9.Mind your own business!别管闲事!

8.Mind the wet paint!

7.Make sure you lock the door when you levave!

6.Look out!/Take care!/Be careful!

5.No noise,please.

4.Don't smoke.

3.You had better not do…

2.If you…,you will…

1.You can't/Mustn't do…

　　 Ⅰ.词汇学习

　　 amazing,spot,surround,astonishment,to one't astonishment,troop,downward

　　 Ⅱ.交际英语

　　 Prohibitions and warnings(禁止与警告)