·Do not cover or block your smoke detector in any way.

·If a smoke detector sets off an alarm and there is no fire or smoke, inform your hall staff.

1.What is the main duty of the fire prevention professionals?

A.To provide part-time jobs for students. B.To lead the students to the nearest exits.

C.To check and maintain fire prevention equipment.

D.To train teachers to be fire prevention professionals.

2.What do the automatic fire alarm systems include?

A.Pipes and smoke detectors. B.Smoke detectors and sprinklers.

C.Fire alarm pull stations and pipes. D.Sprinklers and fire alarm pull stations

3.In a fire drill, the students should _______.

A.rush quickly to a lift B.gather at the nearest hall

C.shut the door and leave at once D.wait for instructions in the hall

4.What do we know about the use of fire extinguishers?

A.Using them wrongly results in punishment. B.Irresponsible use of them can damage them.

C.Improper use of them can destroy the apartment.D.Using them without a trainer present is forbidden.

3、 This activity will melt away the pounds,build up your body and leave you on an emotional high. Yet the form of exercise destined to become the fitness trend of the year does not require gym membership or a personal trainer. All you need to do is walk.

"Walking is a refreshing alternative to complicated aerobic(有氧的) routines and overpriced gym memberships, " says personal trainer Lucy Knight, the author of a new book on the exercise. "It is free, enjoyable and already a part of everyday life. All you need to do is correct your technique, walk faster and for longer and you will lose weight. " There is much evidence of the benefits of walking. Scientists at the University of Pittsburgh recently revealed that overweight people who walked briskly(轻快地) for 30 to 60 minutes a day lost weight even if they didn't change any other lifestyle habits. Another American study found that people who walked for at least four hours a week gained less weight than couch potatoes as they got older. Researchers at the University of Massachusetts Medical School found that people who walked every day had 25 percent fewer colds than those who sat a lot. Best of all, walking makes you feel good about