高中英语必修四第四单元IntroducitonandReading.ppt

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1、Qian XuesenDo you know who are they?Isaac NewtonAlbert EinsteinMarie CurieArchimedes(阿基米德阿基米德)Thomas Edison1.the study of animals 2.the study of plants 3.the study of all living things zoologybotanybiologyMatch the words and definitions.biochemistry biology botany chemistry genetics physics zoology4

2、.the study of physical objects and natural forces 5.the study of chemical processes in living things 6.the study of the structure of substances and how they react with each other 7.the study of inherited characteristics in living thingschemistryphysicsbiochemistrygenetics Work in pairs.Write some fa

3、cts about a famous scientist.Example:Newtown was born inEngland in the 17th century.Hediscovered the laws of gravity.Today,we are going to learn something about one of the most important scientists-Yuan Longping.What do you know about him?Yuan Longpingleading figure educate nickname agriculture bree

4、ding species yieldadj.主要的主要的n.人物人物vt.教育教育n.绰号绰号n.农业农业n.培育培育n.（动物或植物的）种（动物或植物的）种n.产量产量originalpublish sterile breakthroughsupport production convertexport adj.原来的；最初的原来的；最初的vt.出版出版 adj.不结果实的不结果实的n.突破突破vt.支持支持n.产量产量vt.改变；转换改变；转换vt.出口出口 hybrid agriculturalreplacequantityqualityn.杂交种杂交种adj.农业的农业的vt.取代；以

5、取代；以代替代替 n.数量数量n.质量质量Expressions bring upas a result of cash crop培育；养育培育；养育由于由于的结果的结果经济作物经济作物To get general ideasWhats the main idea of the passage?A.Yuan Longping is a leading figure in the rice-growing world B.As a boy,Yuan Longping was called”the student who asked questions”.C.Yuan Longping disco

6、vered a new type of rice.D.Yuan Longpings discoveries has brought in great profit.To get detailed information(1)China produces more rice than any other country.(2)Yuan Longping asked a lot of questions at school.(3)He developed a new kind of fast-growing rice.TTTReading comprehension 1(4)The governm

7、ent helped him in his research.(5)The new rice replaced vegetables in 50 thousand square kilometres.(6)The new rice is now grown in other countries,such as Pakistan.TFT1.Which country is the worlds largest rice producer?China.2.Where is rice grown in the world?Many Asian Countries and some European

8、countries.3.Who is the leading figure in the rice-growing world?Yuan Longping.Reading comprehension 21.Where was Yuan Longping born and brought up?China.2.What nickname was he given?The student who asks questions.1.What did Yuan Longping study in college?Agriculture.2.According to him,what was the k

9、ey to feeding people?To have more rice and produce it more quickly.3.What is the only way to do it?To cross different species of rice plant.From an early age he _ plants.He studied agriculture in college and as a young teacher he began experiments _.He thought that _ feeding people was to have more

10、rice and to _ it more quickly.He thought there was only one way to do thisby _ different species of rice plant,and then he could produce a new plant which could give a higher _ than either of the _ plants.in crop breedingwas interested inthe key to producecrossingoriginalyield1.What special type of

11、rice plant did he search for?A male and sterile rice plant.2.What was the breakthrough in 1970?A naturally sterile male rice plant was discovered.3.Who supported his research?Researchers from all over China and the government.1.What did his discoveries result in?Chinese rice production rose by 47.5%

12、.2.Where was his rice exported to?Pakistan,the Philippines and so on.3.Why were the rice fields converted to growing vegetables and other cash crops?It is no need to plant so many rice because of the high production.1.What is the most important crop in Pakistan?Wheat.2.Whats the feature of the new h

13、ybrid rice?Its yield is much greater than that of other types of rice grown in Pakistan.To solve difficult points1.rice-growing 复合形容词，种植水稻的复合形容词，种植水稻的n.+现在分词现在分词 (与所描述的人或事物之与所描述的人或事物之间是逻辑上的主动关系间是逻辑上的主动关系)an English-speaking country a gold-mining group a paper-making factory peace-loving peoples2.As

14、a boy he was educated in schools and was given the nickname,”the student who asks question”.被动语态：被动语态：助动词助动词be+及物动词的过去分词及物动词的过去分词 Thousands of people speak English.English is spoken by thousands of people.被动语态详解见被动语态详解见M4P2 Grammar3.He thought there was only one way to do this-by crossing different

15、species of rice plant.by+v-ing形式形式 通过通过(表示某种方式表示某种方式)你可以通过尽可能多的练习来提高口语。你可以通过尽可能多的练习来提高口语。You can improve your spoken English by practising as often as possible.他通过努力通过了考试。他通过努力通过了考试。He passed the exam _ _ _.by working hard4.As a result of Yuan Longpings discoveries Chinese rice production rose by 47

