Unit 5 Reading and Thinking -ppt课件--（2022）新人教版(2019新版)高中英语选择性必修第一册.pptx

1、Unit5 Working the landReading and Thinking1.Who is the man in the photo?What crop is he holding in his hands?2.What do you know about the man?What else do you want to know about him?Yuan Longping.Hybrid rice.He is a famous scientist at home and abroad;He is called father of hybrid rice;He is advance

2、d in years but he still works in the land.1.Before you read,look at the photo and the title of the text.Discuss these questions in groups.认为自己是致力于学科学/学医为了解决这场危机接受教育耕种土地Look up the new words in a dictionary.How does the author describe Yuan Longping with the following expressions?2.Read the text,matc

3、h the m a i n i d e a w i t h e a c h paragraph.Undrline the topic sentence of each paragraph.Paragraph1 A.Yuan conducted research and developed hybrid rice.Paragraph2 B.Yuan is old but still working hard to fulfil his dreams.Paragraph3 C.Yuan considers himself a farmer.Paragraph4 D.Yuan decided to

4、study agriculture.Paragraph5 E.Yuans innovation has helped to feed more people.Paragraph6 F.Yuan cares little for fame or wealth.提高产量一个难题通过不懈努力克服众多技术问题颐养天年远非，远不是不慕名利在内心深处为大量捐赠国内外年事已高充满憧憬A PIONEER FOR ALL PEOPLEYuan Longping,known as the“father of hybrid rice”,is one of Chinas most famous scientists.

5、Yet,he considers himself a farmer because he continually works the land in his research.Indeed,his slim but strong body is just like that of millions of Chinese farmers,to whom he has devoted his life.Paragraph 1:Yuan Longpings career and achievementsParagraph 2:Yuan Longpings youth and educationYua

6、n Longping was born in 1930 in Beijing.His parents wanted him to pursue a career in science or medicine.However,what concerned him most was that farmers often had poor harvests and sometimes even had a serious shortage of food to eat.To tackle this crisis,he chose to study agriculture and received a

7、n education at Southwest Agricultural College in Chongqing.认为自己是致力于学科学/学医为了解决这场危机接受教育耕种土地2.Read the text,match the m a i n i d e a w i t h e a c h paragraph.Underline the topic sentence of each paragraph.After graduating in 1953,he worked as a researcher.Yuan Longping realised that larger fields wer

8、e not the solution.Instead,farmers needed to boost yields in the fields they had.How this could be done was a challenging question at the time.Yuan was convinced that the answer could be found in the creation of hybrid rice.A hybrid is a cross between two or more varieties of a species.One character

9、istic of hybrids is that they usually attain a higher yield than conventional crops.However,whether it was possible to develop a hybrid of self-pollinating plants such as rice was a matter of great debate.The common assumption then was that it could not be done.Through intense effort,Yuan overcame e

10、normous technical difficulties to develop the first hybrid rice that could be used for farming in 1974.This hybrid enabled farmers to expand their output greatly.Paragraph 3:The Birth of Hybrid Rice提高产量一个难题通过不懈努力克服众多技术问题Today,it is estimated that about 60 percent of domestic rice consumption in Chin

11、a is comprised of crops generated from Yuans hybrid strains,and his strains have allowed Chinas farmers to produce around 200 million tons of rice per year.Yuans innovation has helped feed not just China,but many other countries that depend on rice as well,such as India and Vietnam.Because of his in

12、valuable contributions,Yuan Longping has received numerous awards both in China and abroad.Paragraph 4:The Importance of Hybrid RiceWhat impresses people most about Yuan Longping is his ongoing ability to fulfill his dreams.Long ago,he envisioned rice plants as tall as sorghum,with each ear of rice

13、as big as a broom,and each grain of rice as huge as a peanut.He succeeded in producing a kind of rice that could feed more people at home and abroad.His latest vision for“seawater rice”has also become a reality,and potentially opened up nearly one million square kilometres of salty land in China for

14、 rice production.Despite his advanced years,Yuan Longping is still young at heart and full of vision,and everyone is waiting to see what he will dream up next.Given that Yuans hybrids have made him quite wealthy,one might think he would retire to a life of leisure.However,this is far from the case.D

15、eep down,Yuan is still very much a farmer at heart.As a man of the soil,he cares little for celebrity or money.Instead,he makes large donations to support agricultural research.颐养天年远非，远不是不慕名利在内心深处为大量捐赠国内外年事已高充满憧憬Paragraph 6:The Importance of Hybrid RiceParagraph 5:The Importance of Hybrid RiceParagr

16、aph1 A.Yuan conducted research and developed hybrid rice.Paragraph2 B.Yuan is old but still working hard to fulfil his dreams.Paragraph3 C.Yuan considers himself a farmer.Paragraph4 D.Yuan decided to study agriculture.Paragraph5 E.Yuans innovation has helped to feed more people.Paragraph6 F.Yuan car

