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
2024-06-02
13
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: 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.
选项
A、Why species don’t avoid extinction by adapting.
B、Why species become extinct at the rate they do.
C、Why humans aren’t extinct.
D、How many species aren’t extinct.
答案
A
解析
四个选项都是由疑问词引导,均使用的是正常语序,故本题应该是针对what提问,内容很可能与物种灭绝有关。根据对话中女士提到的Why do they die off?…Natural selection,…可知,女士对物种不能够通过适应环境来避免灭绝这一问题感到很困惑,故答案为A。
转载请注明原文地址:https://tihaiku.com/zcyy/3616474.html
相关试题推荐
[originaltext]W:Hello.HolidayHotel.MayIhelpyou?M:Yes,I’dliketorese
[originaltext]M:Thesummerholidayiscoming,butIreallydon’tknowwhatto
[originaltext]M:Thesummerholidayiscoming,butIreallydon’tknowwhatto
[originaltext]M:Youdidn’tseemtobeabletositstillforclass.Areyouexp
[originaltext]M:Youdidn’tseemtobeabletositstillforclass.Areyouexp
[originaltext]M:Youdidn’tseemtobeabletositstillforclass.Areyouexp
[originaltext]M:Youdidn’tseemtobeabletositstillforclass.Areyouexp
[originaltext]About25millionchildrenindevelopingcountrieshavenoho
[originaltext]About25millionchildrenindevelopingcountrieshavenoho
[originaltext]Centuriesago,duringtheMiddleAges,mostofthelandinE
随机试题
[originaltext]W:IthoughtIwasspeakingEnglishfairlywell,butpeoplekeep
Whatdoesyourdoctorusuallyadviseyoutodowhenyou’requitesick?To______
[originaltext]W:Hi,Mike.YourroommatetoldmethatIcouldfindyouinthek
患者,女,18岁。因"反复皮肤瘀点、瘀斑2周,高热2天"入院。查体:T39.5℃
小明经常违纪但他的家长一直袒护他作为老师你该怎么办?
A.恶性肿瘤晚期B.严寒的刺激C.再生障碍性贫血D.伤寒或副伤寒E.缺铁性贫血暂
(2018年真题)问题和答案是问卷设计的核心。下列问题和答案符合问卷设计原则的有
安全生产检查是企业安全生产工作的一项重点工作,为了使检查工作更加规范,将个人的行
(2017年真题)关于工程质量保证金,下列说法中正确的是()。A.质量保证金总预
关于招标人违法的法律责任,下列说法中正确的是()A.违法确定或者更换的评标委员会
最新回复
(
0
)