be afraid of doing sth和 be afraidbe afraid of doing sth和 be afraid to do sth区别

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be afraid of doing sth和 be afraid
be afraid of doing sth和 be afraid to do sth区别

be afraid to do sth 表示“怕而不敢为”
be afraid of doing sth 表示“害怕(当心)某种结果的发生”
如:
He is afraid to climb the tree,because he is afraid of falling off it.
他不敢爬树,因为怕从树上掉下来