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1、Four short words sum up what has lifted most successful individuals above the crowd: a little bit more.-author-date高中英语人教版选修7Unit3测试卷(B)高中英语人教版选修7Unit3测试卷(B)选修七 Unit 3 Under the sea单元测试B时间：90分钟，满分：100分.单项填空(每小题1分，满分15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。1Mr. Smith is very kind and friendly_his students, b
2、ut he is also very strict_them.Awith; toBto; withCto; to Dwith; with2Are you satisfied with the result?Not at all. It couldnt be_.Aany better Bany worseCso bad Dthe worst3I can still remember the sittingroom_my mother and I used to sit in the evening.Athat BwhichCwhere Dwherever4It is reported that
3、the_of the fire in the bookstore was that the manager was too careless.Aexcuse BreasonCcause Dquestion5When you finish reading the book, youll have_better understanding of_life.Aa; the Bthe; aC/; the Da; /6No matter what you say, I shall_my own position on this question.Ainsist on Bget on withCkeep
4、up Dstick to7He tried many times to sneak across the boarder to a neighboring country, _each time.Ahaving been caught Bunluckily caughtCalways being caught Donly to be caught8Who would you rather_the office?Joyce, of course.Ahave cleaned Bget cleanedCget clean Dhave clean9Hi, havent seen you for age
5、s! You look fine._. You look well, too.ANot at all BOh, noCGreat DThanks10The accused had many_to prove that he was not guilty.Ajudges BwitnessesClawyers Dpassersby11I think you should phone Jenny and say sorry to her._. It was her fault.ANo way BNot possibleCNo chance DNot at all12He is the only pe
6、rson who saw the accident_. So he is the most important witness.Ahappen Bto happenChaving happened Dhappened13I often log on the website, because its_with much useful information.Apleased BpackedCburdened Dcovered14We had a picnic last term and it was full of fun, so lets have_one this month.Athe ot
7、her BsomeCanother Dother15They_drinking although they are drivers.Agive up Bdevote themselves toCquit Dabandon themselves to.完形填空(共20小题；每小题1分，满分20分)阅读下面短文，理解大意，从题中(120)所给的A、B、C、D四个选项中选出一个最佳答案。All water, even rain water, contains dissolved chemicals which scientists call“salts”. But not all water16sa
8、lty. Water is fresh or salty according to17judgement, and in making this decision man is more18by his sense of taste than by a laboratory test. It is ones taste buds that accept one water and19another.A simple experiment illustrates this. Fill three20with water from the kitchen faucet. Drink from on
9、e and it tastes fresh even though some dissolved salts are21present. Add a pinch of table salt to the second, and the water may taste fresh or slightly22depending on a personal taste threshold and on the23of salt held in a“pinch”. But add a teaspoon of salt24the third and your taste buds vehemently
10、protest that this water is too salty to drink; this glass of water has about the same salt content as a glass of sea water.25， the ocean, in contrast to the water we use daily, contains26amounts of dissolved chemicals; it is too salty for human consumption.Some scientists estimate that the oceans co
11、ntain as27as 50 quadrillion tons(50 million billion tons)of dissolved solids.If the salt in the sea could be28and spread evenly over the Earths land surface it would form a layer more than 500 feet29， about the height of a 40story office building. What30the scientists curiosity is not so much31the o
12、cean is salty, but why it isnt32like the rivers and streams that empty into it. Further, what is the33of the sea and of its“salts”？ And how does one34ocean waters remarkably uniform chemical composition? To these and related35， scientists seek answers with full awareness that little about the oceans
13、 is understood.16A.drinks BseemsCfeels Dtastes17A.respectable BindividualCcollective Dcommon18A.believed BconvincedCfirmed Dpersuaded19A.object BabandonCreject Dreceive20A.glasses BcupsCbowls Dbottles21A.normally BregularlyCartificially Dnaturally22A.sweet BsaltyCbitter Dsour23A.amount BnumberCquali
14、ty Dtotal24A.with BtoCinto Don25A.Subsequently BAbsolutelyCObviously DGenerally26A.unbelievable BabnormalCimaginable Dunacceptable27A.many BmuchClittle Dfew28A.removed BleftCmoved Dproduced29A.high BthickCwide Dbroad30A.causes BraisesCarouses Dlifts31A.how BasCthat Dwhy32A.fresh BsaltyCcool Dclean33
15、A.rule BoriginCbase Dresource34A.say BseeCexplain Dexpress35A.problems BmatterCsituations Dquestions.阅读理解(共20小题，每小题2分，满分40分)阅读下面的文章，从题中所给的A、B、C、D四个选项中选出最佳答案。AI realized that I was getting cold, and felt it was probably time to go back to the apartment, so I put my collar up against the wind and bega
16、n to walk back up the cold street. I managed to get some food from a vendor(小贩), and walked on.About twentyfive minutes later I knew that something was wrong. It was getting very, very cold, there were no streetlights, and the hill I was hoping to see on my right was nowhere in sight. There was almo
17、st no light except for mysterious red crosses shining from the tops of churches, and I was beginning to get worried. To cut a long story short, I had walked the wrong way from a crossroads, and had wandered miles in the wrong direction. My head was aching from the cold, and I couldnt think straight.
