華閱文章網一、動詞開頭的句子形式
不定式和動詞ING做主語的區別：
A:
1、動名詞做主語往往表示普通的、一般的行為，不定式做主語常表示某次具體的行為。例如：
Collecting information about children's health is his job. 收集有關兒童健康的信息是他的工作。
It's necessary to discuss the problem with an experienced teacher. 與一位有經驗的老師討論這個問題是有必要的。
2、常用不定式做主語的句型有：
(1)It's difficult (important, necessary) for sb. to do
(2)It's kind (good, friendly, polite, careless, rude, cruel, clever, foolish, brave) of sb. to do.
3、常用動名詞做主語的句型有：
It's no good (use, fun) doing.
It's (a) waste of time one's doing.
ps:“collecting the information about childrens health”只是暫時行為，又不是一直都在收集。