江苏省徐州市2019-2020学年高二下学期期末抽测英语试题 含答案
江苏省徐州市2019~2020学年度第二学期期末抽测高二年级英语试题注意事项：1.答卷前，考生务必将自己的姓名、考生号等填写在答题卡和试卷指定位置上。
2. 回答选择题时，选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑。
如需改动，用橡皮擦干净后，再选涂其他答案标号。
回答非选择题时，将答案写在答题卡上。
写在本试卷上无效。
3. 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）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.How does the man avoid getting sick?A.He buys many ordinary masks.B.He goes everywhere on foot.C.He takes public transportation.2.How did the man get the tickets?A.In person.B.By post.C.By email.3.What does the woman think of the new manager?A. He is nice.B.He talks little.C.He has a lot to learn.4.What is the woman about to do?A.Move house.B.Rent a house.C.Build a house.5.Where does the woman come from?A.Holland.B.Germany.C.The UK.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。
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 the man?A.A reporter.B.A director.C.A policeman.7.What are the speakers probably looking at?A.An old cat.B.A horrible dog.C.A small tiger.听第7段材料，回答第8、9题。
8.Which ship is the farthest from the speakers?A.The oil ship.B.The container ship.C.The passenger ship.9.Where does the conversation take place?A.On a hill.B.In a port.C.On a beach.听第8段材料，回答第10至 12题。
10.What are the speakers mainly talking about?A.What to do on the train.B.How to go back home.C.When to get on the bus.11.Whose birthday is it today?A.The man's.B.The woman's.C.The man's daughter's.12.When is the second bus leaving?A.In 20 minutes.B.In 30 minutes.C.In 60 minutes.听第9段材料，回答第13至16题。
13.What color of jacket does the old woman wear?A.Green.B.Blue.C.Red.14.Why did the man leave home this morning?A.To buy a gift.B.To go to work.C.To get some food.15.What did the old woman purchase?A.A hat.B.A T-shirt.C.A pair of jeans.16.What is the relationship between the speakers?A.Family members.B.Co-workers.C.Strangers.听第10段材料，回答第17至20题。
17.When does the summer holiday start?A.Tomorrow.B.Next week.C.Next month.18.How long will the library be open during the summer holiday?A.For 4 hours.B.For 8 hours.C.For 10 hours.19.How should the students return books during the summer holiday?A.Put them carefully into the drop box anytime.B.Give back the easily broken ones to the librarian.C.Leave them into different drop boxes according to the type.20.What special activity will be held over the summer holiday?A.A reading club.B.A lecture about artworks.C.A visit from a former student.第二部分阅读理解（共两节，满分50分）第一节（共15小题；每小题2.5分，满分37.5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。
AWomen,with equal opportunities now in place,are able to choose.whatever professional path they desire.If a 9-to-5 office job isn't your style,consider some of the fun and profitable professions available that are a little off the beaten path..Wedding plannerWhile some women dream of their wedding day,others grow up to be imaginative wedding planners.Business opportunities are readily available,as more than 2 million weddings take place in the United States each year with an average spend of more than$1,000 per wedding for a wedding planner,according to The Wedding Report.ChocolatierIf you want to have your chocolate and eat it too,consider becoming a chocolatier.Create new flavor combinations,market your product and sell it from your own store,or work for a large chocolate business and watch your creations sold to the masses.Personal shopperIf you love to shop,particularly when you are spending someone else' s money,then you should consider becoming a personal shopper.Personal shoppers assess their clients' needs, lifestyles,likes and dislikes and then put that knowledge to use by purchasing their clothing and accessories.Although the job does have a few drawbacks,like fussy clients, reports that,"mostly,it's a pretty good time."Disney characterImagine being paid to be a princess.For many women working at the Disney resorts,that is exactly what they do.The Walt Disney Company hires look-alikes to play the roles of Disney characters,like the Little Mermaid or Cinderella,at its Disneyland and Disney World resorts.21.One can satisfy her desire for shopping by becoming a_________even if she cannot afford.A.wedding plannerB.chocolatierC.personal shopper:.D.Disney character22.Creativity is especially needed in the professions ofA.wedding planner&chocolatierB.chocolatier&personal shopper..C.personal shopper&Disney characterD.Disney character&wedding planner23.Who may be interested in the jobs in the passage?A.Women wanting flexible working hours..B.Men fed up with 9 to 5 office work.C.Housewives hoping for social equality.D.Managers advertising for employees.BYou might associate bees with their cute,fuzzy shape and seemingly aimless interest in flowers.But beneath the yellow-and-black(mostly)stripes lies an incredible mind.To efficiently find and collect food to bring back to the hive,bees have to quickly learn to recognize(and then memorize)the most effective foraging routes.A new study collected evidence from 23 studies of bees and concluded that levels of pesticides(杀虫剂）currently considered safe to use may still have a big effect on bee colony(蜂群）survival.They found that pesticides had significant negative effects on learning and memory.That was true both when bees were suddenly exposed to a lot of pesticides,and when they got a little bit over a long time.It was also true regardless of whether the bees were exposed to neonicotinoids(新烟碱类杀虫剂），or other pesticides.Current pesticide regulations are geared(便适应）toward making sure they aren't used at levels that kill bees.But these currently legal amounts apparently make the bees dumber,which could have effects for species survival.The other question