Unit 6 Electricity 2语法学案（含答案）沪教牛津版（深圳·广州·沈阳）七下
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| 名称 | Unit 6 Electricity 2语法学案（含答案）沪教牛津版（深圳·广州·沈阳）七下 |  | |
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| 文件大小 | 1.1MB | ||
| 资源类型 | 试卷 | ||
| 版本资源 | 牛津深圳版 | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-02-22 08:44:40 | ||
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中小学教育资源及组卷应用平台
Unit 6 Electricity
情态动词can, may, must
一、 can, could
1) 表示能力（体力、知识、技能),此时could是can的过去式。
Can you lift this heavy box （体力）
Mary can speak three languages.（知识）
Can you skate （技能）
此时可用be able to代替.Can只有一般现在时和一般过去式；而be able to则有更多的时态.
I’ll not be able to come this afternoon.
当表示“经过努力才得以做成功某事”时应用be able to,不能用Can.如：
He was able to go to the party yesterday evening in spite of the heavy rain.
2) 表示请求和允许.
-----Can I go now
----- Yes, you can. / No, you can’t.
此时可与may互换.在疑问句中还可用could, might代替,不是过去式,只是语气更委婉,不能用于肯定句和答语中。
---- Could I come to see you tomorrow
---- Yes, you can. ( No, I’m afraid not. )
3) 表示推测（惊讶、怀疑、不相信的态度）,用于疑问句、否定句和感叹句中.
Can this be true
This can’t be done by him.
How can this be true
二、 may, might
1) 表示请求和允许.might比 may语气更委婉,而不是过去式.否定回答时可用can’t 或mustn’t,表示“不可以,禁止”.
---Might/ May I smoke in this room
--- No, you mustn’t.
--- May/Might I take this book out of the room
--- Yes, you can. (No, you can’t / mustn’t. )
用May I... 征徇对方许可时比较正式和客气,而用Can I... 在口语中更常见.
2）用于祈使句,表示祝愿.
May you succeed!
3) 表示推测、可能性（不用于疑问句）.
might不是过去式,它所表示的可能性比may小.
1．He may /might be very busy now.
2．Your mother may /might not know the truth.
三、 must
1) 表示必须、必要.
You must come in time.
注：以must开头的疑问句的否定回答：不能用mustn’t（禁止,不准）,而用needn’t或don’t have to（不必）.
--- Must we hand in our exercise books today
--- Yes, you must.
--- No, you don’t have to / you needn’t.
--- Must he come back home right now
--- No, he doesn’t have to/ he needn’t.
2) must与have to
must是说话人的主观看法, 而have to则强调客观需要。Must只有一般现在时, have to 有更多的时态形式.
1． The play isn’t interesting, I really must go now.
2． I had to work when I was your age.
3) 表示推测、可能性（只用于肯定的陈述句）
1． You’re Tom’s good friend, so you must know what he likes best.
2． Your mother must be waiting for you now.
三、考点过关
单项选择
1. —Have you seen my glasses I find them.
—Sorry, I haven't seen them.
A. can't B. shouldn't C. won't D. mustn't
2. — you swim
—Yes, but I’m not a good swimmer.
A. Can B. May C. Need D. Must
3. Last year I drive. I used to take the bus.
A. could B. couldn’t
C. should D. shouldn’t
4. — May I watch TV for a while？
— No, you .You have to finish your homework first.
A. shouldn't B. needn't C. mustn't D. won't
5. — I have a ticket, please
—Sorry, sir. All the tickets were sold out ten minutes ago.
A. May B. Need C. Must D. Should
6. — I hear you’ve got a new iPhone X. I have a look
— Yes, certainly.
A. May B. Do C. Shall D. Should
7. — Must I finish reading the book today
— No. You if you have something else to do.
A. mustn’t B. couldn’t
C. can’t D. don’t have to
8. — Must I wait for you here now
— No, you , you may be back in half an hour.
