【題目】 Star scientists have taken the first ever picture of a black hole, which is from a far away galaxy (銀河系). It is 40 billion km across-three million times the size of the Earth-and has been described by scientists as "a monster".
The black hole is 500 million trillion km away and was photographed by a network of eight telescopes (望遠(yuǎn)鏡) across the world.
Details have come out today in Astrophysical Journal Letters. Prof Heino Falcke, says "It is one of the heaviest black holes that we think there is. It is a real monster."
The picture shows a quite bright "ring of fire", as Prof Falcke describes it. The bright halo is caused by superheated gas fling into the hole. The light is brighter than all the billions of other stars in the galaxy-which is why it can be seen so far away from Earth.
The dark circle at the centre is the point at which the gas enters the black holes, which is an object that has such a large gravitational (萬(wàn)有引力的) pull, not even light can escape.
【1】The black hole is ________ times the size of the Earth.
A.two millionB.three millionC.six million
【2】In which part of the newspaper can we read this passage?
A.SportsB.LifestyleC.Science
【3】The underlined word in paragraph four means ________.
A.光圈B.球體C.火團(tuán)
【4】Which of the following is TURE?
A.The black hole is 500 million km away.
B.This black hole is the heaviest so far.
C.The light from the black hole is the brightest of all the stars.
【5】From the passage, we can infer that ________.
A.Scientists are all unsatisfied with the result.
B.The black hole is dark.
C.It takes a lot of telescopes to work together to get a picture of the black hole.
【答案】
【1】B
【2】C
【3】A
【4】A
【5】C
【解析】
本文講述了恒星科學(xué)家們拍攝了第一張黑洞的照片,它來(lái)自一個(gè)遙遠(yuǎn)的星系,它的直徑達(dá)400億公里,是地球的300萬(wàn)倍,被科學(xué)家稱(chēng)為“怪物”。黑洞位于5億萬(wàn)億公里外,是由全球8個(gè)望遠(yuǎn)鏡組成的網(wǎng)絡(luò)拍攝的。
【1】細(xì)節(jié)理解題。根據(jù)“It is 40 billion km across-three million times the size of the Earth-and has been described by scientists as "a monster".”可知它的直徑達(dá)400億公里,是地球的300萬(wàn)倍,故選B。
【2】細(xì)節(jié)理解題。根據(jù)“Star scientists have taken the first ever picture of a black hole, which is from a far away galaxy”可知恒星科學(xué)家們拍攝了第一張黑洞的照片,它來(lái)自一個(gè)遙遠(yuǎn)的星系,可推測(cè)出是科學(xué)板塊,故選C。
【3】詞義猜測(cè)題。根據(jù)“The picture shows a quite bright "ring of fire"”可知這張照片顯示了一個(gè)非常明亮的“火環(huán)”,可推測(cè)出該單詞的意思是“光圈”,故選A。
【4】推理判斷題。根據(jù)“The black hole is 500 million trillion km away”可知黑洞是5萬(wàn)億億公里,與選項(xiàng)A內(nèi)容相符;根據(jù)“It is one of the heaviest black holes that we think there is.”可知這是我們認(rèn)為存在的最重的黑洞之一,與選項(xiàng)B內(nèi)容不符;根據(jù)“The bright halo is caused by superheated gas fling into the hole. The light is brighter than all the billions of other stars in the galaxy”可知明亮的光暈是由于過(guò)熱的氣體進(jìn)入黑洞造成的,它發(fā)出的光比銀河系中其他數(shù)十億顆恒星發(fā)出的光都要亮,與選項(xiàng)C內(nèi)容不符;故選A。
【5】推理判斷題。根據(jù)“The black hole is 500 million trillion km away and was photographed by a network of eight telescopes (望遠(yuǎn)鏡) across the world.”可知這個(gè)黑洞位于5億萬(wàn)億公里之外,是由全世界8個(gè)望遠(yuǎn)鏡組成的網(wǎng)絡(luò)拍攝的,可推測(cè)出需要很多望遠(yuǎn)鏡一起工作才能拍出黑洞的照片。故選C。
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