Conjunctions Conjunctions 小学生英语语法 1.在句子中用来在句子中用来连接连接词与词、短语与短语或句子词与词、短语与短语或句子与句子与句子的词2.连词在句子中不能单独作句子成分，只能起连连词在句子中不能单独作句子成分，只能起连接作用，接作用，如：1） I study English and Chinese. 2） Does he work at school or in the hospital? 3） I get up early, but my brother gets up late. 4） I am very busy but happy.（我很忙但我很快乐） 1.1.并列连词并列连词连接的单词、短语或句子具有对等关系，连接的单词、短语或句子具有对等关系，就是具有相同的词性、相同的结构和形态就是具有相同的词性、相同的结构和形态2. and（和）（和）, but（但是），（但是）， or（或者）（或者）, for（因为）（因为）, so（所以）（所以）3. …both…and…（（…和和…都都…））, either…or…（（不是…就是…））4. not only…but also…（不仅（不仅…而且而且…）。
如：1） I ate a hamburger, but I’m not full yet. 2） let’s go and play football. 3）I cleaned the house and washed clothes this morning. 4）Are you going to travel by train or by air? 5）Not only Jane but also her parents like cooking. 2. 2. 从属连词从属连词：用来连接：用来连接主句和从句主句和从句 before（（……之前）之前）, , after（（…之后）之后）, when（当（当…时候）时候） because（因为）（因为） if（如果）（如果） as soon as（一（一…就就…）） though（尽管）（尽管）, , although（尽管）（尽管） 如： 1）She didn’t go to school because she was ill. 2）I found her bag after she has left. （她走了以后，我发现了她的书包） 3）He studied hard though he had a fever. 4）I was painting the wall when he called me. （他给我打时，我正在刷墙） 5）If you get tickets, please let me know. （如果您买到票，请告诉我） 根据连词在句子中表示根据连词在句子中表示逻辑关系逻辑关系的不同，也可分为以下四类：的不同，也可分为以下四类：1) 1) 表示表示因果因果关系的：关系的：because, for, so（所以）, since（既然）2) 2) 表示表示平行并列、选择平行并列、选择关系的：关系的：and （和） or（…或…） either…or… （不是…就是…） neither…nor… （既不…也不…） both…and… （…和…都…） not only…but also （不仅…而且…） 3) 3) 表示表示时间时间关系的：关系的：after, before, when，，as soon as4 4））其它常用连词：其它常用连词： 表示表示条件条件关系的：关系的：if 表示表示让步让步的：的：although / though （尽管） 1. 1. 用用“and”“and”连接多个对象时，连接多个对象时，最后两个最后两个对象间用对象间用 “and”“and”连接，连接，前面的其它对象间用逗号。
前面的其它对象间用逗号 Bob entered the room, took off the coat and sat down in the sofa.2. 2. and and 通常用在通常用在肯定句肯定句中，而中，而 or or 通常用在通常用在否定句否定句和和疑问句疑问句中中, , 1）He likes milk and juice. 2）He doesn’t like milk or juice.（在在否定句否定句中表示中表示并列并列）） 3）Which do you like better, apples or pears?（在在疑问句疑问句中表示中表示选择选择））3.3.在同一个句子中，在同一个句子中，不能同时出现不能同时出现 becausebecause 和和 so so 如：Because John was ill, so I took him to the doctor. 应改为：John was ill, so I took him to the doctor. 或： I took him to the doctor because John was ill 4. though / although不能和不能和 but 和连用。
和连用 如：如：Although he is over sixty, but he works as hard as others.改为改为：Although he is over sixty, he works as hard as others. 或：或：He is over sixty, but he works as hard as others.5. “both…and…”（…和…都… / 两者…都…） “not only…but olso…” （不仅…而且…） 意思相近，有时可以通用意思相近，有时可以通用如：如：Both you and he speaks French.（你和他都讲法语） Not only you but also he speaks French.（不但你而且他也讲法语）6. neither … nor … 本身已经表示两者都否定，所以句子不再用否定式本身已经表示两者都否定，所以句子不再用否定式Neither she nor I are interested in ice cream. （她和我都不喜欢冰淇淋） 7. either A or B （或者A或者B）neither A nor B （既不A也不B）not only A but also B （不仅A而且B）① Either you or I am going to the party. (或者你或者我将去晚会)② Neither I nor he has seen the movie.（我和他都没有看过这部电影）③ Not only you but also he speaks French.（不但你而且他也讲法语） 【连接主语【连接主语 时，时，谓语谓语““就近原则就近原则””】】8. and 和和 or 都可以在祈使句中使用都可以在祈使句中使用. “and + 句子句子”通常是通常是比较好比较好的结果，意思是的结果，意思是“…那么就会那么就会”“or + 句子句子”则表示则表示不愉快不理想不愉快不理想的结果，意思是的结果，意思是“…否则就会否则就会” 如：如：Study hard, and your math will be better. （努力学习，那么你的数学成绩将会很好） Study hard, or your math will be worse. （努力学习，否则你的数学成绩将会很差） 1）He is rich. He is unhappy. (but) .2）He broke his left leg. He couldn’t attend the meeting yesterday. (because) .3）Bob entered the room. Bob took off the coat. Bob sat down in the sofa. (and) .4）I am wrong. You are wrong. (neither…nor) .5）It will be fine tomorrow. I’ll visit my English teacher. (if)He is rich but he is unhappyHe couldn’t attend the meeting yesterday, Because he broke his left leg. Bob entered the room, took off the coat and sat down in the sofa.Neither you nor I am right.I’ll visit my English teacher if it is fine tomorrow. 6）I like white boots. My sister white boots. (both…and…) .7）I won’t buy a kite. I won’t buy a balloon. (or) .Both my sister and I like white boots.I won’t buy a kite or a balloon.1）We made a pizza this morning. ___ we didn’t eat it.2）I was tired very much, __ I went to bed early last night.3）Does Rose go to school by bike __ by bus?CBB 4）He will go to Paris ___ his aunt lives there. A. and B. so C. but . D. because5）I’ll call you __ I arrive at the airport. A. and B. but C. as soon as D. if6） Jerry I are interested in the movie. Could you give me one more ticket? A. Both, and B. Either, or C. Neither, nor D. /,or7）_____ it’s raining, the match continues. A. For B. When C. Although D. Because8）Turn off the lights __ you go out.DCACD 9）Mary likes music ___ Tom is found of sports. A. and B. but C. both A and B10）This is my first lesson, __ I don’t know your names. A. and B. but C. so11） Which do you like better, apples __ pears? A. and B. but C. or12） Now we have no time _____ money. A. so B. and C. or13） It’s getting warmer __ warmer. A. and B. but C. orCCCCA 3.3.找出下列句中的错误，并予以订正。
找出下列句中的错误，并予以订正1）Because he was hungry, so he ate two bowls of rice. . .2）Which do you like better, singing and dancing?. .3）Alice is not slim but also beautiful. .4）Both Mom and also Dad are angry with my brother. .5）Though she is little, but she often helps others. .He was hungry, so he ate two bowls of rice.Because he was hungry, he ate two bowls of rice.Which do you like better, singing or dancing?.Alice is not only slim but also beautiful.Both Mom and Dad are angry with my brother.Though she is little, she often helps others. Thank you! Goodbye! 。