Unit 5 The power of nature概括大意Soot in areas with snow and ice may play all important role in climate change
Also，if snow and ice covered areas begin melting，the warming effect increases，as the soot becomes more concentrated on the snow surface
“This provides a positive feedback
As glaciers and ice sheets melt ，they tend to get even dirtier ，” said Dr
James Hansen，researcher at NASA’s Goddard Institute for Space Studies，New York
此段落的大意是：_______________________________________________________ Explanation of Increased Warming Effect Caused by Soot
1画面描述 An elderly man is holding his umbrella to protect his beloved pet dog from the heavy rain，while he himself is walking in the rain
漫画欣赏寓意理解 2In our society，many elderly folks are living in loneliness
So their pet is the only family member the
