Unit+5+Using+Language+Writing 高中英语人教版（2019）选择性必修第一册+.pptx

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1、Chemical Versus Organic FarmingPredication1.What is the farmer doing in the picture?Why?2.What is the farmer wearing?Why?Spraying chemical pesticides on the crops.v.喷洒n.杀虫剂Wearing a mask and hat.It may harm peoples health.1.What is chemical farming?What is organic farming?Chemical Versus Organic Far

2、mingRead for title and typeOrganic farming is simply farming _.Chemical farming is farming with _,especially _ and _.while 2.What type of writing is this passage?A.Description B.Expository C.Argumentation D.Narrationchemicalschemical pesticidesartificial fertilizerswithout chemicalsPara.1 Para.3 Rea

3、d and Discuss 15minutes structure1.Match the main ideas with the paragraphs on page 56.2.Draw the structure of the text.details1.Why did many farmers welcome the introduction of chemical farming?2.What are the problems with chemical farming?3.What are the benefits of organic farming?4.What is the pr

4、oblem of organic farming?Requirements：1.Read the passage independently and finish the tasks above in 10 minutes.(You can mark the answers in the text and use the scanning and skimming reading strategy.)2.Discuss with your partners and try to solve your puzzles about the tasks above or about the text

5、.take notes down while discussing mark the unsolved problems and be ready to put up questionsRead for structureChemical Versus Organic Farming1.Match the main ideas with the paragraphs on page 56.Para 1-2 Para 3Para 4Para 5 A.What organic farming is D.The problems with chemical farmingB.Why man-made

6、 chemicals are still used inC.Organic methods for producing rich soil 2.Draw the structure of the text.Evaluate chemical farming and organic farming Find more about the 2 kinds of farming:1.Why did many farmers welcome the introduction of chemical farming?2.What are the problems with chemical farmin

7、g?3.What are the benefits of organic farming?4.What is the problem of organic farming?Many farmers welcomed them as a great way to and.both the land and peoples health.Food:nutrition,essential minerals,and flavour.It and also aiming to to the environment or to peoples health.Organic farming is aroun

8、d the world.prosprosconsconsRead for writingExpressions Use your own words to explain the whole text with the following mindmap.Chemical FarmingOrganic Farmingwhat benefits problems what benefits problems Authors Thinking There is still a long way to find a suitable solution that Farming with chemic

9、als,especially chemical pesticides and artificial fertilizers a great way to and.both the land and peoples health.Food:nutrition,essential minerals,and flavour.Farming without chemicals makes the soil richer in minerals keeps the air,soil,water and crops free of chemicals,avoid damage to the environ

10、ment or to peoples health.Organic farming is around the world.Para1:howeverPara2:for example,not only.but also,in addition,in fact,as for,but,as wellPara3:as an alternative,for example,alsoPara4:also,for instance,for example,butPara5:thereforeRead for writing-Find the Transitional Words(过渡词过渡词/连接词连接

11、词)contrast对比对比 illustrate解释解释add补充补充cause and effect因果因果introduce a new topic引入新话题引入新话题Thinking What is the authors attitude towards organic farming?A.Negative B.ambiguous C.objective D.supportive What is your opinion on chemical or organic farming?Write an anrgumentative passage in the next period.