At the shopping mall, you probably think about spending, not saving. Think about all the lights that keep the mall bright. Think about all the water faucets in the toilet. Think about all the air cond 题目和参考答案——青夏教育精英家教网—

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At the shopping mall, you probably think about spending, not saving. Think about all the lights that keep the mall bright. Think about all the water faucets (水龙头) in the toilet. Think about all the air conditioning in summer. Saving energy is a hot topic for such a big place!

Many things at the mall use energy. Electric lights, infrared (红外感应) faucets and air-conditioners need electricity to work. One way to save energy is by keeping lights clean. More and more dust and dirt make the lights less bright. When malls keep lights clean, they can use fewer lights and keep the area just as bright, Using fewer lights means using less energy.

You step up to the water faucet. The water starts to flow. You don't have to touch a thing. Why do malls have such fancy faucets? The answer is simple. They save water. Sometimes people forget to turn the water off after they wash. Infrared faucets turn themselves off.

The…

1._______ is a hot topic for a big mall.

A. To spend money B. To save energy

C. To keep the mall bright D. To buy things

2.The best title for the passage is _______.

A. Lights, faucets and air-conditioners B. Spending less money

C. Energy saving at the mall D. A hot topic

3.What will the fourth paragraph probably talk about?

A. How to save water when using infrared faucets in the mall

B. How to save energy when using air-conditioners in the mall

C. How to save money when shopping in the mall.

D. How to save time when shopping in the mall.

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