初中英语连词学习中的五大注意要点连词解释一.because,for,since,as,的区别because语气强,表示客观必然原因：Heisabsent,becauseheisill.因为生病，所以他没来。比较:Heisabsent,forheisbusy.（“生病”是“缺席”的必然原因，“忙”不是必然原因。）for语气轻,表示非客观必然的原因,是主观可改变结果的原因,甚至是猜测可能的原因:Hemustbeill,forheisabsent.“缺席”不一定是“生病”，只是交流猜测。for不能放句首,它是并列连词.since,as都是不讲自明的原因,是已知的原因.SinceIamaboy,letmecarrythecase.Asyoudon‘tfeelwell,youhadbetterstayathome.1.我不进去了,因为我爸爸在里面.Iwon‘tgoin.formyfatheristhere.2.昨晚一定是下雨了,因为地很湿.Itmusthaverainedlastnight,forthegroundisweb.3.地是湿的,因为昨晚下雨了.Thegroundiswet,becauseitrainedlastnight.4.因为不高兴,他不想出去了.Hedidn‘twantedtogoout,forhewasunhappy.5.既然你工作忙，你就不必跟我们一道去了。Since/Asyouarebusy,youhadbetternotgowithus.6.他付给我比别人少的钱,因为我是个女的.Hepaidmelessthantheothers,forI‘mfemale.7.他付给我比别人少的钱,仅仅因为我是个女的.Hepaidmelessthantheothers,onlybecauseI‘mfemale.8.既然大家都在这,我们开始开会吧.Sinceeverybodyishere,let‘sbeginourmeeting.二.when,while,as引导时间状语时的异同.when,表示时间点,时间段都可以.如状语是短暂动作时,多用when,是时间段时则三个连词都可以.When/While/AsIwaswalkinginthestreet,Imetafriendofmine.只能用when的句型:1.放句中,主句是进行时,从句是短暂动作,表示这时突然Iwasreadingintheroom,whenagirlshoutedforhelp.我正在房间看书，这时突然听到有一个女孩喊救命！2.从句是短暂动作:WhenIgotup,Iheardthebellring.当我起床的时候，我听见铃响了。只能用while的句型:1.表示对立予盾的对比，这时while相当于but。Iampoorwhileyouarerich.我很穷，你却很富有。Tomisstrong,whileJohnisweak.汤姆很强壮，而约翰很瘦弱。2.表示“趁着还来得及的时候,赶快....趁热打铁.Strikewhileitishot.趁着老师还在教室,你赶快去问他吧.Youshouldgotoasktheteacherwhileheisstillin.只能用as的句型:1.一边....一边...稳定的动作当从句,不稳定的动作当主句他一边洗澡一边吹口哨.Hewhistledashehadabath.我一边看书一边听音乐.IlistenedtomusicasIread.2.正如....所知道,预料的一样....as在此是关系代词,不能用which代替.正如众所周知的一样,地球是圆的.Aseverybodycansee,theearthisround.正如我们预料的那样，他失败了。Hefailedaswehadexpected.正如我们所预料的一样,中国足球队赢了印尼.Aswehadexpected,ChineseFootballTeambeatenIndian3.随着时间的发展,某事变得......Asthirtyyearspassedby,mymother‘shairbecamegray.三十年过去了，妈妈的头发成了银色。Asmodernindustrydevelops,moreandmorewasteproduces.随着现代工业的发展，垃圾制造得越来越多。三.as与like的区别1.表示象...一样时,as接从句,like接短语DoeverythingasIdo.象我一样做。Heis/lookslikehismother.他长得像他妈妈。2.as当介词接短语时,表示作为...不是象...一样的意思.like当动词时,是喜欢的意思,不要搞混为象...WeshouldstudyasLeninstudied.我们应该像列宁那样学习。AsaLeagueMember,Ishouldtakeeverythinginthelead.作为一名团员，我应该起带头作用。三.until,I‘llnotgountilthebellrings.unless条件I‘llnotgounlessyougo.除非你走我才走。肯定句延续Iwaiteduntilhecame我一直等到他来。Helivedhereuntilhewas90.在90岁之前他一直住在这。Ididn‘tleaveuntilhecame.直到他来我才走。短暂notuntil,Iwon‘tstaywithyouunlessyoudrivethedogout.除非你把狗赶跑，否则我不会和你呆在一起。四.and,but,however,yet,顺趋势自然而然发展Hestudiedhardandbecameacollegestudent.逆趋势转折Hestudiedhard,butfailedintheexam.中间有逗号，语气轻用howeverHestudiedhard,however,hefailedintheexam.不能用butHestudiedhard,yethefailedintheexam.Althoughhestudiedhard,yethefailedintheexam.（yet可以与although，though连用，but不能。五.就近原则，对称原则，附加不理原则谓语动词就最近距离主语原则：Eitherheorhisparents(is,are)wrong.Eitheryouorhe(is,are)wrong.(Is,Are)youorhewrong?连词后成分对称原则：Both....and,neither....nor,notonly.....butalso.......Shecan(eithersing,singeither)EnglishsongsorChinesesongs.Shecan(eithersing,singeither)Englishsongsordancewell.with后名词附加不影响谓语原则Heaswellashiswifeanddaughters(like,likes)musicverymuch.Hewithhissons(get,gets)upearlyeveryday.Ibutyou(are,am)wrong.
