题型:语法填空(语篇) 题类:常考题 难易度:困难
青海省西宁市2017-2018学年高一下学期英语期末考试试卷
The earth was just cloud of dust after the “Big Bang”. The earth exploded (loud) with fire and rock. They were in time to produce carbon, nitrogen, water vapour and other gases, which were (make) the earth's atmosphere. As the earth cooled down, water began to appear on its surface. It allowed the earth to dissolve (harm) gases. Then life began to develop.
Small plants multiplied and filled the oceans and seas with oxygen. This encouraged the (develop) of early shellfish and fish. Land animals such as insects, reptiles and dinosaurs (appear) after green plants came into being. Small clever animals spread all the earth. They are putting too much carbon dioxide into the atmosphere, prevents heat from escaping from the earth into space. life will continue on the earth for millions of years to come will depend on whether this problem can (solve).
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