资料：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 local manager of the 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 steel worker 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 be something abstract. But for each person or business that is making and selling something, it is very concrete. If nobody buys your tomatoes, it won’t be long before you get the message. The market is telling you something. It is telling you that you are using energies and resources in doing something the market doesn’t want you to do.
You are buying from the market when you____.
本题考查的是细节理解。
【关键词】buying from the market
【主题句】第3自然段When you spend your income, you are buying things from the market. You may spend money in stores, supermarkets, gas stations and restaurants. 当你消费时，你就是从市场购买东西。你可以在商店、超市、加油站和饭馆花钱消费。
【解析】题目意为“当你____时你是从市场购买商品。”选项A意为“从图书馆借书”，选项B意为“照顾你的孩子”，选项C意为“休假开车去海边”，选项D意为“在餐馆就餐”。根据主题句，D选项符合题意。
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