河南省信阳市固始县2023-2024学年九年级上学期1月期末英语试题

2023—2024学年度上期期末教学质量监测九年级英语注意事项：1.本试卷共10页，六个大题，满分120分，考试时间100分钟。2.本试卷上不要答题，请按答题卡上注意事项的要求，直接把答案填写在答题卡上。答在试卷上的答案无效。一、听力理解(20小题，每小题1分，共20分)第一节听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳答案。每段对话读两遍。()1.What'stheboy'ssecondlanguage?A.English.B.French.C.German.()2.HowdidAnnagotoYunnan?A.Bycar.B.Byair.C.Bytrain.()3.HowmanybookscanBobborrowthistime?A.2.B.3.C.5.()4.Whoismakingthecall?A.Mary.B.Juliet.C.Tom.()5.WhydidAmycry?A.Becauseherdadwokeherup.B.Becauseshehadaterribledream.C.Becauseadogranafterher.第二节听下面几段对话或独白。每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳答案。每段对话或独白读两遍。听下面一段对话，回答第6至第7两个小题。()6.What'swrongwithAndy?A.Hehasaheadache,B.Hehasastomachache,C.Hehasatoothache.()7.HowoftenshouldAndytakethemedicine?A.Onceaday.B.Twiceaday.C.Threetimesaday听下面一段对话，回答第8至第9两个小题。()8.WhendoesAmygototheoldpeople'shome?A.OnSaturdaymorning.B.OnSaturdayafternoon.C.OnSundayafternoon.()9.WhatdoesAmyusuallydothere?A.Shetellsstories.B.Shewashestheclothes.C.Shecleanstherooms.听下面一段独白，回答第10至第12三个小题。()10.Howlongwilltheshowlast?A.Fortwohours.B.Fortwohoursandahalf.C.Forfourhoursandahalf.()11.WhichclasswillreadEnglishpoems?A.ClassOne.B.ClassTwo.C.ClassThree.()12.Whydoesthespeakermentiontherules?A.Tomaketheshowgosmoothly.B.Tomakesurethestudentsarepolitetotheirteachers.C.Totellstudentsnottocarrytheirownthings.听下面一段对话，回答第13至第15三个小题。()13.What'sthepossiblerelationshipbetweenthetwospeakers?A.Husbandandwife.B.Patientanddoctor.C.Teacherandstudent.()14.Whydoesn'tthemangotothehospitaltoday?A.Becausehedoesn'tlikehisdoctor.B.Becausehedoesn'thavetimetoday.C.Becausehedoesn'twanttowaitforlong.()15.Whatwillthewomandonext?A.Waitinthehospital.B.Sendthemantothehospital.C.Askherbrothertohavealook.第三节听下面一篇短文。按照你所听内容的先后顺序将下列图片排序。短文读两遍。16.17.18.119.20.二、阅读理解(20小题，每小题2分，共40分)阅读下面四篇语言材料，然后按文后要求做题。AInventionCompetitionCALLINGALLINVENTORS!EventdetailsTheInventionCompetition,oneofthebiggesteventsforstudentsheldbythescienceclubisnowwaitingforyoutoattend!AllworkswillbeshownintheStudents’Center.Youcangothereandvote(投票)foryourfavoritebetweenMarchlstandMarch5th.TheresultswillbepostedontheschoolwebsiteonMarch15th.Prizeswillbegiventoinventionsthat:arethemostcreativearethemosthelpfularegoodfortheenvironmentHowtoenterInterestedstudentsshouldfilloutanentryform(报名表格).YoucansendittotheschoolemailboxbeforeJanuary15th.PleasehandinyourinventionbeforeFebruary28th.RulesOriginalinventionsonly!Don'tcopyinventionsthatarealreadyused.●Youshouldonlybeallowedtohandinoneinvention.Youmayenterforthecompetitionbyyourselforasateamofnomorethanfourstudents.●Youcanmakechangesbeforethevotingperiodstarts.Oncetheinventionsareshownforvoting,youcannotmakeanychanges.根据材料内容选择最佳答案。()21.Whenmayastudentvoteforhisorherfavoriteinvention?A.OnMarch3rd.B.OnMarch15th.C.OnJanuary10th.D.OnFebruary28th.()22.Whichinventionwillmostprobablygetaprize?A.Itcostslotsofmoney.B.Itlookscuteandbeautiful.C.Itispopularwithteachers.D.Ithelpsprotecttheenvironment.