北师大版 (2019)选择性必修 第三册Lesson 3 Epidemics Explained教案配套ppt课件

这是一份北师大版 (2019)选择性必修 第三册Lesson 3 Epidemics Explained教案配套ppt课件，共60页。PPT课件主要包含了课前自主预习，课文语篇研读，匹配段落大意，课堂新知讲练，◇词汇拓讲，◇句式解读，语 言 时 空，□动词短语，□追踪练习，随堂知能小练等内容，欢迎下载使用。

Ⅰ．猜词意　A．官方地；正式地　B．强调；使突出；在……下面划线　C．将……分类；把……归为一类　D．因素；要素　E．估计；估算　
1．Yu can classify them based n similarities and differences. (　　)2．Officially, the minister resigned because f his bad health. (　　)3．Try t estimate hw many steps it will take t get t a clse bject. (　　)【答案】1．C　2．A　3．E　
4．A factr is ne f the things that affects an event, decisin, r situatin. (　　)5．This incident underlines the danger f travelling in the brder area. (　　)【答案】4．D　5．B　
Ⅱ．猜单词拼写　1．fficial adj. 官方的；正式的→________adv. 官方地；正式地　2．rare adj. 稀有的；罕见的；不常发生的→________　adv. 罕有，很少；异乎寻常地，极度　3．thrugh adj. 彻底的；全面的；详尽的→________　adv. 完全地，极度地；仔细地；彻底地　【答案】1．fficially　2．rarely　3．thrughly　
4．actual adj. 实际的；真实的→________adv. 实际上；事实上　(参考：desperate→desperately)　5．ut＋break→________ n. 爆发；突然发生　(参考：ver＋cme→vercme)　【答案】4．actually　5．utbreak　
Ⅲ．完成句子　1．Epidemics have been happening fr ________ living n Earth.自地球上有人类生活以来，流行病就一直存在。【答案】1．as lng as there have been peple　
2．Having killed up t 50 millin peple in 18 mnths, the Spanish Flu ________ have been the mst severe epidemic in histry.西班牙流感在18个月内造成5，000万人的死亡，成为历史上最严重的流行病。【答案】2．is believed t　
3．Scientists nw estimate that ________ died frm the epidemic, making it ne f the main causes f the fall f the Rman Empire.现今科学家估计，发病区域多达50%的人口死于这一流行病，成为罗马帝国衰落的一个主要原因。【答案】3．up t 50% f the area’s ppulatin　
4．With recent press reprts drawing parallels between bird flu and killer epidemic f the past, Jim Smith lks at the smetimes depressing histry f epidemic fr clues abut ________ ______ withut epidemics.最近的新闻报道将禽流感和过去的致命流行病进行了比较，吉姆·史密斯着眼于有时令人沮丧的流行病历史，为我们如何才能创造一个没有流行病的更积极的未来寻找线索。【答案】4．hw we can create a mre psitive future　
Ⅰ．阅读理解　(　　)1．Which f the fllwing can cause epidemics accrding t the passage?　A．A virus carried int an area.B．Fewer peple living in an area.C．Peple catching a cmmn cld.D．A wman having a high fever.【答案】A
(　　)2．What can we knw abut bird flu accrding t Paragraph Fur?　A．It first appeared in 1987．　B．It has taken ver ne thusand lives.C．It is a mdern adaptatin f the 1918 Spanish Flu.D．Peple dn’t wrry that it culd be the next glbal epidemic.【答案】C
(　　)3．What is the visible symptm f The Black Death?　A．The eyes becme terribly red.B．The bdy has black spts.C．Peple have a high fever.D．Peple cugh a lt.【答案】B
(　　)4．Which f the fllwing epidemics is believed t have been the mst severe in histry?　A．The SARS.B．The Ebla Virus Disease.C．The bird flu.D．The Spanish Flu.【答案】D
(　　)5．What des the writer want t cnvey in the passage?　A．He wants t tell us the histry f epidemics.B．He wants t call n the cuntries wrldwide t unite t cnduct thrugh and systematic medical research n epidemics.C．He wants t warn us f the danger f epidemics.D．He wants t give the definitin f an epidemic.【答案】B　
