重大版高中英语4册Unit4教案.doc

Unit 4 Three Gorges
Teaching Aims:
1.Know the use of the new words-
2.Improve the Ss5 reading ability
Teaching Important Points:
1.Improve the Ss，reading ability.
2.The new words.
nguage points
Teaching Difficult Points:
Improve the Ss? reading ability.
Master the new words・
Language points.
Teaching Aids:
a tape recorder
a projector
the blackboard
Teaching procedures:
Period 1 getting ready
Step 1: greeting
Step2: free talk
Three gorges
Do you like traveling? Have you ever been to the Three Gorges? Can you give a description of your experience? Do you know the names of the three gorges?
Three gorges:瞿塘峡巫峡西陵峡
Step 3: brief introduction of Three gorges
Look at the picture.
三峡水电站，乂称三峡工程、三峡人坝。

它是世界上规模最大的水电站，也是中国有史以來建设最大型的工程项目。

三峡水电站1992年获得中国全国人民代表大会批准建设，1994年」E式动工兴建，2003年开始蓄水发电，于2009年全部完工。

移民是三峡工程最大的难点，在工程总投资屮，川于移民安置的经费便占到了45%o由于重庆市在移民问题上的积极性和主导性，1997年6月14 H,中央政府决定将重庆升格为总辖市.
Step 4: task 1
Look at the map and complete the following tasks.
1)Find the area which is to be flooded in the map and circle it.
2)Mark out the site of the Three Gorges Dam.
Step 5: task 2
With the closure of the Three Gorge Dam across the Changjiang River, what did the people there have to do?
They had to leave their native place (where) and resettle in some higher places or even other
provinces （where）.
Step 5: task 3
Read the following words from the article. Consult your dictionary if they are new to you.
Migrate Migrants Migration Evacuate
migrate [f maigreit] vi.
1.迁移;移居
2.（候鸟等）定期移栖;（鱼群）回游
When did Asians begin to migrate to the United States?亚洲人何时开始向美国移民的?
Large numbers of birds migrate south every winter.每年冬季人量的鸟类迁徙南方° migration [mai grei art] n. 1.迁移;（候鸟等的）迁徙[U][C]2.移民群;移栖动物群[C] migrant ['maigr^ntjadj.移居（尤指移出国境）的;流浪的
/7. 1.移民;移居者2.候冈3.随季节迁移的民工（或动物）
evacuate [i vcekjueit] vt. 1.撤空,撤离;从…撤追2.使避难，使疏散f（+from）]
The village was evacuated because of flood.由于洪水这个村了已经撤空。