()23.Whatdotheunderlinedwords“Originalinventions”referto?A.Theinventionsthatarespecial.B.Theinventionsthatarebigenough.C.Theinventionsthataremadebyhand.D.Theinventionsthathaven'tbeeninventedbefore.()24.WhichisTRUEabouttherulesofthecompetition?A.Youcanmakechangesbeforetheresultsareposted.B.Teachersarealsowelcomedtoenterthecompetition.C.Fourstudentscanformateamtoenterthecompetition.D.Sendingmoreinventionsgivesyoumorechancestowin.()25.Whatisthepurposeofthetext?A.Toshowtheimportanceofinventions.B.Tointroduceaninventioncompetition.C.Toexplainhowtovotefortheinventions.D.Toinvitestudentstojointhescienceclub.BLastyear,anoldladymovedtomytown.EveryonecalledherGranny.Becauseshekepttoherself,sheseemedalittledifferent.Sheaskednothingofanyoneanddidnothingforanyone,exceptherpets.Shehadfivedogsandfourcats.Theywerealwaysbehindherwherevershewent.Oneday,anewspaperboynoticedGranny'snewspapershadn'tbeenpickedupforthreeorfourdays.Thedogsandcatsinheryardwereabitthinnerandmovedslowly.HehadnotseenGrannyforaboutaweek.Hewonderedwhethershewasallright.Hegotoffhisbikeandwalkedtothefrontdoor.Hecalled,“Hello!Anyonehere?”Helistenedforawhileandseemedtohearawhimperingsound.HequicklyrodetotheclosestneighborMrs.Green'shouseandcalled911.Whenthepolicearrived,theyfoundGrannyhadfallenandhadnotbeenabletomovetocallforhelp.ThedoctorssaidGrannyneededtogotothehospitalandstaythereforafewdays.WhileGrannywasinhospital,someneighborscametofeedherpetseveryday.Andsomeneighborstookcareofheruntilherdaughterarrived.Luckily,Grannywassoonwell.Whenshewenthome,herneighborsbroughtherfoodandflowers.Grannywassorrythatshehadnotgottoknowherneighborsearlier,butshewasgladshehad“found”them.根据材料内容选择最佳答案。()26.HowmanypetsdidGrannyraise?A.Four.B.Five.C.Eight.D.Nine.()27.WhathappenedtoGranny?A.Shewasbadlysick.B.Shehadatrafficaccident.C.Shefoughtwithaneighbor.D.Shefellandcouldn'tmove.()28.What'stheCORRECTorderaccordingtothetext?a.Someneighborsfedtheoldlady'spets.b.Theoldlady'spetsmovedslowlyinheryard.c.Theoldlady'sneighborsbroughtherfoodandflowers.d.Thenewspaperboycalled911andthepolicearrived.A.a-b-d-cB.b-d-a-cC.d-b-c-aD.c-b-d-a()29.WhydidGrannysay“shewasgladshehad‘found’them”?A.Becauseshecouldn'tfindherpets.B.Becauseshecouldn'tfindherhome.C.Becauseherneighborshelpedheralot.D.Becauseherneighborsdidn'tlethergohome.()30.Whatmighthappennext?A.Granny'spetsmightalldie.B.Grannymightmovetoanewcommunity.C.Grannymightlivewithherdaughter.D.Grannymightbecomefriendswithherneighbors.CTherearenowmorethan7billionpeopleintheworld,andthenumberisgettingbigger.Atthesametime,ascitiesgetbiggerandbigger,therearefewerfarms.Withmorepeopleandfewerfarms,howcanwegetenoughfood?Isitpossibletogrowfoodinbigcities?Manypeoplethinkso.YoucannowfindurbanfarmsallovertheworldUrbanfarmsareplaceswherepeoplegrowfoodtogetherbutthese“farms”areinbigcities.Sometimestheyareonatallbuildingorinacitypark.ThePasonaFarminTokyo,Japan