首页
登录
职称英语
[originaltext]W: Professor Smith, I wonder if you can fill me in on your lectur
[originaltext]W: Professor Smith, I wonder if you can fill me in on your lectur
游客
2024-04-26
35
管理
问题
W: 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: 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, 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.
W: Frightening thought, isn’t it?
Questions 13 to 15 are based on the conversation you have just heard.
13. Why does the woman go to see the professor?
14. What puzzles the woman about extinction?
15. Why is the professor not so sure humans will never become extinct?
选项
A、Because human beings are powerful enough to kill one another.
B、Because every species will become extinct by natural selection.
C、Because there is over-population that will make the earth explode.
D、Because human beings are a young species exploiting their environment.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3572171.html
相关试题推荐
[originaltext]Untilthe20thcentury,mostpaintingswererepresentational.
[originaltext]Untilthe20thcentury,mostpaintingswererepresentational.
[originaltext]W:Youenjoygoingthroughsecondhandbookstores,don’tyou?It’s
[originaltext]W:Youenjoygoingthroughsecondhandbookstores,don’tyou?It’s
[originaltext]W:Youenjoygoingthroughsecondhandbookstores,don’tyou?It’s
[originaltext]M:Todaytimehasgonebysoquickly!Doyouestimatehowlonga
[originaltext]W:You’vebeentravelingallyourlife.Whenareyougoingtoset
[originaltext]W:You’vebeentravelingallyourlife.Whenareyougoingtoset
[originaltext]W:You’vebeentravelingallyourlife.Whenareyougoingtoset
[originaltext]W:You’vebeentravelingallyourlife.Whenareyougoingtoset
随机试题
在项目决策阶段,可作为工程投资确定的重要依据的工程技术文件有()。A.项目意
A. B. C. D.
下列关于防爆电气设备的防爆原理说法中,错误的是()。A.无火花型电气设备的防
()应当在工程竣工验收后()个月内,向城建档案馆报送一套符合规定的建设工程档
甲公司2019年1月1日经营租入一项房产,每年租金为600万元,租期为3年,每年
共用题干 陆先生目前每月工资5000元。公司有两套员工激励方案:甲方案是“双薪
下列不属于学校教育法律关系内容的是() A.学校与政府B.学校与社会 C
设计深度为20m的基坑,其应测项目不包括( )。A.支护桩(墙)顶部水平位移
室内环境质量验收,应在工程完工至少( )d以后进行。A.5 B.7 C.1
发生下列()事项时,发承包双方应当按照合同约定调整合同价款。A.工程变更 B.
最新回复
(
0
)