2019版高考英语一轮课时提升作业： 三十三 选修7 Unit 3 Word版含答案

选修7 Unit 3 高考试卷分块专练(安排3课时作业)练(一)阅读理解提速练(限时35分钟)第一节(共15小题；每小题2分，满分30分)APublic Art Manager in University College London (UCL)Location: Central London, Greater LondonJob level: ManagementEducation level: Undergraduate degree (or equivalent)Salary:￡42,304 －￡49,904 per yearHours: Full-timeUCL department: UCL CultureThe appointment will be full-time on UCL Grade 8. UCL Culture manages museums, theatres and collections and facilitates engagement within and outside of UCL. We bring diverse performers and audiences into the heart of UCL to enrich the student experience and fuel UCL's creative culture with cutting-edge cultural experiences. We use our objects, insights and expertise to reframe questions and surface new ideas.The post holder will develop and deliver a public art strategy for UCL and an accompanying events programme that can make the public and communities take part in UCL research and teaching through arts and culture. The successful candidate will have experience of managing complex and large-scale public art projects and building relationships with artists, contractors and community groups. They will have experience of contributing to and implementing (实施) organizational strategy, the ability to communicate clearly both orally and in writing and an interest in community engagement.For further information about this post contact Sophie Elgood (s. elgood@ ucl. ac. uk)．For further details about the vacancy and how to apply online please go to http：//www. ucl. ac. uk/hr/jobs/ and search on Reference Number 1617169.We particularly welcome applications from black and minority ethnic candidates as theyare under-represented within UCL at this level.语篇解读：本文是一则招聘广告，介绍了一所大学招聘“公共艺术经理”的相关信息。

Unit 3 Under the seaⅠ.阅读理解ADear readers ，Medical related emergencies are on the rise. More seniors are seeking anind ependent lifestyle and better quality of life.Over 1 in 3 people over the ageof 64 will fall this year. Nearly half will not be able to get up without support.Medical expenses can increase when a person is not given timely support. You can prevent a me dical catastrophe with our 24-hour emergency response system. Our solution is highly recommended by doctors ， healthcare professionals ，and hospitals.We are offering a FREE Medical Alert System to seniors or their loved ones who call now. For a limited time, there will be no set-up fees and themedical monitoring starts at less than a dollar a day. The system is top-rankedand easy-to-use. The pendant is 100% waterproof and it can travel with you.Our new system can detect falls automatically.Call Toll-Free 1-800-360-0405 and gain peace of mind.There is no long-term contract.Our medical alert professionals can walk you through everything over the phone.The first 100 callers to order will receive：·Free Medical Alert System ($ 300 Value)·24 Hours a Day/7 Days a Week LIVE Monitoring and Support·Free Waterproof Necklace Pendant or Wristband·No Long-Term Contract·Free ShippingDon't wait until after a fall to give us a call.Take advantage of this special offer now to protect yourself or a loved one.Call Now Toll-Free 1-800-360-0405.Sincerely ，Jim NelsonPresident [语篇解读 ]本文主假如给读者介绍一种老人医疗预警系统。

2019届高三英语一轮复习题组层级快练33 Unit 3 Under the sea 新人教版选修7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（2019届高三英语一轮复习题组层级快练33 Unit 3 Under the sea 新人教版选修7）的内容能够给您的工作和学习带来便利。

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题组层级快练33 Unit 3 Under the seaⅠ。

阅读理解When our daughter， Sandy, belonged to the St. Mark Evangelical Lutheran Girl Pioneers in sixth grade, the leaders thought it would be nice if the girls made pine cone wreaths (花环)for their families as Christmas gifts. So the group gathered pine cones, put them in water and bought wire wreath frames and adhesive(黏合剂) to hold everything in place。

A few days before Christmas， they and their leaders delivered the finished handiwork。

Through the years， we proudly hung up her wreath each Christmas。

