【正文】 ks around. It’s interesting. What antibiotic are you taking?M: I don’t remember. It’s on the bottle. I think I’ll take a new look at the label and drop by the library to see if they have reference books on medicines. See you in lab tomorrow.31. What are the speakers mainly discussing?32. What does the woman offer to give the man? 33. Why does the woman tell the story about her father?34. Where did the woman learn about antibiotics?35. What will the man probably do next?3640W: Hi, Bill, how is it going?M: Oh, hi, Jan. I’m OK. How about you?W: You can probably tell just by looking at me. I’ve been really busy. Hey, what are you reading?M: A pretty interesting article. My biology professor assigned it, and I thought I just look it over. But I got really involved in it. It’s about endangered species. W: That sounds pretty interesting. I’m getting frustrated with the two research papers I’m struggling with.M: Oh?W: And can you believe they are both due on the same day?M: That’s tough.W: I’ll get through it. So what’s this you are reading?M: Well, it’s basically about the choices conservationists faced with. You know, on these days when funding so hard to e by(取得). W: Wait a minute. Is the focus on biology or economics?M: Both. Conservationists don’t have enough funding to save every endangered species in the world, so they have to decide based on what would be lost if a species became extinct.W: Can you give me an example of what you mean?M: Take for instance, two animals, the spotted owl and the tailed toad. The article says the toad is unique. It has no relatives. But there are a lot of varieties of owls.W: So, if that toad became extinct, we’d lose an important link in the chain of revolution, right?M: Exactly. But that isn’t so for the awl. So for conservationists, it might be clear choice of which animal to save.W: I see. I am glad I don’t have to make that kind of decision. Aren’t you?36. What are the speakers mainly discussing? 37. Why is the woman so busy?38. Why does the woman say she’s frustrated?39. What problems do conservationists have?40. What can be inferred about the tailed toad?Part C4144In my opinion, Frank Lloyd Wright was the greatest American architect of the 20th century. People who know his designs well point out that his roofs often leaked, his ceilings were too low, and his houses were unfortable. In my presentation, however, I’ll be focusing on the virtues of his designs. For what you will see, it would be hard to dispute that he manipulated space extremely well, some of his smallest houses look gigantic, and he had great respect for the materials he used and also a tremendous skill for placing his buildings in harmony with nature. Wright’s career began when he was young. He was just a teenager when he helped build the chapel on his family’s property in Wisconsin. And from there, he got hired as a draftsman by the project architect. So it was a very long career. He died at 91, while his final major work, the Guggenheim Museum, was still being built. Today, we’ll cover what we consider to be the two great periods of his career, Wright’s works before the Tokyo Imperial Hotel pleted in 1922 and everything after Falling Water, a private residence in western Pennsylvania pleted in 1936. The first period started around 1896, when he made a dramatic shift from the classical tradition to the arts and crafts movement. Here, the emphasis was on order, consistency and unity of design. Things were kept simple with minimal decoration. Natural forms were very important. Let’s take a look at a slide of his own dining room done in this style. 41. What is the purpose of the talk?42. What is one criticism of Wright?43. How did Wright’s career begin?44. Why does the speaker mention the Imperial Hotel and Falling Water? 4547We are going to talk today about the moon, our moon.. First of all, the earth’s moon is unusual. Why? It’s larger than other moons or satellites in the solar system, in relation to its planet that is. Its diameter is more than a quarter that of the earth. And if you pare the earth and the moon in terms of substance, you find the moon isn’t much like the earth. For example, the earth has a significant iron core, but the moon contains very little heavy materials like iron. That’s why its density is much lower than that of the earth. Now, one time it was believed that the moon and the earth were formed at the same time from the same material. But then wouldn’t the moon have as much iron as the earth? Another theory is that the moon was formed elsewhere in the solar system, and then it was captured, so to speak, by earth. But study shows that the young earth would not have had enough gravitational force to stop a body the size of a moon from traveling through the solar system and pull it into orbit. The newest theory is called the big splash theory. Here, the new young earth was hit by another big planet. Most of the colliding planet entered the earth and became part of it. But the huge impact created a vapor that shed out into space and eventually condensed as the moon. Because this material came mostly from the earth surface crust, not the iron core, the moon contains almost no iron. Well, as plausible(似是而非) as it sounds, it’s only a theory, and we can’t be sure that this is what really happened, that this is how the moon originated. Plenty of research remained to be done. 45. What does the Prof mainly discuss?46. According to the Prof, why do scientists disagree with the theory that earth captured the moon?47. What information about the moon’s position helps support the big splash theory?4850In order to diagnose and treat abnormal behavior, we have to start with clear definitions of what’s meant by abnormal and normal. Criteria must be worked out for distinguishing one from the other in actual clinical cases. The word abnormal implies a deviation from some clearl