,growsfoodinsideanofficebuilding.Theygrowmorethan200kindsofvegetables,fruits,andrice.Someoftheplantsgrowontheoutsideofthebuilding.Itlooksstrange,butit'sagreatidea.AlargebuildinginHague,theNetherlands,wasfullofemptyoffices.NowthebuildingisthehomeoftheUrbanFarmDeSchilde.Thisfarmgrowsfoodonthetopofthebuilding,andthereisafishfarmatthebottomofthebuilding.TheUrbanFarmDeSchildeisanamazingplace.Theygrow45tonsofvegetablesandraise19tonsoffisheveryyear.Theyselltheirfreshproductsandfishtosupermarketsandrestaurantsintheircity.Manyschoolsaroundtheworldalsohavetheirowngardensandgrowtheirownfood.Inschoolgardens,studentslearnaboutscientificplantingmethodswhiletheygrowvegetablesandfruit.Theyalsolearnhowtoworktogether.Theschoolthenusestheproductstofeedstudentsintheschool.Manystudentsliketryingthefoodthattheygrow!Startingafarmoragardenishardwork,butitcanalsohelpmanypeople.Itcanbefun,too.根据材料内容选择最佳答案。()31.Howdoesthewriterintroducethetopicofthetext?A.Bytellingastory.B.Byraisingquestions.C.Bygivingexamples.D.Byusingasaying.()32.Whatdotheunderlinedwords“urbanfarms”meaninthesecondparagraph?A.Farmsinspace.B.Farmsinbigcities.C.Farmsinmountains.D.Farmsinthecountryside.()33.WhereisthefishfarmintheUrbanFarmDeSchilde?A.Inacitypark.B.Onthetopofthebuilding.C.Outsideofthebuilding.D.Atthebottomofthebuilding.()34.Whatmaystudentslearnfromtheirschoolgardens?①Waystocook.②Scientificplantingmethods.③Runningafarm.④Workingtogetherasateam.A.①③B.①④C.②③D.②④()35.What'sthebesttitleforthetext?A.FarmsaroundtheworldB.GardensinmanyschoolsC.FoodproblemsinthefarmsD.NewfarmsinbigcitiesDAreyouoneofEarth'snextgeneration(下代)ofastronauts?36Whatdoastronautsdotoprepareforthepossibilityofajobinspace?AlyssaCarson'sdreamistobethefirstpersononMars.Asachild,AlyssareadasmuchaspossibleaboutMars.Thisincludedgoingtoaspace-themedcampforthefirsttimeattheageofseven37Atthesecamps,futureastronautsgetthechancetoexperiencetheworkofastronauts.38Ifyou'reinterested,herearesomesuggestionsforyouAstronautsmustbeinexcellentphysicalcondition39Itneedsabalanceddiet,regularexerciseandplentyofsleep.Astronautsneedtomeetalotofphysicalchallenges(挑战).Astronautsalsoneedtomeetalotofemotional(情绪的)challenges.Takeeverychancetopracticeteambuilding,leadership,andproblem-solvingskills.Moreimportantly,astronautsneedtohavewideknowledgeinmathandscience40Don'tforgetlanguages!InadditiontoEnglish,you'llneedtoknowotherlanguagessuchasRussianandChinesetocommunicatesuccessfully.根据材料内容，从下面五个选项中选出能填入文中空缺处的最佳选项，使文章意思通顺、内容完整。A.Therearemanywaystoprepareforafutureinspace.B.Ifyouransweris“Yes”,itwon'tbeanimpossibledream.C.Alyssahasattendedmorethan20suchcampssincethen.D.Everyastronautmustbeaverystrong-mindedandknowledgeableperson.E.Now,itisthetimetobeginahealthylifestyle.3637383940 三、完形填空(15小题，每小题1分，共15分)先通读短文，掌握其大意，然后从A、B、C、D四个选项中选出一个可以填入相应空白处的最佳答案。