What is the lecture mainly about?
Why does the professor decide NOT to add more information to the diagram on the board?
According to the professor, what are two ways in which a moth might react when it detects the presence of a bat? Choose 2 answers.
What surprising information did a recent experiment reveal about lesser spear-nosed bats?
According to the professor, why does a pine tree produce a “smooth” echo?
Listen to Track 4.
The questions typically ask about the main idea and supporting details. Some questions ask about a speaker’s purpose or attitude. Answer the questions based on what is stated or implied by the speakers. Answer each question before moving on. Do not return to previous questions. Give yourself 10 minutes to answer all the questions in the Listening section.
Do not count the time it takes to listen to or read the conversation and lectures.
Now begin the Listening section.