for fear that,in case,lest引导目的状语从句什么有区别吗我的语法书上出现这样两个例子.不知道有什么用法上的区别:The boy hid himself behind the tree in case/for fear that his father should see him.Take your rainco

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for fear that,in case,lest引导目的状语从句什么有区别吗
我的语法书上出现这样两个例子.不知道有什么用法上的区别:
The boy hid himself behind the tree in case/for fear that his father should see him.
Take your raincoat in case/lest it should rain.

明显没有任何区别.可以混用.