高中英语必修4Unit2 Working the land warming up课件

课件86张PPT。 Unit 2 Working the land Farmers weeding at noon,
Sweat down the field soon.
Who knows food on a plate,
Due to their tiring day.
Farming Are you from a farmer’s family? what do you know about farming?soilploughing cropsweather &climateIrrigating(灌溉)…… What do you know about “farming”?wheat sorghumrice corn Potatoes Staple food select the seeds plough the soil turn over the soil sow the seeds remove the weeds fertilize farming stepsWhat is the main food in all East Asian and Southeast Asian countries?What is the main food in all East Asian and Southeast Asian countries?Rice. It is said that there are 2.4 billion people to eat rice every day throughout the world. If there was no rice one day, what would happen?What do you think would happen if tomorrow there was suddenly no rice to eat?If that happened, people there would suffer from starvation. People would be panic(惊慌) and the whole country would get into trouble.In the late 1990s, Brown, an American scholar, came up with the theory of Chinese Menace(威胁), which said that in the 2030s, Chinese population will add up to 1.6 billion, and had the question who would feed the large population in China as well as in the world.Just at that time, a Chinese scientist declared to the world that China can solve the problem by himself and help to solve the same problem in the world.Father of Hybrid RiceA Pioneer For All PeopleYuan Longping works the land to do his research.Super Hybrid Ricethe rice that has a high output1.When and who did become the first agricultural pioneer in the world to grow rice that has a high output?2. What did Yuan Longping invent?In 1974,Yuan Longping Super hybrid riceTask 1 SkimmingWhat may be the style of the passage?
A. a story
B. a travel journal
C. a biography (An introduction
to a person)
Para1-2
Appearance:_________________________
Age:________
Occupation:___________________
Education:____________________________
Achievement: His research helps the UN in the battle
to ____________________;
He is considered to be an agricultural ________ .pioneersunburnt, slim, strong84Southwest Agricultural Collegescientist of farmingrid the world of hungerget rid of hungerA. is among the first to go into an area to live
or work there.
B. goes into unknown regions, such as outer space.
C. is the first to study a new area of knowledge.A pioneer is a person whooriental magical rice(东方魔稻)Para1-222%7%Thanks to Dr.Yuan!in
the
hunger
battlecirculating60%2.Now more than _____ of the rice
produced in China each year is
from this hybrid strain.1._____ of the world’s population are
fed from ____ of the farmland in China. 3. Dr. Yuan is now ____________ his knowledge in India, Vietnam and some less developed countries. Para1-2Task 2 ScanningFind out the main idea of each paragraph.A PIONEER FOR ALL PEOPLE Match the following headings with the right paragraphs.Para. 1 Dr Yuan’s appearance and his achievementTask 3 Careful readingQ1: What does Dr Yuan look like?He has a sunburnt face and arms and a slim, strong body. He is more like a farmer than a scientist.Q2: What is his achievement?He grows what is called super hybrid rice, which makes it possible to produce one-third more of the crop in the same fields.Para 2His biographyBorn in Beijing Southwest Agriculture College Hunger was a great problem
Saw the great need for increasing the rice output 200 million tons produced Circulating his knowledgea. He was born into a poor farmer’s family . b. He graduated from Southwest Agriculture college. c. In 1950,Chinese farmers produced 5.5 billion tons of rice. d. 20 billon tons of rice was produced by growing his hybrid rice. e. He searched for a way to increase rice outputs without expanding the area of fields. f. He helps rid the world of hunger by circulating  his knowledge in less developed countries.
Proper order: acbedfPut Dr. Yuan’s biography in the right order. Dr Yuan’s biographyWhich of the following description about Dr Yuan’s personality is not true?
He is satisfied with his life because he is
now rich and famous.
B. He cares little about money and fame.
C. He would rather work than lead a
comfortable life.
D. He enjoys a simpler life than most rich  and famous people.Para. 3 Dr Yuan’s personalityHis dreamsPara41) The first dream2) The second dreamProduce a kind of rice that could feed more peopleAs huge as a peanut
The first dream
As tall as sorghum As big as a corn
To export his rice so that it can be grown all over the world
The second dreamPersonal informationName:
Nationality:
Born:
Occupation:
Education:
Dream:
Achievements:
Hobbies:Personal information (Resume)Name:
Nationality:
Birth:
Age:
Occupation:
Education:
Personality:
Dreams:
Yuan LongpingChinese in 1930; in a poor family84Scientist of farmingSouthwest Agriculture College,in 1953 His first dream His second dreamcare little about money and famePersonal informationAchievements:Hobbies:grow rice that has a high outputlistening to violin musicplaying mah-jongswimmingreadingAgriculture in the pastPlow(plough) the fieldgrow some young plantsinsert the young plants into the fieldharvestAgriculture in the modern timesLanguage points for Reading I1. Have you ever grown any plants? If so, what did you do to grow them?
