Unit5 Working the land Using Language Chemical Versus Organic Farming 课件 -2023-2024学年人教版高中英语选择性必修第一册

Chemical or Organic Farming? Enjoy some pictures vegetables & fruits Fresh vegetables & fruits Chemical or Organic Farming Book4 Unit2 Have you ever bought any tomatoes or carrots online? organic Listen to the radio What is chemical farming? What is organic farming? fertilizer chemical fertilizers natural fertilizers chemical farming organic farming chemical fertilizers natural fertilizers Better？ What is chemical farming? Using chemical fertilizers in farming. What is organic farming? It is simply farming without using any chemicals. 01 Fast Reading 12 Find out the topic sentence of each paragraph. Task 1 Skimming Effect of chemical fertilizer Problems caused by chemical fertilizers. P1. P2. Farmers and customers turn to organic farming. (advantages) Other methods to keep the soil fertile. P3. P4. Match the main idea of each paragraph. Find out the main idea of the passage by filling in the blanks. ________ _________can cause many problems, so _________ __________is becoming more popular. Chemical fertilizers farming organic 02 Careful Reading 16 Why are chemical fertilizers so popular in farming today? Because they are cheap. They are a great way to stop crop disease and increase production. They can cause damage to the land. They are benefit for people’s health. Task 2 Paragraph 1 What problems are caused by chemical fertilizers? Careful reading Paragraph 2 First, they can …. They also stay in the ground … In addition, it usually grows too fast … Tips : Here are the problems caused by chemical fertilizers. Chemicals Damage the land Stay in the water Affect crops, animals and humans build up damage people's health Make the food short of nutrition First, ... In addition, ... also... therefore 1. What is organic farming? 1.Organic farming is farming without