题目内容
Sometimes, the simplest ideas are the best. For example, to absorb heat from the sun to heat water, you need large, flat, black 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 rub 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 ran 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, warning the ground-water, 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?
A. Arian de Bondt got his idea from his boss.
B. Large, flat, black surfaces need to be built in cities.
C. The Dutch engineer's system has been widely used.
D. 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 from the street surface
【小题1】D
【小题2】D
【小题3】B
解析:
略
Robopets (机器人宠物) are high-tech robots programmed to play. They can communicate with their owners and recognize their voices. Each one will develop a different “personality”. They can be a lot of fun to play with, but these robots can also be helpful to people who are sick and can’t look after a real animal. Many doctors believe that when a person is happy and laughing, their body recovers faster. A robopet might be just what the doctor ordered.
| Dear Expert: I was asked to retrieve my 14-year-old daughter from a five-day camping trip.She was suffering from such severe separation anxiety,her teacher thought she should go home.She hadn’t eaten anything and had refused to participate in any activities.The thing is my daughter is extremely bright and has many friends;she organized a few friends into a band,and it belongs to several school clubs.She’s just always had an extreme fear of being away from home.I don’t want her to miss out on other trips. Yours truly, Jonathan |
| Dear Jonathan: Sometimes kids can push through homesickness,but in other instances they become hurt mentally and develop greater anxiety around outings,which can worsen and prolong(延长) the problem.Separation anxiety can be the result of many complex interactions some genetic(遗传的) and some learned. People with high anxiety tend to be fearful and worried, ever when the sense of threat is minimum（ 最低程度）.Lots of talented,creative and successful people are exceedingly anxious. I believe your daughter is bright,active and popular,but simply can’t do well outside her home base.My suggestion is to take things in small steps,so your daughter can experience success,and always have a fallback(退却) plan if she needs it.For instance,she can plan an overnight with a friend,but assure her it’s no big deal to pick her up at midnight if she changes her mind. What’s important is to recognize the fear,and make plans to deal with whatever may cause distress.In other words,don’t try to talk your daughter out of her fears,equip her to master them.This way she’ll eventually gain the confidence to go on further trips. Expert |
What does the underlined word“retrieve”mean?
A.Go with someone. B.Take someone back.
C.Separate from someone. D.Miss someone.
Which of the following statements is TURE?
A. Separation anxiety is the result of different reasons.
B. Separation anxiety is genetic.
C.Only creative people suffer from separation anxiety.
D.Separation anxiety is of the same level.
When can’t the 14-year-old daughter function well?
A.When organizing a band at school.
B. When she is not far away from her home.
C.When she is in a club.
D. When she is camping far away from home.