题目内容
阅读下列短文，从所给的四个选项中，选出最佳答案
Acid rain（酸雨）is a kind of pollution．It is a big problem in eastern Canada and the northern part of the U．S．Canada is working hard to reduce（减少）acid rain in this country．The Canadian government wants the US to help too．
More than half of Canada acid rain comes from the US．Acid rain has already killed fish and plants in 14 000 lakes in Ontario and Quebec．It is also damaging the trees and buildings in esatern Canada．
It will cost the US government about 15 billion a year to clean up acid rain．The President of the US has agreed to work with Canada on that problem．But he has not agreed to spend money needed．
1．Why do we say acid rain is a kind of pollution?
[
]A．Because it is a big problem in Canada and the U．S．
B．Because fish and water plants have died from it．
C．Because it is also harmful（有害的）to trees and buildings．
D．Both B and C
2．Acid rain takes place in ______．
[
]A．Canada
B．certain parts of both Canada and America
C．the U．S．
D．every part of both Canada and America
3．The problem of acid rain is ______．
[
]A．more serious in the U.S. than in Canada
B. more serious in Canada than in the U．S．
C．not so serious in Canada as in the U．S．
D．as serious in Canada as in the U．S．
4．What do Americans do to deal with the problem of acid rain?
[
]A．They are working hard．
B．They spend five billion dollars every year．
C．They ask for the Canadian's help．
D．They work with Canadians．
5．The President of the US has promised to do his best to help Canada to solve this problem, hasn't he?
[ ]
A．Yes, he has, but he hasn't agreed to spend money needed．
B．Never, he only agreed to work with them．
C．Perhaps, he has been discussing about it．
D．No, he hasn't, and he shows that he was short of money．
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