Unit 5 Reading for Writing (ppt课件)-2022新人教版(2019)《高中英语》选择性必修第一册.pptx
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1、 VersusLearning Objectives1.Integrate and describe the differences between chemical and organic farming and their respective advantages and disadvantages.2.Analyze and judge the authors writing techniques,learn to master the main discourse features of argumentation.3.Express their views on chemical
2、farming or organic farming in written form in appropriate language.请替换文字内容,添加相关标题,修改文字内容,也可以直接复制你的内容到此。请替换文字内容,添加相关标题,修改文字内容,也可以直接复制你的内容到此。点击请替换文字内容请替换文字内容,添加相关标题,修改文字内容,也可以直接复制你的内容到此。请替换文字内容,添加相关标题,修改文字内容,也可以直接复制你的内容到此。请替换文字内容,添加相关标题,修改文字内容,也可以直接复制你的内容到此。请替换文字内容,添加相关标题,修改文字内容,也可以直接复制你的内容到此。点击请替换文字内
3、容Organic grapesOrganic grapesC Chemical hemical grapesgrapesWhich kind of fruit do you want to choose to eat?请替换文字内容,添加相关标题,修改文字内容,也可以直接复制你的内容到此。请替换文字内容,添加相关标题,修改文字内容,也可以直接复制你的内容到此。点击请替换文字内容请替换文字内容,添加相关标题,修改文字内容,也可以直接复制你的内容到此。请替换文字内容,添加相关标题,修改文字内容,也可以直接复制你的内容到此。请替换文字内容,添加相关标题,修改文字内容,也可以直接复制你的内容到此。请替
4、换文字内容,添加相关标题,修改文字内容,也可以直接复制你的内容到此。点击请替换文字内容What kind of What kind of fertilizerfertilizers s do farmers use?do farmers use?Chemical fertilizersNatural waste from animalsPrediction-what is the main idea of the passageIt mainly talks about the chemical farming and organic farming请替换文字内容,添加相关标题,修改文字内容,
5、也可以直接复制你的内容到此。请替换文字内容,添加相关标题,修改文字内容,也可以直接复制你的内容到此。点击请替换文字内容请替换文字内容,添加相关标题,修改文字内容,也可以直接复制你的内容到此。请替换文字内容,添加相关标题,修改文字内容,也可以直接复制你的内容到此。请替换文字内容,添加相关标题,修改文字内容,也可以直接复制你的内容到此。请替换文字内容,添加相关标题,修改文字内容,也可以直接复制你的内容到此。点击请替换文字内容 Chemical farmingChemical farming farming using farming using chemical chemical pesticid
6、es and artificial pesticides and artificial fertilisers.fertilisers.Organic farming Organic farming simply farming simply farming without using any without using any chemicalschemicals.1.Why did many farmers welcome the introduction of chemical farming?2.What concerns many people about the use of pe
7、sticides?3.What is one problem with the use of chemical fertilisers?4.How is organic farming different from chemical farming?5.Why do organic farmers change the kind of crop grown in a field every year?6.What is the goal of using organic farming methods?Do you think it can be reached?Why or why not?
8、A.What organic farming is B.Why man-made chemicals are still used in farmingC.Organic methods for producing rich soil D.The problems with chemical farmingParagraphMain IdeaDetail1-2Pesticidescankillhelpful .Somepesticideshavebeen because of the .Cropsgrownwithchemicalfertilisersusually to be full of
9、 .3Manyorganicfarmersuse as fertiliser.ParagraphMain IdeaDetail4 Theyoften grown in each field .Theyalsoplantcropsthatuse of the soil to help keep it rich.5Organicfarmingisnowherenearabletomeetthehigh .Para1Para1 Chemical pesticidespesticides and artificial fertilisers have been in in widespreadwide
10、spread use use in farming since the middle of the 20th century.When they were first introducedintroduced,many farmers welcomed them as a great way to fight crop fight crop disease and increase productiondisease and increase production.Over timeOver time,however,what some scientists have foundwhat so
11、me scientists have found is that their long-term use can sometimes harm both the land and peoples health.pesticide n.杀虫剂 introduce v.推行;实施;采用in widespread use 在广泛使用中over time 随着时间的流逝Para2 For example,pesticides can damage the land by killing not only harmful bacteria and insects,but also helpful one
12、s.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,some pesticides like DDT
13、 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 than essential minerals
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