Questions 19 to 22 are based on the conversation you have just heard.
19. [A] In the student recreation center.
[B] In the campus dining hall.
[C] In the university bookstore.
[D] In a classroom.
20. [A] Studying.
[B] Preparing snacks.
[C] Playing cards.
[D] Learning how to play bridge.
21. [A] Miss her card game.
[B] Stay up too late.
[C] Take too heavy a work load next semester.
[D] Neglect her studies to play bridge.
22. [A] He already knows how to play.
[B] He doesn’t like to play games.
[C] He doesn’t have a partner.
[D] He doesn’t have enough free time.
Questions 23 to 25 are based on the conversation you have just heard.
23. [A] The effect of the atmosphere on rainfall.
[B] How conditions on earth support life.
[C] How water originated on earth.
[D] A new estimate of the age of earth.
24. [A] The surface of the ocean is expanding.
[B] Volcanic activity is increasing.
[C] The surface of earth contains tons of cosmic dust.
[D] Thousands of comets are colliding with earth’s atmosphere.
25. [A] They are found under the oceans.
[B] They were most active when earth was first formed.
[C] Their emissions created earth’s atmosphere.
[D] Their fumes are mostly water in the state of a gas.
Conversation One
19．B综合推断题。女士说This food is terrible．I can’t even finish my dinner．男士说the university could hire a better food service，结合这两句话可以推断，对话发生在食堂，所以B正确。
20．C信息明示题。女士说I’m going over to the student recreation center to play some bridge．接下来男士问You are spending your time on a card game?此可知，女士计划晚上play bridge(打桥牌)，故选C。
21．D信息明示题。男士说You should be caleful not to play so much that you don’t get your studying done．所以D正确。
22．D信息明示题。男士说I have a pretty heavy workload this semester．I have to spend my evenings studying．由此可知，男士这学期的学业很重，他晚上也要学习，故选D。
Conversation Two
23．C综合推断题。男士在对话开始时提到了海水来自彗星这一新理论，接下来的对话主要就是围绕该理论展开的，最后还引出了海水来自火山这一传统理论，由此推断，对话主要与地球上水的来源，特别是海水的来源有关，故选C。
24．D信息明示题。男士说海水来源的新理论是基于最近人造卫星所拍摄的照片的，宇宙人造卫星最近探测到，每天有将近四万颗小彗星与地球外层大气相碰撞，故选D。
25．D信息明示题。女士指出，地质学者认为火山气体大多为蒸汽，故选D。
*考点
●fill sth．up意为“填写，填满，充满”，与fill相关的短语还有：fin sb．’s shoes接替某人的工作、职务等；fill in(for sb．)临时接替某人；fill sth．in除了指“填写，补充，填满”以外，还可指“打发，消磨(时间)”，如：Jack filled in the afternoon watching television．杰克以看电视打发下午的时间。
Questions 19 to 22 are based on the conversation you have just heard.
19. Where does the conversation take place?
20. How does the woman plan to spend her evening?
21. What does the man warn the woman not to do?
22. Why does the man refuse the woman’s offer?
Conversation Two
M: How did you like yesterday’s astronomy class?
W: It was interesting. But the point she was trying to make seemed a little far-fetched.
M: Oh, that new theory that ocean water came from comets?
W: Yeah. Do you remember what it was based on?
M: Some recent satellite photos, I think. Apparently, space satellites recently detected thousands of small comets colliding with earth’s outer atmosphere, almost 40,000 per day.
W: OK, they’re collided with atmosphere. So that’s what created the water?
M: It’s not the collision that created water. Comets contain water. They’re made up mostly of cosmic dust and water. When they collide with the atmosphere, they break up. And the water they contain rains down to earth. Ocean water came from that rain.
W: Oh well, this morning I asked my geology professor about that. He said that most geologists don’t accept it.
M: Why not?
W: Special research indicates that most of the water molecules from the comet would have burned up as they fell through the atmosphere. Enough rain couldn’t have reached the earth to fill up the ocean.
M: Well, did the geologists have an alternative theory to explain where ocean water came from?
W: Yeah, he said the more traditional view is that the ocean water came from volcanoes.
M: From volcanoes?
W: Right. They say volcanic fumes are mostly steam. And they claimed that it was the volcanic steam that created the oceans, not rain from comets.
Questions 23 to 25 are based on the conversation you have just heard.
23. What are the speakers mainly discussing?
24. What did recent photographs from a space satellite indicate?
25. What aspect of volcanoes does the woman mention?