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
Unless we spend money to spot and prevent asteroids now, one might crash into Earth and destroy life as we know it, say some sci
Unless we spend money to spot and prevent asteroids now, one might crash into Earth and destroy life as we know it, say some sci
admin
2013-12-13
35
问题
Unless we spend money to spot and prevent asteroids now, one might crash into Earth and destroy life as we know it, say some scientists.
Asteroids are bigger versions of the meteorites that race(1)______ the night sky. Most(2)______ the sun far from Earth and don’t threaten us. But there are also thousands(3)______ orbits put them on a collision course with the(4)______.
Buy $50 million worth of new telescopes right now. Then spend $10 million a year for the next 25 years to (5)______ most of the space rocks. (6)______ we spot a fatal one, we’ll have a way to change its(7)______, the scientists say.
Some scientists(8)______ pushing asteroids off course with nuclear weapons. But the cost wouldn’t be cheap. Is it(9)______ it? Two things experts consider when judging any (10)______ are how likely the event is and how bad the(11)______ if the event occurs. Experts think an asteroid (12)______ enough to destroy lots of life might strike Earth once every 500,000 years. Sounds pretty(13)______ — but if one did fall, it would be the (14)______ of the world. "(15)______ we don’t take care of these big asteroids, they’ll take care of us. It’s that(16)______," says one scientist.
The(17)______, though, might be worse than the disease. Do we really want(18)______ nuclear weapons sitting around on Earth? "The world has(19)______ to fear from doomsday rocks than from a great nuclear fleet (20)______ them," said a New York Times article.
(13)
选项
A、unique
B、odd
C、small
D、rare
答案
D
解析
语义线索题。前面提到小行星撞击地球的概率是每50万年一次,因此概率是“罕见的,很少发生的”,故D正确。unique表示“唯一的,独特的”;odd表示“奇数的,单数的”;small表示“微小的,微不足道的”。
转载请注明原文地址:https://kaotiyun.com/show/rXFK777K
0
专业英语四级
相关试题推荐
WhichofthefollowingwordscanNOTbeusedtocomplete"______propertypriceshavepreventedmanywageearnersfrombuying."?
Accordingtothepassage,asurveyaboutbutterfliesiscarriedonby________.
AccordingtothisPassage,theumbrellawasprobablyfirstinvented________.
Thepatient’shealthfailedtosuchanextentthathewasputinto______care.
Astemptingasitcanbetoletitallhanglooseandstopworryingwhileonvacation,youdowanttobeawareofyourecologica
Astemptingasitcanbetoletitallhanglooseandstopworryingwhileonvacation,youdowanttobeawareofyourecologica
TheartteacherwhoaccusedPrinceHarryofcheatinghaswonhercaseagainstEtonCollegeforunfairdismissal.SarahForsy
TheartteacherwhoaccusedPrinceHarryofcheatinghaswonhercaseagainstEtonCollegeforunfairdismissal.SarahForsy
Eachyear,moreUSpropertieswithinfloodplainsaredestroyedbyfloodingthanfire.Changingweatherpatterns,increasedurban
Theytook______measurestopreventpoisonousgasesfromescaping.
随机试题
热塑性试验的结果是评定材料抗冷裂纹敏感性的指标。()
某企业规定,员工上班迟到一次,扣发当月50%的奖金,自此规定出台以后,员工迟到现象基本消除,这是哪一种强化方式( )
A.胎盘剥离后滞留B.胎盘嵌顿C.胎盘粘连D.软产道裂伤E.凝血功能障碍使用宫缩药不当可致
肾单位不包括
患者,男,23岁。腹泻,初为黄水样,不久转为米泔水样便,出现脱水表现,患者烦躁不安,眼窝下陷,两颊深凹,精神呆滞。该患者应患的疾病是
为招标投标市场提供各类交易项目需求登记发布,以及交易主体身份资格、业绩和信用的注册验证、查询和发布共享服务的平台是()。
根据《水利水电工程等级划分及洪水标准》的规定,小(1)型水库的总库容是()106m3。
西湖三大名泉不包括()。
有一块不规则的四边形工地需要施工,四条边的长度分别为120米、160米、180米、220米,现要在四个角上各安置一个安全警示桶,每条边上每隔10米也要放置一个安全警示桶,则共需放置多少个安全警示桶?
有些男人还在怀念昔日以男子为中心的年代。那时,他们下了班回家,热腾腾的晚餐已摆好在桌上,妻子儿女围上来问寒问暖;家中大事小事多由自己作主,因为男人作为一家之主承担了全家经济生活的来源。妇女走出家门就业后,男人的供养职责相对减小,在家庭的地位也变得不像从前那
最新回复
(
0
)