II课文缩写

　　The earth was just a cloud of d ________after the "Big Bang". The earth __________(爆炸)loudly with fire and rock. They were in t________ to produce many things, which were to make the earth's atmosphere. As the earth cooled down, water began to appear on its surface. It allowed the earth to dissolve h________ gases. Then life began to develop.

The first small plants m__________ and filled the oceans and seas with oxygen. This encouraged the ____________(发展)of early shellfish and fish. Land animals such as insects, reptiles and dinosaurs and so on appeared after green plants appeared. Small clever animals s________ all over the earth. They are putting too m_______ carbon dioxide into the atmosphere, which ___________(阻止)heat from the earth into space. Whether life will continue on the earth for millions of years to come will d ________on whether this problem can be solved.