27.支付不起… 　can’t /couldn’t afford to do sth.

   　　　　　　 can’t / couldn’t afford sth.

   如：I can’t/couldn’t afford to buy the car.

       I can’t/couldn’t afford the car.  我买不起这个辆小车。

26. fifteen-year-old 作形容词　15岁的　

   fifteen-year-olds 作名词指15岁的人

　 fifteen years old 指年龄　15岁　如：

a fifteen-year-old boy　一个15岁的男孩

Fifteen-year-olds like to sing. 15岁的人喜欢唱歌。

I am fifteen years old . 我是15岁。

25.  help sb. with sth. 帮某人某事　

help sb. (to ) do sth. 帮某人做某事　

can’t help doing sth.

Help oneself to….

With the help of…=Thanks to…

She helped me with English.　她帮助我学英语。

She helped me (to) study English。　她帮助我学习英语。

24. it seems that +从句　看起来好像……　如：

　　It seems that he has changed a lot. 看起来他好像变了许多。

23. move to +地方　搬到某地　如：I moved to Beijing last year.

22.  make sb./ sth. + 形容词　　make you happy

    make sb./ sth. + 动词原形  make him laugh

21. how to swim 怎样游泳　

　　不定式与疑问词连用：动词不定式可以和what, which, how, where, when 等引导的疑问句连用，构成不定工短语。如：

     The question is when to start. 问题是什么时候开始。

     I don’t know where to go. 我不知道去哪。

20. be different from 与…不同　

19. in the last few years. 在过去的几年内　常与完成时连用　如：

    I have lived in China in the last few years. 在过去的几年内我在中国住。

18. miss  v.  思念、想念、　错过