2026年人教版初中英语八年级下册第8章词汇练习题及答案

2026年人教版初中英语八年级下册第8章词汇练习题及答案第1页共1页2026年人教版初中英语八年级下册第8章词汇练习题及答案一、单项选择题（共10小题，每题2分）1.Whatdoes"butterfly"meaninEnglish?A.birdB.fishC.insectD.flower参考答案：C解析：butterfly的意思是“蝴蝶”，它是一种昆虫，所以C选项insect是正确的。A选项bird是“鸟”，B选项fish是“鱼”，D选项flower是“花”，这些都不是butterfly的意思。2.Whichwordmeans"tocarrysomethingheavy"?A.runB.jumpC.liftD.fly参考答案：C解析：lift的意思是“举起”，表示搬运重物，所以C选项lift是正确的。A选项run是“跑”，B选项jump是“跳”，D选项fly是“飞”，这些都不符合题意。3."Excuseme,whereisthelibrary?"Thissentenceisusedtoaskaboutthelocationofthelibrary.A.TrueB.False参考答案：A解析：这句话的意思是“打扰一下，图书馆在哪里？”这是用来询问图书馆位置的句子，所以A选项True是正确的。4.Whatistheoppositeof"happy"?A.sadB.angryC.tiredD.hungry参考答案：A解析：sad的意思是“悲伤的”，是happy的反义词，所以A选项sad是正确的。B选项angry是“生气的”，C选项tired是“疲倦的”，D选项hungry是“饥饿的”，这些都不是happy的反义词。5."Iusuallygotoschoolbybike."Thissentencetellsushowthepersongoestoschool.A.TrueB.False参考答案：A解析：这句话的意思是“我通常骑自行车去学校。”这告诉了我们这个人去学校的方式，所以A选项True是正确的。6.Whichwordmeans"asmallanimalthatpeoplekeepasapet"?A.catB.dogC.fishD.bird参考答案：B解析：dog的意思是“狗”，是一种人们常养的宠物，所以B选项dog是正确的。A选项cat是“猫”，C选项fish是“鱼”，D选项bird是“鸟”，这些虽然也是宠物，但不是题目所问的。7."Pleasebequiet."Thissentenceaskspeopletomakelessnoise.A.TrueB.False参考答案：A解析：这句话的意思是“请安静。”这是要求人们减少噪音，所以A选项True是正确的。8.Whatdoes"summer"mean?A.winterB.springC.autumnD.season参考答案：D解析：summer的意思是“夏天”，是一个季节，所以D选项season是正确的。A选项winter是“冬天”，B选项spring是“春天”，C选项autumn是“秋天”，这些都不是summer的意思。9.Whichwordmeans"toeatfood"?A.drinkB.sleepC.eatD.walk参考答案：C解析：eat的意思是“吃饭”，表示进食食物，所以C选项eat是正确的。A选项drink是“喝水”，B选项sleep是“睡觉”，D选项walk是“走路”，这些都不符合题意。10."MynameisTom."Thissentenceisusedtointroduceoneself.A.TrueB.False参考答案：A解析：这句话的意思是“我的名字是汤姆。”这是用来介绍自己的句子，所以A选项True是正确的。二、填空题（共10小题，每题2分）1.Thenewrulerequiresstudentsto______homeworkeveryday.参考答案：do解析：本题考查动词。根据句意“新规定要求学生每天做家庭作业”，应填入动词do，表示“做”。其他选项如make,have,play等都不符合句意。2.Mysisterisinterestedin______musicandoftenlistenstoitafterschool.参考答案：listening解析：本题考查动名词。根据句意“我妹妹对听音乐感兴趣，经常放学后听”，应填入listening，表示“听”这个动作。其他选项如watching,reading,playing等都不符合句意。3.Weshouldprotecttheenvironmentby______litteringinpublicplaces.参考答案：avoid解析：本题考查动词。根据句意“我们应该通过避免在公共场所乱扔垃圾来保护环境”，应填入avoid，表示“避免”。其他选项如reduce,recycle,throw等都不符合句意。4.Theteacheraskedthestudentsto______areportonthehistoryoftheirhometown.参考答案：write解析：本题考查动词。根据句意“老师要求学生写一份关于他们家乡历史的报告”，应填入write，表示“写”。其他选项如read,draw,speak等都不符合句意。5.Heisgoodat______basketballandhasplayedinseveralschoolteams.参考答案：play解析：本题考查动词。根据句意“他擅长打篮球，参加过几个校队”，应填入play，表示“打”。其他选项如sing,dance,swim等都不符合句意。6.Duringthesummervacation,weplanto______tothebeachforaweek.参考答案：go解析：本题考查动词。根据句意“我们计划暑假去海滩度假一周”，应填入go，表示“去”。其他选项如stay,work,study等都不符合句意。7.ThemoviewassointerestingthatIcouldn't______myeyesoffthescreen.参考答案：keep解析：本题考查动词。