人教版（2019）必修 第三册Unit 5 The Value of Money Grammar情态动词课件(共28张PPT)
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| 名称 | 人教版（2019）必修 第三册Unit 5 The Value of Money Grammar情态动词课件(共28张PPT) |  | |
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| 科目 | 英语 | ||
| 更新时间 | 2023-06-10 09:56:29 | ||
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(共28张PPT)
Modal verbs
表示说话人的语气
没有人称和数的变化
basic modal verbs 基本情态动词
can could may might must shall should will would
Book 3
ought to need dare
Unit 5
Test yourself 测一测
Coco, you _____play with the knife, you ____hurt yourself.
won’t; can’t B. mustn’t ; may
C. shouldn’t ; must D. can’t ; shouldn’t
---Will you stay for lunch
---Sorry,_____. My brother is coming to see me .
I mustn’t B. I can’t
C. I needn’t D. I won’t
Test yourself 测一测
Are you coming to Jeff’s Party
I’m not sure. I ____go to the concert instead.
A. must B. would C. should D. might
When he was there, he ____go to that coffee
shop after work.
A. would B. should C. had better D. might
Modal verbs
情态动词体现说话者的语气、情感和态度；本身具有各种含义，但不能单独做谓语，须和主要动词的原形一起构成谓语。情态动词没有人称和数的变化，但有过去式。
may / might
must / have to
shall / should
will / would
ought to
need / dare
can / could
Mindmap of the modal verbs
modal verbs
Modal verbs
A. necessity B. possibility C. obligation
D. request E. advice F. intention
Can you give examples of each function
Find modal verbs in previous sections and discuss their functions.
需要 可能 职责/义务
要求 建议 意图
Modal verbs
Experience the functions
can & could
_____you speak English
Man _________live without air.
Can
cannot
Can I smoke here
Perhaps we can go out for a walk.
I ’m afraid I can’t go with you.
Can
ability
指有能力做某事,意为”能够”
permission
指请求、允许、建议
possibility
指可能性
Could 表示过去的能力
表示请求更加委婉
He could swim when he was 5.
Could you lend me some money
can / could 与 be able to 的区别
be able to 与can/could意义相同，但常用于强调通过努力后能做某事，而且可用于多种时态。
考点
The fire spread fast, but everyone in the hotel
was able to get out.
注意can 的惯用语
On hearing the story , I cannot help laughing .
You cannot be too careful with them.
cannot help doing sth. 忍不住做某事
cannot too “无论怎么样..也不为过,越…越好
may & might
① — May I watch TV after supper
— Yes, you may/can. / No, you can not/mustn’t.
② They may / might be having a meeting, but I’m not sure.
③ If that is the case, you may / might as well try.
①句中may表示______________________。
否定回答时，用_______________。
(2) ②句中may和might表示_________，______可能性更小。
(3) ③句中______________________________，意为“不妨”。
允许或征询对方许可
can not/mustn’t
可能性
might
may / might as well ＋ 动词原形
考点1
当句中出现” I am afraid, I am not sure” 等表示不确定含义的时候,常选用may 和might .
I may go, but I am not quite sure.
I am afraid he might not come to attend the
meeting today.
从语气上判断,may 所表示的可能性比might 大一点,而might 表示较多的怀疑.
He may be very busy now. (可能性较大）．
He might be very busy now. (可能性较小）．
may 表示祝愿;但语气较正式:
May you succeed!
May you have a good journey!
might
多在间接引语中表示过去的可能和允许。 She said that he might take her bike.
考点2
① Would you pass me the ball, please
② She said that she would try her best to help us.
③ Each time his mother’s birthday came, he would buy her a present.
④ We will do our best to save the child.
⑤ Oil will float on the water.
(1) ①句中would表示____________，比will更委婉客气。
(2) ②句中would和④句中的will表示__________________。
(3) ③句中would和⑤句中的will表示_______________________。
请求、建议
意志、愿望和决心
习惯性动作或客观真理
will & would
考点1
Attention:
would表示过去的习惯性动作时，暗示现在仍然如此；
而used to表示过去常常做某事，强调现在不是这样了。
Each time his mother’s birthday came, he would buy her a present.
My father used to go to the office by bike when he was young.
shall & should & ought to
Shall 常用于第一人称，表示征求对方意见或表决心．
Shall we dance
Shall we go by train
I shall go at once.
Shall 用于第二，第三人称中，表示说话人的意愿意志，给对方的警告或命令、决心、威胁等
You shall fail if you don’t work hard. (警告）
He shall be punished. (威胁）
用于法律，条约，规章，等文件中，无论主语人称如何一律用shall
Each student shall arrive at school before 7:15 in the morning.
Attention please
should & ought to
1. 表示义务或责任, 译为为“应该”。
We should/ought to learn from each other.
2. 表示建议或劝告，译为为“可以，应该”。
You should/ought to try your best to better your performance.
3. 表示推断, 译为”应该”, “可能”, “按道理会”。
They should/ought to be there by now.
