(
课件网) Period 3 Using Language Ⅱ Learning aims 1. To learn the main idea of the text. 2. To learn the necessary parts of an argumentative essay. 3. To learn useful language points. 4. To learn expressions of giving opinions. Leading-in VS Rural life Urban life What concerns many people about the use of pesticides 2. How is organic farming different from chemical fertilisers 3. What is the goal of using organic farming methods Their long-term use can sometimes harm both the land and people’s health. Farming without using any chemicals. Farmers focus on keeping their soil rich and free of diseases through natural means. Grow good food while avoiding damage to the environment or to people’s health. Reading Comprehension Fast reading Careful reading Part 1 : para1 & para2 Part 2 : para 3 Part 3: para 4 Part 4: para 5 The problems with chemical farming What organic farming is Organic methods for producing rich soil Why man-made chemicals are still used in farming 1. Try to summarize the main idea of each part. Part 1 : Part 2¶ 3 Part 4¶ 5 ·Pesticides can kill helpful_____ ·Some pesticides have been _____ because of the_____ ·Crops grown with chemical fertilisers usually _____ to be full of_____ . bacteria and insects prohibited damage they caused grow too fast nutrition ·Many organic farmers use_____ as fertiliser. natural waste from animals ·They often_____ grown in each field _____They also plant crops that use _____of the soil to help keep it rich. change the kind of crop every year different depths ·Organic farming is nowhere near able to meet the high _____ demand for food around the world 2. Fill in the blanks. Chemical pesticides and artificial fertilisers have been in widespread use in farming 1. the middle of the 20th century,but scientists found that their long-term use can sometimes 2. harm to both the land and people’s health. In most 3. (country),some pesticides like DDT have been prohibited because of the damage 4. (cause) to people and the environment. 5. (solve) the problem, some farmers have switched to organic farming. They use natural waste from animals as fertiliser instead 6.____ artificial fertilisers. 3. Read the passage again and fill in the blanks. since do countries caused To solve of By doing so, they make the soil in their fields 7._____(rich) in minerals than before. Many other methods are also used to produce rich soil. Farmers often change the kind of crop grown in each field every year. In this way, some important minerals 8._____(put) back into the ground. Some people would prefer to stop the use of man-made chemicals in agriculture 9 ._____ (complete), but organic farming can’t serve the high demand for food around the world. So scientists have to find a suitable solution 10._____the problem. completely to are put richer 1.digest vt.& vi.消化 vt.领会;领悟 (2023·全国乙卷)Within weeks, it had all bee ... ...
