Question

【題目】根據(jù)短文內(nèi)容，選擇正確答案。
B
Researchers have discovered the first Earth-sized planet. It was first marked by NASA's Kepler telescope(望遠(yuǎn)鏡) so it's called Kepler-186f. It lies about 500 light years from Earth and goes around its star. The planet is the right distance from its star for water: not too close or not too far. Water is one important condition that scientists guess is necessary for life. So it could have water and possible life. It's called a true Earth cousin.
"This planet is an Earth cousin, not an Earth twin," said Barclay, who is among a team of scientists reporting on the discovery in the magazine Science this week.
"It's very exciting to find a planet similar to the Earth," Barclay said, "It's not easy work because things change as we get more measurements."
Scientists don't know anything about the air of Kepler-186f, but it will be a task for future telescopes which can study for chemicals that have something to do with life.
"It's possible for life to live in this planet, but that doesn't mean there is life in it," Barclay said.
So far, scientists have found nearly 1,800 planets in the universe.
"The past year has seen a lot of progress in the search for Earth-like planets. Kepler-186f is very important because it is the first planet that is the same temperature and is almost the same size as Earth," scientist David Charbonneau wrote in an email.
（1）Scientists have already found about _______ planets now.
A.500
B.186
C.1,800
D.1,801
（2）Which of the following about Kepler-186f is NOT true according to the passage?
A.It could have water and possible life, so perhaps we might live there.
B.It's almost as hot as and as large as Earth.
C.In the future, scientists will study the chemicals of it by telescope.
D.It's an Earth-like planet.
（3）We can probably read this article in _______.
A.a story book
B.a newspaper
C.a text book
D.a sport magazine
（4）Which of the following is the best title?
A.Space research.
B.Journey to space.
C.Is there water and possible life in Kepler-186f?
D.Scientists discover the most Earth﹣like planet.

Answer 1

【答案】
（1）C
（2）C
（3）B
（4）D
【解析】本文介紹一顆距離地球500光年的一顆與地球很相似的行星——開普勒-186f。
⑴細(xì)節(jié)理解。根據(jù)倒數(shù)第二段 So far, scientists have found nearly 1,800 planets in the universe.可知到目前為止科學(xué)家們已經(jīng)發(fā)現(xiàn)了將近1800顆行星，故選C。
⑵細(xì)節(jié)理解。根據(jù)前三段可知開普勒-186f是一個(gè)類似于地球的行星，它距離他的恒星既不太近也不太遠(yuǎn)，它上面有可能有水有生命，所以它很像地球，故ABD均沒問題。根據(jù)第四段but it will be a task for future telescopes which can study for chemicals that have something to do with life可知這是一個(gè)能夠研究與生命相關(guān)的化學(xué)物質(zhì)的未來望遠(yuǎn)鏡的任務(wù)、而不是C選項(xiàng)的“將來，科學(xué)家們將用望遠(yuǎn)鏡研究化學(xué)物質(zhì)。”所以C錯(cuò)誤。
⑶推理判斷。這是一篇天文研究的發(fā)現(xiàn)，所以可能出現(xiàn)在報(bào)紙上。故選B。
⑷主旨大意。本文講述發(fā)現(xiàn)了一顆跟地球很像的行星——開普勒-186f，并介紹對(duì)它的研究。故選D