八年级英语下册知识点总结整理

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精品文档.Unit1What’sthematter?一、基础知识1.What’sthematter?怎么啦?出什么事情了?【解析】matter/'mætə(r))/n.问题;事情What’sthematterwithyou?=What’sthetroublewithyou?=What’swrongwithyou?你怎么了?【注】:matter和trouble为名词,其前可加the或形容词性物主代词,wrong是adj.不能加the【用法】用于询问某人有什么病或某人遇到什么麻烦、问题其后跟询问对象时,与介词with连用。即:What’sthematterwithsb.?=What’syourtrouble?=What’sup?=Whathappenstosb.?—What’sthematterwithyou?—Ihaveabadcold.2.Ihadacold.我感冒了。haveacold=catchacold=havetheflu感冒haveafever发烧haveacough咳嗽haveastomachache胃疼,肚子疼haveatoothache牙疼haveaheadache头疼3.身体部位+ache(疼痛)构成新的复合词stomach+ache=stomachachehead+ache=headachetooth+ache=toothacheback+ache=backache后背痛4.muchtoo+形容词,意为太......,toomuch+名词,意为很多,大量。5.enough【形容、副词】足够的/地,enough放在名前后,形副后。goodenough足够好,enoughmoney=muchmoney6.liedown躺下,lie躺,躺着,过去式lay;lie说谎,过去式lied7.maybe“或许”,常用于句首,表示可能性,后加句子。Maybeyouareright.maybe,是情态动词+be的结构,意为“可能,也许”,后加名词、代词或形容词。Hemaybeangry.soundlike+名词代词和从句:Itsoundslikeyoudon’tknowthetruth.Itsoundslikeagoodidea.sound+形容词,“听起来,好像”,Themusicsoundsnice.9.need需要,实义动词need+名词,需要某物;needtodosth.需要做某事,主语通常是人,表示人主动的动作:Youneedtolistencarefullyduringclass.needdoingsth.主语通常是物,表示被动的动作:Yourdirtyclothesneedwashing.10.getoff(thebus)下(公交车)geton上车11.agree同意,赞同;agreewithsth.同意某事如:Iagreewiththatidea.agreetosb.同意某人的意见如:IagreetoLiLei.12.trouble问题,麻烦;beintrouble遇到麻烦,maketrouble制造麻烦,havetrouble(in)doingsth.=havedifficulties(in)doingsth做......有麻烦。13.rightaway=rightnow=atonce,意为马上。14.advice[不可数名词]劝告,建议,向…征求意见,givesb.adviceonsth.就某事给某人建议;advise[动词]advisesb.todosth.建议某人做某事advisesb.doingsth.【复习】exercise练习、锻炼当exercise意为“练习”时,为可数名词即可加s当exercise意为“锻炼”时,为不可数名词即不加s16.hurt及物动词,使……疼痛,……受伤,Hehurthislegwhileexercising.不及物动词,……(部位)疼。Hisleghurtbadly.clean【动词】打扫,cleantheclassroom打扫教室,【形容词】干净的,cleaner意为清洁工。18.hit(用手或器具)打;击打Theboyhitthedogwithastone.hitsb.onthehead/nose/back打某人的头、鼻子、后背,on用在所打较硬的部位;hitsb.intheface/eye/stomach打某人的脸、眼睛、肚子,in用在所打较软的部位。精品文档.beusedtosth./doingsth.习惯于、适应了……、做某事,强调状态;Hisgrandpawasusedtocountrylife.Maryisnotusedtogettingupearlyinthemorning.get/becomeusedtosth./doingsth.“变得习惯,逐渐适应……”强调过程、动作:It’sdifficultforonetogetusedtoanothercountry’shabit.20.【复习】free[形容词]空闲的freetime;免费的thedrinkisforfree;自由的Iwanttobecomeafreebird.free【动词】使……解脱,得到自由:Hecouldnotfreehisarm.runout用完,用尽Whenhiswaterrunout,heknewthathewouldhavetodosomethingtosavehisownlife.物sth.runout.某物用尽了。人sb.runoutofsth.人用尽了某物。Herunoutofallhismoneylastnight.22.risk(sb.)todosth.冒险去做某事takearisk=takerisks冒险23.theimportanceof(doing)sth.(做)某事的重要性Westudentsshouldknowtheimportanceof(learning)English.importancen.重要(性),importantadj.