英语写作中什么时候用非谓语动词开头，举例说说

Question

如题所述

Answer 1

非谓语动词有四种形式， to do , doing ,do, done.
to do 放开头，两种情况：一种是to do 做主语。To study hard is the duty of a students.
一种是做状语，表目的To study hard, he stays up very late.
doing 放开头，也是两种：做主语。Eating healthy food is good for us.
做状语，表伴随状况。Singing and dancing, all the children had a good time.
do 放开头， 一般是祈使句，不过不能算是非谓语形式了。是谓语动词的原形。
done放开头，一般都是状语。Hurt badly, the dog ran away sadly.