Everyone knows that exercise is important. We all need to exercise. There are many ways to exercise. You can walk, run, swim, skate, or play ball games, but you should remember to exercise in the right ways.

        ①    Before you do any exercise, make sure to warm up for at least five minutes. During warming up, you should extend all parts of your body.

        ②      It's best to exercise twice each week. Thirty minutes each time is enough. Try all kinds of things until you find one, two or even three sports that feel right for you.

        ③    There are a lot of equipments (设备) at fitness centers. The equipments will help exercise your arms, legs and other parts of your body to make you fit. Some people buy equipments for their homes. But it is very expensive.

        ④     If you get hurt when you are doing exercise, don't play again until you are well.

How to pick a great book to read

    The world is full of great books just waiting to be read. How can you pick one you'll really like.

    Here are some tips:

    What makes you happy?

    {#blank#}1{#/blank#}Are you really into dinosaurs or dogs or a film star? Are there a few careers you're interested in? You can find books about almost anything you like, and you're more likely to enjoy reading a book if you're already interested in its subject.

Fact and fiction?

    Some books are entirely made up and imagined Those are called fiction books{#blank#}2{#/blank#} Non-fiction books tell stories using facts—but that doesn't mean they're boring. Non-fiction books can bring everything to life.From the first trip to the moon to what it's like to explore the deepest oceans. Try both fiction and non-fiction books to see which you like better.

    {#blank#}3{#/blank#}What was your mother's favorite book when she was your age or your dads? Ask them and give it a read. Then you can talk about what they liked about it and share your thoughts. It's a fun way to get to know your family a little better, and to find a book you'll enjoy!

    Ask an expert.

    Your local library is a great place to find books that you'll love, and you don't have to search them by yourself.

    {#blank#}4{#/blank#}Your librarian can help you find other books that you're sure to love.Your teacher is another good person to ask.

Organize a book swap.(交换)

    Why not get some friends together and trade favorite books? It's always fun to see what your friends are reading.{#blank#}5{#/blank#}You also can look for book swaps in your area.

    Albert Einstein (1879～1955)

    Early Life

    Albert Einstein was born on 14th March, 1879 in Germany. He has been an extraordinary (非凡的)person since he was born. Einstein wasn't able to speak a word until three. He was curious(好奇的)and imaginative. He loved watching things carefully and asked a lot of questions about them. His questions were often hard to answer for teachers.

    Schooling

    Einstein started school in 1885. Though he did well in maths and science, he failed in many subjects like history, geography and languages. He was not the teachers' favourite. He didn't enjoy going to school. Einstein finished high school in Switzerland and entered a university in Zurich. He graduated(大学毕业)as a teacher of maths and physics in 1900.

    Scientific Work

    After graduation, Einstein worked at the Patent Office. He spent much time studying physics. By 1909, Einstein had become a top scientist. Though he became successful in the field of science, he still put great effort in scientific research. Finally, he won the Nobel Prize for Physics in 1921.

    On May 5^th, 2017, at Shanghai Pudong International Airport, China's first Homemade jet airliner(喷气式客机), the C919, took off successfully for the first time. It has taken about ten years for the scientists and researchers to make this Chinese dream come true. It's a pride of the whole nation. So far, more than 23 countries have already ordered 570 C919 planes from China. But we still have a long way to go before the C919 carries passengers by 2020.

    What's more, China is working on the new high-speed trains with the highest speed of 400km/h. It will be ready by 2020. Many countries, especially the ones in Central Asia, Southeast Asia, the Middle East and Eastern Europe, are planning to build high-speed rail lines or to improve their railways with the help of China.

    China has made great progress in both science and technology. And it makes a great contribution(贡献)to humans，too. All of these are changing the daily life of Chinese people，even of the people around the world.

    When this story happened, they were working around a very large house. Their job was to do the cleaning. It was not a difficult job, but sometimes it was a little dangerous, because they had to walk below where workmen were working. These workmen often dropped something from the top of the house many meters high to the ground.

    One morning Joe was working near the house with a cigarette(烟) behind one of his ears. Suddenly somebody on the top shouted, "Look out!" But Joe did not "look out". He looked up. And as he did so, a long knife missed Joe's head, but it cut off one of his cars. At once he put his hand to one side of his head and cried out, "I've lost an ear. Help! Help!" Jeff ran up to help his friend. "Look for my ear," Joe told him." It must be on the ground somewhere." Jeff looked everywhere for the missing ear. At last he found an ear on the ground. He picked it up and carried it to Joe. "Here you are", he said, "I've found it." Joe looked at it." No, that's not my ear." He said," Mine had a cigarette behind it"