Unit 8 单元综合检测卷（解析版）

答案第=page11页，共=sectionpages22页Unit8单元测试卷（考试时间：90分钟总分：90分）一、单项选择（共10小题，每小题1分，满分10分）1．Wethinkitcan________theenvironmenttopourwastewaterintotheriver.A．pollute B．reuseC．recycle D．divide【答案】A【详解】句意：我们认为把废水排入河里会污染环境。考查动词辨析。pollute污染；reuse再次使用，重复使用；recycle回收利用，再利用；divide（使）分开。根据“itcan...theenvironmenttopourwastewaterintotheriver”可知，把废水排入河里会污染环境，故选A。2．ThedocumentaryFortheSakeofPeace（《为了和平》）broughttheWartoResistUSAggressionandAidKorea（抗美援朝战争）________onscreen.A．living B．lively C．alive D．live【答案】C【详解】句意：纪录片《为了和平》将抗美援朝战争鲜活地呈现在银幕上。考查形容词辨析。living活着的，指没有死，可修饰人，也可修饰物；lively活泼的，精力充沛的；alive活着的，着重于状态；live活的，真的，只修饰物。bringsthaliveonscreen意为“使某物鲜活地呈现在屏幕上”，固定搭配。故选C。3．Ican’tbuythebooknow.I________themoneyinmypocketyesterday.A．ranout B．tookoutof C．ranoutof D．lookedoutof【答案】C【详解】句意：我现在不能买这本书。昨天我口袋里的钱用完了。考查动词短语。runout用完，不及物短语；takeoutof取出；runoutof用完，及物短语；lookoutof从……往外看。根据“I...themoney”可知钱用光了，且空后有宾语，用runoutof。故选C。4．Myparentdoesn’t________me________playcomputergamesduringonlineclasses.A．tell;to B．ask;to C．allow;to D．push;to【答案】C【详解】句意：我父母不允许我在网上上课的时候玩电脑游戏。考查动词辨析和不定式。tell告诉；ask要求；allow允许；push推。根据后文“playcomputergamesduringonlineclasses”可知，此处表示不允许，应用动词allow，allowsbtodosth.允许某人做某事，故选C。5．—Accordingtoarecentsurvey,manystudentshavepooreyesight.—Inmyopinion,readingonthescreentoooftenisthe__________ofhavingpooreyesight.A．cost B．result C．cause D．mess【答案】C【详解】句意：——根据最近的一项调查，许多学生视力不好。——在我看来，太频繁地在屏幕上阅读是视力差的原因。考查名词辨析。cost成本；result结果；cause原因；mess脏乱。根据“readingonthescreentoooftenisthe…ofhavingpooreyesight”可知，分析视力不好的原因，故选C。6．—Whenshallweseethefilm,onSaturdayorSunday?—EitherisOK.Itmakesno________tome.A．chance B．mistake C．difference D．decision【答案】C【详解】句意：——我们什么时候去看电影，周六还是周日？——哪天都可以。这对我来说没什么区别。考查名词辨析。chance机会；mistake错误；difference不同；decision决定。根据“EitherisOK”哪天都可以，可知两天没有区别，故要用difference，makenodifferenceto“对……没差别”。故选C。7．Whichofthefollowingisakindofnewenergy?A．Coal. B．Oil. C．Gas. D．Wind.【答案】D【详解】句意：下列哪一项是一种新能源？考查常识。Coal煤；Oil油；Gas气体；Wind风。结合实际可知风能是新能源，故选D。8．—Wouldyoulike________theenvironment?