these findings implicitly(含蓄地）raise is how these pesticides affect less-studied types of bees.Bees don't all live collectively.Many wild bees do not live in colonies, and if their learning or memory are affected,there are no other bees to help out.Ohio State University entomologist Reed Johnson told Popular Science in an email interview,the question is:"Can pesticides ever be used safely around bees?"This study,which in one sense has the strength of 23 studies' worth of evidence,"suggests that the answer is NO," he wrote.The follow-up question goes deep into one of our most fundamental needs-food. Pesticides are an essential part of large-scale industrial agriculture,and some amount of honeybee exposure is inevitable.The question,then-which hasn't been answered by regulation to date,Johnson says-is how much harm to bees is acceptable.As ever,more research is needed.But this study is worth paying attention to,University of Ottawa bee conservationist Jeremy Kerr told Popular Science.Its conclusions are based on evidence from over 100 individual experiments included in the 23 studies,he says,lending their findings weight."The lesson that emerges is that honeybees begin to lose their ability to learn and to remember when they are exposed to neonicotinoids,"he writes.＂With restrictions on neonicotinoids increasing globally,many will be looking on alternative chemicals for crop protection."It's important to think about what those chemicals might be doing to the bees.24.Pesticides have a negative effect on bees in that..A.wild bees fail to live in coloniesB.pesticides destroy food of beesC.bees' learning and memory will be harmedD.even a low level of pesticides kills bees25.Bees 'survival may be threatened EXCEPT when.A.they are exposed to a lot of pesticidesB.they take in some pesticides for longC.they are in contact with neonicotinoidsD.they are living in the pure wilderness26.According to Johnson,it remains unclear nowA.how these pesticides affect wild bees' survivalB.whether pesticides can be used safely around bees.C.how much harm from pesticides bees can bearD.whether bee exposure to pesticides can be avoided27.In response to the restrictions on neonicotinoids,many people might.A.limit the use of all pesticidesB.do more experiments on beesC.reduce the amount of chemicals in farmingD.find some other chemicals to protect cropsCThe word"Kuitou"in Peking Opera is the technical term for various kinds of hats and headpieces worn by various characters in traditional Chinese opera.More than just meeting the requirements of acting,it also reveals an aspect of traditional Chinese culture.In traditional Han Chinese culture,people believed that since,one's whole body was a gift from one's parents,it was important to avoid anything that might injure it,a principle that showed filial piety(孝道）。
浙江省金华市2023-2024学年高二上学期1月期末英语试题含答案
金华十校2023—2024学年第一学期期末调研考试高二英语试题卷（答案在最后）本试卷分为第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)，共150分，考试时间120分钟。
请考生按规定用笔将所有试题的答案涂写在答题纸上。
第Ⅰ卷(选择题共95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 the woman to do?A.Take care of his pet.e over at3:00p.m.C.Attend a meeting with him.2.What is the man doing?A.Recommending a book.B.Expressing his feelings.C.Explaining a test question.3.Where did the man’s wife grow up?A.In Australia.B.In New Zealand.C.In India.4.What does the man mean?A.He is very excited about the news.B.He doesn’t pay attention to sports.C.He wishes a different team had won.5.What is probably the relationship between the speakers?A.Mother and son.B.Husband and wife.C.Customer and Saleswoman.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。
江苏省各地2019-2020年高二上学期最新英语试题精选汇编：七选五(含答案)(K12教育文档)
江苏省各地2019-2020年高二上学期最新英语试题精选汇编：七选五(含答案)(word版可编辑修改)编辑整理：尊敬的读者朋友们：这里是精品文档编辑中心，本文档内容是由我和我的同事精心编辑整理后发布的，发布之前我们对文中内容进行仔细校对，但是难免会有疏漏的地方，但是任然希望（江苏省各地2019-2020年高二上学期最新英语试题精选汇编：七选五(含答案)(word版可编辑修改)）的内容能够给您的工作和学习带来便利。
同时也真诚的希望收到您的建议和反馈，这将是我们进步的源泉，前进的动力。
本文可编辑可修改，如果觉得对您有帮助请收藏以便随时查阅，最后祝您生活愉快业绩进步，以下为江苏省各地2019-2020年高二上学期最新英语试题精选汇编：七选五(含答案)(word版可编辑修改)的全部内容。
江苏省各地2019-2020学年高二上学期最新英语试题精选汇编：七选五1、【全国百强校】江苏省启东中学2019-2020学年高二上学期第一次质量检测英语试题根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。
选项中有两项为多余选项.The iPod GenerationToday it is common to see people who walk about with colored wires hanging from their ears wherever they go。
They move about in their personal bubbles， sometimes unaware of what’s happening around them. 36 Outside life is shut out。
So are you one of “them”？For me， walking around in my own personal bubble is perfect. 37 What’s even better， wearing earphones seems to give a signal to people which says，“I’m not available for chatting at the moment!”Suppose you’re at work and about to ma ke an incredible breakthrough, but a colleague suddenly turns up。
2019-2020学年度第二学期期末调研考试高一英语试题【含答案】
2019-2020学年度第⼆学期期末调研考试⾼⼀英语试题【含答案】2019-2020 学年度第⼆学期期末调研考试⾼⼀英语试题选择题部分第⼀部分听⼒（共两节，满分30分）做题时，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 will Peter do at 10:00 tomorrow?A. Go camping.B. Stay at home.C. Have a meeting.2.How much did the woman pay for the skirt?A. $10.B. $20.C.$40.3.What's the weather like now?A. Cloudy.B. Sunny.C. Rainy.4. When does the supermarket open on the weekend?A.At 6:00 am.B. At8:00 am.C.At 9:00 am.5.What will the woman do for her mother's birthday?A. Buy a gift.B.Throw a party.C.Make a cake.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。
每段对话或独⽩读两遍。
听第6段材料，回答第6、7题。
6. Where does the woman want to go?A.The nearest bank.B.The nearest hospital.C.The nearest post office.7. How will the woman go there?A. By bus.B. By car.C. On foot.听第7段材料，回答第8、9题。
福建省福州市晋安区五校联考2023-2024学年高二下学期7月期末考试英语试题(含答案)