课时规范练33(选修7Unit 3)Ⅰ.阅读理解Understanding what’s killing the world’s coral reefs (珊瑚礁) has been the life work of Mark Hay,the Teasley Professor in the School of Biology at the Georgia Institute of Technology.During the past 35 years,he’s made more than 5,000 dives in both the Caribbean and Pacific — and each year he spends as much as five months with villagers on the Fiji Islands.On November 7,2015,he received the Lowell Thomas Award from the New York-based Explorer’s Club.“Dr Hay’s research and discoveries have influenced the foundations in the field of marine (海洋的) chemical ecology and created new procedures for effective conservation and management of the world’s coral reefs,” the organization said.Hay notes that over the last 40 years,the world has lost 80% of coral reefs in the Caribbean and 50% of the reefs in the Pacific.“For about a billion people around the world in the tropics (热带地区),coral reefs are one of the major sources of protein,so the loss affects food security for these areas,”he said.“Reef s also provide storm protection for low-lying villages,absorbing big waves coming into shore.”Hay’s research has focused on the complex interactions between species that are part of the reef community.These plants and animals communicate with each other by sending chemical signals.For instance,seaweed harms coral by sending poisonous chemicals,and by mechanically damaging it.Certain fish control the seaweed,but overfishing has allowed seaweed to get out of control.Among recent examples,Hay and his partners have learned that degraded reefs produce chemicals that tell baby fish and baby coral to stay away.Unless those signals can somehow be changed,damaged reefs won’t have a chance to recover.Many coral reef organisms lack hearing or vision.Instead,they must rely for their information on chemical signals provided by other organisms.1.According to the first paragraph,Mark Hay.A.devotes himself to studying oceansB.is very interested in outdoor activitiesC.is the best expert in studying coral reefsD.does most of his experiments in the wild2.What made Mark Hay win the prize?A.His deep devotion to land management.B.His great efforts to conserve marine plants.C.His huge contribution to the safety at sea.D.His new methods for protecting coral reefs.3.M ark Hay’s words in Para.3 suggest that.A.coral reefs do much good for sea lifeB.coral reefs are being damaged seriouslyC.the loss of coral reefs has broad impactsD.people have realized the importance of coral reefs4.What is the interaction between certain fish and coral reefs?A.Certain fish can protect coral reefs.B.Coral reefs may be destroyed by certain fish.C.Certain fish send chemical signals to coral reefs.D.Coral reefs produce chemicals to attract certain fish.〚导学号23280132〛Ⅱ.完形填空(2018·江西抚州临川一中期中检测)Two years ago,when I was still at university,I also worked at a restaurant.Every day I would see people sitting there,doing whatever they1.How I envied them!I couldn’t,2,because Ihad to work nine hours a day and 3 the rest of the time.For the rest of my life I will 4 the difficulties of that time forever.Last Sunday,it was rainy;a5 was hitting the city.What a perfect day to sit and 6 !I went into a coffee bar,ordered a cup of coffee,and sat down to read the newspaper.Then an old man,helped by a nurse,entered with his whole body shaking.Every step seemed to be a7for him.I wasn’t sure,but he looked 8 to me.I approached him,and recognized him as one of my customers two years ago.He was a retired professor.We had become friends in the9.We often did word puzzles together,and he was always the first to 10.One day,after some weeks,I finally finished before him.The next day he gave me,as a 11,an expensive Scrabble set,which I would 12 have been able to afford myself.I felt very13 when I saw him again this time.He had loved to 14,but now his mouth could not manage it.15 and wise as he had been,he was struck by kidney cancer like an ordinary man.I told him I had got married,and decided not to 16 my studies.I was embarrassed 17 I knew I was letting him down,but he seemed to sense my 18 and said something I would never 19.“Kate,many people spend their whole life 20 happiness.Be thankful that you have found it.”1.A.liked B.interestedC.imaginedD.chose2.A.meanwhile B.howeverC.thereforeD.whatever3.A.date B.studyC.sleepD.play4.A.desire B.describeC.rememberD.record5.A.bomb B.planeC.floodD.storm6.A.relax B.entertainC.talkD.wait7.A.pleasure B.surpriseC.powerD.struggle8.A.funny B.strangeC.familiarD.dangerous9.A.university B.restaurantC.hotelD.hospital10.A.put them down B.take them offC.get them awayD.work them out11.A.prize B.jobC.toolD.punishment12.A.always B.sometimesuallyD.never13.A.sad B.scaredC.shyD.happy14.A.say B.eatughD.think15.A.Weak B.AngryC.IntelligentD.Stupid16.A.start B.stopC.leaveD.continue17.A.because B.soC.thoughD.if18.A.doubt B.concernC.firmnessD.fear19.A.hear B.believeC.forgetD.meet20.A.learning from B.sticking toC.searching forD.handing over〚导学号23280133〛Ⅲ.