首页
登录
职称英语
[originaltext]W: Professor Marnes, I wonder if you can fill me in on your lectu
[originaltext]W: Professor Marnes, I wonder if you can fill me in on your lectu
游客
2024-05-15
16
管理
问题
W: Professor Marnes, 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 humans.
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: go 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 hot 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.
选项
A、Because every species becomes extinct.
B、Because humans beings are powerful enough to kill other species.
C、Because of over-population.
D、Because human being is still a young species though it is exploiting the environment.
答案
D
解析
根据对话中男士(即教授)所说的 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可知,教授认为人类目前对环境的不断开发可能会导致人类的灭绝,但由于人类还是相对年轻的物种,所以可能还不会 那么快就面临灭绝的危险,因此答案为D。
转载请注明原文地址:https://tihaiku.com/zcyy/3599134.html
相关试题推荐
__________________(洗完车之后),professorMayerwentstraighttothelaboratorytop
[originaltext]Ofthethousandsofdifferentkindsofanimalsthatexistin
[originaltext]Ofthethousandsofdifferentkindsofanimalsthatexistin
[originaltext]Ofthethousandsofdifferentkindsofanimalsthatexistin
[originaltext]W:Well,weheardsomepeoplejustnowwhoseemtofeelthatothe
[originaltext]W:Well,weheardsomepeoplejustnowwhoseemtofeelthatothe
[originaltext]W:Well,weheardsomepeoplejustnowwhoseemtofeelthatothe
[originaltext]M:Willthatbecashorcharge?W:IwanttopaybycheckifIma
[originaltext]Americansaresufferingfromaserioussleepdeficitwhileal
[originaltext]Americansaresufferingfromaserioussleepdeficitwhileal
随机试题
Manystudentsfindtheexperienceofattendinguniversitylecturestobear
Itwouldbeverydifficultforalibrarytobewithoutdictionariesandencyclop
硫酸镁口服具有__________、__________作用,注射具有_____
治疗胁痛肝胆湿热证,应首选A.龙胆泻肝汤B.柴胡疏肝散C.复元活血汤D.一贯煎E
具有特殊的刺激气味,会引起流泪的是A.氯化苦熏蒸法B.环氧乙烷熏蒸法C.硫黄熏蒸
关于胃食管反流病的治疗原则,正确的是 A.促胃肠动力药只适用于轻症患者B.
编制工程项目物资需求计划的关键是()。A.确定需求品种 B.确定需求时间
B
钻孔灌注桩施工的主要工序中,首先是()。A.制备泥浆 B.埋设护筒 C
与原发性肝癌相关的肿瘤性标志物是( )。A.CEA B.CA125 C.P
最新回复
(
0
)