新人教版八年级英语下册知识点归纳

新人教版八年级英语下册知识点归纳Unit1What’sthematter?重点短语:haveastomachachehaveacoldliedowntakeone’stemperaturehaveafevergotoadoctortoone’ssurpriseagreeto(dosth.)getintotroublebeusedtotakerisksrunout(of)cutoffgetoutofbeincontrolofkeepon(doingsth.）giveup语言知识归纳：1.What’sthematter(withyou)?此句用来询问别人的病情。类似的还有：What’swrongwithyou?/What’sthetrouble?matter作动词用，意为“要紧”“有关系”，主要用于疑问句和否定句。Whatdoesitmatter?Itdoesn’tmatter.【例题】Doesit________ifwecan’tfinishittoday?A.mindB.mindsC.matterD.matters2.Ihaveasorethroat.have“患病”，常用“havea/an+名词”.haveacoldhaveafeverhaveasorebackhaveastomachachehaveacough【例题】()---Doesheoftenhave______cold?---Yes.Healso_____acoughandasorethroat.A.a;hasB./;hasC.a;haveD./;have3.Liedownandrest!躺下休息liedown躺下单词词义过去式过去分词现在分词lie说谎liedliedlyinglie躺，平放laylainlying4.That’sprobablywhy.那可能就是原因。probably意为“很可能，大概”，表示的可能性很大，是一种近乎肯定的意思。5.hurtv.使受伤；伤害；疼痛Hehurthislegwhenhefell.他摔伤的时候伤了腿。Myfeelingswerehurtwhenhedidn’taskmetotheparty.他没有请我参加聚会使我很伤心。6.Thebusdriver,24-year-oldWangPing...公交车司机，24岁的王平……24-year-old是用连字符连接数字和名词所构成的一个形容词结构，意思是“24岁的”。（名词必须用单数，常用在名词前做定语）【例题】A____girlnamedDongXinyilookedafterherdisabledfather.A.three-year-oldB.three-years-oldC.Threeyearsold7.expectvt.期待；预期；期盼expect的常见用法:expect+名词/代词The old man is expecting his daughter’s visit.expecttodosth. I expect to get a birthday present from my dad. expectsb.todosth.Do you expect him to teach you English?expect+从句I expect that you will get there soon. 【辨析】expect与lookforwardto两者都有期待的意思lookforwardtodoingsth.I’mlookingforwardtoseeingTom.8.Buttohissurprise...但是令他吃惊的是……toone’ssurprise表示“令人惊奇的是……”，相当于“主语+be+surprised”Tohissurprise,hefoundthegirlwasbind.=Hewassurprisedtofindthegirlwasblind.令他惊奇的是，他发现这个女孩是个盲人。【拓展】insurprise表示“惊奇的”，相当于副词性短语，用来修饰动词。Thetwogirlslookedateachotherinsurprise.那两个女孩惊奇地互相看着。besurprisedat表示“对……感到惊讶”。Weareverysurprisedatthenews.听到这个消息，我们很诧异。surprising表示“使人惊奇的”，作表语时，主语是事物。9.Theydon’twantanytrouble.他们不想惹麻烦。①trouble用作名词，意为“烦恼，困难，麻烦，疾病等”。Hislifeisfulloftrouble.他的生活充满了烦恼。What’sthetrouble?怎么了？②trouble用作动词，意为“麻烦，打扰”。I’msorrytotroubleyou.抱歉打扰你。【拓展】与trouble相关的短语introuble处于困境中getintotrouble陷入困境Havetrouble(in)doingsth.做某事有困难【例题】-HowisyourEnglishstudy?-Notbad.ButI_____learningEnglishgrammar.A.aminterestedB.amgoodatC.havealittletroubleD.havenotrouble10.辨析usedtodosth.与beusedtosth./doingsth.↓↓过去常常……习惯于某事/做某事Weusedtodrawpicturesbadly.Youwillgetusedtotheweatherhere.Intheend,Igotusedtodoinghardwork.11.辨析runout与runoutof人+runoutofTheyhaverunoutofthewater.物+runout(不可用于被动语态）Themoneyisrunningout.【例题】选出能代替句中画线部分的一项()YesterdayIusedupallthesalttocookdumplings.Ineedtobuysomenow.A.ateupB.runoutofC.ranofD.ranoutof12.makedecisions=makeadecision作出决定decision为decide的名词形式makeadecisiontodosth.