Unit24SocietyPeriodTwoLesson2Utopia课时精练（北师大版选修8，广东专用）时间：30分钟Ⅰ.语法填空(共10小题；每小题1.5分，满分15分)阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。Havingheardwolves__1__(howl)intheforest，Lalaacceleratedherwalkupthepathtothecaves__2__(fear)thattheremightbewildbeasts__3__(lie)inwaitforher.Shehadnomanwithhisspeartoprotecther.Shehadalmostreachedher__4__whenadelicioussmellarrestedherprogressandshestopped.Sothemenhadbroughthomethemeat__5__thefeast！Thesmellofcookingmeatfilledtheair__6__(surround)her，andhersensesbecamedizzywith__7__(hungry)．Shecouldseehermotherandtheolderchildren__8__(prepare)thedeerandpigmeatoverthefire.Herauntsweremakingclotheswithanimalskins.Abruptlyshesatdown，only__9__(scoop)upbyherlaughing，shoutingsister，Luna.Lalasmiled__10__relief.Itwasgoodtohaveherfamilyaroundher.答案1.howling2.fearing3.lying4.destination5.for6.surrounding7.hunger8.preparing9.tobescooped10.withⅡ.阅读理解(共10小题；每小题2分，满分20分)ATheholeintheEarth'sozonelayer(臭氧层)hasuntilnowprotectedAntarcticfromtheworsteffectsofglobalwarming.Butscientistshavewarnedthatastheholeclosesupinthenextfewdecades，temperaturesonthecontinentcouldrisebyaround3℃onaverage，withmeltingicecontributingtoaglobalsealevelincreaseofupto1.4metres.InthepastdecadesthewesternAntarctichasseenrapidicelosstheworldhaswarmed，buttheotherpartsofthecontinenthave，paradoxically，beencooling，resultingina10%iceincreaseintheseasaroundtheregion.ThisisbecausetheholeintheozonelayerhasincreasedcoldwindsinAntarctic，makingmuchofthecontinentsurfacecolderthanusual.Butnowthatthegasesthatcausetheozoneholehavebeenbanned，scientistsexpecttheholetorepairitselfwithinthenext50to60years.BythenthecoolingeffectwillhavefadedoutandtheAntarcticwillfacethefullimpactofglobalwarming.Thismeansanincreaseinaverageairtemperaturesofaround3℃andareductioninseaicebyaroundonethird.Thebiggestthreattothecontinentcomesfromwarmingseas.RobertJohnson，ascientistwhomonitorsAntarcticicesheets，said，“TheicesheetsinAntarcticarehundredsofmetresthick.Butoncewarmoceanwatersstartflowingunderneath，theicewillbeginthinningandcouldbreakupveryquickly.”Thinningicesheetscauseicetobreakawayfromthecontinentandtomeltevenfaster.EscapingicefromwesternAntarctichasalreadyresultedina10%riseinglobalsealevelinrecentdecades.Johnsonbelievesthatinternationalactiontoreduceglobalwarmingisrequiredimmediatelyoritmaybetoolate.“Everythingisconnected—AntarcticmaybealongwayawaybutitisanimportantpartoftheEarth'ssystem，”saidJohnson.“Itcontains90%oftheworld'sice，70%oftheworld'sfreshwaterandthatisenough，ifitmeltscompletely，toraisesealevelsby63metres.”Eveninaworsecasesituationscientistsdon'texpecttheicetoentirelydisappear，butpredictthat，becauseofthemeltingicesheets，averagesealevelrisewillbearound1.4metreshigherbytheendofthecentury.【解题导语】南极大陆正在受着许多威胁：来自臭氧层空洞的，来自日渐变暖的大海的……我们必须阻止全球变暖，否则可能再不能挽救南极洲了。11．Theunderlinedword“paradoxically”(inParagraph2)mostprobablymeans“________”．A．rapidlyB．approximatelyC．contradictorilyD．apparently解析词义猜测题。答案C12．WhatistheeffectoftheholeintheozonelayeronAntarctic?A．Itiscausingtheicetomeltfaster.B．Itismakingmuchofthecontinentcolder.C．Itismakingtheeffectsofglobalwarminginregionworse.D...
