TUTOR: So, Rosie and Martin, let’s look at what you’ve got for your presentation on woolly mammoths.
ROSIE: OK, we’ve got a short outline here.
TUTOR: Thanks. So it’s about a research project in North America?
MARTIN: Yes. But we thought we needed something general about woolly mammoths in our introduction, to establish that they were related to our modern elephant, and they lived thousands of years ago in the last ice age.
ROSIE: Maybe we could show a video clip of a cartoon about mammoths. But that’d be a bit childish. Or we could have a diagram, 【Q21】 it could be a timeline to show when they lived, with illustrations?
MARTIN: Or we could just show a drawing of them walking in the ice? No, let’s go with your last suggestion.
TUTOR: Good. Then you’re describing the discovery of the mammoth tooth on St Paul’s Island in Alaska, and why it was significant.
ROSIE: Yes. The tooth was found by a man called Russell Graham. He picked it up from under a rock in a cave. He knew it was special – for a start it was in really good condition, as if it had been just extracted from the animal’s jawbone. Anyway, they found it was 6,500 years old.
TUTOR: So why was that significant?
ROSIE: Well 【Q22】 the mammoth bones previously found on the North American mainland were much less recent than that. So this was really amazing.
MARTIN: Then we’re making an animated diagram to show the geography of the area in prehistoric times. So originally, St Paul’s Island wasn’t an island, it was connected to the mainland, and mammoths and other animals like bears were able to roam around the whole area.
ROSIE: Then the climate warmed up and the sea level began to rise, and the island got cut off from the mainland. So 【Q23】 those mammoths on the island couldn’t escape; they had to stay on the island.
MARTIN: And in fact the species survived there for thousands of years after they’d become extinct on the mainland.
TUTOR: So why do you think they died out on the mainland?
ROSIE: No one’s sure.
MARTIN: Anyway, next we’ll explain how Graham and his team identified the date when the mammoths became extinct on the island. They concluded that 【Q24】 the extinction happened 5,600 years ago, which is a very precise time for a prehistoric extinction. It’s based on samples they took from mud at the bottom of a lake on the island. They analysed it to find out what had fallen in over time – bits of plants, volcanic ash and even DNA from the mammoths themselves. It’s standard procedure, but it took nearly two years to do.
TUTOR: So why don’t you quickly go through the main sections of your presentation and discuss what action’s needed for each part?
MARTIN: OK. So for the introduction, we’re using a visual, so once we’ve prepared that we’re done.
ROSIE: I’m not sure. I think 【Q25】 we need to write down all the ideas we want to include here, not just rely on memory. How we begin the presentation is so important …
MARTIN: You’re right.
ROSIE: The discovery of the mammoth tooth is probably the most dramatic part, but we don’t have that much information, only what we got from the online article. I thought maybe 【Q26】 we could get in touch with the researcher who led the team and ask him to tell us a bit more.
MARTIN: Great idea. What about the section with the initial questions asked by the researchers? We’ve got a lot on that but we need to make it interesting.
ROSIE: We could 【Q27】 ask the audience to suggest some questions about it and then see how many of them we can answer. I don’t think it would take too long.
TUTOR: Yes that would add a bit of variety.
MARTIN: Then the section on further research carried out on the island – analysing the mud in the lake. I wonder if we’ve actually got too much information here, should we cut some?
ROSIE: I don’t think so, but it’s all a bit muddled at present.
MARTIN: Yes, 【Q28】 maybe it would be better if it followed a chronological pattern.
ROSIE: I think so. The findings and possible explanations section is just about ready, but we need to practice it 【Q29】 so we’re sure it won’t overrun.
MARTIN: I think it should be OK, but yes, let’s make sure.
TUTOR: In the last section, relevance to the present day, you’ve got some good ideas but this is where you need to move away from the ideas of others and 【Q30】 give your own viewpoint.
MARTIN: OK, we’ll think about that. Now shall we …
Choose the correct letter, A, B or C.
Woolly mammoths on St Paul’s Island
听前预测：定位词 introduce、presentation；提示词 How。此题应选择双方讨论后得出的最终方案。
题目解析：在审题时可将三个选项中的关键词标出：A 选项中的 drawing、B 选项中的 timeline、C 选项中的 video clip。Rosie 先提出可以用 video clip，但被她自己以 a bit childish 否定掉了；接着她又提议用 diagram，具体方式为 timeline；随后， Martin 提出用 drawing 的方式，但他自己又否定了这个提议，并说“let’s go with your last suggestion”，因此答案为 B。
听前预测：定位词 mammoth tooth、Russell Graham；提示词 surprising。此题要求选择使人感到惊讶的事实。
题目解析：在 tutor 提到 mammoth tooth 时，Rosie 的回答中有和 A 选项相关的词汇，但她说的是牙齿如同刚从下颚骨上拔下来的一样，与 A 选项（牙齿仍然嵌在下颚骨
中）的内容不符。之后她又说在北美大陆发现的猛犸象的骨头比这个牙齿要更久远，与 C 选项（牙齿没有其他地方发现的猛犸象遗骸的历史久远）的内容相符，而且接下来又听到“So this was really amazing.”，其中 amazing 对应题干中的 surprising，因此答案为 C。B 选项在文中未提及。
听前预测：定位词 animated diagram；提示词 how。此题要求选择使用动画图解的目的。
题目解析：animated diagram 在文中原词重现后，先是听到 Martin 说“to show the geography of the area”（展示这个地方的地理变化），之后他解释了这个小岛曾经是大陆的一部分，并且提及了 C 选项中的 other animals，但这只是发生地理变化前的情形，所以不能选 C 选项。接着 Rosie 补充了 diagram 的后续内容，从后文中的 climate、sea level、cut off from the mainland 等词可以看出她说的依旧是和地理相关的信息，其中“those mammoths on the island couldn’t escape: they had to stay on the island”，与 A 选项（猛犸象是怎么被隔绝在岛上的）的内容相符，因此答案为 A。B 选项与原文意思不符。
听前预测：定位词 date、extinction；提示词 unusual。此题需要选择猛犸象灭绝时间的不同寻常之处。
题目解析： Martin 提到灭绝时间后，对此的评价为“which is a very precise time for a prehistoric extinction”，其中 precise 与 A 选项中的 exact 为同义替换，因此答案为 A。 此外，B 选项在文中未提及。后文虽有对如何确认这个日期的方法的描述，即 C 选项，但说的是“It’s standard procedure”，与题干中的 unusual 不符，所以排除。