Unit1 Reading and Thinking （ppt课件）(2)-2022新人教版（2019）《高中英语》选择性必修第二册.pptx

1、Period 2Warming up and Reading Quiz Quiz！【必修必修 三三】Unit 2 Unit 2 Mother of Ten Thousand BabiesMother of Ten Thousand Babies 2,2,She is the the first woman who is She is the the first woman who is awarded Nobel Prize in China.awarded Nobel Prize in China.【选必一选必一】Unit Unit 1 1The Man Who Changed Our Th

2、e Man Who Changed Our Understanding of the Universe Understanding of the Universe【选必一选必一】Unit Unit 1 1 Chinese scientist,Chinese scientist,The Medal of the Republic,The Medal of the Republic,1 1“The father of Hybrid Rice”,“The father of Hybrid Rice”,【选必一选必一】Unit 5Unit 5 They were infected with Chole

3、raDo you know how to prove a new idea in scientific research?Draw a conclusionThink of a methodCollect resultsMake a questionFind a problemAnalyze the resultsRepeat if necessary Find a problemMake a questionThink of a methodCollect resultsAnalyze the resultsFind supporting evidenceDraw a conclusionJ

4、ohn Snow defeats“king cholera”A physician John SnowWhat do you know about cholera?Cholera:It begins in the stomach and a severe case can lead to death without immediate treatment.The victims died very quickly from a loss of liquid after severe vomiting(呕吐呕吐)and diarrhoea(腹泻腹泻).What does the text tel

5、l us?The text is mainly about _ and how he _ _ _.JohnSnowdefeated kingcholeraCholera used to be one of the most feared diseases in the world,until a British doctor,John Snow,showed how it could be overcome.This illness causes severe diarrhoea,dehydration,and even death.In the early 19th century,when

6、 an outbreak of cholera hit Europe,millions of people died from the disease.As a young doctor,John Snow became frustrated because no one knew how to prevent or treat cholera.In time,he rose to become a famous doctor,and even attended to Queen Victoria when she gave birth.However,he never lost his de

7、sire to destroy cholera once and for all.be severe on/with 对严厉be severe with oneself 严于律己die away(声音、风或光)逐渐消失die down 逐渐变弱；逐渐平息 die of 因而死die out 灭绝；消失by dying for/to do sth.渴望得到某物/做某事know knew knownonce and for all 最终地；彻底地与 once and for all 具有相同含义的短语还有 once for all。Who is John Snow?A famous doctor

8、in London.relationship attended to her when she gave birthcholeraJohn SnowWhat?It is one of _ because it causes _ _ When?_.Where?_.What consequence?_.the most feared diseases in the worldsevere diarrhoea,dehydration,and even deathIn the early 19th centuryEuropeMillions of people died from the diseas

9、eWho?A _ doctor who even attended to _ when she gave birth.What?He had a desire to _ once and for all.young British Queen Victoria destroy choleraRead para.1 and fill in the blanks below.In general,doctors in those days had two contradictory theories to explain how cholera spread.One theory was that

10、 bad air caused the disease.Another was that cholera was caused by an infection from germs in food or water.Snow subscribed to the second theory.It was correct,but he still needed proof.Consequently,when an outbreak of cholera hit London in 1854,Snow began to investigate.He discovered that in two pa

11、rticular streets the cholera outbreak was so severe that more than 500 people died in ten days.He was determined to find out why.infect vt.使感染；传染be infected with 感染上，传染上infectious adj.感染的，传染性的subscription n.捐助；订阅；签署；同意subscriber n.订阅人1.What were the two theories about the cause of cholera?2.Which di

12、d John Snow want to prove?a.Cholera multiplied in the air.b.People absorbed cholera into their bodies with their meals.The second one.Snow began by marking on a map the exact places where all those who died had lived.There were multiple deaths near the water pump in Broad Street(especially house num

13、bers 16,37,38,and 40).However,some households(such as 20 and 21 Broad Street,and 8 and 9 Cambridge Street)had had no deaths.These people worked in the pub at 7 Cambridge Street.They had been given free beer,and so had not drunk the water from the pump.Snow suspected that the water pump was to blame.

14、What is more,in another part of London,a woman and her daughter had died of cholera after moving away from Broad Street.It seemed that the woman liked the water from the pump so much that she had it delivered to her house every day.As a result of this evidence,John Snow was able to announce that the

15、 pump water carried cholera germs.Accordingly,he had the handle of the pump removed so that it could not be used.Through this intervention,the disease was stopped in its tracks.multiple n.倍数 adj.数量多的vt.&vi.怀疑；疑有；不信任搭配suspect.of.怀疑有罪suspect.to be/as 怀疑是（2）n.犯罪嫌疑人；可疑对象n.轨道;(人踩出的)小道，小径;(人、动物或车辆留下的)足迹，踪

16、迹;车辙;（火车站的）站台;跑道;（移动的）路径，路线，方向;一首乐曲，一首歌曲;音轨，声道;（幕帘的）滑轨，滑道;（推土机等的）履带;v.追踪;(尤指用特殊电子设备)跟踪;跟踪摄影;留下（脏）足迹;It seemed that the woman liked the water from the pump so much that she had it delivered to her house every day.have sth.done 结构so.that 引导结果状语从句It seemed that “看来”,that引导表语从句have sth done有三种意思，分别是：（1）

