Grammar and usage(1): Modal verbs: general introduction优质课教案推荐

安宜高级中学高一英语学科新授课导学案

主备人：武晴

杨晶晶

审查人：

赵红梅

安宜高级中学18-19年度第二学期高一英语学科新授课导学案(49) 课

题

M4U2 Usages of Modal Verb

班

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姓

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上课日期

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一、

学习目标：Enable students to masterr the usage of some common modal verbs and know

how to use them correctly; 二、

学习重、难点：

Enable students to know how to use them correctly; 三、前置性补偿：（用适当的情态动词填空）

1. A: _____ you succeed!

B: Thanks a lot. 2. A: A computer _____ think for itself.

B: You are right. It _____ be told what to do. 3. A: Shall I tell Mary about it?

B: No, you _____. I have told her already. 4. A: I’m told Tom had another car accident this morning.

B: I can’t believe it. He _____ have been so careless. 四、新知探究

旁注

情态动词的相关用法

※

must→should→can→could→may→might （语气从强到弱）

1.

must所表示的可能性最大，最有把握，意为“一定”。

2.

can和could主要用于否定句和疑问句中，can’t或couldn’t 表示“不可能”。

3.

may和might表示现在或将来可能发生的动作或情况，主要用于肯定句中，might相对于may来说，表示的可能性更小一些。

注意：

can也可用于肯定句中，表示理论上的可能性。e.g.

Anybody can make mistakes.

即讲即练

①

Mary ____ be in Paris, for I saw her in the town only a few minutes ago.

A. mustn’t

B. can’t

C. shouldn’t

D. may not

4.

should也可以用来表示“推测”，意为“可能；该”，相当于be expected to。往往指具有一定的客观根据或根据推理对现在某事发生的“可能性”进行描述，语气上不如must强。

即讲即练

— When can I come for the photos? I need them tomorrow afternoon. — They ____ be ready by 12：00.

A. can

B. should

C. might

D. need

注意：

解答情态动词表示猜测的试题时，一要清楚被猜测的时间，二要清楚有无客观事实根据。若有客观事实根据，则无论是肯定还是否定的猜测，猜测语气最强且符合时间要求的为最佳答案；若无客观事实根据，纯凭主观臆断，则猜测语气最弱且符合时间要求的为最佳答案。

表示推测

——

情态动词的重要用法

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安宜高级中学高一英语学科新授课导学案

主备人：武晴

杨晶晶

审查人：

赵红梅

情态动词

肯定的推测

must 可能的推测

may, might could, can 否定的推测

can’t,

couldn’t

疑问的推测

can, could 对现在

+ V. +

be doing + V. + be doing + V. + be doing + V. + be doing 对过去

对将来

+ V. + have done 常见must be

+ have done + V.

+ have done + V.

+ have done + V.

即讲即练

①

那小女孩没有出门。她现在一定在做家庭作业。

The girl is not out. She

her homework now. ②

路上是湿的。昨晚一定下雨了。

The road is wet. It

last night.

情态动词表示能力时，一般用can／could或be able to。

1.

can常指现在，较常用；如果只表示能力时，两者都可用。

e.g.

I can / am able to swim. 2.

be able to ①

可用于各种时态

e.g. We shall be able to finish the work next week.

②

侧重于“克服一定困难”“经过一定努力”“有能力”干某事

3.

can

①

只有一般现在时和一般过去时两种时态②

客观上能够

即讲即练

The fire spread through the hotel very quickly but everyone ____ get out.

A. had to

B. would

C. could

D. was able to

※

can/could/may/might

过去式could常用于疑问句中，比can更加委婉，表示礼貌。回答时，常用原形can或者may，不可再用过去式could/might。

即讲即练

— Could I borrow your dictionary? — Yes, of course you ____.

A. might

B. will

C. can

D. should ※

shall和should 1.

shall用于第一、三人称疑问句中，表示说话人征求对方的意见和向对方请示。

e.g.

