1 / 48

Grammar - PowerPoint PPT Presentation

  • Uploaded on

Grammar. Find the sentences containing modal verbs in the reading passage. Then usually by lunchtime they would all be sold. What could have happened? Nothing could be better…” Something terrible must have happened if …. He could not believe his eyes.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation

PowerPoint Slideshow about ' Grammar ' - cid

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

Find the sentences containing modal verbs in the reading passage.

  • Then usually by lunchtime they would all be sold.

  • What could have happened?

  • Nothing could be better…”

  • Something terrible must have happened if …

  • He could not believe his eyes. passage.

  • Perhaps he should go to the library and find out.

  • He had better do some research!

  • Even though her customers might get thin after eating Yong Hui’s food…

  • They would become tired very quickly.

Modal verbs
Modal verbs passage.

a. should, ought to都可表示“应该”。ought to用于表示按道理应当,常指客观的义务或责任,大多数情况下可用should代替,但比should语气重。

I should help her because she is in trouble.

You ought to take care of the baby.

b. passage.表示劝告、建议或命令时,should和ought to可通用,但在疑问句中常用should。ought to的否定式为oughtn’t to或ought not to。

You should / ought to go to class right away.

Should I open the window?

What should we do next?

c. passage.should, ought to都可表示推测。

He ought to / should be home by now.

This is where the oil ought to / should be.

注意 passage.

should 和ought to 后面跟动词不定式的完成式, 其肯定句表示“过去应该做而未做”, 其否定句则表示 “过去不该做但做了”。

You should/ought to have made the decision a week ago.

I shouldn’t have made such a foolish mistake.

多数情况下,ought to可与should互换使用。ought to的反意疑问句用shouldn’t替代。

You ought to have helped him with his English, ________? passage.

A. won’t you

B. ought not you

C. shouldn’t you

D. wouldn’t you

2. must passage.和have to


1) 表示主观的义务和必要, 主要用于肯定句和疑问句, 意思为 “必须……,得……,要……”;由must引起的疑问句,肯定回答要用must或have to, 否定回答要用needn’t或don’t have to,  意思是“不必” ;

must passage.的否定形式mustn’t表示禁止,意思是“不能,不许”。如: 

—Must I finish the task right now?    我现在必须完成这个工作吗?

—Yes, you  passage.must. / Yes, you have to. 


(—No, you needn’t. / No, you don’t have to. 不,不必。)

You mustn’t come here without permission.


Have to
have to  passage.的用法 

1) must表示一种主观的需要,而have to表示一种客观的需要,意思是“不得不”。 如: 

I have to attend an important meeting this afternoon.


Mother is out, so I passage.have to look after the shop.


2) have to 的否定形式是don’t have to, 相当于needn’t。如:

They don’t have to buy a computer at present.   他们目前没有必要买电脑。 

passage.考例】The boss has given everyone a special holiday, so we ____ go to work tomorrow. (上海 2007春)

A. can’t B. mustn’t

C. needn’t D. shouldn’t

【点拨】考查情态动词。根据题意, 可知这里表示“没有必要”, 故只能选C项。

passage.考例】─What do you think we can do for our aged parents?

─You ____ do anything except to be with them and be yourself. (重庆 2007)

A. don’t have to B. oughtn’t to

C. mustn’t D. can’t

【点拨】根据题意“除了和他们呆在一起做你自己外, 没有必要做任何事情。”可知这里选择don’t have to表示“不必”。故选A项。

3. must passage.和need

need作情态动词时, 只能用于疑问句和否定句。构成否定句和疑问句时不借助于助动词do。

—Need I finish the work today?

—Yes, you must. / No, you needn’t.

b. passage.must的肯定形式表示“必须”,否定式


You must come here.

You mustn’t take the book away from

the library.

用下列图片造句。 passage.

You should do some sports.


慢慢地进食,并有助消化。 passage.

You ought to eat slowly and it’s good for digestion.

Make sentences
Make sentences passage.

1. 你每天最少要练习一小时口语。

You must practise speaking English at least an hour a day.

2. 我每天不得不练习一小时口语!

I have to practise speaking English an hour a day!

3. passage.你应该每天练习不止一小时。

You ought to/should practice

English for more than an hour.

4. 你应该读一下这个。它写得很好。

You ought to/should read this.

It’s very good.

5. 你必须读这个。写得精彩极了!

You must read this.It's marvelous!

Please choose a proper phrase and according to the situations complete the sentences by using should (not) or ought (not) to.

