Question

【題目】

We do everything we can to hide from the sun in summer. Some wear hats, others buy umbrellas or sit under trees. But can you imagine what it would be like to have two suns over your head?

Well, the Kepler-47 system does have two stars in its sky, according to a discovery in the Science Journal.

The new system was found by NASA’s Kepler space telescope. It is about 5,000 light-years away from us. One of the stars is similar to our sun, but the other is much smaller and less than 1 percent as bright.

In fact, systems with two stars are quite common. “Unlike our sun, many stars are part of multiple-star(多個恒星的) systems. There, two or more stars circle each other,” said a scientist from NASA’s Research Center in the US.

Scientists are more surprised that there could be two planets in the Kepler-47 system because it is very hard for planets to form in such a complex environment.

One of the planets, Kepler-47b, is closer to the stars. It’s three times larger than Earth. The other one, Kepler-47c, is about 4.5 times the size of Earth. Most importantly, Kepler-47c is neither too close nor too far away from the stars. It means the planet won’t be too hot or cold. So scientists believe there could be water on it or even life.

【1】Which of the ways is NOT mentioned in the passage for people to hide from the sun?

A.Wearing hatsB.Wearing sunglassesC.Buying umbrellasD.Sitting under trees

【2】According to Paragraph 3 and 4, the two stars in the Kepler-46 system_______.

A.are similar to our sun in sizeB.always move around each other

C.are quite unusual to exist(存在) togetherD.belong to another multiple-star system as well

【3】What does the word “complex” in Paragraph 5 mean?

A.不尋常的B.單一的C.艱難的D.困惑的

【4】Which is TRUE about the planets in the Kepler-47 system?

A.Kepler-47c is neither too hot nor too cold.

B.Kepler-47c is proved to be suitable for lives.

C.Kepler-47b is 4.5 times as large as the Earth.

D.Kepler-47b is farther away from the stars than Kepler-47c.

【5】The passage mainly talks about __________.

A.the newly-found Kepler-47 systemB.the stars and planets of multiple-star system

C.the information of different systems in spaceD.the special environment of our solar system

Answer 1

【答案】

【1】B

【2】B

【3】C

【4】A

【5】A

【解析】

這篇短文主語講述了開普勒-47系統(tǒng)中可能有兩顆行星，這意味著地球不會太熱或太冷。所以科學家們相信它上面可能有水，甚至還有生命。

【1】細節(jié)理解。根據(jù)文中We do everything we can to hide from the sun in summer. Some wear hats, others buy umbrellas or sit under trees.可知，夏天我們盡一切可能躲開太陽。有些人戴帽子，有些人買雨傘或坐在樹下。文中沒有提到戴太陽鏡。故選B。

【2】細節(jié)理解。根據(jù)文中There, two or more stars circle each other,” said a scientist from NASA’s Research Center in the US.可知，開普勒-46系統(tǒng)中的兩顆恒星總是相互運動。故選B。

【3】詞句猜測。根據(jù)上文Scientists are more surprised that there could be two planets in the Kepler-47 system because it is very hard for planets to form可知這里是說很難形成，這里是complex的意思是“艱難的”這里是如此一個艱難的環(huán)境。故選C。

【4】推理判斷。題干“開普勒-47系統(tǒng)中的行星說正確的？” 根據(jù)文中Most importantly, Kepler-47c is neither too close nor too far away from the stars. It means the planet won’t be too hot or cold.可知，開普勒-47C既不太熱也不太冷。故選A。

【5】主旨大意。通讀整篇短文可知，本文主要討論新發(fā)現(xiàn)的開普勒-47系統(tǒng)。故選A。