Unit 9 Lesson 3 Epidemics Explained （ppt课件+音频）(02)-2023新北师大版（2019）《高中英语》选择性必修第三册.zip

1、Lesson 3 P58-61新新北师大选择性必修北师大选择性必修Book 3 Unit 9 HUMAN BIOLOGY EPIDEMICS EXPLAINEDCOVID-19COVID-19 is a new strain of coronavirus that has not been previously identified in humans.The COVID-19 is the cause of an outbreak of respiratory illness first detected in Wuhan,Hubei province,China.SARSSevere ac

2、ute respiratory syndrome(SARS)is a viral respiratory illness that was recognized as a global threat in March 2003,after first appearing in Southern China in November 2002.Ebola Virus DiseaseEbola Virus Disease(EVD)is a deadly disease with occasional outbreaks that occur mostly on the African contine

3、nt.EVD most commonly affects people and nonhuman primates.It is caused by an infection with a group of viruses within the genus Ebola virus.Look and discuss.1.Describe epidemics using your own words.2.Look at the above pictures and talk about the common points of epidemics.1What do you know about ep

4、idemics?Tick()the statements that you think are correct.1.An epidemic is the rapid spread of an infectious disease.()2.An epidemic can affect a large number of people in a given population.()3.An epidemic can occur within a short period of time,usually two weeks or less.()4.An epidemic may spread to

5、 several countries or continents.()5.Some common viruses,such as the common cold,are not epidemics.()6.A new epidemic can be a different variation of a virus that people caught in the past.()2Read the passage.Find out what an epidemic is and how a disease can be classified as an epidemic.Then circle

6、 all the epidemics mentioned in the passage.How does the passage develop?A.In order of time B.In order of spaceC.In order of logicD.In order of placeMatch epidemics with correct statements.Bird Flua.the most acute worldwide epidemicb.first appeared in 1997c.related to the 1918 Spanish Flu Epidemics

7、in the Roman Empirea.one of the earliest on recordb.one of the key causes of the fall of an empirec.the most acute worldwide Epidemica.less populated areas being less severely affected b.the most acute worldwide epidemicc.perfect conditions being provided for the disease to spreadThe Black Deatha.al

8、so called the Great Flu Epidemicb.the most acute Epidemicc.struck near the end of World War Id.more death of the flu than that in the war The Spanish Flu a.most people having no natural defenses against the disease b.yet,it has been forgotten by history pletely new to physiciansSARSEVDa.mostly happe

9、ned in West Africab.the survival rate was as low as 20%in some areac.the most widespread outbreak lasted from 2013 to 20163Pair Work.Complete the table about the epidemics mentioned.Then choose one disease to talk about with a partner.NamePeriodPlacesDeath tollBird FluEpidemics in the Roman EmpireTh

10、e Black Deathsince 1997500-550 CE1330SRomeAsia and Eropemore than a hundred liveshalf the populationNamePeriodPlacesDeath tollThe Spanish FluSARSEVD1981-the end of World War 2002-20032013-2016China,Canada,Vietnam and SingaporeWest Africa50 million peoplemore than 11,310 death4Tick the aspects of inf

11、ormation that are mentioned in the passage.Use a diagram to demonstrate in a logical way how they are organised.when epidemics startedexamples of epidemicstreatmentsbaseline number of deaths of epidemicsdefinitionwhen it endedpossible causes of epidemicspossible solutionsDeveloping Concepts Based on

12、 the TextConcepts are not always clearly defined in a text.You need to read and develop your understanding.Read the text to get the general idea.Identify all the information related to the concept,e.g.examples,developments,effects,etc.Organise the information and explain the concept from different a

13、ngles.Skill BuilderEpidemicsdefinition of epidemicsbaseline number of deaths of epidemicsexamples of epidemicswhen epidemics startedwhen it endedwork together to fight epidemics5 Group Work.Discuss the questions.1.What are the main features of an epidemic?Give at least two examples to illustrate you

