2019-2020年高三英语一轮复习题组层级快练7Unit2TheOlympicGames新人教版必修

2019-2020年高三英语一轮复习题组层级快练7Unit2TheOlympicGames新人教版必修

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时间:2019-11-10

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1、2019-2020年高三英语一轮复习题组层级快练7Unit2TheOlympicGames新人教版必修Ⅰ.阅读理解(xx·广州市一模)Dujiangyanistheoldestman-madewatersystemintheworld,andawonderinthedevelopmentofChinesescience.Builtover2,200yearsagoinwhatisnowSichuanProvinceinSouthwestChina,thisamazingengineeringachievementisstilluse

2、dtodaytoirrigateover6,000squarekilometresoffarmland,takeawayfloodwaterandprovidewaterfor50citiesintheprovince.Inancienttimes,theregioninwhichDujiangyannowstandssufferedfromregularfloodscausedbyoverflowfromtheMinjiangRiver.Tohelpthevictimsoftheflooding,LiBing,theregion^

3、governor,togetherwithhisson,decidedtofindasolution.TheystudiedtheproblemanddiscoveredthattherivermostoftenoverflowedwhenwintersnowatthetopofthenearbyMountYuleibegantomeltastheweatherwarmed.Thesimplestfixwastobuildadam,butthiswouldhaveruinedtheMinjiangRiver.SoinsteadLid

4、esignedaseriesofchannelsbuiltatdifferentlevelsalongMountYuleithatwouldtakeawaythefloodwaterwhileleavingtheriverflowingnaturally.Betterstill,theextrawatercouldbedirectedtothedryChengduPlain,makingitsuitableforfarming.CuttingthechannelsthroughthehardrockofMountYuleiwasar

5、emarkableacplishmentasitwasdonelongbeforetheinventiongunpowderandexplosives.LiBingfoundanothersolution.Heusedabinationoffireandwatertoheatandcooltherocksuntiltheycrackedandcouldberemoved.Aftereightyearsofwork,the20-metre-widecanalshadbeencarvedthroughthemountain.Onceth

6、esystemwasfinished,nomorefloodsoccurredandthepeoplewereabletolivepeacefullyandaffluently.Today,Dujiangyanisadmiredbyscientistsfromaroundtheworldbecauseofonefeature.Unlikemoderndamswherethewaterisblockedwithahugewall,DujiangyanstillletswaterflowthroughtheMinjiangRiverna

7、turally,enablingecosystemsandfishpopulationstoexistinharmony.1.WhatarethebenefitsofDujiangyanaccordingtothefirstparagraph?A.Reducingfloodingandwateringfarmland.B.Protectingthemountainandreducingflooding.C.Wateringfarmlandandimprovingwaterquality.D.Dryingtheriverandsupp

8、lyingcitieswithwater.2.WhatwasthemaincauseoftheMinjiangRiver'sflooding?A.Heavyrains.    B.Meltingsnow.C.Lowriverbanks

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