综合部分听力音频：
task1
You will now be asked a question about a familiar topic. After you hear the question, you will have 15 seconds to prepare your response and 45 seconds to speak.
Describe the most important decision that you have ever made. Explain why this decision is important.
Preparation time: 15 seconds
Response time: 45 seconds
task2
You will now read a short passage and then listen to a conversation on the same topic. You will then be asked a question about them. After you hear the question, you will have 30 seconds to prepare your response and 60 seconds to speak.
Reading Time: 45 seconds
San Jose State University Student Association recently changed the policy regarding the use of cell phones in the library. Read the following announcement which appeared in the university newspaper.
Cell Phones in the Library
The San Jose State University Student Association has recently decided to lift the ban on cell phone usage in the university library. Beginning on October 1, cell phone usage will be allowed in all areas of the library. Students are still encouraged to turn their phones to silent mode or vibrate so as not to disturb other library patrons and students are reminded to be courteous to others by not speaking loudly or playing loud music on their phones. The Student Association is confident that by allowing cell phone usage in the library will help students stay connected with campus news and alerts in the event of an emergency.
The student expresses his opinion on the recent Student Association
decision. State his opinion and explain the reasons he gives for holding that opinion.
Preparation Time: 30 seconds
Response Time: 60 seconds
Now listen to a conversation between two students:
task3
You will now read a short passage and then listen to a lecture on the same academic topic. You will then be asked a question about them. After you hear the question, you will have 30 seconds to prepare your response and 60 seconds to speak.
Reading Time: 45 seconds
Convergent Evolution
Convergent evolution describes the independent evolution of similar features in species of different lineages. Convergent evolution creates related structures that have similar form or function, but that were not present in the last common ancestor of those groups. The recurrent evolution of flight is a classic example of convergent evolution. Flying insects, birds, and bats have all evolved the capacity of flight independently. They have “converged” on this useful trait.
Evolutionary convergence involves unrelated organisms living in similar environments but in different places can occur in relatively simple communities in which biological interactions are highly predictable and the resulting number of different ways of exploiting the environment are limited. Similar environments pose similar challenges to survival and reproduction, and those traits that enhance Darwinian fitness are selected for in each environment.
Explain convergent evolution and how the example used by the professor illustrates the concept.
Preparation Time: 30 seconds
Response Time: 60 seconds
Now listen to a lecture on the same subject:
task4
You will now listen to part of a lecture. You will then be asked a question about it. After you hear the question, you will have 20 seconds to prepare your response and 60 seconds to speak.
Using points and examples from the lecture, describe two ways product packaging can influence product marketing.
Preparation Time: 20 seconds
Response Time: 60 seconds
Now listen to a lecture on the same subject:
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