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发表于 2003-10-15 22:56:00
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姑且附上吧 36-39 listen to a conversation between two students. They are discussing material from US history class. M: Hey Teresa! thanks for agreeing to help me review all this history material. W: No problem, Bob. So do you want to start with the stuff missed yesterday? They are part about urban problems in the colonial period? M: Yeah, that''ll be great. W: Ok. Well, when the British were building cities in American colonies, they had to figure out how to make the cities run smoothly, right? Like...take traffic for instance. M: Traffic? They had traffic that then? W: Well, not the same kinds of traffic cities have today. Back in 18th centenary there were not any automobiles like there are now. But there were other vehicles like coaches and cars, you know, the kind had been pulled by horses say. Only few people could afford to have their own coaches then. but there were more and more public coaches. And cars, they were a big problem cause car driver usually overloaded their cars. And these oversize clumsy cars would slow down the traffic, and when you added to that all the farm animals. M: Farm animals? In the cities? W: Lots of them, cattle, pigs and other live stuck rolls in the streets. And they really caused trouble, although the pigs at least had good reasons for being their. M: They did? W: Yeah, the town''''s people used pigs to clean up the garbage that was thrown into the streets. But then the pig interfered with traffic. M: So what do the colonists do? W: Well, they passed traffic laws. Like one that said, if your animals were found wondering in the street, they could be seized. Of course people who owned pigs didn''t want to keep them penned up because the pigs were so good at cleaning up the streets.
M: Sounds like a good idea letting them clean up the garbage. But I cannot see how pigs lying around in the streets could really slow down the traffic.part b 第二段的最后一句话 应该是but i CAN see how.....吧好像cannot
36, What is the main topic of the conversation? 37, According to the conversation, how did colonists try to make traveling in cities easier?
40-43, listen to part of the talk in a Geography class. Not long ago, some of you may have read about the team of mountain climbing scientists who helped to recalculate the elevation of the highest mountain in the world, Mount Everest(珠穆朗玛峰). Of cause the elevation of Mount Everest was determined many years ago using traditional "SURVEYING" methods. But these scientists wanted to make a more precise measurement, using a new method that takes advantage of recent advances in technology; it’s called the Global Positioning System. The Global Positioning System uses 24 satellites that"CIRCLE"the earth. Each of the satellites is constantly sending out signals, and each signal contains important information that can be used to determine the longitude, latitude and elevation at any point ON the earth''s surface. Well in order to use the system to calculate AMOUNT OF EVEREST''S elevation. Scientists need to put a special receiver on the summit to receive signals from the satellites. The problem with this was that in the past, the receivers were much too heavy for climbers to carry. But now these receivers have been reduced to about the size and weight of a hand-held telephone, so climbers were able to take the receiver to the top of the Everest, and from there, to access the satellite system signals that would allow them to determine the precise elevation. And it turns out that the famous peak is actually a few feet higher than us previously thought.
40, What is the talk mainly about? 41, Why does the speaker mention a hand-held telephone?
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