The civilians were evacuated from the city to farms.百姓被从城里疏散到j"农庄。

Step 6: summary and homework
1. After meticulous feasibility studies by experts, it was finally concluded that the merits of the project far overweigh its demerits. On April 3, 1992, the National People's Congress approved the construction of the project. The Three Gorges Project has its main benefits in flood control, power generation and navigation. The project can raise flood control capacity from the present 10-year frequency to 100-year frequency.
The project also presents daunting problems which should be properly handled and solved to avoid any possible undesired impacts. These include resettlement of population, environmental protection, fund raising, etc.
About 1 million people will be relocated owing to the construction of the project. The government has attached great importance to the issue and decided to appropriate large sums of money for the resettlement program. The guiding principle of the program is that the life of the relocates can only be improved・ For this purpose, the government has adopted development-oriented resettlement, in other words, to combine resettlement with local economic developmen匚Therefore, they feel quite at home and enjoy a better living in their new homes•
3. Let students preview the reading part
Period 2 Reading and Comprehending
Step 1: greeting
Stcp2: fast reading
1.Read through the passage quickly and find the answer to the following question.
Q: Where did Li Chaohua, his family and 610 other people leave and resettle?
A: They left their native place、Zhongxian County in Chongqing, and resettled in Guangrao County, Shnndong Province・
Step 3: careful reading
Q: When will the Three Gorges Project have been completed how many people will need to have been moved?
A: It will be completed by 2009、and 125,000 people will need to have been evacuated.
Step 4: task 1
Scan Para. 3 -5 of the passage and decide which group the following words and expressions belong to.
Migrants Host Villagers
set apart land and built houses H moved to another province M prepared the rice and hot pepper M were invited to have jiaozi M tears rolling down M left for Guangrao County M waved their hands M made arrangement H settled down M lit firecrackers H
evacuated M beat drums H
gathered at the bank M
Step 5: task 2
Retell the story about how the migrants left their hometown and were welcomed by the host villagers with the help of the information in Task 1
At the end of 2000. over 600 evacuees left their native place and resettled in Guangrao County, Shandong Province. As far back as 1991 and 1992, the Chinese governments ai various levels knew that by 2009, when the Three Gorges Project is completed, a total of 1,084 km2 will be flooded and 1,250,000 people will need to have been evacuated. The evacuation was to be carried out in two stages・ The first stage guaranteed the closure of the dam across the Yangtze River.
The second stage of evacuation was started in 1998 and in August 2(X)0, people in the would-be flooded area began to migrate to other places・ On the morning when the first migration group were leaving, people gathered at the bank to see them off. The migrants on board waved their hands to those their friends, tears rolling down their cheeks.
Even before the migrants arrived, the people of Guangrao County put the settlement of the migrants above all else・ They set apart land, built houses and prepared food for them・ On the migrants? arrival, the villagers beat drums and lit firecrackers as if they were celebrating a festival.
Although it will take time for the migrants to get used to the life in Guangrao County, the migration has given them an opportunity to improve their production conditions and life style. Step 6: Homework How do you understand the last sentence of the article?
In the new land they can plant some new crops and have a better harvest because the former farmland had been cultivated for a long time・ Furthermore, the communication with the local people in Guangrao County could provide these evacuees with another chance to enjoy a new way of living.
Period 3 & 4 Language Focus
Step 1: Greeting
Step 2: language points in the text
1.at the end （of）在…最后，在…尽头。

根据需要可接（of）,后可接时I'可名词也可接地点名词。

如：在街道的末尾有一家医院。

There is a hospital at the end of the street.
上个月末，一肓都在下用。

It was raining at the end of last month.
②by the end of意为“到……为此”，常常用于完成吋。

如：到下周末我们将会完成这幢
大楼。

By the end of next week we will have finished the building.
我们的新图书馆是在上个月末完工的。

By the end of last month our new library had been built.
扩展：come to an end结束
put an end to 结朿，制止
make ends meet量入为出
odds and ends杂七杂八的东西
2.（1） evacuee—the person who is evacuated（被疏散的人）
后缀・ee表示“被......的人”。

employee: the person who is employed （被雇佣的人）
trainee: the person who is trained （被训练的人；新兵）
trustee: the person who is trusted （被信赖的人；可信的人）
interviewee: the person who is interviewed（被釆访的人）
⑵moving to another province from...是现在分词短语，作定语，与其修饰的名词Z间存在主动关系（主谓关系）。

"J转换成定语从句。

二who will move go another province from... 如：与会的人员都是专家和学者。

The people coming to the conference are all experts and scholars.
［扩展］v-ing, v-ed, to do都能作定语，但意义有所不同：
1）v-ing可作前置定语也可作后置定语，与其修饰的名词之间存在主动关系（主谓关系）或表达进行意义。

The houses being built are for the teachers.
I have never seen a more moving movie.
2）v-ed常作后置定语，强调与其修饰的名词之间存在的被动关系（动宾关系）或表达完成意义。

Things lost never come again.
3)to do常作后置定语，不定式作定语为被修饰的中心词Z间常表现为主谓关系或者动宾关系。

侧重表达不定式的动作稍后发生。

The Browns have a comfortable house to live in.
The car to be bought is for his siste匚
3.As far back as 1991 and 1992, the Chinese Changjiang River Water Conservation Committee and governments at various levels in the area of the Three Gorges Project knew that by 2009, when the project is completed, a total of 1,084 square kilometers of land will be flooded and 125,00 people in 268 of towns and townships in 20 districts and counties will need to have been evacuated.远在1991年到1992年这段期间，中国长江水资源保护委员会和三峡库区的各级政府就已经充分意识到，在2009年三峡匸程完全竣工前，将有总面积约1, ()84平方公里的土地会被淹没，20个区县的268个镇和镇一级的125, 000人需要重新安置。

