新教材英语专题15 连词（二）

小升初语法第15讲：连词（二）连词（Conjunction）是用来连接词与词、词组与词组或句子与句子，表示某种逻辑关系的虚词。连词表示并列、转折、选择、因果等关系。如：“Youandme.你和我。”“和”就是连词，表示并列。“Youorme.你或者我。”“或者”也是连词，表示选择。连词是一种虚词，不能独立担任句子成分，起前后连接作用，类似桥梁。连词主要分为并列连词和从属连词。【知识点】从属连词从属连词是用来连接从句和主句的连词。从属连词后面连接的句子是从句，另一个句子是主句。常用的从属连词有when,before,after,assoonas,because,if,though,although等。按从属连词引导的从句将其分为以下四类。引导时间状语从句的从属连词when“当.....时”Iwasasleepwhenyousentmethemessage.你给我发消息时，我睡着了。as“正当.....时”AsIgotintotheclassroom,theteacherleft.我进教室时，老师离开了。while“在.....同时”Lisacalledwhilehermomwascooking.丽萨打电话时她妈妈正在做饭。before“在.....之前”Heknockedthedoorbeforehecamein.他进来之前敲了门。after“在.....之后”Aftershearrivedhome,itbegantorain.她到家之后开始下雨了。引导原因状语从句的从属连词because“因为”Ididn’tfinishmyhomeworklastnightbecauseIwasillthen.我昨晚没完成作业是因我生病了。since“因为，既然”Sinceyouarebusy,I’lldothecookingtoday.既然你忙，今天我来做饭吧。as“因为，由于”Asitisraininghard,we’dbetterstayinside.由于下大雨，我们最好待在室内。引导条件状语从句的从属连词if“如果”IfIamateacher,Iwillmakefriendswithmystudents.如果我是一个老师，我会跟我的学生交朋友。unless“除非”Iwon’tgotothepartyunlessyougowithme.我不会参加那个聚会，除非你陪我去。引导让步状语从句的从属连词although/though“虽然，尽管”Although/Thoughitwasrainingheavily,hestillarrivedontime.虽然天下大雨，他还是准时到达。★though（虽然）与but（但是）不能连用Thoughhewastired，hestillworkedhard.

虽然他累了，但他仍然努力工作。

=Hewastired，buthestillworkedhard.=他很累，但他仍然努力工作。eventhough/evenif“即使”Hewillnottellthesecreteventhough/ifheknowsit.即使他知道那个秘密，他也不会说的。✮对于使用连词的句子来说，连词前后的语法必须同义。Iwenttotheparkandplayfootball.（×）Iwenttotheparkandplayedfootball.（√）✮在一般情况下，and多用于肯定句，而or多用于否定或一般疑问句。Ihavebrothersandsisters.（肯定句）Ihaven’tbrothersorsisters.（否定句）Doyouhavebrothersorsisters?（疑问句）✮for是并列连词，不能置于句首，只能将其放在两个分句中间。IwasabsentyesterdayforIwasill.I

went

totheparkand

played

football.【考题精练】单项选择。()1.________itwasearly,sheturnedofftheradioandwenttobed.A.BecauseB.ThoughC.SinceD.As()2.Whichshirtismoreexpensive,thewhiteone________thegreenone?A.andB.orC.butD.so()3.Workhard,________you’lllearnEnglishwell.A.andB.butC.forD.or()4.Youmaygo________youcleantheclassroom.A.beforeB.becauseC.assoonasD.after()5.Heisateacher________Iamafarmer.A.orB.soC.butD.while()6.Ilikeautumn________Icanhavealotoffruit.A.butB.ifC.thoughD.because()7.________Jim________Katehascome.Idon’tknowwhentheywillcome.A.Both…andB.Notonly….butalsoC.Neither….norD.either…or()8.He’sathomethesedays.Youmaycome________today________tomorrow.A.either…orB.both….andC.notonly…butalsoD.neither…nor()9.Mygrandmaisold________strong.A.andB.orC.butD.so()10.Theboyisclever,________,heoftenmakesmistakes.A.andB.howeverC.whenD.or()11.You’dbetterputonmoreclothes,________it’sverycoldoutside.A.forB.andC.becauseofD.or()12.________Iwentintotheclassroom,,thestudentsweretalkingaboutthefilm.A.WhileB.AfterC.WhenD.Before()13.We’llgobacktothefields________thesnowstops.A.assoonasB.becauseC.butD.and()14.Theplaneflewsohigh________itlookedverysmall.A.thatB.whyC.whetherD./()15.Ididn’tgetup________Fathercamebackfromthefactory.A.whenB.untilC.whileD.because()16.Idon’tknow________ornotwe’llhaveanexamtomorrow.A.ifB.whenC.whetherD.thatif()17.Pleasespeakloudly________Icanhearalittlebetter.A.thoughB.sothatC.thatD.while()18.Pleasespeakloudly________Icanhearalittlebetter.A.thoughB.sothatC.suchthatD.as()19.Ringmeup________youcometomyhouse.A.thoughB.asC.beforeD.than()20.Morepeoplecame________Iexpected.A.asifB.sothatC.sinceD.than()21.Youmustdo________Itoldyou.A.afterB.beforeC.whereD.as()22.ClassOneis________large________ClassTwo.A.so,thatB.as,asC.such,thatD.so,as()23.Theywillbethankfulfor________youhavedone.A.whatB.thatC.whichD.who()24.Iwillwritetoyou________Igetthere.A.whileB.assoonasC.asD.since()25.________heisold,hecanwalkveryfast.A.IfB.AlthoughC.SinceD.Because()26.We’llgotovisittheGreatWall________itrainstomorrow.A.sinceB.assoonasC.whenD.unless()27.Youmostgetupearlytomorrow,________Iwillgotherealone.A.orB.andC.yetD.for()28.Itwasraininghard,________,the