阅读理解。
What do people do with their old, out-of-date but still useful computers? Most people don’t know
what to do with them. Many old computers are put away in homes. Many more are simply thrown out
with the rubbish.
Finally, some companies are thinking of ways to bring down the number of old computers. Sony has
agreed to help recycle old Sonyproducts(产品). Dell, Hewlett-Packard and other companies now also
t ake back some old computers.
In some countries, laws(法规)are being passed, too. Computer companies will have to pay for
collecting and recycling their used products. And 70% of computer waste must be recycled. The idea
behind the laws is that computer companies themselves should pay the cost. That will encourage them
to make computers that are easier and cheaper to repair andupgrade(升级).
Yet while many people are throwing away good computers, others cannot afford them at all. Hundreds of organizations(组织)are working to solve this problem. They collect and repair old computers. Some
also teach others how to repair computers.
The computers then go to schools,charities(慈善团体)and people who need them. Giving a used
computer to one of these organizations can turn one person’s rubbish into someone else’s useful things-
and cut down on waste, too.
1. What do many people do with old computers?
A. They repair them.
B. They sell them.
C. They send them to others.
D. They stop using them.
2. How many computer companies are mentioned in the second paragraph?
A. One.
B. Two.
C. Three.
D. Four.
3. According to the laws in some countries, computer companies must_______   .
A. collect and recycle most of their products
B. collect all their used products
C. repair and upgrade old computers
D. make more cheaper computers
4. What do the organizations do to solve the problem of old computers?
A. Help the computer companies to collect them.
B. Repair and send them to those who need them.
C. Help people to learn to use them.
D. Turn rubbish into useful things.
5. What is the main idea of this passage?
A. Repairing old computers.
B. Encouraging to make cheap computers
C. Recycling old computers.
D. Helping those who need computers.

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