Governments around the world are pushing for an end to plastic straws （吸管） and bags.More and more businesses are turning to paper products as a choice.Paper is considered by many to be better than plastic.However，it，too，is harmful to the environment.

   Firstly，paper bags and straws are made from trees.Trees，as you know，can reduce （减少） carbon dioxide （二氧化碳） levels in the atmosphere. Theycan slow down climate （气候） change.An increase in the use of paper bags can cause more acts of cutting down trees.

   Secondly，products made from paper require more energy and water.About 10 percent more energy and four times as much water is used to produce a paper bag than a plastic one.You might say that we can use recycled paper to save that energy and water.This seems to be a good idea.However，it takes even more energy and water to go through the recycling process than to make a brand new paper bag.Products made from recycled paper are also often short﹣lived.

   Thirdly，paper products are heavier than plastic ones.That means they require more oil to transport.Seven trucks are needed to transport two million paper bags，while only one truck is needed to transport the same number of plastic bags.The increased weight also leads to a large amount of waste once the bags are thrown away.

   Paper products are actually a lose﹣lose for both the environment and businesses.They are more expensive than plastic products.A paper straw costs about 5 to 12 cents，while a plastic one usually costs only about 2 cents.

   The most environment﹣friendly solution is to avoid single﹣use products altogether.Products like glass water bottles and steel straws can be used over and over again.They are much better than either paper products or plastic products.Through increasing the use of these products，you can greatly reduce your throwaway waste and truly make our Earth a greener place!

（1）What does the underlined word " They" in Paragraph 2 refer to？ 　 　

A．	Plastic products.
B．	Trees.
C．	Paper products.
D．	Businesses.

（2）Compared with transporting two million plastic bags，transporting two million paper bags requires 　 　.

A．	fewer trucks
B．	six more trucks
C．	twice as many trucks
D．	the same number of trucks

（3）The writer compared the price of a paper straw and that of a plastic straw to show that 　 　.

A．	paper products are not a good choice for businesses
B．	it is difficult for all businesses to turn to paper products
C．	most people believe paper products are better than plastic ones
D．	paper products are as harmful to the environment as plastic ones

（4）By writing this article，the writer mainly wanted to 　 　.

①compare plastic products with paper ones

②correct people's wrong ideas about paper products

③suggest people use reusable products like steel straws

④list the advantages and disadvantages of using paper products

A．	①②
B．	③④
C．	①④
D．	②③

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