2021大学英语考试考前冲刺卷（7）.docx

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1、2021大学英语考试考前冲刺卷（7）本卷共分为1大题50小题，作答时间为180分钟，总分100分，60分及格。一、单项选择题（共50题，每题2分。每题的备选项中，只有一个最符合题意） 1.The number of times per minute that you breathe is_.Afixed at twenty-two times per minuteBinfluenced by your age and sexCdependent upon the amount of fresh air available to you at any given timeDcontrolled

2、automatically by an unspecified body mechanism 2.Which of the following is Not true of the greenhouse effectAIt will make chilly places better for agriculture.BDesert regions may receive more precipitation.CThere would be less land on earth.DSome warm places would be cool. 3.The greenhouse effect_.A

3、is a problem raised recentlyBhas drawn extensive attention all over the worldCis the warming caused by an increase of CO2Dshould be imputed to the well-developed countries 4.After reading the passage, we may conclude_.Athe author is worried about the greenhouse effectBthe author asks all of us to re

4、duce the use of coalCthe greenhouse effect is welcome as it is a mixed blessingDthe greenhouse effect has affected our life now 5.The concentration of carbon dioxide is caused by_.Athe heat accumulated in the atmosphereBthe burning of coalCthe wide use of renewable energyDthe destruction of the trop

5、ical rain forest 6.The author writes the passage to tell the readerAwhat is the greenhouse effectBhow serious the greenhouse effect would beCit is important to reduce the use of fossil fuelsDhow to change the greenhouse effect 7.America will never again have as a nation the spirit of adventure as it

6、 _ before the West was settled.AcouldBdidCwouldDwas 8.The prince is _ to the throne.AbenefactorBhellCheirDheiress 9.Our civilization cannot be thought of as _ in a short period of time.Ato have been createdBto be createdChaving been createdDbeing created 10.There is an increasing _ to make movies de

7、scribing violence.AstrengthBdirectionCtraditionDtrend 11.After 10 hours at the wheel of the car, he began to feel the _.AtensionBnervousCexertionDstrain 12.The introduction of fabrics made from rayon, nylon and other _ fibers has made many changes in our civilization.AmanufacturedBartificialCsynthet

8、icDmanned 13.It was requested that all of the equipment _ in the agreed time.AerectedBwould be erectedCbe erectedDwill be erected 14._ there is little we can do to modify the weather, we can at least know what kind of weather to expect.ASinceBWhenCWhileDUnless 15.To an especially sensitive child, a

9、simple scolding can be a _ experience.AhystericalBgrievousCgraciousDsensible 16.It took a lot of imagination to come up with such an _ plan.AbrightBcleverCbrilliantDingenious 17.According to official statistics, retail sales in China rose 10% and 12.2% in the first and the second quarter _ this year

10、.AaccordinglyBcorrespondinglyCrespectivelyDindividually 18.I was _ study French yesterday, but I changed my mind.Ato be startingBto startCto have startedDto have been starting 19.People under stress have performed _ feats of strength, like lifting an automobile off an accident victim.AspecificBextra

11、ordinaryCabruptDabnormal 20.Well _ you as soon as we have any further information.AnotifyBsignifyCcommunicateDimpart 21.Can you ride a horse No, I never had the chance _.Afor learningBfor learning howChow to learn itDto learn how 22.Mary will not be able to come to the birthday party as she is _ wit

12、h a cold.Alaid outBlaid upClaid byDlaid down 23._ he daydreamed, Peter saw figures in the sky.AUntilBSinceCWhileDDuring 24.The American professor came to realize that he had underestimated the _ of most of the Chinese students.AmagnitudeBgradientCpotentialDfirmness 25.If we fail to act now, said Tom

13、, Well find ourselves _ in action later on.Apaid backBpaid forCpaid upDpaid off 26.Clothing made of plastic fibres has certain advantages over _ made of natural fibres like cotton, wool, or silk.AoneBthe oneCthatDwhat 27.That fellow _ at long distance running.AexcelsBexceedsCsurpassesDovertakes 28.N

14、owhere in nature is aluminum found free, owing to its always _ with other elements, most commonly with oxygen.Abeing combinedBhaving combinedCto combineDcombined 29.I am quite sure that I can _ Michael into letting us use his car tomorrow.AspeakBtalkCtellDsay 30.This book has been in the works so lo

