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
2024-04-24
28
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、She is doing a paper.
B、She missed the lecture.
C、She is interested in the topic.
D、She is writing a paper for a scholarship.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3569318.html
相关试题推荐
[originaltext]W:ProfessorSmith,Iwonderifyoucanfillmeinonyourlectur
[originaltext]W:We’veallheardthesayingLaughteristhebestmedicine.How
[originaltext]W:We’veallheardthesayingLaughteristhebestmedicine.How
[originaltext]W:We’veallheardthesayingLaughteristhebestmedicine.How
[originaltext]W:Abunchofusaregettingtogetherforavolleyballmatchont
[originaltext]W:Abunchofusaregettingtogetherforavolleyballmatchont
[originaltext]W:Abunchofusaregettingtogetherforavolleyballmatchont
[originaltext]W:Abunchofusaregettingtogetherforavolleyballmatchont
[originaltext]Tomostofus,sharksarethemostdangerousfishinthesea
[originaltext]Theworld’ssmartestadolescentsinmathematicsandsciencea
随机试题
"BuildingwithArches"RoundArchandVaultAlthoughtheroundarchwasus
Inthesecondhalfofeachyear,manypowerfulstormsareborninthetropic
Detailsofclimbingclub:[br]Benefits:discountson________[originaltext]R:O
Howoldis"old"?Theanswerhaschangedovertheyears.Twohundredyearsa
Highereducationhasaresponsibilitytoprovideaworkforcewiththedesign
40周妊娠,临产8小时,阴道检查:先露头,棘上2cm,宫口开大3cm,无产瘤及骨
“意识是与生俱来的”这一观点是唯物主义观点。( )
关于自伤,下列哪一选项是错误的?()A.军人在战时自伤身体、逃避军事义务的,成
运用生态学原理和系统科学方法,把现代科学成果与传统农业技术的精华相结合而建立起来
导致静脉O分压增高的情况有A.氰化物中毒 B.体育锻炼 C.心搏出量降低
最新回复
(
0
)