(3) Where did you live before you moved to Beijing?
(4) Please take these things away before you leave the room.
(5)Before I left, I rang him up.
3. after
(1) They go out for a walk after they have supper.
(2) The woman looked worried after she found her ticket lost.
(3) I went to bed after I finished writing my diary.
(4) What do you do after class is over?
(5) They talked about the party after the people left.
4.if
(1) If it doesn't rain tomorrow, we will leave for Beijing.
(2) If you jump the queue, other people will not be pleased.
(3) If you like my pen, I will give it to you.
(4) If he studies hard, he will catch up with his students.
在练习的过程中老师要提醒学生，由when，after，before引导的时间状语从句和由if引导的条件状语从句将来时用一般现在时来表示，而主句用将来时。
阅读训练教学
第66课讲的是一个幽默的小故事，描述发生在医务所里的一件令人啼笑皆非的事情。情节颇有趣。单词不多，内容易懂。教学时可先让学生听l－2遍录音，然后让学生在老师规定的时间内进行快速阅读，最后让学生看挂图扼要复述课文内容，检查学生快速阅读的效果。
学法建议
1．学生可以先设置一个医务所的场景，然后根据挂图内容，分组进行问答训练，以便进一步掌握课文内容。
2．本单元的语法项目首先要牢记他们的基本用法和含义，然后反复进行口头和书面训练。特别是含有must的一般疑问句，其否定回答不能用mustn’t，应该用needn’t或don’t have to。时间状语从句和假设性的条件状语从句将来时用一般现在时代替，但主句要用将来时。
重难点及疑点分析
重点及难点：
A．单词及短语
hit, queue, hurt, laugh at, mistake, reading room, alone, surprise, telephone
1. queue的意思是“行列”“长队”。stand in a queue = stand in line
2. hurt在本单元中作及物动词，是“受伤”的意思，作不及物动词用时表示疼。Does your leg still hurt？Not at all．
B．句子
1. Well, you mustn’t cross the road now.
2. She sat nearest to the doctor's door.
在本句中nearest是副词near的最高级，副词最高级前省去定冠词the。
3. You must wait for your turn.
4. Do you think it necessary for us to learn to wait?
本句中的it作形式宾语，necessary作宾语补足语。
5. She was in the city to visit her daughter．
C．语法
1．情态动词must的用法。
2．时间状语从句和条件状语从句。
疑点：
A．单词及短语
1．get on / off的意思是“上／下车／马”等，on和 off都是介词，代词放在其中间。如：When the bus stopped, he got off.
2．arrive是不及物动词，是“到达，抵达”的意思，与in或at连用。到达大地方用in反之用at。相当于reach或got to。如：arrive in Beijing，arrive at a village
3．enjoy oneself意思是“玩得愉快”，它相当于have a good time。
B．句子
1. If there is a lot of traffic, you must wait.
if引导的是假设性的条件状语从句，将来时用一般现在时表示，主句仍用将来时。例如：
If it doesn’t rain tomorrow, we will go swimming．
2. At the head of the queue was an old woman．
这是一个倒装句，倒装句分为全倒装和半倒装。此句是全倒装，条件是主语必须是名词而不是代词，又如：In front of the house sat an old woman．
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