概要：TEACHING PROCEDURESI. Lead-in1) Show students the picture of Xiaohua and ask them two questions:Q1. You must be quite familiar with this girl now, right?(Right. She is a Xiaohua, a girl who has been infected with AIDS.)Q2. How was she infected with AIDS?(She was infected by birth.)2) Xiaohua was born dying and she has no choices. But many people who really have many choices don’t realize how precious life is and do a lot of harms to themselves.1. Show students some pictures o
高二Unit 7 教案（旧教材供参考）,标签：高二英语选修7教案,高二英语下册教案,http://www.67jx.comTEACHING PROCEDURES
I. Lead-in
1) Show students the picture of Xiaohua and ask them two questions:
Q1. You must be quite familiar with this girl now, right?
(Right. She is a Xiaohua, a girl who has been infected with AIDS.)
Q2. How was she infected with AIDS?
(She was infected by birth.)
2) Xiaohua was born dying and she has no choices. But many people who really have many choices don’t realize how precious life is and do a lot of harms to themselves.
1. Show students some pictures of people who smoke a lot, drink a lot or even have drugs, pointing out all these can lead to deadly disease.
2. Based on the above talking, teacher raise the following questions:
If they go on doing this, what would happen?
If you were Xiaohua, what would you like to tell them?
If you were a doctor, what would you do?
If you were one of them, what would you do?
3. Some people do not take Xiaohua or doctor's advices. Finally, they die.
If they had not drunk so much wine, he would not have died at such an early age.
If he had (not)..., he would (not) have...
Ask students to make more similar sentences, using the Subjunctive Mood.
II. More Situations
1. The woman in the picture is Helen, who has been living with AIDS for many years. Now she is celebrating her birthday with her dog. If you were Helen, what kind of wishes would you make?
2. It is said that a falling star can let your dream come true. If you saw a falling star, what kind of wishes would you make?
3. Besides a falling star, a magic lamp can also let your dream com true. If you had a magic lamp, what would you ask it to do for you ?
III. Homework
1. Finish all the grammar exercises on SB and WB
2. Review the whole unit
IV. Background Information
What is AIDS?
--http://www.aids.org/factSheets/index.html#Preventing
WHAT DO "AIDS" MEAN?
AIDS stands for Acquired Immune Deficiency Syndrome:
• Acquired means you can get infected with it;
• Immune Deficiency means a weakness in the body's system that fights diseases.
• Syndrome means a group of health problems that make up a disease.
AIDS is caused by a virus called HIV, the Human Immunodeficiency Virus. If you get infected with HIV, your body will try to fight the infection. It will make "antibodies", special molecules that are supposed to fight HIV.
When you get a blood test for HIV, the test looks for these antibodies. If you have them in your blood, it means that you have HIV infection. People who have the HIV antibodies are called "HIV-Positive". Fact Sheet 102 has more information on HIV testing. Being HIV-positive, or having HIV disease, is not the same as having AIDS. Many people are HIV-positive but don't get sick for many years. As HIV disease continues, it slowly wears down the immune system. Viruses, parasites, fungi and bacteria that usually don't cause any problems can make you very sick if your immune system is damaged. These are called "opportunistic infections" (see Fact Sheet 500).
HOW DO YOU GET AIDS?
You don't actually "get" AIDS. You might get infected with HIV, and later you might develop AIDS.
You can get infected with HIV from anyone who's infected, even if they don't look sick, and even if they haven't tested HIV-positive yet. The blood, vaginal fluid, semen, and breast milk of people infected with HIV has enough of the virus in it to infect other people. Most people get the HIV virus by:
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