Module 5 A Trip Along the Three Gorges Grammar 课件（18张PPT）
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| 名称 | Module 5 A Trip Along the Three Gorges Grammar 课件（18张PPT） |  | |
| 格式 | zip | ||
| 文件大小 | 347.5KB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版 | ||
| 科目 | 英语 | ||
| 更新时间 | 2019-08-20 11:30:31 | ||
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课件18张PPT。 Module5 Grammar
What happened to the boy?40'cWhat should he do?He should find a cool place
to have some water and have a rest, or
he must get heatstroke and may be ill
seriously.
情态动词用来表达可能性、能力、必要性、
义务、愿望、决心等的助动词。情态动词的语法特征情态动词不能单独作谓语,后面只能接动词原形共同构成谓语。
情态动词没有人称, 数的变化, 即情态动词第三人称单数不加-s。
每个情态动词有具体的含义和特点。He should find a cool place to have
some water and have a rest, or he
must get heatstroke and may be ill
seriously.情态动词may/mightmust/have toshall/shouldwill/wouldought toneed/darecan/could情态动词的用法表示能力
表示许可、请求、征询意见
表示推测
表示禁止
表示义务（应该）I am so strong that I can lift this stone.
He said that Jack couldn’t finish his work in such a short time.
He is only four, but he is able to read.
表能力can could be able to有时态变化can I go now?
Will you close the window?
Could I say it in Chinese?
May I know your name?
Would you mind closing the door?
Shall we dance?
Might I have a word with you?语气强 弱表许可, 征询意见can, will
could / may / would / shall / mightThere must be a mistake.
It's ten o'clock. Jack should be at home.
You may walk ten miles without seeing a house.
He might get there on time.
It can be true.
In those days few workers could support their families.表可能性(猜测)must , should
may, might, can, could在肯定句中语气强 弱语气强 弱She can’t be serious.
We couldn’t have done better.
People may not pick flowers in this garden.
She was afraid they might not like the idea.表不可能(猜测)can’t, couldn’t
may not, might not在否定句中mustn’t, shouldn’t had better notWe mustn’t waste our time.
They shouldn’t left so soon.
You’d better not disturb him.表禁止You should do what your parents tell you.
If you can’t finish the book by then, you must come and renew it.
This is a lovely party, but we have to go because of the invitation.
The bridge was not wide enough so that somebody had to give way.should, must have to表义务(应该)有时态变化(主)（客）翻译下列句子, 注意情态动词的不同用法: Tom, you mustn’t leave all your clothes on the floor like this!
2. --- Is John coming by train? --- He should, but he may not. He
likes driving his own car.
(表示禁止, 意为 “不许”)(表示对现在或将来的推测)Practice3. Helen may go on the trip with us, but she isn’t quite sure yet.
4. --- Isn’t that Ann’s husband over
there?
--- No, it can’t be him—I’m sure
he doesn’t wear glasses.(表示可能性, 意为 “可能”)(对现在的否定性推测, 意为 “不可能”)5. I often see lights in that empty house. Do you think I should report it to the police?
6. Children under 12 years old in that country must be under adult supervision when in a public library.(表示应该)表示义务或必要, 意为 “必须”7. Since it is raining, we have to stay indoors.
8. I must go now. There are a lot of things I want to do.(表客观需求)(强调主观意图)HomeworkFinish the exercise on
learning paper
What happened to the boy?40'cWhat should he do?He should find a cool place
to have some water and have a rest, or
he must get heatstroke and may be ill
seriously.
情态动词用来表达可能性、能力、必要性、
义务、愿望、决心等的助动词。情态动词的语法特征情态动词不能单独作谓语,后面只能接动词原形共同构成谓语。
情态动词没有人称, 数的变化, 即情态动词第三人称单数不加-s。
每个情态动词有具体的含义和特点。He should find a cool place to have
some water and have a rest, or he
must get heatstroke and may be ill
seriously.情态动词may/mightmust/have toshall/shouldwill/wouldought toneed/darecan/could情态动词的用法表示能力
表示许可、请求、征询意见
表示推测
表示禁止
表示义务（应该）I am so strong that I can lift this stone.
He said that Jack couldn’t finish his work in such a short time.
He is only four, but he is able to read.
表能力can could be able to有时态变化can I go now?
Will you close the window?
Could I say it in Chinese?
May I know your name?
Would you mind closing the door?
Shall we dance?
Might I have a word with you?语气强 弱表许可, 征询意见can, will
could / may / would / shall / mightThere must be a mistake.
It's ten o'clock. Jack should be at home.
You may walk ten miles without seeing a house.
He might get there on time.
It can be true.
In those days few workers could support their families.表可能性(猜测)must , should
may, might, can, could在肯定句中语气强 弱语气强 弱She can’t be serious.
We couldn’t have done better.
People may not pick flowers in this garden.
She was afraid they might not like the idea.表不可能(猜测)can’t, couldn’t
may not, might not在否定句中mustn’t, shouldn’t had better notWe mustn’t waste our time.
They shouldn’t left so soon.
You’d better not disturb him.表禁止You should do what your parents tell you.
If you can’t finish the book by then, you must come and renew it.
This is a lovely party, but we have to go because of the invitation.
The bridge was not wide enough so that somebody had to give way.should, must have to表义务(应该)有时态变化(主)（客）翻译下列句子, 注意情态动词的不同用法: Tom, you mustn’t leave all your clothes on the floor like this!
2. --- Is John coming by train? --- He should, but he may not. He
likes driving his own car.
(表示禁止, 意为 “不许”)(表示对现在或将来的推测)Practice3. Helen may go on the trip with us, but she isn’t quite sure yet.
4. --- Isn’t that Ann’s husband over
there?
--- No, it can’t be him—I’m sure
he doesn’t wear glasses.(表示可能性, 意为 “可能”)(对现在的否定性推测, 意为 “不可能”)5. I often see lights in that empty house. Do you think I should report it to the police?
6. Children under 12 years old in that country must be under adult supervision when in a public library.(表示应该)表示义务或必要, 意为 “必须”7. Since it is raining, we have to stay indoors.
8. I must go now. There are a lot of things I want to do.(表客观需求)(强调主观意图)HomeworkFinish the exercise on
learning paper