Reading and Thinking P26-28新人教版选择性必修 Book 3 Unit 3 ENVIRONMENTAL PROTECTIONLook at the picture and discuss the questions.1. Where do you think this photo was taken?2. What does this photo make you think of?1. I think this photo was taken in either the Arctic or Antarctica, as those places have large ice sheets like this.2. The photo makes me think of the problem of global warming.Now discuss the following questions.Pre-readingBefore you read, look at the graph and the picture below and discuss these questions in groups.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.12. Have you ever seen the photo before? What might be the story behind it?I havent 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. Read the text and answer the questions.While-reading21. What happened to the polar bear in the photo? Why did the writer write about it?The polar bear in the photo died of starvation. The writer wrote about it because it showed one of the effects of rising temperatures due to climate change.2. Why is the “natural” greenhouse effect important and necessary?The “natural” greenhouse effect is important because it warms the Earths surface and keeps it habitable.3. What are the consequences of high greenhouse gas emissions?High greenhouse gas emissions lead to more heat energy being tapped in the atmosphere and rising temperatures.4. Why did the author mention the climate scientists warning?The author mentioned the climate scientists warning because it is essential that we take action and so it needs to be brought to everyones attention.5. What is the authors purpose of writing this text?The authors purpose is to inform the reader and inspire them to do whatever they can to deal with this problem.Read the text again and creat a diagram describing how the greenhouse effect works.Draw a diagramDiagrams are very useful tools that can be used to brainstorm ideas, map out processes, show cause and effect relationships, explain a new idea or concept, and so on. When you read an essay about scientific issues, you can try drawing a diagram, which will not only allow you to visualise the problems more clearly but also can help demonstrate your creative thinking and problem-solving.3THE GREENHOUSE EFFECTEarthAtmosphereHeat reflected back to Earths surfaceHeat reflected back into spaceSunlightReflected sunlightDiscuss these questions in groups.1. What examples of extreme weather and disasters do you know? Can you make a list?There are sadly many examples of extreme weather and disasters I know of, such as the extreme rainfall in France and the drought in East Africa in 2014. There were also heatwaves on nearly every continent due to climate change.42. Do you think climate change is the result of human activity? Give your reasons.I do think that climate change is the result of human activities because the majority of scientists also think so, and also because global temperatures have followed the rise in global emissions and population.3. Who do you think should take responsibility for dealing with climate change? What can we do?I think we all need to take responsibility for dealing with it. Individuals can change their behavior and try to reduce their footprint, while companies and governments can do the same on the larger scale.Language points P26-27新人教版选择性必修 Book 3 Unit 3 ENVIRONMENTAL PROTECTION课文回顾根据课文内容填空。As we know, Earth is getting warmer and warmer, _results in melting ice and rising sea levels. In 2013, a dead polar bear _ (find) on Norways Arctic island of Svalbard. Experts said that it was low sea-ice levels _ (cause) by climate change _ killed the polar bear. Scientists mention that the “man-made” greenhouse effect is a big problem. _ rise in temperature has led to an increase in extreme weather and natural disasters worldwide, _ (cause) serious damage and costing human lives.whichwas foundcausedthatThecausingThe global climates further warming resulted _the continued greenhouse gas emissions _ (require) the attention of people all over the world. Governments need to make policies and take measures _(reduce) greenhouse gas emissions. As individuals, we should also reduce our “carbon footprint” by restricting the amount of carbon dioxide our _ (lifestyle) produce. fromrequiresto reducelifestylesThere is little doubt that Earth is getting warmer and warmer.句意：毫无疑问，地球正变得越来越暖和。There is little / no doubt that. 毫无疑问，that 引导的是同位语从句。其中there 不能换成it。例句：1. There is no boubt that to realize a goal, one needs not only knowledge but also good personalities.2. There is little doubt that students should learn something about how computers work.随堂练：1. At present, there is little doubt _ the short message plays an increasi