There are many famous traditional Chinese doctors in China, and Li Shizhen is one of them.

    Here is the story of Li Shizhen and his great book.

    Li Shizhen was born in 1518. He became interested in Chinese medicine when he was stillyoung .His father was a popular doctor at that time, and Li Shizhen often saw that people were ill.

    ⒈He decided to study medicine so that he could help them.

    Li Shizhen read many books about medicine. He found that there were some mistakes in manyold medical books, so his hope was to write a new one. He tried his best to study medical science. He studied not only herbs(草药) in his garden, but also the wild ones. He went out to collect herbs and talk with old farmers. He learned a lot from curing (治疗) patients.

    After many years of hard work and study, Li Shizhen finished his great work Ben Cao Gangmu .At that time he was sixty. His book is one of the greatest books in the world medical field.

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    There are many people helping to take care of others in every country. For example, some high school and college students in the United States often spend many hours as volunteers in hospitals, orphanages (孤儿院) or the old people's homes.

    They read books to the old people. {#blank#}1{#/blank#}Other young volunteers go and work in the homes of people who are sick. {#blank#}2{#/blank#}For boys who don't have fathers, there is an organization called Big Brothers. College students take these boys to baseball games or take them to go on trips. {#blank#}3{#/blank#}.

    There are a number of clubs in some cities. {#blank#}4{#/blank#}Some of these clubs show movies or organize short trips to the mountains, the beaches, the museums or other places of interest. Most of these clubs have a lot of high school and college students as volunteers because they're young enough to remember the problems of younger boys and girls.

    {#blank#}5{#/blank#}And they always do volunteer work happily.

Hello, I am Mary. I live in Chengdu. It's sunny and cool in my city now. I'm studying at home. My parents are shopping. What's the weather like in your city? And what are you doing?

    Have you ever ridden a Ferris wheel lately? Can you imagine the flying feeling as you are pulled up to the top and then moved down to the bottom quickly again?

    Today a Ferris wheel is usually 40 to 60 feet tall. That seems very high when you are on the top looking down. But the first Ferris wheel was 264 feet high- taller than a twenty-story building! Can you imagine the view from the top of that?

    The first Ferris wheel was built for the 1893 World's Fair in Chicago. The people who planned the fair were looking for an attraction that would bring people to Chicago. George Ferris handed a drawing of a giant wheel that people could ride on. At first everyone laughed at his strange idea. But Mr Ferris did not give up, and finally the idea was accepted. The ride opened in June of 1893.

    Today's Ferris wheels have 12 to 16 seats, which each carry 2 or 3 people. But that first one had 36 enclosed cars, each holding 60 passengers. When filled, it carried 2,160 people. During that summer in Chicago, about 1.5 million people rode the Ferris wheel.

After the fair, the ride was moved to a nearby amusement park built especially to show off the wheel. In 1904, it was moved again一to St. Louis for the Louisiana Purchase Exposition. After the fair there, the wheel stood unused. In 1906, it was finally sold to a company for scrap metal(废金属).

    Luckily a Chicago bridge builder, W.E. Sullivan, figured out how to make a smaller Ferris wheel that could easily be taken apart and put together. In 1906, he started the company that still makes many of the Ferris wheels used today.

    But, whenever you ride one, remember that it all began with George Ferris's strange idea!