【答案解析】[解析] 1-4
M: Did you watch "Undersea Discovery" last night?
W: No, I missed it. Did you?
M: Yeah. It was pretty good--it was about barnacles.
W: Hmm.
M: You know how they stick themselves to stuff in the ocean--like rocks or boats?
W: Uh-huh.
M: Well, they do that when they're young, and then they stay in the same place forever.
W: it figures. Have you ever tried removing one of those things? Last summer I tried to scrape some off a pier--I had to give up after a while. You'd think they wouldn't be able to stick like that underwater.
M: That's one reason scientists are trying to figure out what their glue's made of. It's one of the strongest adhesives in nature. And it's a natural protein, so it probably wouldn't be harmful like some synthetic glues.
W: Really?
M: Yeah. These biomedical researchers were talking about its possible uses. Orthopedists could use it for mending broken bones; or it could be used in dentistry.
W: I wish I'd seen that.
What was the television program about?
主题考察，通常只要抓住反复出现的词汇就可解题。
单选题
A. They eat protein.
B. They never move from one location.
C. They cause erosion of rocks.
D. They are found only in deep water.
【正确答案】
B
【答案解析】[解析] What did the man learn about barnacles?
细节题。如果能听出“they stay in the same place forever”这句话，就可看出选项B与之完全对应。
单选题
A. It works on wet surfaces.
B. It's stronger than synthetic glue.
C. It's a nutritious source of protein.
D. It has been used successfully by doctors.
【正确答案】
A
【答案解析】[解析] What did the man learn about barnacles?
“You'd think…”的意思是“你会认为……”，实际上这里肯定表达了否定，恰恰表达了“barnacle”在海底也具有极强的黏性，这也正是科学家们感兴趣的原因。
单选题
A. Nutrition.
B. Ecology.
C. Medicine.
D. Geology.
【正确答案】
C
【答案解析】[解析] What did the man learn about barnacles?
词汇考察题，“biomedical”，从词根上即能推测出与生物有关，选对答案C。