湛江市2023-2024学年高二下学期期末调研测试英语试卷（满分：150 分；考试时间：120 分钟）班级姓名座号第一部分听力（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。
每段对话仅读一遍。
例：How much is the shirtA. 19.15.B. 9.18.C. 9.15. 答案是C。
1. When did Jim wish the speakers to be at his houseA. Before six o’clock.B. After five o’clock.C. Any time before five thirty.2. Why does the woman call the manA. To know more information about the house.B. To make an appointment with the man.C. To ask the man for more advice.3. What does the woman meanA. She do esn’t understand the question.B. She will not go to watch the match.C. She will not lend him the money.4. What will the man doA. Wear the shirt.B. Find a chance to buy a shirt.C. Change the shirt for a new one.5. Who will leave for Hong KongA. The woman.B. Bob.C. Tom.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。
每段对话或独白读两遍。
听下面一段对话，回答6至7题。
江苏省2019-2020学年高二下学期期末调研测试英语试题分类汇编-七选五含答案
江苏省2019-2020学年高二下学期期末调研测试英语试题分类汇编-七选五江苏省南通市2019-2020学年高二下学期期末调研测试英语试题第二节(共5小题；每小题2分，满分10分）根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。
选项中有两项为多余选项。
If your family or group of friends loves to bike,then a bike trip makes a perfect vacation. ___16___Because you move more slowly on a bike,you have a chance to really sink into your environment,observing wildlife and views that you might miss otherwise.As you plan your trip,the biggest decision to make is how far you'd like to travel each day.If you have unskilled bikers or kids in your group,you'll probably all be happiest if you keep your mileage goals fairly modest.___17___ ___18___ You can book campsites ahead of time at campgrounds along the way, and ride into camp as late as you like. Keep in mind that some camping equipment is heavy. Invest in a light-weight tent,and light-weight inflatable pads(充气垫）for under your sleeping bag.Dehydrated food also helps keep the weight down.If you're going to be traveling on trails at all,you'll want to ride a mountain bike during your trip.On the other hand,if your whole route is wholly along roads,you can ride a lighter-weight street bike.Or,you can putheavier-weight tires on a street bike.___19___Biking is a great way to see the country,and if you have a lot of time,you can cover quite a bit of distance.Over the course of a multi- week trip,you'll get stronger and you'll be able to go further in one day.___20___ If your trip is a long one,you might want to rest a day or two early in your travels to give your body some rest.A. An easy way to travel is to camp along the way.B. Check in with your local bike shop for suggestions on tire weight.C. Taking a bike trip is not only convenient but also beneficial to our health.D. Be sure to bring the contact information and directions for each campground.E. But a group of more experienced bikers can make more serious mileage goals.F. Seeing the world from the seat of a bike is a wonderful way to experience new places.G. Bear in mind, though, that early in the trip you'll start every day feeling tired from the day before.【答案】16. F 17. E 18. A 19. B 20. G江苏省泰州市2019-2020学年高二下学期期末考试英语试题根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。
江苏省徐州市2019-2020学年高二下学期期中考试英语试卷(附答案及解析)
江苏省徐州市2019-2020学年高二下学期期中考试英语试卷一、完型填空 本大题共2道小题。
1.Face shape lets AI spot rare disordersPeople with genetic syndromes (综合征) sometimes have revealing facial features, but using them to make a quick and cheap diagnosis can be ___21___given there are hundreds of possible conditions they may have. A new neural (神经系统) network that analyses photographs of faces can help doctors ___22___the possibilities.Yaron Gurovich at biotechnology firm FDNA in Boston and his team built a neural network to look at the overall impression of faces and ___23___ a list of the 10 genetic syndromes a person is most likely to have.They ___24___ the neural network, called DeepGestalt, on 17,000 images correctly labeled to match more than 200 genetic syndromes.The team then asked AI to ___25___potential genetic disorders from a further 502 photos of people with such conditions. It included the correct answer among its list of 10 responses 91 per cent of the time.Gurovich and his team also___26___the neural network's ability to distinguish between the different genetic mutations (父异) that can lead to the same syndrome.They used photographs of people with Noonan syndrome, which can result from mutations in any one of five genes.DeepGestalt correctly identified the genetic source of the physical appearance 64 per cent of the time. It’s clearly not ___27___, but it’s still much better than humans are at trying to do this.As the system makes its assessments, the facial regions that are most helpful in the determination are___28___and made available for doctors to view. This helps them to understand the relationships between genetic make-up and physical appearance.The fact that the diagnosis is based on a simple photograph raises questions about___29___. If faces can答案第6页，总47页reveal details about genetics, then employers and insurance providers could, in principle,_____30_____ use such techniques to _____31_____ against people who have a high probability of having certaindisorders._____32_____. Gurovich says the tool will only be _____33_____for use by clinicians.This technique could bring significant_____34_____ for those who have genetic syndromes. The real value here is that for some of these ultra-rare diseases, the process of diagnosis can be many, many years. This kind of technology can help narrow down the search space and then be confirmed through checking genetic markers. For some diseases, it will cut down the time to diagnosis dramatically. For others, it could perhaps add means of finding other people with the disease and, _____35_____, help find new treatments or