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
2023-09-02
45
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、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 exploiting the environment.
答案
D
解析
Why is the professor not so sure humans will never become extinct?
转载请注明原文地址:https://tihaiku.com/zcyy/2978475.html
相关试题推荐
[originaltext]M:HaveyougotyourNewYearshoppingdoneyet?W:Almost.Igot
[originaltext]M:HaveyougotyourNewYearshoppingdoneyet?W:Almost.Igot
[originaltext]TheeducationalTVshowforkids"SesameStreet"willcelebra
[originaltext]TheeducationalTVshowforkids"SesameStreet"willcelebra
[originaltext](30)Studentsseekingsuccessshouldlookformentorsamongri
[originaltext](30)Studentsseekingsuccessshouldlookformentorsamongri
[originaltext]W:I’mFaithSmith.Thisweekonourprogram,wewilllookatinte
[originaltext]W:I’mFaithSmith.Thisweekonourprogram,wewilllookatinte
[originaltext]W:I’mFaithSmith.Thisweekonourprogram,wewilllookatinte
[originaltext]W:Ican’tconcentrateonthisfinalreportanylonger.MaybeIs
随机试题
Acertainintegernisamultipleofboth5andMustnbeamultipleof15?15The
[originaltext]"WhereistheUniversity?"isthequestionmanyvisitorstoC
Thepopularnotionthatolderpeopleneedlesssleepthanyoungeradultsisamy
Therearesomestepsyoucantaketoavoidcatchingacold.Contrarytopopul
Thereisvirtuallynolimittohowonecanservecommunityinterests,froms
()是我国交通运输深化改革、加快发展的关键时期,也是中国交通发展史上规模最
色谱法用于定量的参数是()。A:峰面积 B:保留时间 C:保留体积 D:
游客不得在托运的行李中或随身携带的物品有()A:丁烷 B:松香水 C:水果刀
某投资者预通过蝶式套利方法进行交易。他在某期货交易所买入2手3月铜期货合约,同时
下列财务指标中,数值越高,表明企业资产的盈利能力越强的指标是()。 A
最新回复
(
0
)