schoolwork would be 21 and all the things I could, temporarily, no longer do.I awoke early the next morning, 22 of the uncertain days ahead. The 23 of the room was s oon broken by a quiet voice from behind the curtain. “Good morning,” the voice said calmly, clearly 24 at me. “Are you doing okay?”The man must have heard my 25 the night before. Hesitantly, I responded. From there he drew me into a(n) 26 . We talked endlessly through the curtain to pass the time, without seeing each other. Every day he would greet me with cheer, “Good morning, Caroline. You are going to 27 this.”This stranger became my cheerleader, as if it was his mission to lift me up frommy 28 . He 29 me to find the best in all difficult circumstances. Life is not always easy, he would say, but you have to 30 and look for the positive.Days later when the curtain was drawn, I saw this 31 old man for the first time. 32 his own ill health, he continued to coach me from his hospital bed in the days that followed.My discharge papers (出院证明) were finally signed and I waited 33 to get home. As I was wheeled out of the room, I said my final goodbye to the old man.I often think of my exceptional roommate and of what a(n) 34 he was to me. The impact he made during those difficult days in hospital still 35 .Thank you for being my ray of sunshine!16.A．driving B．separating C．taking D．rescuing17.A．next B．back C．over D．here18.A．comforting B．assisting C．praising D．greeting19.A．sincerely B．hopefully C．thankfully D．confidently 20.A．attitude B．pain C．threat D．effort 21.A．ignored B．understood C．recommended D．affected 22.A．ashamed B．fond C．scared D．proud 23.A．silence B．agreement C．connection D．limit 24.A．nodded B．directed C．laughed D．recorded 25.A．cheer B．appeal C．cry D．comment26.A．conflict B．adventure C．operation D．conversation 27.A．get through B．come across C．care for D．focus on 28.A．astonishment B．craziness C．sadness D．embarrassment 29.A．promised B．ordered C．permitted D．encouraged 30.A．get away B．carry on C．check out D．make up 31.A．strict B．ambitious C．optimistic D．honest 32.A．Despite B．Beyond C．Besides D．Until 33.A．doubtfully B．curiously C．eagerly D．politely 34.A．opportunity B．gift C．dream D．choice 35.A．differs B．spreads C．occurs D．stays 三、阅读理解Chinese Language and Culture Day CampJuly 25-29, 2014Monday - Friday, 9:00 a.m. - 3:30 p.m.For ages 7-16Location: Confucius Institute, 10 Park Street, AlfredCamp Fee: $150 (includes lunch)Enrollment (注册) Deadline: July 11, 2014ProgramThe AU Confucius Institute Chinese Language and Culture Day Camp offers a great introduction to Chinese language and culture in an exciting, fun-filled, interactive environment. The small-class format ensures that each camper gets enough individual attention. This program features:● Chinese Language Classes● Traditional Chinese arts● Calligraphy● Crafts● Songs● Dance● Games● Cooking● Daily supervised cafeteria-style lunch in the University Dining HallFaculty (教员)Top quality instruction is provided by distinguished members of the AU Confucius Institute faculty who are experienced teachers, fluent in both English and Chinese.Who Can Attend?This week-long, day camp is for students aged 7-16 who wish to participate in a fun, dynamic