人教版-英语-必修4课文讲解Unit2-PPT课件

1、英语必修英语必修4 Unit 2词汇拓展词汇拓展 1. sunburnt adj. sun + burnt 2. output n. out put3. hunger n. hungry adj.4. disturb vt. 令人烦恼令人烦恼 disturbing adj. 令人烦恼的令人烦恼的 disturbed adj. 烦恼的烦恼的12021/7/24英语必修英语必修4 Unit 2词汇拓展词汇拓展 surprise vt. surprising adj. surprised adj. move vt. moving adj. moved adj.22021/7/24英语必修英语必修4

2、Unit 2词汇拓展词汇拓展 5. expand v. expansion n.6. circulate v. circulation n.7. freedom n. free adj.8. equip v. equipment n. 设备设备 be equipped with 有有32021/7/24英语必修英语必修4 Unit 2词汇拓展词汇拓展 9. person n. personal adj.10. confuse v. confusion n.11. chemical adj. chemistry n.12. produce v. production n. producer n.

3、 生产者；制片人生产者；制片人 42021/7/24英语必修英语必修4 Unit 2词汇拓展词汇拓展 statistic n. 数据数据 statistics pl. bacteria n. 细菌细菌 bacterium pl.52021/7/24英语必修英语必修4 Unit 2 阅读理解阅读理解Comprehending P11 1.Use the information in the passage to complete the following notes about Yuan Longping.62021/7/24英语必修英语必修4 Unit 2阅读理解阅读理解Name_Natio

4、nality _Age _Occupation _Education _Dream _Achievement _Hobbies _72021/7/24英语必修英语必修4 Unit 2阅读理解阅读理解Key:Name: Yuan LongpingNationality: ChineseAge: 77 (as of 2007)Occupation: ScientistEducation: Graduated from Southwest Agricultural College, in 1953Dream: to export his hybrid rice so that it can be g

5、rown around the globeAchievement : in 1973, developed hybrid rice which produces 20% more than normal riceHobbies: listening to violin music, playing mah-jong, swimming and reading 82021/7/24英语必修英语必修4 Unit 2课文课文 讲解讲解Although he is one of Chinas most famous scientists, Yuan Longping considers himself

6、 a farmer, for he works the land to do his research. 尽管是中尽管是中国最著名的科学家之一，袁隆平仍然认为自己是国最著名的科学家之一，袁隆平仍然认为自己是个农民，因为他在田里耕作，进行科学研究。个农民，因为他在田里耕作，进行科学研究。Indeed, his sunburnt face and arms and his slim, strong body are just like those of millions of Chinese farmers, for whom he has struggled for the past five

7、decades. 的确，他被太阳晒得黝黑的脸庞和和手的确，他被太阳晒得黝黑的脸庞和和手臂，以及他那瘦削而又结实的身躯，就跟其他千臂，以及他那瘦削而又结实的身躯，就跟其他千百万中国农民一样，过去百万中国农民一样，过去50年来，他一直在努力年来，他一直在努力帮助他们。帮助他们。92021/7/24英语必修英语必修4 Unit 2课文课文 讲解讲解语言要点：语言要点： 1.although 虽然虽然; 接让步从句接让步从句（but）2. for 因为因为 ; 原因从句原因从句3.consider v. 认为认为4.work the land 在田里耕作在田里耕作5.like prep. 像像6.mi

8、llions of 千百万千百万7.the past five decades 过去五十年过去五十年8.for whom he has struggled非限定性定语从句非限定性定语从句102021/7/24英语必修英语必修4 Unit 2课文课文 讲解讲解Dr Yuan Longping grows what is called super hybrid rice. 袁博士种植的是被袁博士种植的是被称为称为“超级杂交水稻的超级杂交水稻的”的稻种。的稻种。 In 1974, he became the first agricultural pioneer in the world to gro

9、w rice( that has a high output. )1974年，年，他成为世界上第一位种植高产水稻的他成为世界上第一位种植高产水稻的农业先锋农业先锋。112021/7/24英语必修英语必修4 Unit 2课文课文 讲解讲解语言要点：语言要点：9. the rice 先行词先行词( that has a high output.-定语从句定语从句 )122021/7/24英语必修英语必修4 Unit 2课文课文 讲解讲解 This special strain of rice makes it possible to produce one-third more of the cr

10、op in the same fields. 这种特殊的稻种使得同样的田地多收获三这种特殊的稻种使得同样的田地多收获三分之一的产量。分之一的产量。Now more than 60% of the rice produced in China each year is from this hybrid strain.如今中国每年出产的稻米有如今中国每年出产的稻米有60%以上出自这以上出自这种杂交稻种。种杂交稻种。 Born in a poor farmers family in 1930, Dr Yuan graduated from Southwest Agricultural College

11、 in 1953. 袁博士袁博士1930年出生，年出生，1953年毕业于西南农学年毕业于西南农学院。院。Since then, finding ways to grow more rice has been his life goal. 从那时起，找到水稻高产的方法从那时起，找到水稻高产的方法就成为他一生的目标。就成为他一生的目标。132021/7/24英语必修英语必修4 Unit 2课文课文 讲解讲解 语言要点：语言要点： 10. it ：to produce one-third more of the crop 11. the rice (produced in China each ye

12、ar-过去分词词组过去分词词组-定语定语-修饰修饰rice ) 12. (finding ways to grow more rice ing分词词组分词词组-主语主语-)has been his life goal. 142021/7/24英语必修英语必修4 Unit 2课文课文 讲解讲解 As a young man, he saw the great need for increasing the rice output. 年轻时，他就看到了年轻时，他就看到了稻田增产的巨大需求。稻田增产的巨大需求。 At that time, hunger was a disturbing proble

13、m in many parts of the countryside. 当时，饥荒是许多农村地区面临当时，饥荒是许多农村地区面临的严重问题。的严重问题。Dr Yuan searched for a way to increase rice harvests without expanding the area of the fields. 袁博士要在不增加土地面积袁博士要在不增加土地面积的基础上寻求达到增收稻谷的途径。的基础上寻求达到增收稻谷的途径。 In 1950, Chinese farmers could produce only fifty million tons of rice.

