北师大版（2019） 选择性必修第三册 Unit 9 Human Biology Lesson 3 Epidemics Explained 课件(23张ppt)
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| 名称 | 北师大版（2019） 选择性必修第三册 Unit 9 Human Biology Lesson 3 Epidemics Explained 课件(23张ppt) |  | |
| 格式 | pptx | ||
| 文件大小 | 1.1MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 北师大版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2022-09-26 22:26:30 | ||
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(共23张PPT)
Unit 9 Human Biology
Lesson 3
Epidemics Explained
Pre-reading
I
Post-reading
IV
Fast Reading
II
Language and Grammar
V
III
Intensive Reading
Ⅵ
Homework
outline
Ⅰ
Pre-reading
Pre-reading
What epidemics do you know about
What do you know about epidemics Tick ( ) the statements that you think are correct.
An epidemic is the rapid spread of an infectious disease.
An epidemic can affect a large number of people in a given population.
An epidemic can occur within a short period of time, usually two weeks or less.
Pre-reading
What do you know about epidemics Tick ( ) the statements that you think are correct.
An epidemic may spread to several countries or continents.
Some common viruses, such as the common cold, are not epidemics.
A new epidemic can be a different variation of a virus that people caught in the past.
Pre-reading
Ⅱ
Fast Reading
Fast-reading
Read the passage and answer the following questions…
1. What is an epidemic
2. How can a disease be classified as an epidemic
An epidemic is the name given to an infectious disease that rapidly spreads to a large number of people within a short period of time—usually two weeks or less.
Each disease can only officially be classified as an epidemic once a certain number of deaths have occurred from the disease.
Fast-reading
Bird Flu
1918 Spanish Flu
Black Death
SARS
Ebola Virus Disease
Read and circle all the epidemics mentioned in the passage.
Ⅲ
Intensive Reading
Intensive reading
Name Period Places Death toll
Bird Flu ×
Epidemics in the Roman Empire
The Black Death ×
Complete the table about the epidemics mentioned.
since 1997
500–550 CE
1330s
Rome
Asia and Europe
more than a hundred lives
half the population
Intensive reading
Name Period Areas Death toll
The Spanish Flu ×
SARS ×
Complete the table about the epidemics mentioned.
1918–the end of World War Ⅰ
2002–2003
China, Canada, Vietnam and Singapore
50 million people
Intensive reading
Name Period Areas Death toll
EVD
Complete the table about the epidemics mentioned.
2013–2016
West Africa
more than 11,310 death
Intensive reading
when epidemic started
examples of epidemics
treatments
baseline number of deaths of epidemics
Tick the aspects that mentioned in the passage. Use a diagram to demonstrate in a logical way how they are organised.
definition
when it ended
possible causes of epidemics
possible solutions
Intensive reading
when it ended
Epidemics
when epidemic started
examples of epidemics
what
definition
How to classify
baseline number of deaths of epidemics
Ⅳ
Post-reading
Post-reading
1. What are the main features of an epidemic Give at least two examples to illustrate your points.
2. What should different countries do to prevent outbreaks of epidemics in the future Why
3. What does the title mean to you What does the writer want to convey in the passage
4. What do you think the passage is written for
Discuss the questions.
Post-reading
1. What are the main features of an epidemic Give at least two examples to illustrate your points.
Discuss the questions.
The main features of an epidemic: (1) it is an infectious disease (2) it spreads rapidly to a large number of people within a short period of time (3) a certain number of deaths have occurred from the disease. The common cold is not an epidemic because while it affects many people, it does not cause deaths. SARS affected many people and caused many deaths, so it is considered an epidemic.
Post-reading
2. What should different countries do to prevent outbreaks of epidemics in the future Why
Discuss the questions.
Countries will need to work together to do this because teamwork among nations across the globe can save lives. This is a good example of building a community with shared future for mankind.
Post-reading
3. What does the title mean to you What does the writer want to convey in the passage
Discuss the questions.
The title means that the passage will explain questions about epidemics. The author wants to convey the information that we are always on our way to find an explanation to epidemics so as to find cure. It also implies that epidemics occurred naturally and inevitably. We can only explain it, and cannot prevent it or stop it completely now.
Post-reading
4. What do you think the passage is written for
Discuss the questions.