16、.5 percent in the 1990s.由于袁隆平的发现，中国的水稻产量在由于袁隆平的发现，中国的水稻产量在20世纪世纪90年代增长了年代增长了47.5%。as a result of 由于由于 由于交通堵塞，他上学迟到了。由于交通堵塞，他上学迟到了。He was late as a result of the traffic jam.as a result of&as a result The plate moved toward the west.As a result,earthquake broke out.As a result of the movement of the

17、plate,earthquake broke out.5.earn a living谋生，维持生活：谋生，维持生活：Tom could hardly earn a living.汤姆难于维持生计。汤姆难于维持生计。He earned a living by teaching.他以教书为生。他以教书为生。earn a living也可作也可作earn ones living,类似短语还有类似短语还有gain a living/get a living/make a living/earn ones keep/earn ones bread。6.kind,sort,species,type“种类种

18、类”区别区别kind指同种类的东西，用来指具有共同特征指同种类的东西，用来指具有共同特征 而放在一起的一群人或物或说话人对某而放在一起的一群人或物或说话人对某 事物在某方面有相像之处的一种看法；事物在某方面有相像之处的一种看法；sort指指大体相似大体相似的东西，有时用于的东西，有时用于贬义贬义判断；判断；species指相同种类的指相同种类的生物生物；type表示某一类事物分出的不同类型，表示表示某一类事物分出的不同类型，表示 “型、类型、型、类型、样式样式”。What _ of bicycle do you want?This is the book of a different _.He

19、s the _ of person I really dislike.typekindsort1.We call the food that we eat regularly s_ food.2.A s_ plant is a plant which doesnt produce seeds.3.The Chinese government has taken active measure to encourage peasants to give a high y_.4.Most smokers are perfectly a_ of the dangers of smoking.5.We

20、must e_ more food ourselves and import less.tapleterileieldwarexport6.Our country has made a great(突破突破)_ in exploring the Antarctica.7.The whole office _(换了换了)a new computer system last year.8.He is _(受害者受害者)of the bad circumstances.9.Hawkings work was in the area of _(宇宙学宇宙学).10.The escape of _(辐射

21、辐射)from the nuclear power plant caused great damage to this area.breakthroughconvertedvictimcosmologyradiation1.-How do you deal with the disagreement between the company and the customers?-_ is to meet the demand made by the customers.2.The number of the employees has grown from 1,000 to 1,200.This

22、 meant _ 20 percent.The key to solving the problemit has risen by1.There is a new problem involved in the popularity of private cars that road conditions need to be improved.关于私家车普及所产生的新问题是，公关于私家车普及所产生的新问题是，公 路状况需要改善。路状况需要改善。2.电子邮件在社会交往中所起的作用越电子邮件在社会交往中所起的作用越来越大。来越大。E-mails are playing a more and mo

23、re important part in social communication.3.一般说来，大城市的街道清洁工是按小一般说来，大城市的街道清洁工是按小时计酬。时计酬。Generally speaking,street cleaners in big cities usually get paid by the hour.4.检查你的作文确保它易于阅读，结构完检查你的作文确保它易于阅读，结构完整，文字简练。整，文字简练。Check your composition to make sure that it is easy to read,well-organizedand brief.5.

24、他获得作家的名气靠得是作品的数他获得作家的名气靠得是作品的数量而非质量。量而非质量。His reputation as a writer depends more on quantity than quality.6.他总是心不在焉的。难怪老是犯错他总是心不在焉的。难怪老是犯错误。误。He is always absent-minded.No wonder he keeps making mistakes.Type of writingA narration Idea of 1st para.In the rice-growing world,theChinese scientist,Yuan

25、 Longping,is a leading figure.Idea of 2nd para.As a boy Yuan Longping was given the nickname,“the student who asks questions”.Idea of 3rd para.From an early age he was interested in plants.Text analysisIdea of4th para.First Yuan Longping experimented with different types of rice.Idea of 5th para.As

26、a result of Yuan Longpings discoveries Chinese rice production rose by 47.5 percentin the 1990s.Idea of 6th para.Pakistan new hybrid rice has been developed by the Yuan Longping High-tech Agricultural Company of China.Yuan Longping is a leading figure in the _ world.As a boy,he was called“the studen

27、t who asks question”.As a young teacher,he began _ in crop _.He thought that the _ to feeding people was to have more rice and to produce it more quickly.In 1970 a naturally male rice plant was discovered.This was the _.rice-growingexperimentsbreedingkeybreakthroughAs a result of this,Chinese rice p

28、roduction rose _ 47.5percent.The _ of the new rice is much greater than that of other types of rice grown in Pakistan.byyieldWrite a description about Yuan Longping(in 100 words).Yuan Longping isHe was born and brought upWhen he was a boy,he was given the nicknameLater he studied then he began.He discoveredAs a result of his discovery