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课件网) UNIT 5 WORKING THE LAND Using Language: Chemical Versus Organic Farming Lead-in Is there any other alternatives of chemical farming Make a predication according to the photo and the title. 1. What is the text about Chemical farming versus organic farming 2. What type of writing is it A. Narration B. Exposition C. Argumentation Prediction While-reading Listen and check your prediction 1. What’s chemical farming 2. What’s organic farming Para.1 Chemical farming is farming using chemical pesticides and artificial fertilizers. Para.3 While-reading Skim and match the questions with each para. A. Why are man-made chemicals still used in farming B. What are the problems with chemical farming C. What is organic farming D. What are the organic methods for producing rich soil Para 1-2 Para 3 Para 4 Para 5 1.Why did many farmers welcome the introduction of chemical farming 2. What concerns many people about the use of pesticides 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 While-reading Read and and answer the questions 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 harm both the land and people’s health. Para.1 While-reading Read and and answer the questions 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 While-reading Read and and answer the questions some pesticides like DDT have been prohibited in most countries because of the damage they cause to people and the environment. Para. Main idea Details 1&2 Problems with Chemical farming Topic sentence: Many farmers welcomed chemical farming as a great way to and . However,_____. For example, Pesticides can by killing bacteria and insects. In addition, . This affects not only but also _____. In fact, . As for chemical fertilizers, Crops are lacking in_____or have . increase production fight crop disease what some scientists have found is that their long-term use can sometimes harm both the land and people’s health. damage the land these chemicals can stay in the soil and underground water sources for a long time. the crops animals and humans nutrition/essential minerals less flavour Benefit Problem Solution switch to organic farming While-reading Read again and finish the table What words and expression in Paragraph 2 show the transitions between ideas 4. How is organic farming different from chemical farming Organic farming is simply farming without using any chemicals. Organic farmers focus on keeping their ... ...
