人教版高一英语必修4 Unit2 Working the land Reading 课件（共35张PPT）

Unit 2 Working the land
pre-reading
What problem do they show ?
How do you feel
when you see the pictures?
How much land can be used for farming?
3/4 of our earth is covered with water!
2. 1/2 of this piece is too hot, cold, or wet for farming!
3. 3/4 of this part is used for roads, buildings like houses, schools!
4. Only 1/32 of the earth is used for farming!
①
②
③
④
⑤
Super hybrid rice
Task 1 Scanning
Para1 A. Dr Yuan’s dreams.
Para2 B. Dr Yuan’s personality.
Para3 C. Dr Yuan’s biography.
Para4 D. Dr Yuan’s appearance
and his achievement.
Para 1 Appearance and Achievement.
Appearance
face:
arm:
body:
sunburnt
sunburnt
slim but strong
looks like a______
farmer
Although he is one of China’s most famous scientists, Yuan Longping considers himself a farmer, for he works the land to do his research.
Indeed, his sunburnt face and arms and his slim, strong body are just like those of millions of Chinese farmers, for whom he struggled for the past five decades.
Dr Yuan is like more a farmer than a scientist.
Para 1 appearance and achievement.
Appearance
face:
arm:
body:
sunburnt
sunburnt
slim but strong
looks like a______
farmer
2. achievements
He grows what is called_____________, which makes it possible to produce_________ more of the crop in the same fields.
super hybrid rice
one-fifth
Para. 2 His biography
Time
information
1930
1953
As a young man
In a recent
harvest
now
Born in Beijing
Graduated from college
Hunger was a disturbing problem. search for a way to increase the rice harvest.
200 million tons was produced
Circulating his knowledge
22%
7%
Means?
UN rid the world of hunger
Thanks to his research, the UN has more tools in the battle to rid the world of hunger.
由于他的研究，联合国在消除世界饥饿的战斗中有了更多的方法．
Using his hybrid rice, farmers are producing harvests twice as large as before.
using 作状语，修饰后面整个句子
Paragraph 3
Topic sentence?
Dr Yuan is quite satisfied with his life.
He doesn’t care about ______ and _______. He likes freedom for his search and hobbies.
fame
money
Personality
Para 4: his dreams
His first dream
His second dream
▲As tall as sorghum
▲ As big as an ear
of corn
▲As huge as a peanut
To export his rice so that it can be
grown around the globe.
1.???? himself (as) a farmer 认为他自己是个农民
2.???? the land ??耕种土地，在田间耕作
3.????do one’s ??进行研究
4.???? face and arms??被太阳晒黑的脸庞和手臂
5.????the past five ??在过去的50年里
6.????the first agricultural pioneer rice
第一个种高产水稻的农业先锋
7.???a high ??高产量
8. graduate Southwest Agricultural College?
从西南农学院毕业
9. life ?人生目标
10. the great need ??对……巨大的需求
11. a problem??一个令人烦恼的问题
12. search ??寻找
13. without _ __ the area of fields不扩大农田面积
14. one’s knowledge???传播知识
15. developed countries??欠发达国家
16. ?幸亏，由于
17. the world hunger??消除（解决）世界饥饿
18. harvests twice before??产量是从前的两倍
19. be quite ???对…….非常满意
20. care ???喜欢；照顾；关心；
__ _ little about对…很少关心
21. would rather sth.??宁愿做……
22. spend … ?在...上花费...
23. a comfortable life??过舒适的生活
24. rather ???而不是
25. _______sb. for 使…做好准备，为…装备
26.give him less _ to do sth
给他更少的自由…
27._ _ from 从…中醒来
28. the hope of??? 怀着……希望
29._ _ rice出口大米
30. the globe???全球，全世界
31. make it possible ________ _…使…成为可能
As a young man, he saw the great need for increasing the rice output.
At that time, hunger was a disturbing problem in many parts of the countryside.
When he was young, he know how important it was to produce bigger rice crops.
= it is important to…
= doing sth. is important/of great importance
During his early years, much of the countryside was troubled by hunger.
= be badly influenced/affected by
have a bad effect on…
Using his hybrid rice, farmers are producing harvests twice as large as before.
Spending money on himself or leading a comfortable life also means very little to him.
As they use his hybrid rice, farmers are producing twice as much rice as before.
He is not interested in/cares little about buying things for himself or having a…
Just dreaming for things, however, costs nothing.
It doesn’t cost anything to dream for something.
A3 B篇
What is CA?
What are the three principles of CA?
