问题 选择题

下列各组金属中,按金属活动性顺序由强到弱排列的是(  )

A.K、Al、Zn

B.Zn、Na、Hg

C.Fe、Zn、Al

D.Mg、Ca、Cu

答案

金属活动性顺序是:K、Ca、Na、Mg、Al、Mn、Zn、Fe、Sn、Pb、(H)、Cu、Hg、Ag、Pt、Au,利用此表的信息,结合活动性前大于后,可确定A正确.

故选A

阅读理解

阅读理解。

     A survey was conducted in Shanghai where interviewees were asked if they wanted to be a factory worker. One percent of all peo ple interviewed said: "YES," Wang Hongjun, a technician, said, rai sing his voice for

impressive effect." But I can tell you, only a small part of that I percent are telling the truth."

     I've met colorful people like Wang all over China. They are cynical (玩世不恭的 ) yet warmhearted, plain

spoken but smart. And many of them are confined (局限于) to work in factories.

     Wang is a top technician but also represents manual factory workers, who are China's most important

natural resource. Their en- ergy is powering China's economic boom, and their muscle is turning the wheel of

the world's factory.

     But does their unskilled labor give their life meaning? At school, did they tell their friends:" When I grow up

I want to work in a factory making socks?" Did you?

     Factory work has always been a stepping-stone from farm life to the city and a modern life. It's been

happening for centuries, but today, with our space-age technology, it's outdated. Earning 1,200 yuan,( $169)

per month working in a factory is better than that on a farm, but as Wang points out, it's not a dream career.

There should be better ways to earn your rice.

     Many modern factories no longer have production line workers. Robots do the assembly (装配). People

just do the monitoring. In this age of technology, in which China is now working smarter and not just harder,

why are people still standing in production lines?

     But life is cheap in China. So why not continue to make use of the low-cost labor situation and keep the

economy growing fast, some entrepreneurs may ask.

      But have these businessmen ever labored in a factory?

1. How many people surveyed really like to be factory workers?

A. One percent.

B. Only a small part.

C. Only a small part of that one percent.

D. The writer didn't mention it.

2. Which is NOT the writer's opinion of factory workers?

A. Cynical.

B. Unimportant.

C. Warmhearted.

D. Plain spoken.

3. The writer uses _____ to begin the passage.

A. a lot of figures

B. many examples

C. some dialogue

D. the result of a survey

单项选择题 A3型题