人教版八年级英语上册Unit2知识点讲解与练习

Unit2HowoftendoyouexerciseSectionA知识讲解一.helpwithhousework帮助做家务helpwithsth.意为“帮助做某事”helpsb.withsth.=helpsb.sth.帮助某人做某事Eg:IoftenhelphimhisEnglish.=IoftenhelphimEnglish.我经常帮他学习英语【拓展】helponeselfto...请随便吃/喝・•Pleasehelpyourselftosomecakes.canhelpdoingsth情不自禁做某事Icanthelpfallinginlovewiththatgirl.我情不自禁爱上那个女孩二.housework意为“家务劳动”不可数名词Theyhavehouseworktodo.A.manyB.much三.sometimes有时辨析sometimessometimessometimesometimesometimes有时候=attimes=fromtimetotime也是“有时的意思sometimes几次time作可数名词时可作“次数”解；表示“时间”时是不可数名词sometime某个时候可指过去或将来的某个时候sometime一段口寸间常与for连用对它提问用howlong口诀记忆分开“一段时间”；相聚“某个时候”练习

①WeplantostayinHainanfor.我们打算在海南呆一段时间

②Iamsurethatwehavemetbefore.我肯定我们之前见过几次了

③Ihavelettersfromhim.有时我会收到他的来信四.hardlyever几乎不比较hard、hardly和hardlyever

①hard作形容词时，意为“困难的；硬的；勤奋的；严厉的；苛刻的九hard作副词时常用来表示程度，意为，，努力地；猛烈地；剧烈地%|位于动词之后Thisgroundistoohardtodig.这块地太硬，挖不动Theytriedhardtosucceed.他们努力工作，以求得成功

②Hardly副词，意为“几乎不”，表示否定意义，|位于实义动词之前系动词、助动词、或情态动词之后，不表示频率常用来修饰表示能力的词，如cancould等Hecanhardlyplayfootball.他几乎不会打“篮球Thereishardlyanycoffeeleft.几乎没有剩余的咖啡了

③hardlyever是表频率的副词，意为“几乎不；几乎没有，相当于almostnotseldom练习Thereisfoodleft.几乎没有食物剩下He.他几乎不工作He.他工作努力五.Whafsyourfavorite...=What…doyoulikebest你最喜欢的是什么？.Whatsyourfavoriteanimal你最喜欢的动物是什么？六.free意为“空闲的，有空的”反义词busybefree意为“闲着，有空”eg:Heisfreenow.他现在有空拓展free还可译为“免费的”Eg Theticketsarefree.票是免费的七.quitefull很忙，相当忙.adj.full还可译为“满的，充满的”反义词是empty意为“空的”Eg Thebuswasfullwhentheygotthere.翻译拓展AbefullofB.=AbefillwithB;A中充满了BTheroomisfullofstudents.Thebusisfullofpeople.Thehallispeople.A.fillwithB.fullwithC.filledofD.filledwith

2.fulladj.“饱的”其反义词是hungry意为“饥饿的工Areyouhungryorfull你饿了还是饱了？Eg IcanteatanymoreIamquitefull.我不能再吃了，我相当饱了八.maybe”也许，大概，可能“，常位于句首Eg MaybeheknowsTom.也许他认识Tom辨析maybe和maybeLilyanEnglishteacher.Lily可能是一名英语老师九.atleast意为“至少其反义词为atmost“最多”Eg Thereareatleast1500studentsinourschool.十.howoften意为多久一次”，常用于对时间频率的提问回答可用once/twice/threetimesaday（一天一俩/三次）sometimes（有时），never（从不），veryoften（经常）等HowoftendoyouwatchTV你多久看一次电视？【拓展】•look、seewatch和read辨析look为不及物动词，后接宾语时须用介词at指看的动作see着重于看的后果，即“看到，看见九read多指“看书、报”，这里的“看”实为“读九watch表示“注视，观看，监视”之意也常用于“看电视，看比赛”等短语中一wantsb.todosth.的否定形式为wantsb.todosth.Eg Shewantsmetobringhimsomepens.否定Shewantsmehimsomepens.拓展l.wantsth.想要某物

2.wanttodosth.想要做某事wantsb.todosth.=wouldlike/lovesb.todosth.二.begoodfor意为“对有益”反义词为bebadfor“对有害”Eg:Vegetablesaregoodforyou.蔬菜对你有好处【拓展】l.begoodto”对…好”，其反义短语为bebadto“对…不好begoodat在…方面擅长”，at后面常接名词、代词或动词・ing形式，同义短语为dowellinSheisgoodatEnglishandChinese.=ShedoeswellinEnglishandChinese.她擅长英语和汉语Iamgoodatplaybasketball.begoodwith”和…相处得好；擅于和…相处Areyougoodwithchildren你和孩子们相处得好吗？Eg:Iaskedmyteacherabouttodayshomework.Herearetheresults.这是调查结果here位于句首，句子要倒装Hereis+单数名词Hereare+复数名词.Eg Hereisyourjacket.这是你的夹克四.

