《英语连词用法》PPT课件.ppt
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.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）consequently（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,what 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，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 soon 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 you 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/although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！,
