2020年北师大版高中英语选修7课件：Unit21 Lesson 3 Epidemics Explained

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1、,Unit 21 Human Biology,PART 1,基础自测,PART 2,课文预读,PART 4,达标检测,Lesson 3 Epidemics Explained,PART 3,互动探究,PART 1,基础自测,默写练习(三),.写出下列单词的汉语意思(共10小题；每小题2分，满分20分) 1.urban adj. _ 2.rebuild vt. _ 3.trial n. _ 4.unite vt. _ 5.pause n. _ 6.acute adj. _ 7.statistics n. _ 8.symptom n. _ 9.routine n. _ 10.parallel n.

2、 _,查看答案,城市的,重建,实验；试用；审判,联合；团结；统一,停顿；暂停,严重的；剧烈的,统计资料；统计数字,症状,常规；惯例,极相似之处；平行线,.写出下列汉语对应的英语单词(共10小题；每小题3分，满分30分) 11.禁止vt. _ 禁止；禁令n. _ 12.新闻界；报界n. _ 13.变化；变种n. _ 适应vi. _ 14.预见vt. _ 15.感到悲痛；表示哀悼vi.& vt. _ 16.带菌者n. _ 携带vt. _ 17.表明重要性；强调vt. _,查看答案,prohibit,prohibition,press,adaptation,adapt,foresee,mourn,c

3、arrier,carry,underline,18.彻底的；细致的adj. _ 19.协作；配合n. _ 20.信心n. _ 忠实的adj. _ 如实地；忠诚地adv. _,查看答案,thorough,teamwork,faith,faithful,faithfully,.写出下列短语或短语对应的汉语意思(共10小题；每小题2分，满分20分) 21.彻底毁灭；彻底消灭 _ 22.die of _ 23.(使)扫过/掠过/迅速传遍于 _ 24.do trials on _ 25.up to _ 26.rather than _ 27.缺乏，缺少 _ 28.be harmful to _ 29.s

4、top sth. in its tracks _ 30.漏掉，忘掉 _,查看答案,wipe out,死于(疾病、过度悲伤等),sweep through,对做试验,达到(某数量、程度等),而不是,a lack of,对有害,终止；消灭,leave out,.完成句子(共3小题；每小题10分，满分30分) 31.Since the SARS epidemic ended，scientists _ trials on treatments to prohibit any future outbreaks. 自从“非典”疫情结束后，科学家们就已经着手做治疗实验以防止将来该疫情再次爆发。 32.Hav

5、ing killed up to 50 million people in 18 months，with a tendency to strike the young and fit rather than the old，the Spanish Flu is believed _ the most acute epidemic in history. 西班牙流感在18个月的时间里就杀死了5 000万人，它有传染年轻人和身体健康的人而不是老年人的倾向，因此该流感被认为是人类历史上最严重的传染病。,查看答案,have been doing,to have been,33.It struck ne

6、ar the end of the First World War and _ worldwide. 它于第一次世界大战的尾声来袭，使全球的家庭陷入了一片哀伤之中。,查看答案,left families mourning,PART 2,课文预读,回归教材 萃取文本主旨,.True(T) or False(F). 1.Flu kills millions of people every year.( ) 2.Most diseases are very new.( ) 3.Epidemics have affected historical events.( ) 4.It takes years

7、 for a disease to spread worldwide.( ) 5.Epidemics can wipe out up to half of the population in urban areas.( ),查看答案,T,T,T,T,T,.Read the passage carefully and choose the best answer. 1.Why is it important to look at the spread of diseases through the history? A.Because it can enlarge our knowledge.

8、B.Because many epidemics could be the next global epidemics. C.Because people are curious about the history of epidemics. D.Because it can help us discover the causes and effects of epidemics，and foresee and prevent them in the future.,查看答案,2.Which of the following is one of the earliest epidemics o

9、n record? A.The Black Death. B.The epidemic which happened about 500550 AD and swept through North Africa，the Middle East and Europe. C.The Spanish Flu. D.SARS.,查看答案,3.Which of the following is one of the main causes of the fall of the Roman Empire according to the passage? A.Up to 50% of the areas

10、population died from a serious epidemic. B.The king of the Roman Empire died. C.The economy of the Roman Empire had fallen down. D.Other countries invaded the Roman Empire.,查看答案,4.Which of the following is NOT the condition for “The Black Death” to spread worldwide? A.War. B.Crowded cities. C.A lack