Shall we begin our class?（征求意见）

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安宜高级中学高一英语学科新授课导学案

主备人：武晴

杨晶晶

审查人：

赵红梅

When shall Mike be able to leave hospital?(请示) 2.

shall用于第二、三人称陈述句中，表示说话人给对方的命令，警告，允诺，决心或威胁。

e.g.

You shall go with me. (命令) You shall have the book when I finish it. (允诺) He shall be punished. (威胁) 3.

用于条约，规定，规章等文件中，表示一种义务，shall多用于第三人称中。

即讲即练

“The interest ___ be divided into five parts, according to the agreement made by both sides.” declared the judge.

A. may

B. should

C. must

D. shall 4.

should= ought to 表示劝告，命令，建议，意为“应该”，而ought to 语气更强

e.g.

A: I’ll start the work tomorrow.

B: I think you should start today.

C: No, you ought to start at once. (语气更强）

※

must / have to must

“必须”，侧重说话人的主观看法

have to

(有多种时态）侧重于客观上的需要，含有“不得不”的意思

＝have got to 注意：

mustn’t

不应该，不许，禁止

don’t have to

＝

needn’t

不必

※

will 做情态动词

1.

will表示请求, 建议等，不如would委婉。

e.g.

Will /Would you pass me the book? Will he pay for me? 2.

will 表示意志，愿望，决心。

e.g.

I will never do that again. I will give up smoking. ※

used to和would 1.

都可以表示过去重复的习惯。

2.

区别：

used to “过去怎样而现在却不这样了”

would 单纯表示过去的习惯性动作，常和often, everyday等连用

e.g.

He would take a walk near the forest in the evening.（现在可能散步也可能不散步了）

He used to take a walk near the forest in the evening. （而现在不散步了）

不能用的would的情况：

1)

She isn’t what she used to be. 她跟过去不一样了。（表示对比，不可用would）

2)

There used to be a park. 以前这里有一个公园。

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安宜高级中学高一英语学科新授课导学案

主备人：武晴

杨晶晶

审查人：

赵红梅

（表示过去的状态，只能用used to，不可用would）

五、形成性检测

1. I promised to get there before 5 o’clock, but now the rain is pouring down.

They ______ for me impatiently.

A. may wait

B. ought to wait

C. could wait

D. must be waiting 2. I’ve tried several times, but the car just ______.

A. doesn’t start

B. wouldn’t start

C. won’t start

D. didn’t start 3. There used to be a small school, ______ ?

A. was there

B. wasn’t it

C. usedn’t there

D. usedn’t it 6. Haven’t I told you that you ______ have the answer tomorrow morning?

A. will

B. shall

C. should

D. would 7. I’m surprised that he ______ in the match.

A. should fail

B. should have failed

C. would have failed

D. may have failed 8. Sorry I’m late. I ______ have turned off the alarm clock and gone back to sleep again.

A. might

B. should

C. can

D. will 9. －There were already five people in the car, but they managed to take me as well.

－It ______ a comfortable journey.

A. can’t

B. shouldn’t be

C. must have been

D couldn’t have been 10. To be on the safe side, we should fill up the tank now, because we ___ run out of gas on the way.

A. can

B. would

C. might

D. should 11.－We need a person badly to think up such an idea.

－______ the new comer have a try?

A. Shall

B. May

C. Should

D. Need 12.－How about paying a visit to Mr. Richardson, our former history teacher?

－Good idea. I will e-mail him today so he ______ know ______ to expect us.

A. shall; why

B. may; when

C. would; why

D. will; how 13.－I went to work on foot yesterday, though it ______ cats and dogs.

－You ______ by bus. It was likely to get a cold.

A. is raining; must have gone B. rained; would go

C. was raining; should have gone

D. have rained; could have gone 14. Research findings show we spend about two hours dreaming every night, no matter what we ______ during the day.

A. should have done B. would have done

C. may have done

D. must have done 15.－Is there any flight to Tokyo today?

－I think there ______, for the weather is too bad.

A. mustn’t

B. mightn’t be

C. needn’t be

D. can’t be 六、学习反思

七、作业布置

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