首页
登录
职称英语
[originaltext]W: [5]Professor Smith, I wonder if you can fill me in on your lec
[originaltext]W: [5]Professor Smith, I wonder if you can fill me in on your lec
游客
2024-04-06
40
管理
问题
W: [5]Professor Smith, 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: [6]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 human.
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, [7]but now, of course, we survive by ingenuity!
W: So we may never become extinct.
M: [8]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.
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.
W: Frightening thought, isn’t it?
Questions 5 to 8 are based on the conversation you have just heard.
5. Why does the woman go to see the professor?
6. What puzzles the woman about extinction?
7. What does the professor say about human beings’ survival?
8. Why is the professor not so sure humans will never become extinct?
选项
A、Humans got help from other species.
B、Humans survive by exploration.
C、Humans survive by ingenuity.
D、Humans survive by luck.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3542886.html
相关试题推荐
[originaltext]Letmewarnyouagainstamistakethathistoriansofscienceo
[originaltext]Nowwe’vebeentalkingabouttherevolutionaryperiodinthe
[originaltext]I’mgoingtopassthispieceofamberaroundsoyoucanseeth
[originaltext]Californiaisalandofvarietyandcontrast.Almosteverytyp
[originaltext]Californiaisalandofvarietyandcontrast.Almosteverytyp
[originaltext]Californiaisalandofvarietyandcontrast.Almosteverytyp
[originaltext]VietnameseauthoritiesreportedonMondaythatbirdfluhassp
[originaltext]VietnameseauthoritiesreportedonMondaythatbirdfluhassp
[originaltext]M:SoJanice,youwerelookingatidentifyingdifferenttalentsi
[originaltext]M:SoJanice,youwerelookingatidentifyingdifferenttalentsi
随机试题
Valencia(巴伦西亚)isintheeastpartofSpain.Ithasaportonthesea,twomi
Whydoweinvestsomuchhopeinnewtechnologyandwhyarewesodisappoint
Foradmissionsofficers,reviewingapplicationsislikefinal-examweekfors
根据作业成本管理原理,某制造企业的下列作业中,属于增值作业的是()A.产品检验作
2009年,某省全年粮食作物播种面积253.85万公顷,比上年增长1.5%;
下列对影响债券价格波动性的因素的说法,正确的是()。A.债券的票面利率越低,波
分娩后子宫约重A.50g B.60g C.50~60g D.500g E
从所给四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性:
根据业务规则等规定,主办券商是指在全国股份转让系统从事以下哪些 业务的证券公司
藿胆丸除清热通窍外,又能A.化痰散结 B.芳香化浊 C.清热解毒 D.祛痰
最新回复
(
0
)