比較and和or
2007-01-01 00:00
20.2 比較and和or | ||
? | 1) 并列結(jié)構(gòu)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(jié)構(gòu)用or 連接,但含有兩個否定詞的句子實際被看作是肯定結(jié)構(gòu),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。否定句中表并列用or, but 表轉(zhuǎn)折。 判斷改錯: (錯) We will die without air and water. (錯) We can't live without air or water. (對) We will die without air or water. (對) We can't live without air and water. |