语篇填空In much of Asia,especially the so-called “rice bowl” culture ofChina,Japan,South,Korea,1. Vietnam,food is usually eaten with chopsticks.Chopsticks are usually two long,thin pieces of wood or bamboo.They can also be made of plastic,animal bone or metal.Sometimes chopsticks are quite artistic.Truly elegant chopsticks might 2.(make) of gold and silver with Chinese characters.Skilled workers also combine various hardwoods and metal 3.(create)special designs.The Chinese have used chopsticks for five thousand years.People probably cooked their food in large pots,4.(use)twigs(树枝)to remove it.Over time,5.the population grew,people began cutting food into small pieces so it would be cooked more quickly.Food in small pieces could be eaten easily with twigs which6.(gradual)turned into chopsticks.Some people think that the great Chinese scholar Confucius,7. lived from roughly 551 to 479 B.C.,influenced the 8.(develop) of chopsticks.Confucius believed knives would remind people of killings and 9.(be) too violent for use at the table.Chopsticks are not used everywhere in Asia.In India,for example,most people traditionally eat 10. their hands.〚导学号23280134〛Ⅳ.短文改错(2018·黑龙江哈尔滨师范大学附属中学期中检测)When I was a senior in a high school,I had a teacher calling Mrs Smith.She taught English and she has an important effect on me.She was fill of love for us.She had our class to make posters and hang it around the school.She taught us that one kindly act can go long way.Well,Mrs Smith passed away just a couple of year ago after a long battle with the breast cancer.I’ll never forget how a wonderful and sweet lady she was.I am truly blessed to have known her.I am going to be a teacher like her and I’ll always remember his kindness.〚导学号23280135〛答案：Ⅰ.【解题导语】本文为说明文。

2017高考英语一轮练习及答案—人教版选修7 Unit 3选修7一、单句语法填空1．He________ (flee)to America without hesitation after an argument with his parents. 2．Every morning，my father gets up very early and ________ (jog)for about an hour，which is good for his health.3．The villagers planned to ________ (deep)the well so as to get more water from it. 4．The final score of the basketball match was 93：were________ (narrow)beaten. 5．We turned the bicycle lights off ________ (conserve)the batteries and the________ (conserve)is necessary.6．The report called for ________ (urge)action to reduce lead (铅)in petrol.7．________ (bury)in the research，he didn't notice what happened around him. 8．________ (catch)in the heavy rain，he was wet to the skin.9．It was a time when we________ (live)in harmony with nature.10．The approach ________ (get)close to the island is going by boat.答案conserve；conservation9．lived getting二、完形填空阅读下面短文，掌握其大意，然后从以下题所给的A、B、C、D四个选项中，选出最佳选项。

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三十三选修7 Unit 3Under the sea(限时35分钟)Ⅰ. 阅读理解ANasr Majid started hunting this fall at Blackwater National Wildlife Refuge (保护区)on the Eastern Shore of Maryland in the USA. He’s one of the relatively few new hunters who officials hope will help stop a nearly fourdecade decline nationally in what has bee a hobby for fewer than 5 percent of Americans.Natural resources and wildlife officials in Maryland are encouraging hunting of deer, turkeys and some other wild animals, which is believed to be good for the environment. Without hunting, they say, sika deer will overpopulate the wildlife refuge and they’ll overeat the bushes and other plants that provide important habitat for birds. On the western shore of the Chesapeake Bay, hunting is also important to prevent the spread of diseases such as Lyme.In many families, the hunting tradition has been handed down for generations. But as longtime sportsmen age and children lose interest,the number of hunters in the United States fell by 2 million, from 2011 to 2018, to about 11 million.