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
2023-08-14
42
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、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/2926627.html
相关试题推荐
[originaltext]M:IseeyouandyourMendshavebeendecoratingthedormitory.W
[originaltext]W:Whenwasthelasttimeyouwentforawalkinyourlocalpark?
[originaltext]W:Whenwasthelasttimeyouwentforawalkinyourlocalpark?
[originaltext]Imagineabigexplosionasyouclimbthrough3.000ft.Imagin
[originaltext]Imagineabigexplosionasyouclimbthrough3.000ft.Imagin
[originaltext]Imagineabigexplosionasyouclimbthrough3.000ft.Imagin
[originaltext]Currentstudiesshowthatwhatgoesonlabelsisanimportant
[originaltext]Currentstudiesshowthatwhatgoesonlabelsisanimportant
[originaltext]I’msureyourealizethatyourresearchpapersaredueinsix
[originaltext]I’msureyourealizethatyourresearchpapersaredueinsix
随机试题
ThetablebelowgivesinformationaboutchangesinmodesoftravelinEnglan
WhogaveNewYorkitsnickname?[br][originaltext]M:Areyoureadyforthetri
[originaltext]W:Hello.Flagstone.M:Ohhello.IsthatFlagstoneProperties?W
2006~2008年,该省平均每年进出口总额约为;A.650亿元 B.
水肿的发病病机中,其标在肺,其制在脾,其本在A.三焦 B.膀胱 C.肾 D
A.细菌感染B.痛风C.平滑肌痉挛D.疟疾E.中重度疼痛东莨菪碱主要用于治疗
1948年10月2日,刘少奇同志在同华北记者团谈话时,讲了一个希腊神话故事:巨人
以凉血止血、利水通淋为主要功能的方剂是( )。A.八正散 B.猪苓汤 C.
甲和乙分别属于两股流氓团伙,一天两团伙在街头争地盘时发生打斗,打斗中甲持刀朝乙脑
某建设工程职业健康安全事故,造成40人死亡,30人重伤,直接经济损失为500万元
最新回复
(
0
)