Question

We have always been interested in the Moon. 2000 years ago people already knew it

m1.around the Earth and where it would be in the sky at different times of the year. At that time, everything about the Moon was learned by watching it c2.in the sky.

When scientists could use telescopes to study the Moon more closely, their ideas began to change. They could see the Moon was made of r3.. Most scientists thought Moon rocks would be different from those on the Earth. This was because they believed the Moon had once been a planet that had been caught in the Earth’s g4.millions of years earlier.

In 1969 Moon rocks were finally brought to the Earth and s5.. Much to their surprise, scientists found that, except for water, the Moon and the Earth were made of the s6.things. Once again new ideas were needed for this new information.

After years of study, most scientists now think t7.the Moon was once part of the Earth. They believe very early in its history, maybe 4 billion (十亿) years ago, something about the size of Mars h8.the Earth. This sent billions of rocks into space around our

p9.. These rocks slowly joined together and after many years became the Moon.

In the future, even though our ideas about the Moon may change again, we will still be i10.in it.

Answer

1.moves

2.carefully

3.rock

4.gravity

5.studied

6.same

7.that

8.hit

9.planet

10.interested

【解析】本文叙述了我们都对月球感兴趣，在1969年月球的岩石最后被带回到地球，研究发现，除了水之外，月球和地球都是有同样的东西组成的。大多数科学家现在认为月球是地球的一部分。

1.句意：2000 多年前人们就知道了月球围绕地球转。因为这是科学真理，所以宾语从句用一般现在时，句子的主语是第三人称单数，所以谓语动词用单数形式，故答案为：moves 。

2.句意：在那时，关于月球的一切都是通过仔细观察了解到的。这里应该用副词来修饰动词。

故答案为：carefully。

3.句意：他们能看见月球是有岩石组成的。根据Most scientists thought Moon rocks would be different from those on the Earth.可知，月球是有岩石组成的。这里岩石这种材料，用不可数名词rock，故答案为：rock。

4.句意：这是因为他们相信月球曾经是一个行星，这个行星在几百万年前就受到地球的引力。根据常识可知这里指地球的引力gravity，是不可数名词，故答案为：gravity。

5.句意：在1969年月球的岩石最后被带回到地球然后被研究。根据scientists found that, except for water, the Moon and the Earth were made of the s___6___things. 可知，岩石被带回然后被研究。and连接的是两个并列的被动形式。故答案为：studied。

6.句意：令人吃惊的是，科学家发现除了水之外，月球和地球都是有同样的东西组成的。根据After years of study, most scientists now think t_____7_____the Moon was once part of the Earth. 可知，大多数科学家认为月球是地球的一部分，所以它们又很多相同的东西。故答案为：same。

7.句意：几年的研究之后，大多数科学家现在认为月球是地球的一部分。这里空格前后都是句子，空格后的句子不缺少成分，所以用连词that，不作成分。故答案为：that。

8.句意：他们相信历史上很早的时候，也许40亿年前，火星大小的一个东西撞击了地球。根据4 billion (十亿) years ago, 句子应该用一般过去时。故答案为：hit。

9.句意：这就向我们行星的周围的太空发射了几十亿岩石。这里指我们居住的这一个行星，所以用单数形式。故答案为：planet。

10.句意：在未来，即使我们对于月球的想法再改变，我们仍然会对它感兴趣的。短语be interested in sth对某事感兴趣。句子的主语we指的是人，所以应该用 interested ，表示令人感兴趣的用 interesting，故答案为：interested。