清华版五年级下册UNIT 3THE ENVIRONMENT AND US-Lesson 17-ppt课件-(含教案)--(编号：f02c4).zip

01 What can you hear? 02 What do you know about water? Salt water is water from and . Fresh water is water from and . seasoceans riverslakes salt water fresh water Water is important. People and animals need water to live. Plants need water to grow. waste water make water dirty keep water running water plants throw trash pour dirty water riverslakes Bad Behaviors waste water make water dirty keep water running water plants throw trash pour dirty water Bad Behaviors Listen and read. riverslakes waste water make water dirty keep water running water plants throw trash pour dirty water Bad Behaviors Listen and read. riverslakes waste water make water dirty keep water running water plants throw trash pour dirty water Bad Behaviors Listen and read. riverslakes waste water make water dirty keep water running water plants throw trash pour dirty water Bad Behaviors Listen and read. riverslakes waste water make water dirty keep water running water plants throw trash pour dirty water Bad Behaviors Listen and read. riverslakes save water Lets save water! Lets keep water clean! keep water clean Turn off the tap while washing. Water the flowers after doing the dishes. Dont throw trash into rivers and lakes. Dont pour dirty water into rivers and lakes. 1. Listen to the tape as usual. Write five ideas to save water. 2. 1.学生能够听、说、认读单词及短语：waste, dirty, fresh water and salt water. 2.学生能够区分 fresh water 和 salt water。 3.学生能够认识到水的重要性，通过思考找到节约用水的方法。 教学目标教学目标 4.提升学生 skipping, scanning 等阅读技巧。 教学重点教学重点 1.Fresh water and salt water. 2.The importance of water. 3.Realize that people are wasting water. 4.Find out how to save water. 教学难点教学难点1.The meaning of the word: waste. 2.Understand the third paragraph and tell their own ideas. 3.Express their points of saving water. 教学准备教学准备 Water, ground, salt, T-shirt, PPT. 教学方法教学方法 导入法，TPR 教学法，任务型教学法。 教学过程教学过程 . Warm-up 1. Greet with the students. 2.Watch a movie about the ocean and sing the song: Trouble is a friend. . Lead in 1. Listen to the tape and let the students get: What does this passage talk about? 2. Students tell what they know about water. They can talk about the colors, the tastes and anything else about water until someone says: I/We drink water . Presentation: 1. Show them two bottles of water and some salt. Put the salt in one bottle of water, shake. Ask the students if they would like to drink and encourage them to tell the reasons. 2. Write fresh water and salt water on the blackboard. Read the two words for several times. Try to spell those two words as in phonics. 3.Two minutes for the students to read the 1st paragraph and find the answers of those questions: 1) What is salt water? 2) What is fresh water? Students stand up and answer the questions. 4. Show the students a picture of the fresh water and the salt water. Students guess the fresh water according to the percentage. 5. Show them the picture to show that: There is not much fresh water we can use on the Earth. 6. Students read the 1st paragraph together. 7. Students take notes in their books: circle the words and underline the phrases. 8. Ask and answer questions: Who need water? When do you use water? Students try to express their ideas about the importance of water and get the conclusion: Water is important. 9. Have two students to stand up and read this paragraph. Then the whole class read it together. 10. Student read paragraph 3 quickly and find the answers to the questions: - What are the two ways people waste water? - How do people make water dirty? Students talk more about those two bad behaviors. 11. Learn the two words: waste and dirty waste: watch the video of wasting water. dirty: do the actions. 12. Read the 3rd paragraph as following to the tape and take notes as usual. 13. Students think more about water. Summarize: Lets save water! Lets keep water clean! . Consolidation Think about: Two minutes for the students to think about how to save water. 1) They are supposed to tell their ideas loudly. 2) Get a conclusion about how to save water. . Summary 1. Look at the blackboard and try to say something about water. 2. Remind the students to protect water. . Homework 1. Finish the listening task as usual. 2. Write five points to save water. 板书设计板书设计 Lesson 17 Water Water is important. Lets keep the water clean. water salt water salt water important bad behaviors people animals plants waste pollute kind