What is HIV？

HIV is a virus that attacks the body's immune system-the body's defense against diseases. A person infected with HIV may not have symptoms to start with, but eventually without effective treatment the immune system will become very weak and they will no longer be able to fight off illnesses.

What's a virus?

A virus is a very small living thing that causes disease.

What is AIDS?

艾滋病即获得性免疫缺陷综合征（acquired immunodeficiency syndrome, AIDS）。这是一种慢性致死性传染病，由人类免疫缺陷病毒（human immunodeficiency virus, HIV）引起。

Step 3 Quiz

T: Now let\s do a quiz and see how much do you know about HIV/ AIDS.

Slide show

True or False Quiz

1. Only bad people get AIDS.

2. It is dangerous to get close to a person with AIDS.

3. In 2002, there were more than 40 million people living with HIV/ AIDS in the world.

4.You can only get HIV from injecting drugs(毒品).

5. People who have HIV look different from everyone else.

6. Evidence show that men get AIDS more easily than women.

7. It is very likely that you will die if you become infected with HIV.

Keys： FFTFFFT

Step 4 Reading

Skim the poster on P22 and try to find out the purpose of each

section .

Section 1:

Background information about what the diseases.

Section 2:

Ways to protect yourself.

Section 3:

Some common myths dispelled.

2. Read the poster on P22 and then choose the answers to the following questions:

1. The word "homosexuals" means______.

A. People only attracted by the same sex

B. People who don't care about themselves

C. People who are very sexy.

People who often have sex.

2. We can infer from the passage that__________.

HIV is the same as AIDS.

B. HIV is different from AIDS.

C. HIV weakens a person's immune system.

D. You can have HIV in your blood for quite a long time.