—Yes,I’dliketo.A．helpprotect B．helpingprotect C．tohelpprotecting D．tohelpprotect【答案】D【详解】句意：——你愿意帮助保护环境吗？——是的，我很乐意。考查动词短语。wouldliketodosth“愿意做某事”，为固定短语，排除AB选项；helpdosth“帮助做某事”，也是固定短语。故选D。9．Peoplefullofknowledgecan________decidehowtodobetterforthesociety.A．simply B．finally C．quietly D．wisely【答案】D【详解】句意：知识丰富的人可以明智地决定如何为社会做得更好。考查副词辨析。simply简单地；finally彻底地；quietly安静地；wisely明智地。根据“Peoplefullofknowledge”可知知识丰富的人应该明智地做决定，故选D。10．Areportsaysthattheworld’snaturalgas________inthefuture.A．willberunout B．willuseup C．willrunout D．willbecleanedup【答案】C【详解】句意：一个报道说世界的天然气在未来将会耗尽。考查动词短语辨析。runout不及物动词短语，耗尽；useup及物动词短语，用光；cleanup打扫干净。主语是“naturalgas”，可推知空格处是要表示“耗尽”，排除D；runout不及物动词短语，无被动语态，排除A；useup及物动词短语，此处需用被动语态，表示“naturalgas”被用完，排除B，故选C。二、补全对话（共5小题，每小题1分，满分5分）从下面选择最佳选项补全对话(有一项多余)W:Goodevening,Ted!Tellourlistenerswhatyoudo,please.M:Goodevening!IhelpcollectrubbishalongtheQuRiverwithothermembersinourvolunteerteam.W:That’sgreat!____11____M:Asyousee,theQuRiverisourmotherriver.Itprovidesuswithclearwater.____12____W:Iagreewithyou.____13____M:Um…10girlsand15boys.W:Whendoyoudothiswork?M:Weliveneartheriver.____14____Whenweseerubbish,wecollectit.W:____15____M:Yeah,Ithinkso.A．Incities,pollutionismainlyfromfactories.B．Howmanymembersdoyouhaveintheteam?C．It’sgoodforyourhealthandtheenvironment,isn’tit?D．Howdidyoucomeupwiththeidea?E．Wedon’twantittobepolluted.F．Afterdinnereveryevening,wetakealongwalkalongthesideoftheriver.【答案】11．D12．E13．B14．F15．C【导语】本文是一个访谈类的谈话，主要是关于Ted和他志愿者团队的其他成员一起在曲河上收集垃圾的相关内容。11．根据“That’sgreat!”和“Asyousee,theQuRiverisourmotherriver.Itprovidesuswithclearwater.”可知，下文解释的是做这个志愿活动的原因，结合选项，选项D“你是怎么想到这个主意的”符合语境，故选D。12．根据“theQuRiverisourmotherriver.Itprovidesuswithclearwater”和“Iagreewithyou”可知，这里是继续解释“在曲河沿岸收集垃圾”的原因，选项E“我们不想它被污染”符合语境。故选E。13．根据“10girlsand15boys”可知，空处是问人数，选项B“你的团队有多少成员”符合语境，故选B。14．根据“Whendoyoudothiswork”和“WeliveneartheriverWhenweseerubbish,wecollectit.”可知，空处是讲做这个工作的时间。选项F“每天晚饭后，我们沿着河边散步很长时间”符合语境，故选F。15．根据“Ithinkso.”可知，空处应是一种观点，且是对上文的总结，选项C“这对你的健康和环境都有好处，不是吗”符合语境，故选C。完形填空（共10小题，每小题1分，满分10分）Ican’trememberwhenIstartedcollectinglitter.ButitwaswhenIgottiredofseeinglitternearbyand__16__thatnooneelsewasgoingtopickitup.IlivenearaforestinOhio,America.Icanwalkthere__17__threeminutes.Iusedtolovegoingtheretoplaywithmydog.Butonedaytherewas__18__muchlittertherethatIbecameveryunhappy.Idecidedtocleanuptheforest.Iwantedtofeelhappy__19__thereagain.I__20__myfirsttriptocleanuptheforestthatafternoon.Itookabigbrownbagwithme.Tenminutesafterstartingtopickuplitter,mybagwas__21__!Therewerecans,bottles,brokenglassandnewspapersinit.Fromthenon,Iwenttotheforestfourtimesayeartopickuplitter.I’moftenthereforthreehours.Itmakesmefeel__22__todosomethingfortheenvironment.Aftereachtrip,IlookatallthelitterthatI’vefound.If__23__ofitisrecyclable,Iwillkeepit.Ican’tunderstand__24__peopledroplitter.ButIwillkeeppickingitupuntiltheystopdroppingit.IknowIamonlydoingasmallbitto__25__theearth,butIstillthinkitisimportant.16．A．believed B．realized C．insisted D．told17．A．before B．for C．with D．in18．A．such B．very C．so D．too19．A．going B．living C．working D．sleeping20．A．went B．made C．got D．tried21．A．new B．empty C．dirty D．full22．A．tired B．sad C．great D．interesting23．A．any B．none C．many D．much24．A．that B．why C．when D．how25．A．make B．mend C．support D．help【答案】16．B17．D18．C19．A20．B21．D22．C23．A24．B25．D【导语】本文讲述的是作者坚持捡拾垃圾的故事。作者发现树林里垃圾多，于是坚持捡拾，他认为自己只是为地球做了一点儿小贡献，但是他认为这很重要。16．句意：但当我厌倦了看到附近的垃圾，意识到没有人会去捡的时候。