3、 had better (not) do sth.　 最好(不)做某事

2、help sb. (to) do sth/ with sth.帮助某人作某事

1、一看二听三使役

see/ hear/ feel/ notice/ look at /listen to sb. do sth.

看见/听见/感觉/注意某人作某事

make /let /have sb. do sth.　 使/让某人做某事

18、keep / stop/ prevent sb. from doing sth.

阻止某人作某事

17、be/get used to doing sth.　 习惯作某事

16、prefer doing sth. to doing sth. 喜欢…胜过…

15、look forward to doing.　 盼望做某事

14、finish doing sth.　 作完某时

13、be busy doing/ with sth. 忙于作某事

12、spend …(in) doing sth.　 花时间作某时