人教版新目标版初中英语八年级下册Unit 2 Ill help to clean up the city parks-A卷·夯实基础-含答案解析

班级姓名学号分数Unit2I’llhelptocleanupthecityparks（A卷·夯实基础）（时间：100分钟，满分：100分）第一部分选择题一、单项选择(本大题共10小题，每小题1分，共10分)1．（2022·甘肃庆阳·八年级期末）—Theyplan________somenewschoolsinthenearfuture.—That’sgreat.A．build B．builds C．building D．tobuild2．（2022·重庆南岸·八年级期末）Shecanexpect_________somegreatjokesfromthesitcoms.A．learn B．learns C．tolearn D．learned3．（2021·黑龙江·齐齐哈尔市碾子山区教师进修学校八年级期末）Don’tforgetwhenyoufinish________yourcomputer.A．toturnitoff;using B．turningoff;touse C．toturnitoff;touse4．（2022·全国·八年级期末）—IknowJoelives________.—Wearesupposedtovisithimfromtimetotime.Then,hewon’tfeel________.A．alone;alone B．lonely;lonely C．lonely;alone D．alone;lonely5．（2021·天津市滨海新区汉沽教育中心八年级期末）Youwillbe________inclasstomorrowifyoudon’tgotobedearlytoday.A．sleepy B．happy C．surprised D．excited6．（2022·全国·八年级期末）—I’mverytiredthesedaysbecauseofstudyingphysics.—Whynot________music?Itcanmakeyou________.A．listento;torelax B．listento;relax C．listeningto;relax D．listeningto;torelax7．（2022·黑龙江龙凤·八年级期末）Tom,_______thewindow,please.Itistoocoldoutside（外面）.A．open B．doesn’topen C．close D．don’tclose8．（2022·甘肃·金塔县教育局教育研究室八年级期末）Don’t________thebusuntilitstops.A．getup B．puton C．putoff D．getoff9．（2021·全国·八年级单元测试）—Ihave________inlearningEnglishandI’msoworried.Couldyouhelpmewithit?—Sure,noproblem.A．joy B．interest C．trouble D．fun10．（2021·广西·上思县教育科学研究所八年级期中）—Couldyoupleasetakeouttherubbish?—________.A．Goodidea. B．That’sOK. C．Yes,sure. D．Idon’tmind.二、完型填空(本大题共10小题，每小题1分，共10分)（2020·重庆市大学城第一中学校八年级单元测试）Wedon’thavespecialskillsbutallofuscanbespecialpeople.Why?Wecanvolunteer.Mary,aCanadiangirl,wassadbecauseshehadaheartproblem.Herclassmateshadalwaysbeentryingto11herup.However,theycouldn’tbecauseshewasso12thatsheneededlotsofmoneytohaveanoperation(手术).Herparents13togethelpfromthepublic.ATVstationsoon14acall-incenterforMary.Manypeoplecalledandoffered(主动提出)tohelpMary15.Atthesametime,Mary’sclassmatesdonatedmoney,andsomeofthemevenhandedoutflyers(传单)16Mary’sstoryatalocalsupermarket.AllabovehelpedMaryalot.Maryandherparentsreally17everyone’shardwork.Therearelotsof18forustovolunteer.TheNationalGamesinShenyang,forexample,neededthousandsofvolunteers.Andvolunteersarealso19inlocalhospitals,oldpeople’shomes,andsoon.Wecanalsohelphomelesspeopleand20peopleorvolunteertocleanupparks.Volunteeringisnotonlyagreatwaytohelppeople,butalsoagreatwaytomakenewfriends,tolearnnewskills,andtohavefun.11．A．think B．cheer C．call D．give12．A．tired B．happy C．sick D．healthy13．A．finished B．missed C．refused D．hoped14．A．setup B．