高中英语《Unit2 Working the land》教案 新人教版必修4

Unit 2 Working the land

1.教材分析

The emphasis of this period will be placed on reviewing the important new words, expressions and sentence patterns in the parts Warming up, Pre-reading, Reading and Comprehending. In order to make students grasp and use these important points thoroughly.

2. 学情分析

Our Ss don’t like even hate to memorize words and language points; however they are the fundamental of learning English. This class will help them to memorize language points by exercises.

3. 教学目标

1.知识目标

1). Get Ss to go over the useful new words and expressions in this unit.

2). Have Ss review the new grammar item:动词-ing形式作主语和宾语

2.能力目标

1). Develop Ss’ ability to use the important language points in this unit.

2). Enable Ss to learn about the usage of v-ing.

3. 情感目标

1）Stimulate students' sense to form a revision habit

2) Develop students' sense of cooperative learning

4.教学重点

1.Get Ss to review and consolidate what they have learned in this unit.

2.Develop Ss’ ability to solve problems.

5.教学难点

1. Get Ss to turn what they have learned into their ability.

6.教学过程

Step 1 Revision

1.Check the homework exercises.

2.Dictate some useful new words and expressions in this unit.

Step 2 考点串串讲

一．重点单词

1. struggle

v.挣扎；努力；拼搏；斗争

n. (为争取自由、政治权利等而进行的)斗争，奋斗

常用结构：

struggle with与……斗争

struggle for 为争取……而斗争

struggle against与……斗争；为反对……而斗争

struggle to do sth. (=make great efforts to do sth.)

努力做某事

struggle to one’s feet 挣扎着站起来

She struggled to keep back the tears. 她努力忍住泪水。

It was a hard struggle to get my work done on time.

为使工作按时完成, 我做了一番努力。

易混辨析

struggle/fight

struggle指较长时间的、激烈的斗争，往往指肉体及精神上的战斗。

fight意为“搏斗，打斗，打架”，表示“斗争”时，包含体力和勇猛的因素。

2. expand

v.扩大；扩展；增加；增长；（使）膨胀；阐述；使变大

常用结构：

expand...into...将……扩展/发展成……

expand on 阐述；详谈

He is thinking of expanding his business.

他在正考虑扩大他的生意。

In ten years the city’s population expanded by 12%.

十年之中,该市人口增加了百分之十二。

联想拓展

expansion n.展开；膨胀；扩展 expansive adj.广阔的；易膨胀的

expand/extend/spread/stretch

expand 意为“展开，扩大”，不仅指尺寸的增加，还可指范围和体积的扩大。

extend 意为“伸出，延伸”，指空间范围的扩大及长度，宽度的向外延伸，也可指时间的延长。

spread 意为“传播；蔓延；铺开”。一般指向四面八方扩大传播的范围，如传播（疾病），散布（信息）等。

stretch 意为“伸展(身体等)，拉长；连绵”，一般指由曲变直，由短变长的伸展，不是加长。

3. equip

vt. & vi.配备；装备

常用结构：

equip sb./sth. with 用……武装某人；用……装备某物

equip sb./sth. for 为……而武装某人；为……而装备某物

a piece of office equipment 一件办公设备

They equipped themselves for the expedition.

他们为远征准备装备。

A good education should equip you for life.

良好的教育能使你受用终生。

4. regret

vt.& vi. 后悔；遗憾

n.遗憾；懊悔

常用结构：regret doing= regret having done=regret to have done 后悔做了某事regret to do遗憾将要做某事regret to say/tell/inform 遗憾地说/告诉/通知

much to one’s regret 深感遗憾 with regret 遗憾地

Tom regretted telling his parents the thing.

汤姆后悔告诉了父母那件事。

I regretted to tell you you hadn’t passed the driving test.

我很遗憾地告诉你你没有通过驾驶考试。

He told me with regret that he couldn’t come to the party.

他很抱歉地对我说他不能参加这个聚会了。

He gave up teaching in 1998, much to his students regret.

他于1998年放弃了教学，这使他的学生很遗憾。

5. reduce

vt.减少；缩小；降低；使……陷入某种更糟的状态

He is trying to reduce expenses. 他正试图减少开支。

We must gradually reduce the wage gap.

我们必须逐步缩小工资差距。

常用结构：

reduce sth. to... 减少到……

reduce sth. by... 减少了……

be reduced to 沦落为……

The shopkeeper reduced the price by ＄10. 店主把价格降了10美元。

The poor boy is reduced to begging. 那个可怜的孩子已沦为乞丐。

6. comment

vi.&vt.表达意见；作出评论

n.［C&U］评论；议论

常用结构：

comment on/about sth./sb. 对某事/某人进行评论

make comments/no comment on sth./sb.

