高中英语人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists备课课件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备课课件ppt，共23页。PPT课件主要包含了Lead in，Mask up，Reading，Who ，How ，What ，how，John Snow，Para 1 ，Para 2 等内容，欢迎下载使用。

1.chlera n.　　　　 2.diarrhea n.　　　　 3.dehydratin n.　　　　 4.cntradictry adj.　　 　　　 5.germ n.　　　　 6.pump n.　　　　 7.husehld n.　　 　　 8.raw adj.　　　 　  9.pure adj.　　　　  10.statistic n.[pl.] 　 　　　 11.epidemilgy n.　　　　 12.　　　　　 adj.极为恶劣的;十分严重的;严厉的 13.　　　　　 adj.懊恼的;沮丧的;失意的 14.　　　　　 vt.使感染;传染→　　　　　 n.感染;传染 15.　　　　　 vt.认购(股份);定期订购;定期交纳(会费) 
相互矛盾的;对立的;不一致的
一家人;家庭;同住一所(套)房子的人
未煮的;生的;未经处理的;原始的
统计数字;统计资料;统计学
frustrated　
16.　　　　　 n.证据;证明;检验 17.　　　　　 adj.数量多的;多种多样的 18.　　　　　 vt.&vi.怀疑;疑有;不信任　n.犯罪嫌疑人;可疑对象 19.　　　　　 vt.把……归咎于;责怪;指责　n.责备;指责、20.　　　　　 n.把手;拉手;柄　vt.处理;搬动;操纵(车辆、动物、工具等) 21.　　　　　 n.介入;出面;干涉 22.　　　　　 n.联系;纽带　vt.把……连接起来;相关联 23.　　　　　 adj.大量的;价值巨大的;重大的 24.　　　　　 n.减少;降低;减少量　vt.&vi.(使大小、数量等)减少;减小;降低 25.　　　　　 vt.使改观;使改变形态　vi.改变;转变 26.　　　　　 n.显微镜  
interventin
substantial　
1.最令人害怕的疾病之一2.一场爆发袭击了欧洲3.死于…4.变得沮丧5.晋升为一名出名的医生6.照顾，照料7.生子8. 渴望摧毁霍乱9.彻底地10.细菌感染11.同意；赞同12.在两条特别的街上13.需要证据14.下定决心做…
1. ne f the mst feared diseases2. an utbreak hit Eurpe3. die frm4. becme frustrated5. rise t became a famus dctr6. attend t7. give birth8. the desire t destry chlera9. nce and fr all10. an infectin frm germs11. subscribe t12. in tw particular streets13. need prf14. be determined t d
Fcus n language
15. 在地图上标记确切的地方16.靠近水泵数量众多的死亡17. （对…）负有责任；应受责备18. 让人运水19.携带霍乱细菌20.让人把把手移除21. 疾病在感染途中被中断22. 其他情况下的23. 被未经处理的废弃物感染/污染24. 不懈的努力25.见证了巨大的下降26. 多亏了；由于27. 改变了科学家研究疾病的方式
15. mark n a map the exact places16. multiple deaths near the water pump17. be t blame18. had the water delivered 19. carry chlera germs20. have the handle remved21. the disease was stpped in its tracks22. ther cases f23. be infected/plluted by raw waste24.tireless effrts25.see a substantial decrease 26. thanks t27.transfrm the way scientists study diseases
Pst-reading
“T raise new questins, new pssibilities,t regard ld prblems frm a new angle,requires creative imaginatin and marks real advance in science.”- Albert Einstein”
“提出新的问题，发现新的问题，从新的角度审视已存在的问题，这些需要创造性的想象力，并标志着科学的真正进步。”- 阿尔伯特·爱因斯坦”
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?
bird-flu（禽流感）
malaria [məˈleriə]（疟疾）
plague[pleɪɡ]（鼠疫）
Ebla [ɪˈbəʊlə] (埃博拉)
Wh Helped Defeat Malaria?
/ˌdaɪəˈrɪə/
/ˌdiːhaɪˈdreɪʃn/
/ɪnˈfekʃən/
It begins in the stmach and a severe case can lead t death withut immediate treatment.
Jhn Snw Defeats “King Chlera”
Jhn Snw Defeats “King Chlera”
Accrding t the title, the stry is ging t tell us infrmatin abut...
