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111课时作业(三十三)选修7Unit 3 Under the sea限时：30分钟.单项填空1The noise from the top floor, loud and constant, of the meetingroom _ can be clearly heard in our classroom.Abeing decorated Bhaving been decoratedCto be decorated Ddecorated2_ in the leg made it impossible for me to walk as fast as usual.ABeing injured BTo be injuredCHaving injured DInjured3The silence of the library is sometimes broken by a sudden cough or the sound of pages _.Aturning BturnedCbeing turned Dhaving turned4She was wounded by an arrow, but still urged her _.Amarch BmarchedCto march Dshould march5Usain Bolt _ what he will be bringing to the audience as he prepares to defend his title in the London Olympics.Ais well aware of Bis well worth ofCis content with Dis satisfied with6To their relief, their students _ escaped from the shaking building.Anarrowly BslightlyCnearly Dlightly7Anyone who has spent time with children is _ of the difference in the way boys and girls respond to similar situations.Ascared BawareCpure Dvivid82011全国卷 It is one thing to enjoy listening to good music, but it is _ another to play it well yourself.Aquite BveryCrather Dmuch9You buy the fruits, _ Ill cook breakfast.Aon other hand Bthe same timeCin the meantime Dat all time10I am sorry to say I cant help _ the room because I am busy right now.Acleaning Bbeing cleanedCclean Dcleans11Having checked the doors were closed, and _all the lights were off, the boy opened the door to his bedroom.Awhy BthatCwhen Dwhere12Hi, havent seen you for ages! You look fine._. You look well too.ANot at all BOh, noCGreat DThanks13The foreign friends you referred to _ looking forward to _ around our university.Aare; being shown Bbeing; being shownCbeing; showing Dare; be shown14Some pupils are often scared _ some money in the corner of the streets by a few young men.Ato offer Binto offeringCto be offered Dto be offering152011上海卷 When Mom looked back on the early days of their marriage, she wondered how they had managed with _ money.Aso few Bsuch fewCso little Dsuch little.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 ninetyfive 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.16According to the passage, which of the following is increasingly dangerous to sea creatures?AThe sound of a car.BThe sound of voices.CManmade noise pollution.DThe sound of steps.17According to the passage, natural sounds include all of the following EXCEPT_.Asounds made by animals themselvesBocean drillingCunderwater earthquakes Cthe breaking of ice fields18Which of the following is discussed in the third paragraph?AThe same noise level produces a different effect on land and in the ocean.BDifferent places may have different types of noises.CThe decibel is not a suitable unit for measuring underwater noise.DDifferent ocean animals may have different reactions to noises.19Which of the following is TRUE of whales?AThey wont be confused by noises.BThey are deaf to noises.CTheir ability to reproduce will be lowered by highlevel noises.DTheir hearing will be damaged by highlevel noises.20According to the passage, what will scientists most probably do in the future?A. They will work hard to reduce ocean noise pollution.BThey will protect animals from harmful noises.CThey will try to set a limit of 120 decibels.DThey 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 cant stay under the waters 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.21On the whole, this passage is about _.Aspecial mixtures of gases in deep seaBthe problems man faces