Unit 1 Nature in the balance 1. Have a good understanding of the text “The Amazon rainforest: a natural treasure” with the reading strategy: drawing charts about the text； 2. Retell the text in your own words； 3. Write something about “The Amazon rainforest: a natural treasure” with about 150 words, using phrases and sentence patterns that have been learnt. Ⅰ. Choose the best answers to the following questions according to the text. ( ) 1. What does the word “maintain” mean in the sentence “As the largest rainforest in the world, it plays a significant role in maintaining the fine balance of the Earth's ecosystem.”？ A. Remain. B. Contain. C. Keep. D. Insist. ( ) 2. Why is the Amazon rainforest very important to the Earth A. It is the largest rainforest in the world. B. It helps maintain the fine balance of the Earth's ecosystem. C. It is home to a variety of plants and animals. D. It breathes life into the planet by fixing carbon. ( ) 3. What helps break down a jaguar's body after its death A. A large number of microorganisms. B. The nutrients of the earth. C. A variety of insects. D. A kind of frog. ( ) 4. Which is one major danger to species in the Amazon rainforest A. Agriculture. B. Cattle farming. C. Human activities. D. Carbon and oxygen. ( ) 5. What is the text mainly about A. The significance of agriculture. B. The value of the Amazon rainforest. C. The way to enjoy the natural treasure. D. The remark on the Amazon rainforest. Ⅱ. Answer the following questions according to the text. 1. What do you suppose the text is about according to the title 2. Why is the Amazon rainforest known to have the richest biodiversity in the world 3. How do you understand the “lungs of the planet”？ 1. Why is the word “treasure” used in the title 2. What is the purpose of using “Welcome to the jungle” in the beginning 3. What function of the Amazon rainforest is the most important in your mind Why 1. Can you think of some ways to maintain the fine balance of the Earth's ecosystem 2. If we change the adjectives “significant” and “only” in the sentence “While a significant number of jaguars survive here, they are only one element of this forest's food chain.”， is the meaning clearly conveyed Activity 4: Consolidate and feed back. Ⅰ. 根据中文提示，从文中找出相应表达。 1. 自然奇观 2. 根据……判断 3. 在……中起重要作用 4. 维持地球生态系统的微妙平衡 5. 在长度上 6. 由……组成 7. 种类繁多到难以置信的野生动物 8. 在底部 9. 高耸的古老阔叶树 10. 处于濒临灭绝的危险中 Ⅱ. 单句语境填词，注意词的词性和词形。 1. They raised chickens for eggs, pigs and c_____ for meat, and cows for milk and cream, from which Grandma made butter and cheese. 2. If we don't stop c_____ change, many animals and plants in the world will be gone. 3. Scientists say the c_____ of South America and Africa separated millions of years ago. 4. The product is sold both at home and o_____． 5. How many species do you believe will be threatened with e_____ when the ... ...
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