“Everything is changing. Kids are growing up in front of video games and puters instead of going hunting. ” said Chris Markin, a hunting special ist for the state natural resources department. “Adults usually focus on working and providing for their families. Those pressures are preventing many other potential hunters from going out, and from raising the next generation of hunters. ”To avoid such a decline, a new approach is needed. Government agencies and nonprofit groups are now launching mentoring (指导)programs to train more hunters, which not only helps preserve an industry and a culture but also means more protection for wildlife and their habitats through deer population control and investment.Luckily, there are those still eager to learn, like Majid. He was just looking for an outdoor hobby he could share with his children when he came across the mentorship program. Now, he feels capable of hunting on his own, but also has someone he can text with questions that pop up. His new pastime has already paid off for him — on his second hunt with his mentor, in the last minutes of daylight, he bagged his first deer. 【文章大意】本文是一篇说明文, 介绍了Nasr Majid在美国马里兰州东海岸的黑水国家野生动物保护区狩猎。

课时作业(三十三) [选修7 Unit 3 Under the sea](限时：35分钟)Ⅰ.单项填空1．They urged that the library________open during the vacation.A．was kept B．would be keptC．is kept D．be kept2．Recent years have________the rapid development of the Internet and its influence on society and people.A．watched B．observedC．witnessed D．realized3．The event has not only increased public________of world hunger，but raiseda lot of money for the poor children.A．direction B．contributionC．awareness D．loneliness4．Why don't you bring________to his attention that you are too ill to work on?A．that B．it C．his D．him5．The local government provided ________ for the homeless soon after theflood.A．possessions B．accommodationsC．souvenirs D．groceries6．The last decade of the 21st century ________the rapid, steady developmentof China in various fields.A. witnessedB. was witnessedC. is witnessedD. had witnessed7．________ on his past mistakes, Ted realized that he had stayed around the wrong people.A. To reflectB. ReflectingC. Reflected D．Being reflected8．When I________in the kitchen，nothing made me feel better than preparingthe eggs and serving them just the way the customers wanted.A．helped out B．figured outC．worked out D．found out9．________ of the urgency of the current situation makes him want to learn more.A．Being aware B．AwareC．To be aware D．Be aware10．The frequent robbers' attacks near the banks were so often that it________ the local police to take immediate action to fight against the criminals.A．called B．charged C．urged D．impressed11．________ unemployment and crime are high，it can be assumed that thelatter is due to the former.A．Before B．Where C．Unless D．Until12．You have no idea how she finished the relay race________her foot wounded so much.A．for B．when C．with D．while13．After trying many times，they had to ________ the hope of saving the seriously wounded elephant.A．abandon B．releaseC．discourage D．resign14．Tom doesn't really work here.He ________ until his brother recovers and comes to work again.A．just helps out B．was just helped outC．is just helping out D．will just help out15．Research ________ out supports my idea that our company should take action in no time.A．to carry B．carryingC．being carried D．having carriedⅡ.完形填空There's always been a debate on whether human beings are born good orbad.Depending on how you view the world，you can think of all the crimes and injustice and conclude that we're bad，so we need a system of laws to keep us in check.However，there are also a lot of stories of good deeds.I think we're all born good.Today，I took a trip to South Bend to attend my friends' wedding reception.I had__16__the night before at the forecast and it said we were going to get about 3 inches of snow，so I thought，“That's not so__17__．” I set out on my journey and it was completely clear until I__18__to get towards Niles，M1…I was__19__with this ominous(不祥的) cloud. I thought to myself，“Hmm，this can't be a good__20__．” Soon enough，the highway became a snow­packe d wall of white.I should have remembered that such severe changes in__21__are common in this part of America.I then tried to get to the populous area of South Bend andgot__22__in the snow，__23__to turn left onto a street. I__24__for 20 minutes to dig myself out with only a scraper(刮刀)．It wasn't a very__25__street，so I didn't see many people.Just as I was starting to give up，a few people stopped by my car and then helped push me out of the snow bank.It was one person at first，and then a few others.Then，on the way to my destination，another lady got stuck.__26__，I got out and was__27__to offer the same help that I had received.At least five others joined me in my__28__to get her car unstuck.It is kind of storm that makes roads undrivable.South Bend__29__up getting over 3 feet of snow.In these__30__of kindness though，I was once again__31__of my belief that all people are born good.These people(后续内容，请见下页。

