2019中考英语 九全 Unit 9-10阅读+重点单词回扣练习 人教新目标版

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1、2019中考英语人教版九全Unit9—10阅读+重点单词回扣练习一、阅读理解。ATheWorld’sWaterShortage   Theworldisnotonlyhungry,butitisalsothirstyforwater.Thismayseemstrangetoyou,sincenearly70percent（百分比）oftheearth’ssurfaceiscoveredwithwater.Butabout97percentofthishugeamountisseawater,orsaltw

2、ater.Mancanonlydrinkandusetheother3percent－thefreshwaterfromrivers,lakes,underground,andothersources（资源）.Andwecannotevenuseallofthat,becausesomeofitisintheformoficebergsandglaciers（冰川）.Evenworse,someofithasbeenpolluted.   However,asthingsstandtoday,thissm

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

4、irststepsistodevelopwaysofreusingit.   Todayinmostlargecities,waterisusedonlyonceandthensentoutintoasewersystem（下水道）.Fromthereitreturnstotheseaorrunsintoundergroundstoragetanks.Butitispossibletopipeusedwatertoapurifying（净化）plant.Thereitcanbetreatedwithche

5、micalssothatitcanbeusedagain,justasifitwerefreshfromaspring.   Butevenifeverylargecitypurifiedandreuseditswater,westillwouldnothaveenough.Allwe’dhavetodotomakeuseofthevastreserves（贮备）ofseawaterintheworldistoremovethesalt.   Ifwetakethesestepswe’llbeinnoda

6、ngerofdryingup. 1.Theworldisthirstyforwaterbecausewecanonlyuse_________percentofthewatercoveringthesurfaceoftheearth.   A.3           B.morethan3       C.lessthan3      D.97 2.WhichofthefollowingstatementsisNottrue?   A.Asthingsremainunchanging,thissmalla

7、mountoffreshwaterisstillenoughforus.   B.Ourneedforwaterisbecominglargerandlarger.   C.Therewillbenowatershortageinthefuture.   D.Weshouldtakestepstodealwiththewatershortageproblem. 3.Toreusewater,weshould__________.   A.treatitwithchemicals   B.useitonly

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