14、r points.1.it is an infectious disease2.it spreads rapidly to a large numbr of people within a short period of time3.a certain number of deaths have occurred from the disease.The common cold is not an epidemic because while it affects many people,it does not cause deaths,so it is considered an epide

15、mic.2.What should different countries do to prevent outbreaks of epidemics in the future?Why？Countries will need to work together to do this because teamwork among nations across the globe can save lives.This is a good example of building a community with shared future for mankind.FeaturesPurposesPr

16、oblems3.What does the title mean to you?What does the writer want to convey in the passage?The title means that the passage will explain questions about epidemics.The author wants to convey the information that we are always on our way to find an explanation to epidemics so as to find cure.It also i

17、mplies that epidemics occurred naturally and inevitably.We can only explain it,and cant prevent it or stop it completely now.4.What do you think the passage is written for?This is a popular science article.It is more likely to be written for people who is interested in this topic or who has a lot of

18、 questions or misunderstanding of epidemics.6Complete these sentences in your own words.1.Epidemics can be caused by.2.Diseases can only be officially classified as epidemics when.3.The Spanish Flu spread worldwide because.a virus being carried into an area,or changes in the way people live.a certai

19、n number of deaths have occurred from the disease.more people were travelling and moving after World War.4.Since the end of the SARS epidemics,scientists.5.Countries need to work together to conduct thorough and systematic research because.have been doing experiments on treatments to prevent any fur

20、ther outbreaks.teamwork among nations across the globe can save lives.新北师大选择性必修新北师大选择性必修Book 3 Language points P58-59Unit 9 HUMAN BIOLOGY 课文回顾：1.Each disease can only officially be classified as an epidemics once a certain number of deaths have occurred from the disease.句意：只有致死病例达到一定数量，某种疾病才句意：只有致死病

21、例达到一定数量，某种疾病才会被定性为流行病。会被定性为流行病。classify.as.将将归类为；将归类为；将界定为界定为例句：例句：Only eleven of these accidents were classified as major.这些事故中只有十一例被判定为重大事故。这些事故中只有十一例被判定为重大事故。Some people classify pizza as junk food.一些人将披萨归类为垃圾食物。一些人将披萨归类为垃圾食物。2.So a very rare disease will have a low baseline and just a few cases

22、of it in one place will be classified as an epidemic;as opposed to more common diseases,such as the flu,that have a higher baseline.句意：罕见疾病的基线很低，即使某一地区只出现句意：罕见疾病的基线很低，即使某一地区只出现少数病例，也会被认定是流行病；与此相反，常见少数病例，也会被认定是流行病；与此相反，常见疾病的基数较高，如流感。疾病的基数较高，如流感。1)opposed adj.反对的；不赞成的反对的；不赞成的be opposed to sth例句：例句：I a

23、m firmly opposed to any form of terrorism.我坚决反对任何形式的恐怖主义。我坚决反对任何形式的恐怖主义。2)opposed adj.对立的；相反的；迥异的对立的；相反的；迥异的例句：例句：Our views are opposed on this issue.在这个问题上，我们的观点是相反的。在这个问题上，我们的观点是相反的。3)as oppsed to.相对于；而不是相对于；而不是例句：例句：We ate in the restaurant,as opposed to the bistro.我们是在餐厅吃的饭，而不是小饭馆。我们是在餐厅吃的饭，而不是小

24、饭馆。3.Families who had only just got through the war now had to bury their loved ones who had died of the disease.句意：刚刚熬过战争的人们现在不得不埋葬句意：刚刚熬过战争的人们现在不得不埋葬他们死于疾病的亲人。他们死于疾病的亲人。get through 1）度过，熬过（困难或不快的时期）度过，熬过（困难或不快的时期）例句：例句：It is hard to see how people will get through the winter.难以想象人们将怎样熬过这个冬天。难以想象人们

