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高二英语必修2单元教案:Working the land

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2016-02-25

The purpose of this step is to let students know the importance of rice. By answering the two questions, students can easily understand why we call Dr Yuan Longping a pioneer for all people, and why  he devotes all his life to the rice research.

T: Food is the basic need for man. Rice is a main food in all Eastern Asian and Southeastern Asian countries. It is said that there are 2.4 billion people to eat rice everyday throughout the world. What do you think would happen if tomorrow there was suddenly no rice to eat?

S: I think if that happened, people there would suffer from starvation. They would be panic and the whole country would get into trouble. Maybe the situation that human beings eat human beings will happen.

T: That’s too terrible. But this kind of thing once happened in history. Well, if you had the chance to do one thing to help end famine in the world, what would you do?

S: I would invent a new kind of plant to produce more food.

S:  I’ll make a kind of fertilizer to give rice enough nutrition and let them grow quickly and have high product. But first without pollution to our environment.

T: A great idea! Your idea is just the same with Dr Yuan Longping. Do you know Yuan Longping?

S: I heard that he is an expert on agriculture.

T: Yeah, today we are going to read a passage about him. Let’s see how he helped the world to solve the problem- starvation. Please open your books to Page 9.

Step Ⅳ  Fast Reading

The reading material is about an agricultural pioneer named Yuan Longping who worked hard at a new strain of rice. It has proved so successful that his technology  spread into other countries. The purpose of fast reading is to let students find some useful information, and get familiar with the text. So in this step, teacher can design some questions for students, so that they can easily find the answers and finish the reading task.

T: Please scan the passage and find out the answers to the questions on the screen. Then I’d like to ask you to answer them.

Show the questions on the screen and give students three minutes to read the text quickly.

1. Why did Yuan Longping want to increase the rice output when he was young?

2. Is Dr Yuan more of a scientist or more of a farmer? Do you think he is a businessman?

3. How would you describe Dr Yuan’s personality? Use three or four adjectives.

4. What do you think is the main reason for his success?

5. Dr Yuan thinks that a person with too much money has more rather than fewer troubles. Do you agree or disagree? Why?

6. Dr Yuan developed super hybrid rice to help Chinese farmers and hungry people around the world. Can you think of any other major development that would make a great difference to world hunger?

Step Ⅴ Explanation

Show the following points on the screen.

1. struggle  v  to make great efforts

e.g. They have struggled for years to free their country from the enemy.

I’m struggling to finish the huge helping you gave me.

2. sunburnt adj  sun-tanned

e.g. His sunburnt skin looks healthy.

3. super adj (infml) excellent; splendid

e.g. You’ll like her, she’s super.

You look super in your new clothes.

It was super of you to help.

4. expand  v

(cause sth to) become greater in size, number or importance

e.g. Metals expand when they are heated.

Why not try to expand your story into a novel?

5. circulate  v

(cause sth to ) pass from one person, place, etc to another

e.g. People who circulate false news are to be blamed.

Yet reports of this kind have been circulated by our newspapers.

The news of the enemy’s defeat quickly circulated round the town.

6. equip  v

supply sb/sth (with what is needed, for a particular purpose)

e.g. Now all fishing boats are radio-equipped.

They can’t afford to equip their army properly.

Please equip yourself with a sharp pencil and a rubber for the exam.

7. export  v

send (goods) to another country for sale

e.g. India exports tea and cotton to many different countries.

This company has a large home market but doesn’t export.

8. rid ... of   make sb/ sth free from (sb/ sth unpleasant)

e.g. We all wish that we would rid the world of famine.

The farmer recently tried to rid the house of rats.

9. be satisfied with, be content with

e.g. The young lady isn’t satisfied with the peaceful life.

Are you satisfied with his answers?

10. would rather, prefer to

e.g. I’d rather walk than take a bus.

I’d rather you knew that now, than afterwards.

Step Ⅵ Listening and Post-reading

At first, let students listen to the tape, and then finish the exercise in Comprehending, we have involved some questions in Exercise 3, so teacher can choose some questions to do. For Ex 1 and 2, teacher can leave some time for students to finish and then check the answers with the whole class.

Step Ⅶ Summary and Homework

T: Today we talked about agriculture. And we also read about Dr Yuan Longping. We have known much about the great scientist. Of course we have learned some words and expressions about farming. Please try to grasp these words and expressions after class. Now please look at the poem on the screen:

Farmers weeding at noon,

Sweat down the field soon.

Who knows food on a tray,

Due to their toiling day?

T: Do you know it? Read it and say what does it mean?

Ss: Of course. It’s 悯农 written by Li Shen.

T: Right. The title is A HARD - WORKING FARMER. This is my gift to you. Please read it together. OK, hope you can remember it when you are having your dinners. Besides, I’d like you to think: even if Dr Yuan’s dreams come true, can this really solve the starvation? Why? This is the homework. Think it over. Next time I’ll ask some of you to give your opinion in the class. Another one is to finish the exercises in Learning about Language. Exercise 1, 2 and 3 are about useful words and expressions. Finish them. Next time we’ll check the answers. Ok, class is over. See you next time.

附件:

课文复述

Retell the text in about 150 words.

