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

Unit3 Environmental Protection Reading and thinking We have known about climate change for decades. There is little doubt that Earth is getting warmer and warmer (see the graph). A warming ocean and atmosphere along with melting ice and rising sea levels provide evidence of a dramatic change in the global climate. 气候变化我们已经知道了几十年。毫无疑问，地球正变得越来越暖(见图表)。不断变暖的海洋和大气，以及融化的冰和上升的海平面为全球气候急剧变化提供了证据。 Climate Change Requires The World’s Attention Climate Change Requires The World’s Attention Read the text and answer the questions. 1 . What happened to the polar bear in the photo? Why did the writer write about it? The polar bear in the photo died of starvation. The writer wrote about it because it showed one of the effects of rising temperatures due to climate change. 2013年，在挪威的北极斯瓦尔巴特岛上发现了一只死亡的北极熊的新闻照片，这让很多人感到震惊。根据发现其尸体的科学家的说法，这只北极熊只剩下了“皮肤和骨头”。一位研究北极熊多年的专家说，从它尸体的位置看，这只熊似乎是饿死的。专家称，气候变化导致的海冰水位下降意味着北极熊不能像以前那样捕猎海豹，所以它必须走更远的距离来寻找食物。这个令人担忧的案例表明，气温的上升对地球生态产生了怎样的影响。 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. Climate Change Requires The World’s Attention Read the text and answer the questions. 2. Why is the "natural" greenhouse effect important and necessary? The “natural” greenhouse effect is important because it warms the Earth’s surface and keeps it habitable. 3. What are the consequences of high greenhouse gas emissions? High greenhouse gas emissions lead to more heat energy being