14. be surprised to do sth 对做某事感到惊奇

　　be surprised at sth 对某事感到惊奇

　　This is nothing to be surprised at.

　　I'd be surprised to see him on such an occasion.

　　15. be worth doing sth 值得做某事(worth 后接动词-ing形式，常考)

　　It was too remote to be worth thinking about.

　　16. begin to do sth begin/start to do/doing sth开始去做某事

　　When do children begin to go to school?

　　17. can/be able to afford (to buy) sth 有能力负担(购买)……

　　At this rate we won't be able to afford a holiday.

　　18. can/may/must do sth 能/可以/必须做某事

　　could/would/should/might do sth 能/将/应该/可以做某事

　　We may come at another time.

　　19. can't wait todo sth 迫不急待地去做某事

　　I can’t wait to hear the news.

　　20. decide to do sth 决定去做某事

　　make up one's mind to do sth 下决心去做某事(常考)

　　make a decision to do sth 对做某事作出决定

　　What do they decide to do?

　　I have made up my mind to go with him

　　21. deserve to do sth 值得/应该做……

　　We must admit that she did deserve to win.

　　22. encourage sb to do sth 鼓励某人去做某事

　　Encourage them to do some other helpful recreations.