1.3 Breathing
1.3 Breathing Exercise 1 Comparatives.
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This exercise gives you practice in describing what happens when we breathe in and breathe out. You have to think of a comparative word to complete each description.
Look at Comparative and superlative adjectives in the English skills and support section for information about comparatives.
Arun can push more water out of the bottle than Marcus, showing that the
SA
a
M
Complete the sentences, using suitable comparative words.
capacity of his lungs is .............................. than Marcus’s.
b
In general, the .......................... a person’s lungs, the less air they can breathe out in one breath.
c
When we breathe out, the diaphragm relaxes and makes the space inside the chest cavity ........................... .
d
When we are breathing out, the pressure in the chest cavity is .......................... than the pressure of the air outside the body.
e
When we breathe in, the diaphragm contracts and makes the pressure inside the chest cavity ........................... .
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