官方真题Official4托福听力Lecture3文本+真题+答案解析

官方真题Official4托福听力Lecture3题目文本

Question 1 of 6

What does the professor mainly discuss?

A. His plans for research involving moving rocks.

B. A difference between two geological forces that cause rocks to move.

C. Theories about why desert rocks move.

D. Reasons why geologists should study moving rocks.

Question 2 of 6

According to the professor, what have the researchers agreed on?

A. The rocks cannot move after ice storms.

B. The rocks do not move at night.

C. The rocks never move in circles.

D. The rocks are not moved by people.

Question 3 of 6

The professor mentions experiments on the wind speed necessary to move rocks. What is the professor’s attitude toward the experiments?

A. Their results were decisive.

B. They were not carried out carefully.

C. They were not continued long enough to reach a conclusion.

D. The government should not have allowed the experiments.

Question 4 of 6

What important point does the professor make about the area where the rocks are found?

A. It has been the site of Earth’s highest wind speeds.

B. It is subject to laws that restrict experimentation.

C. It is accessible to heavy machinery.

D. It is not subject to significant changes in temperature.

Question 5 of 6

What is the professor’s purpose in telling the students about moving rocks?

A. To teach a lesson about the structure of solid matter.

B. To share a recent advance in geology.

C. To give an example of how ice can move rocks.

D. To show how geologists need to combine information from several fields.

Question 6 of 6

What does the professor imply when he says this:

A. The movement pattern of the rocks was misreported by researchers.

B. The rocs are probably being moved by people.

C. The movement pattern of the rocks does not support the wind theory.

D. There must be differences in the rocks’ composition.

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