Notes:

1. Use the first person to retell the story.

2. Try to use the proper conjunctions.

3. Refer to the chart while retelling.

4. The possible version below can be used as a material for both retelling and dictation.

One possible version:

I’m Yuan Longping. Look at my sunburnt face and arms and my slim, strong body and you will think I’m more like a farmer than a scientist. In fact I have struggled for the past five decades to help farmers. In 1974, I began to grow a so-called super hybrid rice. This special strain of rice makes it possible to produce one-third more of the crop in the same fields.

I was born into a poor farmer’s family in 1931. When I was young, I saw many people go hungry often. So I have devoted myself to finding ways to increasing rice harvest without expanding the area of fields since I graduated from Southwest Agriculture College in 1953. Now more than 60 % of the rice produced in China each year is from this hybrid strain. I am circulating this knowledge in India, Vietnam and other less developed countries to increase their harvest. Perhaps you think I am rich. Actually I live a simple life. I care little for money. In my opinion a person with too much money will have more troubles. I don’t want to be famous because I prefer to have more time to do my research. In my free time I love listening to music, playing mah-jong and reading. I once had a dream, in which I saw rice plants as tall as sorghum and each ear of rice was as big as an ear of corn and each grain of rice was as huge as a peanut. Now I have another dream—to export my rice so that it can be grown all over the world.

The second period Grammar

The Second Period Words and Grammar

Teaching goals 教学目标

1. Target language 目标语言

a. 词汇和短语

sunburnt, hunger, expand, circulate, struggle, export, output, satisfied, strain, rid ... of, lead a ... life, would rather, thanks to

b. 语法

The -ing form as subject and object.

2. Ability goals 能力目标

Enable Ss to master the usage of the words and expressions above and use the -ing form as subject and object correctly and freely.

3. Learning ability goals 学能目标

Help Ss learn how to use these words and expressions freely to express their ideas and use the -ing form as subject and object as they like. They can also practise actively and attentively so that they reach their goals.

Teaching important points 教学重点

The usage of the important words and the -ing form used as subject and object.

Teaching difficult points 教具难点

How to use the words and expressions and the -ing form freely.

Teaching methods 教学方法

Explaining, discussing and practising.

Teaching aids 教具准备

A projector and a computer.

Teaching procedures & ways 教学过程与方式

Grammar

一. 动名词做主语的用法

动名词做主语往往表示经常性、习惯性的动作, 在口语中也可以表示具体的动作。如:

Seeing is believing.

Helping her is my duty.

Talking mends no holes.

空谈无济于事。

Working with you is a pleasure.

和你一起工作是一种乐趣。

动名词做主语和不定式做主语一样,也可以用it作形式主语。如:

It's rather tiring walking around in a city.

不定式做主语往往表示具体的特别是将来的动作。如:

It's no use crying over spilt milk.

覆水难收。

He realized that to go on like this was wrong.

二.  动名词作宾语的用法

1.有些动词或短语动词后常用动名词作宾语。如admit, appreciate, avoid,can't stand(不能忍受), consider,delay, devote … to, dislike enjoy,escape, excuse, feel like, finish, forgive, get down to, give up,

imagine. insist on, keep (on), look forward to, mention, mind, miss(错过), pay attention to, practice, put off, stick to, suggest等等。

Doing morning exercises is good for your health.

做早操对你的健康有好处。

Her shoes wants mending.

她的鞋该修理了。

注意: 当 need, want, require, worth后面接doing也可以表示被动。

Your hair wants cutting.

你的头发该理了。

The floor requires washing.

地板需要冲洗。

I have finished writing this book.

我已经写完这本书了。

2. 在allow, advise, forbid, permit后直接跟动名词作宾语,如果有名词或代词作宾语,则构成“allow/advise/forbid/permit +名词/代词+不定式(宾语补足语)”之形式。如:

We don't allow smoking here.

We don't allow anybody to smoke here.

3. 动词need, require, want意为“需要”时,后跟动名词的主动式或不定式的被动式作宾语,意义没有区别。如:

The window needs/requires/wants cleaning/to be cleaned.

4. 在begin, continue, love, like, hate, prefer, intend, start后用动名词和

用不定式作宾语均可,意义没有多大区别。

5. 动词forget, go on, mean, regret, remember, stop, try, be used to, can't help后跟动名词和跟不定式区别较大,须注意。

forget, regret, remember后跟动名词,动名词表示已经发生的动作;后跟不定式表示将要发生的动作。

The Third Period Extensive Reading

Teaching goals 教学目标

1. Target language 目标语言

a. 重点词语

chemical, bacteria, pest, lead to, discovery, nutrition, keep…free from, root

b. 重点句型

With these discoveries, some farmer and many customers are beginning to turn to organic farming.

Over the past half century, using chemical fertilizers has become very common in farming.

2. Ability goals 能力目标

Enable Ss to master the main idea of the text and know the ways of organizing articles.

3. Learning ability goals 学能目标

Help Ss learn how to enlarge the words and structures of the same topic.

Teaching important and difficult points 教学重难点

1. How to grasp the main idea of the passage.

2. How to grasp the words and phrases and be able to use them freely.

Teaching methods 教学方法

Show questions, read fast, find the main ideas, and then read carefully and finish all the tasks.

Teaching aids 教学准备

A recorder and a projector.

Teaching procedures & ways 教学过程与方法

Step Ⅰ Greeting and revision

T: Morning, boys and girls! Do you still remember the poem I gave you last time?

Ss: Yeah!

T: Who’d like to recite it to the whole class?

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