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
2023-08-31
27
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 are also 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.
Questions 19 to 22 are based on the conversation you have just heard.
19. Why did the woman go to see the professor?
20. What puzzles the woman about extinction?
21. Why is the professor not so sure that humans will never become extinct?
22. What is inferred by the professor at the end of the lecture?
选项
A、Flies will take over the earth.
B、Human will die off quite soon.
C、Mass disease could lead to the human extinction.
D、Human beings are destructive.
答案
C
解析
选项中重复出现的He thinks表明,本题可能与男士的观点或看法有关。对话末尾男士提到家蝇的数量比人类要多得多,而且每一只都具有迅速在人类中传播疾病的能力。由此可推断,教授认为大规模的疾病传播可能是导致人类灭绝的另一个原因,故答案为C)。
转载请注明原文地址:https://tihaiku.com/zcyy/2973571.html
相关试题推荐
[originaltext]Asthetwentiethcenturybegan,theimportanceofformaledu
[originaltext]Magnificent,peaceful.Justtwowordstodescribethesceni
[originaltext]PeoplefellinlovewithElizabethTaylorin1944,whenshes
[originaltext]W:Hello,Michael.Wouldyoucometomyofficeforaminute?Iwa
[originaltext]W:Hello,Michael.Wouldyoucometomyofficeforaminute?Iwa
[originaltext]W:Hello,Michael.Wouldyoucometomyofficeforaminute?Iwa
[originaltext]W:Hello,Michael.Wouldyoucometomyofficeforaminute?Iwa
[originaltext]F:SusanBauerspeaking.M:Dr.Bauer,mynameisTomWhite.Myr
[originaltext]W:Howdoyoulikeyournewtenantwhomovedtoyourapartmentla
[originaltext]W:Howdoyoulikeyournewtenantwhomovedtoyourapartmentla
随机试题
Whydoesthestudentgotoseetheprofessor?[br]Whydoestheprofessordiscus
火灾时排烟系统启动后,排烟风机入口处的()在280℃关闭后直接联动排烟风机停止
Thechangeinthatvillagewasmiraculou
下列关于大肠埃希菌,错误的是A.有外毒素 B.革兰染色阴性 C.分解乳糖
下列教师在师生沟通中的体态语不恰当的是( )。 A.保持善意的目光接触
《静夜思》是小学一年级语文课文中的一首诗,请根据你的知识完成以下问题。
关于先天性梅毒牙,不正确的是A.是由于梅毒螺旋体感染使釉质发育障碍 B.病变在
男,55岁。缺失,近远中邻牙均向缺隙倾斜,设计固定义齿时应注意A.基牙的支持力
分类管理的计量器具规定包括()。A.A类计量器具执行强检 B.A类计量器具原
第一类危险源是事故发生的物理本质,危险性主要表现为导致事故而造成后果的严重程度方
最新回复
(
0
)