课文详注 Further notes on the text

　　1.play with, 玩……(东西)。

　　The children are playing with a toy car in the garden. 孩子们正在花园玩一辆玩具汽车。

　　2.make a noise, 搞出声响。

　　noise是抽象名词。抽象名词是不可数的，前面加不定冠词a并不意味1、2、3、4等数目，只是赋予那个名词具体的含义，如一次、一种、一例、一番等。又如：

　　have a rest 休息一下

　　take a look at…看一眼……

　　3.lean out of the window, 把身子探出窗外。

　　out of是介词短语，与 in或 into相对，表示“离开”、“脱离”。

　　语法 Grammar in use

　　don't与mustn't都可用来表示禁令。用mustn't表示“禁止”或“不许可”，语气比较强烈。

　　词汇学习 Word study

　　1.keep v.

　　(1)使保持某状态;保持：

　　Keep the room warm. 使房间保持温暖。

　　Keep the fire burning. 不要让火熄灭了。

　　(2)保存;保留：

　　He would not be able to keep his job. 他恐怕保不住他那份工作了。

　　If you like it, just keep it. 你如果喜欢的话，那把它留下来吧。

　　(3)保守;储藏：

　　Please keep this secret. 请保守这一秘密。

　　Would you keep my things for me while I'm away? 在我离开的这段时间里，你能为我保管一下东西吗?

　　2.remain v.

　　(1)留下;停留：

　　You'd better remain at home. 你最好留在家里。

　　We're going to remain in Rome for another two days. 我们准备再在罗马逗留两天。

　　(2)保持不变：

　　It will remain cold for a couple of days. 天气还将持续冷几天。

　　Most people remained silent at the meeting. 多数人在会上保持沉默。

　　练习答案 Key to written exercises

　　Lesson 64

　　A

　　1 Jimmy is better now but he mustn't get up yet.

　　2 Jimmy has a cold and he must stay in bed.

　　3 Jimmy can get up for two hours each day.

　　4 Jimmy often reads in bed.

　　5 Jimmy listens to the stereo, too.

　　6 Jimmy doesn't feel ill now.

　　B

　　1 Don't take any aspirins!

　　You mustn't take any aspirins!

　　2 Don't take this medicine!

　　You mustn't take this medicine!

　　3 Don't call the doctor!

　　You mustn't call the doctor!

　　4 Don't play with matches!

　　You mustn't play with matches!

　　5 Don't talk in the library!

　　You mustn't talk in the library!

　　6 Don't make a noise!

　　You mustn't make a noise!

　　7 Don't drive so quickly!

　　You mustn't drive so quickly!

　　8 Don't lean out of the window!

　　You mustn't lean out of the window!

　　9 Don't break that vase!

　　You mustn't break that vase!

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（编辑：何莹莹）