北师大版（2019）选择性必修 第三册Unit 9 Human Biology lesson 3 epidemics explained 课件(共28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(共28张PPT) |  | |
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| 资源类型 | 教案 | ||
| 版本资源 | 北师大版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-04-04 21:00:30 | ||
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(共28张PPT)
UNIT 9 HUMAN BIOLOGY
Lesson 3 Epidemics Explained
—Reading Comprehension
CONTENTS
Pre-reading
I
While-reading
II
Post-reading
III
Sentences analysis
IV
By the end of this period, you will be able to:
read and talk about diseases;
make and confirm guesses based on a general understanding;
express and discuss ideas in a group setting;
search online for information and present findings to the class.
Pre-reading
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.
□ 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.
While-reading
Ⅰ. What does the passage mainly tell us
A．The history of epidemics.
B．How to prevent epidemics.
C．What an epidemic is.
D．The causes，influence and prevention of epidemics.
√
Activity 1 Fast-reading for basic information
Ⅱ. Match the main idea with each part.
Part 1 (Para.1) A．The ways to solve epidemics.
Part 2 (Para.2) B．The epidemics in history.
Part 3 (Paras.3－8) C．The criteria of judging an epidemic.
Part 4 (Para.9) D．The definition of an epidemic.
Ⅰ.Read Para.1 and do the following exercises.
1．Fill in the blanks.
An epidemic is the name given to an __________________ that rapidly spreads to _________________ people within a _____ period of time—usually _________ or less.
2．What may cause epidemics
They can be caused by a virus being carried into an area，or changes in the way people live.
infectious disease
a large number of
short
two weeks
Activity 2 Careful-reading for details
Ⅱ.Read Para.2 and do the following exercise.
Which of the following is TRUE about an epidemic
A．A large number of people must have died from it.
B．A rare disease which caused only few deaths can’t be called an epidemic.
C．A common cold isn’t usually seen as an epidemic.
D．Whether a disease can be classified as an epidemic depends on its spreading speed.
√
Ⅲ.Read Paras.3－8 and do the following exercises.
1．Why do people fear bird flu could be the next global epidemic
A．Because bird flu has caused thousands of deaths.
B．Because bird flu has influenced countries all over the world.
C．Because scientists have proved it after studying tissue samples.
D．Because people have found the links between bird flu and the 1918 Spanish Flu.
√
2．What is the similarity between “The Black Death” and the Great Flu Epidemic
A．They both lasted about one year and a half.
B．They both caused more than 50 million deaths.
C．They had similar visible symptoms.
D．They both had a terrible effect on Europe.
3．Which is TRUE about the Spanish Flu
A．It led to the end of World War Ⅰ.
B．It was spread quickly because of the war.
C．It isn’t a threat since 1918 any longer.
D．It is an adaptation of bird flu.
√
√
4．What can we infer from paragraph 7 and paragraph 8
A．Scientists found out the cause of SARS soon after its outbreak.
B．More than 8,000 people died of SARS in 9 months.
C．Once a person got infected by EVD，his chance of survival was slim.
D．EVD has caused 11,310 deaths exactly since 2013.
√
5．Read the passage carefully. Complete the table about the epidemics mentioned.
Name Period Places Death toll
Bird Flu ×
Epidemics in the Roman Empire
The Black Death ×
The Spanish Flu ×
SARS ×
EVD
Name Period Places Death toll
Bird Flu ×
Epidemics in the Roman Empire
The Black Death ×
The Spanish Flu ×
SARS ×
EVD
since 1997
more than a hundred lives
500-550 CE
Rome
half the population
1330s
Asia and Europe
1918—the end of WWⅠ
2002-2003
China, Canada, Vietnam and Singapore
50 million people
2013-2016
West Africa
more than
11,310 death
Ⅳ.Read Para.9 and do the following exercises.
1．What should different countries do to prevent outbreaks of epidemics in the future Why
They should work together because teamwork among nations across the globe can save lives.
2．Which word has similar meaning to the word “underline” in the last paragraph
A．Highlight. B．Explain.
C．Mark. D．Describe.
√
Ⅴ.Read the whole passage again and do the following exercises.
1．Where are you most likely to find this passage
A．In a newspaper.
