新人教版英語(yǔ)高一下module3unit4astronomythescienceofthestars一(存儲(chǔ)版)
【正文】 ? 15. W for the cars when you cross the street. 二、 Unit4 詞匯串記 Our geography teacher says the earth is only one of the plas of the giant . other plas, life on the earth, but life’s origin is still a . Different and cultures have separate ideas. The teacher says it may be divided into four stages. The first stage is about how the universe began. A widely accepted can explain it. After the “Big Bang” , began to form and bine to create stars and other bodies. The second stage is how the earth formed. Between and years ago, clouds and dust in space settled into a solid . The earth became that it often exploded. The and water appeared. Water is a matter for life to exist on the earth. It also dissolves gases and acids. The third stage is about plants’ and animals’ appearance. At first, plants in the water appeared and
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