单选题
A Ways to determine the age of a fossil
B The identity of a fossil the woman found
C A comparison of two shellfish fossils
D Plans for a field trip to look for fossils
【正确答案】
B
【答案解析】[听力原文]31-35
W: Dr Manning, do you have a few minuets. I'd like to ask you about this fossil I found.
M: Sure Jon. What have you got there?
W: Well, it's some kind of shellfish. I thought is might be a brachiopod, but I am not sure. I found it when I went out hiking last weekend.
M: I think you might be right. It certainly appears to be a brachiopod. But it's easy to confuse them with the bivalve mollusks. Superficially they resemble one another. Both have two shells for example.
W: How can you tell them apart then?
M: Well, there arc some minor differences in the shell. A lot of brachiopods have ridge shells like this one. There are other distinctions of course. Internally they are quite different. Mollusks and brachiopods belong to different animal groups, and they have been in competition with one another millions of years ago.
W: How old do you think this one is?
M: It's hard to tell. The earliest brachiopods were from the Paleozoic era, 300 to 500 million years ago. They were quite successful then in terms of number of species. It's not out of the question that your fossil could be that old.
W: Wow, that's amazing. Kind of makes paleontology seem more interesting when you can hold it in your hand.
M: You know that gives me an idea. Would you mind bring this to our next class? The others might find it interesting too.
W: Well, I could. But if you don't already have one in your collection, I thought you might as well keep
M: That's very kind of you.
31. What are the speakers mainly discussing?
单选题
A The class is going to study them.
B They evolved from brachiopods.
C They are similar to brachiopods in appearance.
D They belong to the same species as brachiopods.
【正确答案】
C
【答案解析】[听力原文]
Why does the prof mention bivalve mollusks?
单选题
A It has a ribbed shell.
B It has an unusually large valve.
C It was found near the water.
D It is smaller than a mollusc.
【正确答案】
A
【答案解析】[听力原文]
Why does the prof think the fossil might be a brachiopod?
单选题
A He has never seen a fossil that old.
B It could be many millions of years old.
C It is probably a recent specimen.
D He will ask the lab how old it is.
【正确答案】
B
【答案解析】[听力原文]
What does the prof say about the age of the fossil?
单选题
A Take it to class
B Put it in her collection
C Take it to the lab
D Leave it with her professor
【正确答案】
D
【答案解析】[听力原文]
What does the woman want to do with the fossil?
单选题
A A jewelry store robbery
B Buying a birthday present
C Writing a stow
D Doing research for a class assignment
【正确答案】
C
【答案解析】[听力原文]36-39
M: I am so relieved I just finished the story I was working on for our creative writing course.
W: I haven't quite finished mine yet. I had trouble getting pass the beginning.
M: How come?
W: Well, I was really happy to be writing a detective story. But after the first few pages, I sort of froze up mentally. I just couldn't write any more.
M: The same thing happened to me. I thought it meant I lack imagination.
W: Well, Prof Wilson said it's pretty common for writers to get stuck like tat.
M: You went to talk to her about it?
W: Actually, I went to ask for more time to finish the assignment. But instead she gave me some advise about how to keep from getting stalled writing like that. She said that the first thing I should do is just write anything that come into my head even if it doesn't make any sense, sort of burble warm up exercise.
M: That is interesting. When I got stuck, I shift to something else, you know, do some work for one of my other courses.
W: Well, her methods seem have worked for me. I've written most of the story, and I should be able to hand it in on time. But first I need go to the jewelry store.
M: You are going shopping? Can't you wait until you finish your story?
W: I am going there for my store. My detective solves a jewelry store robbery. So I want to take a look at how the jewelry cases are arranged, where the security cameras are located, that sort of thing.
36. What is the conversation mainly about?
单选题
A Her professor did not like her stow.
B She had trouble finishing her assignment
C she did not like the topic she had chosen for her paper.
D She was taking too many courses.
【正确答案】
B
【答案解析】[听力原文]
What was the woman's problem?
单选题
A Take some extra time
B Do a writing exercise
C Do some work for another course
D Write the story ending first
【正确答案】
B
【答案解析】[听力原文]
What did the prof tell the woman to do?
单选题
A To go shopping
B To do research for her stow
C To meet with her professor
D To take a break from her work