SAMPLE DIALOG A: Most of the worlds rainforests are in danger of destruction by loggers, farmers and developers. They are disappearing at a rate of 100 acres a minute! B: What a tragedy!, Many of the worlds plant and animal species exist only in A: We really need to save the beautiful forests B: Yeah, we've got to find a way to save them A: Do you know our mayor is making a call to plant trees? B: Yeah, we do have to plant more trees. I hear China doesnt have a lot of forests compared with many countries A: Thats true. I've just read an article about afforestation. China's forest coverage rate was 18.21percent last yea, ranking only 130th in the world B: No wonder we have to plat more trees A: Dont lose heart. Progress has been remarkable. In 2000 the rate was just 16.55 B: Any other good news? A: China has stepped up its tree-planting efforts Now it's the worlds No. 1 planter of B: Wow. I'm impressed MoDEL3 What a terrible sandstorm Script Susan: Hey, John. You're back. A few days ago, a big sandstorm hit our city John: Oh, that's bad Susan: The air was full of dirt and sand and dust. I had to wear a scarf around my John: The dust, as I know, comes from Mongol ia. And from my reading in science, Ive heard the dust often comes after a long period of drought. Susan: This is a serious problem in many parts of the world. and unfortunately our ity is one of them John: And if the drought continues, the soil is easily airborne. And then if the wind comes, the soil can be lifted up on the cold are that rises up, and it can travel very long distances Susan: Normally, when there's a wind, it can clear the air. and you have beautiful weather. But when the dust is brought in with the wind, then you cant breathe, you cant see well, and it's dangerous for driving, or for walking John: Yeah. You know, when the dust is lifted up it can go as high 3, 000 meters. And it's not iust China that has problems. but many other countries. For example, the middle of Australia sometimes has dust storms, and some of the dust goes up7 SAMPLE DIALOG A: Most of the world’s rainforests are in danger of destruction by loggers, farmers and developers. They are disappearing at a rate of 100 acres a minute! B: What a tragedy! , Many of the world’s plant and animal species exist only in rainforests. A: We really need to save the beautiful forests. B: Yeah, we’ve got to find a way to save them. A: Do you know our mayor is making a call to plant trees? B: Yeah, we do have to plant more trees. I hear China doesn’t have a lot of forests compared with many countries. A: That’s true. I’ve just read an article about afforestation. China’s forest coverage rate was 18.21percent last yea, ranking only 130th in the world. B: No wonder we have to plat more trees. A: Don’t lose heart. Progress has been remarkable. In 2000 the rate was just 16.55 percent. B: Any other good news? A: China has stepped up its tree-planting efforts. Now it’s the world’s No.1 planter of trees. B: Wow, I’m impressed. MODEL3 What a terrible sandstorm! Script Susan: Hey, John. You’re back. A few days ago, a big sandstorm hit our city John: Oh, that’s bad. Susan: The air was full of dirt and sand and dust. I had to wear a scarf around my head. John: The dust, as I know, comes from Mongolia. And from my reading in science, I’ve heard the dust often comes after a long period of drought. Susan: This is a serious problem in many parts of the world, and unfortunately our city is one of them. John: And if the drought continues, the soil is easily airborne. And then if the wind comes, the soil can be lifted up on the cold are that rises up, and it can travel very long distances. Susan: Normally, when there’s a wind, it can clear the air, and you have beautiful weather. But when the dust is brought in with the wind, then you can’t breathe, you can’t see well, and it’s dangerous for driving, or for walking. John: Yeah. You know, when the dust is lifted up it can go as high 3,000 meters. And it’s not just China that has problems, but many other countries. For example, the middle of Australia sometimes has dust storms, and some of the dust goes up