根据句意“电影太有趣了，我盯着屏幕看”，应填入keep，表示“保持”。其他选项如close,open,look等都不符合句意。8.It'simportantto______healthyhabitstostayfitandenergetic.参考答案：develop解析：本题考查动词。根据句意“养成健康习惯很重要，以保持健康和精力充沛”，应填入develop，表示“养成”。其他选项如break,keep,lose等都不符合句意。9.Thestudentsneedto______theirnotesbeforethefinalexamtoreviewthekeypoints.参考答案：review解析：本题考查动词。根据句意“学生们需要在期末考试前复习笔记，回顾要点”，应填入review，表示“复习”。其他选项如write,read,draw等都不符合句意。10.Sheisatalentedartistwholovesto______withdifferentcolorsandtextures.参考答案：experiment解析：本题考查动词。根据句意“她是一位有才华的艺术家，喜欢尝试不同的颜色和纹理”，应填入experiment，表示“尝试”。其他选项如mix,paint,draw等都不符合句意。三、判断题（共10小题，每题2分）1.Theword"important"canbeusedtodescribebothapersonandathing.参考答案：√解析：Theword"important"canindeedbeusedtodescribebothapersonandathing.Forexample,"Sheisanimportantteacher"(describingaperson)and"Thisisanimportantdecision"(describingathing).ThisusagealignswithcommonEnglishgrammarrules.2.Ifyouwanttoaskaboutsomeone'sopinion,youcanusethephrase"Whatdoyouthinkaboutit?"参考答案：√解析：Thephrase"Whatdoyouthinkaboutit?"isastandardwaytoaskforsomeone'sopinion.ItisgrammaticallycorrectandwidelyusedinEnglishconversations.3.Theword"interest"canrefertoaperson'scuriosityorachargeforborrowingmoney.参考答案：√解析："Interest"hasmultiplemeaningsinEnglish.Itcanrefertoaperson'scuriosityorenthusiasm,asin"Hehasagreatinterestinhistory."Itcanalsorefertothechargeforborrowingmoney,asin"Theinterestrateishigh."ThisdualusageisacommonfeatureofEnglishvocabulary.4.Whenyousay"I'minterestedinmusic,"itmeansyouwanttopaymoneyformusicalinstruments.参考答案：×解析：Saying"I'minterestedinmusic"meansyouenjoymusicorhaveapassionforit,notthatyouwanttopaymoneyformusicalinstruments.Thecorrectmeaningisaboutpersonalenjoymentorenthusiasm,notfinancialtransactions.5.Thephrase"takeexercise"iscommonlyusedtotalkaboutphysicalactivities.参考答案：√解析："Takeexercise"isacorrectandcommonphraseusedtotalkaboutphysicalactivities.Forexample,"Itakeexerciseeverymorning."ThisphraseiswidelyunderstoodinEnglish.6.Ifyou"enjoy"doingsomething,itmeansyoufeelhappyandsatisfiedwhiledoingit.参考答案：√解析："Enjoy"meanstofeelhappyandsatisfiedwhiledoingsomething.Forexample,"Ienjoyplayingthepiano."Thisusageisaccurateandalignswiththedefinitionoftheword.7.Theword"cost"isonlyusedtotalkaboutthemoneyyoupayforgoodsorservices.参考答案：×解析："Cost"isnotonlyusedtotalkaboutmoney.Itcanalsobeusedtodescribetheeffortortimerequiredforsomething.Forexample,"Itcostmealotoftimetofinishtheproject."ThisbroaderusageispartofEnglishvocabulary.8."Myhobbyisreadingbooks"isacorrectwaytoexpressyourinterestinreading.参考答案：√解析："Myhobbyisreadingbooks"isagrammaticallycorrectandnaturalwaytoexpressyourinterestinreading.Itclearlystatesthehobbyandtheactivityassociatedwithit.9.Theword"subject"canbeanounmeaningafieldofstudyoraverbmeaningtotreatsomeoneunfairly.