人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists优秀课件ppt

这是一份人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists优秀课件ppt，文件包含12Readingandthinking课件pptx、12Readingandthinking习题检测doc等2份课件配套教学资源，其中PPT共26页， 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  learn frm the great scientists and develp the  nble spirits .
Step 1. Lead-in
Name sme famus scientists yu knw and tell smething abut them.
Charles Darwin
Gregr Mendel
Marie Curie
Thmas Edisn
Zhng Nansha
Besides crnavirus, what ther kinds f epidemics（流行病）d yu knw?
Bird-flu malaria plague（鼠疫） Ebla Smallpx（天花）Chlera
Watch a vide abut Jhn Snw and the 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.
Step 2.Pre-reading
The text is mainly abut ____________ and _______ he defeated king chlera.
Step 3.While-reading
Jhn Snw desired t destry chlera.
Jhn Snw decided t prve the secnd thery.
Snw's cntributins
1.Listen and match the main ideas with each paragraph.
Snw began his study by marking n the map and the prcess.
Truth f the infectin f chlera.
2. Read the 1st paragraph quickly and fill in the mind map.
What? It's ne f ______________________in the wrld, because it causes ____________________________________________.
When? _______________________
Where? _______________________
What results? _______________________
the mst feared diseases
severe diarrhea, dehydratin and even death .
In the early 19th century
Millins f peple died frm the disease
3. Read Para.2 and 3 and chse the best did Jhn Snw becme frustrated?A.An utbreak f chlera hit knew hw t prevent r treat used t be ne f the mst feared had t attend t Queen Victria when she gave birth.
2.Hw did Jhn Snw d the research?A.By using maps and drinking the water questining the experimenting with himself.
3.Why had sme husehlds had n deaths?A.Beer was a cure fr the lived far away frm the water had nt drunk the water frm the wrked in the pub at 7 Cambridge Street.
4.Hw did Jhn Snw stp the peple frm using the water frm the pump?A.By telling peple that the water was asking water cmpanies t sell pure remving the handle f the water drinking mre free beer.
4.Read Para 2 and 3 again t cmplete the chart.
It was believed that chlera was caused by _______ r germs in __________.
The pump water carried ___________.
Many deaths ccurred near the ______________ in Brad Street.
Sme peple wh lived near the pump wrked in the pub and _________ drunk the water frm the pump ,and lived.
A wman and her daughter had died after ______________________________, because she had the water____________________ every day.
Snw began by _________________ the places where peple _____________.
Snw had the handle f the pump _________.
marking n the map
died had lived
mving away frm Brad Street
delivered t her huse
chlera germs
Supprting evidence
5.Read Para 4 and answer the questins belw.
1.What caused chlera's utbreak in the Brad Street?The truth was that the water frm the Brad Street pump had been infected by waste.
2.Hw were peple infected with the virus f chlera?Sme cmpanies sld water frm the River Thames that was plluted by raw waste. The peple wh drank this water were much mre likely t get chlera than thse wh drank pure r biled water.
6.Read Para 5 carefully and fill in the blanks.
The result:Thrugh Snw’s tireless , water cmpanies began t sell , and the threat f chlera arund the wrld saw a substantial . , chlera is still a prblem.Each year, f peple arund the wrld get chlera and many it.
clean water
Step 4.Pst-reading
1.Jhn Snw believed Idea 2 was right. Hw did he finally prve it?2.Chlera is a 19th century disease. What disease d yu think is similar t chlera tday?3.What qualities d yu need t be a scientist?
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. Chlera is a 19th century disease. What disease d yu think is similar t chlera tday? SARS and Cvid-19 because they are bth deadlyand fatally infectius, have an unknwn cause andneed serius public health care t slve them urgently.
determinatin
selflessness
strict attitude
In the early 19th century, an utbreak f chlera hit Eurpe, _________ (cause) millins f deaths. seeing this, Jhn Snw became frustrated because n ne knew hw ___________ (prevent) r treat chlera. At that time, dctrs had tw theries t explain hw chlera spread. One was that bad air caused the disease and anther was that chlera was caused by germs in fd r water. Jhn discvered that in tw particular street _____ chlera utbreak was _____ severe that ver 500 peple died in ten days. Thrugh his serius ____________ (investigate), he fund it was the pump water in Brad Street _______ resulted in the disease.
investigatin
Therefre, he had the handle f the pump ____________(remve). It turned ut that the water frm the pump ________________ (infect) by waste. Thrugh Snw's tireless effrts, water cmpanies began t sell clean water ,and the threat f chlera arund the wrld saw _____ substantial decrease.Snw transfrmed the way ____________ scientists study diseases. Fr this reasn, he is cnsidered the father f mdern epidemilgy.
had been infected
that/in which