春季听力L7课后练习-调查问卷模板-问卷网

What is the lecture mainly about?

A.The use of tree rings to measure water usage rates

B.Collecting data that are useful for planning water distribution

C.Investigating the history of water use in the Colorado River basin

D.The need for more government involvement in water distribution

What does the student find surprising about the 1922 water-sharing agreement?

A.It was based on only twenty years of data.

B.It was approved by all seven states in the region.

C.It was meant to remain in effect for more than 100 years.

D.It was based on data from outside the Colorado River basin.

3. According to the professor, what was the problem with the data recorded before the 1970s?

A.The data were recorded on old instruments.

B.The recorded data and human observation did not match.

C.There were gaps in the recorded data.

D.The data did not reflect the historical changes in the flow of the Colorado River.

4. What assumption did researchers use to draw conclusions about the Colorado River basin?

A.Ancient tree ring data can only be obtained from dead trees.

B.The climate in an area tends to remain constant over time.

C.Rainfall has a limited impact on water flowing in rivers.

D.Width of tree rings can correspond to the amount of moisture in an area.

5. What does the professor imply when he describes the early to mid-1900s as the wettest period for the Colorado River in 400 years?

A.The climate in the Colorado River basin will become wetter in the future.

B.The 1922 agreement was based on overestimated average river flows.

C.Water flowing in the Colorado River rises and falls at a predictable rate.

D.Human activity caused climate change in the Colorado River basin.

6. What is the professor's attitude toward future water-management plans in the Colorado River basin?

A.He believes better methods for collecting data need to be developed.

B.He does not believe water management will be a concern in the immediate future.

C.He is optimistic that new data will lead to better planning.

D.He is not certain all scientists understand the current condition of the Colorado River.

vocabulary

阐明，照亮 ____________

周围的 ____________

微弱的 ____________

排序 ____________

重新集合 ____________

不朽的 ____________

春季听力L7课后练习