陕西广播电视大学理工英语4unit5 形考成绩-单元自测5（10分）0答案

1、试卷总分:100 得分:100一、选择填空：阅读下面的对话或句子，从A、B、C三个选项中选出一个能填入空白处的最佳选项。 Y ou know a good schedule brings efficiency to the work._.?Not at all. I enjoyed it.I see your point.I think its a bad idea.答案:B2. Good morning, Jeff. Would you mind going to get me a cup of coffee at the Starbucks?_Thank you for reminding

2、 me.No problem! You want the usual?You must be joking.答案:B3. Oh, by the way, how was your report of the new batteries coming along?_.?Its going pretty wellJust go aheadWell, Im afraid so答案:A4.This is a highly _?new heating system.?efficiencyefficientefficiently答案:B5.The current death rate is reduced

3、 _?10% compared with that of the year of 1980.toformby答案:C6.二、阅读理解：阅读下面的短文，根据文章内容从A、B、C三个选项中选出一个最佳选项。（课外选材）When computer servers operate a complex program, they can get very hot. Cooling the servers can be costly. So researchers asked what would happen if the heat created by the servers could be cap

4、tured and used?Data centers of large Internet companies such as Google and Microsoft have thousands of computer servers. As these servers process information, they create large amounts of heat, so they need huge cooling systems. These systems send the heat into the air. The Dutch company Nerdalize t

5、hinks paying for electricity to operate the servers and then paying again to cool them is a waste of energy. So it developed a device called the e-Radiator. It is a computer server that also works as a heating source. Boaz Leupe is the chief executive officer of Nerdalize. He says the e-Radiator sav

6、es money because companies dont have to pay to cool their servers.The kilowatt（千瓦）hour you are using is used twice - once to heat the home and once to compute the clients task without the cooling overhead. He says five homeowners in the Netherlands are testing the heating device in their homes. We r

7、eimburse the electricity the server uses, and that we can do because of the computer clients on the other side, and, in that way, homeowners actually get heating for free, and computer users dont have to pay for the overhead of the data center.Jan Visser is one of the participants in the year-long e

8、xperiment. He says the amount of heat produced by the e-Radiator depends on the work being done by the computer server. He says it cannot be used as the primary source of heat. But he is ready to try it.He says if it provides enough warmth, he will be able to use his homes heating system less, which

9、 will save him money. Nerdalize says e-Radiators create heat temperatures of up to 55. It says the devices could save users up to $440 in heating costs a year.?Why did researchers ask what would happen if the heat created by the servers could be captured and used?Because computers can get very hot.C

10、omputer servers is a complex program.Cooling computer servers costs a lot of money.2.The computer servers in large Internet companies such as Google and Microsoft can .create large amounts of informationcreate large quantity of heatmanage the huge cooling systems3. Nerdalize developed the e-Radiator

11、 because .e-Radiator cost less energye-Radiator can cool the servers for freee-Radiator can create cold air for free4.According to Jan Visser, the amount of heat produced by the e-Radiator .depends on the work being processed by PCcannot be used as the homes heating systemcannot be used as the main source of heat5.T