Unit 5 Using Language Writing 课件ppt-(2023新教材)高中英语人教版(2019)选择性必修第一册.pptx

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1、Evaluate chemical farming and organic farmingChemical Versus Organic Farming (体育,法律上)对抗;(比较两种不同想法、选择等)与相对,与相比vss chemical versus organic farming Chemical farming is farming using _ and _ while organic farming is simply farming _ using any chemicals.chemical pesticidesartificial fertiliserswithoutRea

2、d the passage,and then answer thequestions on page 56.1.Why did many farmers welcome the introduction of chemical farming?Many farmers welcomed them as a great way to fight crop diseases and increase production.2.What concerns many people about the use of pesticides?Their long-term use can sometimes

3、 harm both the land and peoples health.Para.1 3.What is one problem with the use of chemical fertilisers?Crops grown with them usually grow too fast to be rich in nutrition.Para.2 4.How is organic farming different from chemical farming?Organic farming is simply farming without using any chemicals.O

4、rganic farmers focus on keeping their soil rich and free of diseases through natural means.Para.3 5.Why do organic farmers change the kind of crop grown in a field every year?Different crops are grown because they put important minerals back into the ground,making it ready for the next batch of crop

5、s.Para.4 6.What is the goal of using organic farming methods?Do you think it can be reached?Why or why not?The goal of using different organic farming methods is to grow good food while avoiding damage to the environment or to peoples health.Para.4 Read for the main ideasMatch the main ideas(A-D)bel

6、ow with the paragraphs.ParagraphMain idea1-2345A.What organic farming is B.Why man-made chemicals are still used in farming C.Organic methods for producing rich soil D.The problems with chemical farmingParagraphMain IdeaDetail1-2Pesticidescankillhelpful .Somepesticideshavebeen because of the .Cropsg

7、rownwithchemicalfertilisersusually to be full of .3Manyorganicfarmersuse as fertiliser.ParagraphMain IdeaDetail4 Theyoften grown in each field .Theyalsoplantcropsthatuse of the soil to help keep it rich.5Organicfarmingisnowherenearabletomeetthehigh .Read for organization Title Text type:Exposition T

8、he _ 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 Draw the structure of the texthowever,but,on the contrary,instead,on one hand on the other hand for example,for instance,in fact,such as,t

9、ake 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 alternative contrast illustrateadd information cause and effectintroduce a new topicWhat writing

10、 technique does the writer employ?Qi Min Yao Shu(齐民要术齐民要术)is a comprehensive agricultural book written by Jia Sixie(贾思勰贾思勰),an outstanding Chinese agronomist in the Northern Wei Dynasty,and one of the earliest monographs in the history of agronomy in the world.It is the most complete agricultural bo

11、ok in China.1.output,attaining,was comprised of,for instance,soil,depth,diverse,essential2.Whether/Where,That,What,Whether/When,Whether,Who,WhyThen answer the questions.1.Why did Jia Sixie investigate good ways of farming?2.What makes Qi Min Yao Shu an important book in Chinas agricultural history?B

12、ecause it was comprised of sound advice and practice for people doing agricultural work.He was an official who wanted to help people.Chemical pesticides and artificial fertilisers have been in widespread use in farming since the middle of the 20th century.When they were first introduced,many farmers

13、 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 use can sometimes harm both the land and peoples health.Para 1For example,pesticides can damage the land by killing not only harmful bacteria and inse

14、cts,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 these chemicals may make them ill and even cause cancer.In fact,

15、some pesticides like DDT have been prohibited in most countries because of the damage they cause to people and the environment.As for chemical fertilisers,crops grown with them usually grow too fast to be rich in nutrition.They may look beautiful on the outside,but inside there is usually more water

16、 than essential minerals,and they often have less flavour as well.Para 2This affects the crops grown on the land and,in turn,the animals and humans who digest them.这会影响土里种植的作物,继而影响消化这些作物的人畜。这会影响土里种植的作物,继而影响消化这些作物的人畜。digest /dadest/vt.&vi.消化消化 vt.领会;领悟领会;领悟 /dadest/n.摘要;文摘摘要;文摘 You should allow a lit

17、tle time after a meal for the food to digest.He paused,waiting for her to digest the information.In cases like this,you can try making a digest of your notes.Readers Digest As an alternative,some farmers have switched to organic farming,and many customers have turned to organic food when they shop a

18、t the local grocery.Organic farming is simply farming without using any chemicals.Organic farmers focus on keeping their soil rich and free of disease through natural means.For example,many organic farmers use natural waste from animals as fertiliser.This makes the soil in their fields richer in min

19、erals.It also keeps the air,soil,water,and crops free of chemicals.Para 3使使.免受免受.伤害(或影响等)伤害(或影响等)Organic farmers also 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 gr

20、ow beans there the next.Why different crops are grown is because they put important minerals back into the ground,making it ready for the next batch of crops.Organic farmers also plant diverse crops that used different depths of soil to help keep it rich.For example,peanuts grow on the grounds surfa

21、ce,but many other vegetables put down deep roots.The goal of using different organic farming methods is to grow good food while avoiding damage to the environment or to peoples health.Para 4Why different crops are grown is because they put important minerals back into the ground,making it ready for

22、the next batch of crops.为什么要种植不同的作物,是因为他们把重要的为什么要种植不同的作物,是因为他们把重要的矿物质放回地里,让它为下一批作物做好准备。矿物质放回地里,让它为下一批作物做好准备。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 th

23、e 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 people and the environment as healthy as possible.serve/meet/satisfy the demand for 满足对满足对.需要需要nowhere near 远没有;远

24、不及远没有;远不及Para 5What keeps them from doing so is the fact that chemical farming serves the high demand for food around the world.同位语从句同位语从句1.可以跟同位语从句的名词通常有可以跟同位语从句的名词通常有 news,idea,fact,promise,question,doubt,thought,hope,message,suggestion,words(消息)(消息),possibility 等抽象名词。等抽象名词。2.同位语从句用来对前面抽象名词的具体内容进行

25、同位语从句用来对前面抽象名词的具体内容进行解释说明解释说明。I heard the news_our team had won.We havent yet settled the problem _we are going to spend our summer vacation.thatwhere为积极响应为积极响应学校学校英语英语网站网站健康生活健康生活栏目的征文活动,栏目的征文活动,请根据以下请根据以下要点要点写一篇议论文投稿,说明有机农耕的好处写一篇议论文投稿,说明有机农耕的好处:1有机农产品更健康,让人放心;有机农产品更健康,让人放心;2有机农耕对环境不造成破坏;有机农耕对环境不造成

26、破坏;3有机农耕让农民增加收入。有机农耕让农民增加收入。注意注意:1.词数词数80左右;左右;2.可以适当增加细节,以使行文连贯。可以适当增加细节,以使行文连贯。Writing PracticeAdvantages of Organic Farming Compared to chemical farming,organic farming enjoys its overwhelming superiority.The reasons are as follows.Firstly,organic food is healthier and safer as in organic farming

27、,poisonous chemicals like pesticides are forbidden from being used on crops.Furthermore,organic farming is environmentally friendly.For instance,organic farmers use natural waste from animals as fertilizer,which is harmless to the environment.Lastly,farmers can increase their income through organic farming.As people tend to pursue a green life,they are more likely to buy organic fruit and vegetables despite the high prices.With incomparable advantages,therefore,organic farming is expected to benefit more people in the future.What do you know about the two farming methods?

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