Millions of stars are travelling about in space. A few form groups which travel together,

Millions of stars are travelling about in space. A few form groups which travel together, but most of them travel alone.
And they travel through a universe which is so large that one star seldom comes near to another. For the most important part each star makes its journey in complete loneliness, like a ship on an empty ocean. The ship will be well over a million miles from its nearest neighbour. From this it is easy to understand why a star seldom finds another anywhere near it.
We believe, however, that some two thousand million years ago, another star wandering(漫游) through space, happened to come near our sun just as the sun and the moon raised its tides(潮汐) on the earth, so this star must have raised tides on the surface of the sun. But they were very different from the small tides that are raised in our oceans; A large tidal(潮汐的) wave must have travelled over the surface of the sun, at last forming a mountain so high that we cannot imagine it. As the cause of the disturbance came nearer, so the mountain rose higher and higher. And before the star began to move away again, its tidal pull had become so powerful that this mountain was torn to pieces and thrown off small parts of itself into space.
These small pieces have been going round the sun ever since. They are the planets.
【小题1】Most stars are .A．following a regular path in spaceB．moving about without a fixed courseC．seldom wandering about in the universeD．always travelling together【小题2】Some two thousand years ago, the mountain on the sun was raised probably because .A．the star moved away from the sun B．another star happened to come near the sunC．the sun and the moon raised the tides on the earthD．a large tidal of wave travelled over the surface of the sun【小题3】The article suggests that .A．how space formedB．our earth exists before the sunC．no one knows where the earth comes fromD．our earth used to be a high mountain in the sun【小题4】The expression “the cause of the disturbance” refers to .A．the large tidal waveB．the powerful tidal pullC．the star coming near the sunD．one of sun’s planets【小题5】 In the article, the writer mainly wants to tell us .A．where the planets in the universe came from B．how the high mountains were formed on the sunC．that the universe is so large that we cannot imagine it D．why the tides over the surface of the sun were so powerfulB

(答案→)B 解析：【小题1】根据A few form groups which travel together, but most of them travel alone. 描述，可知大部分没有固定的轨道。故选B。【小题1】根据We believe, however, that some two thousand million years ago, another star wandering(漫游) through space, happened to come near our sun just as the sun …… at last forming a mountain so high that we cannot imagine it. As the cause of the disturbance came nearer, so the mountain rose higher and higher.描述，可知选B。【小题1】根据And before the star began to move away again, its tidal pull had become so powerful that this mountain was torn to pieces and thrown off small parts of itself into space.描述，可让我们想到地球曾经也是太阳上的一座高山。故选D。【小题1】联系上文描述，可知这指的是这颗星星来到太阳附近，故选C。【小题1】通过阅读短文，可知这篇短文主要说明了宇宙中一些行星的来历，故选A。

谢谢了