外研版高中英语必修三(精)

外研版高中英语必修三

Module 4 Sandstorms in Asia

语法课﹙2﹚

By王小林，来自武清区河西务中学

Part 1 教学设计

Teaching goals教学目标

1.Target language语言目标to be done

Grammar1. Infinitive: “to＋V”to be doing

to have been done

but＋to do

Grammar2.but + infinitive

but＋do

2．Ability goals能力目标

Make sure the learners are familiar with the form of these two grammars and master the function of them.

3. Learning ability goal学能目标

Help the learners find out and summarize the function of Infinitive using Deductive ＆ Inductive methods.

4. Teaching Important and difficult points教学重难点

Enable the learners to understand and master the function of Infinitive, especially its variations and how to help students use them accurately.

5. Teaching methods教学方法

Task—based approach

Deductive ＆ inductive method

6. Teaching Aids教具

A computer and projector

Such real subjects as books / chalk etc.

Teaching procedures教学步骤

StepⅠ.Greetings

Greet the students as usual

StepⅡ.Explanation and practice

A. (lead-in)

T：Class, correct the mistakes in these sentences on the screen.(Teacher shows the following sentences on the screen)

Example: People couldn’t to breathe when they went outside.

1. There is still a lot to have be done about traffic.

2. we should to recycle rubbish, not burn it.

3. We need develop better public transport in cities.]

4. The wind is strong enough blow the sand across the Pacific Ocean.

⒌Some countries are trying save the forests.

S1: …

S2: …

S3: …

S4: …

…

Suggested answers:

1. There is still a lot to be done about traffic.

2. we should recycle rubbish, not burn it.

3. We need to develop better publish transport in cities.

4. The wind is strong enough to blow the sand across the Pacific Ocean.

5. Some countries are trying to save the forest.

T: Class, seen from the sentences above, what does the underlined parts refer to?

Ss: The Infinitive.

T: What is the structure of the Infinitive? (Ask students to look at the screen and think it over)

Ss: The basic structure of the Infinitive is "to+v”

B. (begin to study the Grammar part)

T: Good ,class, look at the screen and think about the sentence s—what are the functions of the Infinitive

①To see is to believe.

②Your job is to wash dishes.

③He asked his students to listen to him carefully in class.

④It is wise to give up something.

S1: …

S2: …

S3: …

S4: …

…

Suggested answers:

①The Infinitive (to+v )→subject(主语)

②The Infinitive (to +v)→predicative（表语）

③The Infinitive (to +v)→object complement（宾语补足语）

④The Infinitive (to +v)→subject（主语）

T: Quite right. (Teacher shows the following on the screen)

a. subject

The Infinitive can be used as b. Predicative

c. object complement

㈠Practice.(Fill in the blanks with the correct form of the Verbs in the bracket.)

①It’s right______(give) up smoking.

②I’d like the problem ________(discuss)the next meeting.

③She will tell you which bus________(take).

④I often hear him______(sing)the song.

Suggested answers:

①to give②to be discussed③to take④sing

T: In fact, there are some other main usages of the Infinitive in addition to the usage above.

d. The Infinitive→Object (宾语)

E.g. ①He wanted to go.

②He promised to give me a chance.

③I find it interesting to work with him.

④It has no choice but to lie down and sleep.

⑤They didn’t open their mouths except to complain.

e. The Infinitive→Attributive（定语）

E.g.①He is a man to depend on.

②He is looking for a room to live in.

Adverbial of purpose(目的状语)

E.g. she got off the train to see a friend.

f. The Infinitive →

Adverbial of result(结果状语)

E.g. He hurried to the school to find nobody there.

㈡

①They hoped______(find)new resources for mankind.

②There is nothing_______(worry) about.

③The meeting________(hold) tomorrow is very important.

④The question is difficult_______(answer).

⑤I came here______(see) you.

⑥We were very excited_______(hear)the news.

Suggested answers:

①to find②to worry③to be held④to answer⑤to see⑥to hear

StepⅢ.Consolidation

一．Do some Exercises:

㈠Put the verbs in brackets into the correct form.

1. It is frightening _____(walk)in the road in a sandstorm. I hope I reach home soon.

2. Experts hope______(learn)more about the movement of sandstorms.

3.____(see) a real sandstorm was very frightening.

4. The wind is strong enough______(move)sand dunes.

5. We were advised _______(not go )outside.

S1: …

S2: …

S3: …

S4: …

…

Suggested answers:

①to walk②to learn③To see

④to move⑤not to go

1. He seems to know everything in the world.

2. He seems to be looking for something over there.

3. He seems to have been to Egypt. He has some photos with pyramids behind himself.

4.The bridge is said to be built next year.

5. To have been caught in a sandstorm was a terrible experience.

老师可以指导上述句子说：In the first sentence, we have verbs, “seems” and “to know" Which verb happens first or do they happen at the same time?

㈡Decide whether the underline phrases in these sentences refer to situation in the present or in the past.

