国家开放大学-理工英语4

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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。

试题 1

—Oh, by the way, how was your report of the new batteries coming along?

—___________________________. 

选择一项：

A.It's going pretty well

B.Just go ahead

C.Well, I'm afraid so

试题 2

—You know a good schedule brings efficiency to the work.

—___________________________.  

选择一项：

A.Not at all. I enjoyed it.

B.I see your point.

C.I think it's a bad idea.

试题 3

—Good morning, Jeff. Would you mind going to get me a cup of coffee at the Starbucks?

—___________________________

选择一项：

A.Thank you for reminding me.

B.No problem! You want the usual?

C.You must be joking.

试题 4

This is a highly ______ new heating system.

选择一项：

A.efficiency

B.efficient

C.efficiently

试题 5

It is the ability to do the job ______ matters not where you come from or what you are.

选择一项：

A.one

B. that

C.what

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 回答

 salt in fresh water used on coastal farms. As a result farmers are increasingly 回答

 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 回答

 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 回答

. “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 回答

.”

第二套

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。

试题 1

—Oh, by the way, how was your report of the new batteries coming along?

—___________________________. 

选择一项：

A.It's going pretty well

B.Just go ahead

C.Well, I'm afraid so

试题 2

—What errands did you have to do today?

—___________________________. 

选择一项：

A.I’m in no hurry

B.Done one, and another one to do.

C.You can’t be serious

试题 3

—You know a good schedule brings efficiency to the work.

—___________________________.  

选择一项：

A.Not at all. I enjoyed it.

B.I see your point.

C.I think it's a bad idea.

试题 4

He would much ______ it if you could do him the favor.

选择一项：

A.award

B.apply

C.appreciate

试题 5

The box is  hold these things.

选择一项：

A.too small not to

B.too small to

C.so small to

试题 6

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.

1.Why did researchers ask what would happen if the heat created by the servers could be captured and used?回答

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 回答

.

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 回答

.

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 回答

.

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 回答

A. The New Way to Heat Homes

B. The New Way to Cool Homes

C. Hot Computers Could Be Used for Free