believed相信；realized意识到；insisted坚持；told告诉。根据“thatnooneelsewasgoingtopickitup.”及语境可知，应是意识到没有人捡垃圾的时候开始捡垃圾的，故选B。17．句意：我能在三分钟内走到那儿。before在……之前；for为了；with和……一起；in在……内。根据“walkthere...threeminutes”可知，应是三分钟内就能走到那里，故选D。18．句意：但是有一天，那里有很多垃圾，我变得非常不高兴。such如此，修饰名词；very非常；so如此，修饰形容词/副词；too也。根据“...muchlittertherethatIbecameveryunhappy”可知，此处用so修饰形容词much，构成so...that“如此……以至于……”结构。故选C。19．句意：我想再次去那里感到快乐。going去；living生活；working工作；sleeping睡觉。根据上文“Iusedtolovegoingtheretoplaywithmydog”可知，此处指再次去那里，故选A。20．句意：那天下午，我第一次去清理森林。went走；made从事；got得到；tried试图。根据“...myfirsttriptocleanuptheforest”可知，应是安排去打扫森林的第一次出行，故选B。21．句意：开始捡垃圾十分钟后，我的包就满了。new新的；empty空的；dirty脏的；full满的。根据“Therewerecans,bottles,brokenglassandnewspapersinit.”可知，应是包满了，故选D。22．句意：为环境做点什么让我感觉很棒。tired累的；sad伤心的；great好极的；interesting有趣的。根据“todosomethingfortheenvironment.”可知，作者为保护环境而捡垃圾应该使作者感到很好，故选C。23．句意：如果有任何东西是可回收的，我会保留它。any任何；none全无；many许多，修饰可数名词复数；much许多，修饰不可数名词。根据“Iwillkeepit.”可知，应是会保留任何可回收的东西，故选A。24．句意：我不明白人们为什么乱扔垃圾。that那；why为什么；when什么时候；how如何。根据“can’tunderstand...”可知，应是不明白人们扔垃圾的原因，用why引导宾语从句，故选B。25．句意：我知道我只做了一点点帮助地球，但我仍然认为这是重要的。make使得；mend修补；support支持；help帮助。上文讲述了作者捡垃圾清理森林的事情，这种行为是在帮助地球，故选D。四、阅读单选（共20小题，判断题每小题1分，选择题每小题2分，满分35分）AMarch12thisChina’sNationalTreePlantingDay.Onthisday,millionsofChinese,fromallwalks(行业)oflife,willputtheirworksathanddownforamomenttogreenuptheirhometowns.NowplantingtreesinthespringhasbecomeatraditionforChinese,markingthebeginningofchildren’sschooling,joininginarmy,orforaweddingorbirthdaycelebration.Ithasalsobeenusedbypeopleinmanyareasasawaytocommemorate(作为……的纪念)thedead.Forthoselivinginthebigcities,TreePlantingDayisagoodtimeforfamilyactivities.Theyoftentaketheplantingasaniceshorttourbacktonaturewiththeirfamilymembers.Aftertheirworktogether,theynotonlyharvestgreenerenvironmentbutalsomuchbetterfamilyrelations.Theywillbemoreinterestedinnaturearoundthem.Meanwhile,moreandmoreChineseandforeigntouriststakepartinthefestival.Thegovernmentasksthemtonameandnursethetreestheyhaveplanted.Itissointerestingforthemtofindthattheirplantshavegrowntobigtreesstillwiththeirnameboardonit.26．OnMarch12th,onlyteachersandstudentsplanttrees.27．Plantingatreecanmarkthebeginningofchildren’sschooling.28．TreePlantingDayisatimeforfamilyactivitiestogether.29．Familymemberscanhavebetterrelationshipafterplanting.30．Peoplecanplanttheirtrees,buttheycan’tnametheirtrees.【答案】26．F27．T28．T29．T30．F【导语】本文是一篇说明文，主要介绍了植树节的相关内容。26．细节理解题。根据“Onthisday,millionsofChinese,fromallwalks(行业)oflife,willputtheirworksathanddownforamomenttogreenuptheirhometowns.”可知植树节那天，数百万各行各业的人都会放下手头的工作，为家乡绿化，故填F。27．细节理解题。根据“NowplantingtreesinthespringhasbecomeatraditionforChinese,markingthebeginningofchildren’sschooling”可知植树节标志着孩子们开始上学，故填T。28．细节理解题。根据“Forthoselivinginthebigcities,TreePlantingDayisagoodtimeforfamilyactivities.”可知对于住在大城市的人来说，植树节是家庭活动的好时机。故填T。29．细节理解题。根据“Aftertheirworktogether,theynotonlyharvestgreenerenvironmentbutalsomuchbetterfamilyrelations.”可知植树节能够让家人收获更好的家庭关系。故填T。30．细节理解题。根据“Thegovernmentasksthemtonameandnursethetreestheyhaveplanted.”可知人们是可以给种植的树命名的。故填F。