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
2013-06-02
70
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. (19) Although your answer 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. (19) 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 (20) 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, (21) the scientists are relying on past information from the volcano that erupted in Indonesia and they also forecast their predictions using computer models.
19. What is the most dangerous thing about a volcano?
20.Where did the last eruption of super volcano occur?
21.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 modem technology.
答案
D
解析
D是最后一句话的同义概括。
转载请注明原文地址:https://kaotiyun.com/show/g167777K
0
大学英语六级
相关试题推荐
A、Supplytheirownlight.B、Locatefoodandenemies.C、Compensateforthelackoflight.D、BothBandC.D细节归纳题文章开头讲到几百种海洋生物能够在
Internationalairlineshaverediscoveredthebusinesstravelers,themanorwomanwhoregularlyjetsfromcountrytocountryas
Dr.GregoryConnollyisdirectoroftheofficefornon-smokingandhealthintheMassachusettspublichealthdepartment.Hesaid
SocialNetworkingAlargebutlong-in-the-toothtechnologycompanyhopingtobecomeabiggerforceinonlineadvertisingbu
ThereissomethingbadlywrongwiththewaystandardsforschoolsciencebeingsetintheUS.WhentheTexasStateBoardofEduc
TelevisionhastransformedpoliticsintheUnitedStatesbychangingthewayinwhichinformationisdisseminated,byalteringp
OnthelastshoppingdaybeforeChristmas,storesacrosstheUnitedStateswerebusybutnotjam-packedasshoppersscrambledfo
Name-callingandteasingareoverwhelminglythemaintypeofclassroombullying,saysastudyfundedbytheJapaneseMinistryof
Chinesefamiliesaretraditionallyknownforvaluingtheeducationoftheirchildren.Mostparentsaretryingto【B1】______their
A、It’squitedifferentwhenpronouncedinFrenchandEnglish.B、TowritewithoutusingitisdifficultbothinEnglishandinFr
随机试题
甲到照相馆拍摄个人写真,摄影师乙未经甲同意而偷偷留下甲的照片,并将其卖给丙出版社用做挂历。后来乙又将该照片送给丁服装厂做某牌内衣的广告。在本案中侵犯甲的肖像权的是()。
患者,女,34岁。甲状腺功能亢进症行甲状腺大部切除术后当晚,发热,体温39.5℃,大汗,呕吐胃内容物3次,给予胃复安10mg肌注止吐无效。体检:心率125次/分,切口敷料干燥,双肺呼吸音清晰。该患者的并发症确诊后,估计预后不良,其死亡率可高达
脑神经共有
对于闸阀、球阀和截止阀来说,其作用为(),闸阀安装在水平管道上,球阀可迅速关断或开启,截止阀一般用在严密性较高的场合。
不属于索赔证据的有()。
Everyoneneedsfriends.Weallliketofeelclosetosomeone.Itisnicetohaveaf【K11】______totalk,laughanddothingswith
职业倦怠是个体在长期的职业压力下,缺乏应对资源和应对能力而产生的身心耗竭状态。教师职业倦怠是指由于长期的工作压力,导致教师的认知、态度、情感和行为等方面出现问题。调查显示,很多工作多年的中小学教师都出现了职业倦怠现象。教师们对学校教学工作产生了困惑,认
抗生素的发明和使用,使病菌一度不再是人类的致命威胁。但是,在人类使用抗生素治疗疾病的同时,病菌的耐药性也在增加,由于滥用抗生素,出现了目前难以控制的“超级病菌”。上述事实表明()。
阅读以下说明,回答问题。[说明]某学校拟组建一个小型校园网,具体设计如下。(1)设计要求。①终端用户包括:48个校园网普通用户;一一个有24个多媒体用户的电子阅览室:一个有48个用户的多媒体教室(性能要求高于电子阅览室)。
有以下程序:#include<stdio.h>main(){intc=35;printf("%d\n",e&c);}程序运行后输出结果是()。
最新回复
(
0
)