Bài viết tiếng anh nói về cơ (03 your muscles)

/
Melvin and Gilda Berger
SCHOLASTIC INC.
New York Toronto London Auckland Sydney
Mexico City New Delhi Hong Kong Buenos Aires
What
do your
muscles
do?
Muscles help your body move.
Fun Fact
Hundreds of muscles
help you take one step.
Muscles pull on bones
to make them move.
Fun Fact
Muscles can get tired when
you use them a lot.
Muscles help you swim.
Muscles help you
run.
Fun Fact
Your heart and breathing
muscles never get tired.
Muscles make your heart beat.
Muscles help you breathe.
Muscles let you smile.
[
Fun Fact
You use more muscles to

frown than to smile.
Muscles let you frown.
Fact
Your stomach muscles
work without you
thinking about them.
Muscles help you swallow.
stomach
Muscles push food
through your body.
Fun Fact
Bigger muscles can
pull harder and
work longer.
~
Exercise helps muscles grow bigger.
Exercise helps muscles
grow stronger.
·
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Exercise gives you muscle power!
ISBN
0-439-77371-7
~ 111111111111111111111111
9 780439 773713