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The Earth
6%
70%
16%
8%
Ocean
Desert
Frozen
places
Green lands
16%
8%
6%
70%
01
02
03
04
What is the earth made up of?
Desert
It’s getting larger and larger.
Green Lands
Where there are plants , there are our home.
Ocean
It covers the most part of the earth, but it is being polluted seriously.
Frozen Places
It is so cold that people can’t live there.
Lesson8 Why Are Plants Important?
Word Study
pleasant [‘ple z(?)nt] n. 使人愉快的