首页
登录
职称英语
[originaltext]M: Good morning, class.W: Good morning, sir.M: Today we’ll disc
[originaltext]M: Good morning, class.W: Good morning, sir.M: Today we’ll disc
游客
2023-08-17
54
管理
问题
M: Good morning, class.
W: Good morning, sir.
M: Today we’ll discuss volcanoes. Can you tell me the most dangerous thing about a volcano?
W: I think the most dangerous hazard of a volcano comes from the lava that flows out of it.
M: Good guess. Although your answer makes sense, the biggest killer from a volcano comes from the ash, not the lava. In fact, ash causes serious problems and can make humans and animals sick; it can even kill them. Ash also reduces sunlight and can start heavy rainfalls that lead to mudslides. Did you know that it only takes 30 centimeters of dry ash to collapse a roof of a building? Ash also contaminates water supplies, and kills crops. As you can see, ash causes the most destruction.
W: Professor, are there different sizes of volcanoes?
M: Absolutely. There are ordinary volcanoes that can kill thousands of people and often destroy whole cities, and there are super volcanoes which are highly explosive and can kill billions of people and even destroy an entire continent.
W: Are there any super volcanoes in the world today?
M: Actually, yes. There are 40 super volcanoes. One is in Yellowstone National Park in the United States and two others in Britain. Super volcanoes are quite rare with the last eruption occurring about 74,000 years ago in Indonesia.
W: How do super volcanoes differ from ordinary volcanoes and are they easy to find?
M: By and large, most people would not be able to recognize a super volcano. Like an iceberg, the larger part of a volcano is hidden.
W: Professor, if the volcano hasn’t erupted then how do scientists know what might happen?
M: Well, the scientists are relying on past information from the volcano that erupted in Indonesia and they also forecast their predictions using computer models.
1. What is the most dangerous thing about a volcano?
2. Where did the last eruption of super volcano occur?
3. Why are super volcanoes not easy to find?
4. How can scientists predict the future of volcanoes?
选项
A、By observing the ordinary ones that have already erupted.
B、By studying the underground part of a volcano.
C、By tapping their potential of imagination.
D、By resorting to past information and modern technology.
答案
D
解析
D是男士最后一句话的同义概括。
转载请注明原文地址:https://tihaiku.com/zcyy/2934533.html
相关试题推荐
[originaltext]W:WelcometothiseditionofTalkoftheNationWe’retalkingth
[originaltext]W:Sitdown,please,Mr.Black.Ihopeyouenjoyedyourjourney.
[originaltext]W:Sitdown,please,Mr.Black.Ihopeyouenjoyedyourjourney.
[originaltext]Asinglecigarettesoldonastreetcornermaynotcostalot
[originaltext]Asinglecigarettesoldonastreetcornermaynotcostalot
[originaltext]Moderator:HelloLadiesandGentlemen,itgivesmegreatplea
[originaltext]Thefirstyearofcollegeisusuallyatimetolearnandhave
[originaltext]Thefirstyearofcollegeisusuallyatimetolearnandhave
[originaltext]Thefirstyearofcollegeisusuallyatimetolearnandhave
[originaltext]JapanandGermanyhavetheworld’soldestpopulations,butne
随机试题
TheclimateinLondonisquitepleasant,thetemperaturerarely,ifany,______3
NarratorListentoapartofadiscussioninabusinessclass.Theprofessor
[originaltext]TheUN’sWorldFoodProgram(WFP)andAgricultureandFoodOr
如病人需行较大手术,预示术后可能出现呼吸功能不全的情况有A.肺活量低于预计值的6
依次填入划横线处的语句,衔接最恰当的一组是: 唐诗以韵胜,贵________;
共用题干 KnittingMymotherknewhowtoknit
根据产品的整体概念。产品的三个层次包括核心产品、有形产品和()。A.服务 B
规划环境影响评价的主要内容有( )。A.环境影响总结与评价 B.规划方案综合论
在超高压线路的并联电抗器上,装设中性点小电抗器的作用是下列哪项?()A.限制合
女,50岁,乙型肝炎病史30余年。2小时前进食烧饼后突然出现呕血,量约800ml
最新回复
(
0
)