新视野大学英语视听说 Unit 4-4

Task 3: Global Climate Change
Today, scientists have found that the greenhouse gases in the lower atmosphere have changed the global climate. These gases are largely due to human activities, such as the burning up of gas, coal and oil, and the destruction of forests. It is estimated that the average surface temperature of the earth will rise by 1.5-3.5℃ by 2100. This rate of warming is significant. The oceans will heat up and glaciers¹ will melt. As a result, the global average sea level is expected to rise by 15-95 cm by 2100. In that case all coastal² cities will be at risk as a result of flooding and storm surges. Also, around the world weather events such as storms and floods will become more frequent and intense. Clearly, global climate change is becoming a great threat to our environment. So we must take effective measures to produce fewer greenhouse gases that cause it.
Global climate is causes by the greenhouse gases in the lower atmosphere. These gases are largely due to the burning up of gas, coal and oil, and the destruction of forests. Scientists estimate that, by 2100, the average surface temperature of the earth will rise by 1.5-3.5℃ and global average sea level will rise by 15-95 cm. All coastal cities will be at risk as a result of flooding and storm surges. Clearly, global climate change is becoming a great threat to our environment.
 

1 glaciers   

冰河，冰川( glacier的名词复数 )

参考例句：

• Glaciers gouged out valleys from the hills. 冰川把丘陵地带冲出一条条山谷。
• It has ice and snow glaciers, rainforests and beautiful mountains. 既有冰川，又有雨林和秀丽的山峰。 来自英语晨读30分（高一）

2 coastal   

adj.海岸的，沿海的，沿岸的

参考例句：

• The ocean waves are slowly eating away the coastal rocks.大海的波浪慢慢地侵蚀着岸边的岩石。
• This country will fortify the coastal areas.该国将加强沿海地区的防御。