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
2024-04-06
7
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 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、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/3543865.html
相关试题推荐
Peoplehavewonderedforalongtimehowtheirpersonalitiesandbehaviorsa
Peoplehavewonderedforalongtimehowtheirpersonalitiesandbehaviorsa
Peoplehavewonderedforalongtimehowtheirpersonalitiesandbehaviorsa
In1915EinsteinmadeatriptoGottingentogivesomelecturesattheinvit
In1915EinsteinmadeatriptoGottingentogivesomelecturesattheinvit
In1915EinsteinmadeatriptoGottingentogivesomelecturesattheinvit
In1915EinsteinmadeatriptoGottingentogivesomelecturesattheinvit
In1915EinsteinmadeatriptoGottingentogivesomelecturesattheinvit
In1915EinsteinmadeatriptoGottingentogivesomelecturesattheinvit
Ihaveworkedwithsomanypeopleovertheyearsthathavemademewonderho
随机试题
WhatisthepercentageoftotaldeclineinvehiclesalesinAprilthisyear?[or
Hewasreadingexcitedlythebookpublishedbyhiscompanyin______withafamo
Whenitcomestousingtechnologytopromoteeducation,theprevailingwisdo
()是指通过一定的方法和流程将投入企业的资源转换为产品或服务的系统,包括投入、
某单位有负责网络、文秘以及后勤的三名办公人员:文珊、孔瑞和姚薇,为了培养年轻干部
缺牙间隙小,龈距离过低者可选用()A.塑料牙 B.瓷牙 C.烤瓷牙
关于乳剂在稳定性方面发生的变化,下述错误的是A.分层B.成盐C.絮凝D.转相E.
公民甲从兴华商场买了一瓶红星肉厂生产的熟食罐头,吃后中毒住院,共花去住院费等共计
(2019年真题)社会流动性按照用于支付的方便程度不同的分类不包括()。A.M
操作熟练的内在机制是在大脑皮层中建立了_________。
最新回复
(
0
)