Unit 5 Self-test
您好，在完成本单元的学习后，请您完成以下练习题。本练习题满分100分，将按10%计入形考成绩。
您可以反复练习多次，系统默认记录最高分。点击“提交所有答案并结束”按钮视为练习1次，无时间和次数限制。
中途退出，保存答案已作出选择的题目会自动保存答案，下次进入后可对做过的题目进行修改，并继续上次答题，不计入练习次数。
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。
1．—What errands did you have to do today?
—___________________________.
I’m in no hurry
Done one, and another one to do.
You can’t be serious
2．—Good morning, Jeff. Would you mind going to get me a cup of coffee at the Starbucks?
—___________________________
Thank you for reminding me.
No problem! You want the usual?
You must be joking.
3．—Jeff, I’d appreciate it if you could help me with the opening speech I’m giving next week.
—___________________________, but I’ll have some time between five and six p.m.
Don’t mention it
Yes, it’s so quiet as we expected
Well, it’s pretty busy this morning
4．—You know a good schedule brings efficiency to the work.
—___________________________.
Not at all. I enjoyed it.
I see your point.
I think it’s a bad idea.
5．—Oh, by the way, how was your report of the new batteries coming along?
—___________________________.
It’s going pretty well
Just go ahead
Well, I’m afraid so
6．He would much ______ it if you could do him the favor.
award
apply
appreciate
7．He is still a ______ in handling such things.
green hand
visitor
adult
8．This is a highly ______ new heating system.
efficiency
efficient
efficiently
9．______ thinking is the heart of the artistic design.
Creative
Strict
Hateful
10．It ______me that I had a choice.
bit
pick
hit
11．It is the ability to do the job ______ matters not where you come from or what you are.
one
that
what
12．It is _______ an interesting story that I want to read it again.
so
such
many
13．The current death rate is reduced _______ 10% compared with that of the year of 1980.
to
form
by
14．The box is hold these things.
too small not to
too small to
so small to
15．二、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 captured 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 thinks 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 saves money because companies don’t 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 client’s task without the cooling overhead.” He says five homeowners in the Netherlands are testing the heating device in their homes. “We reimburse 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 don’t have to pay for the overhead of the data center.”
Jan Visser is one of the participants in the year-long experiment. 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 home’s heating system less, which 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? 1
A. Because computers can get very hot.
B. Computer servers is a complex program.
C. Cooling computer servers costs a lot of money.
2.The computer servers in large Internet companies such as Google and Microsoft can 2 .
A. create large amounts of information
B. create large quantity of heat
C. manage the huge cooling systems
3. Nerdalize developed the e-Radiator because 3 .
A. e-Radiator cost less energy
B. e-Radiator can cool the servers for free
C. e-Radiator can create cold air for free
4.According to Jan Visser, the amount of heat produced by the e-Radiator 4 .
A. depends on the work being processed by PC
B. cannot be used as the home’s heating system
C. cannot be used as the main source of heat
5.The best title for this passage is 5
A. The New Way to Heat Homes
B. The New Way to Cool Homes
C. Hot Computers Could Be Used for Free
(1)
(2)
(3)
(4)
(5)
16．二、阅读理解：阅读下面的对话，选择合适的内容将对话补充完整。
（教材对话原文）
Jeff: Morning, Roger.
Roger: Good morning, Jeff. 1 Would you mind going to get me a cup of coffeeat the Starbucks across the street? I know you just got here, but I would really appreciate it.
Jeff: 2
Roger: Yes. Impressed that you remember!
Jeff:Your flavour I never forget.
Jeff leaves to go get a coffee, and then comes back with it.
Jeff: Here you go, Roger.
Roger: Thanks. Oh, Jeff, 3 with the opening speech I’m giving next week at our company.
Jeff: Well, it’s pretty busythis morning, but I’ll have some time between five and six p.m. Would that be okay?
Roger: 4 I’m going to talk about the new energy storage material, and I think you have an excellent grasp of the subject.
Jeff: Thank you.
Roger: Oh, by the way, 5 ?
Jeff: It’s going pretty well.
Roger: I’d like to see it sometime. Do you think you could get it on my desk by 4 p.m. today?
Jeff: No problem. I’ll get it to you.
Roger: Great. Have a good one, Jeff.
Jeff: You too.
A. how was your report of the new batteries coming along?
B. I’d appreciateit if you could help me
C. No problem! You want the usual?
D. It’s good to see you.
E. Yes, that would be great.
(1)
(2)
(3)
(4)
(5)
17．二、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。
Climate change has caused a rise in sea levels. This has increased 1 salt in fresh water used on coastal farms. As a result farmers are increasingly 2 to use fields close to the sea.
Scientists call this process “salinization” which means a mixture of salt and water. Salinization is reducing the world’s irrigated lands 3 1 to 2 percent every year.
But a farmer in the Netherlands is now using a mixture of sea and fresh water to grow healthy and tasty vegetables. Marc Van started with an 4 . “We put in a lot of plants in the fields and then we put in, put them in fresh water and in sea water and all the varieties between it, and then we see which variety is surviving and which variety is 5 .”
(1)
(2)
(3)
(4)
(5)
