内容正文:
Unit 21
Unit 21 Human Biology
Lesson 3
Epidemics Explained
To get the main idea of the passage
about epidemics by skimming
To talk about the future of medicine
with the words and expressions
To get the specific information by
scanning
Expressions:
have faith in stop…in one’s track
Words:
cancer wipe urban
rebuild prohibit acute
statistics sympotom routine press adaptation foresee
underline
Do you know SARS?
What do you think people feel when SARS was spreading?
Besides SARS, what other diseases can be epidemic?
AIDS, flu, The smallpox (天花), TB (结核病), …
1. Look at the Key Words. Which of
these diseases can be epidemics?
Key Words:
AIDS, cancer, headache, flu, heart disease, stomachache
AIDS, flu
1) Flu kills millions of people every year.