题目内容
China has sent several pandas to some foreign governments as gifts.
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听力原文：M: Hi, Fran, did you attend the regular meeting this morning？ What did the manager say about my plane layout of signals？
W: Don't worry. The boss was very impressed and he said your layout was right on target.
Q: What does the woman imply？
(19)
A．Because she will see her friend off at the airport.B．Because she must catch the plan
听力原文：W: Mike! Long time no see. What's up？
M: Hey, Lydia. Fancy meeting you here. Are you keeping busy？
W: A little bit. Well, someone told me you've got bunches of good stamps, like a museum.
M: I do have a lot. I'm interested in stamp collecting. I guess it's actually a part of my life.
W: They cost a lot though. How can you afford them？
M: Sometimes I do have hard time with them. I've to save every penny. But it's worthy. And, when big days such as my birthday or Christmas come, most of my friends give me stamps as gifts.
W: That's good. Stamp collecting is also a long-term investment. The price keeps going up. You can earn a lot by bringing them to the market.
M: I'm afraid not. For me, stamp collecting is merely a bobby, a personal fondness. I'd be sad if I'd ever have to sell them.
W: I can imagine. Keeping a hobby is like having a friend, both enjoyable and rewarding. You get great pleasure by attending them.
M: I couldn't agree more.
W: By the way, have you ever been to other countries？
M: Not yet.
W: Then how do those foreign stamps come from？
M: Well, I've some friends studying abroad. They send me some at times.
W: I see. My friends travel a lot every year. Lf you like I could ask them to help you with that.
M: That would be too good if it's not trouble for them.
W: Not at all.
M: Now, I'm heading for the post office. I heard a new set of stamps is for sale for the World Cup. Do you have interest to go with me？
W: I'd love to. But I've to meet my friend at 4 o'clock at the airport. He's coming back for vacation. Anyway, I'll call you later.
M: All right. Then see you soon.
W: See you.
(20)
听力原文： Scientists in the United States have reported some good news about the ozone in the atmosphere. Recent findings suggest that the destruction of ozone by pollution is slowing. Ozone is a form. of oxygen. Its presence above Earth protects us from radiation from the sun.
In one study, researchers examined information gathered by NASA space agency satellites and by equipment on Earth and said the atmosphere was losing about eight percent of the ozone layer per ten- year period since the late 1970s. In the last five years, though, that rate of loss has dropped by half. The atmosphere should start to gain ozone before long. A full recovery, however, is about 50 years away, as long as the Montreal Protocol remains in place.
That is an international treaty from 1987 to restore the ozone layer. The treaty restricts the use of a number of chemicals that destroy ozone, like chlorofiuorocarbons, or C-F-C's. Wide use of C-F-C's began in the 1930s. They became popular coolants in devices such as refrigerators and air conditioners. C-F-C's remain in the atmosphere for years.
The Montreal Protocol also restricts the use of methyl bromide, a chemical to kill insects. Farmers and shippers are the main users. Natural sources of methyl bromide include oceans and some plants. Scientists say the bromine gas it produces is 50 times more destructive to ozone than chlorine gas from C-F-C's.
(30)
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