BTwothousandyearsago,Britainwascoveredbythickforests,hometomanyanimalslikewolves,bears,manydifferentkindsofdeerandlargewildcows,butnowtheynolongerliveintheUK.Therewerelessthanfourmillionpeople.Theylivedinsmallvillages.Woodenwallsprotectedthemfromtheanimalsoutside.Allthesehavechanged,ofcourse.Nowthepopulation(人口)oftheUKhasincreased(增加)toaboutseventymillion.Three-quartersofBritainiscoveredwithfields,townsorcities.Although(虽然)25percentoflandiscountryside,newmethodsoffarmingmeanthattherearefewerbirdsandsmallanimalslivinginfieldsthaneverbefore.Onlyafewcountriesintheworlddonothavealargewildanimalthateatsmeat.TheUKisoneofthem.Somepeoplewouldliketochangethings,however!SomeorganizationsandwriterssaythatBritainneedstobecomemorenaturalagain.Theysuggestbringingbackthetreesandanimalsthathavebeenlostandallowingthemtogrowfreely.Theycallthis“rewilding”.Noteveryoneagrees.Inthelasttwentyyears,overonemilliontreeswhichatfirstgrewinScotlandhavebeenplantedandthereareplansformore-butwildanimals?Somepeopleaskifwolveswillattacksheeporevenhumans.Theyarealsoangrythatrewildingmightmeananendtowalkinginthehillswhichsomanypeopleenjoy.SofartherearenowolvesorbearsinBritain’sforests-butsoontheremightbe!31．WhatwasthepopulationoftheUKtwothousandyearsago?A．About25million. B．About70million.C．Morethan61million. D．Notmorethanfourmillion.32．WhyaretherefewerbirdsandsmallanimalsinfieldsintheUK?A．Becausepeopledon’tplanttrees. B．Becausetherearemorelargewildanimals.C．Becausepollutionismuchworsethanbefore. D．Becausepeopleusenewmethodsoffarming.33．Whichparagraphgivesopinionsfrom“rewilding”supporters?A．Paragraph1. B．Paragraph2. C．Paragraph3. D．Paragraph4.34．Whataresomepeopleagainst?A．Livingclosertonature. B．Plantingmoreandmoretrees.C．Helpinglargewildanimalsreturn. D．Buildingmorevillagesandtowns.35．Whichisthebesttitleforthepassage?A．MakingBritainwildagain B．ProtectingwildanimalsC．AbriefintroductiontoBritain D．AvisittoBritain’swildlifereserves【答案】31．D32．D33．C34．C35．A【导语】本文主要讲述了几千年来英国本土环境的变化以及“重新荒野化”行动。31．细节理解题。根据“Therewerelessthanfourmillionpeople.”可知，人口不到400万，故选D。32．细节理解题。根据“newmethodsoffarmingmeanthattherearefewerbirdsandsmallanimalslivinginfieldsthaneverbefore”可知，因为人们使用新的耕作方法，所以鸟和小动物更少了，故选D。33．推理判断题。根据第三段“Theysuggestbringingbackthetreesandanimalsthathavebeenlostandallowingthemtogrowfreely.Theycallthis‘rewilding’.”可知，此段提到了“没有在英国生活过的大型野生动物返回并在野外生活”，所以是第三段给出了支持者的意见，故选C。34．推理判断题。根据最后一段中“Somepeopleaskifwolveswillattacksheeporevenhumans.Theyarealsoangrythatrewildingmightmeananendtowalkinginthehillswhichsomanypeopleenjoy.”可知，狼群攻击羊群甚至是人类，人们可能要结束在山上行走这项活动，这些都是大型野生动物回归以后可能造成的后果，所以一些人反对帮助大型野生动物回归，故选C。35．最佳标题题。通读全文可知，本文围绕“重新荒野化”展开描述，所以适合本文的标题是“MakingBritainwildagain”，故选A。CWhentheairispolluted,wecanwearmasks(口罩)toprotectourselves.Whataboutbeesandbutterflies?Theycan’twearmasks.NewsScientistmagazineshowedsomefindingsfromJamesRyallsandhisteamattheUniversityofReading,UK.Theirstudyfoundthatairpollutionisharmfultopollinators(传花粉者)—insectslikebeesandbutterflies.Theycan’tsmellflowersbecauseofthepollution.Pollinatorsareimportant,astheyspreadpollen(传播花粉)amongplantswithflowers.Thishelpstheflowersgrowintofruit.Withoutpollinators,farmscannotmakefood.Weallneedpollinators.Todotheirstudy,Ryalls’steambuilteightfarmareas.Then,theyputnitrogenoxide(氧化氮)andozone(臭氧)intosixoftheseareas.Theothertwoareashadnormal(正常的)air.“Theresultsweremuchmoreseriousthanwethought,”saidRyalls.Thelevelsofpollutioninthesixareaswerejustlikethoseofnormaltrafficontheroad.Insuchconditions,70percentinsectsdidn’tenterthesixareas.Iftheywerethere,theydidn’thangaround(活动).Andvisitstoflowersdroppedby90percent.Scientistssaidthatnitrogenoxideandozonecanbreakdownthescents(气味)offlowers.Thismakesithardforinsectstofindtheirfood.Maybethemostterriblethingisthatthelevelsofpollutionthataffect(影响)pollinatorsarelegal(合法的)intheUK.ShannonOlsson,ascientistinIndia,calledtheresults“important”becausetheyshowthat“safe”levelsofpollutionkeeppollinatorsaway.36．