比較and和or

1) 竝列結(jié)搆中，or通常用於否定句，and用於肯定句。

2) 但有時(shí)and 也可用於否定句。請(qǐng)注意其不同特點(diǎn)： There is no air or water in the moon. There is no air and no water on the moon. 在否定中竝列結(jié)搆用or 連接，但含有兩個(gè)否定詞的句子實(shí)際被看作是肯定結(jié)搆，因此要用and。

典型例題 ---I don't like chicken ___ fish.　 ---I don't like chicken, ___ I like fish very much. A. and； and　 B. and； but　C. or； but　D. or；and 答案C。否定句中表竝列用or, but 表轉(zhuǎn)折。

判斷改錯(cuò)： (錯(cuò)) We will die without air and water. (錯(cuò)) We can't live without air or water. (對(duì)) We will die without air or water. (對(duì)) We can't live without air and water.