比較and和or
1) 并列結構中,or通常用于否定句,and用于肯定句。
2) 但有時and 也可用于否定句。請注意其不同特點:
There is no air or water in the moon.
There is no air and no water on the moon.
在否定中并列結構用or 連接,但含有兩個否定詞的句子實際被看作是肯定結構,因此要用and。
典型例題
---I dont like chicken ___ fish.
---I dont like chicken, ___ I like fish very much.
A. and; and B. and; but C. or; but D. or;and
答案C。否定句中表并列用or, but 表轉折。
判斷改錯:
We will die without air and water.
We cant live without air or water.
We will die without air or water.
We cant live without air and water.