Track 6

Unit 9

Public Health

Building Immunity

Take the unit test

listen to each question circle the letter of the correct answer.

1) What is the main topic of the lecture?

2) Which of the following topics does the lecturer not discuss?

3) The lecturer says our bodies adapt. They are just to what’s in our environment. What is this mean?

4) Why do many very young children get sick a lot?

5) A businessman gets sick with influenza in Paris after he returns home to Korea. His family gets sick. Why? choose two answers.

6) If you catch a cold. You’ll probably recover in about a week. Why?

7) Why do people who get the chickenpox then develop lifelong immunity?

8) Which of the following statements does not reflect the lecturer’s attitude toward vaccines?

9) What connection does the lecturer make between illnesses like the chickenpox and vaccines?

10) Which statement best summarizes the speaker’s attitude toward staying healthy?