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 so
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 so
admin
2012-01-30
105
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; and 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 400000 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
C客观的
转载请注明原文地址:https://www.kaotiyun.com/show/7KYi777K
本试题收录于:
GCT工程硕士(英语)题库专业硕士分类
0
GCT工程硕士(英语)
专业硕士
相关试题推荐
Man:______Woman:No.Butit’sanon-smokingsection,I’mafraid.
Anystudentwho______hishomeworkisunlikelytopasstheexamination.
Thesentence"Ifonlytherestofhisexpenseswereaseasytoquantify".(Lines2~3,Paragraph1)impliesthat______.According
Whatdoesthepassagesayaboutasteroidsandmeteoroids?Wecanconcludefromthepassagethat______.
Privateenterpriseisthething.Wewenttoapartyontheriverearlierthissummer.Thehost【B1】isoldenoughtoknowbetter,
Privateenterpriseisthething.Wewenttoapartyontheriverearlierthissummer.Thehost【31】isoldenoughtoknowbetter,
Bytheendofnextyear,they______threemodemhotelsthere.
Beijing’stophotelsarefieldingscoresofcallsfromforeignersandChinesepeopleeagertobookroomsduringthe2008Olympic
Bytheendofnextyear,they______threemodemhotelsthere.
Peoplelikebeingtrusted.Theyareannoyed,angry,orfeelhurtiftheyareregardedwithsuspicion.Theythinkthattheyare【C
随机试题
溃疡形成可发生于
Almosteveryfamilybuysatleastonecopyofanewspapereveryday.Somepeoplesubscribetoasmanyastwoorthreedifferent
出现爪形手常见的原因是骨折造成()
男性,40岁,家住山区,发现甲状腺结节20年。因结节逐渐增大影响呼吸而入院,术中见甲状腺右叶内一大结节,左叶内亦发现2个小结节。术中可诊断为
A.血清溶菌酶明显增高B.易见Ph’染色体C.非特异性酯酶阳性,能被。NaF抑制D.常见Auer小体E.中性粒细胞碱性磷酸酶活力明显增高急性粒细胞性白血病
()是指为保证网络及其节点安全而采用的技术和方法。
下列选项巾,不属于寿险的是()。
一般情况下,企业的规模越大,则员工的流动率越低,原因不包括()。
关于仲裁,下列说法不正确的有( )。
Thehunter-gatherertribesthattodaylivelikeourprehistorichuman【M1】______ancestorsconsumeprimarilyavegetabledietsu
最新回复
(
0
)