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《Listening and vocabulary》精品PPT课件优质课下载
Find the main idea of each para
Para 1 a) The importance of water for life.
Para 2 b) The arrival of humans and their effects.
Para 3 c) A theory about how the universe was
formed.
Para 4 d) The formation of the earth.
Para 5 e)The development of plants and animals.
c
d
a
e
b
Careful reading Read para 1 and fill in the blanks
No one knows ________(exact) how the earth began, as it _______(happen) so long ago. However, according to a widely ________(accept) theory, the universe began with a “Big Bang”_______ threw matter in all _______(direct). After that, atoms began to form and combine _______(create) stars and other bodies.
exactly
happened
accepted
that
directions
to create
Do you know how the earth came into being ?
Read para 2 and fill in the blanks
a cloud of
dust
a solid ball