cleanedup C．turnedup D．gaveup15．A．in B．up C．down D．out16．A．translating B．telling C．selling D．finding17．A．forgot B．changed C．appreciated D．joined18．A．meetings B．opportunities C．research D．competitions19．A．hurt B．offered C．caused D．needed20．A．lucky B．happy C．disabled D．dead三、阅读单选(本大题共10小题，每小题2分，共20分)A（2021·全国·八年级单元测试）Uptonow,Woodhaspublishedmorethan60diaries,andhestillupdatesthediariesfrequentlyonsocialmediawebsites.Inhisfirstdiary,hementioned,“NewsisgoingaroundaboutabadcoldvirusinWuhan,butIfeelworldsawayfrommeandfewpeoplewearmasksinpublic.”HerecordedinhisdiariesthatthousandsofmedicalworkersfromdifferentprovincesandcitieswenttoHubeitohelpwiththeanti-epidemic(抗疫).Restaurantsandshopswerecloseddown,whilesupermarketscheckedpeople’sbodytemperatures.Andcommunityworkersacrossthecountrytookstrictaction,askingpeopletostayathomeandhelpingtheoldbuydailynecessities.“Peopleinsomecountriessaidthesemeasurescouldcausepanicamongthepublic.However,myexperienceinChinashowstheseeffortsareusefulandeffective,whichfinallyremovedpeople’sfear,”Woodsaid.Wood’sdiariessoonattractedtheworld’sattention.Over10,000peoplelefthimmessagesonline,andhewasinterviewedbyCanadianCTVwhichlatershowedhisdiariesonitswebsite.“IalsoreceivedgreetingsfrommyfamilyandfriendsinCanada.TheysaidtheywereinspiredbytheeffortstheChinesehavemade,”hesaid.“PeoplefromsomecountriesthoughttheChineseoverreacted,andthattheChinesegovernmenthadoverdoneinepidemicpreventionandcontrol.However,sincemorecountriesandregionshavebeeninfected(感染)bythevirus,moreandmorepeoplecametorealizehowproperandimportantChina’scontrolandpreventionmeasuresare.”WoodisworkingwiththeNewWorldPress,whichplanstomakehisdiariesabooknamedTheInvisibleWar.Inthisbook,hehopestoshareChina’santi-epidemicexperiencewithmorepeopleacrosstheworldsotheycanbuildconfidencetofightagainstthevirus.21．Whatcanweinferfromthefirstparagraph?A．Peoplethoughtthevirusspreadfast.B．Peoplefailedtorealizethedangerofthevirus.C．Peopleworemasksinrestaurantsandsupermarkets.D．PeoplepaidenoughattentiontoWood’snewsreport.22．What’sthemainideaofParagraph2?A．Businesspeople’sworkagainstthevirus.B．Differentpeople’seffortsagainstthevirus.C．Communityworkers’keyroleagainstthevirus.D．Medicalworkers’greatsupportagainstthevirus.23．WhichonedidWoodagreeaboutChina’santi-epidemicmeasures?A．Themeasuresremovedpeople’sfear.B．TheChinesecaredtoomuchaboutthevirus.C．Themeasureswouldmakepeopleworryalot.D．Thegovernmenttooktoostrictmeasurestocontrolthevirus.24．Whatcausedsomeforeignerstochangetheirthought?A．People’sinfectioninmorecountriesandregions.B．