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
考研
Unless we spend money to spot and prevent asteroids(小行星)now, one might crash into Earth and destroy life as we know it, say some
Unless we spend money to spot and prevent asteroids(小行星)now, one might crash into Earth and destroy life as we know it, say some
admin
2018-08-10
74
问题
Unless we spend money to spot and prevent asteroids(小行星)now, one might crash into Earth and destroy life as we know it, say some scientists.
Asteroids are bigger versions of the meteoroids(流星)that race across the night sky. Most orbit the sun far from Earth and don’t threaten us. But there are also thousands whose orbits put them on a collision course with Earth.
Buy $ 40 million worth of new telescopes right now. Then spend $ 10 million a year for the next 25 years to locate most of the space rocks. By the time we spot a fatal one, the scientists say, we’ll have a way to change its course.
Some scientists favor pushing asteroids off course with nuclear weapons. But the cost wouldn’t be cheap.
Is it worth it? Two things experts consider when judging any risk are: 1)How likely the event is: 2)How bad the consequences if the event occurs. Experts think an asteroid big enough to destroy lots of life might strike Earth once every 400,000 years. Sounds pretty rare—but if one did fall, it would be the end of the world. "If we don’t take care of these big asteroids, they’ll take care of us," says one scientist. "It’s that simple. "
The cure, though, might be worse than the disease. Do we really want fleets of nuclear weapons sitting around on Earth? "The world has less to fear from doomsday(毁灭性的)rocks than from a great nuclear fleet set against them," said a New York Times article.
Which of the following best describes the author’s tone in this passage?
选项
A、Optimistic.
B、Critical.
C、Objective.
D、Arbitrary.
答案
C
解析
optimistic乐观的;critical批评的;objective客观的;arbitrary武断的。从整篇文章来看,作者的语气一直是客观的。故选C。
转载请注明原文地址:https://www.kaotiyun.com/show/caLi777K
0
在职申硕(同等学力)英语
相关试题推荐
Mostparentsprizethediversitywithintheirchildren’spublicschools.Theyknowthatlearningtocooperateandexcelinadiv
Publicspeakingfillsmostpeoplewithdread.Humiliationisthegreatestfear;serf-exposureandfailingtoappealtotheaudie
(Electronic)mailtodescribeanupcomingworkshop(shoulduse)only(if)potentialparticipantsusethisformofcommunication
Therichhavetraditionallypassedtheirwealthontotheirchildren.Butanincreasingnumberofbillionairesarechoosingnot
Althoughinteriordesignhasexistedsincethebeginningofarchitecture,itsdevelopmentintoaspecializedfieldisreallyqui
Untillastspring,NiaParkerandtheotherkidsinherneighborhoodcommutedtoschoolonBus59.Butasfuelpricesrose,the
Oneofthemoststrikinglyapparentinstancesofextrasensoryperceptionistheprecognitiveexperience,whenapersonhasacom
howpupilsaretreatedinschoolswithyoungpeoplefarfromlookatA.wemust(68)______theinsecuritythatparentshaveforth
DoctorsinBritainarewarningofallobesitytimebomb,whenchildrenwhoarealreadyoverweightgrowup.So,whatshouldwedo
ForanincreasingnumberofstudentsatAmericanuniversities,oldissuddenlyin.Therea-sonisobvious:thegrayingofAmeric
随机试题
对于线胀系数较大的薄壁工件,在一次装夹中连续进行半精车和精车时,所产生的切削热不会影响它的尺寸精度。()
下列关于塔式起重机安全控制的说法,错误的是()。
《出境货物报检单》的“启运地”应填写货物的生产加工地。 ( )
下列关于固定资产投资决策方法的说法中,错误的有()。
2014年10月,甲企业进口一辆小汽车自用,支付买价17万元,货物运抵我国关境内输入地点起卸前的运费和保险费共计3万元,货物运抵我国关境内输入地点起卸后的运费和保险费共计2万元,另支付买方佣金1万元。已知关税税率为20%,消费税税率为25%,城建税税率为7
2004年7月,()联合颁布了《物业服务收费明码标价规定》。
长城是华夏文明的历史见证,以下关于长城说法正确的是()。
ForthepeoplewhohavenevertraveledacrosstheAtlanticvoyageisafantasy.Butforthepeoplewhocrossitfrequentlyonec
Thefloodingjustendingwas______severe,causinggreathardshiptothepeopleintheareaneartheriver.
扬州是中国的历史名城之一。扬州,时称广陵,其建城可追溯至公元前(B.C.)486年。在唐宋两朝(theTangandSongDynasties)期间,扬州逐渐兴盛起来,成为了经济、文化中心以及对外贸易交换地。京杭大运河(theBeijing-Hang
最新回复
(
0
)