(1)句子成分主语：委员会和政府谓语：knew宾从：that ............. e vacuated非限制性定从：when... completed
(2)as far back as 199land 1992 相当于as early as 1991 and 1992
(3)at various level表示“各级的;各个水平的;各种水平的”
4.The evacuation was to be carried out in two stages.整个移民女置计划分两个阶段进行。

(1)todo sth是将来吋的一种表达法，表示“表示打算或即将做某事二
The plane is to take off, hurry up, please. 请快点，飞机即将起飞了。

将来时的具他表达法：
①be going to
②will/shall do (shall只用于第一人称)
③be about to do....when 正打算做某事....这时
1 was about to jump into the river when a man shouted to me.我正要跳河这时有个男的对我高呼。

(2)carry out实现；完成；实行。

强调结果，表示“实现”。

carry on继续；连续。

强调过程，表示“执行”。

Our plan must be carried on until it is carried out.我们的计划必须执行下去直到将它实现。

5.It guaranteed the closure of the dam across the Changjiang River. 这有力地确保了长江流域的成功。

(1)guarantee n. 1)保证；担保;保证书2)担保品：抵押品3)担保人
Hard working is the guarantee of success.辛勤工作是成功的保证
He offered his house as a guarantee.他以房屋为担保
Don't worry, 1 may stand guarantee for her.别担心，我nJ以做她的扌口保人
(2)vt.对......提出担保
I want my safety guaranteed.我希望安全得到保证
We must guarantee to carry out the tasks.我们必须保证完成任务
6....people gathered at the bank to see them off.父老乡亲们齐聚岸边为他们送行。

(1) gather vt. vi.
1)使…集合；聚集
The teacher gathered the pupils round her to tell them a fable.
老帅把学生们聚集在她周围给他们讲个寓言故事。

2)收集：搜集；采集：收拾；收获
Gather your toys up.把你的玩貝收拾起來。

3)推断；得出结论;了解
What did you gather from his statement?
［辨析_］gather 和collect
①都含有“收集”，“聚集"的意思，常可通用。

gather系常用词，指“收集”、“聚集”、“集合在一起的，也可指把分散的东西或抽象的东西（如信息，力量）聚集起來。

②collect指“有计划、有选择地收集；收藏”。

当我们要有计划，有条理，为某种目的而进行细致的、有选择的收集时
（2） see sb. off为某人送行
7.As the passenger liner was pulling out, the migrants on board waved their hands to those who had not yet been evacuated, tears rolling down their cheeks.随着客伦缓缓驶出港U,船上的移民使劲地向就未迁移的乡亲们挥手告别，热泪早己夺眶而出。

（1）pull out （军队）撤离;（火车,船）开出
（2）tears rolling down their cheeks 是"独立主格"作伴随状语，It结构为:/7.+v-ing
I can't go to sleep, children singing loudly outside.由于孩子们在外面高声歌唱,我无法入睡。

（原因状语）
［注意］“独立主格”前往往加with
如:由于老师的指导，我们的实验很快就成功了。

With the teacher instructing in the experiment, we succeeded very soon.
① with+ n. Ipron. +介词短语
The teacher came into the classroom with a book in his hand.= The teacher came into the classroom, book in hand.
②with +n. Ipron. +副词
With Mr, Smith away, we've got more room.
③with+ n./pron. + 不定式
With so many dishes to wash, he couldn't go out for play.
④with + n./pron. +过去分词
The man was brought in, with his hands tied behind his back.
⑤with +n./pron. + 形容词
In winter I like sleeping with all windows open.
8. put... above all else/ put...above anything else '‘把 .... 置于重要地位,把 .... 当成头等大事 set up 竖起/支起;建立
(2) make arrangement = arrange 为 .... 做安排
make arrangement for 为 ... 做好安排 make arrangement for sb. to do sth.为某人安排好做某事
10. as 讦二as though "好像”引导虚拟语气
⑴为现在事实相反:V 过去式(were/was)
He looked after me so well as if I were his wife.
(2)与过去事实相反：过去完成时had + done
He looked as if he had seen a ghost.
他看起來好像见到鬼似的。

