Scientists are interested in whether the sense of smell is related to pain. They are also curious about whether men and women have the same senses. Now, the study has proved that pleasant smells reduce pain for women.     1     For men, there is almost no change.

Dr. Finkelstein is famous scientist in this field.     2     自从1999年以来，他一直在研究气味. He says that scientists have already collected data from 40 volunteers.     3     This year scientists will give another 60 volunteers tests and will be in a better position to explain the results.

One explanation is that     4     women’s sense of smell is generally better than that of men and is linked to recognizing the smell of babies. Scientists used to believe that mothers recognize their children by sight only. Now, they have become convinced that     5     嗅觉也有帮助.

Helping others is easier than you think.    1     You don’t need to wait to become a rich man like Bill Gatesto help the poor.You can become a volunteer, you can donate your time, you can donate your old clothes and so on. And in doing so,     2     你可以成为一个更好更快乐的人。

Choose some people to support.For example, homeless people, poor children and so on. All of these are suitable.

    3     Decide what you are able to give. Yes! Sometimes it isn’t only money — you can donate your time as a volunteer, you can donate your knowledge teaching poor children, you can donate your old clothes, you can donate food or     4     你可以和一个饥饿的孩子分享食物。

Tell people about it. Tell your friends or your children.    5     Put it in your blog or on your website. In this way, the good work you do will be multiplied!

In the West, if you are going to visit someone’s home, it is polite to take a present with you. Flowers, wine and sweets are all good choices. However, if you want to impress the host or hostess,     1     why not bring with you something handmade?

It is always wise to bring books about China to your foreign friends     2     目的是为了让他们更多地了解中国. If you think books are too ordinary, you can bring some traditional handicrafts such as fans.     3     In the past, fans were used not just to cool oneself. Sometimes fans were decorated with paintings or poems. When you give your friends the present, you can tell them a little about Chinese history. For the hostess, you can give her silk or a present with beautiful Chinese decorations, such as a handmade purse or a Chinese comb. I’m sure she will like it.

You can also give your foreign friends something to eat or drink.     4     你可以做一些中国菜and take them to your friends’ house. You can also bring Chinese tea. Tea is a national drink in China. It is an important part of Chinese culture.

    5     If you need to bring a present to children, toy pandas are a good choice. The giant panda is China’s national treasure. It is popular around the world.

It is just past five o’clock on the Chinese New Year’s Eve, and Luo Yan lifts the cover of a large bowl to breathe in the rich smell of the soup     1     his wife and mother have prepared.

Luo Yan and his wife and son have settled in the big city far away from their hometown. Their journey from the city where they live and work back to their hometown was a     2    漫长而又疲乏的 one just a few years ago. However,     3     the high-speed train has made it more convenient for them to go back home. During the four-hour trip, they chatted happily with each other.

    4    一到家, they find Luo’s parents eagerly waiting for them. Indeed, the family couldn’t be happier to be together. As midnight approaches, Luo Yan takes his parents, wife and son outside to set off firecrackers.     5     The whole village is lit up with the flashes of fireworks.