1. be worth doing 值得被……（主动形式表被动含义）
The book is well worth reading.
这本书很值得被读。
2. be busy doing 正忙着做……
I am busy preparing for the coming final exam.
我正忙着为即将到来的期末考试做准备。
3. too…to do... 太……而不能……
The boy is too young to go to school.
这个男孩太小了以至于不能去上学。
4. so+adj./adv. as to do 如此……以致于......
She worked so hard as to pass all her tests.
她学习如此努力以致于通过了所有考试。
5. It takes sb. some time to do sth. 做某事花费某人......时间
It takes me 15 minutes to go to school every day.
每天上学花费我15分钟的时间。
6. sb.spends some time（in）doing sth. 某人花……时间做某事
I spend 20 minutes in doing my homework every day.
我每天花20分钟写作业。
7. It is+adj.+for sb. to do sth. 对某人来说，做某事是……的
It is important for zookeepers to protect the pandas.
对动物园管理员来说，保护动物是重要的。
8. wish sb.+n./abj 祝愿某人……
I wish you good luck.
祝你好运。
9. sb. have some difficulty/trouble（in）doing sth. 某人做某事有困难
He has some difficfty in studying English.
他在学英语方面有困难。
10. sb.can do nothing but do sth.=have no choice but to do 只好/只能......
I can do nothing but tell him the truth.
我只好告诉他事实。
11. It is said that… 据说……
It is said that you are going abroad.
据说你要出国。
12. not…until… 直到……才......
I didn’t go to sleep until my parents came back.
知道我父母回来我才上床睡觉。
13. 主语+find/consider/think+it+形容词或名词+不定式
I find it interesting to see this film.
我发现看这部电影和有趣。
14. so+adj./adv.+that 如此……以致于......
such+n.+that…如此……以致于......
The lady is so happy that she can’t say a word.
这位女士如此高兴以至于说不出话来。
She is such a kind girl that everyone likes her in her class.
她是如此善良的女孩以致于班上每个人都喜欢她。
15. why not do sth 为什么不做……呢？
why not go over your notebook？
为什么不复习一下笔记呢？
16. It's time to do sth. 到做某事的时间了
It's time to clean the classroom.
该打扫教室了。
17. sb. devote oneself/one's life to sth./doing. 致力于做某事
She devoted herself to teaching English.
她致力于教英语。
18. It is/ was+被强调部分+that/who…
It is this boy who broke the window.
是这个男孩打破了窗户。
19. I don't think/believee/suppose/expect+that 从句否定前移
I don’t think he will win the game.
我认为他不会赢得比赛。
20. would like to do 想要做某事
feel like doing 想要做某事
had better not do sth 最好（不）做某事
would rather do 宁愿做……
I would like to drink some water.
我想喝水。
21. It is no use doing sth. 做某事没有用处
It is no use watching too much TV.
看太多电视是没用的。
22. 主语+have no idea+从句 不知道……
I have no idea when he will come back.
我不知道他什么时候回来。
23. no matter when/where/what/who/whether/how... 无论......
No matter who you are， you must obey the law.
无论你是谁，都必须遵守法律。
24. used to do 过去常常做某事
be used to doing 习惯于做某事
I used to make a joke on him.
我过去常常开他玩笑。
I have been used to getting up early.
我已经习惯了早起。
25. It is possible/probable/likely that… 可能……
It’s possible but not likely/probable that he’ll come here next month.
他下月有可能来这里，但是不是很肯定。