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
2015-03-26
19
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【C1】______ the night sky. Most【C2】______ the sun far from Earth and don’t threaten us. But there are also thousands【C3】______ orbits put them on a collision course with the【C4】______.
Buy $50 million worth of new telescopes right now. Then spend $10 million a year for the next 25 years to【C5】______ most of the space rocks.【C6】______ we spot a fatal one, we’ll have a way to change its【C7】______, the scientists say.
Some scientists【C8】______ pushing asteroids off course with nuclear weapons. But the cost wouldn’t be cheap. Is it【C9】______ it? Two things experts consider when judging any【C10】______ are how likely the event is and how bad the【C11】______ if the event occurs. Experts think an asteroid【C12】______ enough to destroy lots of life might strike Earth once every 500,000 years. Sounds pretty【C13】______ — but if one did fall, it would be the【C14】______ of the world. "【C15】______ we don’t take care of these big asteroids, they’ll take care of us. It’s that【C16】______," says one scientist.
The【C17】______, though, might be worse than the disease. Do we really want【C18】______ nuclear weapons sitting around on Earth? "The world has【C19】______ to fear from doomsday rocks than from a great nuclear fleet【C20】______ them," said a New York Times article.
【C12】
选项
A、fast
B、big
C、high
D、far
答案
B
解析
语义线索题。根据常识,小行星撞击地球给人类带来毁灭性打击是与其体积大小有关的,故B正确。
转载请注明原文地址:https://kaotiyun.com/show/IAHK777K
0
专业英语四级
相关试题推荐
Inthepast,Americanfamiliestendedtobe______.
Acutehearinghelpsmostanimalssensetheapproachofthunderstormslongbeforepeople
Althoughshe’sa(n)______talenteddancer,shestillpracticesseveralhourseveryday.
Arecentsurveyshowsthatmostadolescentseat______astheyactuallyneedeveryday.
Asourbosswasawayonabusinesstrip,Iwasaskedto______theweeklystaffmeeting.
Debatesamongcandidatesarerareinmostcountries.ButtheyhavebecomeastapleofAmericanpolitics.Americanslikedebates
Intheopinionofthespeaker,____arebeingdestroyedterriblyatpresent.
Whichofthefollowingrequirestheleastworkingtime?
Sherememberedseveraloccasionsinthepast______shehadexperiencedasimilarfeeling.
Youshouldn’t______yourfather’sadvice.Anywayheismuchmoreexperiencedthanyouinthismatter.
随机试题
极限
对患有炭疽的家畜的粪便进行处理,下列方法错误的是
铸造全冠预备时,颈部肩台及轴壁正常聚合角要求
正常成年男子的基础代谢率约为
决定教育目的的因素是()。
计算下列反常积分(广义积分)的值:(Ⅰ)(Ⅱ)dx;(Ⅲ)
2012级企业管理专业的林楚楠同学选修了“供应链管理”课程,并撰写了题目为“供应链中的库存管理研究”的课程论文。论文的排版和参考文献还需要进一步修改,根据以下要求,帮助林楚楠对论文进行完善。删除文档中的所有空行。
IreturnedtoAbuja,thecapitalofNigeria,aftercollegegraduation.Ihadbeentherebeforemymotherbecameaminister.
Teachingtodaydemandsmorethanjustcaringaboutchildrenandknowingone’ssubjectwell.Teachersneedtofindoutwhat【B1】__
A、Savetimebyusingacomputer.B、Buyherowncomputer.C、BorrowMartha’scomputer.D、Stayhomeandcompleteherpaper.B推理判断题.
最新回复
(
0
)