Question

We had known for along time that flowers of different plants open and close at different time of day. Yet no one really understands why flowers open and close like this at special time. The question is not as simple as we might think, as recent experiments have shown. In one experiment, flowers were kept in constant (持續(xù)的）darkness. We might expect that the flowers ,without any information about the time of the day, did not open as they usually do. In fact, they continue to open at their usual time. This shows that they have some special ways of knowing the time. Their sense(感覺) time does not depend on information from the outside world. It is inside them: a kind of "inner (內(nèi)部的）clock". This discovery may not seem to be very important. However, it is later found that not just plants but animals have this "inner clock" which control（控制）the working of their bodies and influences their activities. Human beings, then, are also influenced by it. Whether we wish or not, itaffectssuch things in our life as our need for sleep or need for food.

1. 1.
   Before the experiment arrived at a conclusion, people had thought that the flowers would____.
   1. A.
      never open in constant darkness
   2. B.
      change their usual time to open
   3. C.
      open ahead of the time as they usually did
   4. D.
      continue to open at usual time
2. 2.
   The sense of time that flowers have is connected with_____________.
   1. A.
      its age and size
   2. B.
      light and temperature
   3. C.
      a kind of strange power(力量）inside them
   4. D.
      some unknown information from the outside world
3. 3.
   What will happen if we make good use of the "inner clock"
   1. A.
      We'll need less sleep or food.
   2. B.
      We'll be able to sleep as long as we wish to.
   3. C.
      We'll be able to change our work time when necessary.
   4. D.
      We'll have more energy to do our work better.
4. 4.
   What's the Chinese meaning of the underlined word" affects"
   1. A.
      產(chǎn)生
   2. B.
      影響
   3. C.
      給予
   4. D.
      依賴

Answer 1

ACDB
本篇文章從對開花時間的研究引出植物和人類都有生物鐘這個結(jié)論。
1.A 細節(jié)題。根據(jù)In one experiment, flowers were kept in constant (持續(xù)的）darkness. We might expect that the flowers ,without any information about the time of the day, did not open as they usually do.可知答案為A.
2.C細節(jié)題。根據(jù)Their sense(感覺) time does not depend on information from the outside world. It is inside them: a kind of "inner (內(nèi)部的）clock".可知答案為C.
3.D推斷題。根據(jù)However, it is later found that not just plants but animals have this "inner clock" which control（控制）the working of their bodies and influences their activities. Human beings, then, are also influenced by it.可推斷如果我們好好的利用生物鐘，我們就有更多的精力工作。
4.B猜詞題。不管我們是否希望，生物鐘影響了我們睡覺吃飯那樣的事情。