生物学 TPO49-L3 Reindeer

TPO49-L3

Reindeer

Listen to part of a lecture in a biology class.

 



  1. What is the lecture mainly about?
  • A. Explanations for a recent increase in the reindeer population
  • B. Adaptations that enable reindeer to live in cold climates
  • C. Differences between newborn reindeer and adult reindeer
  • D. Changes in the reindeer’s food supply

 

  1. According to the professor, why is it necessary for newborn reindeer to be able to walk and run almost immediately?
  • A. Newborn reindeer face intense competition from older reindeer.
  • B. Reindeer herds have to travel long distances every day.
  • C. Running and walking help reindeer maintain a stable body temperature.
  • D. Running is the only way reindeer can protect themselves from predators.

 

  1. What does the professor say about the lower part of a reindeer’s legs?
  • A. It stays warmer than the upper part of the leg.
  • B. It is able to maintain the same temperature as the main part of the reindeer’s body
  • C. It contains fat that changes texture at lower temperatures.
  • D. It contains fat that is different from the fat in the upper part of the leg.

 

  1. What does the professor imply about lichens?
  • A. They need reindeer in order to survive.
  • B. They are more abundant than other arctic plants during the winter.
  • C. They are more important to cows and sheep than they are to reindeer.
  • D. They are the object of fierce competition among arctic animals.

 

  1. What does the professor say about the microbes in a reindeer’s digestive system?
  • A. Some of the microbes protect the reindeer against harmful bacteria.
  • B. Many of the microbes are transported into the reindeer’s body on lichens that the reindeer eats.
  • C. The proportion of various microbes changes to accommodate changes in the reindeers diet.
  • D. The microbes found in a newborn reindeer’s digestive system are very different from those found in an adult reindeer.

 

  1. Why does the professor say this: 🎧
  • A. She wants to emphasize the importance of her previous point.
  • B. She wants to illustrate her previous point with an example.
  • C. She wants to return to the main topic of the lecture.
  • D. She wants to clarify her previous statement.


答案:
B B D B C C

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