哪位高人可以帮小妹做几道大学英语单选题,21-24 单选题21 There are different ways in which people try to deal with the problem of energy.One way is the greater production of common energy sources,such as coal,oil and gas.The troubl

哪位高人可以帮小妹做几道大学英语单选题,21-24 单选题21 There are different ways in which people try to deal with the problem of energy.One way is the greater production of common energy sources,such as coal,oil and gas.The troubl
哪位高人可以帮小妹做几道大学英语单选题,
21-24 单选题
21 There are different ways in which people try to deal with the problem of energy.One way is the greater production of common energy sources,such as coal,oil and gas.The trouble with these sources,however,is that they are not renewable.
Another way is energy conservation (节能),which means using energy more efficiently (有效地).In some very cold countries people build special houses to save energy.They place materials between the inside and the outside of the walls of the house to keep the cold out and the warmth in.The house is heated by the lights,the body heat of the people and the other equipment in it.
Finally,renewable energy sources are used even though they are often expensive to develop.One form of these is geothermal energy.In certain parts of the world the temperature of the earth increases thirty degrees centigrade with each kilometer down.At six kilometers,therefore,it rises to nearly two hundred degrees.To get the heat,water is pumped (压；抽) down into the rocks and back up to the surface.Heat from the earth is already used in certain countries.
The underlined words "geothermal energy" in the third paragraph mean __.
a、renewable source
b、underground source
c、heat inside the earth
d、temperature of the earth
22 Mr.Brown is not _______ at the moment,please call him later.
a、available
b、present
c、busy
d、obtainable
23 That company does not take credit cards,so customers have to pay _____.
a、dollars
b、finance
c、money
d、cash
24 There are different ways in which people try to deal with the problem of energy.One way is the greater production of common energy sources,such as coal,oil and gas.The trouble with these sources,however,is that they are not renewable.
Another way is energy conservation (节能),which means using energy more efficiently (有效地).In some very cold countries people build special houses to save energy.They place materials between the inside and the outside of the walls of the house to keep the cold out and the warmth in.The house is heated by the lights,the body heat of the people and the other equipment in it.
Finally,renewable energy sources are used even though they are often expensive to develop.One form of these is geothermal energy.In certain parts of the world the temperature of the earth increases thirty degrees centigrade with each kilometer down.At six kilometers,therefore,it rises to nearly two hundred degrees.To get the heat,water is pumped (压；抽) down into the rocks and back up to the surface.Heat from the earth is already used in certain countries.
The writer tells about the "special houses" because they__.
a、show the excellent skills of the builders
b、serve as an example of energy conservation
c、are heated by different sources of energy
d、are warmer than other types of houses

哪位高人可以帮小妹做几道大学英语单选题,21-24 单选题21 There are different ways in which people try to deal with the problem of energy.One way is the greater production of common energy sources,such as coal,oil and gas.The troubl
A A D
最后一道题不确定 怎么会问这么变态的问题?
可能是D吧
第一道题问的也很变态 跟着他的逻辑走 我选A
感觉就跟脑筋急转弯一样

A A D B