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
2023-08-19
51
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.
9. What is the most dangerous thing about a volcano?
10. Where did the last eruption of super volcano occur?
11. How can scientists predict the future of volcanoes?
选项
A、The erupted lava
B、The destructive ash.
C、The unbearable heat.
D、The poisonous gas.
答案
B
解析
B是反复明确听到的信息。A先被女士提及,但随即被男士否定。原文出现了最高级the biggest killer,之后的内容就是答案所在。
转载请注明原文地址:https://tihaiku.com/zcyy/2939824.html
相关试题推荐
[originaltext]AmericanvisitorstoEasternAsiaareoftensurprisedandpuz
[originaltext]InBritainthebiggestnumberofworkingforeignerscomesfro
[originaltext]InBritainthebiggestnumberofworkingforeignerscomesfro
[originaltext]Thefamilyischanging.Inthepast,grandparents,parents,a
[originaltext]Thefamilyischanging.Inthepast,grandparents,parents,a
[originaltext]M:I’msotired,Ican’tseestraight.W:You’vebeentiredalot
[originaltext]W:Haveyouevervisitedaredwoodforest?Irecentlyhadachanc
[originaltext]W:Haveyouevervisitedaredwoodforest?Irecentlyhadachanc
[originaltext]M:I’mlookingforanunfurnishedtwo-bedroomapartment,butall
[originaltext]M:I’mlookingforanunfurnishedtwo-bedroomapartment,butall
随机试题
Clarkfeltthathis______inoneofthemostdramaticmedicalexperimentsofal
【B1】[br]【B6】[audioFiles]audio_eufm_j01_322(200910)[/audioFiles]stimulate句意推断题
MayraAvilaislookingforwardtoherhighschoolprom.Avila,18,theWest
牙种植术的概念正确的是A.将未发育完成的牙胚植入牙槽骨内的手术 B.将人工牙植
《精神药品管理办法》规定,精神药品分为第一类和第二类的依据是A、对中枢神经系统兴
检测外周血致敏T细胞与下列变态反应有关的是A.Ⅰ型B.Ⅱ型C.Ⅲ型D.Ⅳ型E.Ⅰ
Thechangeinthatvillagewasmiraculou
A.0 B. C. D.
社会主义新农村建设的中心环节是( )。A.生产发展 B.生活宽裕 C.乡风
(2020年真题)经济波动周期对商业银行经营状况的影响主要有()。A.在衰
最新回复
(
0
)