参考答案：×解析："Subject"asanounmeansafieldofstudy,asin"Mathematicsisherfavoritesubject."However,"subject"asaverbmeanstocausesomeonetosuffer,asin"Theysubjectedhimtounfairtreatment."ThesecondmeaningisnotcommonlyusedinmodernEnglish,makingthestatementincorrect.10.Ifyou"prefer"teatocoffee,itmeansyouthinkteaisbetterthancoffee.参考答案：√解析："Prefer"meanstolikesomethingbetterthansomethingelse.Forexample,"Ipreferteatocoffee."Thisusageisaccurateandalignswiththedefinitionoftheword.四、简答题（共8小题，每题2分）1.Whatisthemeaningoftheword"library"inEnglish?参考答案：Alibraryisaplacewherebooksandothermaterialsarekeptforpeopletoreadorborrow.解析：本题考查词汇理解。library意为“图书馆”，是储存书籍和其他资料供人阅读或借阅的地方。答案依据是英语基础知识，属于基础题。其他选项如librarymeaning、libraryplace等表述不完整或错误。2.Howdoyouspellthewordthatmeans"togotobed"?参考答案：Thewordthatmeans"togotobed"isspelled"gotobed".解析：本题考查词汇拼写。gotobed意为“上床睡觉”，是一个固定短语。答案依据是基础词汇知识。其他拼写如gotobed、gotobed等均错误。3.Canyougiveanexamplesentenceusingtheword"important"?参考答案：Theword"important"meanssignificantornecessary.Examplesentence:Studyinghardisimportantforstudents.解析：本题考查词汇应用。important意为“重要的”，例句应体现其意义。答案依据是词汇应用能力。其他句子如Thebookisimportant等虽语法正确但未完全体现词义。4.Whatisthepasttenseformoftheverb"toread"?参考答案：Thepasttenseformoftheverb"toread"is"read".解析：本题考查动词时态。read的过去式与原形相同。答案依据是基础语法规则。其他形式如readed、reading等均错误。5.Explainthedifferencebetween"abook"and"thebook".参考答案："Abook"referstoanybookingeneral,while"thebook"referstoaspecificbook.Example:Iboughtabookyesterday.Thebookonthetableismine.解析：本题考查冠词用法。abook泛指一本书，thebook特指某本书。答案依据是英语语法知识。其他解释如abookisspecific、thebookisgeneral等表述错误。6.Howdoyoupronouncetheword"education"?参考答案：Theword"education"ispronouncedas/edʒʊˈkeɪʃən/.解析：本题考查语音知识。education的发音是英式/美式英语的标准发音。答案依据是语音学基础。其他发音如/edʒʊˈkeɪʃən/、/edʒʊˈkeɪʃən/等均错误。7.Whatdoesthephrase"learnfrombooks"mean?参考答案："Learnfrombooks"meanstogetknowledgeorinformationfromreadingbooks.Example:Wecanlearnalotfrombooks.解析：本题考查短语理解。learnfrombooks意为“从书中学习”。答案依据是短语含义。其他解释如learnfromteachers、learnfromexperience等均错误。8.Canyouusetheword"interest"inasentence?参考答案：Theword"interest"canbeusedinasentencelike"Myinterestinsciencehelpsmestudywell."解析：本题考查词汇应用。interest意为“兴趣”，例句应体现其意义。答案依据是词汇应用能力。其他句子如Ihaveinterest等语法错误。五、应用题（共8小题，每题4分）1.Youareorganizingaschoolparty.Thereare45studentsinyourclass.Youneedtobuysnacksanddrinksforeveryone.Applescost3yuaneach,andbottlesofjuicecost5yuaneach.Ifyouhave200yuantospend,howmanyapplesandbottlesofjuicecanyoubuyintotal?Showyourcalculations.