Insomesciencefictionmovies,therobotsarejustlikehumans.Theyhelpwiththehouse-workanddothemost41jobsSomescientistsbelievethattherewillbesuchrobotsinthefuture42,theyagreeitmay43hundredsofyears,Scientistsarenowtryingtomakerobots44peopleanddothesamethingsasusButrobotscientistJamesWhite45Hethinksthatitwillbe46forarobottodothesamethingsasaperson47,it'seasyforachildtowakeupandknowwhereheorsheis.Mr.Whitethinksthatrobotswon'tbeabletodothis.Butotherscientistsdisagree.Theythinkthatrobotswillbeabletotalktopeople4825to50yearsRobotscientistsarenotjusttryingtomakerobotslooklikepeople.Forexample,therearealreadyrobots49infactoriesTheydosimplejobsoverandoveragainPeoplewouldnotliketodosuchjobsandwouldgetboredButrobotswill50getboredInthefuture,therewillbemorerobotseverywhere,andhumanswillhave51worktodoNewrobotswillhavemanydifferent52Somewilllooklikehumans,and53maylooklikesnakesAfteranearthquake,snakerobotcouldhelpthegovernmentlookforpeopleunderbuildings.Thatmaynotseempossiblenow,butcomputers,spacerocketsandevenelectrictoothbrushesalso54impossibleahundredyearsagoWeneverknow55willhappeninthefuture!()41.A.interestingB.unpleasant C.pleasant D.popular()42.A.But B.So C.However D.While()43.A.use B.spend C.pay D.take()44.A.looklike B.lookat C.lookfor D.lookup()45.A.agrees B.disagrees C.likes D.dislikes()46.A.easy B.difficult C.important D.possible()47.A.Forexample B.Insteadof C.Suchas D.Atfirst()48.A.after B.for C.over D.in()49.A.workedB.work C.working D.towork()50.A.always B.usually C.never D.often()51.A.more B.less C.fewer D.little()52.A.shapes B.colors C.sizes D.actions()53.A.theother B.other C.another D.others()54.A.seem B.seemed C.looked D.look()55.A.that B.how C.what D.when四、语篇填空(15小题，每小题1分，共15分)第一节tryweactivewhichwellleadharmencouragetryweactivewhichwellleadharmencouragespreaddifferentEveryday,wewatchTV,goontheInternet,andplayvideogames.Alloftheseactivitiesuseenergy,andfinally,thiswillbe56toourplanetEarthAnactivitycalledEarthHourishappeningworldwide,andorganizerssayit'satimetodosomethinggoodfortheplanetPeopleare57toturnoffallunnecessarylightsinbuildingsandhomesonthelastSaturdayofMarch.Thentheystayindarknessforonehournomatterwheretheyare.EarthHour58beganinSydney,Australia,in2007,isaprojectoftheWorldWildlifeFund(WWF).OvertwomillionpeopleandbusinessesturnedofftheirlightsforanhourSincethen,ithas59aroundtheworldandnowalargenumberofpeopleinover190countriesjoininTheproject60todrawpeople'sattentiontotheimportanceofprotectingourplanetbysavingenergy.Italsohopestobuildabrighterfuturesothatpeoplecanlive61withnatureBesidesturningoffthelights,thereareotherwaystomakepeople62joinin,tooTheEarthHourwebsiteprovideswhatwecandoby63tolearnmoreabouttheplanet.Suggestionsincludereadingarticlesabouttheenvironment,livingagreenerlifeorgoingforanaturewalkWecandoanythingbigorsmalltomakea64Aswellasgettingmillionsofpeopletojoinin,theWWFisalsohopingthatthe65ofcountriesshouldpaymoreattentionandtakemoreactiononclimatechange56575859606164626365第二节阅读短文，根据语篇要求填空，使短文通顺、意思完整。每空限填一词。