PETS－2语法讲解(24)

be afraid doing/to do
　　be afraid to do　不敢，胆怯去做某事，是主观上的原因不去做，意为"怕"；
　　be afraid of doing　担心出现doing的状况、结果。 doing 是客观上造成的，意为"生怕，恐怕"。
　　She was afraid to step further in grass because she was afraid of being bitten by a snake.
　　她生怕被蛇咬着，而不敢在草丛中再走一步。
　　She was afraid to wake her husband.
　　她不敢去叫醒她丈夫。
　　She was afraid of waking her husband.
　　她生怕吵醒她丈夫。