高考英语语法考点复习课件介词和连词

连词并列连词表示词，短语，从句或句子之间具有并列关系。可以表示平行关系，转折关系，选择关系和因果关系。and(和)both…and（和,两者都）neither…nor（既不…也不…）notonly…butalso(不但…而且…)aswellas(和,也,除…外,而且)1.表示___________的连词：aswell(也,而且,)用于句末.平行关系他是一个科学家,但也是一个诗人.Heisascientist,butheisapoetaswell.Heisascientistaswellasapoet.他是一个科学家也是一个诗人.2.表示________的连词:butwhile(而,虽然)yet(可是)(3)我的哥哥是工人而我是医生MybrotherisaworkerwhileIamadoctor.转折关系3.表示______________的连词or(或,否则)4.表示_________________的连词soforbecauseassince(5)动作快点，否则赶不上公车了Hurryup,oryouwillfailtocatchthebus.(6)我的车坏了,所以我迟到了Iwaslatebecausemycarbrokedown.选择关系因果关系1.Heseldomansweredquestionsforfear__________hemightbewrong.2.Parentsarebusypeople.Iftheyareworking,theyareusuallynotathome_____theirchildrenreturnfromschool.3.__________peopleliketoeatisvariousfromculturetoculture.4.________thepolicethoughthewasthemostlikelyone,sincetheyhadnoexactproofaboutit,theycouldnotarresthim.thatuntilWhatAlthough归纳总结考点1：当while,when,as引导时间状语从句时的区别：①while引导的状语从句中动词必须是持续性。谓语动词多为进行时，或状态动词的一般时。②when除可指一段时间外，还可用来指一点时间，等于“atthetime”。③as常可与when，while通用，但强调“一边…一边…”。1._______Igotothestation,thetrainhadalreadyleft.2.Hesangmerrily________hewasworking.Whenwhile考点②till、until均表示“到……时候止”，肯定句中的谓语必须是延续性动作。如：3我昨天一直工作到晚上.若主句谓语是终止性动词，则主句要用否定形式，意为动作“到……才……”开始发生。如：4.他直到妈妈回来才睡觉注意：till和until通常情况下可以互换，只是在句首时until比till更常用。YesterdayIworkedtill/untilmidnight.Hedidn’tgotosleepuntilhismothercameback.Although/though引导的从句用正常语序.As引导的从句用倒装语序,即把as从句中的表语,状语或动词原形提至主语前.考点③though、although均引导让步状语从句，意为“虽然……”，although较正式，though最常用。如：5.尽管他很累了，他还是继续工作Althoughhewastired,hestillwentonworking.尽管天气冷,可他仍继续工作.Thoughitwascold,hewentonworking.=Coldasitwas,hewentonworking.考点④hardly…when、nosooner…than不能表示将来的事，其主句的谓语动词一般用过去完成时，从句用过去时。若将hardly或nosooner放在句首，句子要倒装。如：6.____________hearrived_______hewentawayagain.Nosoonerhadthan考点⑤某些表示时间的名词（词组）也可用作从属连词。它们是：themoment,theminute,theinstant,theday,thetime,thefirst(second,third…)time,thespring(summer,autumn,winter),every(each,next,any)time(day),bythetime,都可引导时间状语从句。如：7.春天他一回来他妈妈就去世了8.他一到就给我打电话.Hismotherdiedthespringhecameback.Hecalledmethemomenthearrived.训练案课中训练与检测1.—Iwonderhowmuchyouchargeforyourservices.—Thefirsttwoarefree

thethirdcosts$30.2.Johnplaysbasketballwell,_____hisfavoritesportisbadminton.3.________thepolicethoughthewasthemostlikelyone,sincetheyhadnoexactproofaboutit,theycouldnotarresthim.4.Owenwouldn’teatanything______hecookedithimself5.Themedicineworksmoreeffectively______youdrinksomehotwateraftertakingit.butbutAlthoughunlessif6.Theroadconditionsthereturnedouttobeverygood，________wasmorethanwecouldexpect.7.Ithoughtwe’dbelatefortheconcert，_____________weendedupgettingthereaheadoftime.8.Everythingwasperfectforthepicnic___________theweather.9.Thereweresomechairsleftover__________everyonehadsatdown.whichbutafterexceptfor从属连词是连接_____________的词，主要有定语从句中的___________,名词性从句中的__________及状语从句中的____________.所以首先要判断出主句和从句，从属连词便位于从句前，再根据从句的性质及它和主句的关系确定该用哪一个从属连词。1.引导名词性从句的连词(1).that,whether,if不充当成分.(2).连接代词who,whom,which,what充当主,宾,定,表语等.(3).连接副词when,where,how,why状语.主从句关系词连接词引导词2.引导状语从句的连词(1).时间:when,while,as当…时when+瞬间,延续性动词while+延续性动词as+瞬间,延续性动词“一边…一边”till/until,once,assoonas(一…就),themoment/instant(一…就),nosooner…thanhardly…whenthemoment(2).原因:asbecauseforsinceFor语气最弱,引导的分句放在句末.Because语气最强,句首,句末均可.As(因为)置于句首.Since(既然)通常置于句首.(3).地点:where,wherevernowthat(既然)consideringthat(5).让步:though/although不与but连用.as(尽管),evenif/though(即使)however(无论怎样),whatevernomatterhow/who/which(4).条件:if,unless=if…not,so/aslongassuppose(that)假使onconditionthat如果provided/providing(that)倘使,如果尽管你读得快,你也不能在三天内读