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一、导读： Discuss two questions: 1. What is the message of the song on Page 1? 2. What can you do to help protect the environment? 二、导学： Teaching procedures: Step 1 Lead-in Think about these questions: 1. What will be talked about in the text according to the title and the picture?_____________ 2. What could be the genre of the article?_________________________________________ Step 2 Pre-reading Complete part A1 on page 4 with the main idea of each paragraph. Para. 1: ___________________________________________________________________ Para. 2: ___________________________________________________________________ Para. 3: ___________________________________________________________________ Para. 4: ___________________________________________________________________ Para 5: ___________________________________________________________________ Step 3 While-reading 1. Read the documentary script again carefully and fill in the blanks with the figures. The Amazon rainforest l _____ countries and one overseas region l Around_____ km2 of forest l About _____km in length l More than _____plant species l More than_____ bird species l Over _____ species of mammals l Over _____ of all the Earth’s oxygen produced l About _____of the rainforest lost over the past 50 years 2. Read Paragraph 3 and finish the diagram. 
Step 4 Post-reading After reading the passage, fill in the following blanks. Step 5 Critical reading Discuss the following question in pairs. 1. What makes the Amazon rainforest a natural treasure according to the script? 2. What is your answer to the question at the end of the script? Can we afford to damage the “lungs of the plant”? 三、达标导练 I. 课文原句填空 1. _________ the largest rainforest in the world, it plays a significant role in maintaining the fine balance of the Earth's ecosystem. 2. With _________ area of around 6 million⑤ square kilometres, the Amazon rainforest is more than half the size of China. 3. _________ its journey from the mountains to the ocean, the river supports many different ecosystems. 4. They give this area the richest biodiversity on the Earth: one _________ ten known species in the world can be found here. 5. _________ the 390,000 plant species known to us, more than 40,000 can be found in the Amazon. 6. The forest's different levels support an _________ (believe) variety of wildlife. 7. Above that _________ the mass of leaf litter on the dark forest floor. 8. _________ a significant number of jaguars survive here，they are only one element of this forest's food chain. 9. Yet there is one major danger to these _________ (replace) plants and animals: us. 10. Over the past 50 years, about 17 per cent of the rainforest _________(appear) due to human activities such as agriculture and cattle34(○) farming. II. 课文原句翻译 1. 欢迎来到丛林，这是一片绿色的海洋，处处可闻各种动物的声音。 Welcome to the jungle, a huge sea of green _________ _________ the sounds of animals. 2. 作为世界上最大的雨林，它在维持地球生态系统的微妙平衡方面发挥着重要作用。 As the largest rainforest in the world, it _________ _________ _________ _________ _________ _________ the fine balance of the Earth’s ecosystem. 3. 亚马逊雨林得名于亚马逊河，亚马逊河长接近6400千米。 The Amazon river, _________ _________ the rainforest gets its name, _________ _________ _________ 6,400 kilometers _________ _________—_________ 100 kilometers longer than the Yangtze River. . 4. 这些睡莲叶片大到可以躺在上面。 These water lilies are big enough to _________ _________ _________. 5. 雨林的不同层次使种类多到难以置信的野生动植物得以生存。 The forest’s different levels support _________ _________ _________ _________ wildlife. 6. 再往上一层由低矮的阔叶植物组成。 The next level _________ _________ _________ __________ shorter plants with large leaves. 7. 雨林的每一层都形成了自己的小世界，成为各种生物的家园。 Each level of the forest forms its own little world, _________ _________ different kinds of _________things. 8. 相应地，这些青蛙以昆虫为食，而昆虫则吃树叶和水果。 These frogs, _________ _________ , _________ _________ insects which eat leaves and fruit. 9. 美洲豹死后，一小支微生物军队会助力其尸体的分解，让营养素重回土壤之中。 When a jaguar dies, _________ _________ _________ _________ microorganisms helps _________ _________ its body and return the nutrients to the earth. 10. 亚马逊雨林通过固定碳，并产生超过全球总量20%的氧气，使得地球生生不息。 The Amazon rainforest _________ the planet by fixing carbon and producing over 20 per cent of all the Earth’s oxygen. 11. 在过去的50年里，由于农耕和养牛等人类活动，大约17%的雨林已经消失了。 Over the past 50 years, about 17 per cent of the rainforest has disappeared _________ _________ _________ _________ such as agriculture and cattle farming. 12. 随着人类活动的影响继续扩大，濒危物种的名单变得更长了。这就留给我们一个问题： 我们是否能承担得起损害“地球之肺”的后果吗？ __________ the impact of human activities _________ _________ grow and the list of species _________ _________ _________ _________becomes longer, we _________ _________ _________ a question: can we _________ _________ damage the “lungs of the planet”? 四、课后巩固训练：(40分钟) 背诵Reading 限时练习 五、反思感悟： 1. 了解保护环境的法律法规 2. 如何通过个人努力来保护环境？
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