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北师大2003课标版《Lesson 3 Epidemics Explained》新课标PPT课件优质课下载
Epidemics Explained 2nd period----- Debating and writing
At the end of this period ,
you will be able to:
1. Learn more about epidemics .
2. Practice speaking English by debating as much as possible.
3. Learn how to write a discursive essay(For and against essay).
Epidemics
throughout history
500—550AD Justinian Plague — up to 50% of the population were killed — the down fall of the Roman Empire
epidemic – consequences
500—550AD— 50% killed —the
Roman Empire, North Africa, the Middle East,
Europe
1930’s —50% lost to. Asia,
Europe, Africa, the Middle East
1918, , 50 million killed
18 months, Asia, Europe, Africa, the Middle East
2002— –9 months –8,000 –774 Asia,
Europe, Africa, the Middle East
1997— –more than 100 lives, Asia,
America– future ?
Justinian
The BlackDeath
Spanish Flu
Bird Flu