TheworldwidenewsreportonChina’smeasures.C．Wood’sexperienceinChinasharedinhisdiaries.D．Chinesepeople’sworkingtogetheragainstthevirus.25．WhatisTheInvisibleWarmainlygoingtotalkabout?A．WhatWoodhasexperiencedathomeduringthevirus.B．Whatpeopleintheworldhavedonetofightthevirus.C．WhatChinahasdonetocontrolandpreventthevirus.D．WhatWood’sfriendshavedonetohelphimfightthevirus.B（2018·重庆市大学城第一中学校八年级单元测试）GaoDefu,10,isastudentinaprimaryschoolinasmallvillageinGuizhou.Heusedtogohungryorhaveonlyanearofcornforlunchatnoon.Butnow,Gaoandhisclassmateshavebetterfoodandvegetabledishesforfreeeveryday,thankstothefreelunchprogram.TheprogramwasstartedbyDengFei,ajournalistatthePhoenixWeekly(《凤凰周刊》).Earlythisyear,DengmetXiaoYu,aprimaryschoolteacherfromGuizhou,andwastoldthatstudentsinXiao’sschooldidn’thavelunchtoeat.Instead,theydrankwatertolessentheirhunger.Deeplyshocked,Dengdecidedtodosomethingforkidsinthepoorareas.Hepostedamessageonhismicroblog(微博)sayinghewantedtobuildacanteen(食堂)atXiao’sschool.Themessagesoongotthesupportandattention(注意)oftensofthousandsofpeoplearoundthecountry.InMarch,some500reporters,alongwithadozennewsorganizationsandcharityfunds(慈善基金),finallysetupthefreelunchprogram.Localteachersandfoundationworkerscalculated(计算)thatonelunchforonechildcost3yuan.Peoplecandonateforameal,amonth’sworthofmeals,orayear’sworthofmealsforchildrenontheInternetbygoingto.AccordingtotheChinaDevelopmentResearchFoundation(基金会),thereareabout23millionresidentstudents(住宿生)incentralandwesternruralareas.Manyofthemcomefrompoorfamiliesandcan’taffordnutritiouslunches.Now,schoolswithkidsthatcan’taffordlunchcanapplyforhelpthroughthefreelunchprogram’sofficialwebsite.Inhalfayear,theprogramhasraisedmorethan16millionyuan,providingfreelunchesforpoorstudentsin77schools.26．GaoDefuusedto________forlunchatnoon.A．havemeatandvegetablesB．haveenoughfoodC．haveonlyanearofcornD．haveonlywater27．Thefreelunchprogramwasstartedby________.A．astudentinaprimaryschoolB．ajournalistatthePhoenixWeeklyC．aprimaryschoolteacherD．500reportersandsomecharityfunds28．InParagraph2,theword“lessen”bestmeans“________”inthecontext.A．givingalessonB．stoppingthefeelingofthirstC．makingthefeelingofhungersmallerD．stoppingthefeelingofhunger29．________finallysetupthefreelunchprogram.A．DengFeiB．LocalteachersandfoundationworkersC．ThekindpeopleD．Some500reporters,alongwithadozennewsorganizationsandcharityfunds30．WhichofthefollowingstatementsisNOTtrue?A．Manyofthe23millionresidentstudentscan’taffordnutritiouslunches.B．Inpoorareas,eachchildneedsjustthreeyuanforalunch.C．