求高中英语演讲稿,主题是地球的形成,拜托各位热心人士%>_

求高中英语演讲稿,主题是地球的形成,拜托各位热心人士%>_
求高中英语演讲稿,主题是地球的形成,拜托各位热心人士%>_<%

求高中英语演讲稿,主题是地球的形成,拜托各位热心人士%>_
Good morning classmates,
It's my great honor to stand here to give a lectrue on how the earth come into being.
The process is divided into three steps.The first was about five billion years ago.At that time,numbers of valconies was actively.The magma flowed everywhere and lots of steam was above the magma.It was the prototype of the earth.
The second happened about three billion years ago.The magma cooled and the prototype of land had exsisted.However,most of other parts was ordinary sea and the earliest bacteria was in it.This was the earliest life on the earth.
The third happened about one billion years ago.The first gourp of plants came to the land.The land wore the green coat.That's all for the lectrue,thank you for listening.