在句子中起连接作用,可以使词、短语或句子连接起来形成一定关系的词。
一、连词的用法
并列连词
(1)and:“和,并且”表示并列
(2)both...and: “两者都......”表示连接
(3)or: “或者,还是”表示选择,“否则”
(4)but: “但是”表示转折
(5)so: “所以”表示结果
从属连词
(1)because: “因为”,表示原因,提问时用why
(2)when: “当......时候”,引导时间状语从句
小贴士
1.在并列结构中,and通常用于肯定句,or则用于否定疑问句。
2.在英语中,because 与so不能连用,二者只用其一。
一.用适当的连词完成下列句子
1.I help her ______ she helps me.
2.You can watch it, _______ you can’t touch it.
3.Which is bigger, this one _________ that one?
4.Both my father ________ my mother are doctors.
5.---Why are you late today? ---________ I can’t catch the bus.
6.Lily is ill, _______ she doesn’t go to school.
二.单项选择
1. She stood up ________ went out.
A. and B. or C. so D. but
2. Who is right, Jacky ________ John?
A. and B. but C. so D. or
3. He is clever, ________ he is lazy.
A. but B. and C. so D. or
4. It is raining outside, _______ I have to stay at home.
A. so B. and C. but D. or
5. I help him ______ he helps me. We help each other.
A.but B.and C.or D.so
6. Jack was very hungry ______ he ate all the cakes.
A.and B.but C.so D.or
7. Hurry up, ______ we’ll be late for the concert.
A.and B.but C.so D.or
8. He got up late this morning, ______he was late for school.
A.so B.but C.while D.yet
9. He has no brothers _______ sisters.
A.and B.but C.or D.so