1.Is it true(that when)the rain stops,it will be as hot as in the summer here?为什么不 用whenever?2.It requires与It is require
问题描述：
1.Is it true(that when)the rain stops,it will be as hot as in the summer here?为什么不 用whenever?2.It requires与It is required哪个是常见用法
答
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1.whenever不能等于when.前者表示“无论何时,都.”,是无条件的.而when 语气较弱,是有条件的.（如本题的隐含条件是某个特定的季节,如秋天）
2.It is required 较常用,后通常跟that从句.其中it为形式主语,真正的主语是that从句.