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1、2019-2020年高考英语一轮复习Unit5Thepowerofnature高考题新人教版选修【高考探究】＂自然与环境＂是高考英语热点话题，通常以阅读理解、完形填空和书面表达的形式考查。例如：xx年新课标全国卷I阅读理解D篇；xx年北京卷阅读理解；I.阅读理解Passage1（xx·新课标全国卷Ⅰ）体裁话题词数难度建议时间说明文简单易行的太阳能蒸馏器316★★★☆☆6分钟Abuild-it-yourselfsolarstill（蒸馏器）isoneofthebestwaystoobtaindrinkingwaterinareaswheretheliqui
2、disnotreadilyavailable.DevelopedbytwodoctorsintheU.S.DepartmentofAgriculture,it’sanexcellentwatercollector.Unfortunately,youmustcarrythenecessaryequipmentwithyou,sinceit’sallbutimpossibletofindnaturalsubstitutes.Theonlyponentsrequired,though,area5＇5＇sheetofclearorslightlymilkypla
3、stic,sixfeetofplastictube,andacontainer—perhapsjustadrinkingcup—tocatchthewater.Thesepiecescanbefoldedintoaneatlittlepackandfastenedonyourbelt.Toconstructaworkingstill,useasharpstickorrocktodigaholefourfeetacrossandthreefeetdeep.Trytomaketheholeinadampareatoincreasethewatercatche
4、r’sproductivity.Placeyourcupinthedeepestpartofthehole.Thenlaythetubeinplacesothatoneendrestsallthewayinthecupandtherestofthelinerunsup—andout—thesideofthehole.Next,covertheholewiththeplasticsheet,securingtheedgesoftheplasticwithdirtandweightingthesheet’scenterdownwitharock.Thepla
5、sticshouldnowformacone(圆锥体)with45-degree-angledsides.Thelowpointofthesheetmustbecentereddirectlyover,andnomorethanthreeinchesabove,thecup.Thesolarstillworksbycreatingagreenhouseundertheplastic.Groundwaterevaporates(蒸发)andcollectsonthesheetuntilsmalldropsofwaterform,rundownthemate
6、rialandfalloffintothecup.Whenthecontainerisfull,youcansucktherefreshmentoutthroughthetube,andwon’thavetobreakdownthestilleverytimeyouneedadrink.32.Whatdoweknowaboutthesolarstillequipmentfromthefirstparagraph?A.It’sdelicate.B.It’sexpensive.C.It’splex.D.It’sportable.33.Whatdoestheu
7、nderlinedphrase“thewatercatcher”inparagraph2referto?A.Thetube.B.Thestill.C.Thehole.D.Thecup.34.What’sthelaststepofconstructingaworkingsolarstill?A.Digaholeofacertainsize.B.Putthecupinplace.C.Weightthesheet’scenterdown.D.Covertheholewiththeplasticsheet.35.Whenasolarstillworks,drop
8、sofwatereintothecupfrom.A.theplastictube