课时作业(三十三) [选修7 Unit 3 Under the sea][限时：30分钟]Ⅰ.完形填空Tired and exhausted, I came back home from work. I found the front door was __1__open and I felt a little scared. I looked around__2__to see what could be __3__. Why would someone come into my home only to__4__with nothing? After searching every inch, I realized that everything was where I had left it. No __5__cushions, or drawers emptied out on the carpet. Feeling much __6__， I looked out my oversized window of my dining room at Ms Sullivan's house. Jimmy, the little boy next door, was visiting her. Jimmy cared a lot about Ms Sullivan and was very concerned with her health after she became ill.Forgetting about the __7__with my front door, I decided to walk over to Ms Sullivan's house to see how she was __8__. With a warm hello, she invited me into her home. I noticed twelve beautiful roses delicately presented on the table next to her bed. They looked exactly like the __9__on my dining room table in front of my oversized window. With a pleasant smile, she told me Jimmy brought them to her as a“get－well gift”. Suddenly Jimmy__10__out of his seat in an instant and said that he had to go home for a while to do some homework but he __11__ to be back to check up on Ms Sullivan.Talking for a while, I left her home. I thought about how__12__it was for little Jimmy to be so concerned for Ms Sullivan. I got home, laughing at how__13__I was that morning about what had happened over nothing. I walked passed the dining room and noticed my roses__14__in the vase were missing. Without a second __15__， I glanced out the window at Ms Sullivan's house and with a smile on my face I turned off the light in the room and went to sleep.The next morning my door bell rang. I opened the door. Jimmy was there…1．A.easily B．slowlyC．slightly D．silently2．A.tensely B．patientlyC．eagerly D．calmly3．A.burning B．losingC．lacking D．missing4．A.get B．dealC．steal D．leave5．A.worn B．changedC．unwashed D．overturned6．A.eased B．angryC．surprised D．curious7．A.accident B．experienceC．incident D．condition8．A.working B．doingC．sleeping D．acting9．mps B．vasesC．roses D．gifts10．A.stood B．ranC．stepped D．jumped11．A.promoted B．promisedC．hoped D．urged12．A.smart B．sensitiveC．sweet D．thankful13．A.strange B．nervousC．careless D．wrong14．A.growing B．sittingC．lying D．arranging15．A.thought B．intentionC．expectation D．delayⅡ.阅读理解ASome scientists say that animals in the oceans are increasingly threatened by noise pollution caused by human beings.The noise that affects sea creatures comes from a number of human activities. It is caused mainly by industrial underwater explosions, ocean drilling, and ship engines. Such noises are added to natural sounds. These sounds include the breaking of ice fields, underwater earthquakes, and sounds made by animals themselves.Decibels (分贝) measured in water are different from those measured on land. A noise of one hundred and twenty decibels on land causes pain to human ears. In water, a decibel level of one hundred and ninety－five would have the same effect.Some scientists have proposed setting a noise limit of one hundred and twenty decibels in the oceans. They have observed that noises at that level can frighten and confuse whales.A team of American and Canadian scientists discovered that louder noises can seriously injure some animals.The research team found that powerful underwater explosions were causing whales in the area to lose their hearing. This seriously affected the whales' ability to exchange information and find their way. Some of the whales even died. The explosions had caused their ears to bleed and become infected.Many researchers whose work depends on ocean sounds object to a limit of one hundred and twenty decibels. They say such a limit would mean an end to important industrial and scientific research.Scientists do not know how much and what kinds of noises are harmful to ocean animals. However, many scientists suspect that noise is a greater danger than they believed. They want to prevent noises from harming creatures in the ocean.16．According to the passage, which of the following is increasingly dangerous to sea creatures?A．