This is a popular science article. It is more likely to be written for people who are interested in this topic or who have a lot of questions or misunderstanding of epidemics.
VI
Homework
Homework
Search online and find some information about epidemics in China of Asia. Report your information to the class.
Unit 9 Human Biology
Lesson 3
Epidemics Explained
Pre-reading
I
Post-reading
IV
Fast Reading
II
Language and Grammar
V
III
Intensive Reading
Ⅵ
Homework
outline
Ⅰ
Pre-reading
Pre-reading
What epidemics do you know about
What do you know about epidemics Tick ( ) the statements that you think are correct.
An epidemic is the rapid spread of an infectious disease.
An epidemic can affect a large number of people in a given population.
An epidemic can occur within a short period of time, usually two weeks or less.
Pre-reading
What do you know about epidemics Tick ( ) the statements that you think are correct.
An epidemic may spread to several countries or continents.
Some common viruses, such as the common cold, are not epidemics.
A new epidemic can be a different variation of a virus that people caught in the past.
Pre-reading
Ⅱ
Fast Reading
Fast-reading
Read the passage and answer the following questions…
1. What is an epidemic
2. How can a disease be classified as an epidemic
An epidemic is the name given to an infectious disease that rapidly spreads to a large number of people within a short period of time—usually two weeks or less.
Each disease can only officially be classified as an epidemic once a certain number of deaths have occurred from the disease.
Fast-reading
Bird Flu
1918 Spanish Flu
Black Death
SARS
Ebola Virus Disease
Read and circle all the epidemics mentioned in the passage.
Ⅲ
Intensive Reading
Intensive reading
Name Period Places Death toll
Bird Flu ×
Epidemics in the Roman Empire
The Black Death ×
Complete the table about the epidemics mentioned.
since 1997
500–550 CE
1330s
Rome
Asia and Europe
more than a hundred lives
half the population
Intensive reading
Name Period Areas Death toll
The Spanish Flu ×
SARS ×
Complete the table about the epidemics mentioned.
1918–the end of World War Ⅰ
2002–2003
China, Canada, Vietnam and Singapore
50 million people
Intensive reading
Name Period Areas Death toll
EVD
Complete the table about the epidemics mentioned.
2013–2016
West Africa
more than 11,310 death
Intensive reading
when epidemic started
examples of epidemics
treatments
baseline number of deaths of epidemics
Tick the aspects that mentioned in the passage. Use a diagram to demonstrate in a logical way how they are organised.
definition
when it ended
possible causes of epidemics
possible solutions
Intensive reading
when it ended
Epidemics
when epidemic started
examples of epidemics
what
definition
How to classify
baseline number of deaths of epidemics
Ⅳ
Post-reading
Post-reading
1. What are the main features of an epidemic Give at least two examples to illustrate your points.
2. What should different countries do to prevent outbreaks of epidemics in the future Why
3. What does the title mean to you What does the writer want to convey in the passage
4. What do you think the passage is written for
Discuss the questions.
Post-reading
1. What are the main features of an epidemic Give at least two examples to illustrate your points.
Discuss the questions.
The main features of an epidemic: (1) it is an infectious disease (2) it spreads rapidly to a large number of people within a short period of time (3) a certain number of deaths have occurred from the disease. The common cold is not an epidemic because while it affects many people, it does not cause deaths. SARS affected many people and caused many deaths, so it is considered an epidemic.
Post-reading
2. What should different countries do to prevent outbreaks of epidemics in the future Why
Discuss the questions.
Countries will need to work together to do this because teamwork among nations across the globe can save lives. This is a good example of building a community with shared future for mankind.
Post-reading
3. What does the title mean to you What does the writer want to convey in the passage
Discuss the questions.
The title means that the passage will explain questions about epidemics. The author wants to convey the information that we are always on our way to find an explanation to epidemics so as to find cure. It also implies that epidemics occurred naturally and inevitably. We can only explain it, and cannot prevent it or stop it completely now.
Post-reading
4. What do you think the passage is written for
Discuss the questions.
This is a popular science article. It is more likely to be written for people who are interested in this topic or who have a lot of questions or misunderstanding of epidemics.
VI
Homework
Homework
Search online and find some information about epidemics in China of Asia. Report your information to the class.