首页
登录
职称英语
"Caverns"[img]2012q1/ct_etoefm_etoefspeakc_1513_20121[/img] Now listen t
"Caverns"[img]2012q1/ct_etoefm_etoefspeakc_1513_20121[/img] Now listen t
游客
2024-01-04
32
管理
问题
"Caverns"
Now listen to part of a lecture in a geology class. The professor is discussing caverns.
Question
Using the main points and examples from the lecture, describe the two kinds of rock formations in a cavern, and explain how the professor helps his students remember the difference between the two.
Preparation Time:20 seconds
Preparation Time:60 seconds
[Narrator 2] Number 6. Listen to part of a lecture. Then listen for a question about it. After you hear the question, you have 20 seconds to prepare, and 60 seconds to record your answer.
[Narrator 1] Now listen to part of a lecture in a geology class. The professor is discussing caverns.
[Professor]
Okay, as you’ll recall, caves form in limestone when acidic groundwater follows some kind of weakness in the rocks. Now the rock formations in a cavern... that’s the technical name that we use for a cave... the rock formations there are of two kinds... stalactites and stalagmites. Both of these formations are water that contains dissolved minerals that... that accumulate and build deposits. But stalactites hang down from the ceiling of the cavern, and stalagmites protrude up from the floor of the cavern. Well, these words sound a lot alike, and this can be confusing, so I always tell my students to remember that there is a t in stalactites, and the t has a tail that hangs down just like the stalactites that hang down from the ceiling of the cave, but there is an m in stalagmites and the points on an m stick up like the stalagmites that protrude up from the ground in a cave. And if that doesn’t work for you, another way to remember the difference is that stalactite has a c in it, and so does the word ceiling, whereas stalagmite has a g in it, and so does the word ground. So stalactites drip down from the ceiling and stalagmites build up from the ground. So with these little tricks for remembering the difference, I expect you all to get this right on the next quiz.
[Narrator 1] Using the main points and examples from the lecture, describe the two kinds of rock formations in a cavern, and explain how the professor helps his students remember the difference between the two.
[Narrator 2] Please prepare your answer after the beep.
Beep
[Preparation time: 20 seconds]
[Narrator 2] Please begin speaking after the beep.
Beep
[Recording time: 60 seconds]
Beep
选项
答案
Responses will vary
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3333572.html
相关试题推荐
NarratorListentoapartofaconversationinanoffice.[img]2011q1/ct_etoe
NarratorListentoapartofalectureinanecologyclass.[img]2011q1/ct_et
NarratorListentoapartofalectureinanecologyclass.[img]2011q1/ct_et
NarratorListentoapartofalectureinacomputerclass.[img]2011q1/ct_et
NarratorListentoapartofalectureinacomputerclass.[img]2011q1/ct_et
NarratorListentoapartofalectureinacomputerclass.[img]2011q1/ct_et
NarratorListentoapartofaconversationbetweenastudentandaprofessor
NarratorListentoapartofaconversationbetweenastudentandaprofessor
NarratorListentoapartofaconversationbetweenastudentandaprofessor
NarratorNowlistentoapartofatalkinabusinessclass.[img]2011q1/
随机试题
Itisgenerallyacceptedthatpeopleshouldvisittheiragedparentsregularl
Washington,D.C.issonamedbecauseitissituatedintheStateofWashington.
Doctorsandresearchershavebeguntolookforcausesofoverweightinacri
细水雾灭火系统可以直接扑灭可燃气体火灾。()
企业定额的作用表现在()。A.是企业计划管理的依据 B.是国家宏观调控的依
工程非法承包,偷工减料,这是施工项目质量问题中()的原因。A.违反法规行为
除胰岛功能低下外,主要引起血糖超过正常参考区间高限的疾患是A.酒精中毒 B.激
早孕反应不包括()A.恶心 B.呕吐 C.食欲减退 D.喜食酸物 E.失
下列选项中,属于审计质量控制措施的是()。A.要求所有审计人员必须保持独立性
投资项目决策分析与评价的基本要求包括贯彻落实科学发展观、资料数据准确可靠和()
最新回复
(
0
)