The sound of cars.B．The sound of voices.C．Man－made noise pollution.D．The sound of steps.17．According to the passage, natural sounds include all of the following EXCEPT________.A．sounds made by animals themselvesB．ocean drillingC．underwater earthquakesD．the breaking of ice fields18．Which of the following is discussed in the third paragraph?A．The same noise level produces a different effect on land and in the ocean.B．Different places may have different types of noises.C．The decibel is not a suitable unit for measuring underwater noise.D．Different ocean animals may have different reactions to noises.19．Which of the following is true of whales?A．They won't be confused by noises.B．They are deaf to noises.C．Their ability to reproduce will be lowered by high－level noises.D．Their hearing will be damaged by high－level noises.20．According to the passage, what will scientists most probably do in the future?A．They will work hard to reduce ocean noise pollution.B．They will protect animals from harmful noises.C．They will try to set a limit of 120 decibels.D．They will study the effect of ocean noise pollution.BThe sea has always interested man. From it we can get food, minerals, and treasure. For thousands of years, we could sail on it. But we could not go far beneath its surface. Man wants to explore deep into the sea. However，we are not fish. We must breathe air, so we can't stay under the water's surface for any length of time. To explore deep water, man faces even more dangers and problems. A diver who wants to stay under water for more than a few minutes must breathe air or a special mixture of gases. He can wear a diving suit and have air pumped to him from above. He can carry a tank of air on his back and breathe through a nose and a mouthpiece. Water weighs 800 times as much as air. Tons of water pushes against a diver deep in the sea. His body is under great pressure. When a diver is under great pressure, his blood takes in some of the gases he breathes. As he rises to surface, the water pressure becomes less. If the diver rises too quickly, the gases in his blood form bubbles. The diver is then suffering from the bends. The bends can cause a diver to double up in pain. They can even kill him.21．On the whole, this passage is about________.A．special mixtures of gases in deep seaB．the problems man faces in deep－sea divingC．air pressure under the surface of sea waterD．a kind of illness that man suffers in the sea22．A diver's body in deep water________.A．is under great pressureB．is just like that of a fishC．suffers from the bendsD．weighs very little23．The passage does not say so, but it makes you think that________.A．deep divers should be in good healthB．divers explore the deep sea only for treasureC．diving under the water too quickly causes a kind of illnessD．there is a special mixture of gases under the sea24．Why does a diver get the bends?A．He tries to do exercise under the water.B．His diving suit weighs too much.C．He comes to the surface too quickly.D．The air in his blood is used up.25．From the passage we can see that________.A．the sea began to interest man in the last few yearsB．man is not at home deep in the seaC．all divers will get the bends sooner or laterD．the air in the sea water will kill a diver if he is not careful答案课时作业(三十三)Ⅰ.1.C考查副词辨析。

课时作业(三十三)Ⅰ.阅读理解IwasdrivingfromHarrisburgtoLewisburglastnight，adistanceofabouteightymiles.Itwaslate.SeveraltimesIgotstuckbehindaslow－movingtruckonanarrowroadwithasolidwhitelineonmyleft，andIwasclinching(紧握)myfistswithimpatience.Atonepointalonganopenhighway，Icametoacrossroadswiththetrafficlight.Iwasaloneontheroadbynow，butasIapproachedthelight，itturnedredandIbrakedtostop.Ilookedleft，rightandbehindme.Nothing.Notacar，nosuggestionofheadlights，butthereIsat，waitingforthelighttochange，theonlyhumanbeingforatleastamileinanydirection.IstartedwonderingwhyIrefusedtorunthelight.Iwasnotafraidofbeingarrested，becausetherewereobviouslynopolicearound，andtherecertainlywouldhavebeennodangeringoingthroughit.Muchlaterthatnight，thequestionofwhyI'dstoppedforthatlightcamebacktome.IthinkIstoppedbecauseit'spar tofanagreementweallhavewitheachother.It'snotonlythelaw，butit'sanagreementwehave，andwetrusteachothertohonorit：wedon'tgothroughredlights.It'samazingthatweevertrustedeachothertodotherightthing，isn'tit？