11、 of basic health routines. D.Food.,查看答案,5.What kind of people did the Spanish Flu strike most? A.Women. B.The young and fit. C.The old. D.The weak.,查看答案,PART 3,互动探究,探究重点 互动撞击思维,Epidemics can wipe out up to half of the population in urban areas. 传染病能够彻底毁灭城市一半的人口。,1,wipe out彻底毁灭；彻底消灭,wipe away/off/up

12、(用布、手等)擦干净，抹掉 wipe sth. down/wipe down sth. (用湿布)彻底擦干净,重点词汇,(1)This kind of disease was nearly wiped out in the United States 14 years ago. 这种疾病14年前在美国就已经被彻底消灭了。 (2)Wipe your tears away/off/up；believe yourself and try again. 擦干你的眼泪，相信自己，再试一次。 (3)When youve washed the car，wipe it well. 洗完车后，要把它用(布)彻底

13、擦干净。,查看答案,down,2,Since the SARS epidemic ended，scientists have been doing trials on treatments to prohibit any future outbreaks.自从“非典”疫情结束后，科学家们就已经着手做治疗实验以防止将来该疫情再次爆发。,prohibit vt.禁止,prohibit doing sth. 禁止做某事 prohibit sb. from doing sth. (prohibit ones doing sth. )禁止某 人做某事 prohibition n.禁止；禁令 prohib

14、ition against.的禁令,注意：表示“禁止/阻止某人做某事”的其他表达法： discourage sb. from doing sth. ban sb. from doing sth. prevent sb. (from) doing sth. forbid sb. from doing sth. keep sb. from doing sth. stop sb. (from) doing sth. protect sb. from doing sth.,(1)The new rules prohibit smoking in places like restaurants，hote

15、ls and railway stations. 这项新规禁止在像餐厅、旅店、火车站等地吸烟。 (2)We are prohibited from drinking alcohol during working hours. 我们禁止在工作时间内喝酒。 (3)The prohibition drunken driving will save many lives. 酒后开车的禁令将会挽救许多人的生命。 (4)China has consistently stood for the complete (prohibit) of the use of nuclear weapons. 中国一贯主张

16、全面禁止使用核武器。,查看答案,against,prohibition,foresee vt.预见；预知,3,It is important to look at the spread of diseases throughout history to discover the causes and effects of epidemics，and hopefully，foresee and prevent them in the future.重要的是回顾一下历史上疾病的传播情况，从而弄清楚流行病的起因和后果，并且希望将来能够预见并阻止它们的发生。,foresight n.先见，远见；预见

17、foreseeable adj.可预知的；能预测的 注意：foresee的过去式为foresaw，过去分词为foreseen。,(1)I dont foresee any difficulties so long as we keep within budget. 只要我们不超出预算，我不会预见会有什么困难。 (2)He had the foresight to invest his money carefully. 他深谋远虑，投资谨慎。 (3)He could never that one day his books would sell in millions. 他从没预想过有一天他的书

18、会卖掉几百万本。 (4)The increased demand for organic produce was not (foresee) ten years ago. 对有机产品需求的增长在十年前是无法预见的。,查看答案,have foreseen,foreseeable,faith n.信心；信任；信仰；信念,4,With all the international effort being made，we have to have faith that there will be solutions in time to stop a Bird Flu epidemic in its

19、tracks. 随着国际间的共同努力，我们应该相信人们会及时找到解决方案来彻底消灭禽流感。,have faith in sb. 信任某人/对某人有信心 lose faith in对失去信心/不再相信 in good faith真诚；诚心诚意地 faithful adj.忠诚的；诚实的；如实的 be faithful to忠实于，忠诚于 faithfully adv.准确地；如实地；忠实地,(1)I think the faith that everyone has shown in him has touched him.(2018北京) 我认为大家对他的信任打动了他。 (2)The woma

20、n who sold me the car claimed she had acted in good faith. 那个卖给我汽车的女人声称她是真心实意出售的。 (3)He is always telling lies，so nearly all the people him. 他总是撒谎，因此几乎所有人都不再相信他了。 (4)Every translator should try to keep the translation as (faith) as possible to the original book. 每一位译者的翻译都应该努力忠实于原著。,查看答案,lose faith i

