首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、By observing the ordinary ones that have already erupted. B、By studying the larger part of a volcano hidden underground. C、By
A、By observing the ordinary ones that have already erupted. B、By studying the larger part of a volcano hidden underground. C、By
admin
2021-07-14
69
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、By observing the ordinary ones that have already erupted.
B、By studying the larger part of a volcano hidden underground.
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://kaotiyun.com/show/DrJ7777K
0
大学英语六级
相关试题推荐
A、Oneofthemanyriders.B、Animportantorganizer.C、Promoterofthisgroupeffortforfreedom.D、Achurchleader.D
A、Tofindouthowmuchtimetheyspendinmakingdecisions.B、Tofindouthowmanyhourstheyspendonbusinessmeetings.C、Tof
A、Theyareofthesameimportanceallthroughone’slife.B、Theywillnotchangeatleastinthenext10years.C、Thebalanceof
TheIndustrialRevolution[A]TheIndustrialRevolutionisthenamegiventothemassivesocial,economic,andtechnologicalchan
A)Reduce,reuse,andrecycle.RecyclinghasbecomeapartofAmericanlife.Italsoisanimportantpartofthewaste-processin
A、Theyarenotreadytofunctionintheworkplace.B、Theydonotgainasmuchasbefore.C、Theircollegeeducationisconsidered
ArecentcaseinAustraliashowshoweasilyfearcanfrustrateaninformant’sgoodintentions.InDecember,awomanwroteanonym
A、Companieswerefightingforthegamingmarket.B、Theysawhigheconomicreturnsinthebusiness.C、Moreandmorepeoplewereu
A、TheUniversityfaculty.B、TheStudentAssociation.C、TheAlumniAssociation.D、ThePresidentoffice.C女士说组织该活动的是校友联合会,故选C。听到什么
A、ContacttheAssociation.B、Typetheessayforher.C、Chooseatopicforher.D、Writealetterofrecommendation.D对话中,女士说她想请男士
随机试题
急腹症病人首优的护理诊断是
以下说法中,正确的是()。
将风险资产进行对冲属于()。
下列情况中,可能获得贷款的是()。
甲公司为境内上市公司且为增值税一般纳税人,销售货物适用的增值税率为16%。2×16年度及2×17年度,甲公司发生的有关交易或事项如下: (1)2×16年1月1日,甲公司与乙公司签订合同约定:甲公司按照乙公司设计的图纸为乙公司建造厂房,合同价格为8000万
我国全面促进网络互联互通和业务融合,努力争取达成()三网融合。
下列社会关系中,不属于民法的调整对象的是()。
地方性法规、规章之间不一致时,应如何适用?
中华民族进入全国性抗战是在
Accordingtothepassage,whatisappliedinteachingtoday?
最新回复
(
0
)