The text is mainly abut ____________ and _______ he defeated king chlera.
scientific research
Draw a cnclusin
Cllect data
Ask a questin
Find a prblem
Analyze the results
Find supprting evidence
Think f a methd
Stages f Scientific Research
D yu knw hw t prve a new idea in scientific research?
Hw many stages are needed t set ut a scientific research?
Activity 1: Read the whle text quickly and match the main idea
Jhn Snw desired t destry chlera.
Jhn Snw decided t prve the secnd thery.
Snw began his study by marking n the map.
Truth f the infectin f chlera.
Snw's cntributins.
Fast reading
Careful Reading
Research backgrund
2. Why was the disease called “”King Chlera?
Chlera used t be ne f the mst feared diseases in the wrld, until a British dctr, Jhn Snw, shwed hw it culd be vercme. This illness causes severe diarrhea, dehydratin, and even death. In the early 19th century, when an utbreak f chlera hit Eurpe, millins f peple died frm the disease. As a yung dctr, Jhn Snw became frustrated because n ne knew hw t prevent r treat chlera. In time, he rse t becme a famus dctr, and even attended t Queen Victria when she gave birth. Hwever, he never lst his desire t destry chlera nce and fr all.
expert/experienced/knwledgeable
uncntrllable
1. Wh is Jhn Snw?
In general, dctrs in thse days had tw cntradictry theries t explain hw chlera spread. One thery was that bad air caused the disease. Anther was that chlera was caused by an infectin frm germs in fd r water. Snw subscribed t the secnd thery. It was crrect, but he still needed prf. Cnsequently, when an utbreak f chlera hit Lndn in 1854, Snw began t investigate. He discvered that in tw particular streets the chlera utbreak was s severe that mre than 500 peple died in ten days. He was determined t find ut why.
1. What are the tw theries? Which thery did Jhn Snw think was reasnable?2. What did Jhn Snw investigate when anther utbreak hit Lndn in 1854?
Find a prblem→Ask a questin
What des the red stars stand fr?
multiple deaths happened here.
What des the green stars stand fr?
N death happened here.
CLUE: free beer frm public huse
Suspect that the water frm the pump was t blame.
But he needed prfs!
1. What methd did Snw use?2. What did he find n the map? What did he d t deal with it?
A map f Brad Street
Analyze the results→Find supprting evidence
Snw began by marking n a map the exact places where all thse wh died had lived. There were multiple deaths near the water pump in Brad Street (especially huse numbers 16, 37, 38, and 40). Hwever, sme husehlds (such as 20 and 21 Brad Street, and 8 and 9 Cambridge8 Street) had had n deaths. These peple wrked in the pub at 7 Cambridge Street. They had been given free beer, and s had nt drunk the water frm the pump. Snw suspected that the water pump was t blame. What is mre, in anther part f Lndn, a wman and her daughter had died f chlera after mving away frm Brad Street. It seemed that the wman liked the water frm the pump s much that she had it delivered t her huse every day. …
the water pump was t blame
Draw a cnclusin
As a result f this evidence, Jhn Snw was able t annunce that the pump water carried chlera germs. Accrdingly, he had the handle f the pump remved s that it culd nt be used. Thrugh this interventin, the disease was stpped in its tracks.
Pump water carried the chlera germs.
Remve the handle f the pump
The disease was stpped
chlera germs
frm the pump
drinking water
Read frm Para. 2-3 again and cmplete the chart belw.
cnclusin evidence prcess slutin theries
Why was Jhn Snw called the father f mdern epidemilgy(流行病学）?
Read Para.4 -5 and cmplete the fllwing tasks.
1. What did Snw find later?
Snw prved the water frm the Brad Street pump had been affected by waste. Mrever, Snw shw there was a link between ther cases f chlera and the different water cmpanies in Lndn.
2. What did Jhn Snw achieve?Why was Jhn Snw called the father f mdern epidemilgy(流行病学）?
Stages f Scientific Research
1. Find a prblem: What caused a chlera?2. Ask a questin：Which thery is right?3. Think f a methd：Gathered evidence，analyzed the results and remved the handle f the pump.4. Draw a cnclusin: The truth was that pump had been infected by waste.5. Take measures: Water cmpanies began t sell clean water and the threat f the disease decreased.
In rder nt t get infected with disease, what shuld we pay attentin t in ur daily life.
Drink biled water.
Remember t wear a mask when ging ut.
Heat the fd left vernight.
Wash yur hands ften.
Ck raw fd thrughly.
Deal with rubbish timely and prperly.