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READING 2 Read. Check T for True and F for False.

1 Listen and read. TR: 4.9 1. Sneezing sends germs out of your nose. T F

Why Do We Sneeze? 2. The sneeze center is in your brain. T F

3. People always sneeze because they have a cold. T F
Aaaaa . . . choo! When you have a cold, you often
sneeze. Why? Because germs make a home in your nose, 4. We get colds from our parents. They are inherited. T F

and they tickle you! Sneezing is your body’s way of sending
germs out of your nose. Many animals sneeze, too! 3 Read. Read the text again. Put the sentences in order.

What happens? Your nose doesn’t like the germs, so
it sends a message to a part of your brain called the A sneeze from one person 1 Your nose tickles.
“sneeze center.” The sneeze center sends a message to on the subway can reach

your muscles. Then all your muscles push hard. Even about 150 other people. The germs go out of your nose.
your eyes push. That’s why you close your eyes when you Your nose sends a message to the sneeze center in the brain.
sneeze. You should have a tissue ready because the sneeze
happens very quickly. A sneeze can travel as fast as a car! Your muscles push hard.

Some people sneeze when they don’t have a cold. It Your brain tells your muscles to stop the tickle.
happens when they go out into the sunshine. They are
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called “photic sneezers.” Photic sneezing is an inherited
trait. It comes from one of your parents. Do you know
anyone who sneezes because of the sun? 4 Ask and answer. Ask questions How many people

and take notes. Take turns with can a sneeze reach? It can reach
a partner. 150 people.

Sneezing

Why?

Who?

How?

germs Iguanas sneeze How fast?
more than any
other animal!
How many people?

70 Unit 4 71