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
37
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 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://tihaiku.com/zcyy/3015245.html
相关试题推荐
[originaltext]EdgarPoe,anAmericanwriter,wasbornin1809.Hisparents
[originaltext]EdgarPoe,anAmericanwriter,wasbornin1809.Hisparents
[originaltext]Farmersusuallyuseploughstopreparetheirfieldsforplant
[originaltext]Farmersusuallyuseploughstopreparetheirfieldsforplant
[originaltext]Morethanfiftyyearsago,theUnitedNationsdeclaredthatl
[originaltext]W:Hello,Patrick,isthatyou?M:YeahJane,whatcanIdofory
[originaltext]W:Hello,Patrick,isthatyou?M:YeahJane,whatcanIdofory
[originaltext]M:DidyouhearabouttheaircrashthatoccurredinSouthAmeric
[originaltext]25yearsago,RayAnderson,asingleparentwithaone-year-o
[originaltext]M:Hi,Anna!Welcomeback!HowwasyourtriptotheStates?W:Ve
随机试题
AYourpassport.BYourchildren’spassports.CYourPoliceRegistra
HowlonghasthewriterservedasaseniorclerkintheP&GProductsCompany?[b
TVLinkedtoLowerMarks[A]Theeffectoftelevisionon
以下文件格式中,()不是声音文件。A.Wave文件(.WAV) B.MPEG文
共用题干 Farmers'MarketsCharlotteHollins
3.3.9发电机操作 3.3.9.1发电机在开机前、停机后必须进行有关项
妄想性障碍又称为()。 (A)急性短暂性精神障碍(B)偏执性精神障碍 (
外渗性黏液囊肿的特点为A、复层鳞状上皮衬里 B、假复层纤毛柱状上皮衬里 C、
项目团队考核的内容包括()。A.工作效率 B.工作纪律 C.工作质量 D.
A.先兆流产 B.难免流产 C.过期流产 D.不全流产 E.完全流产容易
最新回复
(
0
)