2.频率: often (经常) = usually (通常) = always (总是)

　 ↓

　 副词：放在行为动词和实义动词前，情态动词后。

1. at +具体时刻　　　 e.g. : I go to school at 7:00.

18.“为什么不······？”的句型：

　 (1)Why not +动词原形？

　 (2)Why don’t you +动词原形？

　　　 　　　　　　Unit 11

17. a little(肯定)、 little(否定)都修饰不可数名词

　 e.g. : a little :① I can speak a little English.

　　　　　　 ② We have a little time.

　　　　　　 ③ There is a little sheep under the tree.

　　　　 little : ① I can speak little English.

　　　　　　 ② Hurry up, we have very little time.

16. see、watch与look at的区别：

　 (1) see : 看到，强调结果。

　 (2) watch : 一股看到的物品，画面是会动的。

　 (3) look at : 看，强调动作。

15. afternoon = p.m. = pm

14. may :表示意愿

　 e.g. : May I speak to sb ?

　　　 May I know your name?

　　　 May I come in ?

13. show sth to sb = show sb sth

　 e.g. : He shows his new pen to me. = He shows me his new pen.

12. Then you can be in our school music festival.

　 　那么你就可以加入学校的音乐节。

11.or与and的区别：

　(1)or用在疑问句和否定句。

(2)and用在陈述句和肯定句。