英语四级听力长对话模拟训练第18套_大学英语听力

英语四级听力长对话模拟训练第18套

　　Questions 19 to 22 are based on the conversation you have just heard.

　　19. What does the woman imply about her car?

　　20. What does the man say about the womans car?

　　21. What does the woman say about the mechanic?

　　22. What does the man offer to do?

　　Conversation Two

　　M: Doctor Cole, thank you for agreeing to this interview for the Daily Campus News. Can you tell us about what you and your colleagues discuss at the annual astronomy society meeting last month?

　　W: Yes. For the first time ever the scientific community has established the existence of planets outside our own solar system. Of course we knew that certain distant stars existed, but only recently did we learn that several of them are orbited by their own planets.

　　M: Why did it take so long to locate these planets?

　　W: Well, you have to understand that they are a billion times dimmer than their parent stars. It would be like trying to see the light of a candle next to a huge explosion. We dont currently have a telescope that can be used to see them.

　　M: But if the astronomers didnt see the planets through a telescope, how did they find them?

　　W: By a very indirect method. The astronomers measured subtle distortions in the frequency of the light from the parent stars and observed that some of the stars seem to rock back and forth. They determined that this was caused by gravitational pull from orbiting planets.