问题补充：
Scientists are trying to find out how things affect our feelings. How you feel is controlled by many things, such as your personality(性格), the actions(行动) of others. Maybe you don’t know the weather can affect your feelings as well.
People often say they feel good when the sun is shining and sad when it is cloudy. In fact, sunlight makes us feel good. When sunlight hits our skins, our bodies makes vitamin D(维生素D). Vitamin D helps our bodies make a special chemical(化学物质). This special chemical affects our brains and makes us feel happy. For example, there are long, dark winters of little sunlight in Sweden and Norway, so many people in these countries often feel sad. To help the people in these countries feel better, scientists build special “sunrooms” for people to go there and get “sunlight” for an hour or two!
The weather can also affect people’s feelings in other ways. Hot weather can make people angry because people don’t feel comfortable when they are hot. In the same way, rain can make people angry because being wet can be unhappy. As you can see, the weather can have an effect on the chemicals which control our brains. Through these ways, the weather can affect our feelings in these ways. Sadly, while the weather can change us, we cannot change the weather.
【小题1】Which of the following is TRUE about vitamin D according to the passage?A．It is a kind of special food.B．It makes us worried by affecting our brains.C．It is helpful to our bodies. D．It is in the sunlight.【小题2】The underlined words “brains” means in Chinese.A．心灵B．心脏C．大脑D．精神【小题3】What can we infer(推断) from the passage?A．We will feel good when we are in the bright cool weather.B．We will be happy when we are in the rain.C．All people in Norway and Sweden feel sad in winter.D．The less vitamin D you have, the happier you’ll be.【小题4】What may be the best title for this passage?A．Why Do We Feel SadB．The Weather Influences People’s FeelingsC．People Need More Vitamin DD．We Can Change the WeatherC
答案：
(答案→)C
解析：这篇短文主要介绍了天气会影响我们的心情。天气能影响控制我们的大脑的化学物质。当阳光灿烂时人们会感觉好,阴天的时候人们会感觉悲伤。
【小题1】细节理解题。根据短文第二段Vitamin D helps our bodies make a special chemical(化学物质). This special chemical affects our brains and makes us feel happy.描述，维他命D帮助我们的身体生产特殊的化学物质。这种特殊的化学物质会影响我们的大脑,让我们感到快乐。故选C
【小题2】词意猜测题。根据该句As you can see, the weather can have an effect on the chemicals which control our brains.描述天气能影响控制我们的大脑的化学物质，故选C。
【小题3】推理判断题。根据第二段在瑞典和挪威的阴暗而少阳光的冬天,这些国家的许多人经常感到悲伤第三段炎热的天气会让人生气，可以推断，A正确，故选A。
【小题4】标题归纳题。根据短文开头的总启段，可知天气也能影响我们的感情，故选B。
