¡¶Astronomy: the science of the stars¡·ppt70£¨8·Ý£©

È˽Ìпαê±ØÐÞ3 Unit 4 Astronomy the science of the stars Listening exercise ¿Î¼þ£¨¹²22ÕÅPPT£©+ËØ²Ä £¨8·Ý´ò°ü£©
　　U4 Listening.doc
　　U4 ÌýÁ¦Ô­ÎÄ.doc
　　U4P5 Listening exercise.ppt
　　Using language-listening Part1.mp3
　　Using language-listening Part2.mp3
　　Workbook-listening Part1.mp3
　　Workbook-listening Part2.mp3
　　Workbook-listening task.mp3
　　Using Language
　　THEORIES OF GRAVITY
　　Michael Jones of the New Space Magazine is talking with space traveller Li Yanping about changes in the theory of gravity.
　　LY = Dr Li Yanping  
　　MJ = Michael Jones
　　Listen to Part 1.
　　Listen again and fill in the blanks.
　　MJ: Hello, Dr Li Yanping. It¡¯s so good of you to talk to me. Some _______ ask us why things always fall back to _____ if you throw them up in the air. Could you ________ it?
　　LY: Well, at first people thought it was because the earth was the ______ of the universe. Of course that was ______. One day Isaac Newton watched an ____ fall to the ground. He said that something else must be ______ the apple back to earth. He called it ¡°gravity¡±.
　　MJ: I see. Did people _______ his idea?
　　LY: They did. Later they wort that bigger _______ (like the sun) have stronger gravity than _______ objects (lir planets). If you¡¯re travelling in ____ space, you couldn't fall back to the earth. You¡¯re just too far ______.
　　Listen to Part 2.
　　Listen again and fill in the blanks.
　　MJ: Does it mean there¡¯s no ______ in space?
　　LY: No. In a spaceship you would feel the pull as it got ______ to such an object. You would travel faster and faster ________ it.
　　MJ: Until you hit it?
　　LY: Not exactly. You may _____ it very fast and then it would throw you out into space again. After that you would slow down to the _____ speed.
　　MJ: How do you know this?
　　LY: In ____ Einstein said that in space large objects make space-time bend; the larger the object, the ______ space-time bends. So time goes ______ in very strong gravity.
　　MJ: What about ______ holes?
　　LY: That¡¯s a place in space which has such a strong ______ that nothing can escape ____ its gravity. There is a kind of edge  around this mass. If you cross over this edge, it¡¯s _________ for you to get back. However if you don¡¯t cross this edge, you can still ______. Stephen Hawking has done a lot of ________ into black holes. He has shown that they ¡°spit¡± things out as _____ as ¡°eat¡± them.
　　Workbook-Listening
　　AN INTERVIEW WITH YANG LIWEI
　　R = Mr Renault   Y = Yang Liwei
　　Listen to Part 1.
　　Listen again and fill in the blanks.
　　R: Than so much, Mr Yang, for coming to tals today about your __________ in space.
　　Y: Not at all. I¡¯m _______ to be here.
　　R: Please can you tell us your most _______ moment?
　　Y: Well, that was when the spaceship began to ____ off the ground. Then I knew that I was really on my _____ and that China would become the _____ country to send people into space.
　　R: Did you feel _______?
　　Y: No, because I was _______ not to worry. So I watched all my instruments and stayed _____.
　　R: What surprised you?
　　Y: The _______ of space. I¡¯d never realized how lovely the earth looks till I was going round it.
　　Listen to Part 2.
　　Listen again and fill in the blanks.
　　R: Did you always want to be an astronaut?
　　Y: Well, I ________ of it when I was young, but I never thought my wish would come true. It all happened __________. First I got my _______ and then I trained for ____ years to fly airplanes and then to fly a _________.
　　R: I see. Did you have to be a _______ size and weight?
　　Y: Yes. An astronaut has to be smaller than ___ cm and weigh less than ___ kg.
　　R: So you were the perfect ______! But of course you had to work very hard. Would you like to go into space ______?
　　Using Language
　　THEORIES OF GRAVITY
　　Michael Jones of the New Space Magazine is talking with space traveller Li Yanping about changes in the theory of gravity.
　　LY = Dr Li Yanping  
　　MJ = Michael Jones
　　Listen to Part 1.
　　Listen again and fill in the blanks.
　　MJ: Hello, Dr Li Yanping. It¡¯s so good of you to talk to me. Some students ask us why things always fall back to earth if you throw them up in the air. Could you explain it?
　　LY: Well, at first people thought it was because the earth was the centre of the universe. Of course that was wrong. One day Isaac Newton watched an apple fall to the ground. He said that something else must be pulling the apple back to earth. He called it ¡°gravity¡±.
　　MJ: I see. Did people accept his idea?
　　LY: They did. Later they wort that bigger objects (like the sun) have stronger gravity than smaller objects (lir planets). If you¡¯re travelling in deep space, you couldn't fall back to the earth. You¡¯re just too far away.
　　Listen to Part 2.
　　Listen again and fill in the blanks.
　　MJ: Does it mean there¡¯s no gravity in space?
　　LY: No. In a spaceship you would feel the pull as it got closer to such an object. You would travel faster and faster towards it.
　　MJ: Until you hit it?
　　LY: Not exactly. You may pass it very fast and then it would throw you out into space again. After that you would slow down to the usual speed.
　　MJ: How do you know this?
　　LY: In 1905 Einstein said that in space large objects make space-time bend; the larger the object, the further space-time bends. So time goes slower in very strong gravity.
　　MJ: What about black holes?
　　LY: That¡¯s a place in space which has such a strong mass that nothing can escape from its gravity. There is a kind of edge around this mass. If you cross over this edge, it¡¯s impossible for you to get back. However if you don¡¯t cross this edge, you can still escape. Stephen Hawking has done a lot of research into black holes. He has shown that they ¡°spit¡± things out as well as ¡°eat¡± them.
　　Workbook-Listening
　　AN INTERVIEW WITH YANG LIWEI
　　R = Mr Renault   Y = Yang Liwei
　　Listen to Part 1.
　　Listen again and fill in the blanks.
　　R: Than so much, Mr Yang, for coming to tals today about your experience in space.
　　Y: Not at all. I¡¯m happy to be here.
　　R: Please can you tell us your most exciting moment?
　　Y: Well, that was when the spaceship began to lift off the ground. Then I knew that I was really on my way and that China would become the third country to send people into space.
　　R: Did you feel afraid?
　　Y: No, because I was trained not to worry. So I watched all my instruments and stayed calm.
　　R: What surprised you?
　　Y: The beauty of space. I¡¯d never realized how lovely the earth looks ti