Morethan16millionyuanreachedthefreelunchprogramsoon.D．ApoorstudentcangotoaspecialwebsiteontheInternetforfreelunches.第二部分课本知识应用四、根据句意及汉语提示填单词(本大题共10小题，每小题1分，共10分)31．Mygrandmaisold.Ihelpherc______watereveryday.32．Theboyiss______andtheteacherislookingafterhimnow.33．Mike’sbrotherisd______.Hecan’thearanything.34．Somepeoplecan’twalkorusetheirhandseasily.Wecallthemd______people.35．Atthegoodnews,thekidsweresohappythattheyc______loudly.36．Asa______（志愿者）,Ifeelhappytohelpothers.37．There’stoomuchpollution.Didyoureadthe______（通知）online?38．Thesedaystherearelotsof______（变化）inmyhometown.39．Thereisa______（标志）onthegatesaying“NOPARKING”.40．Youcan’twininthecompetitionifyoudon’tworkhardinthe______（训练）.五、用所给单词的正确形式填空(本大题共10小题，每小题1分，共10分)41．Yourgoodfriendis_________(strong)thanDavid.42．Wefoundoutthe_________(own)ofthelittledog.43．Iget_____________(satisfy)fromhelpingothers.44．Theydon'treallyknowwhat_________(do)next.45．It'stimeforclass.Pleasestop___________(talk)．46．Mybrotherwants___________(be)apilot.47．Hevolunteers___________(work)intheschool.48．Miketaughthisgrandpahow_____________(use)thecomputer.49．Mr.Smithhelpedtheyoungman___________(find)ajob.50．Thestudentsdecided___________(work)outtheproblembythemselves.六、句型转换(本大题共5小题，每小题2分，共10分)51．Ourteacherputofftheclassmeeting.(改为否定句)Ourteacher________________offtheclassmeeting.52．Mr.Greensetupacall-incenterforparents.(改为一般疑问句)________Mr.Green________upacall-incenterforparents?53．Iwanttohelpthembyteachingthemsomeskills.(对画线部分提问)________________youwanttohelpthem?54．Let’sthinkofawaytosolvetheproblem.(改为同义句)Let’s________________________awaytosolvetheproblem.55．Idon’tthinklearningEnglishwellisveryeasy.(改为同义句)Idon’tthink________veryeasy________________Englishwell.七、阅读回答问题(本大题共5小题，每小题2分，共10分)（2021·山东·邹城市第六中学八年级单元测试）MynameisAnn.Iworkedasavolunteerin2013becauseIwantedtodosomethingtohelpothers.Icalledsomecharityshops(慈善商店)toaskiftheyneededvolunteers.AlthoughIdidn’tmindwhereIvolunteered,IwasgladthatoneoftheSueRydershopssaidyes.SueRyderwasacharityveryclosetomyheartbecausevolunteersfromSueRyderoncecaredformydadinthehospital.VolunteeringintheshophelpedmeknowwhatshopworkwaslikeandIwassurprisedtofindhowmuchIreallyenjoyeddoingit.Ialsofoundhowimportantthepublic(公众)were.Lotsofpeoplegaveusthingstheydidn’tneedfortheshopstosell.InthiswaySueRyderraisedmoneytocareforpeoplewithlife-changingillness.IalwaysleftthecharityshoplatebecauseIknewhowimportanttheworkofSueRyderwas.AnotherthingIenjoyedaboutvolunteeringwastalkingwithothervolunteersintheshop.Theywerefriendlyandhelpful.Ireallyimprovedmyteamworkskillsbyvolunteering.IworkedintheshopfromlateApriltoearlyAugust.IlearnedmanythingsfromitandI’msuretheywillbeusefulinthefuture.