A study finds that not enough morning light causes teenagers not to get enough sleep at night. “As teenagers spend more time indoors, they miss necessary morning light. Day light is needed to keep the balance of the body’s 24-hour biological system (生物系统), which regulates (调节) body temperature and sleep styles,” reports Dr. Mariana Figueiro. “These teenagers who receive little morning light are going to bed later, getting less sleep and doing badly in tests. They are more likely to fail in their exams.”
In the study, Dr. Figueiro asked 11 students in Grade 8 to wear special glasses to prevent blue morning light from reaching their eyes. At the end of the 5-day study she found that they fell asleep 30 minutes later than usual.
Throughout her research, Dr. Figueiro has been very worried about teenagers going to bed too late. The problem is that today’s schools require teenagers to be in school very early in the morning. These students are likely to miss the morning light because they often go to school before the sun is up or as it’s just rising.
Furthermore (此外), the schools are not likely to provide enough electric light to keep the balance of this biological system. Our biological system is much more sensitive (敏感的) to blue light. Therefore, having lots of light in the classroom does not make sure that there is enough light to keep our biological system balanced.

1. 1.

   Which of the following is the result of the study?

   1. A.
      Blue light in the morning harms the biological system.
   2. B.
      Not enough morning light keeps teenagers sleep less.
   3. C.
      Not getting more light in the morning make teenagers happy.
   4. D.
      Not enough sleep makes teenagers fail in tests.
2. 2.

   We know from the passage that morning light __________.

   1. A.
      has the same effects as afternoon light
   2. B.
      may change studying habits of teenagers
   3. C.
      is important to children’s biological system
   4. D.
      has no effect on students’ tests
3. 3.

   What’s the problem of the students according to the study?

   1. A.
      There are not enough electric lights in the classroom.
   2. B.
      Being in school early affects their study habits.
   3. C.
      They have to go to bed very early to have enough sleep.
   4. D.
      They go to school too early to get enough morning light.

Are you an only-child in your family? Are you feeling alone at home? How are you dealing with it?
Zhang Luwen, 12, feels lucky to have a 4-year-old “brother”. “With him, I never feel lonely at home. He goes with me wherever I go,” said the girl of Sichuan Province. But it is not easy to be a sister. Zhang has to help her parents bath her “brother” every week. This is because he is hairy — he is a dog.
As the number of pet owners in China grows more and more, Chinese students have animal friends at home. Experts say that these small animals give these only-children lessons in love, care, teamwork and generosity.
This month, the first study on the influence of pets on the children came out. It is a survey of 402 Beijing primary school students. It shows that animal friends are good for children.
China had more than 90 million only-children by 2006, according to the government. “In families of three, most children feel lonely. They don’t have many chances to learn how to love and be responsible for others,” said Zhou Xia in the study group. “So having a pet can help with the problem.”
However, some students complain that their parents don’t allow them to have pets. “They are afraid a pet would stop me studying,” said Chen Qi, of Chongqing.
Perhaps he could learn from Qin Yixing, 13, of Beijing. “I don’t play with my dog until I have finished my homework. I made the promise to my mom and I must keep it,” said the girl.
【小题1】According to the passage, experts think _______.

Having Fun “Growing” and “Stealing”？
Recently, an Internet game has become a new fashion among young office workers and students．People can “farm” on a piece of “land” and “grow’’, “sell” or even “steal” “vegetables”, “flowers” and “fruits” on the Net. They can earn some e-money and buy more “seeds”,  “pets” and even “houses”.
Joyce interviewed some young people. Here are their opinions．
Harold：I don’t quite understand why they are so mad about the childish game, Maybe they are just not confident enough to face the real world.
Allan：I enjoy putting some “bugs” in my friends’ gardens and we’ve become closer because of the game．Having fun together is the most exciting thing about it．
Laura：You know, people in the city are longing for(渴望) the life in the countryside．It reduces my work pressure(压力)；besides, it gives me the exciting experience of being a “thief”．
Ivy：  Well. it’s just a waste of time．Teenagers playing the game spend so many hours on it that they can not focus on (专注于)their study.
【小题1】According to the passage, people can’t _______things in this game.