Unit 5 Using Language Reading for Writing 课件-2022-2023学年高中英语人教版（2019）选择性必修第一册

Unit 5 Working the Land Using Language - Writing Kevin Oct. 2022 Read the text, and then answer the questions on page 56. Why did many farmers welcome the introduction of chemical farming? What concerns many people about the use of pesticides? Many farmers welcomed them as a great way to fight crop diseases and increase production. Their long-term use can sometimes harm both the land and people’s health. 2 Read the text, and then answer the questions on page 56. What is one problem with the use of chemical fertilisers? How is organic farming different from chemical farming? Crops grown with them usually grow too fast to be rich in nutrition. Organic farming is simply farming without using any chemicals. Organic farmers focus on keeping their soil rich and free of diseases through natural means. 3 Read the text, and then answer the questions on page 56. Why do organic farmers change the kind of crop grown in a field every year? Different crops are grown because they put important minera