参考答案：18applesand20bottlesofjuice解析：Let'sassumeyoubuyxapplesandybottlesofjuice.Thetotalcostshouldbelessthanorequalto200yuan.So,3x+5y≤200.Sincethereare45students,x+y≤45.Tomaximizethetotalnumberofitems,wecantrytobuyasmanyapplesaspossible.Ifwebuy45apples,thecostwouldbe345=135yuan.Thisleavesuswith200-135=65yuan.With65yuan,wecanbuy13bottlesofjuice(513=65).So,thetotalnumberofitemsis45apples+13bottlesofjuice=58items.2.Readthefollowingdialoguebetweentwofriends,LilyandTom.Lily:Iboughtanewbookyesterday.It'sreallyinteresting!Tom:Oh,whatkindofbookisit?Lily:It'samysterynovel.Ican'tstopreadingit.Tom:That'sgreat!Doyouthinkitwillbeabestseller?Lily:Ihopeso.Theauthorisveryfamous.Basedonthedialogue,whatcanyouinferaboutLily'snewbook?参考答案：Thebookisamysterynovel.解析：Fromthedialogue,wecaninferthatLily'snewbookisamysterynovel.Thisisbecauseshementionsthatit'samysterynovelandshecan'tstopreadingit.Thefactthattheauthorisfamousmightsuggestthatthebookiswell-writtenandinteresting,butitdoesn'tdirectlytellusthegenreofthebook.3.Aschoolisplanningafieldtriptothezoo.Thereare200studentsand20teachersparticipating.Theschoolneedstorentbusesforthetrip.Eachbuscanseat50people.Howmanybusesdoestheschoolneedtorent?参考答案：5buses解析：Tofindouthowmanybusestheschoolneedstorent,weneedtodividethetotalnumberofpeople(studentsandteachers)bytheseatingcapacityofeachbus.Thereare200studentsand20teachers,sothetotalnumberofpeopleis200+20=220.Eachbuscanseat50people,sothenumberofbusesneededis220/50=4.4.Sincewecan'trentafractionofabus,weneedtorounduptothenearestwholenumber.Therefore,theschoolneedstorent5buses.4.Lookatthefollowingsentence:"Thestudentsareplayingbasketballintheschoolyard."Identifythesubject,verb,andobjectinthesentence.参考答案：Subject:Thestudents;Verb:areplaying;Object:basketball解析：Inthesentence"Thestudentsareplayingbasketballintheschoolyard,"thesubjectis"thestudents"becausetheyaretheonesperformingtheaction.Theverbis"areplaying"becauseitdescribestheactionbeingperformedbythesubject.Theobjectis"basketball"becauseitisthethingthatthestudentsareplaying.5.AstoreishavingasaleonT-shirts.TheoriginalpriceofaT-shirtis50yuan.Thestoreisofferinga20%discount.HowmuchwillyoupayfortheT-shirtduringthesale?参考答案：40yuan解析：TocalculatethesalepriceoftheT-shirt,weneedtofindthediscountamountandsubtractitfromtheoriginalprice.Theoriginalpriceis50yuan,andthediscountis20%of50yuan.So,thediscountamountis20%of50=0.2050=10yuan.Therefore,thesalepriceis50-10=40yuan.6.Readthefollowingparagraphaboutanimals:"ElephantsarethelargestlandanimalsonEarth.Theyliveinherdsandhavestrongsocialbonds.Elephantsareknownfortheirintelligenceandmemory."Whatisthemainideaoftheparagraph?参考答案：ElephantsarethelargestlandanimalsonEarth.