3. I tried to say something, but my mouth was full of cotton wool. 我想说点什么，但我嘴里塞满了药棉。 cotton wool本意是指“原棉”的意思，也就是棉花最初 的状态。在英国英语中，多用来指代“药棉”。
• Try to do尽力做某事 未必会成功 • Manage to do 尽力做某事 一定会成功 • be fullof=be fillded with Eg: 1.But my mouth was filled with cotton wool.
• Don't pull my leg any more.
• You are kidding. You are joking • 你在开玩笑
★② vt.&vi. 拔，抽 • 他把一个地址本从他口袋里掏出来了。 • He pulled an address book from his pocket. ★collect v. 搜集 • collect salary 领工资 • collect stamps 集邮 • collect money 筹集资金 • collect children 收养孩子
新概念英语2第48课
New words and expressions 生词和短语
pull
v. 拔
cotton wool 药棉
collect
v. 搜集
collection n. 收藏品，收集品
nod
v. 点头
meanwhile adv. 同时
Dentists always ask questions when it is impossible for you to answer. // My dentist had just pulled out one of my teeth and had told me to rest for a while.// I tried to say something, but my mouth was full of cotton wool.// He knew I collected match boxes and asked me whether my collection was growing.// He then asked me how my brother was and whether I liked my new job in London.// In answer to these questions I either nodded or made strange noises. // Meanwhile, my tongue was busy searching out the hole where the tooth had been.// I suddenly felt very worried, but could not say anything.// When the dentist at last removed the cotton wool from my mouth, I was able to tell him that he had pulled out the wrong tooth.
8 What was your tongue busy doing? Searching out the hole where the tooth had been.
9 How did you feel suddenly? Very worried.
1. Dentists always ask questions when it is impossible for you to answer. 牙科医生们总是在你无法作出回答的时候向你 提出问题。
与之相反的动作就是push了，表示“推”。我们经常在 门把手上看到这两个词，如果写着pull，就表示你拉门就 开了。如果写着push，就表示推门门就开了。 课文这里pull out表示“拔出”的意思。 补充：pull one's leg是表示“开玩笑”。 引体向上就是“pull up”。 for a while 一会儿，片刻。

Comprehension questions
1 When do dentists always ask questions? When it's impossible for us to answer.
2 Have you just had a tooth out? Yes, I have.
3 Who pulled it out for you? My dentist did.
4 What did he tell you to do afterwards? To rest for a while.
5 Did you try to say something? Yes, I did.
6 You couldn't, could you? No, I couldn't.
7 Why couldn't you? My mouth was full of cotton wool.
这里it是形式主语，真正的主语是to answer。 • impossible通常不以人作主语，而以不定式或从
句作主语 • It is +adj+for/of sb+to do sth • It is+adj+that +句子
2. My dentist had just pulled out one of my teeth and had told me to rest for a while. pull做动词是表示“拖、拉、拔”的意思。
pull
• ① vt.&vi. 拉，拖，牵，扯（反义词push vt. 推）
• 我感觉有人拉着我的胳膊。
• I felt someone pulling my arm.
• You are pulling my leg. • pull one's leg 开某人玩笑 • 你在开我玩笑 • 不要再开我玩笑