1. Lisa needs a change. She _______________________________.

2. My salary is very low. You ______________________.

should/ought to take a few days off

should look for a new job

ought not to /shouldn’t go situations complete the sentences by using

3. Nick always has difficulty getting up. He _______________________


4. What a beautiful view! You __________________.

5. Billy’s room isn’t very interesting. He ___________________________


to bed so late

should take a photo

shouldn’t/ ought not to use her

car so much

Choose suitable modal verbs below to complete the following dialogues.

ought/oughtn’t to should/ shouldn’t

mustn’t needn’t (don’t) have to will can/ can’t

1 Sam: How can I grow thinner, Mum?

Mum: Well, you _______ eat food with

plenty of fibre that helps you

digest better. And you _____ stop

drinking cola or eating sweet food.

have to


Sam: Does it mean I _________ eat my dialogues.

favourite fried chicken any more?

Mum: Not exactly, if you love fried

chicken, you ______ give it up.

Just eat it less often. You


worry too much: a little fried

chicken ____ do you good!



don’t have to/ needn’t/ shouldn’t


2 Doctor: You are sick because you’ve dialogues.

eaten poisonous mushrooms.

Where did you get them?

Lucy: I picked them in the forest. I know

we _______ eat fresh vegetables.

Doctor: Oh, but you _______ eat them

until you’re sure they are not


Lucy: Thank you, doctor. I’ll be more

careful next time.

have to


3 Charles: I wish I could see things dialogues.

clearly in the dark.

Tom: Eating carrots _______ help

you see better. You _______ eat

some every day.

ought to


练习坊 dialogues.

I. 根据下列英文解释写出所缺的单词。

1. _______ to discuss something with

someone so that you can make a

decision together

2. _______ to change food that you have

just eaten into substances that your

body can use



3. ______ a long pointed orange dialogues.

vegetable that grows under the


4. __________ containing poison or

producing poison



根据下列各句句意及所给单词的汉语提示 dialogues., 写出各单词的正确形式。

1. For a long time, I’ve built my business with people who are ________ (精力旺盛的), creative, and happy about their work.

2. This rich food doesn’t _____ (消化) easily.



3. The dish of boiled beef and _____ ( dialogues.胡萝卜) tastes good.

4. An increasing number of people are _________ (请教) their accountants about the tax laws.

5. This medicine is _________ (有毒) if taken in large quantities.




II. dialogues.用所给的情态动词填空。

must; oughtn’t to; don’t have to; couldn’t;

mustn’t; needn’t; can’t; have to

1. You _______________________ go on

working because you look so tired now.

2. The weather turned out to be fine

yesterday. I _______ have had the

trouble to carry my umbrella with me.

oughtn’t to / don’t have to


must; oughtn’t to; don’t have to; couldn’t; dialogues.

mustn’t; needn’t; can’t; have to

3. If you earn more than £5,000, you

_______ pay tax.

4. You _______ play now!You shall finish

your homework first!

5. I know things are hard with you, but

you _____________ try to get over the difficulties.

have to


must / have to

must; oughtn’t to; don’t have to; couldn’t; dialogues.

mustn’t; needn’t; can’t; have to

6. I didn’t see her at the meeting this

morning; she _____________ have

spoken at the meeting.

couldn’t / can’t

高考链接 dialogues.

1. I thought you __ like something to read, so I have brought you some books.

A. may B. might C. would D. must

2. Where is my pen? I ____ it.

A. might lose B. would have lost

C. should have lost D. must have lost

3. I didn’t hear the phone. I __ asleep. dialogues.

A. must be B. must have been

C. should be D. should have been

4. --Is John coming by train? dialogues.

--He should, but he __ not. He likes driving his car. (2002高考题)

A. must B. can C. need D. may

5. It has been announced that candidates (候选人) ____ remain in their seats until all the papers have been collected. (2002上海高考题)

A. can B. will C. may D. shall

6. --I heard they went skiing in the mountains last winter.

--It ____ true because there was little snow there. (2002北京高考题)

A. may not be B. won’t be

C. couldn’t be D. mustn’t be

7. ---There were already five people in the car, but they managed to take me as well.

---It ___ a comfortable journey.

A. can’t be B. shouldn’t be

C. mustn’t have been D. couldn’t have been

8. It’s nearly seven o’clock . Jack __ be here at any moment.

A. must B. need C. should D. could

Homework managed to take me as well.

1. Preview the reading (2) and reading task on Page 52. See how the story ended.

2. Find some information about healthy eating on the Internet.