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、Because every species becomes extinct. B、Because humans beings are powerful enough to kill other species. C、Because of over-po
A、Because every species becomes extinct. B、Because humans beings are powerful enough to kill other species. C、Because of over-po
admin
2010-01-10
70
问题
W: Professor Marnes, I wonder if you can fill me in on your lecture last Friday. I had to attend a scholarship award ceremony.
M: Oh well, congratulations. I hope you were rewarded handsomely!
W: Well, every bit helps. So, about your lecture, I understand you were talking about extinctions.
M: Yes. Well, the crux of my talk was just that we tend to think of extinction as a dramatic event, but most species die out over quite a period of time.
W: Why do they die off? I thought they were continuously improving themselves. Natural selection, I think you once mentioned.
M: Ah, but you see while there is natural Competition between the species, what determines which species survive is largely by chance.
W: I don’t get it. Why do species bother competing?
M: Well, there are short-term advantages. But many species also are helped by others. For example, the common housefly and cockroaches might have died off years ago if not for humans.
W: But you’re not saying that humans are so successful merely because of chance?
M: To a certain extent, humans were initially lucky enough to have the right weather conditions and a lack of predators, but now, of course, we survive by ingenuity!
W: go we may never become extinct.
M: No, because we may be in a crash course to extinction by our continuous exploitation of the environment. We are a relatively young species and our time is hot yet overdue.
W: But there are 6 billion of us!
M: Yes and there’re many more houseflies too! Each with the capacity to spread one disease from one person to another in a fast period of time.
选项
A、Because every species becomes extinct.
B、Because humans beings are powerful enough to kill other species.
C、Because of over-population.
D、Because human being is still a young species though it is exptoiting the environment.
答案
D
解析
Why is the professor not so sure humans will never become extinct?
根据对话中男士(即教授)所说的 No,because we may be in a crash course to extinction by our continuous exploitation of the environment.We are a relatively young species and our time is not yet overdue可知,教授认为人类目前对环境的不断开发可能会导致人类的灭绝,但由于人类还是相对年轻的物种,所以可能还不会 那么快就面临灭绝的危险,因此答案为D。
转载请注明原文地址:https://kaotiyun.com/show/VhdK777K
0
大学英语六级
相关试题推荐
Theappealofadvertisingtobuyingmotivescanhavebothnegativeandpositiveeffects.Consumersmaybeconvincedtobuyaprod
ItisknowntousthatEnglishisnotasoldasChinese,butitiswidelyusedbymostpeopleallovertheworld.Englishspeaker
What_______wouldhappenfthemanagerknowyouthinkinthatway?
Greateffortsshouldbemadetoinformthepublicoftheterribleconsequencesofneglectingenvironmentalprotection.
Thispartistotestyourabilitytodopracticalwriting.Youarerequiredtowriteabusinessletteraccordingtotheinformat
A、19yearsold.B、20yearsold.C、26yearsold.D、39yearsold.D问题问的是男士的年龄。根据对话,男士从生下来就住在小乡村,并且已经生活了39年了,所以他39岁了。故选D。
A、Theymighthavetochangetheirplan.B、Hehasgoteverythingsetfortheirtrip.C、Hehasaheavierworkloadthanthewoman.
WhatisJohnIngham’sreportabout?RodneyBrookssaysthatitwillbepossibleforrobotstoworkwithhumansasaresultof
Iknownothingabouttheaccident__________(除了我在报上看到的以外).
Thefirewasgainingonus,andtherewas______(除了祈祷外我们无能为力).
随机试题
A.责令改正、给予警告B.追究刑事责任C.吊销负有责任的医疗卫生人员的执业证书D.暂停一年的执业活动E.暂停执业活动六个月到一年实施预防接种的医疗卫生人员未依照规定填写并保存接种记录应
下列关于拔牙创的检查与处理,错误的是
患者,男,45岁。平日急躁易怒,今日因事与人争吵时突感头晕,站立不住,面赤如醉,舌体颤动,脉弦。其证候是
一批货物从中国运往欧洲,运货的货轮到达目的港后,发现所载货物因发霉受损。依《海牙规则》,霉损由于下列哪些原因所致应由承运人承担赔偿责任?()
关于志愿者绩效评估,下列说法正确的有()。
Therefore,theUNisreadytocontinueitspartnershipwithChinatoensurethatanagendaofenvironmentalsustainability,ofcl
在坚持中国特色社会主义文化发展道路的过程中,事关文化改革发展全局的根本问题是()
传统文本都是线性的、顺序的,而超文本则是____________的。
A、Bytakingacourse.B、Verywell.C、Inthemorning.A
Inthispartofthetest,youareaskedtogiveashorttalkonabusinesstopic.Youhavetochooseoneofthetopicsfromthe
最新回复
(
0
)