The reason why a desktop computer uses more energy than a laptop computer is that________.

试卷相关题目

• 1When does a computer consume the most energy、

  A.When we let it remain idle.

  B.When we use it to do complex calculations.

  C.When we use it to type some documents and e-mail.

  D.When we use it for surfing the Internet.

  开始考试点击查看答案
• 2Which of the following is NOT mentioned in the text that contributes to the different amount of energy a computer consumes、

  A.Whether it is a laptop or a desktop computer.

  B.What kind of work the computer is dealing with.

  C.The choice of how you use your computer.

  D.Whether the operating systems are new.

  开始考试点击查看答案
• 3If sleep mode goes wrong，what will probably happen to your computer、

  A.It will consume as little energy as possible.

  B.It is more likely to be damaged by a virus picked up from the Internet.

  C.It will have to be rebooted when used again.

  D.It has to be shut down and unplugged.

  开始考试点击查看答案
• 4It can be learned from the last two paragraphs that cloud whitening ________.

  A.helps us learn more about global warming

  B.means cutting CO2 emissions

  C.is the best way to deal with climate change

  D.can’t stop global warming basically

  开始考试点击查看答案
• 5Compared to other projects, cloud whitening ________.

  A.has a greater effect on volcanoes

  B.will bring more benefits

  C.will benefit man’s health most

  D.can reduce temperatures in a better way

  开始考试点击查看答案
• 6Which of the following is implied in the first two paragraphs、

  A.Frequent starting and stopping can damage a computer.

  B.A computer’s longevity depends more on the proper way you use it.

  C.A virus picked up from the Internet is likely to damage a computer.

  D.The more often you use a computer，the more smoothly it works.

  开始考试点击查看答案
• 7According to the passage, the credit card makes its owner  ________.

  A.withdraw as much money from the bank as he wishes

  B.obtain more convenient services than other people do

  C.enjoy greater trust from the storekeeper

  D.cash money where he wishes to

  开始考试点击查看答案
• 8From the last sentence of the first paragraph we learn that ________.

  A.in the future all the Americans will use credit cards

  B.nowadays many Americans do not pay in cash

  C.it is now more convenient to use credit cards than before

  D.credit cards are mainly used in the United States today

  开始考试点击查看答案
• 9The phrase “ring up sales” most probably means ________(Par

  A.2).A.make an order of goods

  B.record sales on a cash register

  C.call the sales manager

  D.keep track of the goods in stock

  开始考试点击查看答案
• 10What is this passage mainly about、

  A.Approaches to the commercial use of computers.

  B.Conveniences brought about by computers in business.

  C.Significance of automation in commercial companies.

  D.Advantages of credit cards in business.

  开始考试点击查看答案