If so=If you have ever grown some plants.
so 表示“象那样的，如前所说的”，用于代替已陈述的事。如：
-----can you pass the exam?
------I hope so.
2. works the land
work vi./ vt. 经营,管理
work the land=grow crops on it 耕耘土地　
He works a big farm. 他经营着一个大的农场。3.struggle vi. 搏斗, 挣扎, 努力, 拼搏
They were struggling to get out the burning car. 他们挣扎着从烧着的车里往外爬。
She struggled up the stairs with her heavy bags. 她提着沉重的行李艰难地走上楼梯。
[搭配] struggle against
与…斗争，为反对…而斗争，
struggle for 为争取…而斗争4. Dr Yuan Longping grows what is called super hybrid rice.e.g. I don’t quite understand what you are explaining. Please watch what I am doing carefully.2) What =the thing(s) that1) Super 特级，超级____ the emperor saw was quite different from _____ the old minister told him.
A. What, that B. That, what
C. Which, that D. All, all It is pretty well understood _______ controls the flow of carbon dioxide in and out the atmosphere today.
A. that B. when
C. what D. how 5. This special strain of rice makes it possible to produce one-third more of the crop in the same fields.it 在句中作形式宾语, 真正的宾语为to produce…, 结构为: 动词(make, feel, think, regard…)+it +adj+ to do.e.g. We think it important to learn English well.I like ____ in the autumn when the weather is clear and bright.
A. This B. that C. it D. one.CThe guide thought ___ wrong to eat monkeys. A. this B. it is C. it D. that was6. Dr Yuan searched for a way to increase rice harvest without expanding the area of fields.
▲ search = try to find by looking for “搜查”。They searched everywhere but could not find the lost child. 他们各处都找遍了, 始终找不到丢失的小孩。
The home was searched but no one was found. 搜查了房屋但一个人也未发现。▲ search常用的搭配：
　 search sb./sth. 搜查某人/某物
search for sb./sth. 搜寻某人/某物
search sth./sb. for…搜查某物/某人以寻找……
in search of 寻找
search out 发现注意：
search sb.指“搜查某人”, 指对某人进行搜身。
search for sb.指“搜寻某人”, 指为了要找到某人进行搜寻, 相当于look for。例如：The policeman searched the thief to see what he had in his pockets. 警察搜查小偷, 看他口袋里有什么东西。
The villagers are searching for the missing child. 村民们正在搜寻那个失踪的孩子。7. Thanks to his research, the UN has more tools in the battle to rid the world of hunger.
1) thanks to表示“幸亏,多亏”多用于表达正面意思, 相当于感谢, 在句中作状语和表语。
Thanks to your help，much trouble was saved.
多亏你的帮助, 减少了许多麻烦。Animals’ living environments have been getting worse ___ the increase in industrial pollution. A. thanks to B. because C. as D. since2) rid…of … 使…摆脱/清除…
rid a house of mice 清除室内老鼠
rid oneself of debt 还清债务
[类似用法动词]：
inform/ warn/ cure…of…,
The sales manager asked his men to inform him of everything concerning the sales in time. 销售部经理让他手下的人把关于销售量的情况及时报告他。8. Using his hybrid rice, farmers are producing harvests twice as large as before.
英语中的倍数表达法共有三种形式:
(1) 倍数 + 形容词/副词的比较级 + than...
(2) 倍数 + as +形容词/副词的原级 + as...　(3) 倍数 + the + 名词+ of...
This building is five times higher than that one. 这座楼比那座楼高出五倍。
This building is five times as high as that one. 这座楼是那座楼的五倍高。This building is five times the height of that one. 这座楼是那座楼的五倍高。
The new building is four times the size of the old one.
It is reported that the United States uses ___ energy as the whole of Europe. A. as twice?? ?? B. twice much??
C. twice much as? ?? D. twice as much9. And he would much rather keep time for his hobbies.
would rather 宁愿，宁可
He’d rather work in the countryside.
