阅读短文，并按要求完成36~40题。

38. Many scientists find that colors can change people’s feelings. It’s very interesting. Some colors can make people feel relaxed, and some colors can make people feel nervous. Now, this kind of knowledge is being used in many places. For example, school walls are always painted green because green makes students feel relaxed. It is also good for the students’ eyes. Some books are also green or light blue for the same reason. 39. Restaurant owners not only have to know how to make food, but also have to know how to make money. Here are some things they’ve learned from scientific studies. The color red makes people hungry. Many fast food restaurants have red furniture or walls. Soft colors like pink and light blue make people feel relaxed, so they spend more time eating. Loud music may be nice at first, but it soon makes people want to leave. Hard seats also make customers want to eat first, but it soon makes people want to leave. Hard seats also make customers want to eat quickly and leave. Many restaurants, especially fast food restaurants, use this knowledge to make customers eat faster.

36、37题根据短文内容回答问题；38、39题将文中画线的句子翻译成汉语；40题请给短文拟一个适当的标题。

36. How does the color green make the students feel? (Please answer within 15 words.)

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37. What do many fast food restaurants do? (Please answer within 20 words.)

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38.

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39.