根据短文内容回答问题56．WhydidAnnworkasavolunteer?_______________________________________57．WhooncegothelpfromSueRyderinAnn’sfamily?_________________________________________58．DidAnnenjoyvolunteeringintheSueRydercharityshop?__________________________________________59．WhatdidAnnthinkofothervolunteersintheSueRydercharityshop?_________________________________________________60．HowlongdidAnnworkintheSueRydercharityshop?________________________________________________八、日记(本大题共20分)61．（2019·全国·八年级单元测试）书面表达假如你叫李华，是第三中学初三的学生。星期天你和班里的同学去康乐敬老院（

old

folk’s

home）参加了社区活动。请根据下面的提示，用英语写一篇100个词左右的日记。写作要点：1．去往敬老院乘坐的交通工具；老人见到我们时的心情2．在敬老院，我们为老人做的事情；我们的感受。3．总结：作为学生，我们很喜欢参加社区活动。帮助老人是我们的职责。答案第=page1111页，共=sectionpages1111页答案第=page1212页，共=sectionpages11页参考答案1．D【详解】句意：——他们计划在不久的将来建造一些新学校。——太好了。

考查非谓语动词。固定短语plantodosth.“计划做某事”，故选D。2．C【详解】句意：她期待可以从情景喜剧中学到一些很棒的笑话。考查动词不定式。learn学习。expecttodosth表示“期待做某事”，故此处应用不定式作宾语。故选C。3．A【详解】句意：当你用完电脑，不要忘记把它关了。考查非谓语动词。forgettodosth.“不要忘记去做某事（事情还没有做）”，forgetdoingsth.“忘记做过某事（事情已经做了）”，等用完电脑时要关掉，这件事情还没发生；finishdoingsth.“做完某事”。故选A。4．D【详解】句意：——我知道乔独自居住。——我们应该时常去看望他。那样他就不感到孤独。考查形容词副词。alone独自，强调独自一人；lonely孤独，指感情孤独；第一个空指“独自一人居住”，所以用alone，第二个指“感到孤独”，这里用lonely；故选D。5．A【详解】句意：如果你今天不早点睡觉，明天上课你会犯困的。考查形容词辨析。sleepy困倦的；happy开心的；surprised惊讶的；excited兴奋的。根据“ifyoudon’tgotobedearlytoday”可知，不早点睡觉就会犯困，故选A。6．B【详解】句意：——因为学习物理，我这些天很累。——为什么不听听音乐来放松一下呢？它可以使你放松。考查固定短语。listento听；relax放松；whynot后跟动词原形，表示建议，“为什么不做某事呢”；makesb.dosth.意为“使某人做某事”，用不带to的动词不定式作宾语补足语。故选B。7．C【详解】句意：汤姆，请把窗户关上。外面太冷了。考查祈使句的肯定形式。根据后文“Itistoocoldoutside”，可知是要关上窗，此处是祈使句，应该用动词原形，故选C。8．D【详解】句意：在公共汽车停之前不要下车。考查动词短语辨析。getup起床；puton穿上，增加；putoff推迟；getoff下车。not...until...“直到……才……”，此处是直到车停才下车，故选D。9．C【详解】句意：——我在学习英语方面有困难，我很担心。你能帮我一下吗？——当然，没问题。考查名词辨析。joy愉快；interest兴趣；trouble麻烦；fun乐趣。根据“Ihave…inlearningEnglishandI’msoworried.Couldyouhelpmewithit?”可知，学习英语有困难，havetroubleindoingsth“做某事有困难”。故选C。10．C【详解】句意：——你能把垃圾带出去吗？——是的，当然可以。考查情景交际。Goodidea好主意；That’sOK没关系；Yes,sure是的，当然可以；Idon’tmind我不介意。通过“Couldyoupleasetakeouttherubbish?”可知，此处是回答对方的请求，同意的话应回答“当然可以”，“Yes,sure”符合语境。故选C。11．B12．C13．D14．A15．D16．B17．C18．B19．D20．C【分析】本文讲述了加拿大女孩玛丽得了很严重的心脏病，需要很多钱做手术，在志愿者的帮助下，玛丽得到了康复。作者告诉我们，我们也有很多机会做志愿者，成为特殊的人，像沈阳的全运会上，当地的医院和老年人福利医院等。做志愿者既可以学到技术，也可以交到朋友。11．句意：她的同学尽力的让她振奋起来。think认为；cheer欢呼；call打电话；give给。根据上文“Mary,aCanadiangirl,wassadbecauseshehadaheartproblem.”可知是想让她高兴起来。故选B。12．句意：她病的很重以至于需要很多钱做手术。tired累的；happy高兴的；sick病的；healthy健康的。