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
52
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] (2)
选项
A、surround
B、orbit
C、cycle
D、enclose
答案
B
解析
词汇辨析题。根据常识,行星围绕太阳转动,orbit“绕轨道运行”符合语义.故B为答案。surround“环绕,围绕”,常用于被动语态be surrounded by“……被……所围绕”;cycle作动词时,表示“骑自行车”;enclose“(用篱笆或围墙)围起来”。
转载请注明原文地址:http://tihaiku.com/zcyy/3172331.html
相关试题推荐
Thecriminaljusticesystemisinneedof______reformtopreventmorepeoplefro
Thecourtwouldnotaccepthisappealunless______evidenceisprovided.A、definit
Thestudentsinthedormitorieswereforbidden,unlesstheyhadspecialpassed,
Whatpreventsthemanfromtakingthepoetsofthe1960sclass?[originaltext]W:
Unlesswespendmoneytospotandpreventasteroidsnow,onemightcrashint
Unlesswespendmoneytospotandpreventasteroidsnow,onemightcrashint
Unlesswespendmoneytospotandpreventasteroidsnow,onemightcrashint
Unlesswespendmoneytospotandpreventasteroidsnow,onemightcrashint
Unlesswespendmoneytospotandpreventasteroidsnow,onemightcrashint
Unlesswespendmoneytospotandpreventasteroidsnow,onemightcrashint
随机试题
•Readthearticlebelowaboutdecisionrightsinacompany.•Choosethecorrect
Thefailureoftheexperimenttoproducetheexpectedresultshouldalonebe___
"Youngpeopleoughtnottobeidle.Itisverybadforthem,"saidMargaret
Allthefollowingparticiples(分词)functionasanadverbEXCEPTA、Sheisanamazing
不属于免疫放射技术的优点有A.特异性强 B.试剂可长时间存放 C.操作简便易
李某,70岁。大便后常滴鲜血,进行直肠肛管检查体位首选A:平卧位 B:截石位
由于土地具有()的特性,所以基本上是一宗土地一个价格,而且不同的土地之间价
哮喘穴位贴敷法一般选取的穴位是A.列缺、合谷、肺俞、天突、中府 B.列缺、合谷
(2011年)某通信公司为了获得进一步的竞争优势,在全国范围内正式推出为年轻时尚
某施工单位承接了二级公路一桥隧相连项目,其中桥梁桥跨布置为(65+120+65)
最新回复
(
0
)