18、 Turning around, I started back, and a long time later was outside the house I had set off from. It was at about that time I realized that I had a gate key but no house key. How happy I was when I found that the front door was openmy only piece of good luck that day. My apartment was of course locke
19、d, my head felt like it was about to explode, and my hands and feet were freezing.I tried turning the handle. No luck. I tried another key from England. I wanted to avoid waking the family downstairs, so despite the fear of an early death from cold, I couldnt break the door down. What would my hosts
20、 think? I pulled an ATM card from my pocket and forced it alongside the inside of the lock. I didnt think it would work, but after fifteen minutes of trying, I heard a click. Another couple of minutes later the door was open. Relieved, I took off my clothes in the dark and got into bed.36The purpose
21、 of the passage is mainly to_.Atell us how difficult it is living abroadBshow us how terrible the weather wasCtell us an unusual experience abroadDshow us how afraid the author was37What made the author find he had walked the wrong way?AHe didnt see the house.BA vendor reminded him.CThe street name
22、reminded him.DHe didnt see the hill.38What can we learn from the passage?AThe front door was closed.BThe house had many locks.CThe author woke the hosts.DThe author came from England.39From the passage we can infer that the author was_.Acareful BcarelessCexcited DannoyingB(2010北京卷)I had an interesti
23、ng conversation with a reporter recentlyone who works for you. In fact, hes one of your best reporters. He wants to leave.Your reporter gave me a copy of his resume(简历)and photocopies of six stories that he wrote for you. The headlines showed you played them proudly. With great enthusiasm, he talked
24、 about how he finds issues(问题), approaches them, and writes about them, which tells me he is one of your best. Im sure you would hate to lose him.Surprisingly, your reporter is not unhappy. In fact, he told me he really likes his job. He has a great assignment(分工), and said you run a great paper. It
25、 would be easy for you to keep him, he said. He knows that the paper values him. He appreciates the responsibility youve given him, takes ownership of his profession, and enjoys his freedom.So why is he looking for a way out?He talked to me because he wants his editors to demand so much more of him.
