任务型阅读。阅读下列短文，根据短文内容回答问题。
Pollution problems are becoming more and more serious. One of them is called "white pollution"
caused by plastic, such as shopping bags, boxes and cups. In China about three billion plastic shopping
bags are used every day, which results in a great waste of resources(资源) and heavy environmental
pollution. Luckily, the government has stopped us from using free plastic bags, telling all stores and
supermarkets not to provide customers(顾客) with free plastic bags since June 1, 2008. From then
on, people have been supposed to use cloth bags and shopping baskets instead of plastic bags in order
to protect our environment.
Now more and more people have realized the importance of using the cloth bags and the shopping
baskets. For one thing it can protect our environment, for another it can also make our country cleaner
and more beautiful. Yet we have more things to do to solve the problem of "white pollution"!
1. Is "white pollution" caused by plastic?
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2. How many plastic shopping bags are used every day in China?
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3. How long have all stores and supermarkets been told not to provide customers with free plastic bags?
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4. What will happen if we use cloth bags and shopping baskets?
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5. What other things can we do to solve the problem of "white pollution"?
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