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.

根据句意，用所给单词的适当形式填空。
【小题1】We all know ______________ (pollute) water does harm to our health.
【小题2】I have read five                  (twelve) of this book.
【小题3】If you are in a blue mood, you can do your hobbies to cheer                ( you) up, boys.
【小题4】To tell you the                 (true), I felt sad while you were away. 
【小题5】The children heard the                 (frighten) shout and looked at each other in fear.

In the deep blue Indian Ocean, there’s a beautiful island (岛) country called Maldives(马尔代夫). It’s the smallest in population and area of all the Asian countries. It has an area of 90,000 km², but 99% of the area is covered by the sea. It has 1,190 islands and is about 820 km from North to South. People live on no more than 200 islands, while another 87 are visited by tourists. Some of the islands are only used for fishing or farming. The capital Maléis is on one of the middle islands, and about 75,000 people live there. The people there are friendly and welcoming. They use their traditional games to welcome people from all over the world. It is sunny on the islands almost every day, and makes them look so beautiful. People can enjoy lots of things in Maldives

1. 1.

   How many people live in the capital Maléis?

   1. A.
      75,000
   2. B.
      90,000
   3. C.
      1,190
   4. D.
      200
2. 2.

   What does the writer mean “Some of the islands are only used for fishing or farming”?

   1. A.
      There are no people living on some islands in Maldives
   2. B.
      Tourists are everywhere in Maldives
   3. C.
      People in Maldives like traveling very much
   4. D.
      People in Maldives can do nothing except fishing or farming
3. 3.

   What does the writer think of the people in the Maldives?

   1. A.
      He thinks they’re boring
   2. B.
      He thinks they’re poor
   3. C.
      They are friendly and welcoming
   4. D.
      He doesn’t like them

Deng Yu ：In 2050, China will be richer than it is now, Beijing will be getting ready for the 40th Olympic Games in 2052. We will see the blue and clear sky and smell the fresh air. There will be more pandas living happily China. I believe that 2050 will be the year of China.
Liu Yuan ：A holiday to the moon will no longer be a dream. We can also travel far to other planets and talk with the spacemen. We might also eat something like pills（药丸）instead of today’s meals. Everyone will enjoy a longer life.
Sun Wei ：Robots will be very popular. They will do what people don’t want to do. We’ll build new homes on other planets. By then, I’ll be sixty years old. Maybe we will have an exciting talk in my new home on another planet!
Zhang Lan：By the year of 2050, cloning（克隆）will be used in many ways. It will bring back animals which disappeared many years ago. There will be no pollution, the whole world will be one big family. There will be no wars. As time passes, we’ll live a much easier and better life.

1. 1.

         thinks that people can spend their holidays on the moon in the future.

   1. A.
      Deng Yu             
   2. B.
      Zhang Lan           
   3. C.
      Liu Yuan
2. 2.

   .What does Zhang Lan think will happen in the future.

   1. A.
      There’ll be more animals which disappeared many years ago.
   2. B.
      Robots will do the things that people don’t want to do.
   3. C.
      People can talk with the spacemen.
3. 3.

   The 40th Olympic Games will be hosted in       .

   1. A.
      Paris               
   2. B.
      Beijing             
   3. C.
      London
4. 4.

   How old will Sun Wei be        by 2050?

   1. A.
      50                  
   2. B.
      60                  
   3. C.
      70
5. 5.

   .From the talk, we can know that       .

   1. A.
      the 40th Olympic Games will take place in 2052.
   2. B.
      we will have the same food in 2050 as we do now.
   3. C.
      all the people will move to another planet in the future.