17、es little for fame or wealth.2.Read the text,match the main idea with each paragraph.3.Read the text again and answer the questions.Why does Yuan Longping consider himself a farmer?Why did Yuan decide to study agriculture?What is the main advantage of hybrid crops?How has Yuans work helped China and

18、 other countries?What is Yuans latest vision?思考：问题背后传达了哪些道理和人物的优秀品质？思考：问题背后传达了哪些道理和人物的优秀品质？While looking for the answers,what else have you found?Why does Yuan Longping consider himself a farmer?Why did Yuan decide to study agriculture?What is the main advantage of hybrid crops?How has Yuans work he

19、lped China and other countries?What is Yuans latest vision?original aspiration初心Why did Yuan decide to study agriculture?Why does Yuan Longping consider himself a farmer?What is Yuans latest vision?老骥伏枥，永不停息的人生观What responsibility does he take?强烈的责任感timelineWhat is the main advantage of hybrid crops

20、?理想 付出付出 成就How has Yuans work helped China and other countries?With great power comes great responsibility.能力和责任的相互转化不忘初心的表现View/deeds of others View/deeds of Yuan LongpingSelf-identityLife PersueFacingDifficultiesLifestyle in advanced yearsWhat writing technique does the writer employ to exhibit Yu

21、an Longpings qualities?作者在文中多次使用了对照（contrast）手法，以突出袁隆平的高尚品质。What can you learn from Yuan Longpings words“My lifelong pursuit is to keep all the people away from hunger”?Discuss your new findings on agriculture with partners.View/deeds of others View/deeds of Yuan LongpingFather of hybrid rice;Great

22、agricultural scientistFarmer working the landHis parents wish him to study science or medicine.To tackle this crisis(poor harvest and famine),he chose to study agriculture.Developing hybrid rice was on great debate based on poor assumptions.He overcame difficulties to develop the first hybrid rice t

23、hat could be used for farming.Retire of work and enjoy the possession he earned.Continue to work the land as a farmer and take on more challenges.Discuss and ThinkbeforenowrainfallriverdripirrigationOther than hybrid rice,what other advanced technologies in agriculture do you know?vast landbeforenow

24、hydroponics farmingDiscuss and ThinkOther than hybrid rice,what other advanced technologies in agriculture do you know?农村规划与基础beforenowagricultural roboticsself-driving remote controlsplough harvestDiscuss and ThinkOther than hybrid rice,what other advanced technologies in agriculture do you know?【分

25、析】本句是一个复合句。句中what concerned him most为what引导的主语从句，that farmers.为that引导的表语从句，其中不定式短语to eat作名词food的后置定语。what是连接代词，引导的从句可以作主语、宾语或表语；what本身在从句中可作主语、宾语或表语。例1What we need is money.我们需要的是钱。例2What I want to know is this.我想知道的就是这一点。翻译 她生气的原因还不清楚。What made her angry was not clear.【提示】that引导名词性从句只起连接作用，在从句中不作任何

26、成分，无意义，在宾语从句中通常省略，但在主语从句、表语从句和同位语从句中均不能省略；what除引导从句外，还在从句中作成分，意为“所的(东西)”，在含义上等于“名词that”。重点句型1.However,what concerned him most was that farmers often had poor harvests and sometimes even had a serious shortage of food to eat.然而，最让他担心的是，农民经常粮食歉收，有时甚至严重缺乏食物。what the manager had said【练习】用学到的知识完成句子 他想知道经

27、理在会议上说了些什么。He wanted to know at the meeting.把你买的东西给我看看。Show me _.你最好还是努力工作。Its the best _.that you should work hardwhat you have bought【分析】句中it is estimated that“据估算”为“It is/was过去分词that.”结构。it作形式主语，真正的主语是that引导的主语从句。2.Today,it is estimated that about 60 percent of domestic rice consumption in China

28、is comprised of crops generated from Yuans hybrid strains.据估算，现在中国国内消费的稻米有大约60%来自袁隆平的杂交水稻品种形成的作物。【知识拓展】(1)常用于此结构的动词有say,report,think,hope,suggest,believe,require,announce等。(2)此句型可改写为“sb/sthbe said/believed/thoughtto do”或“people say/think.(that)”结构。例1It is estimated that every year 50 unaccompanied c

29、hildren arrive in Britain.据估计，每年有50名儿童独自来到英国。例2It is estimated that the vase is 2000 years old.据估计这个花瓶有两千年的历史了。翻译 预计这次会议要持续4天。It is estimated that the meeting will last four days.重点句型【练习】用学到的知识完成句子 据报道，三分之一的市民打算购买私家车。_ one third of citizens plan to buy a private car.人们希望这种可怕的疾病能得到控制。_ the terrible d

