单项选择题

What have the scientists noticed from the experiment（）

A. Ozone is not always associated with acid rain.
B. Cold weather would make the effects of pollution worse.
C. Many industries are unwilling to accept responsibility for air pollution.
D. Plants in warm weather are dying faster.

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单项选择题
Which of the following is NOT a result of acid rain（）

A．Fishes die in lakes.
B．Elements needed for healthy plant growth are washed out of soil.
C．Trees grow much more slowly than they should.
D．It contributes to climate change and causes frost.
问答题
Listen to the following passage. Altogether the passage will be read to you four times. During the first reading, which will be done at normal speed, listen and try to understand the meaning. For the second and third readings, the passage will be read sentence by sentence, or phrase by phrase, with intervals of 15 seconds. The last reading will be done at normal speed again and during this time you should check your work. You will then be given 2 minutes to check through your work once more. Please write the whole passage on ANSWER SHEET ONE.
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