=decidetodosth.13.beincontrolof管理；控制Ateachershouldbeincontrolofhisclass.重点语法：情态动词should的用法（1）should后接动词原形，变否定句在should后加not,变一般疑问句时将should提前。（2）should常用于以下两种情况：①提出建议Youlookedtired.Youshouldliedownandrest.②表推测，意为“该，按理应当”。Waitaminute.Ithinkheshouldcomeinaminute.Unit2I’llhelptocleanupthecityparks.重点短语:cleanupbyoneselfcheerupputoffgiveoutputonusedtogiveawaytakeaftersetupmakeadifferencecareforcomeupwith语言知识归纳：1.giveout分发，发放【拓展】give构成的短语还有：giveaway赠给，赠送givein屈服，投降giveup放弃giveoff发出（气味、光、热等）2.comeupwith提出，想出(1)表示“想出或提出”，相当于thinkofIthinkshecancomeupwithagoodidea(2)comeupwith还可表示“赶上”,相当于catchupwith.Weshouldstudyhardtocomeupwiththem【例题】()Wemust_____aplantoimproveyourmath.A.pickupB.catchupwithC.comeupwithD.makeup3.I’vrunoutofit.我已经把它用完了。runoutof表示“用完，用光”，其主语一般是人。【拓展】runoutof还可表示“从……跑出来”。Billranoutoftheroom.Bill从房间里跑出来。run构成的短语还有runaway逃走runafter追赶runintodifficulties遇到困难【例题】()Whenyourmoney____,pleasecometomeforsome.A.runsoutofB.runsoutC.isrunningoutofD.isrunout4.Itakeaftermymother.我长得像我妈妈。【辨析】takeafter与lookliketakeafter意为“长得像，行为、性格等像”,尤其是像自己的长辈。Theboytakesafterhisfather.这个男孩长得像他爸爸。looklike可以用于所有场合，既可指人也可指物，仅指外表看上去像。Themanlookslikeourteacher.这个男的看起来像我们的老师。Therainbowlookslikeabridge.彩虹看上去像一座桥。【拓展】take构成的短语takeuptakeofftakeplacetakeone’stimetakecare【例题】()-You’vereallybeautifulblondhair.-Thankyou.I____mymother.A.lookafterB.takeafterC.takefromD.lookfor5.setup创办，建立setup为副词短语，与start,establish同义They’vesetupacompany.他们创办了一家公司。与set相关的短语还有：setout动身，开始（做某事）setoff出发，引起，激发6.Youhelpedtomakeitpossibleformetohavelucky.对我来说，有了你的帮助，我才有可能拥有Lucky.it是形式宾语Youmadeitpossibleformetocatchupwithothers.你让我有可能赶上其他人。【例题】()Hefound___hardtogotosleepwiththelighton.A.itB.thatC.heD.him7.Luckymakesabigdifferencetomylife.Lucky对我的生活产生了很大的影响。makeabigdifference意为“对……产生很大的影响”，difference在此为“影响”的意思。【例题】()Theheavysnowdidn’t___theinternationalairlines.A.payattentiontoB.addtoC.makeadifferencetoD.keepto8.imaginev.想象，假想；以为，认为imagine（v.想象）→imagination（n.想象）→imaginative(adj.富于想象力的）9.help...out帮……克服困难，帮……分担工作Theteacheroftenhelpshisstudentsout.那位老师经常帮他的学生解决问题。10.beexcitedabout...对……兴奋I’mexcitedaboutthegameofLiNa.我对李娜的比赛感到兴奋。exciting修饰物重点语法：动词短语动词短语主要有以下四种构成形式：(1)动词+介词这类动词短语主要有：agreewith,askfor,arriveat,hearof,lookat,takeafter,listento等。这类动词后的宾语无论是名词还是代词，都要放在介词之后。I’mlookingformypen.Don’tlaughatthepoorman.(2)动词+副词这类动词短语有：findout,giveout,lookup,puton,turnon/off,wakeup,workout等。这类动词后面的宾语是名词时，名词可放在副词前面或后面；宾语是代词时，代词只能放在副词前面。Pleasepickupthepen.=Pleasepickthepenup.Ittookhimtwohourstoworkitout.