Johnson believes that international action to reduce global warming is required immediately or it may be too late. “Everything is connected — Antarctica may be a long way away but it is an important part of the Earth’s system,” said Johnson. “It contains 90% of the world’s ice, 70% of the world’s fresh water and that is enough, if it melts completely, to raise sea levels by 63 metres.”
Even in a worse-case situation scientists don’t expect the ice to entirely disappear, but predict that, because of the melting ice sheets, average sea level rise will be around 1.4 metres higher by the end of the century.
1. The underlined word “paradoxically” (in Paragraph 2) most probably means“________.”
A. rapidly
B. approximately
C. contradictorily
D. apparently
[答案] C
2. What is the effect of the hole in the ozone layer on Antarctica?
A. It is causing the ice to melt faster.
B. It is making much of the continent colder.
C. It is making the effects of global warming in the region worse.
D. It is reducing the amount of water in Antarctica.
[答案] B
3. What do scientists think is the biggest danger facing Antarctica?
A. Rising sea levels.
B. Warming sea water temperature.
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