2019年中考英语二轮复习阅读理解习练二.docx

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1、2019年中考英语阅读理解习练二【实战训练】A（2019中考科普环保类选练）TheWorld’sWaterShortage   Theworldisnotonlyhungry,butitisalsothirstyforwater.Thismayseemstrangetoyou,sincenearly70percent（百分比）oftheearth’ssurfaceiscoveredwithwater.Butabout97percentofthishugeamountisseawater,orsaltwater.Ma

2、ncanonlydrinkandusetheother3percent－thefreshwaterfromrivers,lakes,underground,andothersources（资源）.Andwecannotevenuseallofthat,becausesomeofitisintheformoficebergsandglaciers（冰川）.Evenworse,someofithasbeenpolluted.   However,asthingsstandtoday,thissmallamountoff

3、reshwaterisstillenoughforus.Butourneedforwaterisincreasing（增加）rapidly－almostdaybyday.Onlyifwetakestepstodealwiththisproblemnowcanweavoid（避免）asevere（严重的）worldwidewatershortagelateron.   Weallhavetolearnhowtostopwastingourvaluablewater.Oneofthefirststepsistodeve

4、lopwaysofreusingit.   Todayinmostlargecities,waterisusedonlyonceandthensentoutintoasewersystem（下水道）.Fromthereitreturnstotheseaorrunsintoundergroundstoragetanks.Butitispossibletopipeusedwatertoapurifying（净化）plant.Thereitcanbetreatedwithchemicalssothatitcanbeuse

5、dagain,justasifitwerefreshfromaspring.   Butevenifeverylargecitypurifiedandreuseditswater,westillwouldnothaveenough.Allwe’dhavetodotomakeuseofthevastreserves（贮备）ofseawaterintheworldistoremovethesalt.   Ifwetakethesestepswe’llbeinnodangerofdryingup. 1.Theworldi

6、sthirstyforwaterbecausewecanonlyuse_________percentofthewatercoveringthesurfaceoftheearth.   A.3           B.morethan3       C.lessthan3      D.97 2.WhichofthefollowingstatementsisNottrue?   A.Asthingsremainunchanging,thissmallamountoffreshwaterisstillenoughfo

7、rus.   B.Ourneedforwaterisbecominglargerandlarger.   C.Therewillbenowatershortageinthefuture.   D.Weshouldtakestepstodealwiththewatershortageproblem. 3.Toreusewater,weshould__________.   A.treatitwithchemicals   B.useitonlyonce   C.senditoutintoasewersystem   

8、D.makeitflowintoundergroundtanks 4.Inordertohaveenoughwater,weshouldalsomakeuseof_________.   A.icebergsandglaciers   B.seawater   C.riversandlake   D.undergroundwater 5.Inthepassa