(3)动词+名词+介词这类动词短语有：havealookat,makefriendswith,payattentionto,takecareof,lookforwardto等。在这类动词短语中，宾语都放在介词之后。Youshouldpaymoreattentiontoyourpronunciation.(4)动词+形容词+介词这类动词短语有：beangrywith,bebusywith,begoodfor,bedifferentfrom,beinterestedin,begoodat等。【例题】(1)()Whenyoudon’tknowaword,youcan___inthedictionary.A.lookitupB.setitupC.giveitupD.pickitup(2)()Wewillhavedinnerattherestaurant,whichisfamous___itsseafood.A.ofB.toC.forD.asUnit3Couldyoupleasecleanyourroom?重点短语:takeouttherubbishmakethebedallthetimeborrowsomemoneyhelpwithhouseworkhangoutwith...awasteoftimeinordertoas...as...takecareofinsurprisedothedishesasaresult语言知识归纳：1.workon从事于；着手干Thewriterisworkingonanewbook.那位作家正在写一本新。Sheisgoingtoworkonherphysicsproject.她打算从事她的物理项目。【例题】()Thescientistsare____inventingsomemethodsofproducingelectricity.A.workingonB.workingoutC.workingatD.workingfor2.atleast至少atleast修饰时间、距离、长度等，以加强语气。翻译短语位atmost,意为“至多，最多”。Hekeptmewaitingatleastanhour.Therewerefiftypeoplethereatmost.3.allthetime一直；总是Thingsarechangingallthetime.事情一直在变化。【拓展】time相关的短语ontime准时atthesametime同时intime及时Fromtimetotime偶尔thefirsttime第一次【例题】选出能代替句中划线部分的一项。()IalwaysgoshoppingonFriday.A.allthetimeB.allthesameC.allalongD.alltheway5.I’mjustastiredasyouare!我和你一样累。as...as意为“和……一样”,表示同级比较。as...as中间要用形容词或副词原级。Thisstoryisasinterestingasthatone.这个故事和那个一样有趣。否定式为notas/so...as,意为“不如……”。Thegardenisnotsobeautifulasyouthought.【例题】()HespeaksFrenchwell,butofcoursenot____apersonborninFrance.A.asclearasB.clearerthanC.asclearlyasD.themoreclearly6.Foroneweek,shedidnotdoanyhouseworkandneitherdidI.一个星期，她不做家务，我也不做家务。so,neither倒装句型So+助动词/be动词/情态动词+主语Neither+助动词/be动词/情态动词+主语这两种结构常用来前面所说的情况，后面某人（物）也是这样。助动词/be动词/情态动词在形式上与前句的谓语保持一致，而其单复形式由后句的主语决定。So依附于肯定句，neither依附于否定句。BillwatchedTVlastnight.SodidAnn.Lilyisn’tateacher.NeitherisMary.【例题】()-Ineverdrinkcoffee.-______.A.SodoIB.SodidIC.NeitherdidID.NeitherdoI7.辨析borrow与lendborrowsth.fromsb.向某人借（入）某物lendsth.tosb./lendsb.sth.把某物借给某人【注】borrow,lend都是非延续性动词，如果要表示“借多长时间”要用keep。【例题】()Althoughyoulikethebook,youmayonly___itfortwoweeks.A.borrowB.keepC.lendD.stay8.spendv.花费（金钱；时间）spend+钱/时间+onsth.在……上花费时间或金钱spend+时间+(in)doingsth.花时间做某事【例题】()YangFeng___everySaturdayafternoonvolunteeringinanoldpeople’shome.A.costsB.takesC.paysD.spends8.providev.提供；给予providesth.Therestaurantprovidethebestservice.providesb.withsth.Theparentsprovidethechildrenwithfoodandclothes.providesth.forsb.Theschoolsprovidedesksandchairsforthestudents.【例题】()Toprotecttheenvironment,supermarketsdon’t___freeplasticbagstoshoppers.A.takeB.showC.provideD.carry10.dependon依靠；依赖；相信dependon为固定短语，不能用进行时态，也不可用被动语态Asweknow,goodresultsdependonhardwork.Youcan’tdependonyourparentsforever.10.Theearlierkidslearntobeindependent,thebetteritisfortheirfuture.