根据句中“…haveanoperation”可知是生病了。故选C。13．句意：她父母希望从社会上得到帮助。finished完成；missed思念，错过；refused拒绝；hoped希望。根据下文“…acall-incenterforMary.ManypeoplecalledandofferedtohelpMary”可知是父母希望得到社会帮助。故选D。14．句意：一家电台很快为玛丽建立了一个热线中心。setup建立；cleanedup打扫干净；turnedup开大；gaveup放弃。根据下文“ManypeoplecalledandofferedtohelpMary”可知是一家电台为玛丽建立了一个热线中心。故选A。15．句意：人们打电话提供帮助玛丽。in在……里；up向上；down向下；out外出。“helpsb.out”帮助某人解决困难，固定短语，根据上文玛丽生病，电台为她成了热线，可知是许多人帮她解决困难。故选D。16．句意：有的在超市发传单，讲诉玛丽的故事。translating翻译；telling讲，告诉；selling卖；finding发现。根据“AllabovehelpedMaryalot.”可知发传单讲玛丽的故事，tellastory讲故事；故选B17．句意：玛丽和父母真的感谢每个人的辛苦工作。forgot忘记；changed改变；appreciated感激；joined参加。根据上文“AllabovehelpedMaryalot.”可推知是感激每个人的辛苦工作。故选C。18．句意：我们可以有很多机会当志愿者。meetings会议；opportunities机会；research研究；competitions比赛。根据下文“TheNationalGamesinShenyang,forexample,neededthousandsofvolunteers.Andvolunteersarealsoneededinlocalhospitals,oldpeople’shomes,andsoon.”可知是做志愿者有很多机会。故选B。19．句意：当地医院、养老院等也需要志愿者。hurt受伤；offered提供；caused造成；needed需要。根据上文“Therearelotsofopportunitiesforustovolunteer…neededthousandsofvolunteers.”可知是当地医院等也需要志愿者。故选D。20．句意：我们能帮助无家可归的人和残疾人或者自愿清理公园。lucky幸运的；happy高兴的；disabled残疾的；dead死的。上文讲述了当志愿者，结合“Wecanalsohelphomelesspeople”可知是帮助残疾的人。故选C。21．B22．B23．A24．A25．C【分析】本文是一篇记叙文。文章主要介绍了一个叫伍德的外国人在网络上发表的日记，其中记录了中国为抗击疫情所采取的措施。他的日记很快吸引了世界的关注。21．推理判断题。根据“Newsisgoingaround…,butIfeelworldsawayfrommeandfewpeoplewearmasksinpublic.”可知，武汉出现新型冠状病毒肺炎的消息传到全世界，但是伍德感觉病毒离他们很远，周围很少有人戴口罩。由此可推断，人们并没有意识到病毒的危险。故选B。22．主旨大意题。根据“thousandsofmedicalworkersfromdifferentprovincesandcitieswenttoHubeitohelpwiththeanti-epidemic(抗疫).Restaurantsandshopswerecloseddown,whilesupermarketscheckedpeople’sbodytemperatures.Andcommunityworkersacrossthecountrytookstrictaction”可知，为了抗击病毒，医护人员、商业人士、社区工作人员都做出了自己的努力，因此第二段主要讲述不同阶层的人都在为抗击病毒而努力奋斗。故选B。23．细节理解题。根据“However,myexperienceinChinashowstheseeffortsareusefulandeffective,whichfinallyremovedpeople’sfear…”可知，伍德认为中国政府所做的努力和所采取的措施最终消除了人们的恐惧。故选A。24．细节理解题。根据“However,sincemorecountriesandregionshavebeen…”可知，随着越来越多的国家和地区的人感染病毒，人们意识到了中国严格控制病毒传播措施的正确性，一些外国人的看法发生了变化。故选A。25．细节理解题。根据“Inthisbook,hehopestoshareChina’santi-epidemicexperiencewith…”可知，伍德希望和全世界的人一起分享中国的抗疫经验。故选C。26．C27．B28．C29．D30．D【分析】本文由一个叫高得福的贫困学生的故事说起，介绍了我国建立的“免费午餐”公益活动的发起经过和现状，越来越多的好心人贡献爱心给吃不起午饭的学生们，也有越来越多的孩子受益。26．细节理解题。根据第一段第二句“Heusedtogohungryorhaveonlyanearofcornforlunchatnoon.”可知高德富过去常常挨饿，中午只吃一口玉米粥。故选C。27．细节理解题。根据第二段中“TheprogramwasstartedbyDengFei,ajournalistatthePhoenixWeekly.”可知免费午餐计划是由《凤凰周刊》的一名记者发起的。故选B。28．词意猜测题。此空格处是不定式表目的，根据句意结构，结合上文“…studentsinXiao’sschooldidn’thavelunchtoeat.”可知喝水的目的是为了减轻饥饿。故选C。29．细节理解题。根据第三段最后一句“InMarch,some500reporters,alongwithadozennewsorganizationsandcharityfunds(慈善基金),finallysetupthefreelunchprogram.”可知大约500名记者以及十几家新闻机构和慈善基金，最终设立了免费午餐项目。故选D。30．细节理解题。根据第五段最后一句“Now,schoolswithkidsthatcan’taffordlunchcanapplyforhelpthroughthefreelunchprogram’sofficialwebsite.”可知有负担不起午餐费用的孩子的学校可以通过免费午餐计划的官方网站申请帮助，并没有提到一个贫困学生可以去特殊网站寻求免费午餐，由此可知，选项D错误。故选D。