cures.21. A. convincing B. practical C. reliable D. tricky22. A. narrow down B. result in C. bring about D. arise from23. A. wait B. return C. mail D. feed24. A. focused B. touched C. based D. trained25. A. adjust B. identify C. change D. cure26. A. recognized B. showed C. tested D. acquired27. A. perfect B. acceptable C. specific D. workable28. A. covered B. highlighted C. excluded D. monitored29. A. privacy B. accuracy C. reality D. objectivity30. A. legally B. regularly C. secretly D. efficiently31. A. vote B. fight C. argue D. discriminate32. A. Furthermore B. Similarly C. Otherwise D. However33. A. available B. impossible C. ready D. rare34. A. challenges B. damages C. benefits D. concerns35. A. by contrast B. on the contrary C. in addition D. in turn答案及解析：1.21. D 22. A 23. B 24. C 25. B 26. C 27. A 28. B 29. A 30. C 31. D 32. D 33. A 34. C 35. D这是一篇说明文。
2019-2020学年江苏省徐州市邳州市八年级(上)期末英语试卷
2019-2020学年江苏省徐州市邳州市八年级（上）期末英语试卷选择填空1. The air in this room is not very fresh． Do you mind if I_____？（）A.write down the wordB.cut out the pictureC.tidy up the roomD.open the window2. The sentence structure of " The food tastes better than I cooked last week"is________．（）A.S+V+PB.S+VC.S+V+DO+ OCD.S+V+O3. The snowstorm brought disasters to ________ people．（）A.thousands ofB.thousandsC.thousand ofD.thousand4. Here are clear instructions． Read ________first．（）A.itB.themC.himD.you5. ﹣ I'm really cold． It's a terrible day today!﹣ ________． I love snowy days． Winter is great!（）A.I'm afraid soB.I can't agreeC.With pleasureD.I think so6. ﹣ ________do you make fruit salad？﹣ First， we need to buy some fruit． Then，…（）A.WhatB.HowC.WhichD.Who7. I find it hard to even walk upstairs． Can we rest now？ I'm ________（）A.excitedB.tiredC.activeD.bored8. ﹣ ________it is!﹣Yes． Let's go out for a walk．（）A.What fine weatherB.How a fine weatherC.What a fine weatherD.How fine weather9. The show was so funny that it made everyone ______ again and again．（）ughughedughingD.to laugh10. This cake is very big． ________share it．（）A.May be we canB.We may be canC.Maybe we canD.Maybe may we11. ﹣Would you like to go swimming with me， Tom？﹣Sorry， but our teachers always tell us____in the river．（）A.don't swimB.not swimmingC.not to swimD.to not swim12. The giant panda weighs just _______when it is ______．（）A.10﹣kilogram； 10﹣month﹣oldB.10﹣kilograms； 10﹣month﹣oldC.10﹣kilogram； 10 months oldD.10 kilograms； 10 months old13. Breakfast is ________meal of the day． It gives us energy after a long night without food．（）A.importantB.more importantC.the most importantD.very important14. Do as she says， ________you will be in trouble．（）A.as a resultB.otherwiseC.insteadD.in fact15. ﹣﹣﹣ I didn't see you at the party yesterday．﹣﹣﹣ I ________for my friends at the gate at that time．（）A.was waitingB.waitedC.am waitingD.wait三、完形填空16. You have probably heard the expression, "It's raining cats and dogs outside．"That means（1）_______it's raining very hard I not that（2）_______cats and dogs are falling from the （3）_______．However, one day in June, 1882, it really did rain（4）_______over Dubuque, Iowa．The frogs（5）_______falling along with hailstones（冰雹）during a（6）_______storm．Hail is formed when drops of rainwater are（7）_______by heavy winds and are carried high up into the air．There the raindrops become frozen．Many drops may freeze（8）_______to form balls of ice; these ice balls, or hailstones, then（9）_______to earth．During the storm in Dubuque, the strong winds lifted small frogs from nearby ponds（池塘）（10）_______the air along with raindrops．When some of these frogs became covered with ice, both hailstones and"frog﹣stones"fell onto the ground．（1）A.thatB.howC.whyD.if（2）A.carelessB.blindC.deadD.real（3）A.hillB.towerC.skyD.building（4）A.catsB.frogsC.dogsD.birds（5）A.stoppedB.enjoyedC.beganD.forgot（6）A.popularB.terribleC.weeklymon（7）A.dividedB.addedC.changedD.caught（8）A.togetherB.aloneC.soD.almost（9）A.holdB.loseC.keepD.fall（10）A.fromB.intoC.afterD.by四. 阅读理解17. Dear Anita,I work for a big international （国际的）company． I love my job because I can travel toa lot of different countries． My problem is that it usually takes me about three days to get used to （适应） the local time． During those days I have some meetings, but I'm alwaysvery tired and its difficult to think clearly． And, when I just get used to the local time, I have to fly back home． Can you give me any advice?StewartDear Anita,Help! I live in Hong Kong and I am going to travel to Canada in three days to have a two﹣week summer camp． The problem is that I have to fly． I don't feel safe on a plane． Ican*t sleep, and sometimes I even cant breathe （呼吸）． What can I do?ThomasDear Anita,I'm not afraid of flying, but I don't like to fly． I find it very difficult to sleep on a plane． The seats are too small and other people are sometimes noisy and wake meup． Also, flying is very boring． Any advice?（1）Stewart loves his job because________A. he has some meeting and he can think easily．B. he always spends three days getting used to the local time．C. he usually flies back when he just gets used to the local time，．D. he can travel to a lot of different countries．（2）Thomas will stay in Canada________．A. for three daysB. for two weeksC. for seventeen daysD. for eleven days．（3）What does Debbie think of flying？________A. It's safe．B. It's interesting．C. It's boring．D. It's dangerous．18. People all need friends because nobody wants to be lonely and a friend can help you in good and bad times． You've made friends since childhood, but you still don't know who your true friends are． Here are some signs to tell you if your friend is a true friend:Always be honestHonesty is important to keep a relationship alive． A true friend always tells you the truth． It may be hard sometimes but lying can destroy a friendship． It is important that your friend speaks honestly and never makes up stories．