题目内容
1．Hurry up，or you will pay more money for the trip．（同义词）If youdon't hurry，you will pay more money for the trip．
分析 赶快，否则你就要花更多的钱去旅行．
如果你不快点，你就要花更多的钱去旅行．
解答 答案：if；don't．结合句意赶快，否则你就要花更多的钱去旅行．也就是如果你不快点，你就要花更多的钱去旅行．用if引导的条件状语从句，遵循主将从现的规则，从句用一般现在时，主语you借助于do构成否定，故答案是if；don't．
点评 使句，+and+陈述句：在这里祈使句相当于if 引导的条件状语从句（但此时去掉and）．
Give blood （ if you can ）and many lives will be saved．
还可以用简短的形式表示，即省略动词．
Give me one more hour，and I'll get the work finished．（祈使句）
═One more hour，and I'll get the work finished．（名词短语）
═If you give me one more hour，I'll get the work finished．（if条件句）
═If I am given one more hour，I'll get the work finished．
═Given one more hour，I'll get the work finished．
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46．People's Republic of China （中华人民共和国）was found on October 1，1949．
47．Yesterday was my mother'sfortieth birthday．
48．Tom always arrives at schoolearlyin his class．
49．Our room is twice as big astheirs．
50．Knowledge makes one laugh，butwealth makes one dance．
| wealthy they found forty early |
47．Yesterday was my mother'sfortieth birthday．
48．Tom always arrives at schoolearlyin his class．
49．Our room is twice as big astheirs．
50．Knowledge makes one laugh，butwealth makes one dance．