How does CA help reduce soil damage?
What are the functions of cover crops?
What is the rotation of crops?
It is meant to keep soil healthy, develop sustainable farming, and prevent the damaging overuse of land.
Gaining popularity…, CA aims to help famers keep land healthy and productive by…
become popular
Control tillage
What is tillage?
turn over
nutrient
current
unusable
By avoiding tilling, organic soil matter may actually benefit as crop pieces form a protective surface over the soil.
cover crops
These crops prevent water and soil loss by…
Cover crops also…
By cycling crops that need different nutrients through the same field, the soil…
Ⅰ. statistics sunburnt output circulated nationality
struggled decade regret Therefore nutrition
Ⅱ.
A) 1.根据 2.build up 3. 幸亏，由于 4. lead to
5. 对…感到满意 6. focus on 7. 宁愿，宁可
8. keep…free from/of 9. 摆脱，除去
10. with the hope of
1. with the hope of 2. lead to
3. build up 4. would rather 5. keep free from
6. be focused on 7. was satisfied with
8. According to 9. Thanks to
10. rid of
Ⅰ.
underline summary exports
bacteria chemical expands
Ⅱ.
production hungry disturbing freedom
equipment occupation confusing
discovery comments reduced
Ⅲ.
more than cared for as as
put back done research on
_____ the past half century 在过去的半个世纪期间
______ fertilizers 化学肥料
______use of …的长期使用
cause ______ to 对…造成伤害
______ off 洗掉
food_____ 食品供应
______cancer 导致癌症
In ______ 另外，此外
turn to_____ farming 转向有机农业
____ on 集中…于
____ soil ____ ____disease 使土壤免受疾病的影响
every____ _____ 每隔几年
12. make______ ready for 使…为做好准备
13. put down_____ 扎根
14. avoid______ 避免做某事
What are some of the problems caused by chemical fertilizers?
In addition, fruit, vegetables and other food grown with chemical fertilizers usually grow too fast to be full of much nutrition.
化肥带来的问题有哪些呢？
另外，施过化肥的水果、蔬菜和其他食物通常生长得过快而营养不足。
过去分词作定语
3. Crops such as peas or soybeans put important minerals back into the soil, making it reading for crops such as wheat or corn that need rich and fertile soil.
像豌豆或者大豆这样的农作物将重要的矿物质带回土壤，从而使之适宜于种植要求土壤肥沃的农作物比如玉米或者小麦。
现在分词做定语
4. Organic farmers also plant crops to use different levels of soil, for example, planting peanuts that use the ground surface followed by vegetables that put down deep roots.
有机耕作的农民还种植多种农作物来利用不同层次的土壤。比如，他们先种植生长于浅层土壤的花生，然后再种植生根于深层土壤的蔬菜。
过去分词作定语
take place
turn up
set off
get away with
cut down
bring up
account for
break out
rather than
settle down
move off
come across
carry on
build up
发生
出现，到场，调大
出发，动身，使爆炸
不因…受惩罚
砍倒，削减，删节
抚养，培养，教育，提出
是…的原因，解释
爆发，突发
与其，不愿
定居，平静下来，专心于
离开，启程，出发
偶然遇见
继续，坚持
逐渐增强，建立，开发
Dear Mr. Smith,
I’m writing to invite you to join us in the English poetry recital competition on July 4. the competition is going to take place on the second floor of the teaching building from 7 p.m. to 9 p.m., during which time participants will recite their favorite English poems. Those who win the prizes will share their experience in learning English.
It would be a great pleasure if you could come and be one of the judges. I’m sure we will have a wonderful time together.
Looking forward to your reply.
Yours sincerely,
Li Hua
But Mom refused to give up. “I’m sure she is still inside,” she said as she kicked the door with great force and shouted in a loud voice, “Wake up, Makcik!” By then, both of us were coughing badly. I was trying hard to pull Mom away when the door opened. Mom was right- Makcik stood there, totally confused. There was no time to explain. Mom immediately led Makcik downstairs and outside to a safe spot where people had gathered to witness the fire. Realizing the seriousness of the situation, Makcik held my mother’s hands tightly, with tears rolling down her cheeks.
A newspaper reporter came forward and interviewed Mom. Mom said that she was familiar with Makcik’s daily routine and was certain she was still sleeping then. When asked if she was scared, Mom replied,” My neighbor was in danger, so the thought of fear never crossed my mind.” The reporter praised Mom for her brave and selfless act. Mom set a good example to me. She taught me the importance of helping others out of trouble. My mom was great.