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
2024-04-14
34
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 biggestkiller,之后的内容就是答案所在。
转载请注明原文地址:https://tihaiku.com/zcyy/3554794.html
相关试题推荐
[originaltext]"CharlieGriffin’sBritishpigwasinmypotatoesagain!"bel
[originaltext]"CharlieGriffin’sBritishpigwasinmypotatoesagain!"bel
[originaltext]IntheUnitedStatestoday,therearetwomajorparties—theD
[originaltext]IntheUnitedStatestoday,therearetwomajorparties—theD
[originaltext]IntheUnitedStatestoday,therearetwomajorparties—theD
[originaltext]Theworldhasbecomenoisierplace,sayexpertsattheLibrar
[originaltext]Theworldhasbecomenoisierplace,sayexpertsattheLibrar
[originaltext]W:Hi,John.Howarethingsgoing?M:Oh,hi.Fine.Howaboutyo
[originaltext]W:Hi,John.Howarethingsgoing?M:Oh,hi.Fine.Howaboutyo
[originaltext]W:Willyoutakethesebookstothelibraryduringyourlunchhou
随机试题
WhenpeoplesaythatCambridgeisauniversitytown,theydonotmeanthati
There’snoquestionthattheEarthisgettinghotter.Therealquestionsare:Ho
[originaltext]W:Theairqualityinthiscityisawful![8]Thepollutionlevels
下列选项属于水泵按工作原理可分为()。A.叶片式泵 B.容积式泵 C.真空
下列哪项一般不会引起全口义齿基托折裂A.咬合力不平衡 B.基托较薄 C.牙槽
2012年8月31日,甲公司从乙银行的一笔借款1000万元到期,年利率为6%,由
下列表述中,不符合证券投资基金基本内涵的是()。A.基金投资运作与财产保管相互
下列哪项不是疖病的临床特点A:好发于项后发际部、臀部 B:好发于冬、春季节
胁痛的病理因素主要有A.气滞 B.血瘀 C.湿热 D.寒湿
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
最新回复
(
0
)