Ⅱ．判断正误　(　　)1．An epidemic is the rapid spread f an infectius disease.(　　)2．The cmmn cld affects millins f peple and is regarded as an epidemic.(　　)3．A new epidemic can be a different variatin f a virus that peple caught in the past.【答案】1－3　TFT　
(　　)4．The Spanish Flu struck near the end f Wrld War II.(　　)5．The SARS epidemic started in 2002 with a case f lung disease in Guangdng Prvince.(　　)6．The actual number f peple dying f the Ebla Virus Disease is mre than 11，310．　【答案】4－6　FTT　
【答案】Para. 1：B　Para. 2：D　Para. 3－8：C　Para. 9：A
1．variatin n. 变化物，变体；差异，变动　(P58)A new epidemic can be a different variatin f a virus that peple caught in the past.【翻译】一种新的流行病可能是过去人们感染的病毒的不同变种。
【语言提升】　vary vi. 变化　vary frm…t… 从……到……变化　A baby’s need fr fd can vary frm day t day.婴儿对食物的需求天天都在变化。
vary with… 随着……变化　The prices f the vegetables vary with the seasns.蔬菜的价格随季节而变化。vary in… 在……方面不同　Other services vary dramatically in quality.其他服务在质量上差异很大。
variety n. 种类；多样性　a variety f＝varieties f各种各样的　West Hampstead has a variety f gd stres and supermarkets.西汉普斯特德有几家不同的高品质商店和超市。varius adj. 各种各样的　
【针对练习】　单句语法填空　(1)Prices vary frm saln ________ saln, starting at $30 fr a cut and blw-dry.(2)The artist has painted the scene frm ________(vary) viewpints.【答案】(1)t　(2)varius　
(3)________(variety) f gds fr daily use are available in this department stre.(4)A ________(vary) f a gene can influence peple’s scial behavir.【答案】(3)Varieties　(4)variatin　
2．ppsed adj. 与某事物相反；反对某事物，不赞成某事物　(P58)…as ppsed t mre cmmn diseases, such as the flu, that have a higher baseline.【翻译】与流感等更常见的疾病相反，这些疾病的基线更高。
【语言提升】　be ppsed t (ding) sth. 反对(做)某事　She was strngly ppsed t the idea f mving abrad.她强烈反对移居国外。as ppsed t… 与……相反；而　200 peple attended the meeting, as ppsed t 300 the previus year.有200人参加了会议，而前一年有300人。
ppse vt. 反对，不赞成　ppse (ding) sth. 反对(做)某事　The residents ppse tearing dwn the ld building.居民们反对拆除那栋旧建筑。ppsite adj. 相反的；相对的　n. 反义词；对立面　prep. 在……对面　adv. 在对面　
【归纳拓展】　表示“反对”的其他表达：　bject t (ding) sth. ; be against等。
【针对练习】　单句语法填空　(1)She was firmly ppsed t her husband ____(take) this trip.(2)We ate in the lcal restaurant, as ppsed ________ the grand ne.(3)He ppsed ______ (answer) the private questin in public.【答案】(1)taking　(2)t　(3)answering　
完成句子　(4)Mst f the citizens ______________ an entertainment center in this area.大多数市民反对在这个地区建娱乐中心。【答案】(4)are ppsed t building　
3．depressing adj. 令人沮丧的，让人忧愁的　(P58)…Jim Smith lks at the smetimes depressing histry f epidemics fr clues abut hw we can create a mre psitive future withut epidemics.【翻译】吉姆·史密斯着眼于有时令人沮丧的流行病历史，为我们如何才能创造一个没有流行病的更积极的未来寻找线索。
【语言提升】　Lking fr a jb these days can be very depressing.如今求职有时会令人非常沮丧。depress vt. 使沮丧；使抑郁　depressed adj. 沮丧的；抑郁的　be depressed abut… 对……感到沮丧　
That qute reminded me t stay psitive, nt t becme depressed abut my situatin.那个引语提醒我要保持积极，不要因自己的处境而消沉。depressin n. 沮丧；抑郁　
【针对练习】　单句语法填空　(1)He was ________(depress) abut lsing all his mney.(2)That was ne f the mst ________(depress) experiences f my life.(3)Wmen wh eat plenty f fresh vegetables are far less likely t suffer anxiety r ________(depress).【答案】(1)depressed　(2)depressing　(3)depressin　
完成句子　(4)___________ was that I was blamed by my teacher.最让我沮丧的是，我被老师责备了。【答案】(4)What depressed me mst　