(3) as if / though 从句中的省略：当as if 和as though 从句的主语与主句主语一-致时，该主 语和后面的动词可以省略。

He lay still for a long while, as if (he is) dead.他长时间地静静地躺着,好像要死人一样。

He acted as if (he was) a fool.他的行为像傻子样°
Step 3: task 1
Practice reading the following figures with your partner.
9,372,614 km2: nine million three hundred and seventy-two thousand six hundred and fourteen square kilometers.
US$ 78,000: seventy-eight thousand US dollars
1,084 square kilometers: one thousand and eighty four square kilometers
1,250,000 people: one million two hundred and fifty thousand people
來抓”。

put about 散步,（消息）宣称
put across 解释,表达
put aside 节省出（钱，时间）等，储存…以 备
用
put away 放好，收好，储存…以备用
put down 写下;记下;控制;击败;平定;取缔
put forward 提出億见，建议）;推荐;提名;推
举 put in 打断;插嘴;进港;进入并作短暂停留
9. （1） set apart 留出;拨出
set about doing 着手/开始做某事
set down 放下，记下
set off （for ）动身，出发（去）
set out to do sth. 开始/着手/准备做某事 put off 延期;推迟 put on 表演;演出;上演（戏剧）;穿上;戴上 put out 熄灭;关熄，扑灭 put through 接通电话 put up 举起;抬起涨开（伞）涨贴;公布 put up with 忍受;忍耐;受苦 as sb put it
11. opportunity n.机会；时机 offer sb. an
opportunity 给某人一个机会 get an/the
opportunity 得到一次机会 make an / the
opportunity 仓造机会 miss an / the opportunity 失去机会 seize an / the opportunity 抓住机会 take an / the opportunity 利用机会 a golden opportunity 绝好的机会 let an opportunity slip 坐失良机
have an / the opportunity to do sth •有做某事 的机会
3/4 of the class: three fourths of the class
The year of 2009: the year of two thousand and nine
83.4% of the earth: eighty-three point four percent of the earth
150 families: one hundred and fifty families
Room 6103: Room six one o three
960 billion m3: nine hundred and sixty billion cubic meters
Step 4: task 2
1.Find the words and expressions in the article to match the following definitions.
Step 5: task 3
plete the foolowing sentences with the proper forms of the words and expressions you get in Practice 1.
3.Fill in the blanks with the proper forms of the words given, paying attention to the differences in meanings among them.
Step 6: summary and homework
Period 5: Grammar
Step 1: Greeting
Step 2: analyze part of speech of infinite
(showing pictures)
Look at the following pictures, paying attention to the different part of speech of "to fly” in each sentence.
A: What was your dream in childhood?
B: To fly was my dream. Subject 主语
A: What do you want to do?
B: I want to fly in the sky. Object 宾语
A: What is your plan this weekend?
B: My plan is to fly across the Atlantic Ocean・Predicative 表语
A: Why are you wearing a pair of wings?
B: I wear wings to fly like a bird・ Adverbial 状语
A: What is our mission today?
B: We have a lot of food and medicine to fly to the area. Attributive 定语
Step 3： task 1
Tell the usages of the infinitives in the following sentences.
1)Dr. Bush wants to have a sound sleep. 宾语
2)To climb the high mountain seems an impossible task to my grandparents・主语
3)It is possible to finish the work in a week's time・主语
4)What do you think is the right thing to do?定语
5)My wish is to become a physicist. 表语
6)Tom found it easy to master a foreign language・宾语
7)He often goes to the cyber cafe to chat with his no-line friends. 冃的状语
Step 4： summary of infinitive
一.不定式作主语，通常用it做形式主语
1. It be + for sb + to do sth
It is difficult for you to study math.
2.1 be + of sb + to do sth
It is kind of you to help me.
二.不定式作表语
主IS•是以aim, duty, hope, idea, intention, mistake, plan, proposal, job, suggestion 等为可“勺名词词组，或以what引导的名词性从句表示，后面的不定式说明其内容，如：
My idea is to climb the mountain from the north.
Your mistake was not to write that letter.
My suggestion is to start work at once.
What I would suggest is to start work at once.
前有do,后省to
All I could do was send him a telephone./ The child did nothing except cry.
I have no choice but to sleep・
三.V + todo/V+ 疑问词 + to do
这类动词常见的有:afford, agree, arrange, ask, choose, decide, demand, desire, expect, hope, learn, manage, offer, pretend, promise, refuse, want, wish, like, hate, prefer, continue, try, start, forget, mean, intend, begin, 等，例女［1：
Fve arranged to meet him at ten o'clock.
I didn't think / expect to find you here・
△ I don't know what to do / where to go / who(m) to ask / when to stop / how to get there.
I haven't decided whether to sell it or not.
We must find out what to do next / where to put it.
四.不定式结构作定语
不定式作定语通常只能放在被修饰的名词Z后，如：
It's time to go to bed.
I want to get something to read during the vocation.
Have you anything to declare?
AShe has a lot of things to attend 9・
The nurse has five children to look after.
Let's first find a room to put the things in
五.不定式结构作状语
不定式结构可以作状语，修饰动词、形容词、副词等，表示口的、原因、结果、条件等。