[用法1]：would rather…than… 宁愿…而不…，与其…不如…
I would rather watch TV at home than go to the cinema.[用法2]：would … rather than… =would rather…than…
Facing the enemies, our soldiers would die rather than surrender. 面对敌人, 我们的战士宁死不屈。
Rather than refuse to help you, I would borrow money from my friends. 我宁可向朋友借钱, 也不愿拒绝帮助你。[用法3]：would rather后面也可跟从句表示主语宁愿某人做某事。这时，从句谓语应用虚拟语气，即用一般过去时表示现在或将来要做的事；用过去完成时表示已经做过的事或过去要做的事。
I’d rather you hadn’t told him the news that day.[用法4]: would rather have done sth. 表示主语要做某事, 而结果却事与愿违。
I’d rather have left a note on her desk.
我本想留张字条在她的书桌上。 (事实上没有) [高考链接]
---- Shall we go skating or stay at home?
---- Which ____ do yourself? (’05 全国）
do you rather B. would you rather
C. will you rather D. should you rather答案B would rather do sth. 更喜欢做…1) too much 与much too的区别
too much通常位于动词之后,修饰动词,too做much的状语,后面也可接名词。 10. Indeed, he believes that a person with too much money has more rather than fewer troubles.She does talk too much, doesn’t she?
He has too much work to do.
而much too则常用在形容词或副词之前修饰形容词或副词。
The dress is much too long for me. 这衣服我穿太长了。
I got into the taxi and drove much too fast. 我上了出租车, 并开得飞快。2) rather than 而不是
Mary, rather than her roommates, is going to Beijing. 要去北京的是玛丽, 而不是她的室友们。 注意: rather than 连接两个名词或代词作主语时,谓语动词应与rather than 前面的名词或代词在人称和数上保持一致。
She ran rather than walked. 她跑着而不是走着。He is a student rather than a worker. 他是学生,不是工人。?
They lost some books rather than money. 他们丢了一些书, 而不是钱。
I decided to write rather than (to) telephone. 我决定写信而不打电话。11. He therefore gives millions of yuan to equip others for their research in agriculture.
Therefore adv. 因此，因而
equip vt. 装备，配备，供给，提供
He equipped himself for a long journey. 他为长途旅行准备行装。
Proper education will equip one for a job. 接受一定的教育就使你具备就业的能力.1.What does Dr Yuan look like?
He has a sunburnt face and arms and a slim, strong body. He is more like a farmer than a scientist.2.What’s his achievement?He grows what is called super hybrid rice, which makes it possible to produce one-third more of the crop in the same fields. Using his hybrid rice farmers’ producing harvests twice as large as before.3.What do you think of him?
He doesn’t like money because he gives millions of yuan to equip others for their research in agriculture. He doesn’t like fame,either though he has made great contributions to the world. He’s really respectable.4.Why did Dr Yuan want to increase the rice output when he was young?
Dr Yuan wanted to increase the rice output because he saw many people go hungry when he was young.5. How does he help rid the world of hunger?
He helps the world get rid of hunger by spreading his knowledge in foreign countries.
6. What kind of life is Dr Yuan leading?
Dr Yuan is leading a simple life, doing his research, listening to his music and riding his motor-bike.7. Use a few words to describe Dr Yuan’s personality.
Dr Yuan is a simple, academic man who is more interested in helping others than being famous.
If you had the chance to do something to help end hunger in the world, what would you do ?DiscussionThere is still hunger in the world.The measures taken to deal with hungerInvent a new kind of plant to produce more food.Find a new sort of fertilizer(肥料)to give rice enough nutritionFind some new ways to stop the pollution to the environment and protect the soil in the field.Farmers weeding at noon,
Sweat down the field soon.
Who knows food on a plate,
Due to their tiring day.
News 1:
The world price of rice has risen by over 100 %
compared with that of last year, which disturbs many
countries now.Hunger riot (饥饿暴动)worriesNews 2.
The hunger problem is expanding in the world.
Therefore...
Some poor people in Hayti have to eat the mud cakes as
their main food now.the mud cakes News 3.
To rid the India of hunger, the Indian government
decided to cut down the export of rice.
Facing the problem, people in India only have two meals
one day.Two meals are enough for children?5 million children die of hunger every year. He struggled to help them.He struggled for the past five decadesT or F 1 Dr Yuan is more like a farmer than a
scientist.
2 Dr Yuan’s rice is one of the most
suitable ways for China’s farmland.
3 Dr Yuan would rather work than relax.
4 Dr Yuan has dreams when he is asleep
and also when he is awake.
5 Dr Yuan enjoys a simpler life than
most rich and famous people.Personal informationAchievements:Hobbies:grow rice that has a high outputcirculate his knowledge abroadgive money to equip others for their research
listening to violin musicplaying mah-jongswimmingreading