30、isease will soon be controlled.据说他已经通过了驾照考试。_ he has passed the driving test.He _ the driving test.It is reported thatIt is hoped thatIt is said thatis said to have passed重点句型【知识拓展】【知识拓展】given用法用法(1)用作形容词，意为“特定的”“一定的”“规定的”等，通常用作定语。(2)作为give 的过去分词，有介词的用法，后接名词或代词，意为“考虑到”或“鉴于”。(3)引出过去分词短语作状语，意为“如果有”，“假

31、定”等，此时要注意其逻辑主语与句子主语保持一致。谓语是否用虚拟语气，要视句子的具体含义而定。(4)类似的结构还有provided that（=on the condition that）相当于“如果”“在某种条件下”的意思。【分析】【分析】given that.=if you consider that.意为“考虑到，鉴于”，引导的是一个状语从句。3.Given that Yuans hybrids have made him quite wealthy,one might think he would retire to a life of leisure.考虑到杂交水稻使袁隆平变得相当富有

32、，人们可能认为他会退休享受闲适的生活。例1Given that theyre inexperienced,theyve done a good job.在缺乏经验的情况下,他们的工作已经算是做得相当不错了。例2Given that he gracefully apologized,the woman accepted his apology.在他有礼貌地道歉后，这位女士接受了他的道歉。翻译翻译考虑到自己挣得不多，考虑到自己挣得不多，我用钱通常比较精打细算，这也我用钱通常比较精打细算，这也是迫不得已。是迫不得已。Usually,I am sensible with money,as I have

33、 to be,given that I dont earn that muchgivenGiven more attention【练习】用学到的知识完成句子The work must be done within the (give)time.要是对这些树多加注意，它们会长得更好。If the trees had been given more attention,they could be grown better.,the trees could have grown better.给以时间的话，他们可能会同意。If they are given time,theyll probably

34、agree.,theyll probably agree.鉴于她对小孩的兴趣，我敢肯定教书是她最适合的职业。Given her interest in children,Im sure teaching is the right career for her.,Im sure teaching is the right career for her.Given timeGiven that she is interested in childrenChinas third-generation hybrid rice achieves record-breaking yieldsTechnol

35、ogy 18:19,24-Oct-2019 The third-generation hybrid rice developed by Chinese scientist Yuan Longping and his team achieved record-breaking yields,according to the test results of its first public yield monitoring from Monday to Tuesday.The final yield of the tested variety,G3-1S/P19,came to 1,046.3 k

36、ilograms per mu(about 667 square meters),based on two plots of land in Qingzhu Village under the city of Hengyang in central Chinas Hunan Province.Experts agreed that the rice has a stout stem,fertilizer tolerance,lodging resistance,large spike and more grains.plot:a small piece of land for a partic

37、ular purpose 试验田stout:Stout objects are strongly made from thick,strong materials结实的，厚实的，牢固的stem:the stick-like central part of a plant that grows above the ground（植物的）干，茎，梗，柄lodging resistance:抗倒伏性spike：a very high amount,price,or level,usually before a fall（通常指下跌前）非常高的数量、价格或程度Shorter growth period

38、“One of the most important characteristics of the third-generation hybrid rice is that it has a shorter growing period,”said Qian Qian,deputy director of the China National Rice Research Institute.Qian said some previous high-yielding hybrid rice varieties in China took 160 to even 180 days from sow

39、ing to harvesting,while the figure was shortened to around 125 days for the new variety.“A shorter growth period can reduce the use of pesticides(杀虫剂)and fertilizers(肥料),thus reducing cost and improving production efficiency,”Qian said.Easier to be cultivated by ordinary farmersUnlike the previous t

40、wo generations that required a large amount of water and fertilizers as well as demanding growing conditions and technological support,the third-generation hybrid rice can more easily be cultivated by ordinary farmers.The soil,altitude and climate of the test site were not“ideal conditions”carefully

41、 selected beforehand but were close to the paddies of ordinary farmers,according to Zhao Bingran with Hunan hybrid rice research center.At present,Chinas average yield of rice is about 500 kilograms per mu.Ordinary farmers can produce 600 to 700 kilograms of rice per mu by growing some excellent sec

42、ond-generation hybrid rice varieties,said Li Xinqi,a researcher with Hunan hybrid rice research center.“However,under the same planting conditions and environment,the yield of the third-generation hybrid rice could reach 800 kg per mu,”Li added.A farmer drives a tractor to harvest the third-generation hybrid rice.Xinhua Photocultivated:Cultivated land is used to grow crops 已垦殖的；用于耕作的altitude:height above sea level海拔，海拔高度beforehand:earlier(than a particular time)事先，预先Thank you!