2017年6月大学英语四级阅读练习及答案(十八)思维导图

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2017年6月大学英语四级阅读练习及答案(十八)思维导图

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　　By 1970, according to a World Wildlife Fund report, only about 4,500 tigers survived throughout the world-half of them in India. Mr. Foresters, who followed and counted tiger foot

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By1970,accordingtoaWorldWildlifeFundreport,onlyabout4,500tigerssurvivedthroughouttheworld-halfoftheminIndia.Mr.Foresters,whofollowedandcountedtigerfootprints,estimatedthatinMay1972onlyabout1,800tigersexistedinIndia.ProjectTigerSupportedbyW.W.F.wasimmediatelylaunched.Ninetigerreserves(保留地)werecreated,witharmedguardsprotectingthem.

TheprojectprovidedopportunitiesforresearchersfromIndiaandabroadtostudytigersinthereservesandgatherpreviouslyunavailableinformationabouttheirhabits.Studiesshowthatamaletigermaycontrolahuntingterritoryofbetween10and20squarekilometers,dependingonitsage,sizeandstrength.Theterritoryofmaleincludesthesmallerterritories(领地)ofthreeorfourtigresses.Atigermarkstheboundariesofitsterritoriesbysprayingurineandotherbodilyliquidsonbushes.Butittriestoavoidterritorialfights,beingguidedbythedistinctivebodysmellofothertigers.Tigersfighttodeathonlywhenatigressisdefendingheryoung,orwhenatigerisguardingatigressfromtheattentionsofothermales.

Thepopularimageofthetigeristhatofamercilessandunconquerablehunter.Butstudiesshowthatitcatchesonlyoneof20victimsittriestoattack.

FearshaverecentlydevelopedthatProjectTigerhasbeentoosuccessful.Ithasenabledthetigerpopulationtodouble(bymid-80S),butIndia"shumanpopulationhasalsogrownoutofcontrol.Currentlyitis750millionandlikelytobe900millionbytheendofthecentury.Landproblemisbecomingseriousandmanyruralpeoplefeelbitteraboutthefactthatsomerichforestsarereservedfortigers.Agrowingnumberofattacksbytigersonmanhasaddedtothehostility.

练习题：

Choosecorrectanswerstothequestion:

1.TheultimateaimofProjectTigeristo_____.

A.studythegrowthrateoftigers

B.protecttigersfrombeingkilled

C.promotethebreedingofyoungtigers

D.analyzethebehavioralpatternsoftigers

2.Studieshaveshownthat______.

A.atigressneverattacksuntilattacked

B.thetigressisnotasfierceasthetigers

C.atigerusuallyfightsanothertigertodefenditsownterritory

D.thetigerisnotanefficienthunterasiscommonlydescribed

3.Accordingtothepassage,atiger"sterritory_____.

A.remainsunchanged

B.isoftendefendedbytigresses

C.expandsasthetigergrowsup

D.isthecauseofmostfights

4.SomepeopleareafraidthatProjectTiger_____.

A.hasbeencarriedtoofar

B.hasnotreceivedenoughattention

C.hasfailedtoachieveitsgoal

D.isnotworththemoneyspentonit

5.Theauthorseems_____.

A.tobeenthusiasticaboutProjectTiger

B.tohaveamatter-of-factattitudetowardsProjectTiger

C.tohaveahostileattitudetowardsProjectTiger

D.tobesatisfiedwithProjectTiger

1.[D]根据文章第1段，老虎被捕杀是其数量剧减的根本原因，因此使老虎免于被杀是野生动物保护基金会的最终目的，故选D。

2.[B]第3段第2句说，但研究表明老虎捕捉猎物的成功率仅为1/20，B与之相符。第2段说到老虎一般会避免领土之争，C与之不符，故排除;A、D在原文中并未提及均可排除。

3.[A]第2段第2句提到，研究表明，一头雄老虎依年龄、体型及力量可以控制10至20公里的狩猎领地，随着老虎的长大，其体型及力量都在增大，其占领的狩猎领地的面积自然也就增大，故A正确。

4.[C]文章第4段首句说,许多人近来开始担心老虎项目过于成功，C项是该句的同义替换，故为答案。

5.[B]纵观全文，作者对于老虎保护项目没有加入个人的主观色彩，他持的是一种客观的态度，故选B。

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