首页
登录
职称英语
Unless we spend money to spot and prevent asteroids now, one might crash int
Unless we spend money to spot and prevent asteroids now, one might crash int
游客
2023-11-09
41
管理
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. [br] (12)
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://tihaiku.com/zcyy/3172341.html
相关试题推荐
We______payingyouavisitbutthebadweatherpreventedusfromdoingso.A、had
They______fromtalkinguntiltheyknewthatitwassafe.A、preventedB、keptC、res
Youcanborrowit______youarenotcarelesswithit.A、unlessB、aslongasC、as
Thecourtwouldnotaccepthisappealunless______evidenceisprovidedA、definite
Thecurrentgeneralslacknessofthemarkethaspreventedusfrom______neword
Hewaspunished______heshouldmakethesamemistakeagain.A、unlessB、provided
ManydeathsduringchildbirthcouldbepreventedbythefollowingmethodsEXCEP
【B1】[br]【B3】A、IfB、AsC、ThoughD、UnlessA此处应该使用表示假设的从属连词,只能选If。
Nothingwastopreventhimnowfrombecomingtherichest,and______thehappiest
Thecourtwouldnotaccepthisappealunless______evidenceisprovided.A、definit
随机试题
HowmanyjobsarelikelytobelostatVieVitale?[br]VieVitaleownsallofi
Wherecouldtheladyfindtheman?[br][originaltext]Listentotheconversatio
A.NaCO B.ZnO下列各题应选用的基准物质是 C.对氨基苯磺酸 D.
符合下列情况,应为一级负荷的有()。A.中断供电将在政治、经济上造成较大损失
儿童上乳前牙外伤常见年龄几岁A.3~4岁 B.4~5岁 C.8~9岁 D.
某股份有限公司共有甲、乙、丙、丁、戊、己、庚七位董事。某次董事会会议,董事甲、乙
皮瓣移植的手术指征包括:()A.全层皮肤和皮下组织缺损,且难以直接缝合,
患者,女,56岁。脑外伤术后,头痛剧烈,呼吸急促,汗出。不宜采用的镇痛方法是(
A.止血,调整周期,促进排卵 B.止血,调整周期,减少血量,防内膜病变 C.
A.石膏B.赭石C.自然铜D.朱砂E.雄黄主含硫化砷(AsS)的药材是
最新回复
(
0
)