2002年四级英语考试最新模拟试题(五)

《2002年四级英语考试最新模拟试题(五)》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、2002年四级英语考试最新模拟试题(五)PartIIReadingComprehension(35minutes)Directions:Therearefourreadingpassagesinthispart.Eachpassageisfollowedbysomequestions.ForeachquestiontherearefoursuggestedanswersmarkedA,B,CandD.YoushouldchoosetheOnebestanswerandblackenthecorrespondingletteron

2、theANSWERSHEETwithapencil.Passage1Itwasoncethoughtthatairpollutionaffectedonlytheareaimmediatelyaroundlargecitieswithfactoriesand/orheavyautomobiletraffic.Today,weknowthatalthoughthesearetheareaswiththeworstairpollution,theproblemisliterallyworldwide.Onseveraloccas

3、ionsoverthepastdecade,aheavycloudofofairpollutionhascoveredtheentireeasternhalfoftheUnitedStatesandledtohealthwarningseveninruralareasawayfromanymajorconcentrationofmanufacturingandautomobiletraffic.Infact,theveryclimateoftheentireearthmaybeaffectedbyairpollution.Som

4、escientistsfeelthattheincreasingconcentrationofcarbondioxideintheairresultingfromtheburningoffossilfuels(coalandoil)iscreatinga“greenhouseeffect"-holdinginheatreflectedfromtheearthandraisingtheworld'saveragetemperature.Ifthisviewiscorrectandtheworld'stemperatureisrai

5、sedonlyafewdegrees,muchofthepolaricecapwillmeltandcitiessuchasNewYork,Boston,Miami,andNewOrleanswillbeunderwater.Anotherview,lesswidelyheld,isthatincreasingparticulatematterintheatmosphereisblockingsumlightandloweringtheearth'stemperature-aresultthatwouldbeequallyd

6、isastrous.Adropofjustafewdegreescouldcreatesomethingclosetonewiceageandwouldmakeagriculturedifficultorimpossibleinmanyofourtopfarmingareas.Atpresentwedonotknowforsurethateitheroftheseconditionswillhapen(thoughonerecentgovernmentreportpreparedbyexpertsinthefieldconclu

7、dedthatthegreenhouseeffectisverylikely).Perhaps,ifweareverylucky,thetwotendencieswilloffseteachotherandtheworld'stemperaturewillstayaboutthesameasitisnow.1.Aspointedoutatthebeginningofthepassage,peopleusedtothinkthatairpollution.A.causedwidespreaddamageinthecountrysi

8、deB.affectedtheentireeasternhalfoftheUnitedStatesC.haddamagingeffectsonhealthD.existedmerelyinurbanandindustrialareas2.Asfarasthegr