B．In a magazine.
C．In a biology textbook.
D．On a science website.
2．What is the author’s attitude towards man’s struggle against epidemics
A．Positive. B．Doubtful.
C．Critical. D．Uninterested.
√
√
3．What will the author write next
A．How to do systematic medical research on epidemics.
B．How to cooperate to find the cures.
C．Other epidemics in the world.
D．Solutions to epidemics.
√
a. citing ideas from experts or authorities
b. giving examples
c. using data
d. giving definition
e. using comparison and contrast
4．What methods does the author use to develop the passage
Post-reading
1．What does the title mean to you What does the writer want to convey in the passage (Creative thinking)
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.
Activity 1 Discussion
2．Can we call a disease an epidemic as long as it affects a large number of people？(Critical thinking)
No.Only if an infectious disease has caused a certain number of deaths can it be called an epidemic.
An epidemic is the rapid spread of an 1.__________(infect) disease over a short period of time,2._______(cause) a large number of deaths，the number of which differs for different diseases.
infectious
causing
Activity 2 Summary
Professor Jim Smith studied the history of epidemics 3._________(create) a more positive future.One of the 4.________(early) epidemics on record took place in Rome as early as 500 to 550 CE,5._____ killed half of the population in that particular area.The same epidemic called “The Black Death” returned in 6.____ 1330s in Asia and spread quickly to Europe.Some hundred years later，the Great Flu Epidemic broke 7.___ in 1918，also known as the Spanish Flu，killing 50 million people.This was considered the most severe epidemic in human history.The 1997 bird flu which claimed over 100 lives was an 8.__________(adapt) of the Great Flu of 1918.
to create
earliest
which
the
out
adaptation
At the start of the 21st century there were two major epidemics—SARS and EVD.The more recently 9.__________(discover) SARS disease infected about 8,000 people.According to official records EVD has killed more than 11,310 people in West Africa alone.
10．________(global)，researchers are coming together to try to identify the causes and help to find effective treatments for epidemics.
discovered
Globally
Sentences analysis
1．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.
[句式分析] 此句是____句。given to an infectious disease是过去分词短语作____，修饰the name，并与之构成____关系；that引导____从句，修饰________，其中that在从句中作____。
[自主翻译]
复合
定语
被动
定语
disease
主语
流行病是指在短时间内(通常两周或更短)迅速在大量
人群中传播的传染性疾病。
2．With recent press reports drawing parallels between bird flu and killer epidemics of the past，Jim Smith looks at the sometimes depressing history of epidemics for clues about how we can create a more positive future without epidemics.
[句式分析] 此句是____句。With...of the past 为with的复合结构作____，其中宾语press reports和宾补drawing parallels...构成_____关系；how we can...为____从句。
[自主翻译]
复合
状语
主动
宾语
最近有新闻报道，吉姆·史密斯将禽流感和过去致命
的流行病作对比，在屡屡令人感到沮丧的流行病史中寻找线索，从而创造一个远离流行病的美好未来。
3．Many people fear it could be the next global epidemic, especially as scientists who have gone into detail studying tissue samples from the bodies of people who died of the 1918 Spanish Flu have proved that bird flu is a modern adaptation of that virus.
[句式分析] 此句是____句。Many people fear后是省略了that的____从句；as引导的是____状语从句，译作“______________”；两个who引导的都是____从句，分别修饰scientists和people；proved 之后的that引导____从句。
[自主翻译]
复合
宾语
时间
当……的时候
定语
宾语
科学家们仔细研究了1918年西班牙流感死亡者尸体的
组织样本，证明禽流感是该病毒的现代变异版本，许多人担心它可能会引起下一场全球流行病。
4．Despite，or perhaps because of，the epidemics the world has faced in recent years，governments worldwide have underlined the fact that they want thorough and systematic medical research on epidemics to get at the causes and come up with cures as soon as possible.
[句式分析] 此句是____句。Despite，or perhaps...in recent years作____，其中the world has faced in recent years是____从句，修饰the epidemics；the fact之后的that 引导______从句。
[自主翻译]
复合
状语
定语
同位语
尽管(或者是因为)近年来全球爆发了流行病，世界各国
政府都已经强调，要对流行病进行彻底和系统的医学研究，以便尽快找出原因并找到治疗方法。
Search online and find some information about epidemics in the world.
