8.11 begin(start)doing/to do |
begin/start to do sth. begin/start doing sth. 1)谈及一项长期活动或开始一种习惯时,使用doing. How old were you when you first started playing the piano?你几岁时开始弹钢琴? 2)begin,start用进行时时,后面动词用不定式to do I was beginning to get angry。我开始生起气来。 3)在attempt,intend,begin,start 后接know,understand,realize这类动词时,常用不定式to do。 I begin to understand the truth。我开始明白真相。 4)物作主语时 It began to melt. |