(课件网) How to write an argumentative essay Unit 5 Working the land -- Reading for writing In this class, you will: know more about the words and expressions related to chemical and organic farming; grasp the writing techniques of an argumentative essay by exploring the structure and language features of the sample text; develop critical thinking on sustainable agriculture. Learning objectives: 1. Which rice do you prefer Why Lead-in Chemical rice ￥5/kg Organic rice ￥20/kg or Chemical vs organic Submit an essay to CHINA DAILY voice your opinion on Chemical vs organic farming. Lead-in Task 1: Find out the definition of chemical and organic farming. Chemical farming: (Para 1) using chemical pesticides and artificial fertilizers Organic farming: (Para 3) without using any chemicals Read for information 2min Task 2: Finish the mind-map about the advantages and disadvantages of chemical and organic farming. fight crop disease increase production damage the land damage human's health make the food short of nutrition Read for information 4min Task 2: Finish the mind-map about the advantages and disadvantages of chemical and organic farming. Disadvantage keep soil rich & free of disease through natural means natural waste crops grown diverse crops Read for information Task 3: Match the main ideas below with the paragraphs. Para 1-2: Para 3: Para 4: Para 5: Read for structure A: What organic farming is B: Why man-made chemicals are still used C: Organic methods for producing rich soil D: The problems with chemical farming 2min Task 4: Divide the passage into 2 parts and analyze the structure of it. Read for structure Para 1-2 Para 3-5 1. What is the topic sentence of the first part (Para.1-2) Read for structure Point 1: Chemical farming can harm both the land and people's health. 2. What is the topic sentence of the second part (Para.3-5) Point 2: Organic farming keeps soil rich and free of disease through natural means. Read for structure 2. What evidence is employed to support point 1 (Para.2) Point 1: Chemical farming can harm both the land and people's health. kill helpful bacteria stay in soil and underground water make the food short of nutrition Supporting evidence 1: Supporting evidence 2: Supporting evidence 3: 1min Read for structure 2. What evidence is employed to support point 2 (Para.3-5) use natural waste as fertilizer change crop grown in each field every year plant diverse crops in different depths Point 2: Organic farming keeps soil rich and free of disease through natural means. Supporting evidence 1: Supporting evidence 2: Supporting evidence 3: 1min Read for structure 3. Summary: the outline of an argumentative essay. Beginning Body Ending Read for structure Introduce the topic Point 1 + evidence Point 2 + evidence restate the topic Task 5: Locate signposts(衔接词) and work out their functions. P1 Read for structure Task 5: Locate signposts and work out their functions. P2 Read ... ...