解析：ThemainideaoftheparagraphisthatelephantsarethelargestlandanimalsonEarth.Theparagraphprovidesinformationabouttheirsize,socialbehavior,intelligence,andmemory.Thesedetailssupportthemainideathatelephantsareremarkableandfascinatinganimals.7.Atrainleavesastationat9:00a.m.andtravelsataspeedof60kilometersperhour.Anothertrainleavesthesamestationat10:00a.m.andtravelsataspeedof80kilometersperhour.Atwhattimewillthesecondtraincatchupwiththefirsttrain?参考答案：11:20a.m.解析：Let'sassumethefirsttraintravelsforthours.Thedistancecoveredbythefirsttrainis60tkilometers.Thesecondtrainstarts1hourlater,soittravelsfort-1hours.Thedistancecoveredbythesecondtrainis80(t-1)kilometers.Tofindwhenthesecondtraincatchesupwiththefirsttrain,weneedtosetthedistancesequaltoeachother:60t=80(t-1).Solvingthisequation,wegett=4hours.Therefore,thesecondtrainwillcatchupwiththefirsttrainat9:00a.m.+4hours=1:00p.m.However,thequestionasksforthetimewhenthesecondtrainwillcatchup,soweneedtoconvert1:00p.m.toa.m.time.Sincethefirsttrainleftat9:00a.m.,thesecondtrainwillcatchupat11:20a.m.8.Youareplanningabirthdaypartyforyourfriend.Youneedtobuyballoons,candles,andabirthdaycake.Balloonscost2yuaneach,candlescost5yuaneach,andthebirthdaycakecosts30yuan.Ifyouhave50yuantospend,howmanyballoons,candles,andabirthdaycakecanyoubuy?参考答案：10balloons,5candles,and1birthdaycake解析：Let'sassumeyoubuyxballoons,ycandles,and1birthdaycake.Thetotalcostshouldbelessthanorequalto50yuan.So,2x+5y+30≤50.Sinceyouneedtobuyatleast1birthdaycake,ymustbeatleast1.Tomaximizethenumberofballoons,wecantrytobuyasmanyaspossible.Ifwebuy10balloons,thecostwouldbe210=20yuan.Thisleavesuswith50-20=30yuan.With30yuan,wecanbuy5candles(55=25)and1birthdaycake(30-25=5).So,thetotalnumberofitemsis10balloons+5candles+1birthdaycake=16items.标准答案与解析一、单项选择题1.参考答案：C解析：butterfly的意思是“蝴蝶”，它是一种昆虫，所以C选项insect是正确的。A选项bird是“鸟”，B选项fish是“鱼”，D选项flower是“花”，这些都不是butterfly的意思。2.参考答案：C解析：lift的意思是“举起”，表示搬运重物，所以C选项lift是正确的。A选项run是“跑”，B选项jump是“跳”，D选项fly是“飞”，这些都不符合题意。3.参考答案：A解析：这句话的意思是“打扰一下，图书馆在哪里？”这是用来询问图书馆位置的句子，所以A选项True是正确的。4.参考答案：A解析：sad的意思是“悲伤的”，是happy的反义词，所以A选项sad是正确的。B选项angry是“生气的”，C选项tired是“疲倦的”，D选项hungry是“饥饿的”，这些都不是happy的反义词。5.参考答案：A解析：这句话的意思是“我通常骑自行车去学校。”这告诉了我们这个人去学校的方式，所以A选项True是正确的。6.参考答案：B解析：dog的意思是“狗”，是一种人们常养的宠物，所以B选项dog是正确的。A选项cat是“猫”，C选项fish是“鱼”，D选项bird是“鸟”，这些虽然也是宠物，但不是题目所问的。7.参考答案：A解析：这句话的意思是“请安静。”这是要求人们减少噪音，所以A选项True是正确的。8.参考答案：D解析：summer的意思是“夏天”，是一个季节，所以D选项season是正确的。A选项winter是“冬天”，B选项spring是“春天”，C选项autumn是“秋天”，这些都不是summer的意思。9.参考答案：C解析：eat的意思是“吃饭”，表示进食食物，所以C选项eat是正确的。A选项drink是“喝水”，B选项sleep是“睡觉”，D选项walk是“走路”，这些都不符合题意。10.参考答案：A解析：这句话的意思是“我的名字是汤姆。”这是用来介绍自己的句子，所以A选项True是正确的。二、填空题1.参考答案：do解析：本题考查动词。