听力音频：
Task1：
Some people like to send text messages when they need information. Others prefer to call people on their cell phones for the information they need.Explain which method you prefer and why.
Task2：
Concerts on the Lawn
Several music students-friends of mine-have recently formed a new jazz band.I’d like to recommend that the university invite this jazz band to play some free concerts on campus.These concerts could take place in the afternoon:students would enjoy hearing live music while they relax between classes and other afternoon activities.And a perfect location for the concerts would be the open lawn area near the student center.Many students are in this area during the day,and the lawn has recently been improved;it’s now a nice area where students can sit and enjoy the music.
Sincerely, Tim Sutcliffe
The woman expresses her opinion of the letter writer’s proposal.Briefly summarize the proposal.Then state her opinion about the proposal and explain the reasons she gives for holding that opinion.
Task3：
Generalization to Avoid Predators
For animals to avoid predators and stay safe,they need to be able to identify which other animals might be dangerous predators.Animals can sometimes recognize new predators by their similarity to predators they are familiar with.This phenomenon is known as generalization.When they encounter an unfamiliar animal that has the same characteristics as a known predator,they generalize by behaving the same way they would to avoid the known predator.An animal’s ability to generalize can vary based on how similar the unfamiliar animals are to the original predators;the more similar they are,the more likely the animal is to generalize.
Explain how the example of minnows and trout illustrates the concept of generalization to avoid predators.
Task4：
Using points and examples from the talk, explain two strategies teachers to ensure students will follow classroom rules.
范文：
