问题 选择题

一般来说,在两种互为替代的商品中,当其中一种商品价格上涨时,则会使人们对另一种商品的需求量(   )

A.减少

B.不变

C.或增加或减少

D.增加

答案

答案:D

题目分析:互为替代品是指两种商品的属性都能满足人们的需要,一种商品价格上涨,那么该种商品需求减少,由于另一种商品能够同时满足人们需要,故其需求会增加,因此本题选D

点评:本题难度不大,考生需对替代品的含义把握清楚,在商品价格上涨时,其替代品需求增加,互补品需求减少,这一点老牢记。

完形填空

Muzak

The next time you go into a bank, a store, or a supermarket, stop and listen. What do you hear?  小题1:  It's similar to the music you listen to, but it's not exactly the same. That's because this music was especially designed to relax you, or to give you extra energy. Sometimes you don't even realize the music is playing, but you react to the music anyway.

Quiet background music used to be called "elevator (电梯) music" because we often heard it in elevators. But lately we hear it in more and more places, and it has a new name "Muzak". About one-third of the people in America listen to "Muzak" everyday. The music plays for 15 minutes at a time, with short pauses in between. It is always more lively between ten and eleven in the morning, and between three and four in the afternoon, when people are more tired.    小题2: 

If you listen to Muzak carefully, you will probably recognize the names of many of the songs. Some musicians or songwriters don't want their songs to be used as Muzak, but others are happy when their songs are chosen. Why?  小题3: 

Music is often played in public places because it is designed to make people feel less lonely when they are in an airport or a hotel. It has been proven that Muzak does what it is designed to do. Tired office workers suddenly have more energy when they hear the pleasant sound of Muzak in the background. 小题4: Supermarket shoppers buy 38 percent more groceries.

 小题5:. They say it's boring to hear the same songs all the time. But other people enjoy hearing Muzak in public places. They say it helps them relax and feel calm. One way or another, Muzak affects everyone. Some farmers even say their cows give more milk when they hear Muzak!

A.Some people don't like Muzak.

B.The music gives them extra energy.

C.Music is playing in the background.

D.Factory workers produce 13 percent more.E. Muzak tends to help people understand music better.

F. They get as much as $4 million a year if their songs are used.

G. Muzak is played in most of the big supermarkets in the world.

单项选择题