There are always periods in your life when you have problems or difficulties． A truefriend will always have time to listen to your problems and give advice． He or she may not be able to offer a solution to your problems but the fact that your friend made time to listenis a sign he/she cares about you． Your friend is not a true friend if he/she can never makes time for you when you are in trouble． You also need to be reasonable and accept that your friend also has other things to do so he/she can't always listen immediately to your problems．Always be respectful （尊敬的）A true friend will always respect your opinion no matter whether he/she agrees or not． Your true friend may disagree but never insists that he/she is correct．Always be understandingIt is possible that some problems will arise between you and your friend． A true friend will always be forgiving （体谅的）and understanding, even if it isn't his/her fault． We are all different people and we all make mistakes． A true friend is always forgiving and understanding because he/she doesn't want to take the risk of losing his/her best friend．（1）What's the best title for the third paragraph （段）？________A. Always there for you．B. Keep your secrets．C. Always happy for you．D. Remember your important days．．（2）According to the passage， a true friend will always________．A. follow your adviceB. offer a solution for your problemsC. listen immediately to your problemsD. respect your opinion even if he/she disagrees with it．（3）Which of the following is NOT mentioned in the passage？________A. Never tell lies to friends．B. Making time for friends．C. Sharing fun with friendsD. Paying attention to a friend's opinions．．（4）A true friend will always forgive and understand you because________．A. he/she doesn't want to lose youB. he/she wants you to feel confidentC. he/she wants to help youD. he/she doesn't care about your mistakes．19. Riding a bicycle has become very popular these days．My school is far from my house, so I went there by bus for years． I sometimes got there late． This March I asked my father to get me a bicycle so that I might get to school on time． And he bought me one some days later．Then the problem was how to ride the bicycle． One of my friends lives next door． Hehelped me learn how to ride． He took me to a school playground and ________how to ride to me． When it was my turn to ride, he ran with me． He did that to make sure he would be there when I was falling off I learned things very quickly and could ride a bicycle without anyone's help after a few days．What fun it is to ride a bicycle! I now go to school on my bicycle．I think a bicycle is the cheapest and quickest means of transport （交通工具）for a student． I make use of my bicycle if a football game is waiting for me in the park． I visit the homes of my friends by bicycle． And they live too far away． I can also be very helpful to my mother and get vegetables and fruit for the house．What fun it is to fly like a bird on my bicycle!（1）The writer wanted a bicycle to________ first．A. visit the homes of his friendsB. help his mother to get vegetables and fruitC. watch a football game in the parkD. get to school on time．（2）The writer could ride a bicycle________ after a few days．A. with his friend's helpB. with his father's helpC. in a few weeks' timeD. without anyone's help．（3）What does the underlined word " ________" mean in Chinese？________A. 证明B. 观察C. 示范D. 建议．（4）What does the writer think of riding a bicycle？________①It's cheap．②It's hard．③It's quick．④It's fun．A. ①③④B. ①②④C. ①③④D. ②③④．20. Welcome to Burton Safari Park． Burton is one of Europe's oldest wildlifeparks． Here you can see wild animals from all over the world ﹣ and they're not in cages． Before we start, we have some information for the animal's safety and for your own．First, please stay in your car at all times． If there is an emergency （紧急情况）or your car breaks down, please use your horn （喇叭） and lights and a person will come and help you． If you would like to stop, please do so on the left side of the road, so the traffic will pass on the right． Please don't feed the animals． Our animals are fed on special diets and your food could make them ill or even kill them．We're starting our tour with some of Burton's most interesting animals, our four whiterhinos （犀牛）from South Africa． The white rhino doesn't get its name from its colour; the African word white means wild． The white rhino has a wide mouth and it helps the animal to eat grass． Sadly, there are very few white rhinos left because humans hunt them for their valuable horns （角）． They can be made into things like handles（柄，把手）for knives．（1）Who is the speaker？________A. A chairperson．B. A tourist．C. A climber．D. A guide．．（2）If you are in trouble， you can________．A. use your hornB. pass on the right．C. feed the animalsD. kill the animals．（3）Which sentence is TRUE about Burton？________A. Ifs a new wildlife park．B. Animals in Burton are kept in cages．C. Traffic there keeps to the left．D. Visitors can feed the animals there．．（4）What do we know about the white rhino？________A. It gets its name from its colour．B. It is a rare animal．C. People hunt it for its fur．D. It has a wide nose．基础知识根据学过的课文补全句子21. 不幸的是大熊猫在野外面临严重的问题．________， giant pandas face serious________in the wild．22. 它是世界上最重要的湿地之一．It's one of the world's________important________．23. 蜜蜂和蝴蝶在花丛中快乐地嬉戏．Bees and the butterflies play________flowers________24. 然后我听到了激动的人群的叫喊声．Then I heard shouts from________people．25. 尽快逃出去．________ to get out as soon as________．