Andwedo，too.Trustisourfirsttendency.Wehavetomakeadeliberatedecisiontomistrustsomeoneort obesuspiciousorskeptical.Thoseattitudesdon'tcomenaturallytous.It'saverygoodthing，too，becausethewholestructureofoursocietydependsonmutualtrust，notdistrust.Thiswholethingarounduswouldfallapartifwedidn'ttrusteachothermostoft hetime.Wedowhatwesaywe'lldo;weshowupwhenwesaywe'llshowup;wedeliverwhenwesaywe'l ldeliver;andwepaywhenwesaywe'llpay.Wetrusteachotherinthesematters，andwhenwedon'tdowhatwe'vepromised，it'sfarfromthenormal.Ithappensoftenthatwedon'tactingoodfaithandinatrustworthyma nner，butwestillconsideritunusual，andwe'reangryordisappointedwiththosebadly－behavedpeople.Anyway，Iwassoproudofmyselfforstoppingfortheredlightthatnight.1．Whydidtheauthorfeelimpatientwhiledriving?A．Becausehehadalreadydrivenforalongtime.B．Becauseitwastoofarawayfromhisdestination.C．Becausesomethingurgenthappenedinhisfamily.D．Becausehecouldnotoverpassatruckonanarrowroad.2．Theauthorstoppedatthetrafficlightbecause__________.A．therewerepassers－bycrossingtheroadB．somepolicemenwereondutyjustatthatpointC．thetrustbetweenpeopleinfluencedtheauthorD．therewaspotentialdanger3．Whatwouldhappenifpeopledidn'ttrusteachotherinmostcases?A．Allthethingswouldrunnormally.B．Thesocialsystemwouldbethrownintodisorder.C．Thesocialtraditionswouldbeabandoned.D．Strictrulesandlawswouldbemade.4．Whatisthethemeofthepassage?A．Mutualtrustisthebestpolicy.B．Abirdinhandisworthtwointhebush.C．Actionsspeaklouderthanwords.D．Amongtheblindtheone－eyedistheking.答案：[解题导语]有一次，作者在本可以闯红灯的情况下却选择了等待，这次经历让他想到，整个社会的构建依赖于人与人之间的相互信任。

课时作业(三十三)[选修7Unit 3 Under the sea][限时：30分钟]Ⅰ.单项填空1．The noise from the top floor, loud and constant, of the meeting-room ________ can be clearly heard in our classroom.A．being decorated B．having been decoratedC．to be decorated D．decorated2．________ in the leg made it impossible for me to walk as fast as usual.A．Being injured B．To be injuredC．Having injured D．Injured3．The silence of the library is sometimes broken by a sudden cough or the sound of pages ________.A．turning B．turnedC．being turned D．having turned4．She was wounded by an arrow, but still urged her ________.A．march B．marchedC．to march D．should march5．Usain Bolt ________ what he will be bringing to the audience as he prepares to defend his title in the London Olympics.A．is well aware of B．is well worth ofC．is content with D．is satisfied with6．To their relief, their students ________ escaped from the shaking building.A．narrowly B．slightlyC．nearly D．lightly7．Anyone who has spent time with children is ________ of the difference in the way boys and girls respond to similar situations.A．scared B．awareC．pure D．vivid8．[2011·全国卷Ⅱ] It is one thing to enjoy listening to good music, but it is ________ another to play it well yourself.A．quite B．veryC．rather D．much9．You buy the fruits, ________ I'll cook breakfast.A．on other hand B．the same timeC．in the meantime D．at all time10．I am sorry to say I can't help ________ the room because I am busy right now.A．cleaning B．being cleanedC．clean D．cleans11．Having checked the doors were closed, and ________all the lights were off, the boy opened the door to his bedroom.A．why B．thatC．when D．where12．—Hi, haven't seen you for ages! You look fine.—________. You look well too.A．Not at all B．Oh, noC．Great D．Thanks13．The foreign friends you referred to ________ looking forward to ________ around our university.A．are; being shownB．being; being shownC．being; showingD．are; be shown14．Some pupils are often scared ________ some money in the corner of the streets by a few young men.A．to offer B．into offeringC．to be offered D．to be offering15．[2011·上海卷] When Mom looked back on the early days of their marriage, she wondered how they had managed with ________ money.A．so few B．such fewC．so little D．such littleⅡ.阅读理解ASome scientists say that animals in the ocean are increasingly threatened by noise pollution caused by human beings.The noise that affects sea creatures comes from a number of human activities.It is caused mainly by industrial underwater explosions, ocean drilling, and ship engines.Such noises are added to natural sounds.These sounds include the breaking of ice fields, underwater earthquakes, and sounds made by animals themselves.Decibels (分贝) measured in water are different from those measured on land.A noise of one hundred and twenty decibels on land causes pain to human ears.In water, a decibel level of one hundred and ninety-five would have the same effect.Some