人教版必修四Unit2(Reading：APioneerForAllPeople)(共24张)课件

1、By Meilei Li第1页，共24页。Question 1How much of the earth is covered by land?A. 1/2B. 1/3C. 1/4D. 1/5C. 1/4第2页，共24页。Question 2 Of the land on the earth, how much can be used for farming? A. 1/2B. 1/3C. 1/4D. 1/5A. 1/2第3页，共24页。Question 3 Of the arable(可耕种的) land, how much is actually used for farming?A. 1

2、/2B. 1/3C. 1/4D. 1/5C. 1/4第4页，共24页。Only _ (1/4*1/2*1/4) of the total land on the earth is now used for farming.1/32第5页，共24页。 Nowadays, the farmland is decreasing rapidly. Why?the overused land for building houses, squares, etc. serious environmental problems over farming the rapidly increasing popul

3、ation the rapidly increasing population第6页，共24页。ProblemHow can we feed the world with limited farmland ?第7页，共24页。 For China, it is a even more serious problem. Why?Because China only has 7% of the farmland of the earth, but has 22% of the worlds population. 第8页，共24页。Solution第9页，共24页。super hybrid ric

4、eproduce 20% more of the crop in the same fields with high output第10页，共24页。A Pioneer for All PeopleA Pioneer in agriculturea pioneer: a person who is the first to study and develop a particular area of knowledge, culture, etc. that other people then continue to develop A PioneerWhat is the particula

5、r area Yuan Longping studies?第11页，共24页。Para 1Para 2Para 3Para 4Life and hobbyDreamsBiography & achievements Opinion about himselfA pioneer for all people Match the headings with each paragraph第12页，共24页。Why is Dr. Yuan more of a farmer? For one thing, he _ _ _ to do his research though he is a scient

6、ist. For another, his _ face and arms and his _, _body are just like those of millions of Chinese farmers. works the landsunburntslimstrongPara 1: Opinion about himself sunburnt face and arms and slim, strong body第13页，共24页。What is Yuan Longpings way to grow more rice? His way is to increase rice har

7、vests without expanding the area of the fields. 2. How does it work? It works quite well. By using his hybrid rice, farmers are producing harvests twice as large as before. Thanks to his hybrid rice, farmers _ its rice production in the same fields. Para 2: Biography double3. What is he now busy doi

8、ng ? He is now busy _ _ _ in India, Vietnam and many other less developed countries to increase their rice harvests. circulating his knowledge第14页，共24页。Para 3：Life and hobby What is his opinion about being famous and rich? He _ _ _ being famous and rich. He would much rather _ _ _ his hobbies and _

9、others _ millions of yuan _ their research in agriculture. thought little of keep time for equipwithfor第15页，共24页。1. What was and is Yuan Longpings dream ? Since then (=his graduation) finding ways to grow more rice has been his life goal. Long ago _ _ Now, _ _he had a dream about rice plants astall

10、as sorghum , each ear of rice as big as an ear ofcorn and each grain of rice as huge as a peanut.many years later, he has another dreamabout exporting his rice so that it can be grownaround the globe. Para 4: Dreams 第16页，共24页。To feed the world!_ as tall as sorghum_as huge as a peanut_as big as an ea

11、r of cornrice plantseach ear of riceeach grain of riceTo rid the world of hunger!第17页，共24页。selflessimaginativemusic-loving pioneering lovingenergeticselflessimaginativemusic-loving pioneering lovingenergeticDr. Yuan doesnt _ _ being famous or rich. He would rather lead a _ life. simplecare aboutPers

12、onality第18页，共24页。 Norman Borlaug，被认为是美国最著名的农业学家之一，他使得多达十亿的人们免于饥饿的困扰。他环游世界去传播他的方法，帮助很多欠发达国家的人民提高他们的农作物产量。 在他小的时候，饥饿就是一个令人烦恼的问题。因此，从那时起，找到生产出更多小麦的方法就是他的人生目标。他下定决心要使人们摆脱饥饿。他毫不在意名和利，宁愿把时间留给他的农业研究。多亏了他的努力，现在农民每公顷（per hectare)的收成比以前翻了一番。 Similar writing:第19页，共24页。 Norman Borlaug，被认为是美国最著名的农业学家之一，他使得多达十亿的人

13、们免于饥饿的困扰。他环游世界去传播他的方法，帮助很多欠发达国家的贫困人民提高他们的农作物产量。 在他小的时候，饥饿就是一个令人烦恼的问题。因此，从那时起，找到生产出更多小麦的方法就是他的人生目标。他下定决心要使人们摆脱饥饿。他毫不在意名和利，宁愿把时间留给他的农业研究。多亏了他的努力，现在农民每公顷（per hectare)的收成比以前翻了一番。 第20页，共24页。 Norman Borlaug, considered to be one of the most famous agricultural scientist in America, kept as many as one bil

14、lion people free from hunger. Travelling around the world to circulate his methods, he helped poor people from less developed countries improve the output of their crops. When he was young, hunger was ever a disturbing problem. Therefore, finding ways to grow more wheat has been his life goal since then. He was determined to rid people of hunger. He thought little of being famous and rick and would rather keep time for his agricultural research. Thanks to his efforts, now farmers can produce harvests twice as large as bef