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Every human being, no matter what he is doing, gives off body heat. The usual problem is how to dispose of it. But the designers of the Johnstown campus of the University of Pittsburgh set themselves the opposite problem-how to collect body heat. They have designed a collection system which utilizes not only body heat, but the heat given off by such objects as light bubs and refrigerators as well. The system works so well that no conventional fuel is needed to make the campus's six buildings comfortable.
Some parts of most modern buildings-theaters and offices as well as classrooms are more than amply heated by people and lights and sometimes must be air-conditioned even in winter. The technique of saving heat and redistributing it is called "heat recovery." A few modern buildings recover heat, but the University's system is the first to recover heat from some buildings and re-use it in others.
Along the way, pit has learned a great deal about some of its heat producers. The harder a student studies, the more heat his body gives off. Male students emit more heat than female students, and the larger a student, the more heat he produces. It is tempting to conclude that the hottest prospect for the Johnstown campus would be a hardworking, overweight male genius.
1. Until recently, body heat has caused problems because it _____.
A. was difficult to collect
B. came in a variety of forms
C. was difficult to get rid of
D. tended to be absorbed by physical objects
參考答案：C 答案是開頭的第二句：The usual problem is how to dispose of it. Dispose of “處理解決”。
2. Which of the following is true of the heating system of the Johnstown campus?
A. The heat is supplied by human bodies only.
B. The heat is supplied by both human bodies and other heat-emitting objects.
C. The heat is supplied by both human bodies and conventional fuel.
D. The heat is supplied by human bodies, other heat-emitting objects, and conventional fuel.
參考答案：B 答案在第一段的第三句中。他們設計了一種收集系統，它不但利用身體的熱，還收集由燈泡、冰箱等散發出來的熱。有了這兩種熱能，作者指出在校園中已無需任何conventional fuel。
phrase "even in winter" (in line 8) most nearly means _____.
A. if the winter is especially warm
B. during all of the year except the winter
C. in the winter as well as in other seasons
D. during the evenings in the winter
參考答案：C 第二段中說：大多數現代化的大樓有些部分-戲院、辦公室以及教室是用人體和燈光的熱來供熱的，有時候甚至在冬天的`空調也是由它們來供熱。Even意爲“甚至”。
4. The phrase "heat recovery" refers to a _____.
A. method of concealing the source of heat
B. special form of air conditioning
C. supplementary hot water system
D. way of reclaiming and re-using heat
參考答案：D 回收再利用熱能。此題考察學生對全文的總結能力，以及reclaim和re-use的詞義。
5. According to the passage which of the following would produce the LEAST amount of heat?
A. A fat female who studies hard.
B. A thin female who does not study.
C. A fat male who does not study.
D. A thin male who studies hard.
參考答案：B 最後一段倒數第二句說：男學生髮出的熱量比女生髮出的熱量多，學生體重越重產生的熱量越多。學習刻苦的比學習不刻苦的產生的熱量多。所以最瘦的女生產生的熱量最少。
