Many people believe that yellowing and wetness are the greatest enemy of stamps. In fact, stamps are afraid of not only wetness, but also light and dirty things. People protect their stamps in several different ways.

 To protect stamps,we should never touch the stamps with our hands.This avoids moving dirty things onto them. Stamp tweezers (镊子) should be used in all conditions.

 Stamps are printed things. The colour will slowly disappear if the stamps are put in the light for a long time. So we should not put stamps in the light for long. Direct sunlight must be avoided as well.

 Wetness is an important  problem for stamps. Some  collectors  will put stamps  in separate plastic (塑料) bags. However, it is possible that some stamps have taken in some water from the air before they are put into the plastic bags.Stamps yellow easily and rapidly after they take in wet air.To protect the stamps, some people also put the stamps into a special room which has a machine to  keep the air cool and dry. However, not many people can afford that.

 To keep stamps, stamp collectors usually put them under plastic covers. It is a common and simple way. This helps because the plastic cover keeps the stamps off the wet air. It also stops the fingersfrom touching te stamps.

 Some  collectors  prefer  to  store  stamps  inside  a  plastic  box  with  desiccants  (干燥剂).However, we should take care not to let the stamps. touch the desiccants. On top of that, don't  take your stamps out on a wet day.

    Sometimes, people are not clear about what kind of food is healthy and what kind of food may do harm to our health. {#blank#}1{#/blank#}The food guide describes six main food groups: meat, dairy, grains, fruit and vegetables. {#blank#}2{#/blank#} The USDA also suggests how much of each food group is proper to eat daily. Though this guide was prepared by the US government, it is very useful for people all over the world.

    Doctors everywhere suggest people eat more grains, fruit and vegetables and less meat and dairy food. {#blank#}3{#/blank#} When parents have poor eating habits, their children usually do, too. After all, children eat the same way as their parents. {#blank#}4{#/blank#}Then they will develop good eating habits. Doctors suggest parents give their children healthier food such as fruit, vegetables and juice.

    Everyone wants to live a long, healthy life. We know that food we eat affects us in different ways. For example, doctors believe that fruit and vegetables can really protect people from many different diseases. On the other hand, animal fat can easily cause diseases.{#blank#}5{#/blank#}

    Friends are very important in people's live.{#blank#}1{#/blank#} I think it's very easy to make friends with other people and build a friendship between each other. However,{#blank#}2{#/blank#} So what is true friendship? In my opinion, true friendship includes:

    First of all, true friendship must treat their friends loyally and help each other. In other words, you must not take advantage of your friends,{#blank#}3{#/blank#} For example, some unfriendly people make friends in order to cheat money and feelings, or get a certain secret and so I don't think these are true friendships.

    Second, {#blank#}4{#/blank#}For example, if a friend is really in need of money to escape from some troubles, true friends might lend it and help him or her.

    Third,{#blank#}5{#/blank#}One of the greatest men once said:" If you tell your happiness to your friend, you will get double happiness. If you tell your sadness to your friend, you will get half.

    Lu Xun was an excellent writer and thinker of modern China. He took part in the May

    Fourth New Culture Movement of 1919. He could be said to have laid the foundation(基础)of modern literature(文学)in China. You couldn't believe that he almost became a doctor! So how did Lu Xun give up the study of medicine and take up writing？

    When he was young, his father fell badly ill, and little Lu Xun bought medicine for him.

    But the medicine bought from a quack doctor(庸医)did his father no good at all, and his father died. With a deep sadness and great anger, Lu Xun promised to study the most modern medical skills and help people through medicine. He studied hard, and was accepted to study in Sendai Medical College in Japan.

    However, one event changed Lu Xun's life. One day, the teacher played a film of news in class. In the film, Japanese soldiers were preparing to kill a Chinese while some Chinese were watching it with great interest, as if it had nothing to do with them. After that, Lu Xun thought he should treat the numb(麻木的)spirits of Chinese.

    For this reason, he gave up the study of medicine and moved to Tokyo. He produced a magazine with some friends there. As a writer. Lu Xun hoped that he could save Chinese people with his pen. Many of his works were translated into the leading languages, including English, Russian, German, French and Japanese.

    Tea, coffee and cocoa are three major drinks all over the world. Tea is drunk by the largest number of people in the world. Tea, as well as silk and porcelain, began to be known by the world over a thousand years ago and has been an important Chinese export since then.

    Tea has a history of over 4, 000 years and China is the home of tea. In ancient China, tea was used as a kind of medicine, while nowadays people drink tea daily.

    Longjing, Pu'er, Wulong and Tieguanyin are all famous tea. Thanks to the mild climate and rich soil in Fujian, Zhejiang and Yunnan, tea is produced mainly in these provinces.

    The word for tea in different languages came from Chinese, like "cha'i" in Russian. And the Japanese character for tea is written exactly the same as it is in Chinese.

    Over the past centuries, Chinese people have developed their unique tea culture, which includes tea planting, tea-leaf picking, tea making, tea drinking and so on. Tea is also popular in some sayings, like "A friendship between gentlemen is like a cup of tea." In dances, songs, poems and novels, tea is often mentioned, too