A. don’t have to B. mustn’t
C. can’t D. shouldn’t
9. It doesn't look like rain, so you bring your umbrella with you.
A. shouldn't B. mustn't C. can't D. needn't
10. This pen looks like mine, yet it isn’t. Whose it be
A. must B. may C. would D. can
【答案】Key: 1-5 AABCA 6-10 ADADD
21世纪教育网 www.21cnjy.com 精品试卷·第 2 页 （共 2 页）
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Unit 6 Electricity
情态动词can, may, must
一、 can, could
1) 表示能力（体力、知识、技能),此时could是can的过去式。
Can you lift this heavy box （体力）
Mary can speak three languages.（知识）
Can you skate （技能）
此时可用be able to代替.Can只有一般现在时和一般过去式；而be able to则有更多的时态.
I’ll not be able to come this afternoon.
当表示“经过努力才得以做成功某事”时应用be able to,不能用Can.如：
He was able to go to the party yesterday evening in spite of the heavy rain.
2) 表示请求和允许.
-----Can I go now
----- Yes, you can. / No, you can’t.
此时可与may互换.在疑问句中还可用could, might代替,不是过去式,只是语气更委婉,不能用于肯定句和答语中。
---- Could I come to see you tomorrow
---- Yes, you can. ( No, I’m afraid not. )
3) 表示推测（惊讶、怀疑、不相信的态度）,用于疑问句、否定句和感叹句中.
Can this be true
This can’t be done by him.
How can this be true
二、 may, might
1) 表示请求和允许.might比 may语气更委婉,而不是过去式.否定回答时可用can’t 或mustn’t,表示“不可以,禁止”.
---Might/ May I smoke in this room
--- No, you mustn’t.
--- May/Might I take this book out of the room
--- Yes, you can. (No, you can’t / mustn’t. )
用May I... 征徇对方许可时比较正式和客气,而用Can I... 在口语中更常见.
2）用于祈使句,表示祝愿.
May you succeed!
3) 表示推测、可能性（不用于疑问句）.
might不是过去式,它所表示的可能性比may小.
1．He may /might be very busy now.
2．Your mother may /might not know the truth.
三、 must
1) 表示必须、必要.
You must come in time.
注：以must开头的疑问句的否定回答：不能用mustn’t（禁止,不准）,而用needn’t或don’t have to（不必）.
--- Must we hand in our exercise books today
--- Yes, you must.
--- No, you don’t have to / you needn’t.
--- Must he come back home right now
--- No, he doesn’t have to/ he needn’t.
2) must与have to
must是说话人的主观看法, 而have to则强调客观需要。Must只有一般现在时, have to 有更多的时态形式.
1． The play isn’t interesting, I really must go now.
2． I had to work when I was your age.
3) 表示推测、可能性（只用于肯定的陈述句）
1． You’re Tom’s good friend, so you must know what he likes best.
2． Your mother must be waiting for you now.
三、考点过关
单项选择
1. —Have you seen my glasses I find them.
—Sorry, I haven't seen them.
A. can't B. shouldn't C. won't D. mustn't
2. — you swim
—Yes, but I’m not a good swimmer.
A. Can B. May C. Need D. Must
3. Last year I drive. I used to take the bus.
A. could B. couldn’t
C. should D. shouldn’t
4. — May I watch TV for a while？
— No, you .You have to finish your homework first.
A. shouldn't B. needn't C. mustn't D. won't
5. — I have a ticket, please
—Sorry, sir. All the tickets were sold out ten minutes ago.
A. May B. Need C. Must D. Should
6. — I hear you’ve got a new iPhone X. I have a look
— Yes, certainly.
A. May B. Do C. Shall D. Should
7. — Must I finish reading the book today
— No. You if you have something else to do.
A. mustn’t B. couldn’t
C. can’t D. don’t have to
8. — Must I wait for you here now
— No, you , you may be back in half an hour.
A. don’t have to B. mustn’t
C. can’t D. shouldn’t
9. It doesn't look like rain, so you bring your umbrella with you.
A. shouldn't B. mustn't C. can't D. needn't
10. This pen looks like mine, yet it isn’t. Whose it be
A. must B. may C. would D. can
【答案】Key: 1-5 AABCA 6-10 ADADD
21世纪教育网 www.21cnjy.com 精品试卷·第 2 页 （共 2 页）
HYPERLINK "http://21世纪教育网(www.21cnjy.com)
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