Unit 3 A Healthy Life Period 4 using language Learning aims: 1. To learn some information about HIV/AIDS.2. To learn some important words and expressions.Important point: To grasp some important and us eful words, expressions and sentence patterns.Difficult point: To improve the skills of reading.使用说明及学法指导：1. 通过阅读课本 P 及查阅 unit 3 单词表和字典，完成预习案。2. 完成时间：20分钟。预习案 Previewing CaseTask 1 Read the text to find out the following phrases and words.1.引起疾病______________ 2. 流感病毒______________ 3.减弱/破坏人的免疫系统________________4.也就是说；即________________ 5.抵抗疾病___________________ 6.被称作 _____________________7.生存的几率__________________ 8.通过血液传播_________________ 9.被感染___________________10.治愈…的疗法_______________ 11.保持安全_________________ 12.与…分享_________________13. 冒着……的风险____________ 14.由于相同的原因______________ 15.没有…的证据____________Task 2 Choose the best answer.1. Where was the article most likely to come from_____.A.A letter B. An advertisement C. A textbook D. A TV show2. How does HIV spread?A．Through blood and other body fluid. B．Through hugging, touching or kissing.C．Through mosquitoes. D．Through visiting someone with AIDS.3．How many suggestions did the writer put forward to stay safe?A．Five. B．Six. C．Four. D．Three.4. If you have a meal with someone with AIDS, you will______.A. get HIV or AIDS B. be infected C. not get H IV or AIDS D. either be infected or not5．According to the writer，how should we act towards people with AIDS?A．Treat patients with AIDS in a scientific way. B．Look down upon patients with AIDS.C．Stay away from patients with AIDS. D．Do our best to avoid AIDS.Task 3 Read the text carefully and fill in the blanks.Part 1Information abou...