孩子越早学会独立，对他们的将来就越好。the+比较级...，the+比较级...“越……就越……”Theharderyouworkatyourstudy,thebettergradesyouwillhave.【例题】()-Therewasthickhaze(雾霾)inourcitythisspring.Whatdoyouthinkofit？-Ithink___carswedrive,____pollutionourcitywillhave.A.thefewer;thefewerB.thefewer;thelessC.Themore;thefewerD.themore;theless11.inorderto的用法(1)inorderto意为“为了……”，强调目的，后接动词原形。Inordertoletthestudentshearhim,hespokeloudly.Wehavetostudyhardinordertopasstheexam.Inordernottobelateforschool,shetookataxi.(2)含inorderto的句子可以转变为由sothat或inorderthat引导的状语从句。Sheranquicklyinordertocatchthebus.Sheranquicklyinorderthatshecouldcatchthebus.Sheranquicklysothatshecouldcatchthebus.12.asaresult的用法asaresult用于引出结果，常用于两个句子之间，其中一个是另一个的结果，且前后用标点符号将两个句子隔开，意为“结果是”。Hedidn’tlistencarefully.Asaresult,hecouldn’tworkoutthemathsproblem.【注】asaresultof的意思是“由于，因为”，相当于becauseof。Peterwaslateasaresultoftheheavyrain.=Peterwaslatebecauseoftheheavyrain.【例题】()Theboystudiedhard.______,hepassedtheexam.A.IafactB.OntimeC.AfterallD.AsaresultUnit4Whydon’tyoutalktoyourparents?重点短语:lookthroughworkoutgetonwithcutoutcompare...withinone’sopinionabigdealsothatgetintoafightcommunicatewithnot...until...callsb.upinsteadof语言知识归纳：1.Whydon’tyoutalktoyourparents?Whydon’tyoudosth.=Whynotdosth.“为什么不……?”【拓展】提出建议的句型①What/Howaboutdoingsth.?做某事怎么样？②Shallwedosth.?我们做某事好吗？③You’dbetter(not)dosth.你最好（不）做某事。④Whydon’tyoudosth.为什么不做某事呢？⑤Wouldyouminddoingsth.?你介意做某事吗？2.allowv.允许，许可①allowsb.todosth.“允许某人做某事“Myparentsallowmetoplaycomputergameonweekends.②allowdoingsth.“允许做某事”Shedoesn’tallowsmokinginherhouse.③allow+名词Wecan’tallowsuchathing.【例题】()Doyouoftenallow____until11:00p.m.A.tostayupB.stayupC.stayingupD.andstayup3.workout产生……效果，进展……Thingsworkedoutquitewellforus.对我们来说，事情进展很好。Heworkedoutthemathsproblem.他算出了这道数学题。Canyouworkouttheproblemalone?你一个人能把问题搞清楚吗？4.communicatev.交流信息；沟通Ican’tcommunicatewiththematthemoment.此刻我无法同他们进行交流。communicationn.交流Peoplecan’tgetonwellwitheachotherwithoutcommunication.没有交流，人们就无法相处得好。【例题】选出能代替句中划线部分的一项。()Peoplechoosetokeepintouchwiththeirfriendsbye-mail.A.writeB.readC.agreeD.communicate5.arguevi.争论；争吵arguewithsb.与某人争论Don’targuewithyourparents.不要和你的父母争论。argue的名词形式是“argument”,haveanargumentwithsb.与某人辩论。Alicehandanargumentwithherbestfriend.【例题】()Ineverargue____myparents.A.inB.toC.forD.with6.insteadadv.代替，顶替Ifyouarebusy,youmaycomeanotherdayinstead.【辨析】instead与insteadofinstead副词舍前取后，可单独使用，位于句首或句末。insteadof介词短语舍后取前，后面常跟名词，代词及动词ing。Hedidn’tanswer.Heaskedhisfatherinstead.Weeatriceinsteadofnoodles.