英语自学网 发表于 2016-8-13 23:47:12

连词比较and和or

  20.2 比较and和or
   1) 并列结构中,or通常用于否定句,and用于肯定句。
   2) 但有时and 也可用于否定句。请注意其不同特点:
     There is no air or water in the moon.
     There is no air and no water on the moon.
   在否定中并列结构用or 连接,但含有两个否定词的句子实际被看作是肯定结构,因此要用and。
  典型例题
   ---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 表转折。
  判断改错:
    (错) We will die without air and water.
    (错) We can't live without air or water.
    (对) We will die without air or water.
    (对) We can't live without air and water.

                                  
                                 
页: [1]
查看完整版本: 连词比较and和or