lesson19

How did Mary come Here?
She might come by bus.
They might be having dinner now.
He might be in his bedroom.
It might rain in the afternoon.
If he runs faster, he might
( A ) 1. John ________ come to see us tonight, but he isn’t very sure yet. A. may B. can C. has to D. must
( D ) 2. They ________ do well in the exam. A. can be able to B. be able to C. can able to D. can
2.You ____ repair the machine, for it operated quite normally. A. must not B. don’t need C. needn’t D. don’t have needed Key: C 3. ----This is a terribly heavy box. -----I ____ help you carry it. A. am to B. will C. am going to D. was going to Key: B
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Grammar
结构 2. 表示请求时：
E.g. Could I use your phone please? 我能用用你的电话吗？ Might I use your phone please? 我能用用你的电话吗？
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ought to… You ought to read this book. (should) He ought to be there by now. 1. ----Must I wake him up? ---- No, you_____. A. mustn’t B. needn’t to C. don’t need to D. don’t need Key: C
“I might as well have them.” I said sadly. might as well: 不妨
那地方不太远，我们还不如走着去呢。 It’s not very far, so we may/might as well walk ther Modal verbs: can/ could/ may/ might/ must/ ought to
Grammar
名称
情态动词can, may
can’t表推测时表示“一定不是”； may表推测时表示“可能是”。
含义
用法
用情态动词can, may来表示请求做某事或 猜测某件事的可能性。
may/might + 动词原形 E.g. She may be a model. 她可能是个模特。
结构 表示推测时:
“ The play may begin at any moment,” I said. “It may have begun already,” Susan answered. at any moment: immediately, at once
随时都可能下雨。
It may rain (at) any moment.
can: 1 Can you swim? 2 Can I help you? 3 It can be windy in fall in this area. 4 That can’t be David. He had gone to Britain yesterday. 5 You can smoke here.
• 'The play may begin at any moment,' I said. • 'It may have begun already,' Susan answered. • I hurried to the ticket office. 'May I have two tickets please?' I asked. • 'I'm sorry, we've sold out,' the girl said. • 'What a pity!' Susan exclaimed. • Just then, a man hurried to the ticket office. • 'Can I return these two tickets?' he asked. • 'Certainly,' the girl said. • I went back to the ticket office at once. • 'Could I have those two tickets please?' I asked. • 'Certainly,' the girl said, 'but they're for next Wednesday's performance. Do you still want them?' • 'I might as well have them,' I said sadly.
If you want to travel in the coming holiday, what will do?

search the Internet
How to book a ticket?
When was the play going to begin? Were there any tickets left? Why was the writer not very happy about those tickets?
作为对这顿饭的回报，那乞丐头顶地倒立起来，嘴里还唱着歌。
In return for the meal, the beggar stood on his head and sang songs. I gave the beggar a meal in return that he stood on his head and sang songs.
Thank you! Doctor!
Grammar
You may have caught a cold. 情态动词 + V. 原形 —Can I smoke? —Yes, you can. —No, you can not.
can/may 表示请求
You must not smoke.
情态动词否定 + V. 原形
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Grammar
结构
can’t have done：一定不会 （对过去的强烈否定推测） E.g. Jerry can’t have gone to Beijing, for I just saw him. Jerry不可能去北京，我刚还看到他了。 William can’t have stolen your pen, he has arrived home. William不可能偷了你的笔，他已经到家了。
hurry to do sth. 他赶紧把地上的硬币捡起来。 He hurried to pick up the coins on the floor. 快点！我们要迟到了。 Hurry up! We’ll be late. in a hurry / in one’s hurry 匆忙之中，店主把他的狗给弄丢了。
Oh, I see. Can I still work today?
No, you can’t. You must have some medicine. You may eat more vegetables.
Um… May I have something spicy?
No, you can’t!
Unit 19 Grammar
What is wrong with you?
I may have caught a fever. I am still not feeling well.
Let me see. Do you have a headache?
No, I don’t.
It can’t be a fever. You may have a cold.
客人马上就到。
The guests may arrive at any moment. may have begun: Her friend may have gone abroad. They may be waiting for you at the airport.
I hurried to the ticket office. “May I have two tickets please?” I asked. “I’m sorry, we’ve sold out,” the girl said. hurry: v./ n. Adj. hurried
“Can I return these two tickets?” he asked. “Certainly,” the girl said. I went back to the ticket office at once. “Could I have those two tickets please?” I asked. “Certainly,” the girl said, “but they’re for next Wednesday’s performance. Do you still want them?”
Grammar
结构 1.表示推测
can’t + be：一定不是（对现在的强烈否定推测） E.g. That man can’t be Jack. 那个男人肯定不是Jack。