17、请某人完成某事，如：I had that door painted last week.上星期我请人把那扇门做了油漆。（2）（主语）完成了某事，如：we must have the work finished by Tuesday.（3）（主语）遭受某种不幸的情况。如：I had my leg broken when I got off the bus.have sth doing在肯定句中常表示“让某人做某事”，“让某情况发生”之意，含有动作正在进行之意。He soon had them all laughing.他很快让他们都笑了起来。have+宾语+do sth.使做某事I had so

18、meone clean your room.我请人打扫了你的房间。A map of Broad StreetWhat method did he use?Broad StreetMany deaths happened here.No death happened here.The water from the pump was to blame.Pub houseRead paras.2-3 and complete the chart below.It was believed that cholera was caused by bad _ or germs in _.Snow _ th

19、e places where the people who _ had lived.Many deaths occurred near the _ in Broad Street.Some people _ drunk the water from the pump,and lived.A woman and her daughter died in another part of London after _.The pump water carried _.The _ of the pump was removed.airfood or watermarked on a mapdiedwa

20、ter pumphadntdrinkingcholera germshandleA.C.B.D.E.water from the pumpThe truth was that the water from the Broad Street pump had been infected by waste.Moreover,Snow was later able to show a link between other cases of cholera and the different water companies in London.Some companies sold water fro

21、m the River Thames that was polluted by raw waste.The people who drank this water were much more likely to get cholera than those who drank pure or boiled water.n.联系；纽带vt.把连接起来；相关联搭配link.to.与连接；联系link.with.将和连接在一起What happened to the pump water?The water which came from the Broad Street pump had bee

22、n infected by waste.Through Snows tireless efforts,water companies began to sell clean water and the threat of cholera around the world saw a substantial decrease.However,cholera is still a problem.Each year,millions of people around the world get cholera and many die from it.Fortunately,we now know

23、 how to prevent cholera,thanks to the work of John Snow.Moreover,in his use of maps and statistics,Snow transformed the way scientists study diseases.For this reason,Snow is considered the father of modern epidemiology。【句式分析】本句是主从复合句。scientists study diseases 是定语从句，修饰 the way。the threat of cholera a

24、round the world saw a substantial decrease 是一个以无生命的名词词组作主语的句式。无生命的名词+see/find/witness.经历、发生、见证、目睹某事The city has seen great changes since 1990.这个城市自 1990 年以来发生了巨大的变化。【学法点拨】有些动词，如 see，find，witness 等，可以用地点或时间名词作主语，表示某地或某时经历、发生、见证或目睹某事。Last year witnessed a severe shortage of food.去年食物严重缺乏。英汉互译这棵古树见证了人们

25、生活水平的提高。_(2)晚上他在寂静的大街上独自徘徊。_(3)The last ten years have witnessed great changes in our city._(4)The street light found the girl crying._The old tree has seen the improvement of peoples life.The quiet street found him wandering alone in the evening.我们城市在过去的十年里发生了巨大变化。女孩在路灯下哭泣。【句式分析】本句是主从复合句。scientists

26、 study diseases 是定语从句，修饰 the way。the way 后跟定语从句Is this the way（in which/that）you protect the endangered species?这是你们保护濒危物种的方式吗？【学法点拨】在含有定语从句的复合句中，the way 作先行词时有以下三种情况：（1）关系词在定语从句中作状语，关系词用 in which，that 或省略。During those times，music can help you in the same way（that/in which）it helped me.在那些时间里，音乐可以像帮

27、助我一样帮助你。（2）关系词在从句中作主语，关系词用 that 或 which。He found a way which/that led to success.他找到了一条通向成功的路。（3）关系词在从句中作宾语，关系词用 that，which 或省略。The way（that/which）he told me sounds ridiculous，but I will give it a try.他告诉我的方法听起来很可笑，但我要试一试。单句语法填空(1)What surprised me was not what he said but the way _he said it.(2)No

28、one will support the way _he mentioned at the meeting.(3)Is this the way _was against by many people?完成句子(4)The Smiths are praised for _（他们抚养孩子的方式）.(5)I dont know _（汤姆是怎样从这样的大火中幸存下来的）.(in which/that)(that/which)which/thatthe way they bring up their childrenthe way Tom survived such a big fireWhat co

29、ntributions did John Snow make to science?He helped people know how to prevent cholera.He transformed the way scientists study diseases by using maps and statistics.What should we do to avoid getting infected with cholera?My suggestions We should drink boiled water.We should remember to wash our han

30、ds often.We should keep away from flies.We should never throw rubbish at random.We should keep our living surroundings as clean as possible.John Snow made up his mind to help ordinary people _ to cholera.At that time,no one knew its cause or _.He knew it would never be _ until its cause was found.Wh

31、en another outbreak hit London in 1854,he began to gather information Finally,he _ that the water was to _.He found all the deaths were _ to the polluted water,so he was able to _ with certainty that polluted water carried the disease.To _ this from happening again,John Snow suggested that the source of all water supplies be _.Finally,“King Cholera”was _.exposedcurecontrolledconcludedblamelinkedannouncepreventexamineddefeated