题目内容
Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
听力原文： Many scientists today are convinced that life exists elsewhere in the universe. Life probably much like that on our own planet. As far as astronomers can determine, the entire universe is built of the same matter. They have no reason to doubt that matter obeys the same laws in every part of the universe. Therefore, it is reasonable to guess that other stars, with their own planets, were born in the same way as our own solar system. What we know of life on earth suggests that life will arise wherever the proper conditions exist.
If we suppose that every star in the universe has a family of planets, then how many planets might support life？ First, eliminate those stars that are not like our sun. Next. eliminate most of their planets; they are either too far from or too close to their suns. Then eliminate all those planets which are not the same size and weight as the earth. Finally, remember that the proper conditions do not necessarily mean that life actually does exist on a planet. It may not have begun yet, or it may have already died out.
This process of elimination seems to leave very few planets on which earthlike life might be found. However. even if life could exist on only one planet in a million, there are so many billions of planets that this would still leave a vast number on which life could exist.
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A．To call Don at the end of the afternoon.B．To give Don's students the next assignment
【S5】
What does the underlined word "replicate" (Paragraph 5) mean？
听力原文：M: Hi, Hellen. How are you doing？
W: Pretty good. Thanks. Have you helped me look at my graduate school application, and the statement of purpose I wrote？
M: Well, yeah. Basically it's good. What you might actually do is to take some of the different points here and actually break them out into separate paragraphs, like your purpose for applying for graduate study, specialty, and why do you want to do the area you specify, what you want to do with your degree when you get it.
W: OK, right.
M: So you may expand on each point. Expand some more on what's happened in your life and what shows your motivation and interest in this area geology.
W: OK, so make it a little more personal？ That's OK？
M: That's fine. They look for that stuff. It's critical that somebody see what your passion is and your personal motivation for doing this. You might give a little more explanation about your unique undergraduate background, like the music program, what you got from that and why you decided to change. I mean it is kind of unusual to go from music to geology. Right？
W: Yeah. I was, I was afraid of that, you know, maybe the personal type stuff wouldn't be what they want. But...
M: You know, I think probably your music background is the most unique thing that you get your records.
W: Right.
M: So you see, you get to make yourself stand out from a couple of a hundred of applications. Does that help any？
W: Yeah, it does. It gives me some good ideas.
M: Also, think about presentation, I mean the presentation formats, your grammar, and all that stuff they are looking at in your materials at the same time.
W: Right. OK.
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