summer experience in Chinese language and culture. For classes, students will be divided into younger and older age groups.ScheduleStudents must arrive at the Confucius Institute each day by 9:00 a.m. and must be picked up at 3:30 p.m. Morning lessons will focus on Chinese language classes, while afternoons will be filled with hands-on cultural activities. Instructors will bring students to the Powell Campus Center dining hall for a supervised, cafeteria-style lunch each day.How to EnrollPlease finish the enrollment form and return by July 11, with your $150 payment, Office of Summer Programs, Alfred University, Saxon Drive, Alfred, NY 14802. Checks should be made payable to Alfred Chinese Language and Culture Day Camp University. Major credit cards are also accepted. (If paying by credit card, feel free to fax enrollment form to us at 607-871-2045.)Cancellation PolicyFull refunds (退款) will be made for cancellations received by 3:30 p.m. on July 22, 2014. We can’t make refunds to students who cancel after July 22 because the amount of materials purchased, meal counts and classroom spaces are based upon the number of students expected and cannot be changed after that time.Questions?For further information, please contact the Office of Summer Programs via email or by calling 607-871-2612.36. Why is the class in small size?A．To give each camper specific care. B．To charge a higher fee each camper. C．To save more room for more students. D．To create an interactive atmosphere.37. What CAN’T you learn in Chinese Language and Culture Day Camp? A．Cooking. B．Crafts. C．Martial arts. D．Traditional arts.38. It can be inferred that campers ________.A．have to bring their own lunch each day B．will learn about Chinese language all dayC．must stay in the camp for a week day and night D．should come to and leave the camp every day39. If you want to get back you full fee, you have to give up ________. A．before 3:30 p.m. July 22 B．before 9:00 a.m. July 11 C．before 3:30 a.m. July 25 D．before 9:00 a.m. July 29 40. What information can we learn from the text?A．Pay $15 before you enroll. B．Students will be divided into groups by age.C．You can fax your questions to theoffice.D．Teachers are mostly from China.It was a cold winter day. A woman drove up to the Rainbow Bridge tollbooth(收费站). “I’m paying for myself, and for the six cars behind me,” she said with a smile, handing over seven tickets. One after another, the next six drivers arriving at the tollbooth were informed, “Some lady up ahead already paid your fare.”It turned out that the woman, Natalie Smith, had read something on a friend’s refrigerator: “Practice random kindness and senseless acts of beauty.” The phrase impressed her so much that she copied it down.Judy Foreman spotted the same phrase on a warehouse wall far away from home. When it stayed on her mind for days, she gave up and drove all the way back to copy it down. “I thought it was beautiful,” she said, explaining why she’d taken to writing it at the bottom of all her letters, “like a message from above.” Her husband, Frank, liked the phrase so much that he put it up on the classroom wall for his students, one of whom was the daughter of Alice Johnson, a local news reporter. Alice put it in the newspaper, admitting that though she liked it, she didn’t know where it came from or what it really meant.Two days later, Alice got a call from Anne Herbert, a woman living in Marin. It was in a restaurant that Anne wrote the phrase down on a piece of paper, after turning it around in her mind for days.