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首页 > 教案下载 > 英语教案 > 高中英语教案 > 高二英语教案 > 高二英语 Unit 7 Live with disease 知识精讲教案

高二英语 Unit 7 Live with disease 知识精讲教案

发布时间:2019-03-30

高二英语 unit 7 live with disease 知识精讲教案
一. 本周教学内容
unit 7  live with disease
二. 教学目标
1. master some difficult phrases and sentence patterns.
2. subjunctive mood
3. practise supporting and chanllenging an opinion
三. 教学重点与难点
subjunctive mood
四. 具体内容
background information
1. the seven deadly diseases:
number 1 is heart disease. one in two persons has this disease now.
number 2 is cancer. though there is a lot of research on dealing with cancer, there still be 80 percent of those with cancer will die.
number 3 is stoke, mainly referring to cardiovascular disease. a stroke is the same basic disease as heart disease. with a heart attack it is the blood vessles going to your heart muscles; with a stroke it is the blood vessels going to your brain.
number 4 is diabetes. it has increased about 50% in the last decade. it is very diet related.
number 5 is osteoporsis.
number 6 is arthritis.
number 7 is alzheimer’s disease.
2. aids
(1)what is aids?
aids stands for acquired immune deficiency syndrome. it results form infection with a virus called hiv, with stands for human immunodeficiency virus. this virus infects key cells in the human body which are part of the body’s immune system, which fights infections and various cancers. 
hiv is transmitted through blood and other body liquids and spreads through unprotected sex, infected blood transfusions and through birth. medical studies show that the aids virus can not be transmitted via the following routes: cups, glasses, toilet seats, swimming pool, mosquitoes, other insects.
there is no cure for aids now, but medical treatment can slow down the rate at which hiv weakens the immune system. few people survive five years from the time they are diagnosed with aids.
five people worldwide die of aids every minute of every day. hiv has hit every corner of the globe, infecting more than 42 million men, women and children, 5 million of them last year alone.
this disease is spreading fast in areas where there is a lack of proper health care, prevention and education.
(2)something about world aids day
if it is the only thing you do for world aids day, wear the red ribbon on 1st december. it is the international symbol of hiv and aids awareness. by wearing it, you are showing your support for over 42 million people across the world who are living with the disease. we must learn to treat them properly and make their life more difficult.
 
language points
1. infect  传染;感染;传播病菌于
be infected with 感染上

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