牛津譯林版高中英語(yǔ)必修五unit2theenvironment第4課時(shí)教案-wenkub
2022-11-30 22:01:49 本頁(yè)面
【正文】 and around the river. The second project includes nature reserves for whiteflag dolphins, one of the rarest animals in the world. The number of whiteflag dolphins in China has dropped because of pollution in the Yangtze River. The whiteflag dolphin was last seen several years ago, though scientists are still hopeful that the animal has survived. We still have a long way to go to solve all the problems in regard to the Yangtze River. However, people have finally realized that it is their responsibility to protect this great river. Because of this, the situation on the Yangtze River is improving. The efforts of the Chinese government and people to protect this muchloved river will be appreciated for years to e. Project 2: Climate change and a lowcarbon life There is no doubt that the world climate has been changing in recent years. Many people blame this change on gases such as carbon dioxide. Animals and humans produce carbon dioxide when they breathe. However, many other human activities also let off carbon gases. Anytime something is burnt, carbon is put into the atmosphere. Cars and other vehicles burn petrol in their engines, and electrical power plants most often burn fuels such as coal and oil in order to produce electricity. Therefore, the more petrol and electricity we consume, the more carbon we are letting off. One thing we can all do to help solve this problem is to walk or use a bicycle when possible. Although we produce carbon when we breathe, the carbon we produce is much less than that produced by a car. Of course, there are times when we need to travel long distances. In this case, public transport such as buses and the underground are always much better choices than a private car or a taxi. If you must drive a car, it is never good to travel alone— you should try to find other people to travel with you. At home, you shou
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