scientists have proposed setting a noise limit of one hundred and twenty decibels in oceans.They have observed that noises at that level can frighten and confuse whales.A team of American and Canadian scientists discovered that louder noises can seriously injure some animals.The research team found that powerful underwater explosions were causing whales in the area to lose their hearing.This seriously affected the whales' ability to exchange information and find their way.Some of the whales even died.The explosions had caused their ears to bleed and become infected.Many researchers whose work depends on ocean sounds object to a limit of one hundred and twenty decibels.They say such a limit would mean an end to important industrial and scientific research.Scientists do not know how much and what kinds of noises are harmful to ocean animals.However, many scientists suspect that noise is a greater danger than they believed.They want to prevent noises from harming creatures in the ocean.16．According to the passage, which of the following is increasingly dangerous to sea creatures?A．The sound of a car.B．The sound of voices.C．Man-made noise pollution.D．The sound of steps.17．According to the passage, natural sounds include all of the following EXCEPT________.A．sounds made by animals themselvesB．ocean drillingC．underwater earthquakesC．the breaking of ice fields18．Which of the following is discussed in the third paragraph?A．The same noise level produces a different effect on land and in the ocean.B．Different places may have different types of noises.C．The decibel is not a suitable unit for measuring underwater noise.D．Different ocean animals may have different reactions to noises.19．Which of the following is TRUE of whales?A．They won't be confused by noises.B．They are deaf to noises.C．Their ability to reproduce will be lowered by high-level noises.D．Their hearing will be damaged by high-level noises.20．According to the passage, what will scientists most probably do in the future?A. They will work hard to reduce ocean noise pollution.B．They will protect animals from harmful noises.C．They will try to set a limit of 120 decibels.D．They will study the effect of ocean noise pollution.BThe sea has always interested man.From it he can get food, minerals, and treasure.For thousands of years, he could sail on it.But he could not go far beneath its surface.Man wants to explore deep into the sea.However, he is not a fish.He must breathe air, so he can't stay under the water's surface for any length of time.To explore deep water, man faces even more dangers and problems.A diver who wants to stay under water for more than a few minutes must breathe air or a special mixture of gases.He can wear a diving suit and have air pumped to him from above.He can carry a tank of air on his back and breathe through a nose and a mouthpiece.Water weighs 800 times as much as air.Tons of water pushes against a diver deep in the sea.His body is under great pressure.When a diver is under great pressure, his blood takes in some of the gases he breathes.As he rises to surface, the water pressure becomes less.If the diver rises too quickly, the gases in his blood form bubbles.The diver is then suffering from the bends.The bends can cause a diver to double up in pain.They can even kill him.21．On the whole, this passage is about ________.A．special mixtures of gases in deep seaB．the problems man faces in deep-sea divingC．air pressure under the surface of sea waterD．a kind of illness that man suffers in the sea22．A diver's body in deep water ________.A．is under great pressureB．is just like that of a fishC．suffers from the bendsD．weighs very little23．The passage does not say so, but it makes you think that ________.A．deep-divers should be in good healthB．divers explore the deep sea only for treasureC．diving under the water too quickly causes a kind of illnessD．there is a special mixture of gases under the sea24．Why does a diver get the bends?A．He tries to do exercises under the water.B．His diving suit weighs too much.C．He comes to the surface too quickly.D．The air in his blood is used up.25．From the passage we can see that ________.A．the sea began to interest man a few years agoB．man is not at home deep in the seaC．all divers will get the bends sooner or laterD．the air in the sea water will kill a diver if he is not careful答案课时作业(三十三)Ⅰ.1.A考查现在分词作定语。