There are many colors in nature. But do you know if a color has     1     (weigh)? I think you’ll say “no”. But I am afraid you are wrong. If you don’t believe, you may do a small experiment.

First, put two objects with the same weight into two boxes. Then cover the box.     2     (three), wrap (包裹) one box with a red piece of paper, the other with a white piece of paper. OK. Now hold the boxes with your hand one by one. It is     3     (certainly) that you will think the red one is a little     4     (heavy).

Why do you think so? A scientist found that different colors have different weight in a man’s mind. So he did many tests and at last he     5     (get) the result. That is to say, every color has     6     (it) own weight in our mind.

The scientist told     7     (we) that colors also have smell. Can you smell the color? Of course not. Then why did the scientists say so? That is because every color stands for a kind of light with a certain wavelength (波长) . It     8     (reach) our brain (大脑) through sense organs (感觉器官).

According to this discovery, scientists say that people accept the colors they like, and refuse the colors they hate. So your body and mind will be healthy by     9     (use) the colors you like. Or you     10     (be) nervous or even get ill.

The Chinese fan started around the Shang Dynasty. At that time, it was used to keep out the sun and rain. It was a bit like     1     (today) umbrella. It began to help cool people in the Zhou Dynasty. It was made     2     birds’ feathers (羽毛) and it was only popular among rich people. Later, the bamboo fan appeared and it was cheaper. The common people could have it. It was carried by men as well as women.

There were many types of fans for some special purposes. Then it became popular to paint or write on fans. There is a story about Zheng Banqiao, one of the     3     (great) artists in history. It’s said that once Zheng saw an old woman selling fans.     4     (she) fans were nice, but they     5     (not sell) well, so she was sad. Zheng decided to help her, and he drew some pictures on each fan. With pictures by Zheng on those fans, they sold out very quickly. When talking about fans today, we usually mean the folding fan. Fans play     6     important part in Chinese culture. It’s also a popular gift to give to your foreign friends.

Have you ever shared a room with someone, perhaps a brother, sister, or roommate? How did you get along with the other person? Did you always have arguments     1     did you work out a way to share the space without arguments?

Astronauts say that one of the most difficult     2     (part) of space exploration (探测) is sharing a tiny area with other people for a long time. Spaceships     3     (design) to make the best use of every bit of room. There is no more area that you can escape to have     4     quiet time all alone. Nor can you decide to get away and go for a walk. It’s even     5     (difficult) when you share the small area with astronauts from other cultures. These astronauts     6     (be) usually the people that may have different lifestyles and customs.

    7     do astronauts manage to have good relationships with their partners? First, astronauts are     8     (careful) chosen for their experience, physical fitness, and ability to get along with other people. They decide to finish the task successfully, even that means giving up some     9     (person) needs for the time being. Each member of the space team does research, so that takes up a lot of time. Then there are “spacing” skills such as listening     10     music on headphones or writing that can be done alone. Perhaps some of these will help you with your roommate.