2013外研版必修四Module4《Greatscientists》.pptVIP

1、Section Introduction & Reading and VocabularyWarming Up,预习多维感知,Section ,预习多维感知,Step One：Ask and Discussion 1Which great scientists do you know? _ 2Can you say something about one of them? _,Step Two：Fast Reading 1Do you know about Mr.Yuan Longping？Yes，he is a great scientist，but also an ordinary man

2、.He has made great contributions to human beings.To know more about him，read the text and then find out the topic sentence of each paragraph. Para.1_ 答案：Yuan Longping is a leading figure in the ricegrowing world.,Para.2_ 答案：As a boy，he was called “the student who asks questions” Para.3_ 答案：As a youn

3、g teacher，he began experiments in crop breeding.,Para.4_ 答案：He discovered a special type of rice. Para.5_ 答案：His discoveries increased Chinese rice production. Para.6_ 答案：The yield of the new hybrid rice is much greater than that of other types grown in Pakistan.,2Scan the text and then choose the b

4、est answer according to the text. (1)Which of the following statements about rice is TRUE? AChina is the worlds second largest producer of rice. BRice is grown in every country in the world. CYuan Longping is famous for growing wheat. DYuan Longping has made great contributions in the ricegrowing wo

5、rld.,(2)Yuan Longping_. Ais a leading scientist in industry Bwas born and brought up in China Cwas educated in a famous school for many years Dwas given a nickname because he was very naughty (3)The only way that Yuan Longping thought to produce more rice quickly was_. Ato be interested in plants Bt

6、o study agriculture in college Cto begin experiments in crop breeding Dto cross different species of rice plant,(4)Please choose the RIGHT order of the following events about Yuan Longping. aYuan Longpings rice was exported to other countries. bThe results of his experiments were published in China.

7、 cHe studied agriculture in college. dThe government supported his research group to develop the new system of rice. eHe began experiments in crop breeding. AcebdaBebdac Cbcdae DEcbda 答案：(1)D(2)B(3)D(4)A,Step Three：Careful Reading 1Listen to the tape and answer the following questions. (1)What kind

8、of student was Yuan Longping when he was young? _ _ 答案：He was a student with lots of questions and he was interested in plants.,(2)What way did he think to produce rice more quickly? _ _ 答案：By crossing different species of rice plant，then he could produce a new plant which could give a higher yield

9、than either of the original plants.,(3)What did he discover? _ 答案：He discovered a naturally sterile male rice plant.,(4)How important was the discovery? _ _ 答案：Chinese rice production rose by 47.5% in the 1990s.50,000 square kilometres of rice fields were converted to growing vegetables and other ca

10、sh crops.Yuans rice was exported to other countries.His rices yield is much greater than the yield of other types of rice grown in Pakistan.,2Read the text and fill in the blanks.,答案：(1)figure(2)educated(3)agriculture(4)breeding(5)published(6)sterile(7)rose(8)converted(9)exported(10)greater,Step Fou

11、r：Summary The Chinese scientist，Yuan Longping，is a 1._ figure in the 2._world. He was born and 3._in China.As a boy he was 4._ in many schools.He studied agriculture in college.After graduation from Southwest Agriculture College，he has devoted himself to 5._ education and research ever since.He thought that the key to 6._ people was to have more rice and to produce it more quickly.,After many years hard work，he 7._a new plant by 8._ different species of rice plant，which could give a higher yield than either of the 9._ plants.This 10._ in rice breeding has made great contributions to the w