( )1. How can laughter help us in our daily life? Do you think humor is helpful, if we are really sick? Do you know anyone who laughs all the time? What is that person like? Do you know someone who never laughs? Do you enjoy being around that person? ( )2. Many doctors believe that happiness is important for our general health. If you are worried about something, talk to your parents or your teacher. You should be happy for ever. ( )3. When we were babies, we slept for much of the day. It is important for teenagers to get about eight hours sleep. At weekends, youve got more time, so use it not just for your friends, but for rest, too. ( )4. Advertisements have because so common that they arent working any more. We dont like advertisements, so we try not to see them. We turn off the ads on our computers, we refuse to watch them on TV, or read them in magazines. ( )5. More teenagers damage(损伤) their health through smoking and takeing drugs than any other dangers. Think about the effect on your family and friends, and think about its effect on you and your health. A. We dont like advertisements. B. Dont worry! Be happy! C. Rest up while you can! D. Healthy food. E. Laughter is the best medicine. F. Say no to smoking and drugs.Computers are useful machines. They can help people a lot in their everyday life. For example, they can help people save much time, and they can help people work out many problems they cant do easily. Our country asks everyone to learn to use computers except the old people. Today more and more families own computers. Parents buy computers for their children. They hope computers can help them improve their studies in school. Yet many of the children use computers to play games, to watch videos or to sing Karaoke, instead of studying. So many teachers and parents complain (抱怨) that computers can not help children to study but make them fall behind. So computers are locked by parents in the boxes. In some other countries, even some scientists hate computers. They say computers let millions of people lost their jobs or bring them a lot of trouble. 1. Why do we say the computer is a useful machine? _ 2. Does our country ask the old people to learn to use computers? _ 3. Why do parents buy computers for their children? _ 4. What do many teachers and parents complain about? _ 5. Who said that computer brought them a lot of trouble? _