Homework
UNIT 9 HUMAN BIOLOGY
Lesson 3 Epidemics Explained
—Reading Comprehension
CONTENTS
Pre-reading
I
While-reading
II
Post-reading
III
Sentences analysis
IV
By the end of this period, you will be able to:
read and talk about diseases;
make and confirm guesses based on a general understanding;
express and discuss ideas in a group setting;
search online for information and present findings to the class.
Pre-reading
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.
□ 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.
While-reading
Ⅰ. What does the passage mainly tell us
A．The history of epidemics.
B．How to prevent epidemics.
C．What an epidemic is.
D．The causes，influence and prevention of epidemics.
√
Activity 1 Fast-reading for basic information
Ⅱ. Match the main idea with each part.
Part 1 (Para.1) A．The ways to solve epidemics.
Part 2 (Para.2) B．The epidemics in history.
Part 3 (Paras.3－8) C．The criteria of judging an epidemic.
Part 4 (Para.9) D．The definition of an epidemic.
Ⅰ.Read Para.1 and do the following exercises.
1．Fill in the blanks.
An epidemic is the name given to an __________________ that rapidly spreads to _________________ people within a _____ period of time—usually _________ or less.
2．What may cause epidemics
They can be caused by a virus being carried into an area，or changes in the way people live.
infectious disease
a large number of
short
two weeks
Activity 2 Careful-reading for details
Ⅱ.Read Para.2 and do the following exercise.
Which of the following is TRUE about an epidemic
A．A large number of people must have died from it.
B．A rare disease which caused only few deaths can’t be called an epidemic.
C．A common cold isn’t usually seen as an epidemic.
D．Whether a disease can be classified as an epidemic depends on its spreading speed.
√
Ⅲ.Read Paras.3－8 and do the following exercises.
1．Why do people fear bird flu could be the next global epidemic
A．Because bird flu has caused thousands of deaths.
B．Because bird flu has influenced countries all over the world.
C．Because scientists have proved it after studying tissue samples.
D．Because people have found the links between bird flu and the 1918 Spanish Flu.
√
2．What is the similarity between “The Black Death” and the Great Flu Epidemic
A．They both lasted about one year and a half.
B．They both caused more than 50 million deaths.
C．They had similar visible symptoms.
D．They both had a terrible effect on Europe.
3．Which is TRUE about the Spanish Flu
A．It led to the end of World War Ⅰ.
B．It was spread quickly because of the war.
C．It isn’t a threat since 1918 any longer.
D．It is an adaptation of bird flu.
√
√
4．What can we infer from paragraph 7 and paragraph 8
A．Scientists found out the cause of SARS soon after its outbreak.
B．More than 8,000 people died of SARS in 9 months.
C．Once a person got infected by EVD，his chance of survival was slim.
D．EVD has caused 11,310 deaths exactly since 2013.
√
5．Read the passage carefully. Complete the table about the epidemics mentioned.
Name Period Places Death toll
Bird Flu ×
Epidemics in the Roman Empire
The Black Death ×
The Spanish Flu ×
SARS ×
EVD
Name Period Places Death toll
Bird Flu ×
Epidemics in the Roman Empire
The Black Death ×
The Spanish Flu ×
SARS ×
EVD
since 1997
more than a hundred lives
500-550 CE
Rome
half the population
1330s
Asia and Europe
1918—the end of WWⅠ
2002-2003
China, Canada, Vietnam and Singapore
50 million people
2013-2016
West Africa
more than
11,310 death
Ⅳ.Read Para.9 and do the following exercises.
1．What should different countries do to prevent outbreaks of epidemics in the future Why
They should work together because teamwork among nations across the globe can save lives.
2．Which word has similar meaning to the word “underline” in the last paragraph
A．Highlight. B．Explain.
C．Mark. D．Describe.
√
Ⅴ.Read the whole passage again and do the following exercises.
1．Where are you most likely to find this passage
A．In a newspaper.
B．In a magazine.
C．In a biology textbook.
D．On a science website.
2．What is the author’s attitude towards man’s struggle against epidemics
A．Positive. B．Doubtful.
