首页
登录
职称英语
[originaltext]W: Professor Marnes, I wonder if you can fill me in on your lectu
[originaltext]W: Professor Marnes, I wonder if you can fill me in on your lectu
游客
2023-09-15
65
管理
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、Why species don’t avoid extinction by adapting.
B、Why species become extinct at the rate they do.
C、Why humans aren’t extinct.
D、How many species aren’t extinct.
答案
A
解析
What puzzles the woman about extinction?
根据对话中女士所说的I thought they were continuously improving themselves. Natural selection….可知,女士对物种不能够通过适应环境来避免灭绝这一问题感到很困惑,故答案为A。选项中的adapting对应对话中的 improving themselves。
转载请注明原文地址:https://tihaiku.com/zcyy/3015244.html
相关试题推荐
[originaltext]Pursesnatchingisanincreasinglycommoncrime.Therearees
[originaltext]"Hightech"and"stateoftheart"aretwoexpressionsthatd
[originaltext]"Hightech"and"stateoftheart"aretwoexpressionsthatd
[originaltext]Wehumanshavefoundcountlessmysteriesoftheuniversewith
[originaltext]M:Oneofthemostcommonquestionsweaskaboutpeople’sbehavio
[originaltext]M:Oneofthemostcommonquestionsweaskaboutpeople’sbehavio
[originaltext]M:Excuseme.Areyougoingtobuyconcerttickets?W:Yes,Iam.
[originaltext]M:Excuseme.Areyougoingtobuyconcerttickets?W:Yes,Iam.
[originaltext]UniversityteachingintheUnitedKingdomisverydifferenta
[originaltext]UniversityteachingintheUnitedKingdomisverydifferenta
随机试题
What’sthesceneryinSwitzerlandlike?Hereyouhavesomeofthefinestand____
Shoulddoctorseverlietobenefittheirpatients–tospeedrecoveryorto
[originaltext]M:Well,it’saone-bedroomapartment.Themonthlyrentis$650,
消火栓系统中,下列触发信号可以联动启动消防水泵的有()。A.消火栓按钮的
三组资料的方差齐性检验有统计学意义,可认为()A.σ,σ,σ都不相等 B.
起重机械馈电裸滑线与周围设备的安全距离应符合相关规定,其中距易燃气体及液体管道的
下列描述中不符合“感知综合障碍”的涵义的是()。 (A)感知客观事物的个别属
根据增值税法律制度的规定.一般纳税人提供的下列服务中.可以选择适用简易计税方法计
腹部闭合性损伤病人,腹部X线平片发现腹膜后积气,最可能的损伤部位是A.横结肠
采用过程控制的方法控制施工成本时,控制的要点有()。A.材料费同样采用“量
最新回复
(
0
)