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
2023-09-09
75
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: So 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 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.
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
四个选项都是由疑问词引导,均使用的是正常语序,故本题应该是针对what提问,内容很可能与物种灭绝有关。根据对话中女士提到的Why do they die off?…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。
转载请注明原文地址:http://tihaiku.com/zcyy/3000208.html
相关试题推荐
[originaltext]Smokingisevenmoredangerousthanpreviouslybelieved,acco
[originaltext]Smokingisevenmoredangerousthanpreviouslybelieved,acco
[originaltext]Smokingisevenmoredangerousthanpreviouslybelieved,acco
[originaltext]Theremaybemanypeoplewhowanttoworkasanewsreporter.
[originaltext]Theremaybemanypeoplewhowanttoworkasanewsreporter.
[originaltext]W:Hello,Steven.Howareyou?M:Nottoobad,thankyouAnn.How
[originaltext]W:Hello,Steven.Howareyou?M:Nottoobad,thankyouAnn.How
[originaltext]M:Wherehaveyoubeen?Iwasjustabouttogiveuponyou.F:So
[originaltext]M:Wherehaveyoubeen?Iwasjustabouttogiveuponyou.F:So
[originaltext]M:Wherehaveyoubeen?Iwasjustabouttogiveuponyou.F:So
随机试题
WhydidthemangotoSeychelles?[br][originaltext]Chris:I’veheardthatyo
安全检查的内容是()。A.查思想 B.查管理和查隐患 C.查方案 D.查
下列属于的发育阶段之一的是A.尖牙 B.组牙 C.开 D.替牙 E.正中
金融资产管理公司作为以经营不良资产为主要业务的银行金融机构,一般金融机构所具有的
AA BB CC DD
期货公司董事、监事和高级管理人员在任职期间擅离职守,造成严重后果的,中国证监会及
年轻恒牙牙髓组织特点中正确的是A、髓腔大,组织疏松,纤维成分多,细胞成分少 B
公共题干: “集装箱号”栏应填( ). A.YMLU4456789(1
某公司决定通过内部招募来填补职位空缺,适用的方法是()。A.发布媒体广告 B
火力发电厂采用柴油发电机作交流保安电源时,需对柴油机1h的负载能力(1.1px进
最新回复
(
0
)