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高二阅读与写作训练
第I卷(选择题)
一、阅读理解 1
There was a time when a trip to the supermarket in the United States often ended with a simple question from the cashier:“Paper or plastic?”Well, which type of bag would you choose?
Although all types of bags have some influences on the environment, it has long been thought that paper bags are kinder. They are made from a renewable source, break down esily, bum without giving off thick smoke and can be recycled. However, the producing process behind paper bags uses more energy than that of plastic ones.
How can this be true?
Studies show that paper bag production requires four times as much energy as plastic bag production. And the amount of water used to make them is twenty times higher. Besides, the influence on forests is very serious. It takes about fourteen million trees to produce ten billion paper bags, which happens to be the number of bags used in the United States yearly. In terms