作业帮The earth we live on is a planet.Are there people living on
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/25 01:06:38
The earth we live on is a planet.Are there people living on any other planets?To answer this question,we have to talk out why there are people on the earth,A few billion years ago ,the earth was only a sea of fire.There was on life on the earth,not mention human beings.After a very,verylong time,the earth grandually cooled down .Oceans and land appeared .Because there is air and water on the earth and the climate is mild ,life evolved .After a long time of evolution ,humam beings gradually came into being.
There are many other planets like the earth.There is water and air on them ,and it is not too cold or too hot ,here might be life ,even human life on them .however ,up to now,we haven"t found other pianets with people living on them.
一.根据文章,判断下列句子的正误,正确的写ok,错误的划线改错
1.The earth was once a sea of fire a few million years ago.
2.life began to evolve when the climate was very wet.
3.Scientists have found other pianets with people living on.
二.What conditions may make appeaeance of life on the earth or other planets?
1.（ ）2.（ ）3.（ ）
There are many other planets like the earth.There is water and air on them ,and it is not too cold or too hot ,here might be life ,even human life on them .however ,up to now,we haven"t found other pianets with people living on them.
一.根据文章,判断下列句子的正误,正确的写ok,错误的划线改错
1.The earth was once a sea of fire a few million years ago.
2.life began to evolve when the climate was very wet.
3.Scientists have found other pianets with people living on.
二.What conditions may make appeaeance of life on the earth or other planets?
1.（ ）2.（ ）3.（ ）
一1错误是a few billion years ago
2ok
3错误是haven't
二1There is water on the planet.
2There is air on the planet.
3The climate is mild.
2ok
3错误是haven't
二1There is water on the planet.
2There is air on the planet.
3The climate is mild.
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