Question

【题目】

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(多个恒星的) 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.不寻常的B.单一的C.艰难的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】

这篇短文主语讲述了开普勒-47系统中可能有两颗行星，这意味着地球不会太热或太冷。所以科学家们相信它上面可能有水，甚至还有生命。

【1】细节理解。根据文中We do everything we can to hide from the sun in summer. Some wear hats, others buy umbrellas or sit under trees.可知，夏天我们尽一切可能躲开太阳。有些人戴帽子，有些人买雨伞或坐在树下。文中没有提到戴太阳镜。故选B。

【2】细节理解。根据文中There, two or more stars circle each other,” said a scientist from NASA’s Research Center in the US.可知，开普勒-46系统中的两颗恒星总是相互运动。故选B。

【3】词句猜测。根据上文Scientists are more surprised that there could be two planets in the Kepler-47 system because it is very hard for planets to form可知这里是说很难形成，这里是complex的意思是“艰难的”这里是如此一个艰难的环境。故选C。

【4】推理判断。题干“开普勒-47系统中的行星说正确的？” 根据文中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，开普勒-47C既不太热也不太冷。故选A。

【5】主旨大意。通读整篇短文可知，本文主要讨论新发现的开普勒-47系统。故选A。