Unit 5 Using Language Writing -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、【版本：新人教册别：选择性必修一】Using Language:Write an argumentative essay 语言目标语言目标：理解、记忆并运用语篇中的词/块/句，尤其是关于有机农业和化学农业优势及问题的相关表达；能够分析并运用话语标记词阐述观点，并理清其逻辑关系。能力目标：能清晰地表达观点，并按一定的逻辑顺序进行说理论证，表达自己对农业发展的看法。情感目标：能够了解农业在我国经济发展中的基础地位和重要作用，理解农业可持续发展工作的必要性和重要意义。Learning ObjectivescontentsLeading-inWritingReadingAssignmentIIILea

2、ding-inReadingRead for writing 1(useful expressions)_(化学农药和人工肥料)have been in widespread use in farming since the middle of the 20th century.When they were first introduced,many farmers welcomed them as a great way to _ _(抵御作物病害、增加产量).Over time,however,what some scientists have found is that _ (长期使用它

3、们有时会危害土地和人类健康).Chemical pesticides and artificial fertilizers disease and increase productiontheir long-term use can sometimes harm both the land and peoples healthPara 1CHEMICAL VERSUS ORGANIC FARMINGfight cropRead for writing 1(useful expressions)For example,pesticides can damage the land by _(杀死有

4、害细菌和昆虫的同时，也杀死有益的细菌和昆虫).In addition,these chemicals can stay in the soil and underground water sources for a long time.This affects the crops grown on the land and,_(继而影响消化这些作物的 人 畜).M a n y p e o p l e w o r r y t h a t t h e s e c h e m i c a l s m a y _(致病，甚至引发癌症).In fact,some pesticides like DDT

5、have been prohibited in most countries because of the damage they cause to people and the environment.As for chemical fertilizers,crops grown with them usually _(生长过快而营养不足).They may look beautiful on the outside,but inside there is usually more water than _(必需矿物质),and they often _(口感较差)as well.killi

6、ng not only harmful bacteriain turn,the animals and humans who digest themmake them ill and even causegrow too fast to be rich in nutritionessential mineralshave less flavorPara 2CHEMICAL VERSUS ORGANIC FARMINGand insects,but also helpful onescancerRead for writing 1(useful expressions)_(作为一种替代方法),s

7、ome farmers have switched to _(有机耕作),and many customers have turned to _(有机食品)when they shop at the local grocery.Organic farming is simply farming _ _(不使用任何化学品).Organic farmers focus on _ (通过天然的方法保持土壤肥沃，没有病害).For example,many organic farmers use natural waste from animals as fertilizer.This _(使农田土壤

8、富含矿物质).It also keeps the air,soil,water,and crops free of chemicals.As an alternativeorganic farmingorganic foodwithout using anykeeping their soil rich and free of disease through natural meansmakes the soil in their fields richer in mineralsPara 3CHEMICAL VERSUS ORGANIC FARMINGchemicalsRead for wr

9、iting 1(useful expressions)Organic farmers also use many other methods to produce rich soil.They often _(每年更换每块农田种植的作物种类).For instance,they may grow corn or wheat in a field one year,and then grow beans there the next.Why different crops are grown is because they put important minerals back into the

10、 ground,making it ready for the next batch of crops.Organic farmers also _(种植土壤深度要求不同的多样化作物)to help keep it rich.For example,peanuts grow on the grounds surface,but many other vegetables put down deep roots.The goal of using different organic farming methods is to _(生产优质食物，同时避免损害环境和人类健康).change the

11、kind of crop grown in each field every yearplant diverse crops that use differentgrow good food while avoiding damage to the environment or to peoples health.Para 4CHEMICAL VERSUS ORGANIC FARMINGdepths of soilRead for writing 1(useful expressions)Some people would prefer to stop the use of man-made

12、chemicals in agriculture entirely.What keeps them from doing so is the fact that chemical farming _(满足了全世界对事物的高要求).Organic farming is nowhere near able to meet that need.Therefore,_(想要找到一个合适的解决方案，使人类和环境尽可能保持健康，又让人们有足够的食物可吃，还有很长的路要走).serves the high demand for food around the worldsuitable solution t

13、hat puts sufficient food on the dinner table while keeping people and the environment as healthy as possible.Para 5CHEMICAL VERSUS ORGANIC FARMINGthere is still a long way to find aRead for writing 2(discourse markers)Chemical pesticides and artificial fertilisers have been in widespread use in farm

14、ing since the middle of the 20th century.When they were first introduced,many farmers welcomed them as a great way to fight crop disease and increase production.Over time,_,what some scientists have found is that their long-term use can sometimes harm _ the land _ peoples health._,pesticides can dam

15、age the land by killing _ harmful bacteria and insects,_ helpful ones._,these chemicals can stay in the soil and underground water sources for a long time.This affects the crops grown on the land and,in turn,the animals and humans who digest them.CHEMICAL VERSUS ORGANIC FARMINGhoweverbothandFor exam

