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1、连词,连词,word,word,phrase,phrase,sentence,sentence,连词,连词,连词的作用：把词与词、短语与短语、句子与句子连接起来。它不能在句中单独作句子成分。,连词按其性质可分为：从属连词并列连词,联合,转折,选择,因果,（1）表示联合关系，联合的双方是对等的，意义上趋向一致。常用连词有：and “和”both.and “两者都”neither.n or “既不也不”n ot onl y.but a lso “不但而且”as well as “也”,Eg:我喜欢苹果和香蕉。I like apples and bananas.I like both apples
2、and bananas.I like not only apples but also bananas.我不喜欢苹果和香蕉。I like neither apples nor bananas.,Eg:你和Tom都是我的好朋友。You and Tom are my good friends.Both you and Tom are my good friends.Not only you but also Tom is my good friend.你和Tom都不是我的好朋友。Neither you nor Tom is my good friend.,就近原则,就近原则,那些学生和她都喜欢音乐
3、。The students as well as she music.,like,（2）表示转折关系，连接的双方构成对比，意义上有转折。常用连词有buteg：You can watch TV, but you must finish your homework first.,（3）表示选择关系的连词，连接的双方只取其一。常用连词有or “或者”either.or “或者或者”,eg：你今天或明天可以去北京。You can go to Beijing either today or tomorrow. You can go to Beijing today or tomorrow. 你必须早点起
4、床，否则你就会迟到。 You must get up early or you will be late.,Eg:或者你或者他是中国人。Either you or he is Chinese.或者他或者你是中国人。Either he or you are Chinese.,就近原则,eitheror,小试牛刀,1._Lily_Lucy can go with you,because one of them should stay at home.2._Lily_Lucy can go with you, because they should do their homework tonight
5、. 3._Lily_Lucy can go with you, _they should finish their homework at first.,Either,or,Neither,nor,Both,and,but,（4）表示因果关系，连接的双方，互为因果，或者前因后果，或者前果后因。常用的连词有： for “因为” so “所以”,+原因,+结果,Eg:一定已经下过雨了，因为地面是湿的。It must have rained, for the ground is wet.刚才下雨了，所以地面湿了。It rained just now,so the ground is wet.,例1：Come tomorrow, I will give it to you.Aor Band CthoughDif提示：and在此处解释为“那么”，表示递进关系。,例5：The teacher his students likes football.Aand Bas well as Cand alsoDalso提示：as well as 连接两个主语用靠前原则。,The end!Good bye!,