Whatmayhappentobeesandbutterfliesbecauseoftheairpollution?A．Theyhavenothingtoeat. B．Theygetlosteasily.C．Theycan’tsmellflowers. D．Theyalldieofit.37．WheredidRyalls’steamdotheirstudy?A．Inagarden. B．Infarmareas. C．Inmountainareas. D．Inahouse.38．Whathappenedtopollinatorsinthesixareaswithairpollution?A．Theyfoundfoodquickly. B．Theycouldnotfindeachother.C．Theyhungaroundmoreoften. D．Theyvisitedflowersless.39．Whatdoestheunderlinedphrase“breakdown”meaninthepassage?A．厌恶 B．变化 C．产生 D．分解40．WhatcanwelearnfromParagraph7?A．Pollinatorsonlyworkina“safe”environment.B．Even“safe”levelsofpollutionaffectpollinators.C．ThelawsintheUKcan’tstopairpollution.D．Theenvironmentnowisnotsafeforhumans.【答案】36．C37．B38．D39．D40．B【导语】本文通过实验介绍了关于空气污染对传递花粉的昆虫的影响。36．细节理解题。根据“Theirstudyfoundthatairpollutionisharmfultopollinators(传花粉者)—insectslikebeesandbutterflies.Theycan’tsmellflowersbecauseofthepollution.”他们的研究发现，空气污染对传粉昆虫有害——像是蜜蜂和蝴蝶。由于污染，他们闻不到花香。可知由于空气污染，它们会闻不到花香。故选C。37．细节理解题。根据“Todotheirstudy,Ryalls’steambuilteightfarmareas.”为了进行研究，Ryalls的团队建造了八个农场。可知Ryalls的团队在农场做研究。故选B。38．细节理解题。根据“Insuchconditions,70percentinsectsdidn’tenterthesixareas.Iftheywerethere,theydidn’thangaround(活动).Andvisitstoflowersdroppedby90percent.”在这样的条件下，70%的昆虫没有进入这六个区域。如果他们在那里，他们就不会逗留，参观鲜花的次数减少了90%。可知在有空气污染的六个区域里，这些昆虫参观鲜花的次数变少了。故选D。39．词义猜测题。根据“Scientistssaidthatnitrogenoxideandozonecanbreakdownthescents(气味)offlowers.Thismakesithardforinsectstofindtheirfood.”科学家认为氧化氮和臭氧会让昆虫找到食物变得困难，可知氧化氮和臭氧会改变花的气味，故推测breakdown应是“分解”的意思。故选D。40．推理判断题。根据“ShannonOlsson,ascientistinIndia,calledtheresults‘important’becausetheyshowthat‘safe’levelsofpollutionkeeppollinatorsaway.”印度科学家ShannonOlsson称这些结果“很重要”，因为它们表明“安全”的污染水平使传粉昆虫远离。可推测出即使是“安全”的水平也会影响这些传花粉者。故选B。DIslandsarealwayschangingtheirshapes,andsometimes,youmayseethechangehappening.Asavolcano(火山)neartheislanderupts(爆发),itshootsoutstreamsofred-hotlava(熔岩).Whenthelavareachesthewateraroundtheisland,itcoolsandformsnewland,andtheislandgrows.Mostchangesarehardtosee.Stormsandwindusuallycarrydirtandsandfromonesideoftheislandtoanotherside.Seawaveswashawaysoilandrocksfromonebeachandtakethemtoanother.So,theislandchangesshapeslowly,atinybitatatime.However,peopleonsomesmalloceanislandsareworried,becausetheythinktheirislandsarechangingshapetoofast.Theyseewavesrisehigherandfurtherontoshoresthantheyusedto,andstormsandwindsaregrowingstrongertoo.What’sworse,placesthatusedtostaydryhavebeenflooded.Forexample,intheSolomonIslands,acountrymadeupofsmallislandsinthePacificOcean,fiveislandshavedisappearedunderwater.Scientistsbelievethatitwasbecauseofglobalwarming.Withmoregasandcoalburntforcarsandfactories,peopleproducemoregreenhousegasandmaketheEarthwarmer.Then,moreicemeltsandmorewaterflowsintotheocean,andsealevelrises.Thewarmerwateralsocausesmorebigstormsandmoreseriousdamages.Butthereishope.Scientistsarelookingforwaystostopsealevelsrisingandforcleanwaystoruncarsandfactories.Wecanalsohelpbyrecycling,plantingtrees,drivingless,andwastingless.Bydoingthesethings,wecansavemoreislandsfromdisappearing.41．Howdoesanislandgrow?A．Thered-hotlavacoolsandformsnewland.B．Thevolcanogetsbiggerandmakesitgrow.C．Theseabringssoilandrockstoit.D．Thesealevelbecomeslower.42．Whatarethecausesofdisappearingislands?①Morevolcanoeruptions.

