1. Listening: Part 1 1. AIDS = 1. AIDS = 2. Answer the following questions: 2. Answer the following questions: (1) What does “acquired” mean? (1) What does “acquired” mean? (2) What is the function of one’s immune system? (2) What is the function of one’s immune system? (3) What does AIDS do to our immune system? (3) What does AIDS do to our immune system? Part 2 1. When a person infected with HIV __________ AIDS, he or she 1. When a person infected with HIV __________ AIDS, he or she easily gets ______. easily gets ______. 2. A person with AIDS has a very ______ ________ __________. 2. A person with AIDS has a very ______ ________ __________. 3. Many AIDS patients die of _________ or serious _______, but 3. Many AIDS patients die of _________ or serious _______, but there are also many diseases that we have never ________ of. there are also many diseases that we have never ________ of. 4. Therefore, much of the ___________ an AIDS patient receives is 4. Therefore, much of the ___________ an AIDS patient receives is meant to help the body ________ _________ against disease. meant to help the body ________ _________ against disease. Acquired Immune Deficiency Disabled ( 获得性免疫缺陷综合症 ) It means that you can get infected with the disease It protects our body from disease It breaks do the immune system develops sick week immune system infections colds heard treatment defend itself

2. Listening: Part 1 1. How do people become infected with HIV/ AIDS? 1. How do people become infected with HIV/ AIDS? 2. What can we do to protect ourselves from HIV / AIDS? 2. What can we do to protect ourselves from HIV / AIDS? 3. What can we do to learn more about HIV / AIDS? 3. What can we do to learn more about HIV / AIDS? blood transfusion unprotected sex childbirth learn more about the disease and avoid unsafe practices ask the doctors and nurses look up the information on books or through the Internet

3. Subjunctive Mood: 与事实相反, 是说话人一种不可能实现的设想 1.“If sb. …., sb.” 2. “sb. wishes that - clause” 3. Revision: (1)I wish I _____ (be) the bird flying in the sky now. (1)I wish I _____ (be) the bird flying in the sky now. (2)If there _____ (be) no exams, we ___________ (have) a much (2)If there _____ (be) no exams, we ___________ (have) a much happier time after school. happier time after school. (3)I wish I _________ (see) you yesterday. (3)I wish I _________ (see) you yesterday. (4)If I ______ (have) enough money, I _________________ (buy) (4)If I ______ (have) enough money, I _________________ (buy) these books. these books. (5)He wishes he _____________ (travel) around the world someday. (5)He wishes he _____________ (travel) around the world someday. (6)Everything __________ (be) different if there _______ (be) no (6)Everything __________ (be) different if there _______ (be) no the Communist Party. the Communist Party. If sb. were / did…, sb. would / could do… Now: sb. wishes that sb. were / did… In the future: sb. wishes that sb. would / could do… In the past: sb. wishes that sb. had done … were were would have had seen had could / whould buy would travel would be were