句型转换26. My aunt is 35 years old． My uncle is 35， too．（改为同义句）My aunt is________my uncle．27. They enjoy ________in this season．（对划线部分提问）________do they enjoy________ in this season？28. I know something special about wild animals．（改为否定句）I know________special about wild animals．六、词语运用选用方框内的单词或词组填空，其中有一个单词或词组是多余的．29.（1）Human cut down lots of trees．________wild animals became fewer and fewer．（2）It kept snowing for a week． Everything________ thick snow．（3）DIY________ "do﹣it﹣yourself"．（4）Winter in many places means snowball fights and________．（5）Eating too much sugar can________health problems．用括号中所给单词的正确形式填空，使短文内容完整、正确．30. I （1）________（have） dinner at a restaurant when Tony Steele came in． Tony worked in a （2）________（lawyer） office years ago， but now he （3）________（work） at a bank． He gets a good salary， but he keeps （4）________（borrow）money from his friends and （5）________（ever） pays it back． Tony saw me and came and sat at my table． He has never borrowed money from me． While he was eating， I asked him （6）________（lend） me twenty dollars． To （7）________（me）surprise， he （8）________（give） me the money at once． "Never I （9）________（borrow） any money from you，" Tony said， "so now you can pay for my dinner!" I was too （10）________（surprise）to say anything．任务型阅读31. My name is Daniel． I'm in grade 8 at Beijing Sunshine secondary school． It is a m（1）________school． I like Maths and Computer Studies． These subjects are d（2）________but very important．I a（3）________study Art， Chinese， English，Geography， Science and History． I study more subjects and have l（4）________freetime than my British friend John． My American friend Nancy joins fewer clubs and hasmore free time than I do． Nancy studies the f （5）________subjects．阅读短文，按要求回答问题.32. Last year I had an amusing experience． I was travelling in France． After I left a small village in the south of France， I drove on to the next town． On the way， a young man waved to me． I stopped and he asked me for a lift． I agreed． Just as he got into the car，I said good morning to him in French and he answered in the same language． Apart from （除了）a few words， I do not know any French at all． Neither of us spoke during the trip． I had nearly reached the town， when the young man suddenly said， very slowly，"Do you speak English？ As I soon learnt， he was English himself!根据短文内容，回答下列问题．（1）_______Where was the writer travelling？________（2）_______What happened on the way？________（3）_______How did the writer greet the young man？________（4）_______Why did neither of them speak during the trip？________（5）_______What nationality（国籍）did the writer think the young man was？________书面表达33. 假设你是李华，从小喜爱野生动物，在网上看到了Wildlife Protection Club招募志愿者（volunteer）的广告．请你用英语写一封信给俱乐部主席Mr．Brown，应征做志愿者，信的内容要点如下．Dear Mr．Brown，APPLICATION TO JOIN THE WPC CLUBI saw your advertisement on the Internet and I would like to apply to become a member of the Wildlife Protection Club．________．Yours sincerelyLi Hua．参考答案与试题解析2019-2020学年江苏省徐州市邳州市八年级（上）期末英语试卷选择填空1.【答案】D2.【答案】A3.【答案】A4.【答案】B5.【答案】B6.【答案】B7.【答案】B8.【答案】A9.【答案】A10.【答案】C11.【答案】C12.【答案】D13.【答案】C14.【答案】B15.【答案】A三、完形填空16.【答案】ADCBCBDADB四. 阅读理解17.【答案】DBC18.【答案】ADCA19.【答案】DDCA20.【答案】DACB基础知识根据学过的课文补全句子21.【答案】Unluckily,problems22.【答案】most,wetlands23.【答案】among,happily．24.【答案】excited25.【答案】Try,possible句型转换26.【答案】asoldas27.【答案】flying kites ,What,doing28.【答案】nothing六、词语运用选用方框内的单词或词组填空，其中有一个单词或词组是多余的．29.【答案】Asaresult,was covered with,stands for,skating,lead to用括号中所给单词的正确形式填空，使短文内容完整、正确．30.【答案】was having,lawyer's,is working,borrowing,never,to lend,my,gave,have borrowed,surprised 任务型阅读31.【答案】iddle,ifficult,lso,ess,ewest阅读短文，按要求回答问题.32.【答案】InFrance,Ayoungmanwantedtoaskedthewriterforalift,HesaidgoodmorningtohiminFrench,Bec ausetheydidn'tknowFrenchwell,ThewriterthoughthewasaFrench书面表达33.【答案】Dear Mr Brown，APPLICATION TO JOIN THE WPC CLUBI saw your advertisement on the net and I would like to apply to become a member of the Wildlife Protection Club．【开篇点明主题】I am a student of Grade 8 at Suzhou Sunshine Secondary School．I am hard﹣working and always ready to help others【高分句型一，注意固定词组的使用】．I love reading，taking pictures and surfing the net．I am the chairperson of the Wild Animals Club at our school．I'm very interested in wildlife．And I think every one of us should do something to help protect the wild animals．So I hope I can be a member of your club．【高分句型二，注意宾语从句的使用】【正文部分详细介绍自己及加入俱乐部的原因】You can call me on 0512﹣66688999 or e﹣mail me at lihua@sunshinetown．com．Yours sincerelyLiHua。
江苏省徐州市沛县2019-2020学年(下)八年级期末模拟测试英语试题(含答案)
2019-2020学年（下）八年级期末模拟测试英语试题（60分钟完成满分120分）一、单项选择。
（15分）从每小题所给的A、B、C、D四个选项中，选出最佳选项（）1. ---Is Doctor Green ____________ ORBIS doctor？---No，he is ____________UNICEF volunteer. But he sometimes works with ORBIS.A. an；aB. an；aC. an；anD. a；a（）2. ---How long can the book____________？---For two weeks. And you mustn＇t ____________it to others.A. borrow；keepB. keep；lendC. keep；borrowD. borrow；lend （）3. London is____________the biggest cities all over the world.A. ofB.inC.betweenD.among（）4. He had ____________a good idea____________ we all agree with him.A. so；thatB. such；thatC. too；toD. either；or（）5. They tried their best ____________the ship ____________ down but failed.A. prevent；from goingB. prevented；goingC. to prevent；to goingD. to prevent；from going（）6. Thank you for Tom ____________ with ____________ us.A. letting；staysB. letting；stayC. letting；stayingD. let；stay（）7.---Has she had ______________for the job？