《英语连词用法》PPT课件.ppt

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1、连 词conjunction,小组成员：田焜鹏，韦栋，明谣,连词是一种虚词，它不能独立担任句子成分。用来连接词，短语，从句与句子。,连词主要可分为两类：并列连词从属连词,并列连词表示词，短语，从句或句子之间具有并列关系。可以表示并列关系，转折关系，和因果关系。,and(和)both and（和,两者都）or（或者）neither nor（既不也不）not only but also(不但 而且)as well as(和,也,除外,而且),1.表示并列关系的连词：,as well(也,而且,)用于句末.,1.He is a scientist,but he is a poet as well.,

2、2.He is a scientist as well as a poet.,4.Both New York and London have traffic problems.,3.Are they coming as well?,2.表示转折关系的连词:but while(而,虽然)yet(可是)however(而)Somebody borrowed my pen,but I dont remember who.He said he was our friend,yet he would help us.,4.表示因果关系的连词,so for thus(因此)therefore（因此）con

3、sequently（因而，所以）1.The child has a bad cough,so his mother take him to the doctor.2.You are supposed to get rid of carelessness,for it often leads to serious errors.注意:for通常不能用于句首，也不能单独使用。,二.从属连词是用来引导连接主句和从句的连词。分为引导名词性从句的连词和引导状语 从句的连词。（分为连接代词和连接副词）,(1).that,whether,if 不充当成分.,(2).连接代词 who,whom,which,w

4、hat 充当主,宾,定,表语等.,(3).连接副词 when,where,how,why 状语.,1.引导名词性从句的连词,（1）That，whether，if不充当句子成分的。其 中that不仅没有充当句子成分，而且没有词义，在句子中只起连接作用。而if，whether虽然不充当句子成分，但有词义，表示“是否”。如He replied that he was going by train.I wonder if its large enough.I worry about whether I hurt her feelings.,（2）连接代词who，whom，which，what充当主，宾

5、，定，表语等。The boys who are playing football are from Class One.（充当主语）He is not what he used to be.（充当表语）Which team has won the game is not known yet.（充当定语）He asked whom I borrowed the money from.（充当宾语）(3).连接副词 when,where,how,why,2.引导状语从句的连词,(1).时间:when,while,as 当时 as+瞬间,延续性动词“一边一边”since,till/until,as s

6、oon as(一就),the moment/instant(一就),Dont talk while you are eating.Shes been playing tennis since she was eight.The moment I finish Ill give you a call.,(2).原因:as because for since,For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,wherever,anywhereIll take you anywhere yo

7、u like.,(4).条件:if,unless=if not,so/as long as,suppose(that)假使 Do you mind if I open the window?Dont come unless I telephone.注意：在条件状语从句中，通常要用一般现在时表示将来意义，而不能直接使用将来时态。不过，有时条件的if后可能用will,但那不是表示将来时态，而是表示意愿或委婉的请求。如：If you will sit down for a few moments,Ill tell the manager you are here.,(5).让步:though/alt

8、hough不与but连用.as(尽管),even if/though(即使)however(无论怎样),whatever no matter how/who/whichAlthough they are twins,they look entirely different.Whoever you are,you cant pass this way.Whenever I see him I speak to him.,（6）.结果:So.that,such.thatI went to the lecture so early that I got a good seat.（7）.目的:so that,in order thatHe raised his voice so that everyone could hear.（8）.方式：as（按照）,as if,as thoughWhy didnt you catch the last bus as I told you to.,THANK YOU！,