Sometimes, the simplest ideas are the best. For example, to absorb heat from the sun to heat water, you need large, flat, back surfaces. One way to do that is to build those surfaces specially, on the roofs of buildings. But why go to all that trouble when cities are full of black surfaces already, in the form of asphalt(柏油) roads ?

Ten years ago, this thought came into the mind of Arian de Bondt, a Dutch engineer. He finally persuaded his boss to follow it up. The result is that their building is now heated in winter and cooled in summer by a system that relies on the surface of the road outside.

The heat-collector is a system of connected water pipes. Most of them run from one side of the street to the other, just under the asphalt road. Some, however, dive deep into the ground.

When the street surface gets hot in summer, water pumped through the pipes picks up this heat and takes it underground through one of the diving pipes. At a depth of 100 metres lies a natural aquifer(蓄水层) into which several heat exchangers(交换器)have been built. The hot water from the street runs through these exchangers, warming the groundwater, before returning to the surface through another pipe. The aquifer is thus used as a heat store.

In winter, the working system is changed slightly. Water is pumped through the heat exchangers to pick up the heat stored during summer. This water goes into the building and is used to warm the place up. After performing that task, it is pumped under the asphalt and its remaining heat keeps the road free of snow and ice.

Which of the following is true according to the first two paragraphs ?

Arian de Bondt got his idea from his boss.

Large, flat, black surfaces need to be built in cities.

The Dutch engineer’s system has been widely used.

Heat can also be collected from asphalt roads.

For what purpose are the diving pipes used ?

A. To absorb heat from the sun.              B. To store heat for future use.

C. To turn solar energy into heat energy.       D. To carry heat down below the surface.

From the last paragraph we can learn that __________.

   A. some pipes have to be re-arranged in winter

   B. the system can do more than warming up the building

   C. the exchangers will pick up heat

   D. less heat may be collected in winter than in summer

What is most likely to be discussed in the paragraph that follows ?

A. What we shall do if the system goes wrong. 

B. What we shall do if there are no asphalt roads.

C. How the system cools the building in summer.

D. How the system collects heat in spring and autumn.

A young executive was traveling down a neighborhood street.He was watching for kids rushing out from between parked cars and slowed down when he thought he saw something.As his car passed,no children appeared.Instead,a brick smashed into his door! He slammed on the brakes(make his car stop).The angry driver then jumped out of the car, caught the nearest kid and pushed him up against a parked car,shouting,“What was that all about and who are you?”

The young boy was apologetic.“Please,Mister...Please,I’m sorry…I didn’t know what else to do.I threw the brick because no one else would stop…”

With tears dripping down his face,the youth pointed to a spot just around a parked car.“It’s my brother,”he said.“He fell out of his wheelchair and I can’t lift him up.”

    Now sobbing(crying silently),the boy asked the executive,“Would you please help me get him back into his wheelchair? He’s hurt and he’s too heavy for me.’’

   Moved beyond words,the driver tried to swallow the rapidly swelling lump in his throat.He hurriedly lifted the boy back into the wheelchair,then took out his fancy handkerchief and dabbed(a light touch) at the fresh scrapes and cuts.A quick look told him everything was going to be okay.“Thank you and may God bless you.”the grateful child told the stranger.

Shaken up for words,the man simply watched the little boy push his wheelchair—bound brother down the sidewalk toward their home.

   God whispers in our souls and speaks to our hearts.Sometimes when we don’t have time to listen,he has to throw a brick at us.Don’t go through life so fast that someone has to throw a brick at you to get your attention!

The executive slowed down because______.        .

A.he saw a boy throw a brick to his car         B.he saw a boy rush out from between cars

C.he was afraid some boys suddenly rushed out  D.a brick smashed into his door

The boy threw the brick to the car in order to_________.

A. disturb the driver on purpose    B.destroy the car of the stranger

C.ask someone to drive him home D.stop someone to help him

Knowing the reason why the boy threw the brick at his car the executive must feel       .

A.sympathized and excited   B.regretful and sympathized

C.ashamed and regretful     D.angry and regretful

After the boy’s brother feIl off his wheelchair,        .

A.the boy threw bricks at several cars  B.the boy tried to stop several cars

C.the boy’s brother was hurt seriously  D.the boy’s brother wanted to stop a car

From the last paragraph we can learn that         .

A.you shouldn’t drive so fast that someone throws at you

B.it is common to throw a brick at a car running too fast

C.you can’t go through your life without a brick throwing at you

D.you should pay more attention to others and help them

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