四级阅读理解练习及答案解析

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1、四级阅读理解练习（答案加解析）第62篇Africanelephantshavebeenslaughteredatalarmingrateoverthepastdecade,largelybecausetheyaretheprimarysourceoftheworld'sivory.Theirpopulationhasbeendwindledfrom1.3millionin1979tojust625,000today,andtheratAfricanelephantshavebeenslaughter

2、edatalarmingrateoverthepastdecade,largelybecausetheyaretheprimarysourceoftheworld'sivory.Theirpopulationhasbeendwindledfrom1.3millionin1979tojust625,000today,andtherateofkillinghasbeenacceleratinginrecentyearsbecausemanyoftheolder,biggertuskedanimalsha

3、vealreadybeendestroyed."Thepoachersnowmustkilltimesasmanyelephantstogetthesamequantityofivory,"explainedCurtisBohlen,SeniorvicepresidentoftheWorldWildlifeFund.   Thoughitsrecordontheenvironmenthasbeenspottysofar,thegovernmentlastweektooktheleadinamajo

4、rconservationissuebyimposingabanonivoryimportsintotheUS.Themovecamejustfourdaysafteraconsortiumofconservationgroups,includingtheWorldWildlifeFundandWildlifeConservationInternational,calledforthatkindofaction,anditmadetheUSthefirstnationtoforbidimportso

5、fbothrawandfinishedivory.Theban,saysBohlen,sendsaveryclearmessagetotheivorypoachersthatthegameisover.   InthepastAfricannationshaveresistedanivoryban,butincreasinglytheyrealisedthatthedecimationoftheelephantherdsposesaseriousthreattotheirtouristbusines

6、s.LastmonthTanzaniaandseveralotherAfricancountriescalledforanamendmenttothe102nationConventiononInternationalTradeinEndangeredSpeciesthatwouldmaketheivorytradeillegalworldwide.TheamendmentisexpectedtobeapprovedatanOctobermeetinginGenevaandtogointoeffe

7、ctnextJanuary.Butbetweennowandthen,conversationistscontend,poachersmaygoonarampage,killingelephantswholesale,sonationsshouldunilaterallyforbidimportsrightaway.TheUSgovernmentbroughtthatargument,andbyweek'sendthetwelvenationEuropeanCommunityhadfollowed

8、withitsownban.1.Whichofthefollowingisthebesttitleforthepassage?A)AfricanElephantsandtheIvoryTrade.B)ABidtoSavetheElephant.C)ThePoachers.D)ElephantsInDanger.2.Accordingtothepassage,"dwindle"means____.A)decreaseB)enlargeC)weakenD)elimilat