【例题】()Whataniceday!Weshouldgosightseeing____watchingTVinthehotel.A.becauseofB.insteadofC.togetherwithD.out7.offerv.提供；提出；建议①offer做“提供”讲时，可接双宾语。offersth.tosb.=offersb.sth.向某人提供某物Thewaitressofferedacupofteatotheman.=Thewaitressofferedthemanacupoftea.②offer还有“提出，建议”的意思，其后接不定式，表示主动提出做某事。Theoldmanofferedtolendtheboysomemoney.【例题】()Thelittleboy___hisseattoanoldladyonthecrowdedbus.A.lentB.offeredC.tookD.brought8.Andtheyarealwayscomparingthemwithotherchildren.compare作动词，意为“比较，和……相比”。①compare...with...把……同……相比较Parentsshouldn’talwayscomparetheirchildrenwithothers.父母们不该总是把自己的孩子同别人相比较。②compare...to...把……比作……Peopleoftencomparethelifetoastage.人们常把生活比作一个舞台。【例题】()Myhandwritingcannotbecompared___myfather’s.A.toB.withC.onD.for11.Mycousinborrowsmythingswithoutreturningthem.①return意为“归还”，其后可接双宾语returnsb.sth.=returnsth.tosb.Don’tforgettoreturnmethekeys.②return还有“返回”的意思，相当于goback,后接地点时需要介词to。HereturnedtoShanghaiaweekago.【例题】①那本书你还给图书馆了吗？Didyou_______thebook_______thelibrary?②()Idon’tknowwhenwewill_______HongKong.A.returnbackB.returntoC.returnbacktoD.returnUnit5Whatwereyoudoingwhentherainstormcame?重点短语:gooffpickupfallasleepdiedownmakeone’swayinsilencetakedownatfirstwaitforinamesstherestofhavemeaningtobasketballcompetitionaswellmakesure语言知识归纳：1.while当……的时候作连词引导时间状语从句，在while引导的从句中，其谓语动词只能是延续性动词，强调主从句中的动作或状态同时发生。WhileIwaswatchingTV,someoneknockedatthedoor.when意为“当……时”，动作有一前一后的意思。WhenIpassedthatroomIheardsomeonesinging.while作连词时也可理解为“然而”，表示转折关系。Ilikeappleswhilemysisterdoesn’t.【例题】()Tomlikesreadinganewspaper____heishavingbreakfast.A.untilB.whileC.becauseD.though()Marywastalkingonthephone____someoneknockedatthedoor.A.whileB.beforeC.whenD.after2.makesure查明；确信①makesureofsth.②makesuretodosth.③makesurethat+从句【例题】()ReadyourEnglishpaperagainand____thereisnomistakeinitbeforeyouhanditin.A.makesureB.turnupC.comeoutD.lookfor3.IgottothebusstopbutIstillmissedthebus.get意为“到达”时，是不及物动词，后面跟地点名词时，要加介词to。HowcanIgettothenearestsupermarket?表示“到达”的三种形式：①arrive意为到达at+小地点arrivein+大地点②getto后接地点名词。Hegottoschoolat7:00thismorning.③reach意为“到达”，是及物动词，后面直接跟地点名词。WhendidyoureachAmerica?【例题】()Pleasewritetomeassoonasyou_____yourschool.A.gettoB.reachtoC.arriveD.come()-Whendidyouraunt______inShandong?-Yesterdayafternoon.A.reachB.getC.arriveD.come4.Peopleoftenrememberwhattheyweredoingwhentheyheardthenewsofimportanteventsinhistory.hear动词,意为“听说”。常用结构为：①hearsb.dosth.听见某人做某事②hearsb.doingsth.听见某人正在做某事③hearof/aboutsb./sth.听说某人或某事④hearfromsb.收到某人的来信⑤hear+that从句听说……【例题】()Tomlikesto_____othersbutheneverwritestothem.A.hearB.hearofC.hearaboutD.hearfrom()-Whendidyou_____thenews?-Justnow.A.hearaboutB.hearfromC.heardD.hearing5.Iplayedthesongwithoutanymistakes.without介词,意为“无；没有”，其反义词为with,后接名词、代词或动词ing。