单选题     The market is a concept. If you are growing tomatoes in your backyard for sale, you are producing for the market. You might sell some to your neighbour and some to the manager of the local supermarket. But in either case, you are producing for the market. Your efforts are being directed by the market. If people stop buying tomatoes, you will stop producing them.
    If you take care of a sick person to earn money, you are producing for the market. If your father is a steelworker or a truck driver or a doctor or a grocer, he is producing goods or service for the market.
    When you spend your income, you are buying things from the market. You may spend money in stores, supermarkets, gas stations, and restaurants. Still you are buying from the market. When the local grocer hires you to drive the delivery truck, he is buying your labour in the labour market.
    The market may seem to be something abstract. But for each person or business who is making and selling. It's very real. If nobody buys your tomatoes, it won't be long before you get the message. The market is telling you something. It's telling you that you are using energies and resources in doing something the market doesn't want you to do.
单选题     Which of the following would be the best title for the passage?
 
【正确答案】 B
【答案解析】 本题属主旨题。通读全文，本文主要讲：市场是什么，市场的一些具体表现和方式。 A只是市场的一种行为表现；C叙述错误，除了producing，还有buying；D叙述错误，文章谈了市场与消费者两方面。
单选题     All of the following acts are producing for the market except ______.
 
【正确答案】 C
【答案解析】 本题属细节题。文章中的growing tomatoes、worker和sell都已提示，只有C(参加夜校)不符合。
单选题     The word 'real' in the last paragraph may most probably mean' ______'.
 
【正确答案】 D
【答案解析】 本题属推理分析题。因为文章第四段第一句已提到：市场看起来似乎是很抽象的，接着文章有个转折“but”，故real应是concrete(实在的)的解释。
单选题     In what way is the market very real for each person or business who is making and selling something?
 
【正确答案】 A
【答案解析】 本题属深层理解题。文章最后一段中的“the market is telling you something”，就是市场具体存在的表现。