26、 He wants to be pushed, challenged, coached to new heights.The reporter believes that good stories spring from good questions, but his editors usually ask how long the story will be, when it will be in, where it can play, and what the budget is.He longs for conversations with an editor who will help
27、 him turn his good ideas into great ones. He wants someone to get excited about what hes doing and to help him turn his story idea upside down and inside out, exploring the best ways to report it. He wants to be more valuable for your paper. Thats what you want for him, too, isnt it?So your reporter
28、 has set me thinking.Our best hope in keeping our best reporters, copy editors, photographers, artistseveryoneis to work harder to make sure they get the help they are demanding to reach their potential. If we cant do it, theyll find someone who can.40What does the writer think of the reporter?AOpti
29、mistic. BImaginative.CAmbitious. DProud.41What does the reporter want most from his editors in their talks?AFinding the news value of his stories.BGiving him financial support.CHelping him to find issues.DImproving his good ideas.42Who probably wrote the letter?AAn editor. BAn artist.CA reporter. DA
30、 reader.43The letter aims to remind editors that they should_.Akeep their best reporters at all costsBgive more freedom to their reportersCbe aware of their reporters professional developmentDappreciate their reporters working styles and attitudesCLike dogs, sharks rely on a sharp sense of smell to
31、track down food. But new research shows noses arent the only way that sharks detect smells: Their entire bodies, in fact, function as giant noses capable of even picking up the“shape”of a smell.Running down the sides of every shark are nervepacked strips called side lines. Researchers know these sen
32、sitive structures can detect the faint movements sent by living things in water, but their ability to pick up the smell was previously unknown. Even more surprising, researchers said, is that side lines can detect the 3D“plumes”of smellsstructures looking like turbulence left behind after waving a h
33、and through thick fog or steam.“Odor plumes are complex, dynamic, threedimensional structures used by many animal species to locate food, mates and home sites，”said Jelle Atema, a Boston University biologist and coauthor of the study detailed in an upcoming issue of the Journal of Experimental Biolo
34、gy. When prevented from using“odor plumes”information, the study shows, sharks are unable to find the source of an odor.To find this out, researchers did an experiment. They ran a stream of squid(鱿鱼)odor through a circulating water tank and noted a sharks ability to find the sourcewith no eddies(漩涡)
35、and plumes to track, the shark almost always failed. They then used the same setup, but added a brick behind the smell source, thereby mixing the flow of the squids smell and giving the shark more information to track it. Sure enough, the shark got on much better in locating the“prey”Researchers als
36、o numbed(麻醉)the lateral lines with a common antibiotic, producing a similarly disabling effect on the sharks hunting abilities.“The results are interesting for our understanding of animals navigation under water and for the development of guidance of autonomous underwater vehicles，”Atema said.44What
37、 was the purpose of the experiment?AThey wanted to prove sharks are good at locating the prey.BThey wanted to prove sharks are unable to find the source of an odor without using “odor plumes”information.CThey wanted to prove sharks have a better navigation ability under water.DThey wanted to prove s
38、harks can detect the faint movements sent by living things in water.45What part of body do dogs depend on to track down food?AMouths. BEyes.CTails. DNoses.46In the experiment, why was a brick added behind the smell source?ATo give the shark more time to track it.BTo give the shark less information t
39、o track it.CTo confuse the shark with too many different odors.DTo give the shark more information to track it.47Which is the main idea of the passage?ASharks use noses to hunt food.BHow do animals navigate in water?CSharks use“odor plumes”to hunt food.DOdor plumes are very useful for animals to loc
40、ate food, mates and home sites.D(2010浙江卷)My family and I lived across the street from Southway Park since I was four years old. Then just last year the city put a chain link fence around the park and started bulldozing(用推土机推平)the trees and grass to make way for a new apartment complex. When I saw th
41、e fence and bulldozers, I asked myself，“Why dont they just leave it alone？”Looking back, I think what sentenced the park to oblivion(被遗忘)was the drought(旱灾)we had about four years ago. Up until then, Southway Park was a nice green park with plenty of trees and a public swimming pool. My friends and
42、I rollerskated on the sidewalks, climbed the trees, and swam in the pool all the years I was growing up. The park was almost like my own yard. Then the summer I was fifteen the drought came and things changed.There had been almost no rain at all that year. The city stopped watering the park grass. W
43、ithin a few weeks I found myself living across the street from a huge brown desert. Leaves fell off the park trees, and pretty soon the trees started dying, too. Next, the park swimming pool was closed. The city cut down on the work force that kept the park, and pretty soon it just got too ugly and
44、dirty to enjoy anymore.As the drought lasted into the fall, the park got worse every month. The rubbish piled up or blew across the brown grass. Soon the only people in the park were beggars and other people down on their luck. People said drugs were being sold or traded there now. The park had gott
45、en scary, and my mother told us kids not to go there anymore.The drought finally ended and things seemed to get back to normal, that is, everything but the park. It had gotten into such bad shape that the city just let it stay that way. Then about six months ago I heard that the city was going to“re
46、develop”certain wornout areas of the city. It turned out that the city had planned to get rid of the park, sell the land and let someone build rows of apartment buildings on it.The chainlink fencing and the bulldozers did their work. Now we live across the street from six rows of apartment buildings. Each of them is three units high and stretches a block in e