问题补充：
What do people do with their old, out of date but still useful computers? Most people don’t know how to deal with them. Many old computers are put away. Many more are simply thrown away as rubbish.
Finally, some companies are thinking of ways to bring down the number of old computers. Sony has agreed to help recycle old Sony products（产品）. Dell, Hewlett Packard and other companies now also take back some old computers of their own brands.
In some countries, laws have been passed, too. Computer companies 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 for the cost. That will encourage them to make computers which are easier and cheaper to repair and upgrade（升级）.
Yet many people are throwing away good computers, while others cannot afford them at all. Hundreds of organizations are working on this problem. They collect and repair old computers. Some also teach others how to repair computers. These repaired computers then go to schools, charities（慈善团体) or 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 waste, too.
根据短文内容，选择正确答案。（10分）
【小题1】What do many people do with old computers?
A．They sell them. B．They send them to others. C．They stop using them.
【小题2】How many computer companies are mentioned in the second paragraph?
A．One. B．Two. C．Three.
【小题3】According to the laws in some countries, computer companies must .
A．recycle most of their products
B．collect all their used products
C．make more cheaper computers
【小题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.
【小题5】What is the main idea of this passage?
A．Repairing old computers.
B．Encouraging to make cheap computers.
C．Recycling old computers.C
答案：
(答案→)C
解析：这篇短文主要讲述的是我们该如何处理旧电脑。有些国家通过法律，让电脑公司出钱回收旧的产品，还有些组织把旧电脑修理之后，再送给需要他们的人。
【小题1】细节理解题。根据短文的第一段What do people do with their old, out of date but still useful computers? Most people don’t know how to deal with them. Many old computers are put away. Many more are simply thrown away as rubbish.可知，对于旧的、过时了的电脑，大多数人都不知道该如何处理，这样的电脑被搁置起来，或像垃圾一样被扔掉。A选项的卖掉和B选项的送给别人，在文中都没有提到。故选C。
【小题2】细节理解题。根据文章第二段的内容可知，在这一段中一共提到了三家电脑公司，他们是Sony、 Dell和 Hewlett Packard。故应选C。
【小题3】细节理解题。根据短文第三段的内容Computer companies have to pay for collecting and recycling their used products. And 70% of computer waste must be recycled可知，在一些国家里，根据法律，电脑公司必须付钱来收集和回收他们用过的产品。故A选项与原文的意思一致。
【小题4】细节理解题。根据短文最后一段They collect and repair old computers. These repaired computers then go to schools, charities（慈善团体) or people who need them可知，有些组织中的人们收集旧电脑并修理，然后把它们送给学校、慈善机构或需要他们的人。故选B。
【小题5】主旨大意题。这篇短文主要讲述的是如何来处理旧电脑的事，有些国家通过法律让电脑公司付钱回收用过的产品。还有些组织中的人们把旧电脑修理了之后，再送给需要他们的人。所以整篇短文都是围绕回收利用旧电脑展开的。故C选项回收电脑是最符合文意的。故选C。
