1 . 阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式（不多于3个单词）。
What do people do with their old, out of date but still useful computers? Most people don’t know     1    to do with them. Many old computers are put away in homes. Many more     2    (throw) away as rubbish.
Finally, some companies are thinking of ways     3    (bring) down the number of old computers. Sony has agreed to help recycle old Sony products. Dell, Hewlett Packard and other     4    (company) now also take back some old computers.
In some countries, laws have been passed, too. Computer companies have to pay for collecting and     5    (recycle) their used products. And 70% of computer waste must be recycled. The idea behind the laws     6    (be) that computer companies themselves should pay for the cost. That will encourage them to make computers     7    (easy) to repair and upgrade (升级).
Yet while many people are throwing away good computers, others cannot afford     8    at all. Hundreds of organizations are working to solve this problem. They collect and repair old computers. Some also teach others how to repair computers.     9    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     10    someone else's useful things and cut down waste, too.