Schools across the country are turning green. So-called green schools are built from recycled and environmentally friendly materials. They are designed to use less energy than traditional school buildings. In the next few years, Southern California alone plans to open 150 green schools. Studies have shown that there are good reasons to go green, including good air quality that cuts down on asthma(哮喘)attacks and airborne germs that can cause illnesses. Students learn better in classrooms that have natural light and ideal temperatures. Green schools have lower energy bills. Go On, Get Green
Here’s how to save energy and help the environment.
Light Savers
Turn off the lights in a room when it is not in use. This bright idea can produce big savings on energy costs. Some schools use sensors that automatically shut off the lights when there is no motion in a room.
Heat Smart
Your school’s thermostat(温度调节器)should be set to 78℃in warm weather and 68℃in cooler weather. The temperature can be even farther from the comfort zone at night and on weekends, when no one is using the school building.
Reuse, Recycle
Reuse paper, cans, bottles and batteries. Use both sides of notebook paper. Carry a lunch box rather than a paper bag. Recycle whatever you can reuse.
Don’t Drip(滴水)
Leaky taps can waste large amounts of water. A small, steady flow can add up to hundreds of gallons a year. Report drips if you see them.
73. What is the best title for the passage?
A. Green Schools.    B. Reusing and Recycling.    C. Light Savers.   D. No Dripping.
74. Some schools are called green schools because ______.
A. they are built from new materials          B. they are painted green
C. there are more trees in these schools        D. they are built from recycled materials
75. All of the following are advantages of a green school EXCEPT __________.
A. the air quality of the school is great
B. the temperature is comfortable
C. the school has lower energy bills than a traditional school
D. it is more beautiful than a traditional school
76. In a green school, students will ________.
A. use both sides of their notebook paper    B. not use lights at all
C. use paper bags to carry food            D. get sick more easily