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阅读下面材料,在空白处填入适当的内容(1个单词)或括号内单词的正确形式。

No one knows exactly how the earth began, as it 1.(happen) so long ago. However, according to a 2.(wide) accepted theory, the universe began with a “Big Bang” that threw matter 3.all directions. After that, atoms began to form and combine to create stars and other 4.(body). For several billion years after the “Big Bang”, the earth was still just5.cloud of dust. What it was to become was uncertain 6.between 4.5 and 3.8 billion years ago when the dust settled into a solid globe. The earth became so 7.(violence) that it was not clear8.the shape would last or not. It exploded loudly with fire and rock. They were in time 9.(produce) carbon, nitrogen, water vapour and other gases, which were to make the earth’s atmosphere. What is even10.(important) is that as the earth cooled down, water began to appear on its surface.

高三英语语法填空困难题

少年,再来一题如何?
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