试题与答案

目前，我国在对纳米技术的研究方面已经跻身世界前列，尤其是对“超级纤维”﹣﹣碳纳米

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题型：填空题

题目：

目前，我国在对纳米技术的研究方面已经跻身世界前列，尤其是对“超级纤维”﹣﹣碳纳米管的研制上走在世界前沿，已知我国已研制成的碳纳米管的强度（可理解为“单位面积能承受的最大拉力”）是钢的100倍，而碳纳米管的密度仅为钢的1/6，假设有两根足够长的细绳，一根由上述碳纳米管制成，一根由钢制成，将它们分别在地面附近竖直悬挂起来，设它们能承受自身重力而不断裂时的最大长分别为L纳米与L钢，则L纳米/L钢=        。

答案：

考点：新材料及其应用（半导体、超导体、纳米材料、绿色能源、记忆合金等）
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题型：阅读理解

阅读理解。

     We use the Internet for many things: business, shopping, writing letters, talking to people, finding

information and so on. In recent years a new kind of English has grown on the Internet. There's no real word

for it yet, so we'll call it e-talk. People don't like typing too much. To save time, they turn phrases into a few

letters called acronyms. Acronyms are often used in chat rooms. Some of them are.

     BTW (by the way)

     BRB (be right back)

     LOL (laughing out loud)

     IMO (in my opinion)

     People also use many abbreviations (缩写), They are shortened forms of words. Some common

abbreviations are:

    Info (information) purer (computer)

    Pie (picture) sec (second)

    We usually don't see people when we communicate (交流) on the Net, so people have new ways to show

feelings. Most people use their keywords to draw"feeling". such as:

    :-)( happy) :-p(joking) :-( (sad) :-0(surprised)

     These days, many forums (论坛) have picture feelings. For example, 

    

     There are even whole new words, like "newbie's" (someone who is new on a chat board or forum).

It takes time for people to get used to (适应) e-talk. Also, different groups on the Net have their own special

ways of communicating. Newbie's have to ask other people what they mean. As the Internets grows, e-talk

will continue to grow and change.

1. What does the underline "acronyms" mean?

A. 网友

B. 聊天室

C. 首字母缩写词

2. Why do people type acronyms?

A. to show their feelings.

B. Because people can type them quickly.

C. In this way newbie's won't understand them.

3. What does "BTW, my purer is not working well.:-("mean?

A. The person is angry at somebody.

B. The person is happy about getting a new computer.

C. The person is sad that his computer is having problems.

4. E-talk wills probably ______.

A. keep changing.

B. be easy by people on the telephone

C. be used by people on the telephone

5. What's the best title for this passage?

A. E-talk language

B. Picture Feelings

C. How to Use Abbreviations

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