14、1950年，中国农民只能生产五千万年，中国农民只能生产五千万吨稻谷吨稻谷，152021/7/24英语必修英语必修4 Unit 2课文课文 讲解讲解 语言要点：语言要点：13. he saw the great need for increasing the rice output. for后面接后面接ing 分词词组分词词组-介词宾语介词宾语 14.Dr Yuan searched for a way （to increase rice harvests-不定式词组不定式词组-定语）定语） without （接（接ing 分词词组分词词组-介词宾语介词宾语expanding the area

15、of the fields. ） 15. million 百万百万 fifty million 五千万五千万 hundred million 亿亿162021/7/24英语必修英语必修4 Unit 2课文课文 讲解讲解 In a recent harvest, however, nearly two hundred million tons of rice was produced. 而近来却生产了而近来却生产了将近两亿吨稻谷。将近两亿吨稻谷。These increased harvests mean that 22% of the worlds people are fed from jus

16、t 7% of the farmland in China. 这一粮食产量的增加意味这一粮食产量的增加意味着中国仅仅着中国仅仅7%的耕地养活了世界的耕地养活了世界22%的人口。的人口。 Dr Yuan is now circulating his knowledge in India, Vietnam and many other less developed countries to increase their rice harvests. 袁博士现在在印度、袁博士现在在印度、越南和很多其他欠发达国家传播提高水稻产量的越南和很多其他欠发达国家传播提高水稻产量的知识。知识。172021/7/

17、24英语必修英语必修4 Unit 2课文课文 讲解讲解 Thanks to his research, the UN has more tools in the battle to rid the world of hunger. 多亏了他的研究，多亏了他的研究，联合国在消除世界饥饿的战斗中有了更多的办法。联合国在消除世界饥饿的战斗中有了更多的办法。Using his hybrid rice, farmers are producing harvests twice as large as before. 用他的杂交水稻用他的杂交水稻种子，农民种出的粮食比以前多了一倍。种子，农民种出的粮食比以

18、前多了一倍。 Dr Yuan is quite satisfied with his life. 袁博士很袁博士很满意他的生活。满意他的生活。However, he doesnt care about being famous. He feels it gives him less freedom to do his research. 但是，他对成名并不在意，并且但是，他对成名并不在意，并且觉得出名后搞科研就不那么自由了。觉得出名后搞科研就不那么自由了。182021/7/24英语必修英语必修4 Unit 2课文课文 讲解讲解 语言要点：语言要点： 16.thanks to 由于由于多亏多亏

19、17.the battle (to rid the world of hunger-不不定式定式定语定语). 18. ridof使使摆脱；消除摆脱；消除 19. Using his hybrid rice, 现在分词词组现在分词词组-状语状语 20.as large as before.比以前多了一倍比以前多了一倍 21. be satisfied with 对对满意满意 22. care about 关心；在意关心；在意192021/7/24英语必修英语必修4 Unit 2课文课文 讲解讲解Indeed, he believes that a person with too much mon

20、ey has more rather than fewer troubles. 事实上，他认为一个人有了太多事实上，他认为一个人有了太多钱，他的麻烦事只会更多，而不是更少。钱，他的麻烦事只会更多，而不是更少。 He therefore gives millions of yuan to equip others for their research in agriculture. 于是，于是，他拿出好几百万元帮助其他人进行农业科他拿出好几百万元帮助其他人进行农业科学研究。学研究。202021/7/24英语必修英语必修4 Unit 2课文课文 讲解讲解 语言要点：语言要点： 22. would

21、rather do sth. 宁愿宁愿 23. enjoy doing sth. 24. spending money on himself or leading a comfortable life also-ing分词词组分词词组主语主语 25. lead a comfortable life 过着舒适的生活过着舒适的生活 26.means little 没有什么意义没有什么意义212021/7/24英语必修英语必修4 Unit 2课文课文 讲解讲解 Just dreaming for things, however, costs nothing. 梦想是不花本钱的。梦想是不花本钱的。 L

22、ong ago Dr yuan had a dream about rice plants as tall as sorghum. Each ear of rice was as big as an ear of corn and each grain of rice was as huge as a peanut. 很久以前，袁博士曾在梦里看到很久以前，袁博士曾在梦里看到水稻长得像高粱一样高，稻穗跟玉米穗一水稻长得像高粱一样高，稻穗跟玉米穗一样大，而每粒稻谷像花生米一样大。样大，而每粒稻谷像花生米一样大。222021/7/24英语必修英语必修4 Unit 2课文课文 讲解讲解 Dr Yuan awoke from his dream with the hope of producing a