Example: There is a lot to be done. That’s why we are working so hard (present)

①They worked hard because there was a lot to be done to improve farming methods. ( )

②They were the only big storm to have stayed on their land. ( )

③It was the first big storm to have affected Beijing so hardly. ( )

④After a week ,the wind seems to be dropping at last. ( )

⑤We are trying to stop desertification. ( )

⑥It’s not very pleasant to be out tin a sandstorm. I can’t breathe. ( )

S1: …

S2: …

S3: …

S4: …

…

Suggested answers:

①past②past③past④present

⑤present⑥present

㈢Decide which of the underlined phrases are Passive and which are Active.

Example: It was the thickest sandstorm to have been seen in Beijing. （passive）

①It was the worst storm to have affected Beingjing this year. （）

②That was the biggest climate change ever to have been recorded. （）

③I’d like to have been told about the risk of sandstorms before I moved here. （）

④To have stopped desertification so quickly is a great achievement. （）

⑤We are proud to have been the fist town to have recycled our rubbish. （）

S1: …

S2: …

S3: …

S4: …

…

Suggested answers:

①active②passive③passive④active⑤active

㈣Underline the correct infinitive form.

Example: More trees are to be planted/to have planted next year.

①The government seems to be fighting/to fight desertification successfully at last.

②We must to plant/plant more trees.

③Experts hope to learn/learn more about climate changes in the next few years.

④To have been reducing/To have reduced carbon dioxide emissions is a great achievement. Suggested answers:

①to fight②plant③to learn④To have reduced

㈤Rewrite these sentences using infinitive structures. use the examples in activity(P34)to help you .

①I’m traveling during a sandstorm. It’s dangerous.

→It’s dangerous to______________________.

②Experts hope that they will learn more about the movement of thunderstorms.

→Experts hope to___________________________.

③We were told,” Don’t leave the hous."

→We were told not______________________.

④The men need to complete the work on the house by the end of the week.

→The work on the house needs to__________________________________.

⑤It seems that most houses have been destroyed by the storm.

→Most houses seem____________________________________.

S1: …

S2: …

S3: …

S4: …

…

Suggested answers:

1)…travel during a sandstrom.

2)…learn more about the movement of thunderstorms.

3)…to leave the house.

4)…be completed by the end of the week.

5)…to have been destroyed by the storm.

T: Well done! Now, class, let’s come back to the following two sentences we have just learned. (d. The Infinitive→Object (宾语))

④It has no choice but to lie down and sleep.

⑤They didn’t open their mouths except to complain.

T: Class, look at the words and phrases in underlined parts in these sentences on the screen.

a. And get we do nothing but talk about it

b. I can not help but feel very concerned

c. I can not but wonder what will happen

And then answer the questions below.

⑴Which word or phrase means except?

⑵Which word or phrase means I have to?

⑶What part of the Verb follows the words in underlined part?

S1: …

S2: …

S3: …

S4: …

…

Suggested answers:

①“But” means “ except”除什么以外

②

③The infinitive without “to”

☆注意:but为介词，但其后可接不定式(如③④)，当其前面含有do动词或情态动词时，but 接不带to的不定式

其常用搭配：

Do/does/did sth but do sth

Have nothing to do but do sth

There is nothing to do but do sth

Can’t help but do sth

Can’t but do sth

㈥Underline the correct answer.

⑴I can’t help/but hope that they will succeed.

⑵I can’t help but think /to think that it was a mistake.

⑶I can’t chose/choose but do it.

⑷He does nothing but complaining/complain.

⑸I can’t help but to love/love her.

⑹The workers do nothing/not but drink tea and talk to each other.

Suggested answers:

⑴but⑵think⑶choose

⑷complain⑸love⑹nothing

㈦Rewrite these sentences. Use cannot but/cannot help but or do nothing but.

Example: He complains about the traffic .He does nothing else.

→He does nothing but complain about the traffic.

⑴I feel we should do more to light pollution.

⑵He always talks about environment problems. He does nothing else.

⑶They only talk about reducing air pollution.

⑷We admire the work they have done to save the environment.

Suggested answers:

⑴I can’t help but feel we should do more to fight pollution.

⑵He does nothing but talk about environment problem.

⑶They do nothing but talk about reducing air pollution.

⑷We can’t help but admire the work they have done to save the environment.

StepⅣ.Summary and Homework

T: In this class, we’ve reviewed several structure forms of the Infinitive: “to ＋V”. We’ve learned some other forms of the Infinitive, especially but + infinitive form. After class, do more relative practice. The more you practice, the better you will master them. That’s all for today.

Ss: See you next time!

Appendix附录

Part 2 Teaching Feedback教学反思

本堂课为必修3 Module 4 Sandstorms in Asia的语法Grammar1 Infinitive＆Grammar2 but infinitive。由于Grammar2 but infinitive是Grammar1 Infinitive的一个特殊情况，因此本人采用一般到特殊。在此过程中，本人采用让学生先接触一定量的含有所学语法规则的归纳法，并对其规则进行大量操练，让教学过程符合实践—理论—实践的认知事物的规律，逐步达到让学生掌握并正确运用语言的目的。

Part 3 专家点评

此教案较为详细，而且采用归纳法，从适量的例子中让学生在教师的指导下归纳出不定式的结构与用法，能让学生留下深刻的印象，并且能训练学生的推理能力，是一堂较成功的语法课教案。