高二senior2unit7readingppt

高二senior2unit7readingppt内容摘要：

rming How much do you know about AIDS? 2020/12/24 HIV amp。 AIDS 7 • HIV is short for Human Immunodeficiency Virus. • HIV is the virus that causes AIDS. H Human: because this virus can only infect human beings. I Immunodeficiency: The virus will make the body39。 s immune system not work well. V Virus: because this living thing is a virus, which take the place of a certain part of the human cells and selfproduce. HIV • AIDS stands for Acquired Immune Deficiency Syndrome. (后天免疫缺损综合症） AIDS A Acquired: to “acquire” something is to get something, so “acquired” means that you can get infected with the disease. I Immune: “immune” es from “immune system”, the system that protects our body from diseases. D Deficiency: if something is “deficient”,it means that it isn’t working well. S Syndrome: it means all the bad things that happen to your body when the immune system doesn’t work. 2020/12/24 HIV amp。 AIDS 9 Task 2 Discussion • Discuss in groups of four: is HIV Transmitted? What activities allow HIV transmission ? activities don’t allow HIV transmission? 2020/12/24 HIV amp。 AIDS 10 1★ HIV transmitted from an infected person to another through: • infected blood transfusions • Sexual liquids • Breast milk HIV not transmitted through : saliva（唾液） , tears, sweat（汗水 )and urine（小便） 2020/12/24 HIV amp。 AIDS 11 HIV Transmission: Activities That Allow HIV Transmission • Unprotected sexual contact • Direct blood contact, including injection drug needles, blood transfusions. Mother to baby (before or during birth, or through breast milk) 2020/12/24 HIV amp。 AIDS 12 T。