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求老师解答:阅读下列短文,根据上

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/16 16:03:14
求老师解答:阅读下列短文,根据上
阅读下列短文,根据上下文填入适当的词语,或使用括号中的词语的适当形式填空.
     No one knows exactly how the earth began.However,according to a widely accepted theory,it
began    1  a "Big Bang".Then the earth exploded loudly and produced water vapor and many gases, 
   2  (make) the earth's atmosphere.And then as the earth cooled down,water appeared and stayed 
   3  the surface.It was the presence of water     4   allowed the earth to dissolve harmful gases and acids
into the oceans and seas,    5  made it possible for life to develop.And the    6    (appear) of small plants
encouraged the development of early shellfish and all sorts of fish.Next,green plants began to grow on
land.     7    were followed by land animals.Later,reptiles appeared for the first time,after which dinosaurs developed.However,they suddenly disappeared.Therefore,mammals    8   (rise) on the earth.Finally,
humans appeared and spread all over the earth.However,they are putting too much carbon dioxide into
the atmosphere,making the earth too hot to live on.So    9   life will continue on the earth will depend on
whether this problem can     10  
1.with   2.making   3.on   4.that    5.which   6.appearance  
7.They   8.rose     9.whether 10.be solved