---Yes，she has taught English for more than 10 years.A. enough experienceB. enough experiencesC. many experiencesD. much experiences（）8. Eating in a Chinese restaurant ____________more time than in a fast-food restaurant.A. takesB.costsC.paysD.spends（）9. Don＇t make him____________ all the time. Let him____________ a rest.A. to work；to haveB. work；haveC. to work；haveD. work；to have（）10. It is very kind ___________you to help me with my lessons because it is very difficult ____________me to learn them well.A.of；forB.of；ofC. for；ofD. for；for（）11. Mr Wang ____________working in the countryside because he__________ the environment thereA. used to；is used toB. was used to；used toC. used to；used toD. is used to；is used to（）12. Mum asked us to stop ___________and we stopped ___________ to her at once.A. talking；to listenB.talking；listeningC. to talk；to listenD. to talk；listen（）13. It is three months _____________Kitty moved here.A.forB.sinceC.untilD.when（）14. The dining hall in our school is ___________to hold 1,000 people.A. enough bigB. enough wellC.small enoughD. big enough （）15.---Do you think it will rain tomorrow？---_____________. It hasn＇t rained for whole month！It＇s too dry.A. I＇m afraid it willB. I＇m sure it willC. I hope soD. I hope not二、完形填空。
江苏省徐州市2019-2020学年高二下学期期中考试英语试题 含参考答案
江苏徐州市2019-2020学年度第二学期期中考试高二英语试题本试卷由第一卷（选择题）和第二卷（非选择题）两个部分组成。
满分150分。
考试时间120分钟。
第一卷（共100分）注意事项：1. 答第一卷前，考生务必将自己的姓名、准考证号、考试科目用铅笔涂写在答题卡上。
2. 用铅笔把答题卡上对应题目的答案标号涂黑。
不能答在试题卷上。
一、听力部分（本题共20小题，每小题1・5分，共30分）第一节听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选岀最佳选项。
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. What will John do after school tomorrow?A. Watch a movie.B. Play badminton.C. Go to Grace's house.2. What color of shirt will the man choose?A. Black.B. White.C. Blue.3. What are the speakers doing?A. Decorating the bathroom.B. Buying new wallpaper.C. Complaining the house.4. What was the man's previous job?A. A teacher.B. A journalist.C. A secretary.5. What does the woman offer the man?A. A coat.B. A newspaper.C. An umbrella.第二节听下面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三个选项中选岀最佳选项。
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。
2019-2020年高二下学期期末数学试卷(理科) 含解析
2019-2020年高二下学期期末数学试卷（理科）含解析一、选择题（本大题共12个小题，每小题5分，在每小题中，只有一项是符合题目要求的）1．已知集合A={x∈R||x|≤2}，B={x∈R|x≤1}，则A∩B=（）A．（﹣∞，2]B．[1，2]C．[﹣2，2] D．[﹣2，1]2．已知复数=i，则实数a=（）A．﹣1 B．﹣2 C．1 D．23．将点M的极坐标（4，）化成直角坐标为（）A．（2，2）B．C．D．（﹣2，2）4．在同一平面的直角坐标系中，直线x﹣2y=2经过伸缩变换后，得到的直线方程为（）A．2x′+y′=4 B．2x′﹣y′=4 C．x′+2y′=4 D．x′﹣2y′=45．如图，曲线f（x）=x2和g（x）=2x围成几何图形的面积是（）A．B．C．D．46．10件产品中有3件次品，不放回的抽取2件，每次抽1件，在已知第1次抽出的是次品的条件下，第2次抽到仍为次品的概率为（）A．B．C．D．7．下列说法中，正确说法的个数是（）①命题“若x2﹣3x+2=0，则x=1”的逆否命题为：“若x≠1，则x2﹣3x+2≠0”；②“x＞1”是“|x|＞1”的充分不必要条件；③集合A={1}，B={x|ax﹣1=0}，若B⊆A，则实数a的所有可能取值构成的集合为{1}．A．0 B．1 C．2 D．38．设某批产品合格率为，不合格率为，现对该产品进行测试，设第ε次首次取到正品，则P（ε=3）等于（）A．C32（）2×（）B．C32（）2×（）C．（）2×（）D．（）2×（）9．在10件产品中，有3件一等品，7件二等品，从这10件产品中任取3件，则取出的3件产品中一等品件数多于二等品件数的概率（）A． B．C．D．10．函数f（x）=e﹣x+ax存在与直线2x﹣y=0平行的切线，则实数a的取值范围是（）A．（﹣∞，2]B．（﹣∞，2）C．（2，+∞）D．[2，+∞）11．函数y=e sinx（﹣π≤x≤π）的大致图象为（）A．B． C． D．12．已知曲线C1：y=e x上一点A（x1，y1），曲线C2：y=1+ln（x﹣m）（m＞0）上一点B（x2，y2），当y1=y2时，对于任意x1，x2，都有|AB|≥e恒成立，则m的最小值为（）A．1 B．C．e﹣1 D．e+1二、填空题（本大题共4个小题，每小题5分，共20分）13．已知随机变量X服从正态分布X～N（2，σ2），P（X＞4）=0.3，则P（X＜0）的值为．14．若函数f（x）=x2﹣alnx在x=1处取极值，则a=．15．如图的三角形数阵中，满足：（1）第1行的数为1；（2）第n（n≥2）行首尾两数均为n，其余的数都等于它肩上的两个数相加．则第10行中第2个数是．16．在平面直角坐标系xOy中，直线1与曲线y=x2（x＞0）和y=x3（x＞0）均相切，切点分别为A（x1，y1）和B（x2，y2），则的值为．三、解答题（本大题共6小题，共70分，解答应写出必要的文字说明、证明过程及演算步骤）17．在平面直角坐标系xOy中，圆C的参数方程为（φ为参数），直线l过点（0，2）且倾斜角为．（Ⅰ）求圆C的普通方程及直线l的参数方程；（Ⅱ）设直线l与圆C交于A，B两点，求弦|AB|的长．18．在直角坐标系xOy中，已知直线l：（t为参数），以坐标原点为极点，x轴正半轴为极轴建立极坐标系，曲线C：ρ2（1+sin2θ）=2．（Ⅰ）写出直线l的普通方程和曲线C的直角坐标方程；（Ⅱ）设点M的直角坐标为（1，2），直线l与曲线C 的交点为A、B，求|MA|•|MB|的值．19．生产甲乙两种元件，其质量按检测指标划分为：指标大于或者等于82为正品，小于82为次品，现随机抽取这两种元件各100件进行检测，检测结果统计如表：测试指标[70，76）[76，82）[82，88）[88，94）[94，100）元件甲8 12 40 32 8元件乙7 18 40 29 6（Ⅰ）试分别估计元件甲，乙为正品的概率；（Ⅱ）在（Ⅰ）的前提下，记X为生产1件甲和1件乙所得的正品数，求随机变量X的分布列和数学期望．20．设函数f（x）=x3﹣+6x．（Ⅰ）当a=1时，求函数f（x）的单调区间；（Ⅱ）若对∀x∈[1，4]都有f（x）＞0成立，求a的取值范围．21．为了研究家用轿车在高速公路上的车速情况，交通部门对100名家用轿车驾驶员进行调查，得到其在高速公路上行驶时的平均车速情况为：在55名男性驾驶员中，平均车速超过100km/h的有40人，不超过100km/h的有15人．在45名女性驾驶员中，平均车速超过100km/h 的有20人，不超过100km/h的有25人．（Ⅰ）完成下面的列联表，并判断是否有99.5%的把握认为平均车速超过100km/h的人与性别有关．平均车速超过100km/h人数平均车速不超过100km/h人数合计男性驾驶员人数女性驾驶员人数合计（Ⅱ）以上述数据样本来估计总体，现从高速公路上行驶的大量家用轿车中随机抽取3辆，记这3辆车中驾驶员为男性且车速超过100km/h的车辆数为X，若每次抽取的结果是相互独立的，求X的分布列和数学期望．参考公式与数据：Χ2=，其中n=a+b+c+dP（Χ2≥k0）0.150 0.100 0.050 0.025 0.010 0.005 0.001 k0 2.072 2.706 3.841 5.024 6.635 7.879 10.82822．已知函数f（x）=﹣alnx+1（a∈R）．（1）若函数f（x）在[1，2]上是单调递增函数，求实数a的取值范围；（2）若﹣2≤a＜0，对任意x1，x2∈[1，2]，不等式|f（x1）﹣f（x2）|≤m||恒成立，求m的最小值．2015-2016学年吉林省东北师大附中净月校区高二（下）期末数学试卷（理科）参考答案与试题解析一、选择题（本大题共12个小题，每小题5分，在每小题中，只有一项是符合题目要求的）1．已知集合A={x∈R||x|≤2}，B={x∈R|x≤1}，则A∩B=（）A．（﹣∞，2]B．[1，2]C．[﹣2，2] D．[﹣2，1]【考点】交集及其运算．【分析】先化简集合A，解绝对值不等式可求出集合A，然后根据交集的定义求出A∩B即可．【解答】解：∵A={x||x|≤2}={x|﹣2≤x≤2}∴A∩B={x|﹣2≤x≤2}∩{x|x≤1，x∈R}={x|﹣2≤x≤1}故选D．2．已知复数=i，则实数a=（）A．﹣1 B．﹣2 C．1 D．2【考点】复数代数形式的乘除运算．【分析】直接由复数代数形式的乘除运算化简复数，再根据复数相等的充要条件列出方程组，求解即可得答案．【解答】解：===i，则，解得：a=1．故选：C．3．将点M的极坐标（4，）化成直角坐标为（）A．（2，2）B．C．D．（﹣2，2）【考点】简单曲线的极坐标方程．【分析】利用x=ρcosθ，y=ρsinθ即可得出直角坐标．【解答】解：点M的极坐标（4，）化成直角坐标为，即．故选：B．4．在同一平面的直角坐标系中，直线x﹣2y=2经过伸缩变换后，得到的直线方程为（）A．2x′+y′=4 B．2x′﹣y′=4 C．x′+2y′=4 D．x′﹣2y′=4【考点】伸缩变换．【分析】把伸缩变换的式子变为用x′，y′表示x，y，再代入原方程即可求出．【解答】解：由得，代入直线x﹣2y=2得，即2x′﹣y′=4．故选B．5．如图，曲线f（x）=x2和g（x）=2x围成几何图形的面积是（）A．B．C．D．4【考点】定积分在求面积中的应用．【分析】利用积分的几何意义即可得到结论．【解答】解：由题意，S===4﹣=，故选：C．6．10件产品中有3件次品，不放回的抽取2件，每次抽1件，在已知第1次抽出的是次品的条件下，第2次抽到仍为次品的概率为（）A．B．C．D．【考点】条件概率与独立事件．【分析】根据题意，易得在第一次抽到次品后，有2件次品，7件正品，由概率计算公式，计算可得答案．【解答】解：根据题意，在第一次抽到次品后，有2件次品，7件正品；则第二次抽到次品的概率为故选：C．7．下列说法中，正确说法的个数是（）①命题“若x2﹣3x+2=0，则x=1”的逆否命题为：“若x≠1，则x2﹣3x+2≠0”；②“x＞1”是“|x|＞1”的充分不必要条件；③集合A={1}，B={x|ax﹣1=0}，若B⊆A，则实数a的所有可能取值构成的集合为{1}．A．0 B．1 C．2 D．3【考点】命题的真假判断与应用．【分析】①根据逆否命题的定义进行判断②根据充分条件和必要条件的定义进行判断，③根据集合关系进行判断．【解答】解：①命题“若x2﹣3x+2=0，则x=1”的逆否命题为：“若x≠1，则x2﹣3x+2≠0”正确，故①正确，②由|x|＞1得x＞1或x＜﹣1，则“x＞1”是“|x|＞1”的充分不必要条件；故②正确，③集合A={1}，B={x|ax﹣1=0}，若B⊆A，当a=0时，B=∅，也满足B⊆A，当a≠0时，B={}，由=1，得a=1，则实数a的所有可能取值构成的集合为{0，1}．