问题 单项选择题

Which of the following most accurately describes the impact of a price ceiling set below the equilibrium price for a good and a minimum wage set above the equilibrium wagePrice ceiling Minimum wage ()①A. Shortage Decreased unemployment ②B. Surplus Increased unemployment ③C. Shortage Increased unemployment

A. ①

B. ②

C. ③

答案

参考答案:C

解析:

A ceiling that is below the equilibrium price for a good will result in a shortage characterized by a quantity demanded that is greater than the quantity supplied. A minimum wage leads to increased unemployment as firms tend to substitute capital for labor. Even though there are often a large number of unemployed low-skilled workers who may be willing to work at a wage lower than the minimum wage, firms cannot legally hire them.

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     What will you be doing when you are 26 years o1d? Studying at university or working for a living? Take

a look at what Albert Einstein was doing at the age of 26.

    100 years ago, Einstein was working in Switzerland. His hobby was physics. Without much money or

help, he wrote five papers (论文) for a physics magazine. Three of these greatly changed the study of

physics and our understanding of space, time, light and matter (物质). His most famous work is on the

Theory of Relativity (相对论). Einstein was given the Nobel Prize (诺贝尔奖) for it is discoveries. Although

he did many other things later, 1905 has been called Einstein's "Year of Wonders (奇迹)". It has been 100

years since then. Because of this, the UN has named 2005 me World Year Of Physics.

     Fifty years after Einstein's death, a question is asked, "Will there ever be another Einstein?" It may take a

1ong time. After all, Einstein was born more than 200 years after Sir Isaac Newton, another great scientist.

Besides, physics is a different field (领域) now, and education is different, too. Even if you can't be the

next great scientist, it is still helpful to remember some of the things that made Einstein great. He thought

independently (独立地) and read widely. He left us with a formula (公式) for life: If A is a success in life,

men A=X+Y+Z.X is work; Y is play; and Z iskeeping your mouth shut.

1. What was the field of Einstein's study? [ ]

A. Physics.

B. Wonders

C. Success in life.

D. Relativity.

2. The year 1905 is known as Einstein's "Year of Wonders'' because _____. [ ]

A. Einstein was working in Switzerland in 1905

B. Einstein was 26 years old in l905

C. Einstein made some very important discoveries in 1905

D. Einstein studied physics in l 905

3. Why hasn't there been another scientist as great as Einstein? [ ]

A. Because the study of physics is not enough.

B.  Because it is hard to make important discoveries as Einstein did.

C. Because people don't work hard any more.

D. Because physics is getting more and more difficult. 

4. The UN has named 2005 me World Year of Physics because _____.  [ ]

A. Einstein is 100 years old this year

B. Einstein has been dead for 50 years

C. There have been other great discoveries after Einstein's death

D. 1905 has been called Einstein's "Year of Wonders"

5. What does Einstein's formula of success mean? [ ]

A. Success means years of hard work.

B. Success means all study and no play.

C. Success means working hard,relaxing and not talking too much.

D. Success is a secret that nobody knows.

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