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1、广东省高考英语一轮复习单元测试:Unit5(新人教版选修7)Unit5Travellingabroad能力演练一、语法填空IfthepopulationoftheEarthkeepson1(increase)atitspresentrate,therewill2(event)notbeenoughresourceslefttosupportlifeontheplanet.Bythemiddleofthe21stcentury,ifpresenttrendscontinue,we3(use)upalltheoiltha
2、tdriveourcars,forexample.Evenifscientistsdevelopnewwaysoffeedingthehumanrace,thecrowdedconditionsonEarthwillmakeit4(necessity)forustolookforsomewhereelse.But5oftheotherplanetsinoursolarsystemarecapableofsupportinglifeatpresent.Onepossiblesolutiontotheproblem,6,
3、hasrecentlybeensuggestedbyanAmericanscientist,ProfessorCarlSagan.Saganbelievesthat7theEarth,sresourcesarecompletely8(exhaust),itwillbepossibletochangetheatmosphereofVenusand9createanewworldalmostaslargeasEarthitself.Somethingisdifficult.Venusismuchhotterthanthe
4、Earth.10,thereisonlyatinyamountofwaterthere.二、完形填空阅读下面短文,掌握其大意,然后从1~15各题所给的四个选项(A、B、C和D)中,选出最佳选项。WhatanexcitingdayitwasforJenniferandValerie!TheyhadbeenfriendssinceGradeThreeandhad1manyoftheirhighschoolexperience.Nowtheyweredrivingtogethertotheirfinalhighscho
5、olevent.Todaywas2dayatLamarHighSchool.3theywereclosefriends,theyweredifferentinmanyways.Jenniferwasafairly4studentwhileValeriedidjustenoughtogetbyandwasmainly5inagoodsociallife.“Isn,tit6thatwereallfinished?”saidValerie.“I,mreallylookingforwardtohavingagoodt
6、imethissummer.”“7benice,”Jenniferreplied,“I,mafraidI,mgoingtohavetoworkmostofthesummertohelppayformycollegeexpenses.”Jennifer,sparentshadonlyasmall8andshehadmadeuphermindtohaveanoccupationinwhichshecouldaffordallthethingsher9couldnot.Valerie,10,camefromafa
7、irlywell-to-dofamily.Shehadlittledesiretoworkhardfor11shehadalwaystakenforgranted.“Ireallydontwanttogotocollegeforawhile,”she12.“MyunclerunsarestaurantintheBahamasandhehas13metospendayearthereasawaitress.Thatshouldgivemeplentyof14forthebeach.”“Itseems15l
8、lreallybegoingdifferentwaysnow,”thoughtJennifer.1.A.learnedB.obtainedC.rememberedD.shared2.A.examB.sportsC.graduationD.working3.A.IfB.BecauseC.AlthoughD.When4.A.d