25、将怎样熬过这个冬天。2）完成，干完（尤指难做的任务或工作）完成，干完（尤指难做的任务或工作）例句：例句：I think you can get through the first two chapters.我认为你能看完前两章。我认为你能看完前两章。3）消耗，用完（大量某物）消耗，用完（大量某物）例句：例句：The baby will get through at least ten nappies a day.这个宝宝每天至少得用十块尿布。这个宝宝每天至少得用十块尿布。4）通过电话联系上；接通）通过电话联系上；接通的电话的电话例句：例句：Iv been trying to ring up a

26、ll day and I couldnt get through.我打了一天电话，但总是接不通。我打了一天电话，但总是接不通。4.The virus was extremely infectious and the survival rate was as much low as 30%in some areas,indicating that very few people got over it.句意：该病毒传染性极强，一些地区的存活句意：该病毒传染性极强，一些地区的存活率低至率低至30%，也就是说很少有人能康复。，也就是说很少有人能康复。indicate v.表明；说明表明；说明1)in

27、dicate+that从句从句例句：例句：A survey of retired people has indicated that most are independent and enjoying life.对退休人员的调查表明，大部分人都自食其力，对退休人员的调查表明，大部分人都自食其力，享受生活。享受生活。2)indicate+n例句：例句：The vote today indicates a change in national policy.今天的选举表明了国家政策的一种变化。今天的选举表明了国家政策的一种变化。3)indicate+wh从句从句 例句：例句：It indicate

28、s whether this teaching form is suitable for children.由此可以看出这种教学形式是否适合儿童。由此可以看出这种教学形式是否适合儿童。5.Despite,or perhaps because of,the epidemics the world has faced in recently years,governments worldwide have underlined the fact that they want thorough and systematic medical research on epidemics to get a

29、t the causes and come up with cures as soon as possible.句意：句意：尽管（或者是因为）近年来全球爆尽管（或者是因为）近年来全球爆发了流行病，世界各国政府都已经强调，发了流行病，世界各国政府都已经强调，要对流行病进行彻底和系统地医学研究，要对流行病进行彻底和系统地医学研究，以便尽快找出原因并找到治疗方法以便尽快找出原因并找到治疗方法。这需。这需要各个国家的共同努力，因为全球各国之要各个国家的共同努力，因为全球各国之间的团队合作才能拯救生命。间的团队合作才能拯救生命。1.despite 虽然；尽管虽然；尽管例句：例句：Despite appl

30、ying for hundreds of jobs,he is still out of work.尽管他申请了数百个工作，但仍然在失业中。尽管他申请了数百个工作，但仍然在失业中。despite oneself 不由自主地；禁不住地不由自主地；禁不住地例句：例句：He had to laugh despite himself.他不想笑，但还是不由自主地笑了出来。他不想笑，但还是不由自主地笑了出来。2.get at 1)查明；弄清楚查明；弄清楚例句：例句：We have to get at the truth.Who stole his wallet?我们必须查明真相。谁偷了他的钱包？我们必须查

31、明真相。谁偷了他的钱包？2)触及；够着；抓住触及；够着；抓住例句：例句：A goat was standing up against a tree on its hind legs,trying to get at the leaves.一只山羊后腿撑地，搭着树站立起来，试图一只山羊后腿撑地，搭着树站立起来，试图去够叶子。去够叶子。新新北师大选择性必修北师大选择性必修Book 3Grammar P61Unit 9 HUMAN BIOLOGY 短语动词短语动词 Phrasal Verbs1.定义定义短语动词是由两三个单词组成的动词，可以短语动词是由两三个单词组成的动词，可以是及物的（带宾语），也

