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高中英语人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists教案
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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教案，共5页。
The theme f this sectin is "understanding the questining mind". By guiding students t analyze Jhn Snw's prcess and methds f explring the surce f chlera, cutting ff the surce f infectin, and finally preventing the epidemic f chlera, the textbk urges them t think abut and srt ut the basic steps and cmmn methds f scientific research, and understand the imprtant rle f questining spirit in scientific research.
This paper is a narrative text that describes the develpment prcess f events in chrnlgical rder.
The steps f scientific research are the hidden clue f the article.
The first paragraph intrduces the backgrund f the research. The secnd paragraph is the first stage f scientific research, that is, raising the questin: there were tw views n the surce f chlera at that time. The fllwing third paragraph describes the research prcess adpted by Snw: cllecting data, analyzing results, finding further evidence, and finally reaching a cnclusin. Snw came up with a scientific and effective way t map chlera cases. He marked the residences f all the patients wh died f chlera n the map, s that the residences with high mrtality culd be seen bviusly. Snw fund that residents f zer death hmes did nt have water frm a pump because they received free beer. As a result, snw suspected that the pump was the prblem. Supprted by anther case, snw cncluded that the water in the pump carried chlera bacteria. He immediately had the pump handle remved, cutting ff the transmissin f chlera. The furth paragraph reveals the truth abut the spread f chlera. It has been prved that the water in Brad Street is plluted by waste, and peple wh drink such water will greatly increase the prbability f getting sick. The last paragraph describes Snw's cntributin t the cntrl f chlera transmissin.
Thanks t snw's tireless effrts, peple began t drink clean water, and the threat f chlera was significantly reduced wrldwide. His research results and research methds are als f practical significance t the preventin f chlera tday, and "chlera map" has becme a classic case f epidemilgical research, s snw has wn the reputatin f "father f epidemilgy".
Leading students t read abut hw Jhn Snw defeated “King Chlera”
Guiding students t analyze Jhn Snw's scientific prcess and methds f defeating the epidemic f chlera
Instructing stuendents t figure ut the basic scientific research steps, and understand the imprtant rle f questining spirit in scientific research.
Instructing students t understand the imprtant rle f questining spirit in scientific research.
Encuraging students t slve the reading tasks by thinking lgically and cperating with peers.
1.Enable students t wrk ut the stages f scientific research.
2.Cultivate students t frm the spirits f raising new questins.
Lead in
Name sme famus scientists yu knw and share sme details abut them. The teacher can shw sme sme pictures abut sme famus scientists with the help f the multimedia. If it is t difficult, the teacher can inspire students by asking sme questins. Take Charles Darwin fr example, the teacher can shw a picture abut him and then ask a questin:Wh wrte a bk explaining hw animals and plants develped as the envirnment changed?
Pre-reading:
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.
key: The text is mainly abut Jhn Snw and hw he defeated king chlera.
Step 1: Read the text 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
Key: 1. find a prblem 2. ask a questin 3. think f a methd 4. cllect data 5. analyze the results 6. find supprting evidence 7. draw a cnclusin
Step 2: Read the text quickly 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?
keys:
1. T tell us hw Jhn Snw fund the cause f chlera and the cure fr it.
2. T destry Chlera nce and fr all.
3. T help him find the reasn f the chlera utbreak by marking the residences f all the patients.
4. Unsure; he suspected that the water pump was t blame. Thus, he needed mre supprting prf.
5. Because chlera was the mst deadly disease f its day.
Step 3： Read the passage again and cmplete the chart belw.
At was believed that chlera was caused by bad _1___r germs in___2__________（A）
Snw __3______the places where the peple wh _4___had lived.(B)
Many deaths ccurred near the ____5_______in Brad Street.
Sme peple _6__drunk the water frm the pump, and lived.
A wman and her daughter died in anther part f Lndn after__7_.
(C)
The __9__f the pump was remved.(E)
The pump water carried _____8___(D)
keys: 1. air 2. fd r water 3. marked 4. died 5.water pump 6. had nt 7. mving away frm Brad Street 8. chlera germs 9. handle.
Step 4：Match the fllwing headers with the letters frm the chart abve. write A---E in the blanks.
cnclusin____________
evidence _____________
prcess_____________
slutin _____________
theries_____________
keys: 1—5: DCBEA
Step 5： After learning the text, discuss with yur peers abut the fllwing questins:
1.Jhn Snw believed Idea 2 was right. Hw did he finally prve it?
2. D yu think Jhn Snw wuld have slved this prblem withut the map?
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.
keys:
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.
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.
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.
Step 6: Cnslidate what yu have learned by filling in the blanks:
Jhn Snw was a well-knwn _1___ in Lndn in the _2__ century. He wanted t find the _3_____ f chlera in rder t help peple ___4_____ it. In 1854 when a chlera __5__ Lndn, he began t gather infrmatin. He ___6__ n a map ___7___ all the dead peple had lived and he fund that many peple wh had ___8____ (drink) the dirty water frm the __9____ died. S he decided that the plluted water ___10____ chlera. He suggested that the ___11__ f all water supplies shuld be _12______ and new methds f dealing with ____13___ water be fund. Finally, “King Chlera” was __14_____.
Keys: 1. dctr 2. 19th 3.cause 4.infected with 5.hit 6.marked 7.where 8.drunk
9.pump 10.carried 11.surce 12.examined 13.plluted 14.defeated
Hmewrk: Retell the text after class and preview its language pints.
