2020-2021学年Unit 1 Science and Scientists备课课件ppt

这是一份2020-2021学年Unit 1 Science and Scientists备课课件ppt，共36页。PPT课件主要包含了Lead in，Who is he，Keys，John Snow，keys，出席人数等内容，欢迎下载使用。
1. Enable the Ss t get t knw sme knwledge abut Chlera. 2. Enable the Ss t understand the passage well.3. Let the Ss learn sme reading skills by scanning and skimming. 4.T learn frm the great scientists and develp the nble spirits .
Teaching Gals
 Name sme famus scientists yu knw and tell smething abut them.
Archimedes (阿基米德)
Which scientist discvered that bjects in water are lifted up by a frce that helps them flat?
Charles Darwin.
Wh wrte a bk explaining hw animals and plants develped as the envirnment changed?
Wh invented the way f giving electricity t everybdy in large cities?
Wh put frward a thery abut black hles?
(1813-1858)
Jhn Snw was brn in Yrk n March 15th, 1813, the ldest f nine children.
D yu knw him?
Jhn Snw Defeats “King Chlera”
 Lk at the picture, the title and the map, guess what the cntent f the text is. Then skim it quickly t see if yu are right.
Pre-reading
The text is mainly abut ____________ and _______ he defeated king chlera.
 Read it quickly and find ut what rder wuld yu put the seven stages in?_____analyze the results _____ask a questin_____ Draw a cnclusin _____ cllect data _____ Find a prblem _____ Think f a methd_____ find supprting evidence
Activity 1:
draw a cnclusin
think f a methd
cllect data
ask a questin
find a prblem
analyze the results
Find supprting evidence
7 stages in right rder
Activity 2:
Read the text and find ut the answers t the fllwing questins.1. What’s the purpse f the text?2. What inspired Jhn Snw accrding t the first paragraph?3. What’s the use f Jhn Snw’s map in his research?4. Hw did Jhn Snw feel abut the cause f chlera after he finished the map?5. Why was chlera called “King Chlera” in the text?
Read the text and find ut the answers t the fllwing questins.1. What’s the purpse f the text? T tell us hw Jhn Snw fund the cause f chlera and the cure fr it.2. What inspired Jhn Snw accrding t the first paragraph? T destry Chlera nce and fr all.3. What’s the use f Jhn Snw’s map in his research? T help him find the reasn f the chlera utbreak.
Read the text and find ut the answers t the fllwing questins.4. Hw did Jhn Snw feel abut the cause f chlera after he finished the map?Unsure5. Why was chlera called “King Chlera” in the text? Because chlera was the mst deadly disease f its day.
What’s the cause f chlera?
What is the prblem?Chlera was ne f the mst feared disease f its day. Nbdy knew hw t prevent r treat Chlera.
Activity 3:
Finding the supprting details
Ask a questin: tw cntradictry theries
1. bad air caused it.
2. It was caused by an infectin frm the germs in fd r water.
Brad Street
Many deaths happened here.
N death happened here.
The water frm the pump was t blame.
Public huse
The water was frm the river which had been plluted by the dirty water frm Lndn.
Find supprting evidence: What extra evidence did he find?
A wman and her daughter wh lived far away but drank the water als died.
Draw a cnclusin with certainty
The plluted water carried the virus.
Read the text carefully and fill in the blanks.
Many peple died f chlera.
Jhn Snw tried t find ut its _____ and ____
Peple drank water frm the pump in ______ Street.
Multiple deaths.
Activity 4:Further Cmprehending
Families were given free beer in the pub at __________ Street.
Peple remved the ______ frm the water pump.
Peple had n ________
The disease __________
was stpped in its tracks.
_______ water carried the disease.
Thery 2 Chlera was caused by _______ ____ And thery 1 was wrng.
________ the surce f all the water supplies.
an infectin
Grup Discussin
1. Jhn Snw believed Idea 2 was right. Hw did he finally prve it? Jhn Snw finally prved his idea because he fund an utbreak that was clearly related t chlera, cllected infrmatin and was able t tie cases utside the area t the plluted water.
2. D yu think Jhn Snw wuld have slved this prblem withut the map? N. The map helped Jhn Snw rganize his ideas. He was able t identify thse husehlds that had had many deaths and check their water-drinking habits. He identified thse huses that had had n deaths and surveyed their drinking habits. The evidence clearly pinted t the plluted water being the cause.
3. Chlera is a 19th century disease. What disease d yu think is similar t chlera tday?SARS and Cvid-19 because they are bth deadly and fatally infectius, have an unknwn cause and need serius public health care t slve them urgently.
Jhn Snw was a well-knwn ____ in Lndn in the ___ century. He wanted t find the ______ f chlera in rder t help peple ________ it. In 1854 when a chlera ____ Lndn, he began t gather infrmatin. He _____ n a map ______ all the dead peple had lived and he fund that many peple wh had _______ (drink) the dirty water frm the ______ died. S he decided that the plluted water _______ chlera. He suggested that the _____ f all water supplies shuld be _______ and new methds f dealing with _______ water be fund. Finally, “King Chlera” was _______.
Cnslidatin: fill in the blanks based n the text.
Retell the passage accrding t belw: Jhn Snw was a well-knwn ________ in Lndn in the ___ century. He wanted t find the ______ f chlera in rder t help peple __________ it. In 1854 when a chler ____ Lndn, he began t gather infrmatin. He _______ n a map ______ all the dead peple had lived and he fund that many peple wh had _______ (drink) the dirty water frm the ______ died. S he decided that the plluted water _______ chlera. He suggested that the _____ f all water supplies shuld be _______ and new methds f dealing with _______ water be fund. Finally, “King Chlera” was _______.
Infected with
1….he even attended t Queen Victria when she gave birth.
1) t be present at, t g t 出席, 参加~a meeting , ~a ceremny, ~a funeral, ~ a lecture, ~schl, ~churchE.g. Yur attendance (n.) at the meeting will be welcme.2) t lk after, care fr, serve照顾，看护Which dctr is attending (t/ n) yu?There is a dctr in attendance n me.
Language pints
4）attendance n.
e.g There is a dctr in attendance.umber f peple present 出席人e.g There was a large attendance at the cncert. 音乐会听众很多.
3) t g with 伴随 The wrk was attended with much difficulty.
2. …the chlera utbreak was s severe that mre than 500 peple died in ten days.
(1) s serius; s bad (人、纪律）严厉的， 严格的
I think yu are t severe n the by.
His severe lks frightened me.
(2) very harmful r painful (疼痛）剧烈的
He has a severe pain in his leg.
(3)be severe with: be strict with 对…要求严格
He is severe with himself.
3. Jhn Snw suspected that the water pump was t blame.
~ sb. fr … ~ …upn / n…：把…责任归于…She ~d the failure f their marriage n him.be t blame该受责备；应该负责 (不能用于被动语态)I am t blame fr ur lsing the game. It’s I wh am t ~ fr ur lsing the game.