综合部分听力音频：
Task1
Do you agree or disagree with the following statement?
Parents should encourage their children to become popular and well liked at school.
Explain why, using details and examples to support your opinion.
Task2
Reading：
Mandatory Biology Study Groups
Beginning next fall, all first-year students enrolled in introductory biology courses will be required to attend weekly group study sessions. At the beginning of the semester, the students of each Introduction to Biology class will be organized into small study groups of between five and seven students. The new requirement is intended to help first-year students develop the study skills they need to meet the demands of university-level academic work. The study groups will also give first-year students an opportunity to meet and make friends with other first-year students at the university.
The woman expresses her opinion about the change described in the announcement. Briefly summarize the change. Then state her opinion about the change and explain the reasons she gives for holding that opinion.
Task3
Reading：
Hyperpredation
Predator-prey relationships are normally kept in balance naturally; that is, if a predator species kills too many of its prey, then the predator’s population will eventually decline because it now lacks sufficient prey to eat. The reduction in the predator population then allows the prey population to increase again, and the cycle continues. Sometimes, however, the normal predator-prey balance breaks down and predators become unusually abundant, which is known as hyperpredation. Hyperpredation usually occurs following the introduction of a second, alternative prey. This additional food source allows predator numbers to greatly increase and can even result in the extinction of the original, primary prey.
Explain how the example from the professor’s lecture illustrates the concept of hyperpredation.
Task4
Using points and examples from the professor’s lecture, describe two reasons why air temperature tends to be higher in cities than in the surrounding countryside.
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