“Here’s the idea,” Anne says. “Anything you think there should be more of, do it randomly.” Her fantasies include painting the classrooms of shabby schools, leaving hot meals on kitchen tables in the poor part of town, and giving money secretly to a proud old lady. Anne says,?“Kindness can build on itself as much as violence can.”The acts of random kindness spread. If you were one of those drivers who found your fare paid, who knows what you might have been inspired to do for someone else later. Like all great events, kindness begins slowly, with every single act. Let it be yours!41. Why did Natalie Smith pay for the six cars behind her?A．She knew the car drivers well.B．She wanted to show kindness.C．She hoped to please others.D．She had seven tickets.42. Judy Foreman copied down the phrase because she _________.A．thought it was beautifully writtenB．wanted to know what it really meantC．decided to write it on a warehouse wallD．wanted her husband to put it up in the classroom43. Who came up with the phrase according to the passage?A．Judy Foreman B．Natalie SmithC．Alice Johnson D．Anne Herbert44. Which of the following statements is closest in the meaning to the underlined sentence above?A．Kindness and violence can change the world.B．Kindness and violence can affect one’s behavior.C．Kindness and violence can reproduce themselves.D．Kindness and violence can shape one’s character.45. What can we infer from the last paragraph?A．People should practice random kindness to those in need.B．People who receive kindness are likely to offer it to others.C．People should practice random kindness to strangers they meet.D．People who receive kindness are likely to pay it back to the giver.Dogs wag (摇摆) their tails in different directions depending on whether they are excited and wanting to move forward or threatened and thinking of moving back, a study has found.Researchers in Italy examined the tail wagging behaviour of 30 dogs, catching their responses to a range of stimuli (刺激物) with video cameras. To conduct the study they chose 15 male dogs and 15 female ones aged between one and six years. The dogs were all family pets whose owners had allowed them to take part in the experiment at Bari University. The dogs were placed in a large wooden box with an opening at the front to allow for them to view various stimuli. They were tested one at a time.The researchers led by Professor Giorgio Vallortigara of the University of Trieste found that when the dogs were shown their owners — a positive experience — their tails wagged energetically to the right side. When they were shown an unfamiliar human they wagged to the right, but with somewhat less enthusiasm. The appearance of a cat again caused a right-hand side wag, although with less intensity again. The appearance of a large unfamiliar dog, similar to a German shepherd, changed the