官方真题Official35托福听力Lecture 1真题文本免费分享

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1. What is the lecture mainly about?

A. The structure of the blind mole rats' underground tunnel system.

B. How blind mole rates find their way back to their nests.

C. Whether some animals use Earth's magnetic field for navigation.

D. Whether blind mole rats have more than one navigation system.

2. Why does the professor mention tree roots and rocks?

A. To emphasize the blind mole rat's need for two navigation systems.

B. To explain one reason why blind mole rats get lost.

C. To give examples of landmarks used by the blind mole rat.

D. To describe the materials the blind mole rat uses to build its nest.

3. In discussing the experiment, why does the professor refer to a generic habitat?

A. To prevent a misunderstanding about blind mole rats' tunnel systems.

B. To indicate how the researchers found the animals for the experiment.

C. To describe similarities between blind mole rats' natural habitat and those of other animals.

D. To emphasize the importance of habitat design to the success of the experiment.

4. What did the research team modify in the second part of their experiment?

A. They removed the food from the habitat.

B. They increased the distance between the nest and the food source.

C. They changed the magnetic field around the habitat.

D. They shifted the location of obstacles in the tunnels.

5. According to the professor, what factor governs which navigation system the blind mole rat uses in a given situation?

A. The distance traveled.

B. The direction of travel.

C. The complexity of the tunnel system.

D. The presence or absence of landmarks.

6. What does the professor imply when she explains why blind mole rats use two navigation systems?

A. One system is more accurate than the other for long trips.

B. One system takes more time to use than the other one does.

C. Individual blind mole rats have a preference for on system or the other.

D. Animals usually do not rely on only one navigation system for long trips.

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