Unit2 Building the future Grammar and usage 课件-2022-2023学年高中英语牛津译林版（2020）选修第二册

B9U2 Grammar & Composition The Elements of a Paragraph 段落基本要素 Writing a paragraph is a lot like making a delicious hamburge: Topic Sentence Supporting Sentences Concluding Sentence Task 1：Read the article on page 20 and find the Topic Sentence of each paragraph to help you fill in the following table. Introduction the environment all living things Task 2：Read the blog post again and use the Topic Sentences you’ve found to help you locate the answers to the following Qs: (1) Why are Mount Qomolangma and the Mariana Trench mentioned in the first paragraph? (2) How does white pollution cause long-term damage to the environment? (3) Are all living things negatively affected by white pollution? List some specific examples to support your opinion. (1) Why are Mount Qomolangma and the Mariana Trench mentioned in the first paragraph? They are mentioned to emphasize that white pollution is a widespread problem. (2) How does white pollution cause long-term damage to the environment? Firstly, (seldom recycle). Secondly, (decompose slowly) (3) Are all living things negatively affected by white pollution? List some specific examples to support your opinion. Yes. No living thing is safe from plastic pollution. For example, (plant) Also, (animal) Moreover, (humans) Task 3：Identify the elements of paragraphs 2 and 3. / / / / Para. 2 Para. 3 Topic sentence Supporting sentences Concluding sentences (1) (2) - (4) (5) (6) (7) - (12) (13) Para. 2 Para. 3 Topic sentence Supporting sentences Concluding sentences (1) (2) - (4) (5) (6) (7) - (12) (13) Task 4：Work out the rules. states explain repeats ↓ Task 5：Apply the rules. A / / / / A Task 5：Apply the rules. (2) / (3) (1) (5) / (4) (7) / (8) (6) (9) / (10) (14) / (13) (12) / (11) Task 6：Read the article in B2 again and answer the following Qs (1) What motivates the Indian company to create eatable spoons? Witnessing ... (throw away) & (wind up in landfills). (2) Why are edible spoons environmentally friendly? Because