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”。
禁令：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。
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。
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!