对某事/某人进行评论/不进行评论

The scandal caused a lot of comment.

这件丑闻遭到很多议论。

“Will you resign, Minister?” “No comment!”

“部长，您是要辞职吗?”“无可奉告。”

重点短语

7. thanks to

由于；多亏（有时用作反语）;因为

Thanks to your help, we were successful. 由于你的帮助，我们成功了。

Thanks to the bad weather, the match had been cancelled.多亏了这倒霉的天气，比赛被取消了（反

联想拓展

表示“因为，由于”的短语还有：

because of，owing to，on account of，due to，as a result of。

温馨提示

以上这些都是介词短语，因此后面可以跟名词或动名词而不可以跟从句。

8. rid ...of

摆脱；除去

You should rid yourself of that bad habit.

你应该改掉那个坏习惯。

联想拓展

be rid of 摆脱

get rid of 摆脱；除掉；去掉

rid oneself of debt 还清债务

break away from 摆脱；放弃

You must break away from such a bad habit.

你必须改掉这样的坏习惯。

It won’t be long before we can be/get rid o f the pest altogether.

不用太久，我们就能把这种害虫消除干净。

9. would rather

宁愿，宁可

I’d rather you didn’t. (常用来委婉拒绝别人)我希望你不要。

He would rather stay at home watching TV. 他宁愿待在家里看电视。

I’d rather not go there. 我宁愿不去那里。

I’d rather you came tomorrow than today. 我宁愿你明天来而不是今天来。

I’d r ather have made a telephone call to him yesterday. 我昨天本想给他打个电话的。

联想拓展

would rather...than...是常用句式，意为“宁可（愿）……（而）不要（愿）……”would rather＋从句时，从句要用虚拟语气，用动词的过去时表示。

would rather have done 本想做……（而实际上未做）

10. lead to

通向；导致；造成（后果）

注意：lead to中的to为介词，该短语后可跟名词或动名词。

The car accident led to his being killed. 那次车祸导致他死亡。

All roads lead to Rome. 条条大路通罗马。

Eating too much sugar can lead to health problems. 吃太多糖会导致健康问题。

His carelessness led to his failure. 他的粗心导致了他的失败。

联想拓展

result in 导致 result from 由……导致

11. build up

逐步建立；逐渐增强；加强；树立；积累

The company has built up a fine reputation. 该公司已建立起良好的信誉。

You must build up your strength after your illness. 你在病后必须要增强体力。

12. focus on

集中（注意力、精力等）于……；对(某事或做某事)予以注意；使聚焦于；使直射于

He focused his mind on his lessons. 他把心思集中在功课上。

Today we’re g oing to focus on the question of homeless people. 今天, 我们主要讨论无家可归者的问题。

联想拓展

focus one’s attention on sth.= center/concentrate/fix one’s attention on sth. 集中注意力于……

重点句型

13. In 1974, he became the first agricultural pioneer in the world to grow rice that has a high output.

1974年，他成为世界上第一位种植高产水稻的农业先锋。

不定式放在表示次序的词the first, the last, the best以及the only, the very, the right 等词后面, 且这些词与动词不定式有逻辑上的主谓关系，结构为：the

first/last/best/only/very/right ...+n. + to do sth.表示“第一个/最后一个/最好的一个/唯一的/恰好的/合适的……做某事的人/物”。

He is always the first to come and the last to leave.

他总是第一个来并且最后一个离开。

The last man to leave the sinking ship was the captain.

最后一个离开正在下沉的船的那个人是船长。

14. Using his hybrid rice, farmers are producing harvests twice as large as before. 用他的杂交水稻种子，农民们种出的粮食比以前多了一倍。

倍数表达法：

A＋be＋倍数＋as＋adj.＋as＋B

A＋be＋倍数＋比较级＋than＋B

A＋be＋倍数＋（由某些形容词变化而来的）n.＋of＋B

I’m not going out with a man who’s twice as old as me. 我不愿意和一个年纪比我大一倍的男人一起参加社交活动。

We got three times as many people as expected. 来的人超过我们预料人数的两倍。You’re not half as clever as you think you are. 你可不像自己想像的一半那么聪明。

15. This also keeps the air, soil, water and crops free from chemicals.

这还可以让空气、土壤、水以及农作物不受化学物质的污染。

keep ...free from 无……的；免于……；摆脱……（常用作表语、后置定语或补语）

联想拓展

be free to do sth. 自由地做，随意地做

set sb. free 释放某人

get/give sth. for free免费得到/赠送

a smokeˉfree room/area无烟室/区

free of charge免费

板书设计

问题研讨（课堂提问，练习和作业设计）

课堂提问：

1.What do you think would happen if tomorrow there was suddenly no

rice to eat?

