2. Unit 4 Our World Topic 1 What’s the strongest animal on the farm ? Section C By Miss Lee

3. Look at the pictures: Do you know what they are?

4. Learning aims: 1. Learn some new words and new phrases: cover, thousands of, play an important role in (doing) sth. 2. Learn some useful sentences: Rainforests are very important to us. / Without rainforests, many beautiful plants and animals would die out…… 3. Go on learning the comparative and superlative degrees of adjectives; [ Teaching key point ] 4. Describe natural resources and realize the importance of environment protection. [ Teaching difficult point ]

5. Look at the pictures and check which questions the passage can answer. Then check your guess.

6. 1.What are rainforests? 2.How many animals are living in rainforests? 3.Where do animals live in rainforests? 4.What can we get from rainforests? 5.Why are rainforests important to us?

7. Watch the flash of 1a ， know something about rainforests. You should underline the key words, phrases and sentences. 1a

8. Learning aims: 1. Learn some new words and phrases: cover, thousands of, play an important part in…… 2. Learn some useful sentences: Rainforests are very important to us. Without rainforests, many beautiful plants and animals would die out…… 3. Go on learning the comparative and superlative degrees of adjectives; (Important point) 4. Describe natural resources and realize the importance of environment protection. (Difficult point) rainforests in the world Rainforests cover( = spread over ) 6% of the earth ’ s surface.

9. Thousands and thousands of animals live in rainforests. Many of them live in the trees over 30 meters from the ground.

10. 1. thousands of 成千上万的（数以千计的） 类似的表达方式： hundreds of 成百上千的（数以百计的） millions of 数以百万计的 注意： ㈠表达具体数字时不可使用 s 形式。 如：两百本书 two hundred books ㈡用复数形式时常跟 of 如：数百本书 hundreds of books Language points

11. 2. They play an important part in controlling the climate. 注： play an important part in 在...... 中扮演重要的角色 Friends play an important part in our life. 翻译：朋友在我们的生活中扮演着重要的角色.

12. 3.But now, rainforests are becoming smaller and smaller… 1. smaller and smaller 越来越小 比较级 +and+ 比较级 越来越 … 如： The weather is colder and colder 2. 注意：多音节形容词在表示 “ 越来越 …” 时，常用 结构是： more and more + 形容词原形 如：越来越漂亮 more and more beautiful

13. Listen to 1a and complete the table. Then check with your partner. Feature of rainforests 1.in the ______ parts of the world 2._______ ground and always ____ and ____ in them 3.cover ____ of the earth’s _______ 4.give a home to many beautiful ______ and ________ Importance of rainforests 1.make the air _______ and ________ 2._____ the water and keep the water______ 3. control the ________ 4. keep the beauty of ________ 5. give us ______, ______, fruit, ________ and so on hot wet darkhot 6% surface plants animals freshercleaner holdcycling climate nature woodfood medicine 1b

14. Design of the passage Rainforests Features of rainforests Importance of rainforests Allow students to answer How to protect the rainforests ?

15. 1c Read 1a again and answer the questions. 1.What does the word “cover” mean in Paragraph 1 ? 2. Why are rainforests the lungs of the earth ? It means “ 覆盖 ”. Because the plants in the forests help to make the air fresher and cleaner.

16. 1c Read again and answer the questions. 3. Why should we protect rainforests well ? 4. Can you guess what the next part of the passage will talk about ? Because they help to hold the water and keep the water cycling. They play an important part in controlling the climate. Yes. The next part may talk about what we should do to protect rainforests.

17. Discuss the pictures in groups about how to protect rainforests. show and tell people about …

18. do anything we can ， such as …

19. ask people not to …

20. ask people not to cut …

21. 1. Learn to describe the situation of rainforests and the importance to the earth. 2. Talk about how to protect rainforests. 3. useful phrases: thousands of control the climate play an important part in (doing) sth. smaller and smaller

22. Feedback & Consolidation 1. There are about ____ students in our school. A. three thousand B.three thousands C.three thousand of 2. As summer is coming,the day is becoming ___. A.long and long B. longer and longer C.colder and colder 3. We should plant more trees because they play an important ___ in protecting the environment. A.part B.game C.tape D. sport Are you right ?

23. Homework Write a short passage about how to protect rainforests. You can write like this : Rainforests are very important to us. It is necessary for us to protect them very well. First, we should…