Unit 4 Our World Topic 1 Plants and animals are important to us. Section C,rainforest （热带）雨林,cover / 覆盖,6%=six percent 百分之,dark 暗的,earth 地球,forest 森林,surface表面,wet 湿的,wood n. 木头，木材；,rubber n.橡胶,earth,地球 ;,泥土U,There are some earth on earth.,forest n.森林 rainforest n.(热带）雨林 6=six percent earth n.地球 泥土 surface n.表面 dark adj.黑暗的 ground n. 地面 lung n.肺 control v. 控制 climate n.气候,wood n.木头，木材 rubber n. 橡胶 protect v.保护 set up 建立 成立 spread over 覆盖 form v.形成 own adj.自己的,1a,Look, listen and answer.,What does the passage mainly talk about?,Look, listen and answer.,1a,What does the passage mainly talk about ?,1a,Look, listen and answer.,What does the passage mainly talk about?,The rainforests.,Read 1a silently and complete the following tasks.,Because the plants in the rainforests help to make the air fresher. They also help to control the climate.,Rainforests are very important to us.,1.What does “cover” mean in this passage? A. set up B. spread over C. have D. form 2.We cant get the answer to Question _ from the passage. A. What are in rainforests? B. Why are rainforests important to us? C. What can we get from rainforests? D. What should we do to protect rainforests? 3. Why are rainforests “the lungs of the earth”? 4. Whats the main idea of the passage?,B. spread over,D. What should we do to protect rainforests?,1b,Key points,Rainforests cover 6% of the earths surface.,six percent,热带雨林覆盖了地球表面的6.,Thousands and thousands of animals live in rainforests.,成千上万的,成百上千的,hundreds of,But now rainforests are becoming smaller and smaller.,越来越小,“形容词比较级+and+形容词比较级” 或“more and more + 多音节形容词原级”表示“越来越”。,The weather gets colder and colder.,2)我的家乡越来越美丽。,My hometown is more and more beautiful.,e.g. 1)天气变得越来越冷了。,Read and remember.,6=six percent thousands of 成千上万的 over 30 meters from the ground 离地面30多米 Smaller and smaller 越来越小,Listen and repeat,Read 1a again and write down the importance of rainforests.,make the air fresher control the climate give us wood, rubber, fruit, medicine and so on make the water cleaner prevent soil erosion(防止水土流失） ,Report .,The rainforest are very important to us. They help to make the air fresher. They also help to control the climate .They give us wood, rubber, fruit, medicine and so on. And they can make the water cleaner and prevent soil erosion. Thats not all. We need them so much. So we should protect them.,Why do you think water is very important?,Read 2a silently and answer.,Because all the plants, animals and humans need water.,Most plants need lots of water. Water is necessary for all plants.,对来说是必要的,All animals need plenty of water. They cant live at all without water.,根本不能 完全不能,没有水,Humans need water to drink, to cook and to clean. In fact, water makes up the largest part of the human body.,人类,事实上,组成,Water covers most parts of the earth. It is in lakes, rivers, seas and oceans. It is important to all living things. We must save every drop of water.,节约每一滴水,important,plants,animals,Without,Humans,clean,2b,Complete the passage according to 2a.,to,Water is _to all living things.All _ and _ need water. _ also need water to drink, to cook and _ _ ._ water, there could be no life on earth. So we must save water.,be necessary for 对来说，很必要 be important to 对来说，很重要 in fact 实际上，事实上 make up 构成，组成 plenty of = lots of 大量的，许多的 notat all 一点也不 on earth 在地球上，在世界上,Key points,Listen and understand.,2a,Most plants need lots of water. Water is necessary for all plants.,All animals need plenty of water. They cant live at all without water,Humans need water to drink, to cook and to clean. In fact, water makes up the largest part of the human body.,Listen and repeat.,Water covers most parts of the earth. It is in lakes, rivers, seas and oceans. It is important to all living things. We must save every drop of water.,Number the following sentences to form a passage about how to plant a tree.,Spring is warm. Its the best season to plant trees. When you plant a tree:,3,Work alone,First, dig a hole in the earth, and make sure the hole is deep enough for a tree.,Step by step,确信,足够深,Then, put the tree in the hole, and keep it straight.,Step by step,保持直立,Next, fill the hole with earth, then make the earth hard with your feet.,Step by step,用土填坑,Finally, water the tree. If everything is OK, the tree will grow new leaves a few days later.,Step by step,给树浇水,Retell how to plant trees according to the pictures.,Task,Retell how to plant trees and act it out.,Summary,The earth is our only home .We should Protect it .,Water is important to us .We should save every drop of water.,The earth is our only home .We should Protect it .,Water is important to us .We should save every drop of water.,Thanks for listening! Goodbye!,Read the passage and fill the blank