2.What are some of the problems caused by chemical fertilizers? 练习

单词拼写。根据下列句子及所缺单词的首字母或汉语意思，写出单词的正确形式。

1. The new from the front is very （令人不安的）.

2. There were several new forms of ________ (细菌) and nobody knew how they would

affect humans.

3. Air e when heated.

4. If you blood (循环)badly, your hands and feet will get cold easily.

5. This food provides the ________(营养) your dog needs.

6. The average ________(产量) of the factory is 20 cars a day.

7. We e______ rice but import wheat.

8. I bought the shirt because its price was r______ by 40%.

9. Give me a s______ of your report—I have no time to read right through it.

10. The sold iers were e with the latest weapons.

作业：

A level

单项选择

1. --- Shall I open the window to let some fresh air in? --- No, .

A. I’d rather not

B. I’d rather you not

C. I’d rather you didn’t

D. I’d like not to

2. Vitamin B and C help to your resistance.

A. set up

B. give up

C. build up

D. stand up

3. He got completely when he saw both Lucy and Lily, who are twin sisters.

A. confusing

B. confused

C. confuse

D. confuses

4. The professor referred to yesterday.

A. come

B. came

C. coming

D. comes

5. He insisted that he from heart trouble, but I didn’t think so.

A. should suffer

B. has suffered

C. suffers

D. was suffering

6. It is generally considered unwise to give a child he or she wants.

A. however

B. whatever

C. whichever

D. whenever

7 --- What happened to your shoes? --- They want .

A. to mend

B. being mended

C. mending

D. mended

8.---What do you think made Mary to upset? --- her new bicycle.

A. Losing

B. Lost

C. As she lost

D. Because of

9. The officers narrowly escaped in the hot battle.

A. have killed

B. to kill

C. to be killed

D. being killed

10. The students are listening to the teacher with their eyes the blackboard.

A. fixing on

B. fixing to

C. fixed on

D. fixed to

B level

11. Did you find impossible for him to tell the truth?

A. this

B. it

C. that

D. what

12. You but he the prizes to these gifted stu dents at the meeting.

A. is hanging out

B. are handing out

C. are to hand out

D. is to hand out

13. I will appreciate if you paid in cash.

A. that

B. you

C. this

D. it

14. If I ruled the world, I would _______ the world ______ everything that is bad.

A. get rid of; by

B. be rid of; by

C. rid; of

D. get rid; of

15. As is known to all, oranges are _______ Vitamin C.

A. rich in

B. poor with

C. short of

D. good

for

16. We found several _______ of rice near the hole. The mice may have stored a lot

of _______ in the hole.

A. grain; grain

B. grains; grains

C. grain; grains

D. grains; grain

17. Only then how much damage had been caused

A. did she realize

B. she realized

C. had she realized

D. she had realized

18. ---It’s five years since I worked here. --- ?

A. Where do you work now

B. Have you worked here happily

C. How long will you work here

D. Do you want to here longer

19. Three days enough to finish the work. Let my do it.

A. are

B. was

C. is

D. were

20. Progress so far has been very good. , we are sure that the project will

be completed on time.

A. However

B. Otherwise

C. Therefore

D. Besides

C level

根据汉语意思完成句子。

1. , his face and arms and his slim, strong body are just like those of millions of chinese farmers, he has the past five .

的确，他那被太阳晒得黝黑的脸庞和手臂，以及他那削瘦而又结实的身体，就跟其它千百

万的中国农民一样，过去50年来，他一直在努力帮助他们。

2. his hybrid rice, farmers are producing harvests as before.

多亏了他的杂交水稻，农民们种出的粮食比之前多一倍。

3.Dr Yuan quite his wife. However, he doesn’t being famous.

袁博士很满意他的生活。但他对自己的成名并不关心。

4.Dr Yuan his dream producing a kind of rice that could feed more people.

袁博士从梦中醒来，希望能种植一种可以养活更多人的水稻。

5. They keeping their soil rich and disease.

他们主要是想坚持土壤肥沃且免受病害。

6. I that I cannot help you.

很抱歉，我不能帮你的忙。

KEYS:

单词拼写

disturbing bacterium expands circulates nutrition output export reduced summary equipped

单项选择：

1-5 B C B B D 6-10 B C A D C 11-15 B C DCA 16-20DAACC

根据汉语意思完成句子。

1.Indeed; sunburnt; for whom; struggled for; decades.

2.Thanks to; twice as large.

3.is satisfied with; care about.

4. awoke from; with the hope of.

5.focus on; free of.

6.regret to say.

教学目标中的review the new grammar item:动词-ing形式作主语和宾语，教学过程中体现在哪里？

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