InVietnam'sbiggestcityHoChiMinhCity,thereisariceATM(自动取米机).Itgives661.5kgofriceeachtimeanditworks24hoursaday,sevendaysaweekThericeisfree.HoangTuanAnhisthebusinessmanbehindtheidea.Hehopestohelppeople67can'taffordtobuyfoodNguyenThiLyisamongthosepeopleinneed“ThisriceATM68beenhelpfulOnebagofriceisenoughforoneday,”saidthe34-year-oldmotherofthreechildren.“Iwantthosepeopleindifficultiestoknow69arestillgoodpeopleoutthereAndIwanttogivethem70secondchance,”theinventorofthemachineAnhsaid66676869,70五、补全对话(5小题，每小题2分，共10分)根据下面的对话情景，在每个空白处填上一个适当的句子，使对话的意思连贯、完整。A:Hi,Tom,areyoufreethisweekend?B:Abitbusy!71?A:I'mgoingtoworkasavolunteerinthecommunityactivities.Canyougowithme?B:I'msorry72A:Whatkindofcompetitionisit?B:ItisanEnglishspeechcompetitiontocelebratetheSpringFestival.A:Soundsgreat73B:Thankyou.ButI'mverynervous,andI'mafraidImayfailit.A:Don'tworry.Trytopracticespeakinginfrontofyourfamily.It'shelpful.B:Soundslikeagoodidea.I'llhaveatry.A:Bytheway,74?B:OfcourseIalwaysvolunteeratthelibrary75A:Iagreewithyou.It'sapitythatyoucan'tgowithmethistime.B:Nevermind.Wecanworktogethernexttime.A:Ihopeso.五、书面表达(20分)回首两年多的初中时光，你一定取得了不少的进步。请根据以下提示，以“TheProgressI'veMade”为题写一篇英语短文，谈谈你在生活和学习方面取得的进步，以及对未来的展望。1.要求:(1)文中必须包含所有提示信息，可适当发挥；(2)意思清楚，表达通顺，行文连贯，书写规范；(3)文中不得出现真实的地名、校名和人名；(4)词数100左右(开头已给出，不计入总词数)。2.提示词:makefriends,housework,developlearninghabits...TheProgressI'veMadeLookingbackonthepasttwoyears,Ihavemadegreatprogress参考答案（详解）听力理解（略）阅读理解本文讲了发明竞赛，详细地介绍了时间、参与方式和规则等。21.细节理解题。根据表格一中的Youcangothereandvote(投票)foryourfavoritebetweenMarch1#andMarch5.(你可以在3月1日至3月5日期间去那里投票选出你最喜欢的作品。)可知，学生3月3日可以投票支持他最喜欢的发明，故选：A。22.推理判断题。根据表格一中的Prizeswillbegiventoinventionsthat：·arethemostcreative·arethemosthelpful·aregoodfortheenvironment(以下发明将获得奖励：·最有创造力·最有帮助·对环境有益)并结合选项可知，C项"它有助于保护环境"的发明最有可能获奖,故选:D。23.语义猜测题。根据表格三中的Rules·Originalinventionsonly!Don'tcopyinventionsthatarealreadyused.(规则·仅限原创发明!不要复制已经使用过的发明。)可知，根据材料,"Originalinventions"是指以前没有人做过的发明,故选:D。24.细节理解题。根据表格三中的YoumayenterforthecompetitionasanindividuaIorasateamofnomorethanfourstudents.(您可以作为个人或不超过四名学生的团队参加比赛。)可知，四名学生可以组成一个队参加比赛，故选:C。25.主旨大意题。根据标题InventionCompetition(发明竞赛)及其对时间、参评方式和规则的介绍，可知，这段话的目的是介绍一项发明竞赛。故选:B这篇短文主要讲述了一个老太太搬到小镇上后，因为不爱交际而被人们称为"Granny"。她只关心自己的宠物。有一天，报童敲Granny的门，但没有人回应，他听到了呜咽的声音，于是赶紧去报警。警察赶到后发现Granny跌倒了，于是送她去了医院。在她住院期间，邻居们每天来喂她的宠物，有些邻居还照顾她。【解答】26.细节理解题。根据第一段Shehadfivedogsandfourcats.（她有五只狗和四只猫。）可知，Granny养了9只宠物。故选D。

27.细节理解题。根据第二段Whenthepolicearrived，theyfoundGrannyhadfallenandhadnotbeenabletomovetocallforhelp.（当警察赶到时，他们发现Granny摔倒了，无法动弹，无法呼救。）可知，Granny摔倒了，动弹不得。故选D。28.根据第二段Thedogsandcatsinheryardwereabitthinnerandmovedslowly.Helistenedforawhileandseemedtoheara

whimpering

sound.HequicklyrodetotheclosestneighborMrs.Green'shouseandcalled911.根据第三段WhileGrannywasinthehospital，someneighborscametofeedherpetseveryday.Andsomeneighborstookcareofheruntilherdaughterarrived.（他院子里的狗和猫有点瘦跑的很慢。他听了一会儿，似乎听到了呜咽声。他迅速赶到最近的邻居格林夫人家，拨打了911。。Granny住院期间，一些邻居每天都来喂她的宠物。一些邻居一直照顾她，直到她女儿来。）可知，b-d-a-c。故选B。