31．carry32．sick33．deaf34．disabled35．cheered36．volunteer37．notice38．changes39．sign40．training【分析】31．句意：我奶奶老了，我每天帮她提水。helpsbdosth帮助某人做某事；根据句意和首字母故填carry点睛：帮助某人做某事通常有三种形式，helpsbdosth;例如：Hehelpshismotherdohousework.helpsbtodosth例如：Hehelpshismothertodohousework.和helpsbwithsth.例如：Hehelpshismotherwithhousework.32．句意：这个男孩病了，老师在照顾他。sick生病的，形容词做表语；根据句意和首字母故填carry33．句意：麦克的弟弟是聋子，他不能听见任何事情。根据Hecan’thearanything.和首字母故填deaf34．句意：一些人不能走或灵活的用手，我们叫他们残疾人。根据Somepeoplecan’twalkorusetheirhandseasily和首字母故填disabled35．句意：对这个好消息，孩子们是如此的高兴，以至于他们大声的欢呼起来。根据happy首字母可知是欢呼，根据were可知是过去时态；故填cheered36．句意：作为一个志愿者，我帮助别人感觉很高兴。volunteer志愿者，根据a可知用单数；故填volunteer37．句意：有太多的污染，你读网上通知了吗？notice通知；故填notice38．句意：这些天在我的家乡有许多的变化。根据are可知用复数；故填changes点睛：名词有可数名词和不可数名词，可数名词有单数和复数。可数名词的复数形式的构成：1.一般情况直接加s，例如：book-books；2.以s,x,sh,ch结尾的单词加es，例如：bus-buses；3.以辅音字母加y结尾的单词，把y变成i加es,例如：factory-factories；4.以f/fe结尾的单词变成v再加es，例如：thief-thieves；还有一些不规则变化，例如：man-men，child-childen39．句意：大门上有一个标志说，禁止停车。sign标志，根据a可知是单数；故填sign40．句意：如果在训练中，你不努力，你就赢不了比赛。这里用名词故填training41．stronger42．owner43．satisfaction44．todo45．talking46．tobe47．towork48．touse49．(to)find50．towork【解析】41．句意：你的好朋友比David更强壮。根据语境可知用形容词的比较级，stronger意思是“更强壮的”，根据句意，故填：stronger。42．句意：我们找出那只小狗的主人。owner的意思是“主人”，根据句意，故填：owner。43．句意：我从帮助别人身上得到满意。get+名词，satisfy的名词，satisfaction的意思是“满意”.根据句意，故填：satisfaction。44．句意：他们真地不知道下一步该做什么。这里是疑问词+todo的形式。根据题意，故填：todo。45．句意：是上课的时间了，请停止交谈。stopdoingsth.表示停止做某事。根据句意，故填：talking。46．句意：我的弟弟想成为一名飞行员。短语wanttobe+职业。根据句意，故填：tobe。47．句意：他自愿在学校里工作。短语volunteertodosth.表示自愿去做某事。根据句意，故填：towork。48．句意：麦克教给他的爷爷怎样使用那台电脑。这里是疑问词+todo的形式。Howtouse…表示怎样使用……。根据句意，故填：touse49．句意：Mr.Smith帮着那位年轻的人找到一份工作。短语helpsb.(to)dosth.表示帮助某人做某事。根据题意，故填：(to)find。50．句意：那些学生们决定靠自己解决那个难题。短语decidetodosth.表示决定去做某事。根据题意，故填towork。51．didn’tput52．Didset53．Howdo54．comeupwith55．ittolearn【解析】51．句意：我们的老师推迟了班级会议。原句中谓语动词是put，主语是第三人称单数，由此推出put是动词的过去式形式，对应的助动词是did，变否定句在did后加not，didnot=didn’t，原句谓语动词put变回原形put，故填didn’t和put。52．句意：格林先生为父母们设立了一个呼叫中心。原句谓语动词是set，主语是第三人称单数，由此推出set是动词的过去式形式，对应的助动词是did，变一般疑问句在句首用did，原句谓语动词set变回原形set，故填Did和set。53．句意：我想通过教他们一些技巧来帮助他们。划线部分是“通过教他们一些技巧”，是方式方法，提问用疑问词“how”（如何），后加一般疑问句，谓语动词want对应的助动词是do，故填How和do。54．句意：让我们想一个解决问题的方法。短语thinkof意为“想出”，同义短语是comeupwith，结构let