16、plenot onlybut alsoIn additionRead for writing 2(discourse markers)CHEMICAL VERSUS ORGANIC FARMINGMany people worry that these chemicals may make them ill and even cause cancer._,some pesticides like DDT have been prohibited in most countries because of the damage they cause to people and the enviro

17、nment._ chemical fertilisers,crops grown with them usually grow too fast to be rich in nutrition.They may look beautiful on the outside,_ inside there is usually more water than essential minerals,_ they often have less flavour _._,some farmers have switched to organic farming,and many customers hav

18、e turned to organic food when they shop at the local grocery.Organic farming is simply farming without using any chemicals.In factAs forbutandas wellAs an alternativeRead for writing 2(discourse markers)CHEMICAL VERSUS ORGANIC FARMINGOrganic farmers focus on keeping their soil rich and free of disea

19、se through natural means._,many organic farmers use natural waste from animals as fertiliser.This makes the soil in their fields richer in minerals.It _ keeps the air,soil,water,and crops free of chemicals.Organic farmers _ use many other methods to produce rich soil.They often change the kind of cr

20、op grown in each field every year._,they may grow corn or wheat in a field one year,and then grow beans there the next._ _ they put important minerals back into the ground,making it ready for the next batch of crops.For examplealsoFor instancealsoWhy different crops aregrown is becauseRead for writi

21、ng 2(discourse markers)CHEMICAL VERSUS ORGANIC FARMINGOrganic farmers _ plant diverse crops that use different depths of soil to help keep it rich._,peanuts grow on the grounds surface,_ many other vegetables put down deep roots.The goal of using different organic farming methods is to grow good foo

22、d while avoiding damage to the environment or to peoples health.Some people would prefer to stop the use of man-made chemicals in agriculture entirely.What keeps them from doing so is the fact that chemical farming serves the high demand for food around the world.Organic farming is nowhere near able

23、 to meet that need._,there is still a long way to find a suitable solution that puts sufficient food on the dinner table while keeping people and the environment as healthy as possible.For examplealsobutTherefore however,but,on the contrary,instead,on one hand on the other hand for example,for insta

24、nce,in fact,such as,take for example bothand,not onlybut also,in addition,and,also,as well,whats more,besides,furthermore,moreover,whats worsewhyis because,therefore,for this reason,thus,consequently,as a ressultas for,as an alternativeRead for writing 2(discourse markers)contrast illustrate add cau

25、se and effectintroduce a new topicRead and Think(organization)Title Text type:Exposition The _ and _ of chemical farming.benefitsproblemsPart 1:(Para 1&2)What organic farming is and _.how it keep the soil richPart 2:(Para 3&4)Part 3:(Para 5)Conclusion Read for writing 3(paraphrase)Chemical pesticide

26、s and artificial fertilizers have been in widespread use in farming since the middle of the 20th century.When they were first introduced,many farmers welcomed them as a great way to fight crop disease and increase production.Over time,however,what some scientists have found is that their long-term u

27、se can sometimes harm both the land and peoples health.Para 1Though chemical farming is welcomed as an effective way to _,its long term extensive use can harm not only _ but also _.resist crop diseases and increase yieldthe landpeoples healthRead for writing 3(paraphrase)For example,pesticides can d

28、amage the land by killing not only harmful bacteria and insects,but also helpful ones.In addition,these chemicals can stay in the soil and underground water sources for a long time.This affects the crops grown on the land and,in turn,the animals and humans who digest them.Many people worry that thes

29、e chemicals may make them ill and even cause cancer.In fact,some pesticides like DDT have been prohibited in most countries because of the damage they cause to people and the environment.As for chemical fertilizers,crops grown with them usually grow too fast to be rich in nutrition.They may look bea

30、utiful on the outside,but inside there is usually more water than essential minerals,and they often have less flavor as well.Para 2As for _,it can kill both harmful and helpful ones,damaging the _,_,and thus _.Whats more,it tends to accumulate in the soil and groundwater,which _ soil,water,and relat

31、ed organisms and microorganisms,therefore affecting peoples health,even _.As to _,they may make food look bright,meanwhile,the food tends to be less _ in short of essential minerals and less _.pesticidesfood chain ecological balancethe landpollute and poisondeliciouscause cancerchemical fertilizersn

32、utritiousRead for writing 3(paraphrase)As an alternative,some farmers have switched to organic farming,and many customers have turned to organic food when they shop at the local grocery.Organic farming is simply farming without using any chemicals.Organic farmers focus on keeping their soil rich and

33、 free of disease through natural means.For example,many organic farmers use natural waste from animals as fertilizer.This makes the soil in their fields richer in minerals.It also keeps the air,soil,water,and crops free of chemicals.Para 3_ chemical farming,organic farming just use natural means ins