Fishcan’tlivewithoutwater.Hewenttoworkwithouthavingbreakfast.【例题】她没敲门就进了房间。Sheenteredtheroom_______________atthedoor.你不戴眼镜能看得清东西吗？Canyouseeclearly__________your_______Unit6Anoldmantriedtomovethemountains.重点短语:alittlebitinsteadofturn...intoonceuponatimefallinlovegetmarriedassoonasinsteadofgivebirthtobebornturn...into语言知识归纳：2.try的用法①trytodosth.尽力做某事HeistryingtolearnEnglish.②trydoingsth.试着做某事Youshouldtrytakingmoreexercise.③tryone’sbest尽力I’lltrymybesttohelphim.④tryon试穿Wouldyouliketotrythisdresson?2.remindvt.使想起，提醒①remindsb.of/aboutsth.使某人想起某事Thesongremindmeofmychildhood.②remindsb.todosth.提醒某人做某事Peterremindedhertoattendthemeetingontime.4.Whatdoyouthinkof...?你认为……怎么样？Whatdoyouthinkof...?=Howdoyoulike...?注：think后接动名词，like后接带to的不定式如：Whatdoyouthinkofgoingclimbingtomorrow?=Howdoyouliketogoclimbingtomorrow?你认为明天去爬山怎么样？【例题】()-______doyouthinkofthefootballmatch?-It’sperfect.It’smoreexcitingthan____matchthatIhaveeverwatched.A.How;anyotherB.How;anyothersC.What;anyotherD.What;anyothers5.Neitherofyouiswrong.你们两个都没错。neither两者都不；也不e.g.Neitheroftheideasisgood.Ilikeneithersubject.neither作连词，表示“既不……也不……”，连接两个主语时，谓语动词要遵循就近原则。e.g.Neitheryounorheisinthisteam.NeitherhenorIamateacher.【例题】()-Whichdoyouprefer,aCDplayerorawalkman?-_______.Ipreferacomputer.A.BothB.EitherC.NoneD.Neither5.unless的用法unless的意思是“除非，如果不”，相当于ifnot,用来引导条件状语从句。主句同常用将来时，从句用一般现在时。e.g.Youwillmisstheearlybusunlessyougetupearly.Wewon’tgotothecinematomorrowunlessmymotherdoes.【例题】()Wecan’tbesuccessful_____wekeepworkinghard.A.ifB.unlessC.becauseD.when6.so...that...如此……以至于……so...that...可以转化为简单句，要用too...to...或not...enoughto...句型时，not后要用原句中的形容词或副词的反义词。Sheissoyoungthatshecan’tlookafterherself.=Sheistooyoungtolookafterherself.=Sheisnotoldenoughtolookafterherself.【例题】()-Youstudy_____hard______you’resuretopasstheexam.-Thankyouforsayingso.A.enough;toB.as;asC.so;that7.assoonas一……就……assoonas为连词，引导时间状语从句当主句是一般将来时或祈使句时，从句通常用一般现在时，简称“主将从现”。e.g.I’lltellheraboutthematterassoonasshereturnshome.I’llringyouupassoonasIgottoSanya.【例题】()-WillyoupleasegivethedictionarytoJane?-Sure.I’llgiveittoher____shearriveshere.A.beforeB.untilC.becauseD.assoonas8.thewholefamily全家whole的用法①作形容词，意为“全部的；完整的”。thewholenight整夜inthewholeworld全世界②作名词，意为“全部，全体，整个”。asawhole作为整体thewholeofChina整个中国【辨析】whole与allwhole一般位于冠词、所有格或别的限定词之后，而all则位于这些词之前allthetime/thewholetime整个时间allmylife/mywholelife我的一生alltheclass/thewholeclass整个班级【例题】()Alisonhasbeenskatingfor_____twohours.A.theallB.wholetheC.thewholeD.allof9.bemadeof与bemadefrom由……制成①bemadeof表示制成成品后，仍可以看出原材料Thedesksaremadeofwood.