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课件网) Using Language 读写课 Chemical Versus Organic Farming UNIT5 WORKING THE LAND 春秋熊猫熊猫出品 Leading in Suppose that you are going to a supermarket to buy some vegetables for the dinner of family reunion... 1.What’s the difference between the gingers/onions 2.Why do they enjoy different prices Organic farming is not pesticide, fertilizer, and other synthetic growth agents of production, but use manure for fertilizer and other organic fertilizers. Which one is organic farming × × √ chemical pesticides artificial fertilisers organic fertilizer Chemical versus organic farming Fast Reading Chose the main ideas (A-D)below with the paragraphs.Then complete the sentences in the table. 01 02 03 04 A 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 farming part main idea Detail 1-2 Pesticide can kill helpful . some pesticides have been ,because of the . Crops grown with chemical fertilisers usually to be full of . 3 Many organic farmers use as fertiliser. 4 They often grown in each field . They also plant crops that use of the soil to help keep it rich. 5 Organic farming is nowhere near able to meet the high . D A C B bacteria and insects prohibited damage they cause grow too fast nutrition natural waste from animals change the kind of crop demand for food around the world different depths every year Chemical versus organic farming Details Reading 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 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 people’s health. para.1 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.2 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 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, and they often have less flavour as well. 3. What is one problem with the use of chemical fertilizers Crops grown with them usually grow too fast to be rich in nutrition. mineral n. prohibit v. para.4 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 on keeping their ... ...