He went home to see his mother. 原因
What have I said to make you so angry? 结杲
结果句型
①so ...as to ...
Would you be so kind as to lend me your bicycle / tell me the time?
②such (...) as to •…
Pm not such a fool as to believe that.
③enough to・•・
The boy is old enough to go to school.
④too…to…
His eyesight is too poor to read such small letters.
六.不定式作宾语补足语
△下列动词用不定式作宾语补足语时，必须省去不定式符号to：
let, make, have, see, watch, notice, look at, observe, hear, listen to Teacher let us read every morning
We noticed him entered the room・
被动to还原
We are made to read every morning.
He was noticed to enter the room.
Step 5: task 2
Translate the following sentences into English by using infinitive.
Step 6: more exercise and homework
Period 6&7 Further Reading
Step 1: Greeting
Step 2: Fast- reading
Read through the passage The Three Gorges on page 55 and find out the answer to the following question.
1.What are the three gorges? Qutang Gorge Wu Gorge Xiling Gorge
2.What is special to the three gorges?
Qutang Gorge is known for its magnificence with many scenic spots. Wu Gorge is famous for its deep valley and quite beauty. Xiling Gorge is also composed of many scenic spots and cultural relics.
Step 3: Scanning
Scan the passage and find the exact figures for the following.
1)The total length of the Yangtze River is 6,380 kilometers.
2)The Three Gorges extends totally 192 kilometers in length.
3)Qutang Gorge is only 8 kilometers Iong.
4)Wu Gorge is 44 kilometres long.
5)Xiling Gorge covers 66 kilometres in length.
Step 4: Skimming
Read the following statements and decide whether they are true(T) or false(F) , and correct the mistakes・
Step 5: Language points
1•…,winds its way like a giant dragon 6,380 km (nearly 3,900 miles) on its way to deposit its annual 960 billion ...
1) occupy vt.意为"take up or fill (time, space, sb's mind, etc)""占据,充满(时间,空间, 某人的头脑等)”。

The bed occupied the corner of the room ・
2) occupy 意为 "take possession of and establish troops in (a country, position, etc)" “(军事)占， 领(国家、阵地等)”。

The army occupied the enemy's capital.
3) occupy 意为"live in or have possession of (a house, land, etc)""占用,占有(房屋、土地等)
They occupy the house next door.
4) . occupy oneself (in doing sth/with sth)"忙着(做某事)；忙(于某事)”。

How does he occupy himself now he is retired?
3. Xiling Gorge, extending 66 kilometers in length, is also composed of many scenic spots ...
1) extend vt.
延长,延伸;扩大，扩展
Can't you extend your visit for a few days?你们访问的时间不能延长几天吗？
伸，伸出
He extended his hand in greeting.他伸出手来表示欢迎。

2) be composed of:"由…组成”,相当于 consist of 和 be made up of.
In fact, happiness may be composed of anything you could ever think of. 当然，H ―些人 只要基本的工活需求得到满足就可以立刻感到很幸福。

Step 6: Practice and homework
Complete the following sentences with the proper forms of the words or phrases given. wind vt.使迂回而行，弯弯曲曲地通过
by way of someplace 途径某地 in the way 妨碍
show somebody the way 为某人引路
mend one's ways 改邪归正 just the other way 恰恰相反
2•…the Yangtze River passes through an area
pass through 经过；通过；经历 occupy 用法小结：
in any way 无论如何 in no way 无论如何不;决不 give way (to)退让 on the way 在途中
on one's way to ........ 到 ... 去的途屮 occupied by more than 400 million people ，
•…。