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(共15张PPT)
Unit 9 Human Biology
Lesson 3 Epidemics Explained
教材分析
本课是第九单元第三课，围绕阅读语篇展开。文章介绍了epidemic的定义，成因，并着重追溯了六种流行病，最后得出各国需要携手合作的结论。
教学目标
在本课学习结束时，学生能够：
1. 阅读文章并谈论关于流行病的话题；
2. 基于总体理解做出猜测；
3. 梳理大体信息和特定信息；
4. 注意文章的组织结构。
教学重难点
【教学重点】
1. 学生能够阅读文章并谈论关于流行病的话题；
2. 学生能够在总体理解的基础上做出猜测；
3. 学生能够梳理大体信息和特定信息。
【教学难点】
引导学生注意文章的组织结构。
Reading
SARS (Severe Acute Respiratory Syndrome)
严重急性呼吸道综合症，惯称 “非典型肺炎”，简称“非典”，是可致命的传染病。
Ebola Virus Disease (EVD)
埃博拉病毒性疾病，是一种死亡率高的急性出血性传染病。
Do you know the following words and phrases after the preview
1.在短时间内____________ 2. 和...接触___________
3.将...分类_________________ 4. 一定数量的________________
5. 与sth相反____________ 6. 创造一个更美好的未来________________
7. 详细叙述__________ 8. 有记载/记录的 ___________
9. 度过/熬过困难时期___ 10.构成威胁_____________
11. 感染率 _________ 12.在...的过程中_____________________
13. 作为...的结果 ___________ 14.导致 ___________
15. 从...中康复过来 ____ 16. 查明/发现___________________
17. 提出/想出_________________ 18.在全球范围内_________________________
19. 媒体报道 _ 20.将…和…相提并论 __________________
within a short period of time
come into contact with
be classified as
a certain number of
as opposed to
creative a more positive future
go into detail
on record
in the course of
get through
pose a threat
infection rates
as a result of
result in
get over
get it
come up with
across the globe
press report
draw parallels between...and...
Pre-reading
What epidemics do you know about
COVID-19
COVID-19 is a new strain of coronavirus that has not been previously identified in humans. The COVID-19 is the cause of an outbreak of respiratory illness first detected in Wuhan, Hubei province, China.
SARS
Severe acute respiratory syndrome (SARS) is a viral respiratory illness that was recognized as a global threat in March 2003, after first appearing in Southern China in November 2002.
Ebola Virus Disease
Ebola Virus Disease (EVD) is a deadly disease with occasional outbreaks that occur mostly on the African continent. EVD most commonly affects people and nonhuman primates. It is caused by an infection with a group of viruses within the genus Ebola virus.
Reading
Name Period Places Death toll
Bird Flu ×
Epidemics in the Roman Empire
The Black Death ×
The Spanish Flu ×
SARS ×
EVD
Read the passage carefully. Complete the table about the epidemics mentioned. Then choose one disease to talk about with a partner.
since 1997
more than a hundred lives
500 — 550 CE
Rome
half the population
1330s
Asia and Europe
1918 — the end of World War I
50 million people
2002 — 2003
China, Canada, Vietnam and Singapore
2013-2016
West Africa
more than 11310 death
Reading
Read the passage again and find all the epidemics mentioned in the passage.
Epidemics
bird flu —— line 19
1918 Spanish Flu —— line 26
Black Death —— line 33
SARS —— line 43
Ebola Virus Disease —— line 53
短语动词(Phrasal Verbs)是由两三个单词组成的动词，可以是及物的(带宾语)，也可以是不及物的（不带宾语）。如：
I get up early even at the weekend.
I get over the difficulties in the task.
短语动词比较复杂，很多短语形式相似意思却不同，如：
take down, take over, take on
Exploring the rules
短语动词
Learn the key points.
有的短语动词中间可以插入名词，有的则不能。
Exploring the rules
短语动词
(1)可拆分的短语动词，如：
I forgot to turn off my computer when I left the office.
I forgot to turn my computer off when I left the office.
(2)不可拆分的短语动词，如：
I came across an interesting article in the newspaper.
I’m looking forward to spending time with my sister.
学习短语动词的困难在于：没有规则确定短语动词是及物或不及物，可拆分或不可拆分，必须逐一学习。
Exploring the rules
短语动词
verb examples
go away, around, with, without, against, under, over, for, in for, through, through with, off
get over, through, in, into, on, with, down, at, down with, out of, away from, along, along with
come along, with, over, into, out, out with, by, down with, on, across
Exploring the rules
Word Builder Phrasal Verbs (2) at into over up with through under up away
(The prepositions and adverbs may be used more than once.) go get come Choose prepositions or adverbs in the box to make phrasal verb with the three verbs in the Word Builder.
at, into, over, through, up, away
at, into, over, through, up, away
at, into, over, up with, under, up, away
Assignment
Search online in groups and find some information about epidemics in China or Asia. Report your information to the class.
Thank You !

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