Page 6 - 新思维科学活动用书6 样章
P. 6
1.1 The circulatory system
Practice
3 Circle the letter of the correct answer to each of the following questions.
a Your heart pumps blood through the body. This process is called …
A heartbeat
B circulation
C pulsing
b The circulatory system is made up of the …
A heart only
B heart and blood vessels
C heart, blood vessels and blood
c The left side of the heart pumps blood that contains …
A oxygen
B no oxygen
C many different gases
d The right side of the heart pumps blood to …
A the brain
B the lungs
C the kidneys
e Which blood vessels bring oxygen to all the body
cells and carry away waste?
A arteries
B veins
C capillaries
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