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1. above/ over/ on

這三個(gè)介詞都表示“在……之上”，但含義不同。on指在某物的表面上，和某物接觸；above指在某物的上方，不和某物接觸，但也不一定在某物的正上方；over指在某物的正上方，不和某物接觸。試比較：

There is a book on the desk.課桌上有一本書。

I raise my right hand above my head. 我把右手高舉過頭。

There is a stone bridge over the river. 河面上有座石橋。

7. 時(shí)間狀語(yǔ)從句和條件狀語(yǔ)從句。

[名師講解]

6. 情態(tài)動(dòng)詞can, may和must, have to的用法；

5. 簡(jiǎn)單句的五種基本句型；

4. 感嘆句；

3. 一般將來(lái)時(shí)；

2. 反意疑問句的用法；

1. 一般過去時(shí)；

40.What's the trouble? 41.What's the matter with…? 42.She didn't feel like eating anything. 43.Nothing serious. 44.Have/get a pain in… 45.No problem. 46.Take this medicine three times a day.

IV. 重要語(yǔ)法

31.You must be more careful! 32.You mustn't cross the road now. 33.If you want to cross a street, you must wait for the green light. 34.Please stand in line. 35.You must wait for your turn. 36.If you don't go soon, you'll be late. 37.I don't feel very well. 38.My head hurts. 39.You mustn't eat anything until you see the doctor.