故③错误，故正确的是①②，故选：C8．设某批产品合格率为，不合格率为，现对该产品进行测试，设第ε次首次取到正品，则P（ε=3）等于（）A．C32（）2×（）B．C32（）2×（）C．（）2×（）D．（）2×（）【考点】n次独立重复试验中恰好发生k次的概率．【分析】根据题意，P（ε=3）即第3次首次取到正品的概率，若第3次首次取到正品，即前两次取到的都是次品，第3次取到正品，由相互独立事件的概率计算可得答案．【解答】解：根据题意，P（ε=3）即第3次首次取到正品的概率；若第3次首次取到正品，即前两次取到的都是次品，第3次取到正品，则P（ε=3）=（）2×（）；故选C．9．在10件产品中，有3件一等品，7件二等品，从这10件产品中任取3件，则取出的3件产品中一等品件数多于二等品件数的概率（）A． B．C．D．【考点】古典概型及其概率计算公式．【分析】先求出基本事件总数，再求出取出的3件产品中一等品件数多于二等品件数包含的基本事件个数，由此能求出取出的3件产品中一等品件数多于二等品件数的概率．【解答】解：∵在10件产品中，有3件一等品，7件二等品，从这10件产品中任取3件，基本事件总数n==120，取出的3件产品中一等品件数多于二等品件数包含的基本事件个数m==22，∴取出的3件产品中一等品件数多于二等品件数的概率p===．故选：C．10．函数f（x）=e﹣x+ax存在与直线2x﹣y=0平行的切线，则实数a的取值范围是（）A．（﹣∞，2]B．（﹣∞，2）C．（2，+∞）D．[2，+∞）【考点】利用导数研究曲线上某点切线方程．【分析】利用在切点处的导数值是切线的斜率，令f′（x）=2有解；利用有解问题即求函数的值域问题，求出值域即a的范围．【解答】解：f′（x）=﹣e﹣x+a据题意知﹣e﹣x+a=2有解即a=e﹣x+2有解∵e﹣x+2＞2∴a＞2故选C11．函数y=e sinx（﹣π≤x≤π）的大致图象为（）A．B． C． D．【考点】抽象函数及其应用．【分析】先研究函数的奇偶性知它是非奇非偶函数，从而排除A、D两个选项，再看此函数的最值情况，即可作出正确的判断．【解答】解：由于f（x）=e sinx，∴f（﹣x）=e sin（﹣x）=e﹣sinx∴f（﹣x）≠f（x），且f（﹣x）≠﹣f（x），故此函数是非奇非偶函数，排除A，D；又当x=时，y=e sinx取得最大值，排除B；故选：C．12．已知曲线C1：y=e x上一点A（x1，y1），曲线C2：y=1+ln（x﹣m）（m＞0）上一点B（x2，y2），当y1=y2时，对于任意x1，x2，都有|AB|≥e恒成立，则m的最小值为（）A．1 B．C．e﹣1 D．e+1【考点】利用导数求闭区间上函数的最值．【分析】当y1=y2时，对于任意x1，x2，都有|AB|≥e恒成立，可得：=1+ln（x2﹣m），x2﹣x1≥e，一方面0＜1+ln（x2﹣m）≤，．利用lnx≤x﹣1（x≥1），考虑x2﹣m≥1时．可得1+ln（x2﹣m）≤x2﹣m，令x2﹣m≤，可得m≥x﹣e x﹣e，利用导数求其最大值即可得出．【解答】解：当y1=y2时，对于任意x1，x2，都有|AB|≥e恒成立，可得：=1+ln（x2﹣m），x2﹣x1≥e，∴0＜1+ln（x2﹣m）≤，∴．∵lnx≤x﹣1（x≥1），考虑x2﹣m≥1时．∴1+ln（x2﹣m）≤x2﹣m，令x2﹣m≤，化为m≥x﹣e x﹣e，x＞m+．令f（x）=x﹣e x﹣e，则f′（x）=1﹣e x﹣e，可得x=e时，f（x）取得最大值．∴m≥e﹣1．故选：C．二、填空题（本大题共4个小题，每小题5分，共20分）13．已知随机变量X服从正态分布X～N（2，σ2），P（X＞4）=0.3，则P（X＜0）的值为0.3．【考点】正态分布曲线的特点及曲线所表示的意义．【分析】根据随机变量X服从正态分布，可知正态曲线的对称轴，利用对称性，即可求得P （X＜0）．【解答】解：∵随机变量X服从正态分布N（2，o2），∴正态曲线的对称轴是x=2∵P（X＞4）=0.3，∴P（X＜0）=P（X＞4）=0.3．故答案为：0.3．14．若函数f（x）=x2﹣alnx在x=1处取极值，则a=2．【考点】利用导数研究函数的极值．【分析】求出函数的导数，得到f′（1）=0，得到关于a的方程，解出即可．【解答】解：∵f（x）=x2﹣alnx，x＞0，∴f′（x）=2x﹣=，若函数f（x）在x=1处取极值，则f′（1）=2﹣a=0，解得：a=2，经检验，a=2符合题意，故答案为：2．15．如图的三角形数阵中，满足：（1）第1行的数为1；（2）第n（n≥2）行首尾两数均为n，其余的数都等于它肩上的两个数相加．则第10行中第2个数是46．【考点】归纳推理．【分析】由三角形阵可知，上一行第二个数与下一行第二个数满足等式a n +1=a n +n ，利用累加法可求．【解答】解：设第一行的第二个数为a 1=1，由此可得上一行第二个数与下一行第二个数满足等式a n +1=a n +n ，即a 2﹣a 1=1，a 3﹣a 2=2，a 4﹣a 3=3，…a n ﹣1﹣a n ﹣2=n ﹣2，a n ﹣a n ﹣1=n ﹣1， ∴a n =（a n ﹣a n ﹣1）+（a n ﹣1﹣a n ﹣2）+…+（a 4﹣a 3）+（a 3﹣a 2）+（a 2﹣a 1）+a 1 =（n ﹣1）+（n ﹣2）+…+3+2+1+1 =+1=，∴a 10==46．故答案为：46．16．在平面直角坐标系xOy 中，直线1与曲线y=x 2（x ＞0）和y=x 3（x ＞0）均相切，切点分别为A （x 1，y 1）和B （x 2，y 2），则的值为．【考点】抛物线的简单性质．【分析】求出导数得出切线方程，即可得出结论．【解答】解：由y=x 2，得y ′=2x ，切线方程为y ﹣x 12=2x 1（x ﹣x 1），即y=2x 1x ﹣x 12， 由y=x 3，得y ′=3x 2，切线方程为y ﹣x 23=3x 22（x ﹣x 2），即y=3x 22x ﹣2x 23， ∴2x 1=3x 22，x 12=2x 23， 两式相除，可得=．故答案为：．三、解答题（本大题共6小题，共70分，解答应写出必要的文字说明、证明过程及演算步骤） 17．在平面直角坐标系xOy 中，圆C 的参数方程为（φ为参数），直线l 过点（0，2）且倾斜角为．（Ⅰ）求圆C 的普通方程及直线l 的参数方程；（Ⅱ）设直线l 与圆C 交于A ，B 两点，求弦|AB |的长． 【考点】参数方程化成普通方程． 【分析】（Ⅰ）圆C 的参数方程为（φ为参数），利用cos 2φ+sin 2φ=1消去参数可得圆C 的普通方程．由题意可得：直线l 的参数方程为．（Ⅱ）依题意，直线l的直角坐标方程为，圆心C到直线l的距离d，利用|AB|=2即可得出．【解答】解：（Ⅰ）圆C的参数方程为（φ为参数），消去参数可得：圆C的普通方程为x2+y2=4．由题意可得：直线l的参数方程为．（Ⅱ）依题意，直线l的直角坐标方程为，圆心C到直线l的距离，∴|AB|=2=2．18．在直角坐标系xOy中，已知直线l：（t为参数），以坐标原点为极点，x轴正半轴为极轴建立极坐标系，曲线C：ρ2（1+sin2θ）=2．（Ⅰ）写出直线l的普通方程和曲线C的直角坐标方程；（Ⅱ）设点M的直角坐标为（1，2），直线l与曲线C 的交点为A、B，求|MA|•|MB|的值．【考点】简单曲线的极坐标方程；参数方程化成普通方程．【分析】（Ⅰ）直线l：（t为参数），消去参数t可得普通方程．曲线C：ρ2（1+sin2θ）=2，可得ρ2+（ρsinθ）2=2，把ρ2=x2+y2，y=ρsinθ代入可得直角坐标方程．（Ⅱ）把代入椭圆方程中，整理得，设A，B对应的参数分别为t1，t2，由t得几何意义可知|MA||MB|=|t1t2|．【解答】解：（Ⅰ）直线l：（t为参数），消去参数t可得普通方程：l：x﹣y+1=0．曲线C：ρ2（1+sin2θ）=2，可得ρ2+（ρsinθ）2=2，可得直角坐标方程：x2+y2+y2=2，即．（Ⅱ）把代入中，整理得，设A，B对应的参数分别为t1，t2，∴，由t得几何意义可知，．19．生产甲乙两种元件，其质量按检测指标划分为：指标大于或者等于82为正品，小于82为次品，现随机抽取这两种元件各100件进行检测，检测结果统计如表：测试指标[70，76）[76，82）[82，88）[88，94）[94，100）元件甲8 12 40 32 8元件乙7 18 40 29 6（Ⅰ）试分别估计元件甲，乙为正品的概率；（Ⅱ）在（Ⅰ）的前提下，记X为生产1件甲和1件乙所得的正品数，求随机变量X的分布列和数学期望．【考点】离散型随机变量的期望与方差；古典概型及其概率计算公式；离散型随机变量及其分布列．【分析】（Ⅰ）利用等可能事件概率计算公式能求出元件甲，乙为正品的概率．（Ⅱ）随机变量X的所有取值为0，1，2，分别求出相应的概率，由此能求出随机变量X的分布列和数学期望．【解答】解：（Ⅰ）元件甲为正品的概率约为：，元件乙为正品的概率约为：．（Ⅱ）随机变量X的所有取值为0，1，2，，，，所以随机变量X的分布列为：X 0 1 2P所以：．20．设函数f（x）=x3﹣+6x．（Ⅰ）当a=1时，求函数f（x）的单调区间；（Ⅱ）若对∀x∈[1，4]都有f（x）＞0成立，求a的取值范围．【考点】利用导数求闭区间上函数的最值；利用导数研究函数的单调性．【分析】（Ⅰ）求出函数的导数，解关于导函数的不等式，求出函数的单调区间即可；（Ⅱ）问题转化为在区间[1，4]上恒成立，令，根据函数的单调性求出a的范围即可．【解答】解：（Ⅰ）函数的定义域为R，当a=1时，f（x）=x3﹣x2+6x，f′（x）=3（x﹣1）（x﹣2），当x＜1时，f′（x）＞0；当1＜x＜2时，f′（x）＜0；当x＞2时，f′（x）＞0，∴f（x）的单调增区间为（﹣∞，1），（2，+∞），单调减区间为（1，2）．（Ⅱ）即在区间[1，4]上恒成立，令，故当时，g（x）单调递减，当时，g（x）单调递增，时，∴，即．21．为了研究家用轿车在高速公路上的车速情况，交通部门对100名家用轿车驾驶员进行调查，得到其在高速公路上行驶时的平均车速情况为：在55名男性驾驶员中，平均车速超过100km/h的有40人，不超过100km/h的有15人．在45名女性驾驶员中，平均车速超过100km/h 的有20人，不超过100km/h的有25人．（Ⅰ）完成下面的列联表，并判断是否有99.5%的把握认为平均车速超过100km/h的人与性别有关．平均车速超过100km/h人数平均车速不超过100km/h人数合计男性驾驶员人数401555女性驾驶员人数202545合计6040100（Ⅱ）以上述数据样本来估计总体，现从高速公路上行驶的大量家用轿车中随机抽取3辆，记这3辆车中驾驶员为男性且车速超过100km/h的车辆数为X，若每次抽取的结果是相互独立的，求X的分布列和数学期望．参考公式与数据：Χ2=，其中n=a+b+c+dP（Χ2≥k0）0.150 0.100 0.050 0.025 0.010 0.005 0.001 k0 2.072 2.706 3.841 5.024 6.635 7.879 10.828【考点】离散型随机变量的期望与方差；独立性检验；离散型随机变量及其分布列．【分析】（Ⅰ）完成下面的列联表，并判断是否有99.5%的把握认为平均车速超过100km/h的人与性别有关．求出Χ2，即可判断是否有99.5%的把握认为平均车速超过100km/h的人与性别有关．（Ⅱ）根据样本估计总体的思想，从高速公路上行驶的大量家用轿车中随机抽取1辆，驾驶员为男性且车速超过100km/h的车辆的概率，X可取值是0，1，2，3，，求出概率得到分布列，然后求解期望即可．【解答】解：（Ⅰ）平均车速超过100km/h人数平均车速不超过100km/h人数合计男性驾驶员人数40 15 55女性驾驶员人数20 25 45合计60 40 100因为，所以有99.5%的把握认为平均车速超过100km/h与性别有关．…（Ⅱ）根据样本估计总体的思想，从高速公路上行驶的大量家用轿车中随机抽取1辆，驾驶员为男性且车速超过100km/h的车辆的概率为．X可取值是0，1，2，3，，有：，，，，分布列为X 0 1 2 3P．…22．已知函数f（x）=﹣alnx+1（a∈R）．（1）若函数f（x）在[1，2]上是单调递增函数，求实数a的取值范围；（2）若﹣2≤a＜0，对任意x1，x2∈[1，2]，不等式|f（x1）﹣f（x2）|≤m||恒成立，求m的最小值．【考点】利用导数求闭区间上函数的最值；利用导数研究函数的单调性．【分析】（1）求出函数的导数，问题转化为a≤x2，求出a的范围即可；（2）问题可化为，设，求出函数的导数，问题等价于m≥x3﹣ax在[1，2]上恒成立，求出m的最小值即可．【解答】解：（1）∵在[1，2]上是增函数，∴恒成立，…所以a≤x2…只需a≤（x2）min=1…（2）因为﹣2≤a＜0，由（1）知，函数f（x）在[1，2]上单调递增，…不妨设1≤x1≤x2≤2，则，可化为，设，则h（x1）≥h（x2）．所以h（x）为[1，2]上的减函数，即在[1，2]上恒成立，等价于m≥x3﹣ax在[1，2]上恒成立，…设g（x）=x3﹣ax，所以m≥g（x）max，因﹣2≤a＜0，所以g'（x）=3x2﹣a＞0，所以函数g（x）在[1，2]上是增函数，所以g（x）max=g（2）=8﹣2a≤12（当且仅当a=﹣2时等号成立）．所以m≥12．即m的最小值为12．…2016年10月17日。