人教版英语必修4课文讲解Unit2课件.ppt

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1、英语必修4 Unit 2词汇拓展,sunburnt adj.sun+burnt output n.out puthunger n.hungry adj.disturb vt.令人烦恼 disturbing adj.令人烦恼的 disturbed adj.烦恼的,英语必修4 Unit 2词汇拓展,surprise vt.surprising adj.surprised adj.move vt.moving adj.moved adj.,英语必修4 Unit 2词汇拓展,5.expand v.expansion n.circulate v.circulation n.freedom n.free

2、adj.equip v.equipment n.设备 be equipped with 有,英语必修4 Unit 2词汇拓展,person n.personal adj.10.confuse v.confusion n.11.chemical adj.chemistry n.12.produce v.production n.producer n.生产者；制片人,英语必修4 Unit 2词汇拓展,statistic n.数据statistics pl.bacteria n.细菌bacterium pl.,英语必修4 Unit 2 阅读理解,Comprehending P11 Use the i

3、nformation in the passage to complete the following notes about Yuan Longping.,英语必修4 Unit 2阅读理解,Name_Nationality _Age _Occupation _Education _Dream _Achievement _Hobbies _,英语必修4 Unit 2阅读理解,Key:Name:Yuan LongpingNationality:ChineseAge:77(as of 2007)Occupation:ScientistEducation:Graduated from Southwe

4、st Agricultural College,in 1953Dream:to export his hybrid rice so that it can be grown 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,英语必修4 Unit 2课文 讲解,Although he is one of Chin

5、as most famous scientists,Yuan Longping considers himself a farmer,for he works the land to do his research.尽管是中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。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 pas

6、t five decades.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，就跟其他千百万中国农民一样，过去50年来，他一直在努力帮助他们。,英语必修4 Unit 2课文 讲解,语言要点：1.although 虽然;接让步从句（but）2.for 因为;原因从句3.consider v.认为4.work the land 在田里耕作5.like prep.像6.millions of 千百万7.the past five decades 过去五十年8.for whom he has struggled非限定性定语从句,英语必修4 Unit 2课文 讲解,Dr Yuan Lo

7、ngping grows what is called super hybrid rice.袁博士种植的是被称为“超级杂交水稻的”的稻种。In 1974,he became the first agricultural pioneer in the world to grow rice(that has a high output.)1974年，他成为世界上第一位种植高产水稻的农业先锋。,英语必修4 Unit 2课文 讲解,语言要点：9.the rice 先行词(that has a high output.-定语从句),英语必修4 Unit 2课文 讲解,This special strai

8、n of rice makes it possible to produce one-third more of the crop in the same fields.这种特殊的稻种使得同样的田地多收获三分之一的产量。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60%以上出自这种杂交稻种。Born in a poor farmers family in 1930,Dr Yuan graduated from Southwest Agricultu

9、ral College in 1953.袁博士1930年出生，1953年毕业于西南农学院。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就成为他一生的目标。,英语必修4 Unit 2课文 讲解,语言要点：10.it：to produce one-third more of the crop11.the rice(produced in China each year-过去分词词组-定语-修饰rice)12.(finding ways to grow more rice ing分词词组

10、-主语-)has been his life goal.,英语必修4 Unit 2课文 讲解,As a young man,he saw the great need for increasing the rice output.年轻时，他就看到了稻田增产的巨大需求。At that time,hunger was a disturbing problem in many parts of the countryside.当时，饥荒是许多农村地区面临的严重问题。Dr Yuan searched for a way to increase rice harvests without expandi

11、ng the area of the fields.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。In 1950,Chinese farmers could produce only fifty million tons of rice.1950年，中国农民只能生产五千万吨稻谷，,英语必修4 Unit 2课文 讲解,语言要点：13.he saw the great need for increasing the rice output.for后面接ing 分词词组-介词宾语14.Dr Yuan searched for a way（to increase rice harvests-

12、不定式词组-定语）without（接ing 分词词组-介词宾语expanding the area of the fields.）15.million 百万 fifty million 五千万 hundred million 亿,英语必修4 Unit 2课文 讲解,In a recent harvest,however,nearly two hundred million tons of rice was produced.而近来却生产了将近两亿吨稻谷。These increased harvests mean that 22%of the worlds people are fed from

13、 just 7%of the farmland in China.这一粮食产量的增加意味着中国仅仅7%的耕地养活了世界22%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、越南和很多其他欠发达国家传播提高水稻产量的知识。,英语必修4 Unit 2课文 讲解,Thanks to his research,the UN has more tools in the

14、battle to rid the world of hunger.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。Using his hybrid rice,farmers are producing harvests twice as large as before.用他的杂交水稻种子，农民种出的粮食比以前多了一倍。Dr Yuan is quite satisfied with his life.袁博士很满意他的生活。However,he doesnt care about being famous.He feels it gives him less freedom to d

15、o his research.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。,英语必修4 Unit 2课文 讲解,语言要点：16.thanks to 由于多亏17.the battle(to rid the world of hunger-不定式定语).18.ridof使摆脱；消除19.Using his hybrid rice,现在分词词组-状语20.as large as before.比以前多了一倍21.be satisfied with 对满意22.care about 关心；在意,英语必修4 Unit 2课文 讲解,Indeed,he believes that a p

16、erson with too much money has more rather than fewer troubles.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。He therefore gives millions of yuan to equip others for their research in agriculture.于是，他拿出好几百万元帮助其他人进行农业科学研究。,英语必修4 Unit 2课文 讲解,语言要点：22.would rather do sth.宁愿23.enjoy doing sth.24.spending money on himsel

17、f or leading a comfortable life also-ing分词词组主语 25.lead a comfortable life 过着舒适的生活26.means little 没有什么意义,英语必修4 Unit 2课文 讲解,Just dreaming for things,however,costs nothing.梦想是不花本钱的。Long 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 g

18、rain of rice was as huge as a peanut.很久以前，袁博士曾在梦里看到水稻长得像高粱一样高，稻穗跟玉米穗一样大，而每粒稻谷像花生米一样大。,英语必修4 Unit 2课文 讲解,Dr Yuan awoke from his dream with the hope of producing a kind of rice that could feed more people.袁博士从梦中醒来，希望能种植一种能养活更多人的水稻。Now,many years later,Dr Yuan has another dream:to export his rice so th

19、at it can be grown around the globe.在很多年后的今天，袁博士还有另外一个梦想，那就是他的稻谷可以出口并长遍全球。One dream is not always enough,especially for a person who loves and cares for his people.一个梦想总是不够的，尤其对一个热爱和关心人民的人来说更是如此。,英语必修4 Unit 2课文 讲解,语言要点：27.(Just dreaming for things,however,-ing分词词组-主语)costs nothing.28.asas 像一样 as tall as;as big as;as huge as;29.dream with the hope of(producing a kind of rice-ing分词词组-介词宾语)（that could feed more people.定语从句修饰rice）,