C．Critical. D．Uninterested.
√
√
3．What will the author write next
A．How to do systematic medical research on epidemics.
B．How to cooperate to find the cures.
C．Other epidemics in the world.
D．Solutions to epidemics.
√
a. citing ideas from experts or authorities
b. giving examples
c. using data
d. giving definition
e. using comparison and contrast
4．What methods does the author use to develop the passage
Post-reading
1．What does the title mean to you What does the writer want to convey in the passage (Creative thinking)
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.
Activity 1 Discussion
2．Can we call a disease an epidemic as long as it affects a large number of people？(Critical thinking)
No.Only if an infectious disease has caused a certain number of deaths can it be called an epidemic.
An epidemic is the rapid spread of an 1.__________(infect) disease over a short period of time,2._______(cause) a large number of deaths，the number of which differs for different diseases.
infectious
causing
Activity 2 Summary
Professor Jim Smith studied the history of epidemics 3._________(create) a more positive future.One of the 4.________(early) epidemics on record took place in Rome as early as 500 to 550 CE,5._____ killed half of the population in that particular area.The same epidemic called “The Black Death” returned in 6.____ 1330s in Asia and spread quickly to Europe.Some hundred years later，the Great Flu Epidemic broke 7.___ in 1918，also known as the Spanish Flu，killing 50 million people.This was considered the most severe epidemic in human history.The 1997 bird flu which claimed over 100 lives was an 8.__________(adapt) of the Great Flu of 1918.
to create
earliest
which
the
out
adaptation
At the start of the 21st century there were two major epidemics—SARS and EVD.The more recently 9.__________(discover) SARS disease infected about 8,000 people.According to official records EVD has killed more than 11,310 people in West Africa alone.
10．________(global)，researchers are coming together to try to identify the causes and help to find effective treatments for epidemics.
discovered
Globally
Sentences analysis
1．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.
[句式分析] 此句是____句。given to an infectious disease是过去分词短语作____，修饰the name，并与之构成____关系；that引导____从句，修饰________，其中that在从句中作____。
[自主翻译]
复合
定语
被动
定语
disease
主语
流行病是指在短时间内(通常两周或更短)迅速在大量
人群中传播的传染性疾病。
2．With recent press reports drawing parallels between bird flu and killer epidemics of the past，Jim Smith looks at the sometimes depressing history of epidemics for clues about how we can create a more positive future without epidemics.
[句式分析] 此句是____句。With...of the past 为with的复合结构作____，其中宾语press reports和宾补drawing parallels...构成_____关系；how we can...为____从句。
[自主翻译]
复合
状语
主动
宾语
最近有新闻报道，吉姆·史密斯将禽流感和过去致命
的流行病作对比，在屡屡令人感到沮丧的流行病史中寻找线索，从而创造一个远离流行病的美好未来。
3．Many people fear it could be the next global epidemic, especially as scientists who have gone into detail studying tissue samples from the bodies of people who died of the 1918 Spanish Flu have proved that bird flu is a modern adaptation of that virus.
[句式分析] 此句是____句。Many people fear后是省略了that的____从句；as引导的是____状语从句，译作“______________”；两个who引导的都是____从句，分别修饰scientists和people；proved 之后的that引导____从句。
[自主翻译]
复合
宾语
时间
当……的时候
定语
宾语
科学家们仔细研究了1918年西班牙流感死亡者尸体的
组织样本，证明禽流感是该病毒的现代变异版本，许多人担心它可能会引起下一场全球流行病。
4．Despite，or perhaps because of，the epidemics the world has faced in recent years，governments worldwide have underlined the fact that they want thorough and systematic medical research on epidemics to get at the causes and come up with cures as soon as possible.
[句式分析] 此句是____句。Despite，or perhaps...in recent years作____，其中the world has faced in recent years是____从句，修饰the epidemics；the fact之后的that 引导______从句。
[自主翻译]
复合
状语
定语
同位语
尽管(或者是因为)近年来全球爆发了流行病，世界各国
政府都已经强调，要对流行病进行彻底和系统的医学研究，以便尽快找出原因并找到治疗方法。
Search online and find some information about epidemics in the world.
Homework