【文章內(nèi)容簡(jiǎn)介】 re killed and at least 30 people were injured. The police are worried about a 65year old man who has disappeared. They would like him to contact this number: 0762 874 531.The tornado has caused a lot of material damage and it has destroyed 17 houses. At least 100 people are now homeless. Rescue workers arrived in the village within minutes and they are still looking for victims.Speaker 3 Rescue workerWe were the first team to arrive in Amity. We got there about half an hour after the tornado had hit the village and it was an unbelievable sight. The biggest problem we had was getting into the village. Unfortunately, the road was blocked with cars and damaged buildings so we had to take the injured to hospital. We used a helicopter to take the injured to hospital. Now the main problem we have is the people who have lost their homes. Fortunately, everyone is helping the homeless.Speaker 4 ScientistTornadoes are extremely violent winds and they are quite frequent in the southern states of the US, especially at this time of year. Statistics show that there are more tornadoes in June than in other months. This particular tornado was extremely violent, about 250 kilometres an hour. Fortunately, it only lasted about five minutes. We would like to take this opportunity to warn people that if they are out of doors when a tornado approaches it is important to lie down or go under a bridge. And never stay in your car.Module 4(int=interviewer)Int: David, what do you see as the main problems with the environment?: Well, in a nutshell, the most urgent problem of all is the climate. The world39。s climate seems to be getting warmer.Int: We39。ve seen a lot of evidence of that, haven39。t we? Hotter summers, warmer winters, that kind of thing.: Yes, we have. Also, scientists have found that the ice at the Poles is beginning to melt.Int: We39。ve heard that too. Is that really happening?: Yes, I39。m afraid it is. And at sometime in the future, the ice may melt pletely. Then it39。s Possible that the sea could rise and coastal cities like New York and Shanghai could disappear under water.Int: It sounds very frightening.: I couldn39。t agree with you more. It39。s scary!Int: Can you explain why the climate39。s getting warmer?: Well, I39。ll do my best! It39。s pollution that39。s the problem. Gases from cars enter the atmosphere and stop the sun39。s heat from leaving the atmosphere. And factories give out chemicals that do the same thing. So as a result, the climate is getting warmer. Int: From what I understand, carbon dioxide from cars is a major problem.: You39。re absolutely right. Carbon dioxide is the gas that does most damage to the atmosphere. But we have a problem with trees too. You see, trees give out oxygen and take in carbon dioxide. So they39。re very useful because they use up the carbon dioxide.Int: I know what you39。re going to say. We39。re cutting down all the trees.: Yes, we cut them down because we need the land and because we use the wood for paper and furniture. That leaves more carbon dioxide in the atmosphere.Int: It39。s a terrible situation.: Yes, and another problem is all the garbage that we produce. We burn a lot of garbage, and once again, the gases pollute the atmosphere. The situation couldn39。t be worse, really. Int: We should recycle garbage, not burn it.: Of course we should.Int: It39。s strange, we know all this, and yet we do nothing but talk about it. I can39。t help but feel very concerned.: Yes, well, it is worrying. But governments are beginning to do something about it. I don39。t think it39。s too late.Module 4 Listening (workbook, Page 88)A: Have you heard? The British government is planning to tax plastic bags.B: Yes, it was on the news. They want to reduce the amount of rubbish. I can39。t help but feel that it39。s a good idea because they can39。t be recycled.A: They39。ve already done it in Ireland. If you go to a supermarket there you have to pay for each plastic bag.B: So most people use the same bags over again, do they?A: Yes. And the supermarket sells thick plastic bags which last longer.B: And there39。s a lot less rubbish in the streets, is there?A: Yes. But it39。s not just in Europe that plastic bags are damaging the environment. In many developing countries it39。s even worse. They39。re causing a serious pollution problem. In South Africa, for example, they call plastic bags the national flower because the wind blows them everywhere. Now the government has banned them and you can go to prison for 10 years if you use them.B: In Bangladesh too. They say that plastic bags were largely responsible for the terrible floods in 1988 and 1998. They blocked the drains and rainwater couldn39。t flow away.A: It39。s scary. They don39。t look dangerous but there are so many that they can kill. In India, cows eat them in the street and they die.B: In some parts of India they are banned. From what I understand, you can go to prison for 7 years if you use them. A: I can39。t help but feel that sending people to prison is very hard.B: That39。s because the situation is so serious. And people are not reasonable. They won39。t change their habits. A: Yes. And it isn39。t difficult to reuse the same bags over again. B: Or take a shopping basket or use paper bags.A: Some supermarkets in Britain are giving people natural bags. They39。re made from plants and will