Robert：You;re right . I like it very much . But the blue one is beautiful , too .
Mary：Yes , but it\'s more expensive . I don\'t want to influence you . You\'ll have to make up your own mind .
Robert：Every automobile here is nice . I don\'t know what to do .
Mary：Well , you\'ll have to make a decision .
Robert：Buying a toy car for my son is almost as difficult as buying a new family car .
3、交际测试一角
1) — Would you go and see the film this weekend ?
— .
A. No , I don\'t B. Yes , I think I will C. Yes , I would D. No , I wouldn\'t
〖答案B〗
2) — Why did you get home so late last night ?
— Because they my staying there for supper .
A. stuck B. stopped C. kept D. insisted on 〖答案D〗
Unit 3 中的交际要点：Prohibition And Warnings (禁止和警告)
禁止和警告通常是在一种紧急的语境中发出的，而且语言要简洁，因此祈使句是常见的表达方式。禁止和警告这一功能有时相当于威胁，但口气强弱有所不同。表示禁止时常用：You mustn\'t / You can\'t 。表示警告时常用和：Take care . / Be careful ! / Look out ! / Watch out ! 等。在接受了别人的警告后要向对方表示感谢。下面是在表达禁止和警告时常接触的言语。
1、Idiomatic Sentences 功能套语 30 句
1) No touch ! 请勿触摸展品 ！
2) No Smoking ! 禁止抽烟 ！
3) Look out ! / Take care ! / Mind out ! 小心 ！
4) Wet Paint ! 油漆未干 ， 请勿触摸 ！
5) Stand back , please . 请退后些 ！
6) Whatever you do , don\'t touch the wire ! 你无论如何别碰这电线 ！
7) Mind your own business ! 别管闲事 ！
8) Don\'t touch it , please . 不要触电 ！
9) Watch out for pickpockets ! 当心扒手 ！
10) Be careful not to make much noise . 当心不要太吵 ！
11) Don\'t lose your temper . 不要发脾气。
12) Be sure to be on time . 务必准时到。
13) Be sure not to be late again . 千万不要再迟到。
14) It\'s important not to touch the machine .
15) It\'s a safety requirement to wear this . 戴上这个是安全的要求。
16) Don\'t throw your cigarette out of the window . 千万不能把烟蒂仍在车窗外。
17) Don\'t tie it to that old branch . 不要把那系在枯树枝上。
18) You mustn\'t smoke while you are walking around in the bush either . 在灌木从中穿行时无比一定不能抽烟。
19) You mustn\'t touch the machine .
20) If you spit on a bus , you\'ll be fined . 在公共汽车上吐痰是要被罚款的。
21) You\'d better not do it .
22) Mind / watch your step ! 当心台阶 ！走路小心 ！
23) If I were you , I should be careful . I wouldn\'t do that .
24) If you do that again , you\'ll be in trouble . 如果再那样做，你会惹麻烦的。
25) If you don\'t stop making that noise , I will call the police .
26) Be careful ! Don\'t break your neck !
27) Make sure you lock the door when you leave !
28) Mind you don\'t step on the broken glass !
29) Watch out where you are walking , the ground is muddy ! 脚底留神，这地满是泥泞。
30) Mind ! There\'s a truck coming ! 注意 ！有辆卡车过来了 ！
31) The teacher says they mustn\'t talk during lessons .
32) We mustn\'t open the oven door before the cake is ready . 蛋糕做好一前不要打开炉门。
33) Look out ! You could fall off the edge here ! 小心 ！ 你会从这边缘掉下的。
34) Take care that you don\'t drink too much . = Take care not to drink too much . 当心别喝多了。