重要的,unimportantadj.不重要的decision【名词】决定;抉择;makeadecision做决定;makeadecisiontodosth.=decidetodosth.。25.beinthecontrolof…掌管,管理Theheadmasterisinthecontrolofthisnewschool.beoutofcontrol无法控制,无法管理beundercontrol被控制住,在控制之中26.【复习】mind意为介意,minddoingsth.介意做某事,Wouldyoumindmyopeningthewindow?27.giveup(doing)sth.放弃(做)某事,giveup(playing)computergames;giveup后可接名词、代词和动词ing形式,也可不接,如:Nevergiveupeasily.二、重点语法【反身代词】英语中共有八个反身代词,在使用时应注意和它所指的相应的对象在人称、性别、数上保持一致。数人称第一人称第二人称第三人称单数myselfyourselfhimselfherselfitself复数ourselvesyourselvesthemselves【用法】1.可用作宾语,指的是宾语和主语表示同一个或同一些的人或事物。如:Mariaboughtherselfascarf.Wemustlookafterourselvesverywell.2.可用作表语,指的是表语和主语表示同一个或同一些人或事物。如:Sheisn’tquiteherselftoday.3.可用作主语或宾语的同位语,常用来加强语气。如:SheherselfwillflytoLondontomorrow.Imetthewriterhimselflastweek.4.用在某些固定短语当中。lookafteroneself/takecareofoneself照顾自己teachoneselfsth./learnsth.byoneself自学enjoyoneself玩得高兴,过得愉快helponeselftosth请自用……(随便吃/喝些……).hurtoneself摔伤自己saytooneself自言自语leavesb.byoneself把某人单独留下buyoneselfsth.给自己买……东西introduceoneself介绍……自己【提醒】1.反身代词不能单独做主语,但可以做主语的同位语,起强调作用。如:我自己能完成作业。(误)Myselfcanfinishmyhomework.(正)Imyselfcanfinishmyhomework./Icanfinishmyhomeworkmyself.精品文档.2.反身代词表示“某人自己”不能表示“某人的东西”,因为它没有所有格的形式。表达“某人自己的(东西)”时,须要用one’sown.如:我用我自己的蜡笔画画。(误)I’mdrawingwithmyselfcrayons.(正)I’mdrawingwithmyowncrayons.Unit2I’llhelptocleanupthecityparks1.sick生病的,有病的;可在句中作表语Marycouldnotcomebecausesheissick.也可作定语asickchild【区别ill】ill与sick同义;但是只在句中做表语,不做定语。Marycouldnotcomebecausesheisill.2.cheer(sb.)up(让某人)变得高兴;振奋起来Thegoodnewscheeredupeveryoneinourclass.3.giveout分发;散发,相当于handout,Theteacherisgivingout/handingoutthetestpapers.givesth.outtosb.意为把某物分发给某人。4.volunteer【名词】志愿者【动词】义务做,自愿做(某事)volunteertodosth.自愿做某事,Thegirlscouldvolunteerinanafter-schoolstudyprogram.5.usedtodosth.过去/曾经(常)做某事,表示过去的习惯、动作或状态,并强调现在已经不再存在或发生。Thereusedtobeacinemahere.这里曾有一个照相机。Theytoldmestoriesaboutthepastandhowthingsusedtobe.他们告诉我关于这里过去的故事。6.alone【形容词】独自一人的,无感情色彩:Themusicianenjoyedlivingaloneandwritingsongshimself.lonely(感到)孤独寂寞的,带有很强的感情色彩,可做表语或定语。Thelonelyboyisnotlonelynow.7.careforsb./sth.照顾;照料……care【名词】小心,关心takecareof=lookafter→【动词】careaboutsb./sth.关心,在意某人/事→【形容词】careful仔细的/careless粗心的→【副词】carefully仔细地8.such“这样的,这种,如此”,用于修饰名词such+a/an+形容词+单数名词:suchagoodday多么美好的一天/suchanexcitingmatch多么精彩的比赛such+形容词+复数名词/不可数名词:suchimportantdecisions多么重要的建议suchdeliciousfood多么美味的食物如果名词前被many,much,few,little修饰时,只能用so,而不用such:somanysickchildren/solittletime9.tryoutfor…参加…选拔,争取成为…ThirtyfootballplayerstriedoutfortheBestPlayeroftheyear.tryout试用,试验10.journey【名词】(尤指长途)旅行,行程;trip【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