Lesson3EpidemicsExplained.ppt

1、Unit 21 Lesson 3 Epidemics Explained,Do you remember SARS ?,Do you know what diseases can be epidemic?,SARS, AIDS, flu, Bird Flu, The smallpox (天花), TB (肺結(jié)核) , Hand-feet-Mouth Disease, ,Can you guess what the text is going to talk about?,Different kinds of epidemics throughout history.,Having killed

2、 up to 50 million people in 18 months,the Spanish Flu is believed to have been the most acute epidemic in history.,serious, severe,New Words,We all mourned those who had lost their lives in the earthquake.,felt extremely sad,New Words,Over nine months, the number of global cases passed 8,000 and 774

3、 people died. Although these statistics are much less impressive than those for the Spanish Flu,figures, data,New Words,Please put the missing paragraphs back into the text. Tips: 1.Read the text to get the general idea and see how it develops. 2.Follow the timeline. 3.Read the sentences before and

4、after the gaps.,Reading Strategies -reading for sequencing,Match the five paragraphs (A-E) with gaps 3, 5, 8, 10 and 12 in the text.,A B C D E,Paragraph 3 Paragraph 5 Paragraph 8 Paragraph 10 Paragraph 12,Fast Reading,1. Listen to the text. 2. Read the text carefully again and finish the table with

5、your partners.,Detailed Reading,50 % of the area population,one half of the population,In the 1330s,Bird Flu,500-550AD,50 million people,774,SARS,the Black Death,1918,worldwide,Voice Your Opinion,Epidemics develop fast, so what should we do to protect ourselves from picking up them?,To start with, s

6、cientists who studied _from the bodies of people who _ of the Spanish Flu in 1918. proved that Bird Flu is a modern _ of the same _. It is important to look at the spread of _ throughout history to discover the _ of epidemics. Then, this passage looked back several acute epidemics in history. At las

7、t, we need to work together as SARS proved how _ among _ can save life. So, we have to have_ that there will be _ in time to stop Bird Flu.,Summary,adaptation,causes and effects,died,teamwork,nations,faith,solutions,diseases,tissue,virus,Homework,1. A Required Exercise (必做） Write a composition about how to prevent epidemics. (about 100 words) 2. A Selective Exer