Unit 2 The environment 【美文阅读】 人类的贪婪是环境恶化的主要原因。然而，除此之外还有其他因素吗？ Is our environment being destroyed by greed The environment has been suffering from all forms of damage；especially in recent years global warming seems to be the main problem.Many times，environmental worsening，in the form of running out of natural resources，and air，water and land pollution，is caused by the irresponsible behavior of humans.Nations，like the United States，set themselves above the ruin and damage of the environment.However，it will be unfair to state that environmental worsening is brought about only by greed.Other factors，such as the inability of some developing countries to find other choices of survival，also play a part in contributing to environmental problem. The state of the envi ronment has been the concern of scientists in recent years.In the case of global warming，greed，in the sense of economic benefits of a country，actually contributes to the ruin of the environment.This is seen in the case of the United States' refusal to carry out its agreement to the Kyoto Protocol(京都议定书)，where countries come together and help deal with the increasing emission of greenhouse gases.If the US agreed to it，it would mean that it has to cut back on its Gross Domestic Product(GDP)growth. Another reason for environmental worsening is that some developing countries have few or no other choices to making money for t heir survival.For example，slash and burn(刀耕火种)is the cheapest way for poor farmers even though it creates a serious environmental problem.Should they not practice slash and burn，they may not be able to clear the land in time for agricultural activities to support themselves and their family members.For them，environment concerns are secondary as compared to their survival. Therefore，to save the environment，everyone，be it young or old，rich or poor，should play a part in protecting the earth，as a collective effort definitely makes a big difference. 【诱思导学】 1．What are the form s of environmental worsening according to the passage _____ 2．Why does America refuse the Kyoto Protocol _____ 3．What causes the worsening of the environment _____ 【答案】 1.①Globa l warming ②Running out of natural resources ③Air，water and land pollution 2．Because it will damage America's economic development. or：Because it means the US will have to cut back on its GDP growth. 3．Human bein g's greed and their inability to find other choices of survival. Period ⅠPreviewing (教师用书独具) ●教学目标 本课时主要是通过学生对学案所给出的内容 的学习，了解本课文中所出现的词汇，初步了解课文以及相关的背景知识，对下一堂课中课文的全面理解起到一个铺垫作用。 ●教学地位 本文是一篇辩论，需要学生在预习过程中初步了解辩论的基本方式、流程和目的，并了解当前世界经济的发展对环境造成的影响。 (教师用书独具) ●新课导入建议 建议教师以课本第21页的图片导入新课，要求学生分组讨论四幅图片，并提出问题： What can you see fr om the pictures？Try to des ... ...