in deepsea divingCair pressure under the surface of sea water Da kind of illness that man suffers in the sea22A divers body in deep water _.Ais under great pressureBis just like that of a fishCsuffers from the bendsDweighs very little23The passage does not say so, but it makes you think that _.Adeepdivers should be in good healthBdivers explore the deep sea only for treasureCdiving under the water too quickly causes a kind of illnessDthere is a special mixture of gases under the sea24Why does a diver get the bends?AHe tries to do exercises under the water.BHis diving suit weighs too much.CHe comes to the surface too quickly.DThe air in his blood is used up.25From the passage we can see that _.Athe sea began to interest man a few years agoBman is not at home deep in the seaCall divers will get the bends sooner or laterDthe air in the sea water will kill a diver if he is not careful答案课时作业(三十三).1.A考查现在分词作定语。being decorated意为“正在装修的”，修饰meetingroom。2A考查动名词作主语。此处injure与leg之间是被动关系，故用动名词的被动形式。3C考查现在分词作定语。turn与page之间是被动关系，being turned意为“正被翻动的”。4C考查urge的用法。urge后跟从句时谓语用“(should)动词原形”，should可省略；也可用urge sb. to do sth.。由于urge后跟宾格her，故排除A、D。答案为C。5A考查固定短语。be well aware of “对非常清楚”；be well worth “非常值得”；be content with “对满意”；be satisfied with “对满意”。句意为：当尤塞恩博尔特准备在伦敦奥运会卫冕的时候，他很清楚他将为观众带来什么。因此答案为A。6A考查副词辨析。narrowly “勉强地，以毫厘之差”； slightly “稍微地”，强调程度；nearly “接近，几乎”； lightly “轻轻地；轻松地；容易地；不费力地”。本句意为：令他们欣慰的是，他们的学生刚好勉强从摇晃的大楼中逃脱。7B考查形容词词义辨析。句意：任何和小孩待过的人都知道男孩和女孩应对相似情况的方式是不同的。be aware of 意识到。8A考查副词辨析。句意为：喜欢听好音乐是一回事，自己能演奏好又完全是另外一回事。A项表示“完全”；B项very一般用在形容词、副词、限定词前面，也可表示“正是”；C项rather表示“相当，很”，可用于形容词、副词、比较级、限定词以及too等的前面；D项much表示“很多”，可修饰比较级。根据句意及用法选择A项。9C考查短语辨析。in the meantime “同时，在期间”。句意：你去买水果，同时我来做早餐。at all time “无论何时”，on other hand “另一方面”，均不符合题意。10C考查非谓语动词。cant help doing sth.禁不住/情不自禁做某事，不符合题意；cant help do/to do sth.不能帮助做某事。11B考查宾语从句。句意：确保门关上了，且所有的灯都关上了之后，那个男孩打开门进了他的卧室。checked后跟了两个宾语从句，第一个从句的引导词that省略了。12D考查交际用语。当别人赞赏你的时候，应该从礼貌的角度表示感谢。13A考查句子结构及look forward to 的基本用法。本句主语是the foreign friends，you referred to是定语从句，所以谓语动词使用are，构成现在进行时；短语look forward to中的to是介词，用动名词形式作其宾语。14B考查scare的用法。句意：在街道的拐角处，一些青年人威胁小学生交出钱来。scare sb.into doing sth.“威胁某人做某事”。15C考查副词用法。句意：当妈妈回顾他们婚姻初期时，她不知道他们是如何在如此少的金钱的情况下顺利度过那些日子的。当名词前有few，little(少), many 或much修饰时用副词so，而不用such，又因为money为不可数名词，故选C。.A研究表明，噪声污染对海洋生物带来了危险，科学家将来要采取措施拯救海洋生物，阻止噪音对海洋生物的伤害。16C细节理解题。由第一段Some scientists say that animals in the ocean are increasingly threatened by noise pollution caused by human beings.可知，来自人类的噪声污染对海洋生物带来了危险。17B细节理解题。由第二段These sounds include the breaking of ice fields, underwater earthquakes, and sounds made by animals themselves.可知，ocean drilling不是自然界的声音。18A细节理解题。由第三段可知，同样分贝的噪音对海洋和陆地产生的影响不同。19D细节理解题。由第六段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.可知，水下巨大的爆炸声会使鲸鱼失去听力，甚至丧生。20B判断推理题。由文章的最后一句话They want to prevent noises from harming creatures in the ocean.可知，科学家将来要采取措施阻止噪音对海洋生物的伤害。B自古以来，海底丰富的资源一直吸引着人类。然而，从事深水潜水探索，却不是一件轻松的工作。本文向我们介绍的就是深水潜水员所面临的困难和挑战。21B主旨大意题。由文章结构可以看出，文章首先点明了海洋对人类的重大意义，然后提出了文章要说明的主题：To explore deep water, man faces even more dangers and problems.下文围绕这一主题作了详细的说明。22A细节理解题。由第三段的最后一句(under great pressure)以及前文的叙述可知。23A推理判断题。最后一段告诉我们：潜水员在深水里要承受巨大的压力，浮到水面时，水压骤减，这对人体提出很大的挑战。由此可以推断从事深海潜水工作的人，身体应该健康(in good health)。24C细节理解题。由最后一段的If the diver rises too quicklyThe diver is then suffering from the bends.可知，潜水员得减压病(the bends)的原因是在海水中上升得太快。25B推理判断题。从文章内容可以知道，在深海潜水时，人会面临更大的危险和更多的麻烦(more dangers and problems)，包括呼吸、高压造成的不适，甚至会得减压病。由此可以判断：人在深海是很不舒适的。解答此题的关键是准确理解选项中at home的意思， 在句中相当于 comfortable and relaxed, at ease。111
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