If your math teacher assigns(分派) five problems you should do six. If your Chinese teacher assigns eight pages of reading, you should read nine. The more you practice, the more you learn.

    Studying is a matter of personal preference(偏爱), so choose the way you are most comfortable with. Some people like working at night when the house is quiet, while others like doing their work early in the morning. Still others like studying as soon as they arrive home from school while the work is fresh in their minds. No matter which way you use, try to do your best.

    Studying is your business and business comes before entertainment(娱乐). When you are studying, phone calls should go unanswered, TV shows unwatched, snacks uneaten. Studying is the only thing in your mind. Nothing can pull you away from what you are studying.

    Studying is like eating. You chew(咀嚼) it one bite at a time. You can plan what to do today, but don't do too much. When you can't finish the work you planned to do, you may lose confidence. On the other hand, you will not study well without a good plan. It all depends on how you arrange your time.

    The students who hand in a clearly written paper is already half way to an A. Neat(工整的) papers are likely to get higher marks than sloppy(被泼水弄湿的) ones. When you write neatly and do your work carefully, the thoughts in your mind are clear. You are able to make fewer mistakes.

    Pablo's room was never tidy．He liked to put his things everywhere．Nico's room was always tidy and clean．He liked to organize(整理)everything．

    Pablo and Nico had a baby sister one Sunday． ⑴

    "I don't want to stay in one room with Pablo．"said Nico．

    "How can I do anything fun when everything is so clean?"asked Pablo．

    "Find a way to work it out．"said their mother．

    ⑵"It's too clean out there．"he said．But the closet(壁橱)was too dark at night，so Pablo moved back into their room．

    In the second week，Nico put some tape(胶条)on the floor(地板)．"You, stay on your side，"said Nico．But Nico had to cross the tape every day to leave the room，so he took the tape away．

    In the third week，they thought they needed some rules．

    "The first rule is that you can't use my things，”said Pablo.

    "The second rule is that you can't use my things," said Nico．

      ⑶  And at last they thought there was one more thing to do．"We need to paint(用颜料画)in our room!"Lucky for them．they had the same idea about what to paint．

根据材料内容完成下列任务。

    There is a National Health Service in Britain. People usually call it "the NHS". When people are ill, they can get free treatment（治疗）. ① The government pays for the treatment. In Britain everyone has a local doctor. The local doctor is a general practitioner (全科医生)(GP). A GP is a doctor who treats patients with all kinds of illness. He may not have specialists (专家) usually work in hospitals.

    If a man is ill and wants to see his doctor, he calls to make an appointment first. If he is too ill and he can't go out, his doctor will come to his house. If the patient has to take medicine, the doctor gives him a prescription(处方). ② The patient has to pay some money for the prescription. He goes to the chemist's shop and buys the medicine there. The price is the same as any kind of medicine. ③But children, students, old people or people without work don't have to pay for their medicine

    Have you ever counted the number of digits (数字) in your mobile phone number? Your number has 11 digits. You may sometimes find it hard to remember your number. That's because China has the longest mobile phone numbers in the world. Why is that?

    The 11 digits can be divided into three parts. Each part has a different meaning. The first three numbers tell you which mobile phone service provider (提供者) you are using For example, 135 is for China Mobile Communications Corporation and 188 is for China Unicom. The fourth to the seventh digits tell you where the number is registered (注册). And the last four digits are random (随机的).

    The main reason for using 11 digits is that we have the largest population in the world. We once had 10 numbers. But as our population grew, there were not enough numbers for us to use. So we began to use 11 digits starting from 1999. Eleven digits can be used to make tens of billions of mobile phone numbers. That's enough for each person to have seven or eight phone numbers to use in China.

    And mobile phone numbers can be recycled. Usually, the service provider will reuse a canceled number after three to six months. If you call a number that you haven't contacted (联系) for a long time, you may find that its owner has changed.

    Besides China, Britain and Japan also use 11-digit mobile phone numbers. But their numbers always start with 0. So they cannot create as many numbers as we can. Countries like the United States, Australia and India use phone numbers with 10 digits. Canada's mobile phone numbers are perhaps the shortest in the world: they use seven digits.