There are two kinds of robots. The first type is the industrial robot. The second type of robots help us in our everyday lives. Robots of the later type are being used widely in Japan these days, helping people out in many areas—in hospitals, at homes and in schools.

Recently professor Tomomasa Sato and others developed a “robotic room”. This room is a robot itself, and they let the robot help the people inside. It has ten video cameras on the top of the room and walls. The robot can help the doctors and nurses do a lot of work with the help of its arms and nine computers. The robot's arms can lift and carry things needed by sick persons and nurses, and can throw waste things away.

   In the future, we may have robots at home to help out with the chores. Many people think these robots should look and move like humans. At Honda Motor Company, people made a robot that has two arms and two legs and can walk by itself, just like a person. This robot can walk freely by checking the road it walks on, and use its arms to do different things. The robot is 180 centimeters tall and weighs 210 kilograms. It can not only walk around flat places but go up and down stairs as well. It can also do such things as moving a bag. Not too far in the future, robots that look like movie characters may lend us a hand in our everyday jobs.

    It's a picture of a small room. There is a girl in it. Her name is Sally. It' s her room. There is a bed and a desk in her room. What's that on the wall? It's a map of England. Next to the map we can see a photo. It's Sally's photo. We can see a clock on the desk. Is it her black cat on the bed? No, it's her hat. Where's her backpack? It's on her bed, too.

    Playing sports has a lot of benefits(好处). It can help you build a strong body and keep you in good health. But some students don't like sports because they don't know how to play them. Many sports have a lot of rules. To play some sports well, people have to spend many years doing a lot of training(训练). So don't feel sad if you don't know how to play them. What should you do if you want to learn about some sports？ Firstly, you can watch DVDs or read some books that explain(解释) the rules of playing the sports. You can also ask your parents to explain the rules to you. If you know more about these sports, it will be easier for you to practice them. And if you want to find the one you like best, you should try different kinds of sports.

根据短文内容，补全表格中所缺的信息。每空不超过5个词。

    March 20th is World Water Day every year. According to a report from the United Nations, more than half of the world's major rivers have serious water loss and are polluted.

    The Yellow River, the world's fifth longest river, watered some of the oldest farms on earth.

    {#blank#}1{#/blank#}Its source（源头）on Qinghai-Tibet Plateau is drying up. In most of the past 35 years, it didn't reach the sea.

    The Nile in Egypt, running 6, 650 km, is the longest river in the world.{#blank#}2{#/blank#}Now it is down to 2 billion m³ or so. Australia's Murray River reaches the sea only every other year. One fifth of America's Rio Grande has no water, either.

   {#blank#}3{#/blank#}

    Mostly it's damming（筑坝）and global warming that make rivers dry.{#blank#}4{#/blank#}Now about 45, 000 of them lie across the world's rivers. They hold back around 15% of the world's fresh water from running to the sea.

{#blank#}5{#/blank#}Warmer weather takes water away. The glacier（冰川）are becoming smaller. The source of the Yellow River is drying up because of it. Global warming has had certain effects on water sources. Droughts （干旱） happening around the world make people pay more attention to this fact.

    When it comes to the letter grade on your test or homework, you might notice that there is no letter E. Have you ever thought about why that is so?

    In the A, B, C, D and F grading system, the first four letters are typically considered passing grades. An F in this system simply stands for "fail". The word "fail" happens to start with the letter F, which seems to leave out the letter E.

    The first college in the US to use a letter grading system like the ones we use today is Mount Holyoke College. In 1897, they began to use the following grading scale;

    A: 95-100% (excellent)         B: 85-94% (good)      C: 76-84% (fair)

    D: 75%( nearly passed)         E: below 75% (failed)

    We can see the inclusion of E instead of F.

    Gradually, the letter grading system became more popular all over the US. However, many schools decided to drop the E grade and go straight to F. There is no evidence(证据) to really support this, but one possible explanation is that teachers were worried that some students and parents might mistake E for "excellent".

    Why do we have letter grades? Well, part of the reason is that they made grading simpler during a time of great change for schools. As the 20th century began, growing cities and an increase in immigration led to larger school classrooms. Most teachers at that time thought this new letter grading system was an easy, fair and clear way to grade students.

    Today, more and more people think that letter grades don't fully show students' learning. However, as teachers try to improve grading methods, many parents continue to prefer the letter grades they got as kids, as they are familiar and easy for parents to understand. So while they might not be perfect, the letter grades probably aren't going away any time soon.

    We've heard about several "poor students" in the past year. Cui Qingtao, a student from Yunnan, working with his parents on a building site when he got an admission letter(录取通知书) from Peking University. {#blank#}1{#/blank#} She is a student form Hebei. She was doing her part-time job in a different city when her family got her admission letter from Peking University.

    {#blank#}2{#/blank#} For example, they are all strong and optimistic (乐观的). Li Enhui said in an interview, "As long as we are alive, there are no problems that cannot be solved, and many people don't have my experiences. {#blank#}3{#/blank#}" Such an idea makes many adults feel embarrassed. He refused to accept donation money and decided to make money by himself. This is also the common thing that "poor students" have. Whatever kind of values you hold, such personalities(品格) are necessary for growth. {#blank#}4{#/blank#} Not everything goes well all the time. Only being strong and optimistic, can one go through difficulties. In fact, living in poor families doesn't promise such good personalities, and living in happiness doesn't promise optimistic attitudes(态度). We like such "poor students" because they are strong and optimistic.

    For them, few can choose their lifestyles. {#blank#}5{#/blank#} That's why they are highly praised. Every one of us should learn from them.