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
2023-08-17
47
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、Humans got help from other species.
B、Humans survive by exploration.
C、Humans survive by ingenuity.
D、Humans survive by luck.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2932764.html
相关试题推荐
[originaltext]InBritainthebiggestnumberofworkingforeignerscomesfro
[originaltext]InBritainthebiggestnumberofworkingforeignerscomesfro
[originaltext]Peter:(19)ThelawontaxisisveryinterestingandIknowinLon
[originaltext]Peter:(19)ThelawontaxisisveryinterestingandIknowinLon
[originaltext]Peter:(19)ThelawontaxisisveryinterestingandIknowinLon
[originaltext]OneofNewYork’smostbeautifulandvaluablebuildingsisin
[originaltext]OneofNewYork’smostbeautifulandvaluablebuildingsisin
[originaltext]Ababyspendsthefirstyearoflifelearningtolisten.(9)A
[originaltext]Ababyspendsthefirstyearoflifelearningtolisten.(9)A
[originaltext]W:Hi,Scott,haveyouheardaboutDianarecently?M:No,Ihave
随机试题
Weenjoyfinefoodfromthefirsttastetothelast.Similarly,goodwriting
Yousendyourchildrenofftoschoolandputthemintheteacher’shands.Didy
Johnregretted______tothemeetinglastweek.A、notgoingB、nottogoC、nothav
在HTML语言中,可用来产生滚动文字的标记是______。A.<Marquee>
软件设计包括软件的结构设计、数据设计、接口设计和过程设计,其中结构设计是指(
钢琴作品被舒曼称为“隐藏在花丛中的大炮”,这位音乐家是( )。A.李斯特 B
当发生对基金份额持有****益或者基金价格产生重大影响的事件时,基金管理人应在(
目前我国主管全国药品监督管理工作的部门是A:国家医药管理局 B:国家药品监督管
美国的战略是打着促进民主和稳定的旗号来使北约扩大到欧亚地区。 北约有没有扩大到
具有增加冠状动脉血流量及降低心肌耗氧量等作用的黄酮类化合物是
最新回复
(
0
)