21、n,faithful,stop sth. in its tracks终止；消灭,stop sb. in sb. s tracks (由于恐惧或吃惊)某人突然止步或怔住 back on track重新步入正轨；恢复正常 be on track稳步前进；做法对头 keep/lose track of.了解/不了解的动态；与保持/失去联系,(5)This famous sportsmans career was stopped in its tracks because of doping. 因为服用违禁药品，这位著名的运动员的运动生涯被终止了。,查看答案,(6)What happened then

22、? The noise . 后来呢？ 那声音使我突然怔住了。 (7)Curtis for the gold medal. 柯蒂斯正踏上夺金之途。 (8)Bank statements help you where your money is going. 银行对账单有助于你了解你的资金流向。,stopped me in my tracks,is on track,keep track of,It struck near the end of the First World War and left families mourning worldwide.它于第一次世界大战的尾声来袭，使全球的家

23、庭陷入了一片哀伤之中。,经典句式,本句中使用了“leave宾语宾补”的结构，其用法如下： (1)leave宾语形容词/副词/介词短语，表示“使处于某种状态”； (2)leave宾语名词，多表示一种结果； (3)leave宾语现在分词/不定式，其中宾语与构成宾补的动词之间是逻辑上的主谓关系。其中现在分词常用来表示使某人或某物一直做某事；而不定式则表示让某人或某物去做某事(多指动作尚未发生)； (4)leave宾语过去分词，常用来表示宾语所处的状态或表示动作已经完成，其中宾语与宾补之间是逻辑上的动宾关系。,(1)He had to give up the match，for his illness

24、 had left him very weak. 他只好放弃比赛，因为他的病使他的身体很虚弱。 (2)His parents both died last year，leaving him an orphan. 他父母去年双双去世，使他成了孤儿。 (3)He left his lawyer (deal) with his will after his death. 他让律师在他死后处理他的遗嘱。 (4)Keep in mind that you shouldnt leave the work half (do). 记住：不应该半途而废。 单句改错 (5)Dont leave her wait

25、outside in the rain.,to deal,done,waiting,查看答案,PART 4,达标检测,当堂检测 基础达标演练,1.I have searched (thorough) for the book but couldnt find it. 2.Common people are prohibited entering this palace. 3.He made a quick (adapt) to the new environment. 4.An experienced doctor judges a patients illness according to

26、the various (symptom). 5.Several facts have told us humans must stop the destruction of the environment its tracks. 6.The old man told us that he (foresee) the bright future before.,.单句语法填空,查看答案,thoroughly,from,adaptation,symptoms,in,had foreseen,7.No matter what happens，the girl is always (faith) t

27、o her friends. 8.He left the room，leaving his son (stand) there，crying loudly. 9.Only in this way can we wipe the enemy troops. 10.The teacher asked the students to pay attention to the _ (underline) words.,查看答案,faithful,standing,out,underlined,11.John rushed out in a hurry， . 约翰匆忙地冲了出去，门都没有锁。 12.To

28、m the online games for more than twenty hours. 汤姆持续玩网游已经超过二十个小时了。 13.We should give more help to such people _ . 我们应该给予那些依然过着贫穷生活的人更多的帮助。 14.We should him，for he is always honest. 我们应该信任他，因为他一直很诚实。,查看答案,.完成句子,leaving the door unlocked,has been playing,who/that still live/lead/have a,poor life,have f

29、aith in,15.The government an election in June. 人们认为政府正计划在六月举行大选。,查看答案,is thought to be planning,One of the earliest epidemic on record happened about 500-550 AD when the Roman emperor at the time was attempted to rebuild the Roman Empire.In the 1330s，“The Black Death” appeared in Asia，that spread ra

30、pid.Years ago，SARS breaks out.Since then，scientists had been doing trials to prohibit any future outbreaks.Before SARS，the Spanish Flu is believed to have been most acute epidemic in history because of it killed 50 million people in 18 months.,查看答案,.课文短文改错,epidemics,attempting,which,have,rapidly,broke, the,However，since Bird Flu first appeared in 1997，it has taken many than a hundred lives.With all the international effort being made，we have faith which there will be solutions to stop it.,查看答案,more,that,