新标准大学英语(第二版)综合教程2Unit6B篇练习答案及课文翻译[文字可编辑]

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3 But even these methods of generating interest have become conventional. Rather more radical is the proposal which a physics professor has come up with – to learn science from the mistakes in science fiction films. Some of the films may be dreadful, but they hide a lot of helpful messages. Students just have to sit back, relax, enjoy the film, and soak up a bit of science at the same time.
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Warming Up
2. Where did you learn most about science? 3. How much do you remember about your science
lessons at school? 4. Who was your best science teacher? Why do you
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wenku.baidu.com
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2 So how do you get them to learn about science? Well, if you go into a campus bookstore you can find out. There are songbooks for biochemists, with chemical formulae set to music to make them easier to remember. Relativity is explained in a video game which is a simulation of a rocket journey through space: You can play tennis on board as the rocket speeds up or slows down. And there are cartoons to make even the most obscure scientific subjects accessible, and fun as well.
remember him / her? 5. Can you remember any lesson in particular? 6. What would you do to improve science teaching at
school?
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Science: fact or fiction?
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5 So the film is fiction without the science. The same could be said of the 1986 film Aliens. In this film the crew saunter around the spaceship as if they were at home on earth – whereas they should be floating, in a gravity-free environment. The producers of Aliens would fail a first year physics exam, but Stanley Kubrick and Arthur Clarke, the brains behind 2001: A Space Odyssey, would pass the same exam with flying colours. On board the spaceship a giant wheel rotates, generating centripetal force and giving the astronauts on board a sense of “up” and “down”.
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4 A few examples will show what the professor has in mind. In The Day the Earth Caught Fire (1961), the earth is pushed towards the sun as a result of two simultaneous atomic explosions. But this contravenes Newton's Third Law of Motion – namely, that action and reaction are equal and opposite. Since the Earth weighs six thousand billion billion tons, a huge blast would be needed to push it into the right direction. Supposing it hurled a hundred million tons of rock and debris into space. This explosion would require a bomb far greater than any that has ever exploded. But a few basic sums would show that such a blast, as well as killing every single inhabitant of the earth, would only shift the Earth about a quarter
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6 The treatment of relativity in science fiction films is even more confusing. Take Star Trek: The Voyage Home (1987). As the spaceship revolves round the sun, it gathers so much speed that it moves backwards into history. But this is nonsense, not relativity. As Jones puts it, “Einstein said that nothing travels at more than the speed of light, not that the clocks will run the other way if you go fast enough.” Even Superman (1978) is baffled by the concept. It takes him a split second to fly round the earth anticlockwise to save Lois Lane, who has fallen victim to an earthquake. Jones: “Time is not like a car. It has no reverse gear.”
Contents
Active Reading 2
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Work in groups and discuss the questions: 1.How many branches of science can you think of? ?anatomy: studying the body ?astronomy: studying space ?biochemistry: studying chemical processes ?botany: studying plants ?chemical engineering: studying chemical substances ?cosmology: studying the universe
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Science: fact or fiction?
1 Students aren't what they used to be. These days, it seems, some of them never even open a book. Such is the depressing picture painted by popular science writer Steve Jones in his book The Single Helix, laying the finger of blame on modern communication systems. The message is the medium; once upon a time there were books, but now, Jones says, “the medium is, or so it seems, anything but lines of print on a page.” Many students are just not used to reading books anymore – they're such an outdated form of communication.
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?ecology: studying organisms and their environment ?genetics: studying genes and variation ?meteorology: studying weather ?microbiology: studying viruses etc ?nutrition: studying food ?oceanography: studying the seas ?pharmacology: studying medical drugs ?radiology: studying radiant energy such as X-rays
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