②Warmerclimate(气候).③Highersealevel.

④Moreburntgasandcoal.A．①② B．③④ C．①②③ D．②③④43．Whichwaycanpreventtheislandsfromdisappearing?A．Makingmorelandbylava.B．Runningfactorieswithgreenenergy.C．Movingpeopleonislandstootherplaces.D．Burningmoregasandcoal.44．Whatcanweinfer(推断)fromthepassage？A．Theislandswillgetsmallerandsinksomeday.B．Keepingislandsfromdisappearingispossible.C．Islandsalwayschangeshapes,butnowsuchchangesareslow.D．SolomonIslandshavedisappearedfromtheworld.45．What’sthescientists’attitude(态度)aboutdisappearingislandsaccordingtothelastparagraph?A．Hopeful B．Negative(否定的) C．Doubtful(怀疑) D．Careful.【答案】41．A42．D43．B44．B45．A【导语】本文主要介绍了岛屿改变形状的原因以及气候变化对其的影响。41．细节理解题。根据第一段的“Whenthelavareachesthewateraroundtheisland,itcoolsandformsnewland,andtheislandgrows.”可知当熔岩到达岛屿周围的水域时，它会冷却并形成新的土地，岛屿就会生长。故选A。42．细节理解题。根据第四段的“Withmoregasandcoalburntforcarsandfactories,peopleproducemoregreenhousegasandmaketheEarthwarmer.Then,moreicemeltsandmorewaterflowsintotheocean,andsealevelrises.Thewarmerwateralsocausesmorebigstormsandmoreseriousdamages.”可知随着汽车和工厂燃烧更多的天然气和煤炭，人们产生更多的温室气体，使地球变暖。然后，更多的冰融化，更多的水流入海洋，海平面上升。温暖的水也会导致更多的大风暴和更严重的破坏，因此是因为海平面的上升，气候的变暖以及天然气和煤炭的排放导致。故选D。43．细节理解题。根据最后一段的“Scientistsarelookingforwaystostopsealevelsrisingandforcleanwaystoruncarsandfactories.”可知科学家们正在寻找阻止海平面上升的方法，以及运行汽车和工厂的清洁方法。因此选项B“以绿色能源运行工厂”符合。故选B。44．推理判断题。根据最后一段的“Butthereishope.…Bydoingthesethings,wecansavemoreislandsfromdisappearing.”可知还有希望，通过这些，可以阻止岛屿消失，因此阻止岛屿消失是有可能的。故选B。45．观点态度题。根据最后一段的“Butthereishope.”可知是有希望的，因此科学家的态度是抱有希望的。故选A。五、短文选词填空（共10小题，每小题1.5分，满分15分）从方框中选择单词，并用其适当形式填空，使短文意思完整、通顺。每词限用一次。many