1.百分数由percent来表示，构成基数词+percent常用“数词+percentof+名词”这一结构作主语时，谓语的单复数要看percentof后跟的名词，如果是可数名词复数，谓语应该用复数，如果是不可数名词，谓语应该用单数Thirtypercentofthestudentslikewatchinggameshows.70percentofwaterbesaltywater盐水五.surprised惊奇的，感到意外的besurprisedatsb./sth./doingsth.对...感到惊奇，Wearesurprisedatthenews.besurprisedtodosth.对做某事感到惊讶Imverysurprisedtomeetyouhere.besurprisedthat+从句.因...而感至惊讶Imsurprisedthathecamehereontime.【拓展】surprising令人惊讶的toone9ssurprise令某人惊讶的是insurprise惊讶地吃惊地7\.theanswerstoquestions问题的答案thewaytosp去某地的路七.moststudents=mostofthestudents大多数学生.most+复数名词.Mostbirdscanfly.大多数鸟儿会飞.大部分时间.mostof+限定词+复数名词mostofthegirlsmostofmyfriends.mostof+人称代词宾格mostofthem/usthestudentslikereadingthestory.A.MostB.Mostof.the+most+多音节形容词，表示最高级，意为“最”Thisisthemostbeautifulflower.这是最漂亮的花如果most前有不定冠词a则表示“非常；很”，相当于verySheisamostbeautifulgirl.她是个非常漂亮的姑娘八.although”虽然，尽管“but意为“但是”英语中although与but不能同时使用itrainedtheboysstillplayedoutside.=Itrainedtheboysstillplayedoutside.AlthoughIgetupearlyIcantcatchtheearlybus.=IgetupearlybutIcantcatchtheearlybus.Mycousinknowsalotaboutgeographyheisonlyfouryearsold.A.becauseB.soC.although九.Its+adj+（forsb.）+todosth.意为“（对某人来说）做某事是的”Eg Itsveryimportanttolistencarefullyinclass.上课认真听讲很重要Ifseasyforustoswim.对我们来说游泳很容易IfsveryhardforhimtostudyEnglish.练习l.ItisveryimportantforusEnglishwell.tsveryniceyoumyparentsyourbestwishes.

3.一Ioftenhavehamburgersforlunch.一Youdbetternot.Itsbadforyoutoomuchjunkfood.十.by+交通工具乘.…by+时间到…・・时（为止）by+地点在…・.旁边【拓展】through和by的区别、through后常加名词表示手段媒介，throughexercise通过锻炼by后常加工具或v-ingbyworkinghard（bydoingsth.通过做某事）十一.suchas例如；像…这样后面跟名称、代词、动词的ing形式Eg:Ihavealotofhobbiessuchasand.我有许多爱好，比如读书和唱歌拓展suchadj.pron.这样的；那样的；类似的；作形容词时，其后修饰名词Tomlivesinsuchalargehouse.汤姆住在一所这么大的房子里such和so二者都有“如此；这样’的意思，但具体用法相异such用来修饰名词，so用来修饰形容词或副词

