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1、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, but he is also very strict_them. Awith; to Bto; with Cto; to Dwith; with 2Are you satisfied with the result? Not at all. It couldnt be_. Aany b
2、etter Bany worse Cso bad Dthe worst 3I can still remember the sitting- room_my mother and I used to sit in the evening. Athat Bwhich Cwhere Dwherever 4It is reported that the_of the fire in the bookstore was that the manager was too careless. Aexcuse Breason Ccause Dquestion 5When you finish reading
3、 the book, youll have_better understanding of_life. Aa; the Bthe; a C/; the Da; / 6No matter what you say, I shall_my own position on this question. Ainsist on Bget on with Ckeep up Dstick to 7He tried many times to sneak across the boarder to a neighboring country, _each time. Ahaving been caught B
4、unluckily caught Calways being caught Donly to be caught 8Who would you rather_the office? Joyce, of course. Ahave cleaned Bget cleaned Cget clean Dhave clean 9Hi, havent seen you for ages! You look fine. _. You look well, too. ANot at all BOh, no CGreat DThanks 10The accused had many_to prove that
5、he was not guilty. Ajudges Bwitnesses Clawyers Dpassers- by 11I think you should phone Jenny and say sorry to her. _. It was her fault. ANo way BNot possible CNo chance DNot at all 12He is the only person who saw the accident_. So he is the most important witness. Ahappen Bto happen Chaving happened
6、 Dhappened 13I often log on the website, because its_with much useful information. Apleased Bpacked Cburdened D covered 14We had a picnic last term and it was full of fun, so lets have_one this month. Athe other Bsome Canother D other 15They_drinking although they are drivers. Agive up Bdevote thems
7、elves to Cquit D abandon 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 water 16salty. Water is fresh or salty according to17judgement, and in making this de
8、cision man is more 18by his sense of taste than by a laboratory test. It is ones taste buds that accept one water and19 another. A simple experiment illustrates this. Fill three20with water from the kitchen faucet. Drink from one and it tastes fresh even though some dissolved salts are21present. Add
9、 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 protest that this water is too salty to drink; this glass of water has a
10、bout 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 contain as27as 50 quadrillion tons(50 million billion tons)of dissolved s
11、olids. 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 40- story office building. What30the scientists curiosity is not so much31the ocean is salty, but why it isnt32like the rivers and streams that emp
12、ty 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 is understood. 16A.drinks Bseems Cfeels D tastes 17A.respectable Bi
13、ndividual Ccollective Dcommon 18A.believed Bconvinced Cfirmed D persuaded 19A.object Babandon Creject D receive 专业文档 珍贵文档 20A.glasses Bcups Cbowls Dbottles 21A.normally Bregularly Cartificially Dnaturally 22A.sweet Bsalty Cbitter Dsour 23A.amount Bnumber Cquality Dtotal 24A.with Bto Cinto Don 25A.Su
14、bsequently BAbsolutely CObviously DGenerally 26A.unbelievable Babnormal Cimaginable Dunacceptable 27A.many Bmuch Clittle Dfew 28A.removed Bleft Cmoved Dproduced 29A.high Bthick Cwide Dbroad 30A.causes Braises Carouses Dlifts 31A.how Bas Cthat Dwhy 32A.fresh Bsalty Ccool Dclean 33A.rule Borigin Cbase
15、 Dresource 34A.say Bsee Cexplain Dexpress 35A.problems B matter Csituations 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。 A I 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 began to
16、 walk back up the cold street. I managed to get some food from a vendor(小贩 ), and walked on. About twenty- five 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 open my only piece of good luck that day. My apartment was of course lock
19、ed, 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 hos
20、ts 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 purp
21、ose of the passage is mainly to_. Atell us how difficult it is living abroad Bshow us how terrible the weather was Ctell us an unusual experience abroad Dshow us how afraid the author was 37What made the author find he had walked the wrong way? AHe didnt see the house. BA vendor reminded him. CThe s
22、treet name 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 Bcareless Cexcited D annoying B (201
23、0 北京卷 ) I had an interesting 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
24、 great enthusiasm, he talked 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
25、 said you run a great paper. It 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 edito
26、rs to demand so much more of him. 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 convers
27、ations with an editor who will help 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
28、 him, too, isnt it? So your reporter has set me thinking. Our best hope in keeping our best reporters, copy editors, photographers, artists everyoneis 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
29、 the writer think of the reporter? AOptimistic. BImaginative. CAmbitious. D Proud. 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 t
30、he letter? AAn editor. BAn artist. CA reporter. DA reader. 43The letter aims to remind editors that they should_. Akeep their best reporters at all costs Bgive more freedom to their reporters Cbe aware of their reporters professional development Dappreciate their reporters working styles and attitud
31、es C Like dogs, sharks rely on a sharp sense of smell to 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 nerve
32、- packed strips called side lines. Researchers know these sensitive 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 smells s
33、tructures looking like turbulence left behind after waving a hand through thick fog or steam. “Odor plumes are complex, dynamic, three-dimensional structures used by many animal species to locate food, mates and home sites ，” said Jelle Atema, a Boston University biologist and co-author of the study
34、 detailed in an upcoming issue of the Journalof ExperimentalBiology . 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
35、tank and noted a sharks ability to find the sourcewith no eddies( 漩涡 )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 eno
36、ugh, the shark got on much better in locating the “prey” Researchers also 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 de
37、velopment of guidance of autonomous underwater vehicles ，” Atema said. 44What 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 p
38、rove sharks have a better navigation ability under water. DThey wanted to prove sharks 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
39、source? ATo give the shark more time to track it. BTo give the shark less information to 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 i
40、n water? CSharks use“ odor plumes”to hunt food. DOdor plumes are very useful for animals to locate 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
41、started bulldozing(用推土机推平)the trees and grass to make way for a new apartment complex. When I saw the 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
42、then, Southway Park was a nice green park with plenty of trees and a public swimming pool. My friends and 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
43、things changed. There had been almost no rain at all that year. The city stopped watering the park grass. Within 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 wa
44、s closed. The city cut down on the work force that kept the park, and pretty soon it just got too ugly and 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 a
45、nd other people down on their luck. People said drugs were being sold or traded there now. The park had gotten 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 s
46、hape that the city just let it stay that way. Then about six months ago I heard that the city was going to “redevelop”certain worn- out 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 chain-
47、link 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 each direction. The neighborhood has changed without the park. The streets I used to play in are jammed with cars now. Things
48、will never be the same again. Sometimes_I_wonder,_though,_what_changes_another_drought_would_make_in_the_way_things_are_today . 48How did the writer feel when he saw the fence and bulldozers? AScared. BConfused. Cupset. D Curious. 49Why was the writer told not to go to the park by his mother? AIt was being rebuilt. BIt was dangerous. CIt became crowded. DIt had turned into a desert. 50According to the writer, what eventually brought about the disappearance of the park? AThe drought.