②bemadefrom看不出原材料，属于化学变化Paperismadeofwood.【例题】()Thispairofshoes_____byhand,andit____verycomfortable.A.ismadefrom;isfeltB.aremadeof;feelsC.ismadeby;feelsUnit7What’sthehighestmountainintheworld?重点短语:feelfreeasfarasIknowinthefaceofeventhoughatbirthwalkintofalloverorsotakeinmanytimesendangeredanimalsachieveone’sdream语言知识归纳：3.比较级和最高级的特殊句型①“get/become+形容词比较级+and+形容词比较级”表示“变得越来越……”，当形容词为多音节词（少数双音节词）时，用“moreandmore+原级”。Itgetswarmerandwarmerwhenspringcomes.②“the+形容词比较级……，the+形容词比较级……”意为“越……就越……”。Theharderyouworkatyourstudy,thebettergradesyouwillhave.③“oneofthe+最高级+可数名词复数”表示“最……之一”。ChengduisoneofthemostbeautifulcitiesinChina.④Thisis/was+the+最高级+名词+that引导的定语从句。ThisisthemostinterestingstoryIhaveeverread.三级句型之间的转换①形容词比较级+thananyother+单数名词Thisbookismoredifficultthananyotherbookhere.=Thisbookisthemostdifficultofall.形容词比较级+thantheother+复数名词Billistallerthantheotherstudentsinhisclass.②同级比较用as...as...,否定式为notas/so...as...Heisastallashisfather.Heisnotastallashisfather.③“more+形容词”与“less+形容词”及“notso/as...as”的互换。Thisquestionismoredifficultthanthatone.=Thatquestionislessdifficultthanthisone.=Thatquestionisn’tsodifficultasthisone.2.数量的表达英语中通常将数字放在单位词的前面，而将表示长、宽、高等的词放在单位词的后面。固定句式为：主语+be+数词+形容词（长、宽、高、深……）。Theboyis1.7meterstall.Thisbuildingis90metershigh.5.Chinahasthebiggestpopulationintheworld.①population是集体名词，没有复数形式，作主语时，其后谓语动词用单数形式。Thepopulationoftheschoolis500.②指人口多少时，一般用large或small来表示。ThepopulationofChinaislargerthanthatofAmerica.③提问“有多少人口”，用what或howlarge,而不用howmany。What’sthepopulationofChina?6.succeedv.成功，做到succeed常与in连用，succeedindoingsth.(成功做某事）Didyousucceedinbookingtheticket?successn.成功Workinghardcanleadtosuccess.successful用作形容词，意思是“成功的”。Lindaisasuccessfuldancerandshedanceswell.【例题】()-Dearfriends,pleasereadeverysentencecarefully.Detailsdecide_____ornot.A.successB.successfulC.succeed6.Thiselephantweighsmanytimesmorethanthispanda.（1）表示两倍用twice,三倍（及以上）用“基数词+times”。（2）倍数的表达：A+be+倍数+as+形容词/副词原级+as+BThisclassroomisthreetimesasbigasthatone.【例题】()Thecartravels_____thetrain.A.twotimeasfastasB.twotimesasfastasC.twotimeasfasteras7.Weshouldprotectwhalesfromwaterpollution.protect保护、保卫protect...from...“保护……免受……的侵害”Everyoneshouldprotecttheenvironmentfrompollution.Unit8HaveyoureadTreasureIslandyet?重点短语:fullofhurryupsciencefictioncountrymusiceversinceoneanotherbelongtofinishdoingsth.fightovermillionsof语言知识归纳：4.现在完成时(1)用法：①表示过去发生的动作对现在造成的影响或结果。Ihavepostedthephotos.我已经把这些照片邮寄了。②表示过去发生的动作及状态一直持续到现在。HehasstudiedEnglishforthreeyears.(2)现在完成时的构成及其变化构成have/has+动词的过去分词。其中have/has为助动词，没有实际意义，可缩写。Mikehas=Mike’stheyhave=they’ve(3)现在完成时常用的时间状语already,just,ever,yet,fortwoyears,since1995,sofar,in