单选题 Why does the student go to see her professor?

A. She is thinking of changing her field of study.
B. She needs advice about a problem with geese.
C. She wants to discuss the topic of her research.
D. She will not be able to complete her research.

【正确答案】 C

【答案解析】[解析] W: Dr. Marshall? M: Hello, Gloria. Is it ... uh ... you wanted to talk about your research? W: Yes. Is this a good time? M: Sure, sure. How's it coming along? You're studying goose populations, right'? W: That's right. Well, I was anyway. That's what I wanted to talk to you about, I think I want to go in a different direction. M: Oh...? W: You see ... it's like this. I've done a lot of Internet searches, and I've, uh, come up with some articles about geese, mostly about problems in urban areas, like city parks. But there was this one story that kind of got me off in a different direction. I found out about this accident that happened in Alaska when some geese got sucked into an airplane. M: Really? When did that happen? W: About six years ago. It was a pretty bad accident, too. It was a military jet, and several geese were sucked into two of the engines right after takeoff. The jet crashed, and the whole crew was killed. M: Birds and planes don't mix—hat's for sure. W: For sure. Well, anyway this article got me thinking about birds and plane accidents, so I started ... uh ... researching that, and I found out it's a pretty serious problem around airports. M: Hmm. I can see why. W: It's a big problem especially if the airport is surrounded by bird habitat, like wheat fields or wetlands. It's a big problem that I never knew about before. And then I learned about this program that uses biology to solve the problem. M: Oh? How so? W: Well, the air force figured out that the right kind of bird can keep the wrong kind of bird away, so they started using peregrine falcons to patrol the runways. This one air force base used to shoot the birds that were always hanging around the runway. Mostly it was geese and ducks, because it's near a wetland. But now, since they started the falcon program, and since falcons are predators, there haven't been any bird- aircraft collisions that required any repairs! M: That's amazing! Well, not really, when you consider the peregrine falcon's reputation as a predator. They can exceed 200 miles per hour in a dive—faster than any other living creature. I imagine just the sight of these birds is enough to discourage any other birds from coming anywhere near the airfield. W: It's true. The falcons and their trainers patrol the runways several times a day, during the lulls between takeoffs and landings. And after six months of falcon protection, they found that the cost of the program itself was only seven percent of the amount they'd been spending on bird-airplane damage. M: So, the benefits of this natural method of bird control are obvious. W: Right. The falcons get the credit for keeping the geese and the ducks away. It's an interesting solution to the problem, I mean, adding a predator to change the biology of the runway. M: Well, I think your research has taken a very meaningful turn. You're still studying problem geese, but you've just found an interesting angle in the way the problem's being dealt with. Keep going with it. W: Oh, good. I'm glad you think it's OK. Thanks, Dr. Marshall. I appreciate your time. M: All right. Good luck. 18. Why does the student go to see her professor? The student wants to discuss the topic of her research. The professor says ...you wanted to talk about your research?; You're studying goose populations, right? The student says Well, I was anyway. That's what I wanted to talk to you about. I think I want to go in a different direction. (2.3)

单选题 Listen again to part of the conversation. Then answer the question.
Why does the student say this:

A. To ask for advice about a problem that she has with geese
B. To explain why she wants to change the focus of her research
C. To express her opinion about geese in urban areas
D. To tell a story about an accident that she experienced

【正确答案】 B

【答案解析】[解析] Listen again to part of the conversation. Then answer the question. "You see ... it's like this. I've done a lot of Internet searches, and I've, uh, come up with some articles about geese, mostly about problems in urban areas, like city parks. But there was this one story that kind of got me off in a different direction. I found out about this accident that happened in Alaska when some geese got sucked into an airplane." Why does the student say this: "But there was this one story that kind of got me off in a different direction." The student's purpose is to explain why she wants to change the focus of her research. In her research into problems concerning geese, the student found an article that sent her off in a different direction. As a result, she wants to change her focus to the problem of geese and airplane accidents. (2.3)

单选题 What does the professor mean where says this:

A. Results are tragic when airplanes strike birds.
B. Sightings of birds from aircraft are unusual.
C. Airplanes do not frighten away most birds.
D. There is little similarity between birds and jets.

【正确答案】 A

【答案解析】[解析] What does the professor mean when he says this: "Birds and planes don't mix—that's for sure." The professor means that results are tragic when airplanes strike birds. The woman tells about an airplane accident in which several geese were sucked into two of the engines, causing a crash in which the whole crew was killed. The professor responds by saying Birds and planes don't mix, emphasizing the tragic results of such encounters between birds and planes. (2.4)

多选题 According to the conversation, which statements about peregrine falcons are true?
{{U}}Click on two answers.{{/U}}

A. They naturally prey on geese and ducks.
B. They are the largest of all predatory birds.
C. They are more intelligent than geese.
D. They can fly faster than any other bird.

【正确答案】 A、D

【答案解析】[解析] According to the conversation, which statements about peregrine falcons are true? Peregrine falcons naturally prey on geese and ducks: ...the right kind of bird can keep the wrong kind of bird away, so they started using peregrine falcons to patrol the runways, Mostly it was geese and ducks, because it's near a wetland. But now, since they started the falcon program, and since falcons are predators, there haven't been any bird-aircraft collisions that required any repairs! Peregrine falcons can fly faster than any other bird: They can exceed 200 miles per hour in a dive--faster than any other living creature. (2.2)

单选题 What is the student's opinion of the falcon program?

A. It is not as effective as shooting problem birds.
B. It should be discontinued because it is too expensive.
C. It is a good opportunity to promote peregrine falcons as pets.
D. It is interesting because it uses biology to solve a problem.

【正确答案】 D

【答案解析】[解析] What is the student's opinion of the falcon program? The student's opinion is that the falcon program is interesting because it uses biology to solve a problem. She says The falcons get the credit for keeping the geese and ducks away. It "s an interesting solution to the problem, I mean, adding a predator to change the biology of the runway. (2.3)