2019中考英语九全unit9_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,orsaltwater.Manca

2、nonlydrinkandusetheother3percent－thefreshwaterfromrivers,lakes,underground,andothersources（资源）.Andwecannotevenuseallofthat,becausesomeofitisintheformoficebergsandglaciers（冰川）.Evenworse,someofithasbeenpolluted.   However,asthingsstandtoday,thissmallamountoffreshwate

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

4、ingit.   Todayinmostlargecities,waterisusedonlyonceandthensentoutintoasewersystem（下水道）.Fromthereitreturnstotheseaorrunsintoundergroundstoragetanks.Butitispossibletopipeusedwatertoapurifying（净化）plant.Thereitcanbetreatedwithchemicalssothatitcanbeusedagain,justasifitw

5、erefreshfromaspring.   Butevenifeverylargecitypurifiedandreuseditswater,westillwouldnothaveenough.Allwe’dhavetodotomakeuseofthevastreserves（贮备）ofseawaterintheworldistoremovethesalt.   Ifwetakethesestepswe’llbeinnodangerofdryingup. 1.Theworldisthirstyforwaterbecause

6、wecanonlyuse_________percentofthewatercoveringthesurfaceoftheearth.   A.3           B.morethan3       C.lessthan3      D.97 2.WhichofthefollowingstatementsisNottrue?   A.Asthingsremainunchanging,thissmallamountoffreshwaterisstillenoughforus.   B.Ourneedforwaterisbe

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

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