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Lecture3 (Reindeer)
1. What is the lecture mainly about?
A.Explanations for a recent increase in the reindeer population
B.Adaptatians that enable reindeerta live in cold climates
C.Dififerences between newborn reindeer and adult reindeer
D.Changes in the reindeer's food supply
答案：B
解析：
文章一开始就引入说讨论驯鹿，后面开始说它们的特征如何适应寒冷环境
2. According to the professor, why is it necessary far 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.
答案：B
解析：
师生互动学生说新出生的驯鹿很像成年驯鹿，出生就能站着，第二天就能跑起来，老师回答说是的因为资源匮乏驯鹿需要走很远的路找资源
3. 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.
答案：D
解析：
师生互动老师说驯鹿的腿下半部分的脂肪结构和上半部分不一样，它们可以让驯鹿在寒冷环境下也不会冻着
4. 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.
答案：B
解析：
老师举到lichen这个例子先说它是某真菌类和藻类的混合，冬天的时候lichen很多很充足，又说驯鹿喜欢吃它而且比其他吃lichen的动物从中获得的养分更多
5. 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.
答案：C
解析：
老师最后说春天来了驯鹿营养不良，需要吃不同的植物，它们消化系统中的细菌也本身可以在不同季节调整变化以消化不同植物。
6. Replay: 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：C
解析：
老师围绕着lichen讲了很多内容，有点偏题然后说anyway驯鹿，所以是回到主题上。
以上的内容是TPO49托福听力Lecture3题目+解析，希望可以给大家备考提供更多资料。