首页
登录
职称英语
Astronomers have discovered what may be five planetsorbiting Tau Ceti, the
Astronomers have discovered what may be five planetsorbiting Tau Ceti, the
游客
2024-11-29
28
管理
问题
Astronomers have discovered what may be five planets
orbiting Tau Ceti, the closest single star beyond our solar system
whose temperature and luminosity nearly matches the sun’s. If the 【M1】______
planets are there, one of them is about the right distance from the
star to support mild temperatures, oceans of liquid water, and even life.
Tau Ceti is only 12 light-years from Earth, just three times as
far as our sun’s nearest stellar neighbor, Alpha Centauri. Tau Ceti
assembles the sun so much that astronomer Frank Drake, who has 【M2】______
long sought radio signals from possible extraterrestrial civilizations,
made it his first target back in 1960. Unlike most stars, that are 【M3】______
faint, cool, and small, Tau Ceti is a bright G-type yellow
main-sequence star like the sun, a trait that only one in 25 stars
boasts of. Moreover, unlike Alpha Centauri, which also harbors a 【M4】______
G-type star and even a planet, Tau Ceti is single, therefore there’s 【M5】______
no second star in the system whose gravity could yank planets
away. Astronomer Mikko Tuomi of the University of Hertfordshire
in the United Kingdom and his colleagues analyzed more than
6,000 observations of Tau Ceti from telescopes in Chile, Australia,
and Hawaii. As the researchers will report in Astronomy &
Astrophysics, slight changes in Tau Ceti’s motion through space
suggest that the star may be responding to gravitational tugs from
five planets that are only about two to seven times as massive as
Earth. If that’s right, all five planets lie close to their star than Mars 【M6】______
does ours; however, Tau Ceti emits only 45% as much light as the 【M7】______
sun, so each planet receives less warmth than a planet would at the
same distance from our sun. Tau Ceti’s three innermost
planets — designated b, c, and d — are probably too hot to support
life, being such close to the star that they require only 14, 35, and 【M8】______
94 days to complete an orbit. The farthest of the three, d, is about
as close to Tau Ceti as Mercury is to the sun. It’s fourth 【M9】______
planet — planet e — that the scientists suggest might be another
life-bearing world, even though it’s about four times as massive as
Earth. If you live there, you’d see a yellow sun in the sky, but your 【M10】______
year would last just 168 days. [br] 【M8】
选项
答案
such—so
解析
固定搭配错误。短语such…that与so…that的区别在于such后接名词,而so后接形容词或副词,而这里close是形容词,因此改为so。
转载请注明原文地址:https://tihaiku.com/zcyy/3865617.html
相关试题推荐
AstronomershavediscoveredwhatmaybefiveplanetsorbitingTauCeti,the
AstronomershavediscoveredwhatmaybefiveplanetsorbitingTauCeti,the
AstronomershavediscoveredwhatmaybefiveplanetsorbitingTauCeti,the
AstronomershavediscoveredwhatmaybefiveplanetsorbitingTauCeti,the
AstronomershavediscoveredwhatmaybefiveplanetsorbitingTauCeti,the
AstronomershavediscoveredwhatmaybefiveplanetsorbitingTauCeti,the
AstronomershavediscoveredwhatmaybefiveplanetsorbitingTauCeti,the
JohnCabot,thepersonwhofirstdiscoveredCanadain1497wasa(n)______explore
_____discoveredNewZealandin1642.A、MaorisB、JacquesCartierC、JamesCookD、A
Inthepost-SilentSpring1960s,whenthepesticideDDTwasdiscoveredtobe
随机试题
Therewasaknockatthedoor.Itwasthesecondtimesomeone________methateve
BritishCuisine:TheBestofOldandNewBritishcuisine(烹饪)hascomeof
NarratorListentopartofalectureinahistoryclass.Nowgetr
TheconqueringEuropeansdisplacedtheAborigines,killingmany,drivingoth
在关于掌握知识和发展智力的相互关系上,一般认为智力发展是掌握知识的条件,而掌握知
2013年6月16日13时20分左右,C钢铁集团有限责任公司大型轧钢厂发生机械伤
CO中毒患者皮肤黏膜呈A.苍白色 B.鲜红色 C.暗红色 D.樱桃红色
积滞的病变脏腑主要在A.胃、小肠 B.胃、大肠 C.脾、小肠 D.脾、大肠
苏子降气汤的药物组成中有A.干姜 B.生姜 C.两者都选 D.两者都不选
下列情形中,用人单位不得与劳动者解除劳动合同的有()。A.员工赵某从事农药的灌
最新回复
(
0
)