高考英语一轮复习课时作业33 Unit 3 Under the sea 新人教版选修7（广东专用）.doc

课时作业(三十三)选修7unit 3under the sea限时：30分钟 .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 sullivans 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 sullivans 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“getwell 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 sullivans 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 there1a.easily bslowlycslightly dsilently2a.tensely bpatientlyceagerly dcalmly3a.burning blosingclacking dmissing4a.get bdealcsteal dleave5a.worn bchangedcunwashed doverturned6a.eased bangrycsurprised dcurious7a.accident bexperiencecincident dcondition8a.working bdoingcsleeping dacting9a.lamps bvasescroses dgifts10a.stood brancstepped djumped11a.promoted bpromisedchoped durged12a.smart bsensitivecsweet dthankful13a.strange bnervousccareless dwrong14a.growing bsittingclying darranging15a.thought bintentioncexpectation ddelay.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 ninetyfive 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. 16according to the passage, which of the following is increasingly dangerous to sea creatures?athe sound of cars.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 earthquakesdthe 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?athey 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 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 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 waterda 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_.adeep divers 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 exercise 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 in the last few yearsbman 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.c考查副词辨析。easily“容易地”；slowly“慢慢地”；slightly“稍微地”；silently“沉默地”。从下文的i felt a little scared看出，作者家里的门稍微有点开着。故选c项。2a考查语境。从文中的i felt a little scared看出，作者有点紧张。tensely“紧张地”，符合题意。故选a项。3d考查动词辨析。句子的意思是：作者环顾四周，看看有没有东西丢失。lose“丢失”，是及物动词；此处应用lost，表被动，不能用losing。句子的主语是what，故用missing。4d考查语境。此处的意思是“为什么有人会到我的家里不拿东西而离开？”leave“离开”，符合题意。故选d项。5d考查词义辨析。worn“穿坏的”；changed“改变的”；unwashed“没有洗的”；overturned“倾覆的，弄翻的”。句意：没有弄翻的垫子，没有。故选d项。6a考查语境。作者发现屋子里没有丢东西，感到很放松。eased“放松的”，符合题意。故选a项。7c考查名词辨析。accident“偶发事件，事故”；experience“经验，经历”；incident“事件”；condition“条件”。句意：我忘记了我家前门发生的事情，决定去ms sullivan的家看看她怎么样了。incident符合题意。故选c项。8b考查动词辨析。此处指身体状况如何，用doing与how搭配。故选b项。9c考查语境。根据前一句i noticed twelve beautiful roses delicately presented on the table next to her bed.可看出答案。故选c项。10d考查语境。从下文的in an instant and said that he had to go home for a while to do some homework看出，jimmy从座位上跳起来。故选d项。11b12c考查语境。句意：我认为小jimmy这么关心ms sullivan，是很高兴的、甜蜜的。sweet“甜蜜的，幸福的”，符合题意。故选c项。13b考查语境。从句中的i was that morning about what had happened over nothing 和前面作者看到自己家的门开着可以看出作者开始很紧张。故选b项。14b考查语境。句意：花瓶里的玫瑰花不见了。用动词sitting符合题意。故选b项。15a考查固定搭配。句意：作者毫不犹豫地向ms sullivan家的窗户看去 without a second thought“不加思考地，毫不犹豫地”，符合题意。故选a项。.a研究表明，噪音污染引起了海洋生物的危险。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 oceans are increasingly thre