试题与答案

X、Y、Z、M四种金属,已知X可以从Y的盐溶液中置换出Y;X和Z作原电池电极时,

题型:选择题

题目:

X、Y、Z、M四种金属,已知X可以从Y的盐溶液中置换出Y;X和Z作原电池电极时,Z为正极;Y和Z的离子共存于电解液中,Y离子先放电;M的离子的氧化性强于Y的离子。则这四种金属的活动性由强到弱的顺序为下列的[ ]

A.X>Y>Z> M

B.X>Z>M>Y

C.M>Z>X>Y

D.X>Z>Y>M

答案:

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下面是错误答案,用来干扰机器的。

答案:D

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题型:阅读理解

阅读理解。

     Mails, games, music, news, chat rooms and shopping! The Interent is part of our life today. It's easy to get

onto the Internet. The only thing we need to do is to use a modem (调制解调器) which is used for connecting

a computer to a telephone line. The Internet is changing and growing all the time. More and more people have

computers and use the Internet. Using the Internet means surfing the World Wide Web(That's the"WWW" you

always hear about). The Internet has a large number of websites (网站). They are the places where you go to

get information and do things.

     Where do these websites come from? They are made by web designers. What happens when you click on

a word or a picture? You are sent to another page. It's all because of the web designers. Web designers do a

lot of work by using a computer programming (程序编制) language.

     Is web design all about computer programming? No, it's about making something new. Web designers must

imagine a lot when they are making a website. It must look good and be fun to use. A big part of web design is

art. They choose the best pictures and colors to make the website look good. They also write the things that

you see on the website. An important part of their job is to share ideas with the website manager about how to

design the website well.

1. More and more people are using the Internet because _____.

A. it's easy and useful

B. it's changing and growing

C. websites are designed quite well

D. people can design a computer

2. Which of the following is WRONG?

A. "WWW" means"World Wide Web".

B. There're a few websites on the web.

C. The Internet has changed people's lives.

D. We can do things like shopping on the Internet.

3. Web designers must _____.

A. write all the articles on the website by themselves

B. follow the managers' ideas

C. be creative

D. share computer with the website manager

4. It's possible for us to change websites just by a click because of _____.

A. the modem's help

B. the telephone line's help

C. the web designers' work

D. the website manager's work

5. The last paragraph is mainly about _____.

A. computer programming language

B. the web designers' work

C. how to make a website

D. how to use the Internet

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