be afraid后加什么？
be afraid to do sth.真正的意思是“害怕做某事”,也就是主语对做某事内心感到恐惧；
be afraid of doing sth.表示主语内心里不情愿做某事,也可以说是不希望发生某事,但自己不一定能避免它.
例句
She stayed at home, afraid to show her face.
她待在家里，不敢露面。
She was almost afraid to answer.
她几乎不敢回答。
Now he\'s afraid to come to church.
现在他不敢去教堂做礼拜了。
She was afraid of going mad.
她担心变疯。
Most animals are afraid of fire.
大多数动物怕火。