direction of tail wagging to the left. Researchers supposed the dog was thinking of moving back. When the dogs were not shown any stimuli they tended to wag their tails to the left, suggesting they preferred company. While the changes in the tail wagging were not easily noticed withoutthe aid of video, it was thought that the findings could help people judge the mood of dogs. Computer and video systems, for example, could be used by professional dog trainers to determine the mood of dogs that they were required to approach.46. The video cameras were used to catch the dogs’ responses because ________.A．it was easier to catch the dogs’ response changes in the tail waggingB．the dogs were put in the wooden boxes and tested one at a timeC．they enabled the dogs’ owners to know about their dogs’ habitD．the dogs wagged their tails in different directions when they were in different moods 47. The underlined word “intensity” in the passage means ________.A．surprise B．worry C．hate D．excitement48. When there are no stimuli, a dog will ________.A．wag to the right B．wag to the leftC．not wag at all D．wag to the left and then to the right49. The underlined word “they” refers to ________.A．the trainers B．the dogs C．the systems D．the researchers50. The purpose of doing the experiment is ________.A．to help people judge the mood of dogs B．to train dogs for their ownersC．to help dogs find company D．to help people choose their pet dogs 四、阅读表达阅读短文，并按照题目要求用英语回答问题。
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2017-2018学年度第一学期高二年级期中测试 数学（理科）一、选择题：（每小题4分，共32分）1．在正方体1111ABCD A B C D -中，异面直线1BC 与11B D 所成角为（ ）．A ．30︒B ．45︒C ．60︒D ．90︒【答案】C【解析】在正方体1111ABCD A B C D -中，11BC AD ∥， 连接1AB ，11B D ， 则1111AD AB B D ==， ∴11AD B △为等边三角形，故1160AD B ∠=︒，即1AD 与11B D 所成角为60︒， 即1BC 与1B D 所成角为60︒． 故选C ．2．下列说法正确的是（ ）．（1）任意三点确定一个平面；（2）圆上的三点确定一个平面；（3）任意四点确定一个平面；（4）两条平行线确定一个平面A ．（1）（2）B ．（2）（3）C ．（2）（4）D ．（3）（4） 【答案】C【解析】（1）．错误，三点不共线才能确定一个平面．（2）．正确，圆上三点不共线，可以确定一个平面． （3）．错误，四个点也不能在同一条直线上，才能确定一个平面． （4）．正确． 故选C ．3．在ABC △中(4,0)A -,(4,0)B ，ABC △的周长是18，则定点C 的轨迹方程是（ ）．A ．221259x y +=B ．221(0)259y x y +=≠C ．221(0)169x y y +=≠D ．221(0)259x y y +=≠【答案】D【解析】∵(4,0)A -，(4,0)B ， ∴||8AB =，又∵ABC △的周长为18， ∴||||10BC AC +=，∴顶点C 的轨迹是一个以A 、B 为焦点的椭圆． 则5a =，4c =，2229b a c =-=， ∴顶点C 的轨迹方程为221(0)259x y y +=≠． 故选D ．4．已知m ，n 是两条不同的直线，α，β，γ是三个不同的平面，则下列命题正确的是（ ）．A ．若m α⊂，n β⊂，m n ∥，则αβ∥B ．若m α⊂，n α⊂，m β∥，n β∥，则αβ∥C ．若αγ⊥，βγ⊥，则αβ∥D ．若m α⊥，m β⊥，则αβ∥ 【答案】D【解析】A ．一组线线平行，不能推出面面平行，故A 错；B ．若m n ∥，则不能推出αβ∥，故B 错；C ．α与β可能平行，可能相交，故C 错；D ．垂直于同一直线的两平面相互平行，正确．5．如图所示，直线:220l x y -+=过椭圆的左焦点1F 和一个顶点B ，该椭圆的离心率为（ ）．A ．15B ．25CD【答案】D【解析】直线l 的斜率为12，则12b c=，12=，解得c a =6．某几何体的三视图如图所示（单位：cm ），则该几何体的体积是（ ）．侧视图俯视图A ．38cmB ．312cmC ．332cm 3D ．340cm 3【答案】C【解析】见空间几何体下半部分1V 为边长为2的正方体，其上半部分2V 是一个底面为边长为2的正方形，高为2的四棱锥，故其体积为两部分体积之和1212222223V V V =+=⨯⨯+⨯⨯⨯，332cm 3=． 故选C ． 7．如图，在四面体ABCD 中，截面PQMN 是正方形，则在下列命题中，正确的个数为（ ）．DA BCPQM N（1）AC BD ⊥ （2）AC ∥截面PQMN（3）AC BD = （4）异面直线PM 与BD 所成的角为45︒A ．1B ．2C ．3D ．4【答案】C【解析】∵MN PQ ∥， ∴PQ ∥面ACD ，又∵平面ACD 平面ABC AC =， ∴PQ AC ∥，∴AC ∥截面PQMN ．②正确； 同理可得MQ BD ∥， 故AC BD ⊥．①正确，又MQ BD ∥，45PMQ ∠=︒，∴异面直线PM 与BD 所成的角为45︒，故④正确．根据已知条件无法得到AC 、BD 长度之间的关系，故③错误． 故选C ．8．如图，在正三棱柱111ABC A B C -中，1AB =．若二面角1C AB C --的大小为60︒，则点C 到平面1ABC 的距离为（ ）．