Unit 3 Environmental Protection Reading and Thinking 课件-2022-2023学年高中英语人教版（2019）选择性必修第三册

Environmental Protection Reading and Thinking 1 Learning objectives By the end of this period, students will be able to: 1. know about climate change and summarise the main idea of each paragraph. 2. learn about the "greenhouse effect" and create a diagram describing how it works. 3. analyse the consequences of climate change and enhance the awareness of environmental protection. 4. voice their personal opinions about how to deal with climate change. 2 Teaching Procedures 1. Lead-in 2. Pre-reading 3. While-reading 4. Post-reading 5. Homework 3 Lead in 1. Where do you think this photo was taken? 2. What does this photo make you think of? Earth provides enough to satisfy every man’s needs, but not every man’s greed. 地球能满足人类的需要，但不能满足人的贪婪。 4 Pre-reading 1 Before you read, look at the graph and the picture below and discuss these questions in groups. 5 1 What is the graph about? What information can you get from it? The graph shows the change in the Global Surface Temperature between 1920 and 2016. It shows the temperature anomaly, which shows how much the temperature has risen above what it would usually be at a base level. 2 Have you ever seen the photo before? What might be the story behind it? I haven't seen this photo, but I have seen photos like it. The story is that the polar bear starved to death because it could not find enough to eat. 6 While-reading Activity 1 Reading for the main idea and the structure Skim the text and match the main idea of each paragraph. Paragraph 1 A. The reasons causing the increase in temperature. Paragraph 2 B. Introduce the present situation about climate change. Paragraph 3 C. A real case showed the impact the increase in temperature had on
Earth's ecology. Paragraph 4 D. What should we humans do about global warming. Paragraph 5 E. The serious consequences of global warming. 7 While-reading Activity 2 Read the text and answer the questions. 1 What happened to the polar bear in the photo? Why d