32、可以是不及物的是及物的（带宾语），也可以是不及物的（不带宾语）。（不带宾语）。2.构成构成1）动词动词+介词介词2）动词动词+副词副词3）动词动词+名词名词/代词代词+介词介词4）动词动词+副词副词+介词介词动词动词+介词介词He was eager to get into politics.他渴望跻身政界。他渴望跻身政界。Its time for us to come to a conclusion.到我们做决定的时候了。到我们做决定的时候了。I like to go for a jog after work.我喜欢在下班后慢跑锻炼。我喜欢在下班后慢跑锻炼。动词动词+副词副词Shed gla

33、dly have gone anywhere to get away from the cottage.只要能离开那个小屋，去哪她都乐意。只要能离开那个小屋，去哪她都乐意。I came across a group of children playing.我碰到一群正在玩耍的小孩。我碰到一群正在玩耍的小孩。They were so far away that I couldnt make out their faces clearly.他们离得那么远，我没法把他们的脸辨认清他们离得那么远，我没法把他们的脸辨认清楚。楚。动词动词+名词名词/代词代词+介词介词In some countries,p

34、eople are making use of the heat in the center of the earth.在一些国家，人们正在利用地球中心的热量。在一些国家，人们正在利用地球中心的热量。I accused him of the crime.我控告他犯罪。我控告他犯罪。Mary is taking care of the children.玛丽正在照顾孩子们。玛丽正在照顾孩子们。动词动词+副词副词+介词介词Young adults must break away from their parents control in order to achieve independence.

35、为了达到自立，年轻人必须摆脱父母亲对他为了达到自立，年轻人必须摆脱父母亲对他们的支配。们的支配。Youll have to work very hard to make up for the time you lost.你要努力工作，以弥补失去的时间。你要努力工作，以弥补失去的时间。7Choose prepositions or adverbs in the box to make phrasal verbs with the three verbs in the Word Builder.Phrasal Verbsat into over up with through under up a

36、waygo getcomeat,over,through,awayat,into,over,through,up,awayat,into,over,up with,up,awaygo at攻击；拼命干攻击；拼命干go over仔细检查；认真讨论；用心思考仔细检查；认真讨论；用心思考go through经历；翻阅；彻查；（法律、协议等）被通经历；翻阅；彻查；（法律、协议等）被通过过go away离开（某地或某人）；外出（尤指度假）离开（某地或某人）；外出（尤指度假）get at触及，够着；查明，弄清楚触及，够着；查明，弄清楚get into成功涉足；考入，进入成功涉足；考入，进入get over

37、恢复过来；克服，战胜恢复过来；克服，战胜get through完成；熬过；消耗；使理解完成；熬过；消耗；使理解get up起立；起床起立；起床get away离开；外出度假；逃跑离开；外出度假；逃跑come at扑向；向扑向；向逼近逼近come into继承；在继承；在中起作用中起作用come over支配；开始觉得；给人以支配；开始觉得；给人以印象印象come up with想出，提出；设法拿出（所需钱款）想出，提出；设法拿出（所需钱款）come up走近；被提及；即将发生走近；被提及；即将发生come away分离，脱离；（带着某种感觉或印象）离开分离，脱离；（带着某种感觉或印象）离开Th

38、en use the phrasal verbs to complete the following sentences.1.The medical expert asked a few questions to try to _ the truth.2.Books on epidemics _ the medicine section of the store.3.During this course,well _ the main causes of bird flu.4.It took him a week to _ the e atgo undergo overget over5.Ha

39、s your headache _ yet?6.The price of this drug has _ twenty cents since August.7.Are you willing to stand by him and help him _ this difficult time?8.Jodan has _ some creative ideas for helping the sick.get overgone upgo throughcome up with8Group Work.Search online and find some information about ep

40、idemics in China or Asia.Report your information to the class.COVID-19 is a new strain of coronavirus that has not been previously identified in humans.The COVID-19 is the cause of an outbreak of respiratory illness first detected in Wuhan,Hubei province,China.Since December 2019,cases have been identified in a growing number of countries.And the number continues to increase.Thank you!