Every morning my father buys a newspaper on his way to work. Every evening my mother looks through magazines at home. And every night, I look at the posters with photos of David Beckham and Yao Ming on my bedroom wall before I go to sleep. Can we imagine life without paper or print?

    Paper was first created about 2,000 years ago, and has been made from silk, cotton, bamboo, and, since the 19th century, from wood. People learned to write words on paper to make a book. But in those days, books could only be produced one at a time by hand.  As a result, they were expensive and rare. And because there weren't many books, few people learned to read.

    Then printing was invented in China. When printing was developed greatly at the beginning of the 11th century, books could be produced more quickly and cheaply. As a result, more people learned to read. After that, knowledge and ideas spread quickly.

    Today information can be received online, downloaded from the Internet rather than found in books, and information can be kept on CD-ROMs or machines such as MP3 players.

    Computers are already used in classrooms, and newspapers and magazines can already be read online. So will books be replaced by computers one day? No, I don't think the Yao Ming posters on my bedroom wall will ever be replaced by a two-metre-high computer!

    Today more and more children wear glasses before going to middle school. They keep their eyes watching TV or playing computer games for a long time. Eyes are the windows of our hearts (心). We use our eyes to see everything around us, so we should know how to protect our eyes.

    Love our eyes. When we open (睁开) our eyes every day, we can see the lovely friends and parents, beautiful flowers and green trees. If our eyes don't work, how can we see the world. In our eyes, everything and everywhere is dark. It's like a house with no light (光). How important our eyes are!

    Relax our eyes. First, stop to relax 30 minutes when using the computer for an hour or two. Next, remember to do eye exercises every day. Then, looking at green trees also helps a lot. In these ways, our eyes will feel relaxed.

    Have good habits. When writing homework and reading, it is important to keep a distance (距离) of 30 cm between your eyes and books. Remember to use our eyes in a right way. Don't read in bed or on a moving bus. Eat something healthy for eyes, such as carrots, fish and eggs.

    Follow my advice (建议) and get good habits. It's time to say goodbye to thick (厚的) glasses.

Here is a story: A man sees a butterfly (蝴蝶) . The butterfly tries to get out of its chrysalis (蛹) . F{#blank#}1{#/blank#}sorry for it, the man decides to help. He cuts the chrysalis and the butterfly comes out e{#blank#}2{#/blank#}. Surprisingly enough, the butterfly is unable to fly. If the butterfly doesn't struggle (挣扎；奋斗) to leave the chrysalis, it can't fly！The struggle develops the e{#blank#}3{#/blank#} in the butterfly which makes it fly. Similarly, the challenges of life bring out the best in young people and make the fly.

When people are young, meeting and overcoming challenges will make them s{#blank#}4{#/blank#} and ready to face life.

When we look at successful people, we see that the most successful of them are people who have had to struggle.

One famous businessman, who now o{#blank#}5{#/blank#}many big supermarkets, used to carry clothes on his back and sell them from door to door when he was young. Another successful man is Dennis. His father died when he was only twenty. He had to b{#blank#}6{#/blank#}up a big family. He took up the challenges and overcame them. Today his brothers and sisters are leading s{#blank#}7{#/blank#} lives.

Sometimes challenges do not appear to us because we keep away from them. So, some parents and teachers actively encourage young people to face challenges. They might organize some a{#blank#}8{#/blank#}for young people which provide them with challenges, like rock—climbing, camping, volunteer work and so on. However, just passing exams will not prepare a person for life. We must meet and overcome challenges. The young people of today will become the leaders of t{#blank#}9{#/blank#}. For countries to continue to become successful, it is i{#blank#}10{#/blank#}that the young people learn to meet challenges and overcome them.

Next time you make yourself a hot cup of tea or coffee，you might want to let it cool down a bit before drinking. 

Researchers say letting your hot drinks cool off could help you avoid some kinds of cancer. Researchers at the International Agency for Research on Cancer (IARC) found evidence that drinks at temperatures above 65 degrees Celsius, when swallowed, can cause cancer of the esophagus (食道). The researchers examined findings from other studies where tea and coffee were often served at 70degrees Celsius or above. Those studies were completed in Iran, China and South America. 

In developed countries, health experts have linked esophageal cancer to smoking and alcoholic drinks. However, this form of cancer is more common in areas where people drink beverages at very high temperatures. 

In Europe and the United States, many people drink coffee and tea at temperatures around 60degrees Celsius. And they often add milk which lowers the temperature considerably. However，tea﹣drinkers in Iran and mate﹣drinkers in South America often enjoy their beverages at closer to 70degrees Celsius. 

The researchers note that South Americans not only drink their mate very hot，they also drink it through a metal straw. This sends the scalding liquid directly into the throat. 

The findings, however, are good news for coffee drinkers. In 1991, the World Health Organization listed coffee as possibly carcinogenic (致癌的). WHO officials have since changed their position on that listing. They now suggest that the temperature of your hot drink is a greater risk factor than the actual drink itself. 

The results suggest that drinking very hot beverages is one probable cause of esophageal cancer and that it is the temperature, rather than the drinks themselves, that appears to be responsible.

What season is it in October? If you ask people from UK, they will tell you it's "autumn". But if you go to US, you will find that people use "autumn" or "fall". 

According to Dictionary. com, both words have been around for a long time. but neither of them was first to describe this season. During this season. crops would become ripe（成熟）and farmers would have a big harvest. So in Old English, this season was simply called "harvest". 

Then, in the 1600s, more people left their farms and moved to cities. With fewer people farming the word "harvest" became less useful. English speakers needed a different name for the season. They knew leaves fell from trees during the season, so people started calling it "the fall of the leaf", or "fall" for short. 

But at the end of the 1600s, autumn, from the French word "autompne" and the Latin "autumnus", came to English. "Fall" as the word for this season disappeared slowly. 

At the same time, people in UK were making their first trip to North America. They brought the words "fall" and "autumn" with them. That's why today Americans have two names for one season. 

What is the most stressful thing in school? It is probably exams. Exams can put us under a lot of pressure. But some students do well under pressure while others feel terrible. {#blank#}1{#/blank#}

It all comes down to dopamine(多巴胺). {#blank#}2{#/blank#} It has many important roles: influencing memory, attention, and how we learn. Our brains work best when there is an even(均等的) balance of dopamine— not too much or too little. The brain controls dopamine in two ways. It either takes out dopamine quickly or gradually. Exam success can be related to how fast dopamine goes back to an even balance.

{#blank#}3{#/blank#} If you become stressed, your brain will start to have too much dopamine. {#blank#}4{#/blank#} The quicker you are able to go back to an even balance of dopamine, the quicker you can fix yourself perform better on a test.

Scientists found that, during a test, people who slowly got back to an even balance of dopamine scored 8 percent lower.  {#blank#}5{#/blank#} The answer is yes. So don't fear, there is some good news. The study also found that the more practice you get, the less stressed you' ll be. So, it turns out that practice really does make perfect.