34、tead,never using any chemicals._,they use animal wastes as fertilizer,which can not only enrich the soil with _,but get the air,soil,water,and crops rid of chemical pollution,protecting ecological balanceDifferent fromFor instancemineralsin contrast with/on the contraryfor exampleOrganic farmers als

35、o use many other methods to produce rich soil.They often change the kind of crop grown in each field every year.For instance,they may grow corn or wheat in a field one year,and then grow beans there the next.Why different crops are grown is because they put important minerals back into the ground,ma

36、king it ready for the next batch of crops.Organic farmers plant diverse crops that use different depths of soil to help keep it rich.For example,peanuts grow on the grounds surface,but many other vegetables put down deep roots.The goal of using different organic farming methods is to grow good food

37、while avoiding damage to the environment or to peoples health.Para 4Read for writing 3(paraphrase)_,organic farmers also use other ways to _.For example,they change the types of crops planted on each farmland every year.Besides,_ are planted in different depths of the soil.By doing so,the diversity

38、of plants and the fertility of soil are preserved,thus providing _,and avoiding damage to people and environment.In additionkeep the soil fertile/richdiverse plantsgood-quality foodwhats more,besides,furthermore,moreoverSome people would prefer to stop the use of man-made chemicals in agriculture en

39、tirely.What keeps them from doing so is the fact that chemical faming serves the high demand for food around the world.Organic farming is nowhere near able to meet that need.Therefore,there is still a long way to find a suitable solution that puts sufficient food on the dinner table while keeping pe

40、ople and the environment as healthy as possible.Para 5Read for writing 3(paraphrase)Chemical farming has many health and environmental problems,however,it can increase production,thus providing _ around the world,and alleviating world hunger and poverty.By comparison,organic farming fails to serve i

41、t._,to tackle this problem providing green organic healthy food as well as staying in harmony with nature and environment,there is a long way to go.sufficient foodAs a resultthus,consequently,therefore chemical farmingPointDetailsPointRead for writing 4(notes on chemical farming)organic farmingPoint

42、DetailsPointRead for writing 4(notes on organic farming)WritingWriting Task近年来，媒体对近年来，媒体对“农业可持续发展农业可持续发展”“食品安全食品安全”等问题等问题作了一些报道，引作了一些报道，引发了许多讨论，发了许多讨论，到底哪种农业种植方式到底哪种农业种植方式有利于农业可持续发展并解决食品安全有利于农业可持续发展并解决食品安全问题呢？问题呢？如某英语报记者对你进行采访，如某英语报记者对你进行采访，征求对此现象的看法，请用英语征求对此现象的看法，请用英语写一篇写一篇议论文，表达自己的观点，并说明理由议论文，表达自己

43、的观点，并说明理由。BrainstormIn my opinion/in my view/in my eyes/as far as I am concerned,organic farming is preferable to chemical farming,because its beneficial to both peoples health and the environment,and favorable to sustainable development of agriculture.In my opinion,I agree/am for/be in favor of che

44、mical farming,because it can fight crop decease and increase production,thus serving the high demand for the food around the world.Whats your argument?Whats your argument?Brainstorm organization 1Part 1Part 2Part 3Brainstorm organization 2 (驳论驳论)Part 1Part 2Part 3chemical fertilizers may harm the en

45、vironment by spoiling the land,making it become harder,also pollute the water and the air during its production,transportation and using.Brainstormpoints and details about chemical farmingchemical farmingmass production and low price may cause a waste of resourcesBrainstormpoints and details about o

46、rganic farmingorganic farmingorganic food has a higher price because of its higher cost,which can increase the income of farmers.Organic farming has a high cost of labors,and organic food is easy to rot(腐烂)without preservative.How to write an argumentative essaybrainstormpoints and detailsorganizati

47、ondiscourse markersargumentFinish the draft _ In my eyes,organic farming is preferrable to chemical farming,because its favorable to sustainable development of agriculture,beneficial to both peoples health and the environment and provide more nutritious food._,chemical farming _.Chemical pesticides

48、kill both harmful and helpful ones,damaging the food chain,ecological balance and thus the environment._,they tend to be hard to get rid of and accumulate in the soil and groundwater,which poison and pollute the soil,water,organism and microorganism.To start withMake your waste no longer wasteharms

49、the environmentWhats moreFinish the draft _,the polluted water,plants and animals _ as well.Though it may be true that the food we eat doesnt have enough pesticide in it to kill us immediately,over the years,this pesticide may _.In addition,the use of chemical fertilizers make the food l o o k b r i

50、 g h t._ _ _ _ _ _ _ _ _,t h e f o o d t a s t e s _.Besides,it is less _ in minerals.Whats worsedamage peoples healthlead to health problems and even cause cancerHowevernutritiousless delicious than that grown with chemicals Finish the draft _,organic farming benefits the sustainable development of