根据句意“新规定要求学生每天做家庭作业”，应填入动词do，表示“做”。其他选项如make,have,play等都不符合句意。2.参考答案：listening解析：本题考查动名词。根据句意“我妹妹对听音乐感兴趣，经常放学后听”，应填入listening，表示“听”这个动作。其他选项如watching,reading,playing等都不符合句意。3.参考答案：avoid解析：本题考查动词。根据句意“我们应该通过避免在公共场所乱扔垃圾来保护环境”，应填入avoid，表示“避免”。其他选项如reduce,recycle,throw等都不符合句意。4.参考答案：write解析：本题考查动词。根据句意“老师要求学生写一份关于他们家乡历史的报告”，应填入write，表示“写”。其他选项如read,draw,speak等都不符合句意。5.参考答案：play解析：本题考查动词。根据句意“他擅长打篮球，参加过几个校队”，应填入play，表示“打”。其他选项如sing,dance,swim等都不符合句意。6.参考答案：go解析：本题考查动词。根据句意“我们计划暑假去海滩度假一周”，应填入go，表示“去”。其他选项如stay,work,study等都不符合句意。7.参考答案：keep解析：本题考查动词。根据句意“电影太有趣了，我盯着屏幕看”，应填入keep，表示“保持”。其他选项如close,open,look等都不符合句意。8.参考答案：develop解析：本题考查动词。根据句意“养成健康习惯很重要，以保持健康和精力充沛”，应填入develop，表示“养成”。其他选项如break,keep,lose等都不符合句意。9.参考答案：review解析：本题考查动词。根据句意“学生们需要在期末考试前复习笔记，回顾要点”，应填入review，表示“复习”。其他选项如write,read,draw等都不符合句意。10.参考答案：experiment解析：本题考查动词。根据句意“她是一位有才华的艺术家，喜欢尝试不同的颜色和纹理”，应填入experiment，表示“尝试”。其他选项如mix,paint,draw等都不符合句意。三、判断题1.参考答案：√解析：Theword"important"canindeedbeusedtodescribebothapersonandathing.Forexample,"Sheisanimportantteacher"(describingaperson)and"Thisisanimportantdecision"(describingathing).ThisusagealignswithcommonEnglishgrammarrules.2.参考答案：√解析：Thephrase"Whatdoyouthinkaboutit?"isastandardwaytoaskforsomeone'sopinion.ItisgrammaticallycorrectandwidelyusedinEnglishconversations.3.参考答案：√解析："Interest"hasmultiplemeaningsinEnglish.Itcanrefertoaperson'scuriosityorenthusiasm,asin"Hehasagreatinterestinhistory."Itcanalsorefertothechargeforborrowingmoney,asin"Theinterestrateishigh."ThisdualusageisacommonfeatureofEnglishvocabulary.4.参考答案：×解析：Saying"I'minterestedinmusic"meansyouenjoymusicorhaveapassionforit,notthatyouwanttopaymoneyformusicalinstruments.Thecorrectmeaningisaboutpersonalenjoymentorenthusiasm,notfinancialtransactions.5.参考答案：√解析："Takeexercise"isacorrectandcommonphraseusedtotalkaboutphysicalactivities.Forexample,"Itakeexerciseeverymorning."ThisphraseiswidelyunderstoodinEnglish.6.参考答案：√解析："Enjoy"meanstofeelhappyandsatisfiedwhiledoingsomething.Forexample,"Ienjoyplayingthepiano."Thisusageisaccurateandalignswiththedefinitionoftheword.7.参考答案：×解析："Cost"isnotonlyusedtotalkaboutmoney.Itcanalsobeusedtodescribetheeffortortimerequiredforsomething.Forexample,"Itcostmealotoftimetofinishtheproject."ThisbroaderusageispartofEnglishvocabulary.8.参考答案：√解析："Myhobbyisreadingbooks"isagrammaticallycorrectandnaturalwaytoexpressyourinterestinreading.Itclearlystatesthehobbyandtheactivityassociatedwithit.9.参考答案：×解析："Subject"asanounmeansafieldofstudy,asin"Mathematicsisherfavoritesubject."However,"subject"asaverbmeanstocausesomeonetosuffer,asin"Theysubjectedhimtounfairtreatment."ThesecondmeaningisnotcommonlyusedinmodernEnglish,makingthestatementincorrect.10.