(
课件网) Pollution Fighters Period 1 A quiz about trees When is the Tree- Planting Day February 14th March 12th March 14th A quiz about trees Which are the oldest trees on the earth pine trees (松树) oaks (像树) ginkgoes (银杏树) A quiz about trees How long do trees live on average 150 years. 4000 years. 70 years. A quiz about trees Which of the following things come from trees A. nuts B. cotton C. tea D. beans E. oil F. rubber A quiz about trees Which kind of pollution do trees help fight air pollution water pollution noise pollution all of the above 【Read the introduction, Line 1-4】 A scientist. Trees. (Because she wanted) to collect some facts for a class project on pollution. Because they’re the biggest and oldest living things on the Earth. 1. What is Doctor Ray 3. What are they talking about 2. Why did Judy interview Dr. Ray 4. Why is Dr. Ray so interested in trees 【Read Line 5-24】 n. 好处 come from trees trees make streets more beautiful and less noisy streets rubber paper fruit wood air Trees provide a lot of useful things for people. … take harmful gases from the air release oxygen back into the air [‘Dksid n] 氧气 clean the air/ make the air pure cool the air Trees cool the air as well as clean the air Introduce the good of trees make streets … provide … such as … clean take … from release … into 1.5 hectares … /keep … alive and healthy … cool natural air conditioners three … do the job of … 15… all day as well as You can begin with: Trees do much good to us. They … When insects attack a tree, it can warn its neighbours. 2. Trees produce a chemical to protect themselves. 3. Some trees can join their roots underground and pass food and water to each other. T T T T How do trees protect neighbours How do trees protect themselves How do trees pass food and water When insects attack them, they can warn their neighbours. They protect themselves by producing a chemical that makes their leaves taste nasty. They can join their roots together underground. (unpleasant) cut down burn replace hardly any of them destroy realize the importance of taking care of trees look after new trees write on both sides of paper use cloth bags for shopping try not to use disposable chopsticks (一次性筷子） make some tree protection laws …… I interviewed Dr. Ray about trees and got a lot of facts about them. Trees are the biggest andoldest living things on the Earth. Trees do much good to our life. For example, they make streets more beautiful and less noisy. Also, they provide us with a lot of things such as wood, paper and so on. Besides, trees can cool the air as well as clean it. They take harmful gases from the air, and release oxygen back into the air. They are called natural air conditioners. Three trees can do the job of fifteen air conditioners. Isn’t it surprising Another interesting fact is that trees can communicate with each other. For instance, they can pass food and water b ... ...
