首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、Because every species becomes extinct. B、Because humans beings are powerful enough to kill other species. C、Because of over-po
A、Because every species becomes extinct. B、Because humans beings are powerful enough to kill other species. C、Because of over-po
admin
2012-11-30
78
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://kaotiyun.com/show/c5b7777K
0
大学英语六级
相关试题推荐
Topreventthespreadoftheepidemic,thepublichealthorganizationcarriesoutfrequent______ontherestaurants.
Inthisfactorythemachines.arenotregulated______butarejointlycontrolledbyacentralcomputersystem.
Youshouldprobably______thepointwhetheritisworthyofyoureffortsbeforeyoumakethefinaldecision.
MeasuresoftheAmericanGovernmenttocombatterrorismwillbehighonthe______.
Thedifferencebetweenmaleandfemaleroleswithinthehousehasbecome______.
Johnhasjustpassedhisdrivingtest,sonowhe’sonthe______foracheapcar.
Itwasreallyanunfortunatethingthatheunderwentfour______operationsinlessthantwoyears.
A、Tomhaschangedhiscellphonenumber.B、Thewoman’scellphoneisalwaysunreachable.C、Tomwillteachhistoryclassatthat
It’sasimplecalculus,kidsandmoney:Frombirthuntilcollegegraduation,childrenconsumedollarslikethey’rechickennugge
It’sasimplecalculus,kidsandmoney:Frombirthuntilcollegegraduation,childrenconsumedollarslikethey’rechickennugge
随机试题
Mr.SmithkeptonAstudyingChineseandBuseitCuntilheDhadmasteredit.
A.艾迪生病B.侏儒症C.库欣综合征D.肢端肥大症E.性幼稚症皮质醇分泌升高可致
公路工程建筑安装工程费中计划利润的计算基数是()。
强调了经济区范围与中心城市吸引范围的一致性,也是用实证的方法进行城市经济区组织的主要依据的城市经济区组织原则是()
固定资产的各组成部分具有不同使用寿命、适用不同折旧率的,应当将各组成部分账面价值之和确认为一项固定资产,重新确定使用寿命和折旧率,然后再计提折旧。()
在进行经营环境与竞争优势环境分析时,属于较为重要的经营环境因素的是()。
甲公刮对乙公司的长期股权投资及其合并报表有关资料如下:(1)2011年3月31日甲公司以投资性房地产和生产没备作为对价支付给乙公司的原股东取得乙公司的60%股权,采用成本法核算。甲公司与乙公司的原股东没有关联方关系。作为合并对价的投资性房地产公允价值为2
Wewillhavea______holidayaftertheexam.
我国民法调整的主要内容包括
在系统设计中有许多原则要遵循,其中一种原则是()。
最新回复
(
0
)