连 词介绍连词的含义连词是一种虚词，它不能单独做句子成分，只起连接词与词、短语与短语或句子与句子的作用，也没有词形变化。并列连词 表并列关系 and, bothand表转折关系 but, while, yet表选择关系 or, eitheror表因果关系 so, for, then 从属连词 引导状语从句表时间 when, while, before, after, as soon as, since, until表原因 as, because, since表地点 where, wherever 表条件 if, unless, as long as表目的 so that, in order that表让步 although, though, even though表方式 as, as if表比较 asas, than表结果 sothat, suchthat引导宾语从句、主语从句和表语从句 That, whether, if, wh-疑问词并列连词的基本用法AndHe stood up and left the classroom.He went to Beijing and I went to Shanghai last year.BothandBoth you and he are Japanese.I like both basketball and football.OrJohn or I am right.Would you like tea or coffee?ButHe is fifty, but she still looks young.He is tired but happy.Mike came here not for himself but for his son.ForTom went to sleep soon, for he was very tired.The sun has risen, for the birds are singing.Eitheror, neithernorEither you or she is going to the Great Wall.Neither the teacher nor the students like this song.注：用eitheror, neithernor连接两个名词或代词作主语时，谓语动词采用就近原则。Not onlybut alsoNot only you but also your mother is coming.(谓语动词采用就近原则)She learns not only Chinese but also French.从属连词的基本用法1. 引导时间状语从句的从属连词：when, while, as, after, before, since, until, as soon as. 例如：Strike while the iron is hot. 趁热打铁。Lily didnt know it until you told her.2. 引导原因状语从句的从属连词：because, as, since.例如：John didnt go to school yesterday because he was ill.Since everybody is here, lets begin.3. 引导地点状语从句的从属连词：where, whereverPut the book where you found it.4. 引导条件状语从句的从属连词：if, unless, in case, as long as. 例如：If it doesnt rain tomorrow, we will go to the park.You wont learn English well unless you work hard at it.5. 引导目的状语从句的从属连词：so that, in order that. 例如：Speak clearly so that they can understand you.6. 引导让步状语从句的从属连词：though, although, even though. 例如：Although she was tired, she went on working.7. 引导方式状语从句的从属连词：as, as if, as though. 例如：It looks as if it is going to rain.When in Rome, do as the Romans do.(入乡随俗)8. 引导比较状语从句的从属连词：asas, not so/asas, than 例如：You study harder than he does.9. 引导结果状语从句的从属连词：sothat, suchthat 例如：The bus is so full that he cant turn around.It was such a hot day that they went swimming.10. 引导宾语从句、主语从句和表语从句的从属连词：that, if, whether, what, when, why, where, how. 例如：I dont know whether my teacher will come or not.专项练习 连词专项训练 1 - Can you play soccer ? - Yes, I can, I cant play it very well. A. or B. and C. so D. but 2 Its raining outside. Put on more clothes, you may catch a cold. A. and B. but C. or D. though 3 The violin was too expensive, I didnt buy it. A. or B. and C. so D. but 4 Practice speaking English every day, youll be able to speak English fluently. A. or B. and C. but D. while 5 I will not go to the zoo tomorrow it rains. A. if B. unless C. until D. while 6 This problem was difficult few students worked it out. A. as / as B. so / that C. too / to D. so / as 7 He cannot speak English he has learned English for almost ten years. A. though B. if C. but D. since 8 Its not easy to learn English well. Ill try my best, . A. but B. too C. though D. although 9 my father I am interested in sports. A. Both / and B. Neither / nor C. Either / or D. From / to 10 Tom his brother like Chinese food. A. Both / and B. Neither / nor C. Either / or D. From / to 11Ill go to bed early tonight I can get up early tomorrow moring. A. as for B. because