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课件网) Lead-in step1 What happened to the earth the temperature is rising species are dying flood drought drought fire losing trees islands slowly disappear Reading:Climate Change Require The World’s Attention Pre-reading step2 1.What is the graph about The graph shows the change in the Global Surface Temperature between 1920 and 2016. Global warming Pre-reading X-axes Y-axes climate change While-reading step3 Para 1 risingrirrrshenrising生命singriri rising sea levels warming ocean and atmosphere atmosphere melting ice We have known about for decedes climate change There There is little doubt that Earth is getting warmer and warmer along with These provide evidence of a dramatic change in the global climite Let’s recall the detail about the climate change. 复习 drought flood global warming animals dying fire Glaciers melting let’s do a quize drought flood global warming animals dying fire Glaciers melting 2.What can you see in the photo What remained of the polar bear (北极熊) was skin and bones and it starved to death. Do you think it is related to the global temperature rise (Global warming) Let’s read the paragraph 2 . Para 2 a dead polar bear Read Para 1-2 and answer the questions: Find the cause and effect that can show how climate change has influenced the polar bear’s life climate change low sea-ice levels bears could not hunt had to travel greater distances to find food starved to death its dead body found Read Para 3 and find information about “greenhouse effect”. _____ greenhouse effect _____ greenhouse effect causing Earth’s surface temperature _____ if too much heat energy is _____ keeping Earth’s climate _____ and _____ natural man-made warm habitable to rise quickly trapped Para 3 Para 3 “natural” green house effect diagram The heat from the sun sun ehters the atmosphere warms Earth’s surface as short wave radiation longer wave lengths The heat is released back into space at green house gas such as methane and carbon dioxide,trap some of the heat,keeping Earth’s climate warm and habitable How does the Earth maintain its temperature Without these process,Earth could not sustain life. “man-made” green house effect diagram Para 3 When people produce huge amounts of extra greenhouse gas by burning fossil fuels more heat energy is trapped in the atmosphere causes Earth’s surface temperature to rise quickly. has now become a big problem The consequences of the rise in temperature extreme weather and natural disasters not only but also costing human lives Para 4 Climate scientists have warned that if we do not take appropriate actions, this warming trend will probably continue and there will be a higher price to pay. In fact news reports are frequently broadcast about extreme rainstorms and heatwaves causing deaths and economic losses. causing serious damage The solutions to reducing greenhouse gas emissions Para 5 Government Governments need to consider making polic ... ...
