© Macmillan Publishers Limited 2011 PHOTOCOPIABLE

The respiratory system

Name Class

unit 2Class worksheet 2

Label the respiratory system.

nose and mouth pharynx bronchi trachea lungs

•Ask the pupils to look at the diagram of the respiratory system. Say the parts of the respiratory system in turn and get them to point to the part as you say it.•Elicit from the pupils what each part of the respiratory system does.•Ask them to read the sentences and write the names of the parts of the respiratory system.•Ask the pupils what they know about how we breathe.•Finally, ask them to complete the text about how we breathe.

Complete the text about how we breathe.

We breathe oxygen from the air. A sheet of muscle called the diaphragm when we breathe in. The oxygen from the air passes from the lungs into our . Carbon dioxide from our body passes from our blood into our . When we breathe the carbon dioxide leaves our lungs and the diaphragm .

We breathe in air through these.

This opens when we breathe in.

pharynx

Air first goes down this tube.

Air travels down these two tubes and enters the lungs.

Oxygen from the air passes from these into our blood.

ac

b

e

d