参考答案：√解析："Prefer"meanstolikesomethingbetterthansomethingelse.Forexample,"Ipreferteatocoffee."Thisusageisaccurateandalignswiththedefinitionoftheword.四、简答题1.参考答案：Alibraryisaplacewherebooksandothermaterialsarekeptforpeopletoreadorborrow.解析：本题考查词汇理解。library意为“图书馆”，是储存书籍和其他资料供人阅读或借阅的地方。答案依据是英语基础知识，属于基础题。其他选项如librarymeaning、libraryplace等表述不完整或错误。2.参考答案：Thewordthatmeans"togotobed"isspelled"gotobed".解析：本题考查词汇拼写。gotobed意为“上床睡觉”，是一个固定短语。答案依据是基础词汇知识。其他拼写如gotobed、gotobed等均错误。3.参考答案：Theword"important"meanssignificantornecessary.Examplesentence:Studyinghardisimportantforstudents.解析：本题考查词汇应用。important意为“重要的”，例句应体现其意义。答案依据是词汇应用能力。其他句子如Thebookisimportant等虽语法正确但未完全体现词义。4.参考答案：Thepasttenseformoftheverb"toread"is"read".解析：本题考查动词时态。read的过去式与原形相同。答案依据是基础语法规则。其他形式如readed、reading等均错误。5.参考答案："Abook"referstoanybookingeneral,while"thebook"referstoaspecificbook.Example:Iboughtabookyesterday.Thebookonthetableismine.解析：本题考查冠词用法。abook泛指一本书，thebook特指某本书。答案依据是英语语法知识。其他解释如abookisspecific、thebookisgeneral等表述错误。6.参考答案：Theword"education"ispronouncedas/edʒʊˈkeɪʃən/.解析：本题考查语音知识。education的发音是英式/美式英语的标准发音。答案依据是语音学基础。其他发音如/edʒʊˈkeɪʃən/、/edʒʊˈkeɪʃən/等均错误。7.参考答案："Learnfrombooks"meanstogetknowledgeorinformationfromreadingbooks.Example:Wecanlearnalotfrombooks.解析：本题考查短语理解。learnfrombooks意为“从书中学习”。答案依据是短语含义。其他解释如learnfromteachers、learnfromexperience等均错误。8.参考答案：Theword"interest"canbeusedinasentencelike"Myinterestinsciencehelpsmestudywell."解析：本题考查词汇应用。interest意为“兴趣”，例句应体现其意义。答案依据是词汇应用能力。其他句子如Ihaveinterest等语法错误。五、应用题1.参考答案：18applesand20bottlesofjuice解析：Let'sassumeyoubuyxapplesandybottlesofjuice.Thetotalcostshouldbelessthanorequalto200yuan.So,3x+5y≤200.Sincethereare45students,x+y≤45.Tomaximizethetotalnumberofitems,wecantrytobuyasmanyapplesaspossible.Ifwebuy45apples,thecostwouldbe345=135yuan.Thisleavesuswith200-135=65yuan.With65yuan,wecanbuy13bottlesofjuice(513=65).So,thetotalnumberofitemsis45apples+13bottlesofjuice=58items.2.参考答案：Thebookisamysterynovel.解析：Fromthedialogue,wecaninferthatLily'snewbookisamysterynovel.Thisisbecauseshementionsthatit'samysterynovelandshecan'tstopreadingit.Thefactthattheauthorisfamousmightsuggestthatthebookiswell-writtenandinteresting,butitdoesn'tdirectlytellusthegenreofthebook.3.参考答案：5buses解析：Tofindouthowmanybusestheschoolneedstorent,weneedtodividethetotalnumberofpeople(studentsandteachers)bytheseatingcapacityofeachbus.Thereare200studentsand20teachers,sothetotalnumberofpeopleis200+20=220.Eachbuscanseat50people,sothenumberofbusesneededis220/50=4.4.Sincewecan'trentafractionofabus,weneedtorounduptothenearestwholenumber.Therefore,theschoolne