①such+a/an++〃.（单数）

②such+adj.+〃.（复数/不可数名词）

③so+adj./adv.@so+cidj.+a/an+〃.（单数）=such+a/an+adj+儿（单数）

⑤so+many/few/much/little+几（复数/不可数名词）Heissuchacleverboy.=Heissocleveraboy.Itssuchfineweathertoday.Theydidnthavesomuchtimetodotheirhomework.他们没有如此多的时间去做作业十二.spend意为“度过”或“花费（时间、金钱）Eg:Comeandspendtheweekendwithus.来和我们一起度过周末吧spendtime\moneyonsth.在…上花费时间或金钱.=spendtime\money（in）doingsth.花费时间或金钱做某事Hedidntspendmuchtimeonhishomework.=Hedidntspendmuchtimehishomework.Ispend200yuanonanewcoat.=Ispend200yuananewcoat.DontspendtoomuchtimewatchingTV.=DontspendtoomuchtimeTV.Healwaysspendhistimeplayingfootball.=Healwaysspendhistimefootball.拓展比较cost的主语是物sth.costssb.+金钱/时间某物花了某人多少钱/时间doingsth.costssb.+时间做某事花了某人多少时间take后面常跟双宾语，常见用法有以下几种Ittakessb.+时间/金钱+todosth.做某事花了某人多少时间例Ittookthemthreeyearstobuildthisroad.他们用了三年时间修完了这条路pay的基本用法是paysb.moneyforsth.付钱给某人买例Ihavetopaythem20poundsforthisroomeachmonth.我每个月要付20英磅的房租2payforsth.付的钱例Ihavetopayforthebooklost.我不得不赔丢失的书款3payforsb.替某人付钱例Don茨tworry!rilpayforyou.别担心，我会给你付钱的4paysb.付钱给某人例Theypayuseverymonth.他们每月给我们报酬十三.throughprep.以；凭借；穿过Hebecamerichthroughhardworkandability.他凭借辛苦的工作和能力变得富有Thesunlightwascominginthroughthewindow.throughacrossoverthrough意为“穿过”，指从物体的里面穿过across意为“穿过”，指从物体的表面通过over意为“越过；跨过”，指越过一个有高度的物体Theywalkedthroughtheparkaftersupper.Iswamacrosstheriverandfeltverytired.Canyoujumpoverthetable十四.however然而，不过”可以位于句首、句中、句末但要用逗号与句子的其他部分隔开Eg:Shewasill.Howevershestillwenttowork.她病了，然而她依然去上班辨析but和howeverbut直接连接前后两个句子，转折的意味比however强，特别表示非常明显的对比，However然而，但是:不能直接连接句子，必须用逗号与句子隔开Eg:l.Itbegantorainwewentouttolookfortheboy.Itasunnymorningverycold.这是个晴朗的早晨，但是却很冷十五.morethan相当于over意为“超过，多余Therearemorethan2000books.十六・lessthansix.少于6小时lessthan意为“不到，少于其反义词为morethan\over“多余，超过”Eg Shesleepslessthansevenhourseverynight.他每晚的睡眠时间不至lj7小时WeknowTomfor20years.我们认识Tom超过20年了拓展less是little的比较级，Shehaslessmilkthanme.二十二.nonenone与noonenobody的用法区别l.noone=nobody两者均只能指囚，作主语时，谓语动词一般用踵如Noone[Nobody]谁也不知道Noone[Nobody]it.没人喜欢它注按传统语法，两者之后均不能接of短语none既可指人也可指物，其后通常胺of短堀用作主语若指不可数名词，谓语只能用单数，若指可数名词，则谓语可用单数或复数Noneofthefood|was|left.一点食物都没留下NoneofthebooksQsJareTinteresting.没有一本书有趣none暗示一种|数量“一个也没有，而noone或nobody指:谁都没有”回答howmany或howmuch的提问时，通常用none而在回答who的提问时，通常用noone或nobody体会:A HowmanyEnglishbookshaveyouread你读过多少本英文书？B None.一本也没读A Howmuchmoneydidyougiveher你给了她多少钱？B None.一分也没给A Whowenttoseethefilm谁去看电影了B Noone[Nobody].谁也没去I.用所给词的适当形式填空IsherlifestylethesameasyoursorWhatarethedifferentEatingfruitcanhelpyougetmorevitamins.Mydadwantsmebealawyer.Theboyisdoingexerciseonthe.paper.Thegirlistakingexercisetokeephealthy.Thelittleboyisexercise.Shesayitsgoodforyou.Eatingvegetableseverydayisahealthlifestyle.Theoldmandoesnthavemanymoney.1dontknowifBillishealth.

二、单项选择选出句中相应空白处的最佳答

1.一Wouldyoulikesometodrink一Nothanks.A.tomatoesB.coffeeC.potatoesD.chicken

2.Shewasaquietgirlbutsheisverynow.A.beautifulB.lazyC.friendlyD.active

3.一AreyoutirednowKate一Sure当然.Icanwalkon.A.hardlyB.oftenC.usuallyD.always4IcatmeatbecauseIdontwanttobetooheavy.A.lotsofB.muchC.moreD.less

5.Herlifestyleisthesameherbrothers.A.asB.forC.withD.to

6.MyparentsarenotathomesoIhavetomylittlesister.A.lookatB.looklikeC.lookafterD.lookout

7.一hoursdoyouexerciseeveryday一Two.A.HowlongB.HowfarC.HowmuchD.Howmany

8.一Howoftendoesyourmothershop—.A.OnceaweekB.ThreetimesC.fiveandsixtimesaweekD.Foraweek

9.morefruitsandvegetablesisgoodourhealth.