we

turn

recycle

take

different

separate

use

tooth

importantOurenvironmentischangingfortheworse,soitistimefor____46____togogreen.Herearesomesimplesteps____47____.Wecansavewaterbytakingshortershowersand____48____offthetapwhenwebrushour____49____.Weshouldalso____50____waterifpossible.Inordertosavepower,weshouldturnoffthelightswhenweleavearoom.Someothergoodhabitscanhelpreducepollutiontoo.Weshouldtakeourownbagswhenshopping.____51____isalsoagoodwaytohelpreducepollution.Weshould____52____wasteintodifferentgroupssothatitcanberecycled.Moreover,itis____53____forpeopletodevelopagreenlifestyle.Weshoulddo____54____exerciseandwatchlessTV.Followthesesmallsteps,andyoucanmakeabig_____55_____totheEarth!【答案】46．us47．totake48．turning49．teeth50．reuse51．Recycling52．separate53．important54．more55．difference【导语】本文主要介绍了保护环境、减少污染的一些做法。46．句意：我们的环境正变得糟糕，所以该是我们行动起来保护环境的时候了。分析句子可知用“it’stimeforsbtodosth是某人做某事的时候了”，根据前面“Ourenvironment”和备选词汇可知这里用“we我们”的宾格。故填us。47．句意：这是一些可以采取的简单措施。结合语境和备选词汇可知本句用“take”，构成短语“takesteps采取措施”，空处用动词不定式作后置定语。故填totake。48．句意：我们可以通过缩短淋浴时间和在刷牙时关闭水龙头来节约水。结合语境和空后“off”以及备选词汇可知这里用动词turn，构成短语“turnoff关闭”，空前有介词“by”，所以turn用动名词。故填turning。49．句意：我们可以通过缩短淋浴时间和在刷牙时关闭水龙头来节约水。结合语境和常识以及备选词汇可知人们可以在刷牙时关闭水龙头来节水，所以这里用可数名词“tooth牙齿”的复数形式。故填teeth。50．句意：如果有可能的话，我们也应该重复利用水。根据前一句“Wecansavewaterbytakingshortershowersandturningoffthetapwhenwebrushourteeth.”和备选词汇可知除了节约用水外，人们还可以重复利用水，所以这里用动词“use使