(
课件网) Unit 4 Our World Section C Topic 1 What’s the strongest animal on the farm Learning objects What will do today Learn some new words and expressions. Know something about the rainforests. Talk about how to protect rainforests, and write a proposal. Free talk What do you know about rainforests Guess Guessing the answer to following questions. What are rainforests How many animals are living in rainforests Where do animals live in rainforests What can we get from rainforests Why are rainforests important to us Look and guess Look at the pictures and check which questions the passage can answer. Skimming Read paragraph 1 and choose the best answer. What’s the main idea(主旨大意) of paragraph 1 A. Thousands of plants and animals live in rainforests. B. The features ( 特征 ) of rainforests. C. Rainforests are thick forests in the hot parts of the world. Skimming Read paragraph 2 and choose the best answer. 2. What’s the main idea(主旨大意) of paragraph 2 A. Rainforests can give us many useful things. B. We should protect rainforests. C. Rainforests are very important to us. Read and mark Read Paragraph 1and mark T or F Rainforests are in the cold parts of the world ( ) The ground in rainforests is always wet . ( ) Rainforests cover 8% of the earth’s surface. ( ) Rainforests give a home to many beautiful plants and animals ( ) F F T T hot 6% Read and fill Read Paragraph 2 and fill in the blanks. Why are rainforests important to us 1. The plants make the air _____ and _____ 4. Rainforests help to keep the beauty of _____. 2. They help to _____ the water and keep the water____ 3. They help to control the _____ 5. They give us _____ , _____, fruit, _____ and so on . fresher cleaner hold cycling climate nature wood food medicine Read and find Read the passage and find out the key phrases. 成千上万： 对某人来说很重要: 地球之肺： 使空气更清新干净： 调节气候： 促进水循环： 保持自然之美： 在……中起重要作用 ： 灭绝： 越来越小： thousands of keep the water cycling play an important part in die out smaller and smaller be important to sb. the lungs of the earth make the air fresher and cleaner control the climate keep the beauty of nature Key points _____ 1.Rainforests cover 6% of the earth’s surface. cover: v. 覆盖 雪覆盖了大地。 Snow covered the ground. cover …with… 用…覆盖… 他们用纸遮住了脸。 They covered their faces with paper. 覆盖…. 6%(six percent) Key points 2.They play an important part in controlling the climate. play an important part ( in sth.) 在……中起重要作用； E.g.: 1.小明 积极参加班级活动。 Xiao Ming_____ class activities. plays an important part in 2.他在跑男中发挥重要作用。 He _____ Running Man. plays an important part in Key points 3. But now, rainforests are becoming smaller and smaller, so we should protect them. China is becoming _____ . stronger and stronger 比较级+and+比较级：越来越….. 1.中国 正 变 得 越 来 越 强。 2.天气 变 得 越 来 越 冷。 The weather is becoming ... ...