ABCC 1B 1A 1AB ．34C ．1D ．32【答案】B【解析】点C 到平面1C AB 的距离为h ，∵ABC S =△1cos 60ABC ABC S S ==︒△△ ∵1C ABC C ABC V V --=，即111133ABC ABC S C C S h ⋅⋅=⋅⋅△△， ∴34h =．故选B ．二、填空题：（每小题4分，共16分）9．已知一个长方体的同一个顶点出发的三条棱长分别为1球的表面积为__________． 【答案】9π【解析】长方体外接球的直径3d ==， ∴半径322d r ==， ∴长方体外接球的表面积为2234π4π9π2S r ⎛⎫==⋅= ⎪⎝⎭．10．方程22121x y m m -=-表示焦点在y 轴上的椭圆，则m 的取值范围是__________．【答案】10,3⎛⎫⎪⎝⎭【解析】方程22121x y m m -=-表示焦点在y 轴上的椭圆， ∴20(1)0(1)2m m m m >⎧⎪-->⎨⎪-->⎩， 解得10,3m ⎛⎫∈ ⎪⎝⎭．11．把边长为a 的正方形ABCD 沿对角线BD 折成直二面角，对于下列结论正确的有__________． （1）AC BD ⊥；（2）ADC △是正三角形；（3）三棱锥C ABD -3； （4）AB 与平面BCD 成角60︒．【答案】（1）（2）（3）【解析】∵BD OC ⊥，BD OA ⊥， ∴BD ⊥面AOC ，∴BD AC ⊥．①正确． 1cos cos45cos452ADC ∠=︒⋅︒=， 60ADC ∠=︒，AD DC =，ADC △为正三角形．②正确．231132C BDA V a -=⋅⋅=．③正确．AB 与平面BCD 所成角45ABD ∠=︒．④错误．DBCO12．设1F ，2F 分别是椭圆22:1(01)y E x b b2+=<<的左、右焦点，过点1F 的直线交椭圆E 于A ，B 两点，若11||3||AF BF =，2AF x ⊥轴，则椭圆E 的方程为__________．【答案】22312x y +=【解析】设点A 在x 轴的上方，1(,0)F c -，2(,0)F c ，0(,)A c y ，由11||3||AF F B =，可得113AF F B =，易得05,33y B c ⎛⎫-- ⎪⎝⎭，又点A 、B 在椭圆E 上，故22022202125199y c b y c b ⎧+=⎪⎪⎨⎪+=⎪⎩， 化简得213c =， ∴22223b ac =-=，故椭圆E 的方程为22312y x +=．三、解答题：（本题共4小题，共52分）13．求经过两点11,33⎛⎫ ⎪⎝⎭，10,2⎛⎫- ⎪⎝⎭的椭圆的标准方程，并求出它的长轴和短轴的长、离心率、焦点和顶点的坐标．【答案】标准方程：2211145x y +=． 长轴长：1．．．焦点：⎛⎫ ⎪ ⎪⎝⎭，⎫⎪⎪⎝⎭．顶点坐标：1,02⎛⎫- ⎪⎝⎭，1,02⎛⎫ ⎪⎝⎭，⎛⎝⎭，0,⎛ ⎝⎭． 【解析】设所求椭圆方程为221Ax By +=，(0,0)A B >>，依题意，得2221115334112A B A B B ⎧⎛⎫⎛⎫+=⎪ ⎪ ⎪=⎧⎪⎝⎭⎝⎭⇒⎨⎨=⎩⎪⎛⎫-= ⎪⎪⎝⎭⎩， 故所求椭圆的标准方程为2211145x y +=． 长轴长21a =，短轴长2b =，离心率：c e a ==焦点为⎛⎫ ⎪ ⎪⎝⎭，⎫⎪⎪⎝⎭， 顶点坐标1,02⎛⎫- ⎪⎝⎭，1,02⎛⎫ ⎪⎝⎭，⎛⎝⎭，0,⎛ ⎝⎭．14．如图，在棱长为2的正方体ABCD A B C D ''''-中，E ，F 分别是A D ''和CC '的中点．（1）求异面直线EF 与AB 所成角的余弦值．（2）在棱BB '上是否存在一点P ，使得二面角P AC B --的大小为30︒？若存在，求出BP 的长；若不存在，请说明理由． 【答案】（1（2 【解析】（1）取B C ''中点G ，连结EG ，POG F E CBAD D'C'B'A'又∵E 为A D ''中点， ∴EG A B AB ''∥∥，连结GF ，则FEG ∠即为异面直线EF 与AB 所成角， ∵F 为CC '中点，正方体边长为2， ∵2EG A B ''==，EF， ∴cos EG FEG EF ∠==，故异面直线EF 与AB （2）存在，在棱BB '上取一点P ，由题意可知，BP ⊥面ABC ，连结AC ，BD 交于点O ，易知BO AC ⊥，BO = 连结PO ，则POB ∠为二面角P AC B --的平面角， 当30POB ∠=︒时，即tan PB POB BO ∠==解得BP =∴当BP =P AC B --的大小为30︒．15．如图，在四棱锥P ABCD -中，平面PAD ⊥平面ABCD ，PA PD ⊥，PA PD =，AB AD ⊥，1AB =，2AD =，AC CD ==DBP（1）求证：PD ⊥平面PAB ．（2）求直线PB 与平面PCD 所成角的正弦值．（3）在棱PA 上是否存在点M ，使得BM ∥平面PCD ？若存在，求AMAP的值；若不存在，说明理由．【答案】（1）见解析．（2）（3）存在，14AM AP =． 【解析】（1）∵面PAD ⊥面ABCD ，AB ⊂面ABCD ，且AB AD ⊥， ∴AB ⊥面PAD ， ∴AB PD ⊥，又∵PD PA ⊥，PA PB A = ， ∴PD ⊥面PAB ．（2）如图所示建立空间直角坐标系，zx设直线PB 与平面PCD 所成角为θ，∴(1,0,1)P ，(0,1,0)B ，(1,2,0)C ，(2,0,0)D ，则有(1,1,1)PB =-- ，(0,2,1)PC =- ，(1,0,1)PD =-，设平面PCD 的法向量为(,,)n x y z =．由00n PC n PD ⎧⋅=⎪⎨⋅=⎪⎩ ，得20(2,1,2)0y z n x z -=⎧⇒=⎨-=⎩ ，∴sin ||||PB n PB n θ⋅===⋅ ．又∵直线PB 与平面PCD 所成角为锐角，． （3）假设存在这样的M 点， 设点M 的坐标为(,0,)a a ． 则(,1,)BM a a =-， 要使直线BM ∥面PCD ，即需要求BM n ⊥． ∴2120a a -+=， 解得14a =， 此时14AM AP =．16．已知椭圆2222:1(0)x y E a b a b +=>>的半焦距为c ，原点O 到经过两点(,0)c ，(0,)b 的直线的距离为12c ．（1）求椭圆E 的离心率．（2）如图，AB 是圆225:(2)(1)2M x y ++-=的一条直径，若椭圆E 经过A ，B 两点，求椭圆E 的方程．【答案】（1（2）221123x y +=． 【解析】（1）过点(,0)c ，(0,)b 的直线方程为0bx cy bc +-=，则原点O 到该直线的距离bcd a==，由12d c =得2a b ==解得离心率c a = （2）由（1）知椭圆E 的方程为22244x y b +=， 由题意，圆心(2,1)M -是线段AB 的中点，且||AB AB 与x 轴不垂直， 设其AB 方程为(2)1y k x =++，代入椭圆方程得2222(14)8(21)4(21)40k x k k x k b +++++-=， 设11(,)A x y ，22(,)B x y ，则1228(21)14k k x x k ++=-+，221224(21)414k b x x k +-⋅=+，由124x x +=-得28(21)414k k k -+=-+，解得12k =，从而21282x x b =-，于是12||||AB x x =-=解得23b =，过椭圆E 的方程为221123x y +=．。