The theme f this sectin is "understanding the questining mind". By guiding students t analyze Jhn Snw's prcess and methds f explring the surce f chlera, cutting ff the surce f infectin, and finally preventing the epidemic f chlera, the textbk urges them t think abut and srt ut the basic steps and cmmn methds f scientific research, and understand the imprtant rle f questining spirit in scientific research.
This paper is a narrative text that describes the develpment prcess f events in chrnlgical rder.
The steps f scientific research are the hidden clue f the article.
The first paragraph intrduces the backgrund f the research. The secnd paragraph is the first stage f scientific research, that is, raising the questin: there were tw views n the surce f chlera at that time. The fllwing third paragraph describes the research prcess adpted by Snw: cllecting data, analyzing results, finding further evidence, and finally reaching a cnclusin. Snw came up with a scientific and effective way t map chlera cases. He marked the residences f all the patients wh died f chlera n the map, s that the residences with high mrtality culd be seen bviusly. Snw fund that residents f zer death hmes did nt have water frm a pump because they received free beer. As a result, snw suspected that the pump was the prblem. Supprted by anther case, snw cncluded that the water in the pump carried chlera bacteria. He immediately had the pump handle remved, cutting ff the transmissin f chlera. The furth paragraph reveals the truth abut the spread f chlera. It has been prved that the water in Brad Street is plluted by waste, and peple wh drink such water will greatly increase the prbability f getting sick. The last paragraph describes Snw's cntributin t the cntrl f chlera transmissin.
Thanks t snw's tireless effrts, peple began t drink clean water, and the threat f chlera was significantly reduced wrldwide. His research results and research methds are als f practical significance t the preventin f chlera tday, and "chlera map" has becme a classic case f epidemilgical research, s snw has wn the reputatin f "father f epidemilgy".
Leading students t read abut hw Jhn Snw defeated “King Chlera”
Guiding students t analyze Jhn Snw's scientific prcess and methds f defeating the epidemic f chlera
Instructing stuendents t figure ut the basic scientific research steps, and understand the imprtant rle f questining spirit in scientific research.
Instructing students t understand the imprtant rle f questining spirit in scientific research.
Encuraging students t slve the reading tasks by thinking lgically and cperating with peers.
1.Enable students t wrk ut the stages f scientific research.
2.Cultivate students t frm the spirits f raising new questins.
Lead in
Name sme famus scientists yu knw and share sme details abut them. The teacher can shw sme sme pictures abut sme famus scientists with the help f the multimedia. If it is t difficult, the teacher can inspire students by asking sme questins. Take Charles Darwin fr example, the teacher can shw a picture abut him and then ask a questin:Wh wrte a bk explaining hw animals and plants develped as the envirnment changed?
Pre-reading:
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.
key: The text is mainly abut Jhn Snw and hw he defeated king chlera.
Step 1: Read the text 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
Key: 1. find a prblem 2. ask a questin 3. think f a methd 4. cllect data 5. analyze the results 6. find supprting evidence 7. draw a cnclusin
Step 2: Read the text quickly 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?
keys:
1. T tell us hw Jhn Snw fund the cause f chlera and the cure fr it.
2. T destry Chlera nce and fr all.
3. T help him find the reasn f the chlera utbreak by marking the residences f all the patients.
4. Unsure; he suspected that the water pump was t blame. Thus, he needed mre supprting prf.
5. Because chlera was the mst deadly disease f its day.
Step 3： Read the passage again and cmplete the chart belw.
At was believed that chlera was caused by bad _1___r germs in___2__________（A）
Snw __3______the places where the peple wh _4___had lived.(B)
Many deaths ccurred near the ____5_______in Brad Street.
Sme peple _6__drunk the water frm the pump, and lived.
A wman and her daughter died in anther part f Lndn after__7_.
(C)
The __9__f the pump was remved.(E)
The pump water carried _____8___(D)
keys: 1. air 2. fd r water 3. marked 4. died 5.water pump 6. had nt 7. mving away frm Brad Street 8. chlera germs 9. handle.
Step 4：Match the fllwing headers with the letters frm the chart abve. write A---E in the blanks.
cnclusin____________
evidence _____________
prcess_____________
slutin _____________
theries_____________
keys: 1—5: DCBEA
Step 5： After learning the text, discuss with yur peers abut the fllwing questins:
1.Jhn Snw believed Idea 2 was right. Hw did he finally prve it?
2. D yu think Jhn Snw wuld have slved this prblem withut the map?
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.
keys:
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.
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.
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.
Step 6: Cnslidate what yu have learned by filling in the blanks:
Jhn Snw was a well-knwn _1___ in Lndn in the _2__ century. He wanted t find the _3_____ f chlera in rder t help peple ___4_____ it. In 1854 when a chlera __5__ Lndn, he began t gather infrmatin. He ___6__ n a map ___7___ all the dead peple had lived and he fund that many peple wh had ___8____ (drink) the dirty water frm the __9____ died. S he decided that the plluted water ___10____ chlera. He suggested that the ___11__ f all water supplies shuld be _12______ and new methds f dealing with ____13___ water be fund. Finally, “King Chlera” was __14_____.
Keys: 1. dctr 2. 19th 3.cause 4.infected with 5.hit 6.marked 7.where 8.drunk
9.pump 10.carried 11.surce 12.examined 13.plluted 14.defeated
Hmewrk: Retell the text after class and preview its language pints.
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