Unit4 reading

I.Read the text and match the main idea of each paragraph.

Paragraph 1: a.The importance of water for life

Paragraph 2: b.The development of plants and animals on the earth

Paragraph 3: c.The formation of the earth

Paragraph 4: d.A widely accepted theory about the formation of the universe

Paragraph 5: e.The arrival of humans and their impact on the earth

II.Fill in the blacks. The development of the earth

Time The earth A cloud of dust A solid globe Exploded with fire and rock Produce C/N water vapor, etc. Water began to appear III.Can you put the order of development of life into a time line?