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 neighbor 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, yon 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 labor in the labor market.
The market may seem to be something abstract. But for each person or businessman who is making and selling something, 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?

单选题 All of the following acts are producing for the market EXCEPT ______.

【正确答案】 C

【答案解析】本题可以通过排除法找到答案。从文中第一段、第二段我们知道，当你为出卖的目的而生产产品或提供服务时，你的行为就是为市场制造产品。B“印刷一本书”和D“种豆出售”都是为了出卖产品而进行的劳动，故可排除；选项A“在银行工作”是为市场提供服务，故可排除。本题的正确答案应为C“参加夜校学习”。
当然我们也可以通过推断法确定本题答案。根据本文对市场的解释，参加夜校学习既不是为市场提供产品的劳动又不是为市场提供的服务。所以答案为C。

单选题 You are buying from the market when you ______.

【正确答案】 D

【答案解析】文中第三段第一句、第二句说：“当你花你的收入时，你就是从市场上买东西。你也许把钱花在商店、超级市场、加油站和餐馆。”因此选项D符合题意。A“从图书馆借一本书”、B“照看你的孩子”和C“开车去海边度假”都不是从市场上买东西，不符合题意。

单选题 The word "real" in the last paragraph may most probably mean ______.

【正确答案】 D

【答案解析】文中第四段第一句、第二句说：“市场似乎是抽象的东西。但是对于制造和出售商品的每个人或生意人来说，它是非常real”。我们可以看出，“real”这个词在这里同“abstract”一词是相对而言，含义为“具体的”。因此选项D正确。A“认真的”；B“重要的”；C“真实的”；这三个选项均是错误的。

单选题 In what way is the market very real for each person or businessman who is making and selling something?

【正确答案】 A

【答案解析】文中最后一句说：“它告诉你，你正花费精力和资源做市场不打算让你做的事情。”由此我们可以推断出，它同时也会告诉你生产什么。所以选项A正确。