1. 阅读短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。

    You may know several kinds of police, traffic police and street police. But have you ever heard of energy-saving (节能) police?

    A group of 22 new policemen went to work in Beijing. They went around the city to see the use of energy in hotels, office buildings, shopping centres and other public places. One of their aims is to make sure that these places have set their air conditioners (空调) no cooler than 26℃.

    They also set up a special phone hotline so that people can tell them which building doesn't follow the rule.

    "If everyone sets the air conditioner at 26℃, Beijing will save 400 million kilowatt-hours of electricity in one summer. That's one third of all the usage of the city in the season, said an advertisement."

    A show was held in Beijing last week on energy-saving technology (技术) and productions to introduce a green life to the public. Environmentally—friendly machines, like a machine that helps collect used bottles, have attracted lots of attention.

    "We want to tell people that there are some ways to protect the environment. Each of us can find effective (有效的) ways to do it in our daily life," said Liu Qianguang, an environmental engineer.

1. （1） The job of the energy-saving policemen is ________.

   A . to set the air conditioner cooler B . to check (检查) the use of energy in public C . to set up a special phone hotline D . to produce (生产) more energy
3. （2） Beijing will use ________ million kilowatt-hours of electricity in one summer.

   A . 1, 200 B . 800 C . 400 D . 133
5. （3） The phrase "Environmentally—friendly" most probably means "________".

   A . 友好的 B . 环境友好的 C . 自动的 D . 有吸引力的
7. （4） According to Liu Qianguang, ________.

   A . there are few ways to protect the environment B . it's difficult to find good ways to save energy C . it's easy for us to do something good for the environment D . we can save only a little energy in our daily life