题目内容
（请给出正确答案）
Where can ozone be found useful to life according to the passage？
A．Between ten and fifty kilometers up in the atmosphere.
B．In the far sky.
C．Near the sun.
D．Far from the sun.
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更多“Where can ozone be found usefu…”相关的问题
It can be inferred from the passage that ______.
A．there were altogether only two schools--the high school and the middle school in the small town where this story took place
B．polystyrene is the major factor that has done harm to the protective ozone layer of the atmosphere around the earth
C．the Board of Education actually had known the harmful effects of polystyrene on the environment before making the decision
D．Vogt and her classmates at last managed to persuade the Board of Education into changing their decision wish their academic knowledge
What can NOT be caused by a decrease or an increase in ozone？
A．Skin cancer.
B．Harm crops.
C．Harm animals and fish.
D．Increase in temperature.
Which of the following can be best used as the title of the passage？
A．Some Good News About the Ozone
B．The Montreal Protocol
C．The Ozone and CFC
D．CFC and Methyl Bromide
Traveling on an underground train can reduce exposure___________
A When you get up
B Where you stand while waiting to cross a road
C Where you walk
D Where you sit on a bus and how you travel
E When you go to bed
F When pollution levels rise and fallc
听力原文：M: Can I help you, Madam？
F: Yes. I'd like this blue shirt. How much is it？
Where are they talking？
A．At a shop.
B．At a cinema.
C．At a bank.
Air pollution can be as harmful to one's health___________
A When you get up
B Where you stand while waiting to cross a road
C Where you walk
D Where you sit on a bus and how you travel
E When you go to bed
F When pollution levels rise and fall
听力原文：M: Hello, Mary. Are you going to the library？
F: No, I'm going to the playground. Can you come with me, Tom？
Where is Mary going？
A．To the cinema.
B．To the library.
C．To the playground.
听力原文：M: Good afternoon, Madam. Can I help you？
F: Yes. I bought a watch here yesterday, but it doesn't work now.
Where did the conversation take place？
A．On a train.
B．In the dining room.
C．In a shop.
Why should governments ensure the careful handling and recycling of the CFCs now in use？
A．Because the CFCs directly damage the people's health.
B．Because the CFCs are poisonous chemicals.
C．Because the production of the CFCs costs a lot.
D．Because the CFCs can attack ozone by liberating atoms of chlorin
听力原文：F: Did Sarah tell you she was going to Beijing this Spring？
M: No, she didn't. But she is only 13. Where can she get the money？
What does the man think of Sarah's travel to Beijing？
A．It's impossible.
B．It's wonderful.
C．It's likely.
