相关习题
 0  29121  29129  29135  29139  29145  29147  29151  29157  29159  29165  29171  29175  29177  29181  29187  29189  29195  29199  29201  29205  29207  29211  29213  29215  29216  29217  29219  29220  29221  29223  29225  29229  29231  29235  29237  29241  29247  29249  29255  29259  29261  29265  29271  29277  29279  29285  29289  29291  29297  29301  29307  29315  151629 

科目: 来源: 题型:

The present financial crisis has put the world economy in a difficult        .  

A. occasion              B. case                C. background          D. situation

查看答案和解析>>

科目: 来源: 题型:

—John and I will celebrate our fortieth wedding anniversary next month.

—Oh, _________!

A. cheer up        B. well done         C. go ahead         D. congratulations

查看答案和解析>>

科目: 来源: 题型:阅读理解

A Battery’s Nightmare

Portable electronics that can be carried about easily are only as good as their batteries (电池) and, let’s face it, batteries aren’t very good, especially when compared with, say, petrol, which packs 100 times a battery’s energy into an equal space. That’s why a large group of mechanical engineers (centered at the Massachusetts Institute of Technology, but with partners at other universities and companies) are hard at work in an effort to replace batteries with a tiny engine that runs on fuel. Imagine a battery-free life! When the fuel runs out in your mobile phone, you just fill up and go.

The engine---about the size of a ten-cent coin---starts with a combustion chamber (燃烧室) that burns hydrogen. Its tiny parts are etched (蚀刻) onto silicon wafers (硅片) in the same manner that computer parts are etched onto integrated circuits (集成电路). The first engine is made up of five wafers. And since these wafers could be produced in much the same way as computer chips, they could probably be produced quite cheaply.

But the devil in all this nice detail is efficiency. Tiny engine parts don’t always behave like the bigger parts of the first engine. Something between the parts can slow down the works, according to Columbia University Professor LucFrechette, one of the engine’s designers. Extreme heat from the combustion chamber is also a problem, often leaking to other parts of the engine.

The scientists’ goal is to create an engine that will operate 10 times better than batteries operate. Frechette says that a complete system, with all parts in place and working, will be set up in the next couple of years, but commercial models aren’t likely until at least the end of the next ten years.

60. According to the passage, the title suggests that _______ .

A. batteries should be greatly improved

B. petrol will be used instead of batteries

C. the time of batteries will be gone forever

D. pollution problems caused by batteries must be solved

61. What’s the meaning of the underlined word “devil” in paragraph 3?

A. Problem     B. Advantage     C. Invention     D. Technique

62. What can we infer from the passage?

A. The new invention doesn’t need any fuel.

B. The new engine has been produced in large quantities.

C. The new invention is much cheaper than the battery.

D. The new engine needs to be improved before it’s on sale.

查看答案和解析>>

科目: 来源: 题型:

第二节:请根据句子的逻辑含义,用在模块三英语课本中所学的新词汇的正确形式填空。(共10小题;每空1 分,满分10分)

People space travel, people thought it was u___________ for anybody to go to the moon.

We s_________ Jenny and her boyfriend at the party but she didn’t notice us at all.

Twenty m________ by five equals one-hundred.

To open a new shop, one needs an official p_______.

Isaac Newton is famous for his theory of universal g_______.

Christians go to church every Sunday to attend the r_______ services.

Yang Peng and Rong Hui had their own menu in the beginning. But when they began their cooperation, their new menu became a c_________ of the original two.

Thank you for your good advice, from which I have b_______ greatly.

All the goods in that supermarket are on sale. Consumers can get 40% of d________.

He said he should take the responsibility for the failure of the plan but begged to be f________ by his boss.

查看答案和解析>>

科目: 来源: 题型:

________, what he has said _______ to be _______ as we haven’t investigated the site yet.

A. Obviously; remains; proved           `B. Fundamentally; is remained; balanced

C. Traditionally; remaining; checked       D. Unbelievably; remains; settled

查看答案和解析>>

科目: 来源: 题型:阅读理解

.

The results of the US/NATO bombing Yugoslavia are to be judged by history. I shall not be the one to do this. But being in the center of actual events that are creating that history, I cannot stay away from what is going on in my country.

  First of all, the main aim of the bombing was to prevent a human suffering in Kosovo. Today, after many days of frequent bombing, that aim is more distant than before. The bombing only brought tens of thousands of people running away from their homes, not to mention the large number of the death and injury, buildings and factories. Suppose that the US/NATO really had a wish to prevent the human suffering, they should realize by now how wrong they were when they thought the bombing would solve the problem.

  So, what’s left? Back off or ground troops? But who is going to join the ground troops? It would take at least 200,000 armed soldiers, not the 20,000 that the US/NATO have prepared in Macedonia. It should also be clear that the Serbs(塞族人) will not give up on Kosovo.

  I live under continuous bombing for more than a week now, and it doesn’t frighten me anymore. I don’t turn to the shelter at the sound of warning. It’s the thought of ground troops that frightens me. Vietnam would seem like a picnic compared to a bloodshed(流血事件) in Kosovo if the ground troops appear. Is that what the US/NATO wants?

72. Which of the following statements is true?

  A. The US/NATO really intends to stop the human suffering.

  B. The result of the war will be judged by people in Kosovo.

  C. The bombing made tens of thousands of people homeless.

  D. The continuous bombing will make the Serbs give up on Kosovo.

73. The writer is _____.

  A. an American reporter      B. a Chinese reporter

  C. a Macedonian        D. a Yugoslavian

74. What worries the writer most?

  A. The continuous bombing.      B. The coming of the ground troops.

  C. The sound of bomb warning.    D. The idea of ground troops.

75. What is the writer’s attitude towards the bombing in Kosovo?

  A. It is the US/NATO’s duty to defend Kosovo.

  B. It is wrong to solve the problem by bombing Kosovo.

  C. The aim of bombing Kosovo is to stop a human suffering.

  D. The bombing can solve the problem of Kosovo.

查看答案和解析>>

科目: 来源: 题型:

.

A clean environment can help the city bid for the Olympics, which ______ will promote its economic development.

A. in time      B. in turn       C. in return       D. in fact

查看答案和解析>>

科目: 来源: 题型:

.

 The information he gave us is more important than _____ we got ourselves.

A. one         B. those         C. that          D. the one

查看答案和解析>>

科目: 来源: 题型:

.

 My ambition _____ for a firm that develops computer software when I grow up.

      A. is to work        B. to work       C. working        D. is to be worked

查看答案和解析>>

科目: 来源: 题型:

.

Unfortunately, it was too late ____any taxi, so we had to walk home.

  A. to be     B. to have been  C. for there to be   D. for it to be

查看答案和解析>>

同步练习册答案