Question

3．When a computer works on a group of programs，it can get very hot．Cooling the computer can cost a lot．So some scientists wonder what would happen if the heat from the computer could be used．
  Large Internet companies （公司） such as Google and Microsoft have thousands of computers．As these computers deal with information，they produce lots of heat，so they need huge cooling systems （系統(tǒng)）．These systems send the heat into the air．
   A company in Holland （荷蘭） thinks paying to make the computers work and then p aying again to cool them are a waste of energy．So the company developed a special device-the e-Radiator．
   Boaz Leupe，head of the company，says that e-Radiator works as a heating system and saves money．He explains that the energy is used twice-once to heat the home and once to c ool the computer and that the users don't have to pay to cool their computers．
   Five homeowners in Holland are testing the heating system in their homes．
"We pay for the computer using，so，in that way，homeowners get heating for free，"Boaz says．
   Jan Visser is one of the homeowners．"If you use the computer more，the e-Radiator producers more heat，"he says，"It cannot provide enough heat if you don't use your computer often．"But he is ready to t ry it．It's a great help for his family．
  The company says e-Radiators produce heat temperatures of up to 55℃．It says the system could save its users about 440dollars a year．

42．Before the e-Radiator appears，usually the heat of a computerA．
A．is sent into the air 
B．helps the five homeowners
C．is used twice 
D．makes the computer work better
43．The e-radiator is mainly usedD．
A．to drive the computer 
B．to help Microsoft
C．to heat the computer 
D．to provide heat
44．The Chinese meaning of the word"device"in this passage is probably"C"．
A．節(jié)能  
B．實(shí)驗(yàn) 
C．儀器 
D．開關(guān)
45．The best title of the passage may be"B"．
A．An Environment Problem 
B．A New Way to Heat Homes
C．The Future Computers 
D．The Energy to Be Wasted．

Answer 1

分析 本文主要講述了科學(xué)家研究者們通過研制一種設(shè)備儀器，一方面可以給電腦散熱，另一方面利用電腦運(yùn)轉(zhuǎn)過程中所散發(fā)出來的熱量來提供熱能，給家庭供暖，從而達(dá)到循環(huán)利用能源，節(jié)省能源的目的．

解答 42．A．細(xì)節(jié)理解題．根據(jù)第二段These systems send the heat into the air，可知原來這些熱量是直接散發(fā)到空氣中，故選A．
43．D．細(xì)節(jié)理解題．根據(jù)第四段中的e-Radiator works as a heating system，可知是一個(gè)電子散熱器也是一個(gè)加熱系統(tǒng)，故應(yīng)選D．
44．C．詞義猜測題．分析device一詞所在的語境，可知在此詞后有一個(gè)破折號the e-Radiator，而其后 e-Radiator works as a heating system and saves money再介紹了這種新的發(fā)明，因此可推它的意思是：設(shè)備或儀器．故選C．
45．B．標(biāo)題判斷題．縱觀全文 e-Radiator works as a heating system and saves money，The company says e-Radiators produce heat temperatures of up to 55℃．It says the system could save its users about 440dollars a year．，可知本文主要講述了科學(xué)家研究者們通過研制一種設(shè)備儀器，利用電腦運(yùn)轉(zhuǎn)過程中所散發(fā)出來的熱量來提供熱能，給家庭供暖，從而達(dá)到循環(huán)利用能源，節(jié)省能源的目的，故選B．

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