Question

19．What science story once told about other worlds far away is now a fact．Astronomers prove another solar （of the sun） system like ours with some planets in the constellation Andromeda （仙女座）．
Geoffrey Marcy is a professor of astronomy and physics at San Francisco State University．He says，"What we have found now is indeed a fully-grown system of planets around the star Upsilon Andromeda．It appears to have three planets，one close in，one at a middle distance，and one farther out．The star is slightly larger than our sun．The planets are huge，like our Jupiter（木星）．"
Marcy's partner in this research，Debra Fischer，describes the solar system，"Here are the inner planet that goes around every 46 days，the middle planet that goes around every 242 days，and then the outer planet that goes around every three and a half to four years．"
The sun of that solar system，Upsilon Andromeda，is so near and bright that it can be seen by using no equipment during summer and fall．
For twelve years astronomers searched the skies in the belief that if our sun has planets around it，surely others do，too．Geoffrey Marcy says，"And then starting three and a half years ago，we began finding for the first time planets singly，one planet here around one star…"
"When I look up at the stars now at night，I can imagine easily that every one of them has planets around them，"says Debra Fischer．
It was a tremble （shaking） in the star that led Marcy to the planets．"The star rocks around because of the gravity of the planet as a dog owner gets pulled around by a little dog．"
Can they support life？We don't know，because present technology is not advanced enough to determine what the planets are made of．That，Marcy says，is astronomy's next challenge．
32．What's the relation between Andromeda （A），Upsilon Andromeda system （U） and the mentioned three planets （P）？D
                  
33．According to Debra Fischer，in the new solar system，B．
A．the larger a planet is，the shorter it takes to go around the star
B．the farther a planet is from the star，the longer it takes to go around the star
C．it takes all the planets around three and a half to four years to go around the star
D．the planets move around the star at the same speed
34．What led to Marcy's discovery of the planets？C
A．That any planet has gravity．
B．That a dog owner was pulled by his dog．
C．The tremble of Upsilon Andromeda．
D．That any star has its planets．
35．We can infer （推斷） that the scientists areA．
A．to find out whether the planets can support life
B．to find means to travel to the planets
C．to communicate with the living beings on the planets
D．soon to be able to answer the question．

Answer 1

分析 本文講述了Andromeda是一個(gè)星座，像太陽系；UpsilonAndromeda是一顆恒星，像太陽；three planets是它的三個(gè)衛(wèi)星，科學(xué)家想了解一下這些行星能否有生命存在．

解答 32．D 推理判斷題．通讀全文可知Andromeda是一個(gè)星座，像太陽系；UpsilonAndromeda是一顆恒星，像太陽；three planets是它的三個(gè)衛(wèi)星，因此可推出D項(xiàng)正確．
33．B 推理判斷題．根據(jù)天文常識(shí)及本文所述，任何行星的衛(wèi)星的運(yùn)轉(zhuǎn)周期不可能是一致的，越是遠(yuǎn)離行星，一般運(yùn)轉(zhuǎn)周期越長(zhǎng)．
34．C 細(xì)節(jié)理解題．由倒數(shù)第二段It was a tremble （shaking） in the star that led Marcy to the planets．"The star rocks around because of the gravity of the planet as a dog owner gets pulled around by a little dog．"可知是由于Upsilon Andromeda的抖動(dòng)導(dǎo)致其發(fā)現(xiàn)，故答案為C．
35．A 推理判斷題．根據(jù)最后一句Can they support life？We don't know，because present technology is not advanced enough to determine what the planets are made of．That，Marcy says，is astronomy's next challenge可知，科學(xué)家想了解一下這些行星能否有生命存在，其他幾項(xiàng)提到的不是本文重點(diǎn)或沒提及．

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