4. should表示意外或惊讶，译为“竟然”。
It's strange that he should come so late.
① I have to wait here because I have no umbrella with me.
② I must recite the text this morning.
③ — Must we hand in our exercise books today
— Yes, you must. / No, you don’t have to / you needn’t.
④ You mustn’t smoke here.
⑤ Your mother must be waiting for you now.
⑥ Why must you always interrupt me
(1) ①句中have to和②句中must均表示“______”，但______是指说话人的主观看法，而________则强调客观需要。
(2) ③句中must 所构成的疑问句，回答的否定形式通常为__________________
或________，意为“不必要”，而一般不说____________ (④句中mustn’t表示“禁止”)。
(3) ______句中must 常表示有根据的、比较确定的推测（只用于肯定的陈述句），译为“一定；必定”。
(4) ⑥句中must表示“____________”。
must & have to
必须
must
have to
needn’t
don’t have to
mustn’t
⑤
偏要；偏偏
① If he dare go, I’ll go with him.
② Tom didn’t dare to do it.
(1) dare作情态动词时，表示“ __________”。常用于否定句和疑问句中，后接动词原形，否定形式为_________。
(2) dare常用作_________ ，有________________的变化，后面可接________________ 。
(3) dare 作为实义动词，有如下搭配：
dare to do sth 敢于做某事
dare sb to do sth 激某人做某事
dare & need & had better
敢； 敢于
dare not
实义动词
时态、人称和数
带to的不定式
① You had better get some sleep.
② You had better not talk with strangers.
had better表示“____________”，使用时常缩写为____________，无人称和数的变化，其否定式一般把not放在had better之______。
had better
最好……
’d better
后
选用括号内合适的内容完成下面对话。
Amanda: Hey, Bob. 1. ________ (Can, Will) I ask you a question Do you have a minute
Bob: Um, I guess so. I've got a class at ten, but I 2. ________ (should, need) have a few minutes. What is it
Can
should
Amanda: Well, I have a second interview for a job tomorrow, and I really 3. ________ (will, should) get ready for it. I 4. ________ (need, may) think about what to ask, you know, about salary or benefits and stuff.
Bob: Yeah. You 5. ________ (can, ought to) think about what you want. You 6. ________ (can, will) make a list.
should
need
ought to
can
Amanda: OK. 7. ________ (Would, May) you help me I've got my laptop. Oh, it 8. ________ (won't, shouldn't) turn on.
Bob: You 9. __________ (had better, may) plug it in. OK, so let's see ... Do they provide health insurance
Amanda: Oh, I hope so. They 10. ________ (can, might) have it. Don't all companies offer some help with insurance
Would
won't
had better
might
Modal verbs
表示说话人的语气
没有人称和数的变化
basic modal verbs 基本情态动词
can could may might must shall should will would
Book 3
ought to need dare
Unit 5
Test yourself 测一测
Coco, you _____play with the knife, you ____hurt yourself.
won’t; can’t B. mustn’t ; may
C. shouldn’t ; must D. can’t ; shouldn’t
---Will you stay for lunch
---Sorry,_____. My brother is coming to see me .
I mustn’t B. I can’t
C. I needn’t D. I won’t
Test yourself 测一测
Are you coming to Jeff’s Party
I’m not sure. I ____go to the concert instead.
A. must B. would C. should D. might
When he was there, he ____go to that coffee
shop after work.
A. would B. should C. had better D. might
Modal verbs
情态动词体现说话者的语气、情感和态度；本身具有各种含义，但不能单独做谓语，须和主要动词的原形一起构成谓语。情态动词没有人称和数的变化，但有过去式。
may / might
must / have to
shall / should
will / would
ought to
need / dare
can / could
Mindmap of the modal verbs
modal verbs
Modal verbs
A. necessity B. possibility C. obligation
D. request E. advice F. intention
Can you give examples of each function
Find modal verbs in previous sections and discuss their functions.
需要 可能 职责/义务
要求 建议 意图
Modal verbs
Experience the functions
can & could
_____you speak English
Man _________live without air.
Can
cannot
Can I smoke here
Perhaps we can go out for a walk.
I ’m afraid I can’t go with you.
Can
ability
指有能力做某事,意为”能够”
permission
指请求、允许、建议
possibility
指可能性
Could 表示过去的能力
表示请求更加委婉
He could swim when he was 5.
Could you lend me some money
can / could 与 be able to 的区别
be able to 与can/could意义相同，但常用于强调通过努力后能做某事，而且可用于多种时态。
考点
The fire spread fast, but everyone in the hotel
was able to get out.
注意can 的惯用语
On hearing the story , I cannot help laughing .
You cannot be too careful with them.
cannot help doing sth. 忍不住做某事
cannot too “无论怎么样..也不为过,越…越好
may & might
① — May I watch TV after supper
— Yes, you may/can. / No, you can not/mustn’t.
② They may / might be having a meeting, but I’m not sure.
③ If that is the case, you may / might as well try.
