新视野大学英语视听说教程 3 Unit 7-1

（单词翻译）

Uint7
II. Basic Listening Practice
1. Script
M: Now we have satellite and high-powered microscope, it’s easy to think we know everything about the world; but we still don’t understand EI Nino.
W: Right. Scientists all over the world over are even uncertain about the cause of the warm Pacific current that brings storms or drought—the mysterious EI Nino.
Q: Which of the following is true according to the conversation?
2. Script
M: Everyone is talking about environmental problem: acid rain, the greenhouse effect, holes in the ozone¹ layer. We should think positively². What can we do to improve things?
W: I agree. We could do a lot more to harness the sun’s energy for heating and lighting³ in our homes. In Japan 43,000 solar roofs were installed in 2002.
Q: How do the man and the woman view the environment?
3. Script
W: We lived in Beijing some years ago. It was always difficult to keep the house clean with wind from the north blowing sand from the desert at us.
M: That’s why the Chinese government has been encouraging people to plant trees along the edges of the Gobi Desert. Now those trees act as wind barriers.
Q: What did the government encourage people to do?
4. Script
M: Many old refrigerators and cars are environmental hazards because they contain CFCs that destroy the ozone layer.
W: Yes, but government or organizations are helping⁴ people to safely dispose of old refrigerators or, in the case of cars, to upgrade their air conditioning.
Q: What are government departments helping people to do?
5. Script
M: Hey, that’s an aerosol⁵ spray you’re using on your hair! Build a bomb or set fire to the apartment to kill us quickly instead of making holes in the ozone, so we die of cancer.
W: Cool it, man. This spray doesn’t contain CFC s. And you’d better read a little more. In 2003 the hole in the ozone layer shrank by 20 percent, so there’s no reason to panic.
Q: What does the man mean?

Keys: 1.B 2.D 3. A 4.A 5.C