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
2023-08-07
49
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:http://tihaiku.com/zcyy/2905824.html
相关试题推荐
[originaltext]Objectsthatarevibratingmakesounds.Rhythmicsoundvibrations
[originaltext]Objectsthatarevibratingmakesounds.Rhythmicsoundvibrations
[originaltext]Objectsthatarevibratingmakesounds.Rhythmicsoundvibrations
[originaltext]Inorderforachemicaltobeconsideredadrug,itmusthavethe
[originaltext]Hi,everybody.AsIsaidinmyStateoftheUnionaddress,weliv
[originaltext]Hi,everybody.AsIsaidinmyStateoftheUnionaddress,weliv
[originaltext]IntheUnitedStates,manypeopleoncelivedinlarge,two-and-th
[originaltext]Easterisamixofthreetraditions:Pagan,HebrewandChristian.
[originaltext]Easterisamixofthreetraditions:Pagan,HebrewandChristian.
[originaltext]W:2millionhighschoolseniorsaregearingupthisfalltoappl
随机试题
Completethenotesbelow.ChooseNOMORETHANTHREEWORDSfromthepassagefore
Therocketengine,withitssteadyroarlikethatofawaterfallorathunde
6月份,某铝型厂预计9月份需要500吨铝作为原料,当时铝的现货价格为53000元/吨,因目前仓库库容不够,无法现在购进。为了防止铝价上涨,该厂决定在上海期货交
目前,国内期货公司除了可申请经营境内期货经纪业务外,还可以申请()。A、资产管理业务B、期货投资咨询业务C、境外期货经纪业务D、期货自营业务A
[originaltext]MostschoolsintheUnitedStatesreceivemoneyfromfederal
二十八岁孕妇,GP,孕37W+5D,宫口开全2小时,羊水胎粪污染,先露S,胎心9
某全预应力混凝土桥梁静载试验,采用电阻应变片和静态应变仪检测结构应变,试完成下述
从牙龄上看早期矫治时期不包括A.萌出4颗乳前牙 B.乳牙完全萌出 C.下前牙
7、线圈切割相邻线圈磁通所感应出来的电动势,称互感电动势。()
在账务处理模块中,常见的参数设置包括:()和出纳凭证是否必须经过出纳签字、是否对
最新回复
(
0
)