(
课件网) UNIT 3 Environmental Protection 1. What can you see in the picture 2.What is the cause of this phenomenon Lead-in A large piece of ice is breaking off a large glacier or ice sheet. Global warming Think and talk What other consequences may global warming bring about Think and talk What other consequences may global warming bring about the rise of sea level dying animals coastal cities submerged（淹没） Think and talk What other consequences may global warming bring about natural disasters extreme weather economic losses drought Earth provides enough to satisfy every man’s needs, but not every man’s greed. — Mohandas K. Gandhi 地球能满足人类的需要，但满足不了人类的贪婪。 P25 1. What happened to the polar bear 2. What is the graph about 3. What information can you get from it The polar bear may died for lacking food. CLIMATE CHANGE REQUIRES THE WORLD’S ATTENTION P26 shows how much the temperature has risen above what it would usually be at a base level. Temperature Anomaly（气温反常现象） 1. What's the type of this text A. Essay 论文 B. Biography 传记 C. Exposition. 说明文 D. Argumentation. 议论文 2. What's its purpose To inform readers to deal with climate change To persuade readers to focus on limited resources 3. In which part of a newspaper or magazine may we find this passage A. Entertainment B. Economy C. Education D. Environment Fast-reading Read for structure -Expository Essay Find out the topic sentence of each paragraph. （5min） problem cause consequence solutions problem cause consequence Find out the topic sentence of each paragraph. （5min） solutions cause consequence Para 1 Para 2 The evidence of dramatic climate change that had an impact on Earth’s ecology 瘦骨嶙峋 problem Find out the topic sentence of each paragraph. （5min） solutions consequence problem Para 3 The cause of the increase in the global average surface temperature cause Find out the topic sentence of each paragraph. （5min） cause problem Para 4 Para 5 The consequences of the rise in temperature The solutions to reducing greenhouse gas emissions solutions consequence problem-solution pattern Reading for the details (Para1):A problem What Evidence a warming ocean & atmosphere melting ice rising sea level Climate’s is getting warmer and warmer climate change starvation longer food-seeking travel lack of food low sea-ice level The following reasons account for the death of the polar bear, with one influencing another. Read paragraph 2 and put them in a correct logical order. What is the root cause Para 2： Cause and effect lead to； cause; account for 2.Why is the “natural” greenhouse effect important and necessary 3.What are the consequences of high greenhouse gas emissions (Para3): The causes Greenhouse effect _____ greenhouse effect _____ greenhouse effect Function(作用): “Natural” “Man-made” A big problem: keeping Earth's climate warm and habitable causing Earth’s surface temperature to r ... ...
