24. Labeling schemes help save ………..
A. energy B. money C. A and B are correct
25………..last eight time longer and use one fourth of the electricity of standard bulbs
A. ordinary 100 – watt light bulbs B. Energy –saving bulbs C. Saving- energy bulbs
III. Fill in each numbered blank with one suitable word or phrase.
Some of us use water (26)……… , water is quite necessary for us. We can not (27)
………..without water .And water on the Earth is now ( 28 ) ………seriously because of the
chemicals from factories. If we pollute the water , we will have no fresh water to use. So we have
to protect the water source and save it . We must remember to (29)………. the faucets after use
because dripping faucet can waste 500 liters of water a month.
In addition, We should also save electricity, we try to(30)……… the amount of electricity we
use. We switch off the fans and the lights before going to bed or out.
In conclusion, Saving water and electricity is saving money.
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