Unit 5 Working the Land Using Language Period 2 课件 -2023-2024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 Period 2 Warming-up Look at the pictures and the tittle, and think about the questions. What do you know about chemical farming? What about organic farming? Chemical Farming VS Organic Farming Chemical farming is farming using _____________________________________, while organic farming is simply farming __________ using any chemicals. Reading Scan the whole passage and find the definition of chemical farming and organic farming. chemical pesticides and artificial fertilisers without * Reading Read the text, and then answer the questions. 1. Why did many farmers welcome the introduction of chemical farming? 2. 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. * Reading 3. What is one problem with the use of chemical fertilisers? 4. How is organic farming different from chemical farming? Organic farming is simply farming without using any chemicals. Organic farmers focus on keeping their soil rich and free of diseases through natural means. Crops grown with them usually grow too fast to be rich in nutrition. * Reading 5. Why do organic farmers change the kind of crop grown in a field every year? 6. How is organic farming different from chemical farming? The goal of using organic farming methods is to grow good food while avoiding damage to the environment or to people’s health. Yes, I think this goal can be reached. Farmers worked for centuries without using any kinds of chemicals and without harming the environment, and the food they produced was just fine. Different crops are grown because they put important minerals back into the ground, making it ready for the next batch of crops. * Reading Match the main ideas (A-D) below with the paragraphs. Then complete the sentences in the ta