29推理判断题。根据第三段Grannywassorrythatshehadnotgottoknowherneighborsearlier，butshewasgladshehad"found"them.（Granny很抱歉没有早点认识邻居，但她很高兴"找到"了他们。）可知，从这篇文章中，我们能推断出"她的邻居们对她帮助很大"。故选C。30.推理判断题。根据第三段Grannywassorrythatshehadnotgottoknowherneighborsearlier，butshewasgladshehad"found"them.（Granny很抱歉没有早点认识邻居，但她很高兴"找到"了他们。）可知，从这篇文章中，我们能推断出"Granny和邻居们成了朋友"。故选D。31.B从第一段最后几句howcanwegetenoughfood?Isitpossibletogrowfoodinbigcities?Manypeoplethinkso所以选B32.B从后面一句Urbanfarmsareplaceswherepeoplegrowfoodtogetherbutthese“farms”areinbigcities.可知选B。33.D从这句thereisafishfarmatthebottomofthebuilding.看出选D34.D从最后一段这句Inschoolgardens,studentslearnaboutscientificplantingmethodswhiletheygrowvegetablesandfruit.Theyalsolearnhowtoworktogether.可知选D35.D从第二段第一句便是本文主题，所以选D36.根据"AreyouoneofEarth'snextgenerationofastronauts?"(你是地球上下一代宇航员之一吗?)可知，上文提出了问题，此处解释它的答案，选项E"如果你的答案是'是'，那它就不是一个不可能实现的梦想。"故选B。37.根据下文"Atthesecamps"(在这些营地)可知,此处介绍Alyssa参加过的夏令营，选项F"从那以后，Alyssa参加了20多个这样的夏令营。"符合语境。故选C。38.根据下文"Ifyou'reinterested,herearesomesuggestionsforyou."(如果你感兴趣,这里有一些建议给你。)可知，此处给的建议和"为未来的太空做准备的方法"有关，选项D"有很多方法可以为未来的太空做准备。"符合语境。故选A。39根据上文"Astronautsmustbeinexcellentphysicalcondition."(宇航员必须有良好的身体状况。)可知，宇航员必须有一个极好的身体条件，好的身体需要好的生活方式，选项B"现在，是时候开始健康的生活方式了。"符合语境。故选E。40根据上文"Astronautsalsoneedtomeetalotofemotional(情绪的)challenges.Takeeverychancetopracticeteambuilding,leadership,andproblem-solvingskills.Moreimportantly,astronautsneedtohavewideknowledgeinmathandscience."(宇航员还需要面对很多情感上的挑战。抓住每一个机会练习团队建设、领导能力和解决问题的能力。更重要的是，宇航员需要有广泛的数学和科学知识。)可知，宇航员需要面对情绪挑战，需要有数学和科学知识。因此宇航员都必须是一个有坚强意志和知识储备的人，选项C"每个宇航员都必须是一个意志坚强、知识渊博的人。"符合语境。故选D。完形填空41.B考查形容词。句意：它们帮忙做家务并做大多数令人不快的工作。interesting有趣的;unpleasant令人不快的;pleasant令人愉快的;popular流行的。故选B。42.C考查连词。句意：然而，他们同意这可能会花数百年的时间。理解上下文可知此处存在转折关系，而but后不用逗号，however后需有逗号。故选C。43.D考查动词。句意：然而，他们同意这可能会花数百年的时间。Ittakes(sb.)sometimetodosth.意为“做某事花费(某人)多少时间”。故选D。44.A考查动词短语。句意：科学家们现在正努力让机器人看起来像人并和我们做同样的事。looklike看起来像;lookat看;lookfor寻找;lookup查阅。故选A。45.B考查动词。句意:但是机器人科学家JamesWhite不同意。本句开头But表示转折关系,故指该科学家不同意。agree同意;disagree不同意;like喜欢;dislike不喜欢。故选B。46.B考查形容词。句意：他认为让机器人像人一样做同样的事情将会很困难。easy容易的;difficult困难的;important重要的;possible可能的。故选B。47.A句意：例如，对孩子来说醒来并知道他/她在哪里是容易的。由上下文可知，本句是举例说明上一句中提出的观点。forexample例如;instead相反;suchas例如;besides除此之外。suchas后不能接句子,故选A。48.D考查介词。句意：他们认为机器人在25到50年后能跟人类交谈。在一般将来时的句子中，用“in+时间段”表示在某段时间之后。故选D。49.C句意:例如,在工厂里已经有机器人在工作。workinginfactories作后置定语。50.C考查副词。句意：但是机器人永远都不会厌烦。always总是；usually通常;never从不;often经常。故选C。语篇填空51harmful本题考查形容词。根据设空前的"be"可考虑填形容词,再结合设空前的"Alloftheseactivitiesuseenergy(能源)"可推知,应用harm的形容词形式harmful。52encouraged本题考查动词。分析句子结构可知，设空处为动词的过去分词，与设空前的"are"构成被动语态；根据设空前的"it'sachancetodosomethinggoodfortheplanet"及设空后的"toturnoffallunnecessarylightsinbuildingsandhomes"可知，此处表示"人们被鼓励在3月的最后一个星期六关掉建筑物和家中的所有不必要的照明"，故填encouraged。53which本题考查定语从句中的关系词。分析句子结构可知，设空处所在部分为定语从句，修饰先行词EarthHour，再结合备选词可知，应填which。54spread本题考查动词。分析句子结构可知，设空处为动词的过去分词，与设空前的"has"构成现在完成时；根据上文中的"beganinSydney,Australia"及设空后的"nowalargenumberofpeopleinabout190cou