①句中may表示______________________。
否定回答时，用_______________。
(2) ②句中may和might表示_________，______可能性更小。
(3) ③句中______________________________，意为“不妨”。
允许或征询对方许可
can not/mustn’t
可能性
might
may / might as well ＋ 动词原形
考点1
当句中出现” I am afraid, I am not sure” 等表示不确定含义的时候,常选用may 和might .
I may go, but I am not quite sure.
I am afraid he might not come to attend the
meeting today.
从语气上判断,may 所表示的可能性比might 大一点,而might 表示较多的怀疑.
He may be very busy now. (可能性较大）．
He might be very busy now. (可能性较小）．
may 表示祝愿;但语气较正式:
May you succeed!
May you have a good journey!
might
多在间接引语中表示过去的可能和允许。 She said that he might take her bike.
考点2
① Would you pass me the ball, please
② She said that she would try her best to help us.
③ Each time his mother’s birthday came, he would buy her a present.
④ We will do our best to save the child.
⑤ Oil will float on the water.
(1) ①句中would表示____________，比will更委婉客气。
(2) ②句中would和④句中的will表示__________________。
(3) ③句中would和⑤句中的will表示_______________________。
请求、建议
意志、愿望和决心
习惯性动作或客观真理
will & would
考点1
Attention:
would表示过去的习惯性动作时，暗示现在仍然如此；
而used to表示过去常常做某事，强调现在不是这样了。
Each time his mother’s birthday came, he would buy her a present.
My father used to go to the office by bike when he was young.
shall & should & ought to
Shall 常用于第一人称，表示征求对方意见或表决心．
Shall we dance
Shall we go by train
I shall go at once.
Shall 用于第二，第三人称中，表示说话人的意愿意志，给对方的警告或命令、决心、威胁等
You shall fail if you don’t work hard. (警告）
He shall be punished. (威胁）
用于法律，条约，规章，等文件中，无论主语人称如何一律用shall
Each student shall arrive at school before 7:15 in the morning.
Attention please
should & ought to
1. 表示义务或责任, 译为为“应该”。
We should/ought to learn from each other.
2. 表示建议或劝告，译为为“可以，应该”。
You should/ought to try your best to better your performance.
3. 表示推断, 译为”应该”, “可能”, “按道理会”。
They should/ought to be there by now.
4. should表示意外或惊讶，译为“竟然”。
It's strange that he should come so late.
① I have to wait here because I have no umbrella with me.
② I must recite the text this morning.
③ — Must we hand in our exercise books today
— Yes, you must. / No, you don’t have to / you needn’t.
④ You mustn’t smoke here.
⑤ Your mother must be waiting for you now.
⑥ Why must you always interrupt me
(1) ①句中have to和②句中must均表示“______”，但______是指说话人的主观看法，而________则强调客观需要。
(2) ③句中must 所构成的疑问句，回答的否定形式通常为__________________
或________，意为“不必要”，而一般不说____________ (④句中mustn’t表示“禁止”)。
(3) ______句中must 常表示有根据的、比较确定的推测（只用于肯定的陈述句），译为“一定；必定”。
(4) ⑥句中must表示“____________”。
must & have to
必须
must
have to
needn’t
don’t have to
mustn’t
⑤
偏要；偏偏
① If he dare go, I’ll go with him.
② Tom didn’t dare to do it.
(1) dare作情态动词时，表示“ __________”。常用于否定句和疑问句中，后接动词原形，否定形式为_________。
(2) dare常用作_________ ，有________________的变化，后面可接________________ 。
(3) dare 作为实义动词，有如下搭配：
dare to do sth 敢于做某事
dare sb to do sth 激某人做某事
dare & need & had better
敢； 敢于
dare not
实义动词
时态、人称和数
带to的不定式
① You had better get some sleep.
② You had better not talk with strangers.
had better表示“____________”，使用时常缩写为____________，无人称和数的变化，其否定式一般把not放在had better之______。
had better
最好……
’d better
后
选用括号内合适的内容完成下面对话。
Amanda: Hey, Bob. 1. ________ (Can, Will) I ask you a question Do you have a minute
Bob: Um, I guess so. I've got a class at ten, but I 2. ________ (should, need) have a few minutes. What is it
Can
should
Amanda: Well, I have a second interview for a job tomorrow, and I really 3. ________ (will, should) get ready for it. I 4. ________ (need, may) think about what to ask, you know, about salary or benefits and stuff.
Bob: Yeah. You 5. ________ (can, ought to) think about what you want. You 6. ________ (can, will) make a list.
should
need
ought to
can
Amanda: OK. 7. ________ (Would, May) you help me I've got my laptop. Oh, it 8. ________ (won't, shouldn't) turn on.
Bob: You 9. __________ (had better, may) plug it in. OK, so let's see ... Do they provide health insurance
Amanda: Oh, I hope so. They 10. ________ (can, might) have it. Don't all companies offer some help with insurance
Would
won't
had better
might