15、ng that I have lost _ of most of the sources found for me by the staff of the library.AtraceBtrailCtrackDtouch 31.To their credit the Department of Energy _ these ideas and funded a detailed study.Atook overBtook onCtook upDtook to 32.You _ that letter to James. However, you didnt.Aought to writeBou

16、ght to have writtenCshould writeDshould be writing 33.Once our chickens started laying eggs, we had such a _ of eggs that we were giving many away to our neighbors.AoutputBsurplusCproductionDplenty 34.Its not fair that you come home after a bad day at work and _ your wife and children.Atake it out o

17、nBtake out it onCtake out onDtake on it with 35.As I regard it, you can widen the _ of these improvements through your active participation.AvolumeBdimensionCmagnitudeDscope 36.The store was _ people shopping for household wares.Aoccupied byBseized byCinvaded byDjammed with 37.Jeans, originally desi

18、gned by Levi Strauss, _.Ahave become a symbol of the fashionable classBhave come to symbolize changes in social attitudeCare suitable wear for rough work onlyDare no longer so popular as they used to be 38.The last two sentences imply that _.Astatesmen in the world are less competent than jeansBthe

19、inhabitants of the world should speak the same languageCstatesmen have failed to reach agreement on many major issues of the worldDjeans will help statesmen to reach agreement on some world issues 39.The author is of the opinion that _.Ajeans are likely to be a short-lived fashionBjeans are popular

20、only in the United StatesCjeans are likely to be popular for a long time to comeDjeans are no longer fashionable 40.Which of the following would NOT cause a sea cucumber to release its internal organs into the waterAA touch.BFood.CUnusually warm waterDPollution. 41.According to the passage, why is t

21、he shape of sea cucumbers importantAh helps them to digest their food.BIt helps them to protect themselves from danger.CIt makes it easier for them to move through the mud.DIt makes them attractive to fish. 42.What can be inferred about the defence mechanisms of the sea cucumberAThey are very sensit

22、ive to surrounding stimuli.BThey are almost useless.CThey require group cooperation.DThey are similar to those of most sea creatures. 43.The fourth paragraph of the passage primarily discusses _.Athe reproduction of sea cucumbersBthe food sources of sea cucumbersCthe eating habits of sea cucumbersDt

23、hreats to sea cucumbers existence 44.The attempt to help blind people to see with sound _.Awas similar to the sound location system of the batsBled to a product that sent out sound waves of about 20,000 cycles per secondCwas experimented on a submarineDturned out to be a failure 45.The returning ech

24、oes the receiver picks up are _.Adearly audible bleepsBinaudible to human earsCimmediately passed on to headphonesDfiltered through the transmitter 46.How do blind children play soccerAThey listen to the sound of the ball bouncing.BThey ask an adult to guide them.CThey hold a bell in their hands.DTh

25、ey put a bell inside the ball. 47.Which of the following is NOT true about the ultrasonic torchAIt enables the blind to live a more normal life.BIt is mainly used to scan the area in front of the operator for obstacles.CFast succession of bleeps indicates that the obstacle is near.DIts sound can war

26、n other people of the blind mans approach. 48.According to the passage, the number of wood-burning stove sold for home use _.Awent up fivefold over a six-year periodBrose to seven million during the seventiesCmultiplied thirty-five times between 1973 and the beginning of 1981Dincreased by 6,000,000

27、over an eight-year period 49.The passage states that _.Amany Americans have switched from hydrocarbon-based fuels to wood because the price of the latter has risenBsome wood-burning stoves cost up to one hundred times more than othersCcatalytic combustors increase the amount of pollution caused by w

28、ood burning stovesDagitators are cheaper addition to wood-burning stoves than catalytic combustors 50.Which of the following statements is NOT trueAWood-bunting stoves are safer and more efficient than they used to be.BNo factories exist for the purpose of producing dirty wood chips.CBoth catalytic combustors and wood agitators save money in the long run.DWood-burning stoves with catalytic combustors cost between $ 100 and $ 200.第18页 共18页第 18 页 共 18 页第 18 页 共 18 页第 18 页 共 18 页第 18 页 共 18 页第 18 页 共 18 页第 18 页 共 18 页第 18 页 共 18 页第 18 页 共 18 页第 18 页 共 18 页第 18 页 共 18 页