高中英语人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists图文课件ppt

这是一份高中英语人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists图文课件ppt，共23页。PPT课件主要包含了Lead in，Mask up，Cholera，Who ，How ，What ，Para1 ，Para 2 ，Para 4，Para 5 等内容，欢迎下载使用。
Learning bjectives
By the end f this class, students will get infrmatin abut hw Jhn Snw defeated chlera;summarize the stages f scientific research;talk abut the significance and cntributin f Jhn’s wrk
Are yu familiar with these situatins ?
Get vaccinated
Self-islatin
Psitive measures are taken t fight against Cvid-19.
Besides crnavirus, what ther kinds f epidemics(流行病) d yu knw?
lss f liquid (缺水)
severe vmiting (呕吐)
diarrhea (腹泻)
It begins in the stmach and a severe case can lead t death withut immediate treatment.
Pre-reading
Jhn Snw Defeats “King Chlera”
1. Wh was Jhn Snw? 2. What is King Chlera? 3. Hw did Jhn Snw defeat King Chlera?
Activity 1 Read fr the main idea and check predictins
Jhn Snw want t use his knwledge t slve clera.
He needed t prve the secnd thery was crrect.
Jhn began his study by marking n the map & the prcess.
He finally fund ut that dirty water was the cause f chlera.
Jhn Snw made great cntributins t mdern epidemilgy.
Activity 2 Read fr stages
analyze the results
ask a questin
cllect data
think f a methd
find a prblem
find supprting evidence
draw a cnclusin
Put the seven research stages in rder.
Activity 2 Find the seven stages in Para.2 & 3
Stage 1 find a prblem
cntradictry
t agree with r supprt an pinin, a thery, etc.
subscribe t
Stage 2 ask a questin
investigate
t carefully examine the facts r find ut the truth r hw it happened
Stage 3 think f a methd
Stage 4 cllect data
Stage 5 analyze the results
the water pump was t blame
Stage 6 find supprting evidence
Stage 7 draw a cnclusin
As a result f this evidence,...
Activity 3 Read fr detailed infrmatin in Para.1
What? It's ne f in the wrld, because it causes
What results?
the mst feared diseases
severe diarrhea, dehydratin
In the early 19th century
Millins f peple died frm the disease
and even death.
Activity 3 Read fr detailed infrmatin in Para.2 & 3
What kind f map is it?What des “-” mean?What des “PH” mean?Where is the pump?
Activity 3 Read fr detailed infrmatin in Para.2 & 3
chlera germs
Steps in the research
frm the pump
drinking water
Research methd
Activity 3 Read fr detailed infrmatin in Para.4 & 5
1. What caused the utbreak f chlera in Lndn? A. Bad air B. Water infected by raw waste C. Plluted air D. Water plluted by the air 2.Why was Jhn Snw called the father f mdern epidemilgy?
He helped peple knw hw t prevent chlera.He transfrmed the way scientists study diseases in use f map and statistics.
Activity 4 Grup discussin
What qualities and scientific spirits d they have in cmmn?
strng sense f scial respnsibility
knwledgeable
curage t face difficulties
critical thinking
questining mind
The Stry f Clera