Green-plants-are-helpful-to-us-.ppt

1、,Can you tell me the importance of green plants?,Unit 9 Nature Lesson 2 Green plants are helpful to us,Learning objectives: Knowledge objectives （知识目标）： Ability objectives（能力目标）： Moral objectives（情感目标）：,Start a talk with somebody(开始与某人的谈话） Talk about plants and environmental problems in a simple way

2、 （学会简单谈论植物与环境问题） Recognize attributive clause starting with when/where/why （识别关系副词引导的定语从句）,Understand the short dialogues about green plants.（明白关于绿色植物的简单对话） Talk about green plants using how do you like./ whats your point（谈论绿色植物）,Make students realize the importance of green plants. （认识到绿色植物的重要性） Le

3、ad students to protect our environment.（保护环境）,Review the words and phrases:,污染,pollution,植物,绿色植物对我们有益处。,环境,我们应该保护环境免受污染。,保护,有帮助的,全球变暖,解决问题,他们可以帮助我们解决全球变暖的问题。,吸收,能量,树叶吸收阳光产生能量。,environment,protect,We must protect the environment from pollution.,plant,helpful,Green plants are helpful to us.,global war

4、ming,solve the problem,They can help us solve the problem of global warming.,absorb,energy,The leaves can absorb sunlight and produce energy.,Lets preview this lesson!,Task 1 Listen and answer,What are they talking about?,Shall we shoot the sun with an arrow? Why or why not? Do you know the usefulne

5、ss of the green plants? Why are the green plants helpful to us?,No, because most of the energy on the earth comes from the sun.,Yes, green plants can use the suns energy directly. The leaves can absorb sunlight and produce energy.,Listen to the detail:,Why are the green plants helpful to us?,Because

6、 green plants can,clean the air,protect the air around us from pollution,help us solve the problem of global warming,Task 2 Read, speak and practice,How to talk about environmental problems?,How to ask about others opinions?,Whats your point? Whats your opinion? How do you like? What do you think of

7、? How can we ? Have you heard the news? May I have a word with you? What are you trying to say? What are you trying to tell me?,I think In my opinion, I want to say Yes, I have. We should Wed better,answer,Listen and fill in the blanks,Dialogue 1 A: _weather, isnt it? B: Yes, what are you reading? A

8、: Im reading a book on _. Dialogue 2 A: Have you heard the news about the _? B: Yes, we should plant many trees and grow much grass to _ our land from _ a desert. Dialogue 3 A: The water _ is getting more and more serious. B: I agree with you . Its our duty to protect our _.,Lovely,nature,sandstorm,

9、protect,becoming,pollution,environment,Challenge yourself 1 Its your time to think about “how to talk about environmental problems”. Can you make a dialogue with your partner? What do you think of air pollution? Its getting more and more serious. How can we protect the air from pollution? We should

10、plant more trees and grass.,A: B: A: B: A: B: ,Task 3 Read and observe,Why do we plant trees? What do you think of the trees in the city?,The reason why we plant trees is to protect our land from becoming a desert.,The places where many trees grow are full of fresh air.,places,reason,I will never fo

11、rget the day when we planted trees together.,day,The men who/that protect the environment are great! Mary is the person who/that/whom you talked about. He has a friend whose father is a doctor. Basketball is a game which/that is liked by most boys. This is the pen which/that he bought yesterday. Do

12、you like the book whose color is yellow?,Attributive Clause(定语从句）,relative pronouns (关系代词）,relative adverbs (关系副词）,What do you think of the relationship between plants, environment and human beings?,Challenge yourself 2,Interview your classmates about his her opinions, and then act them out. (采访你的同学

13、关于植物、环境与人的关系并表演）,It is necessary and important for us to protect plants and environment.,How?,Task 4 Discussion,Everyone has the responsibility to protect environment, it is very simple. We should 1. not litter rubbish. 2. plant more trees, take good care of trees and flowers. 3. treasure resources(

14、资源), turn off the light when you leave a room. 4. walk or ride a bike instead of taking a bus or a taxi if you travel a short distance. 5. take a cloth bag instead of plastic bags when you go shopping. 6. give your old clothes to the poor areas to reuse them.,Task 5 Summary,Review the words and phra

15、ses,Sentence patterns,What are you trying to tell me? What are you trying to say? May I have a word with you? Have you heard the news? What do you think of? What your opinion? How can we ?,污染 植物 环境 保护 有帮助的 吸收 能量 全球变暖 解决问题,Talk about the simple ways to protect plants and environment,pollution plant environment protect helpful absorb energy gl