Don’t forget thanks when other people help you. A. accept B. to accept C. say D. to say 题目和参考答案——青夏教育精英家教网—

题目内容

13. (2014 •河北) Don’t forget thanks when other people help you.

A. accept B. to accept

C. say D. to say

13. D

13. D 解析：don't forget to do sth.意为“不要忘记做某事”，先排除A和C.句意：当别人帮助你时，不要忘记道谢。再根据say thanks的固定搭配可知答案为D.

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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 (系统) . These systems send the heat into the air.

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Boaz Leupe,head of the company,says that the 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 cool 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 produces more heat, ”he says. “It cannot provide enough heat if you don't use your computer often. ” But he is ready to try it. It's a great help for his family.

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