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1、连词,Which do you like, football or basketball?,Basketball, but Im not good at it.,什么是连词？,连词是连接单词、短语或句子的一种词。,2.常见连词的基本用法,and (和）表示并列和对称They began to sing and dance.I like baskerball, football and table tennis.both.and.（两者都.)Both you and me are students.,not only .but also 不但.而且，表并列,Jenny can play not
2、only basketball but also velleyball.Not only you but also Jim often comes late.,Neither.nor.（既不.也不.）,Neither you nor he is late for class.Neither you nor I am right. 后面的谓语动词遵循就近原则。,or 或者，还是 ， 表示选择,Is it a pig or a dog?Do you come to school by bus or by bike?Are you happy or sad?,注意：在并列结构中，or通常用于否定句，
3、and 用于肯定句。,I dont like coffee tea. I like coffee tea.,or,and,either.or. 或者.或者. ， 不是.就是.表示选择,Either you or I have to do the housework.You may either stay here or go with us.I will go to Nanning either Monday or Tuesday.,but 但是，表示转折,I like winter, but I dont like snow.Mary likes apples, but her sister
4、 likes bananas.I like the skirt, but its too expensive.,for 因为. 表示原因,He is absent today, for he is ill.I drank a lot of water, for I was thirsty.We stay at home, for its raining outside.,so 因此，所以 表示原因,He got up late, so he missed the bus.I got many gifts, so I was very happy.,because 因为 表示原因,John di
5、dnt come to school yesterday because he was ill.I didnt have dinner because I wasnt hungry.,because 和so不能同时出现在句子中,when 当.的时候 表示时间,Please come and play with me when you are free.When my Mum came back home, I was watching TV.When I was five, I could swim.,after 在.之后 表示事情发生的先后,Ill go swimming with you
6、after I finish my homework.The pig slept after dinner.Before 在.之前 与after构成反义词You must finish your homework before you watch TV.,as soon as 一.就. 表示时间,I will call you as soon as I get home.I will eat an ice cream as soon as I get home.My mother went to sleep as soon as she came back.,if 如果 表示条件,We will go to the zoo if it doesnt rain tomorrow.You will fail the exame if you dont study hard.If I finish my homework, I will go to the cinema.,although/though 尽管/虽然. 表示让步,She eat an apple a day though she doesnt like it.Although she worked hard, she lost the game.,