10.Alotofvegetablesyoutokeepingoodhealth.A.makeB.wantC.tryD.help

11.Peterisbecausehehardlyeverexercises.A.tiredB.happyC.healthyD.unhealthy

12.Heknowsalotheisstill仍然achild.A.soB.althoughC.butD.or

13.Mydadalawyer律师whenIgrowup.A.wantsmetoB.wantsmetobeC.becameD.wanted

14.MymothersurfstheInternetshelikeswatchingTV.A.doesnthardlyeverB.hardlyeverC.isnthardlyeverD.hardlynever

15.一doeshedoontheweekend—Heoftenhelpshismotherwithhousework..A.HowB.HowoftenC.WhatD.Howsoon

16.—Whatyouusuallyonweekends-Iusuallyguitar.A.did;do;playtheB.do;do;playC.do;did;playD.do;do;playthe

17.-Areyoulateforclass—.A.YesneverB.YessometimesC.NoeverD.Nousually

18.hewastiredhedidntstoptorestA.Althoughbut;B.Although/;c.though;but;

19.CanyouhelpmethehouseA.cleaningB.withcleanC.ofcleaningD.clean

20.Lisaeighthourseverynight.WhataboutyouA.eatsB.drinksC.playsD.sleeps课后练习一.根据要求完成句子1Billusuallydo比尔周末通常做什么？doyoutheInternetaweek.你多久上一次网？每周两次SheoftenreadsEnglishbooks.改为一般疑问句sheoftenEnglishbooksMyparentswantmetobeadoctor.对划线部分提问yourparentswantyoutobeMyfavoritemovieisMrBeaa.对划线部分提问yourfavoritemovieDoyouliketodrinkmilk作否定回答I.Mygrandpakeepsingoodhealth.（改为同义句）Mygrandpa.Hegoestotheparkthreetimesaweek.（对划线部分提问）doeshegototheparkFmunhealthy也许我有点不健康牛奶对健康有利Milkforyourhealth.二单项填空一Howoftendoesheexercise一.A.HeistwelveB.HeexercisesbybusC.TwiceaweekD.Aboutonehour.Myfatherwantsmevegetableseveryday.A.toeatB.EatingC.eatD.eats80%studentslikethewatch.Whatdoest680%mean.A.NoneofthestudentsB.AllthestudentsC.SomeofthestudentsD.MostofthestudentsHaveyoueverbeentoHaiNanNo.A.everB.neverC.sometimesD.usuallyMikeisaboy.Hedoesexerciseeveryday.A.healthB.unhealthyC.healthyD.healthilyIsyourbookasmineA.sameB.someC.asameD.thesameDrinkingmilkandeatingvegetablesourhealth.A.aregoodforB.aregoodatC.isgoodforD.isgoodatMarytriesalotofvegetables.A.eatB.toeatC.eatsD.drinkKatrinareadsEnglishbooksthreefourtimesaweek.A.atB.inC.toD.ofDoyouliketogoA.skateboardB.toskateboardingC.askateboardingD.skateboardingheisillhegoestoschool.A.Although;butB./;/C.Although;/D.But;althoughTheywatchTV.A.oneaweekB.onceaweekC.onethew.eekD.onceweekTheoldmaniswellbecauseheoften.A.exercisesB.drinksC.sleepsD.play—doyoureadEnglishbooks一Twiceaday.Lilyusuallystartsthedaybreakfast.A.withB.fromC.atD.ofNancyisbecauseshehasagoodhabit.A.tallB.busyC.interestingD.healthyXiaoZhangwatchesTV.HelikessurfingtheInternet.A.hardeverB.hardlyeverC.doesnthardeverD.doesnthardlyeverEatingalotofvegetablesgoodforyourhealth.A.amB.isC.areD.beTheboyistooyoungtohimself.A.lookatB.lookafterC.lookonD.lookupHelateforschool.A.isoftenB.oftenisC.doesoftenD.oftendoes

一、重点短语helpwithhousework帮助做家务hardlyever几乎从不befree有空swingdance摇摆舞gotobedearly早点睡觉gocamping去野营themostpopular最受欢迎的gotothedentist去看牙医atleast至少howoften多久一次twiceamonth每月两次usetheInternet用互联网stayuplate熬夜；睡得很晚begoodfor对有好处inonesfreetime在某人的业余时间oldhabitsdiehard积习难改lessthan少于

二、句型荟萃helpsb.withsth.帮助某人做某事wantsb.todosth.想让某人做某事i+find+that从句发现Its+adj.+todosth.做某事是的bydoingsth.通过做某事thebestwaytodosth.做某事的最好方式maybe”也许大概可能”（一般放句首）Maybeyouareright.也许你是对的maybe可能是，也许是”为“情态动词+be动词”结构（位于句中）Youmayberight.你也许是对的词语词义用法答语特征howlong多久询问时间多久for/about+一段时间howoften多久一次询问动作的频率oftentwiceaweek等howsoon多快，过多久询问时间多快in+一段时间howfar多远询问距离多远tenminuteswalkhowmany多少询问可数名词数量数词+可数名词复数howmuch多少询问不可数名词数量数词+表示量的词+不可数名词多少钱询问价格数词+钱。