When building houses, people used to think about not only the climate of the areas but als

When building houses, people used to think about not only the climate of the areas but also the building materials and the fashions for their houses. However, since electricity became more and more expensive , people began to pay much more attention to the energy they could get for their houses and the new ways they could find to protect their houses from both cold and heat.
Now, houses of an old yet new type have been widely built. In some parts of the world, people share their houses with their livestock. During cold weather, they gather their cows, goats, or other animals and keep them on the first floor of their houses. The reasons are that the animals can be protected from the cold and that they can help to heat the houses as well. The body heat given off by the animals rises to the second floor of the houses, where people live. By sharing their houses with their livestock, people gain a source of heat.
People who live in or near cities do not usually keep livestock. However, home builders use the fact that heat rises. This natural law can be used in building houses in these areas, instead of keeping livestock on the first floor builders fill it with large rocks. As they are open to the sun’s rays during cold weather, these rocks take in heat. They also give off the heat, and, of course, the warm air rises into the living areas of the houses. So these houses are energy saving.
House building becomes a great challenge to building designers and energy engineer. They try to meet this challenge by learning from old traditions and by using modern technology. And someday in the future, people will be able to live in more energy saving houses.
【小题1】What did people begin to consider as electricity was no longer cheap?A．The climate of their areas.B．The energy for their houses.C．The fashions for their houses.D．The building materials for their houses.【小题2】People in some areas gain a source of heat by .A．keeping their livestock downstairsB．protecting their livestock from the coldC．sharing their houses only with their cowsD．living on the second floor with their livestock【小题3】The underlined words “natural law ” in the third paragraph refer to the fact that .A．heat raises the temperature in the housesB．heat goes in the upward direction C．heat goes up if temperature is raisedD．heat increases the temperature of rocks【小题4】From the passage, we can conclude that .A．people will no longer consider building materials in the futureB．energy saving buildings will become more popular in the future C．almost all people will move into the houses heated by large rocksD．energy engineers will devote themselves only to modern technology【小题5】What is the meaning of the underlined word “livestock” ? .A．animals raised especially for economical benefitsB．furnitureC．plants kept in the houseD．general appearance of the whole familyB

(答案→)B 解析：本文介绍了人们在建设房屋的时候考虑的节能的话题，人们运用现代的新技术有了多种节能的方法。【小题1】B 细节题。根据第一段4,5,6行people began to pay much more attention to the energy they could get for their houses and the new ways they could find to protect their houses from both cold and heat.说明人们开始考虑房屋的能量的问题，故B正确。【小题2】A 细节题。根据第二段3,4,5行During cold weather, they gather their cows, goats, or other animals and keep them on the first floor of their houses. The reasons are that the animals can be protected from the cold and that they can help to heat the houses as well说明人们把牲畜养在一楼，在冬天的时候可以给楼上的人提供能量，故A正确。【小题3】B 根据本段前三行People who live in or near cities do not usually keep livestock. However, home builders use the fact that heat rises. This natural law can be used in building houses in these areas, instead of keeping livestock on the first floor builders fill it with large rocks.说明这里的natural law就是指上一句the fact that heat rises这个自然规律，故B正确。【小题4】B 推理题。根据文章最后三行They try to meet this challenge by learning from old traditions and by using modern technology. And someday in the future, people will be able to live in more energy saving houses.说明这种情况在未来会很普遍，越来越受欢迎，故B正确。【小题5】A 推理题。根据接下来的三行During cold weather, they gather their cows, goats, or other animals and keep them on the first floor of their houses. The reasons are that the animals can be protected from the cold and that they can help to heat the houses as well.说明livestock就是指人们喂养的牲畜，故A正确。

我也是这个答案