Unit 3 Environmental Protection 导入课件-2023-2024学年高中英语人教版（2019）选择性必修第三册

By Yushen xx老师 Mia 选必三 高二英语 Lead-in 导入 选必三U3 ENVIRONMENTAL PROTECTION ENVIRONMENTAL PROTECTION 选必三 U3 ENVIRONMENTAL PROTECTION By Yushen By Yushen By Yushen By Yushen 1. What can you see in the picture? 2.What is the cause of this phenomenon? A large piece of ice breaking off a large glacier（冰川）. Global warming Open Page(P25) By Yushen 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。 --甘地 Open Page(P25) By Yushen Climate Change (P26) By Yushen The global surface temperature rose about 1 ℃ from 1920 to 2016. The earth is becoming warmer and warmer. Climate Change (P26) 反常现象 基本周期 By Yushen By Yushen Chart Types (P26) bar chart 柱状图 pie chart 饼状图 line chart 线状图 flow chart 流程图 By Yushen By Yushen What consequences may global warming bring about? Climate Change (P26) By Yushen In 2013, a lot of people were shocked by a news photo of a dead polar bear that was found on Norway's Arctic island of Svalbard. According to the scientists who found its dead body, all that remained of the polar bear was "skin and bones". An expert who has studied polar bears for many years said that from the position of its dead body, the bear appeared to have starved and died. Experts claimed that low sea-ice levels caused by climate change meant the bear could not hunt seals as before, so it had to travel greater distances in order to find food. This alarming case showed how the increase in temperature had an impact on Earth's ecology. Para2 Climate Change (P26) when, where, what, how, why By Yushen What information can you get form this picture? The bridge is in smog（烟雾） in London. The chimneys(烟囱) are in a power station. They all look very polluted.！！！ the burning coal（煤炭) Air Pollution (P30) By Yushen 1. The expression “smog” originated in Britain and means a combination of “smoke” and “fog”. ___ 2. Smog became a severe problem in Britain because people at that time burnt