4．actual adj. 实际的，真实的　(P59)11，310 deaths were fficially recrded, but the actual number f deaths is prbably much higher.【翻译】官方记录的死亡人数为11 310人，但实际死亡人数可能要高得多。
【用法详解】　in actual fact事实上，实际上　I thught the wrk wuld be difficult. In actual fact, it’s very easy.我原以为这工作会很难，事实上却很容易。actually adv. 事实上，实际上　
【归纳拓展】　“事实上，实际上”的其他表达方式：in fact; in reality; in effect; as a matter f fact等。
【针对练习】　单句语法填空　(1)Many deaths frm heart disease are ________(actual) avidable.(2)He aplgized as sn as he realised what he had dne. ________ actual fact he wrte a nice little nte t me.【答案】(1)actually　(2)In　
完成句子　(3)____________ ____, the cuple are cleaning their huse in preparatin fr the new baby’s cming.事实上，这对夫妇正在打扫他们的房子，为新生儿的到来做准备。【答案】(3)As a matter f fact　
5．get ver克服；战胜　(P59)The virus was extremely infectius and the survival rate was as lw as 30% in sme areas, indicating that very few peple gt ver it.【翻译】该病毒传染性极强，一些地区的存活率低至30%，也就是说很少有人能康复。
【用法详解】　get ver克服；战胜；恢复　It tk me a very lng time t get ver the shck f her death.我过了很长时间才从她去世的震惊中恢复过来。If we can get ver ur present difficulties, then everything shuld be all right.如果我们能克服现在的困难，那么一切都会好起来。
get thrugh通过(考试)；(电话)接通；完成；熬过　Julia failed t get thrugh her mid-term exam.朱莉娅没有通过期中考试。I think yu can get thrugh the first tw chapters.我想你能完成前两章。
get n/alng with… 与……相处；进展　Since yu all live under ne rf, yu shuld learn hw t get alng with ne anther.既然你们都住在同一个屋檐下，你们应该要学习如何与彼此相处。
get dwn t (ding) sth. 着手(做)某事　With the electin cming t an end, the gvernment can get dwn t business.选举已结束，政府能够着手处理正事了。get up起床；站起来　
【针对练习】　单句语法填空　(1)We need t get dwn t ________(wrk) ut csts.【答案】(1)wrking　
完成句子　(2)I hate dealing with the bank ver the phne because it usually takes ages ________ the right persn.我讨厌在电话里和银行打交道，因为通常要花很长时间才能接通到合适的人。【答案】(2)t get thrugh t　
(3)If yu can just ___________ the shyness, just dn’t wrry abut being embarrassed.如果你能够克服害羞，就不用担心尴尬了。(4)Only when we fllw the laws f nature can we better ___________ it.我们只有遵循自然法则才能更好地与环境和谐共处。【答案】(3)get ver　(4)get alng well with　
6．glbe n. 地球，世界；地球仪　(P59) Cuntries will need t wrk tgether t d this because teamwrk amng natins acrss the glbe can save lives.【翻译】各国需要共同努力做到这一点，因为全球各国之间的团队合作可以拯救生命。
【用法详解】　acrss the glbe世界各地　The study included mre than 100 scientists frm acrss the glbe.这项研究包括来自世界各地的100多名科学家。
glbal adj. 全球的　glbal warming全球变暖　The threat f glbal warming will eventually frce the USA t slw dwn its energy cnsumptin.全球变暖的威胁将最终迫使美国减慢其能源消耗。glbally adv. 全球地；世界上　
【针对练习】　单句语法填空　(1)The scientists are carrying ut a study n the effects f ________(glbe) warming.(2)________(glbal), 75% f pr peple live in rural areas and mst depend n agriculture fr their living.【答案】(1)glbal　(2)Glbally　
完成句子　(3)________________ has psed a serius threat t the survival f animals such as plar bears.全球变暖对北极熊等动物的生存造成了严重威胁。【答案】(3)Glbal warming　
1．(P58)With recent press reprts drawing parallels between bird flu and killer epidemics f the past, Jim Smith lks at the smetimes depressing histry f epidemics fr clues abut hw we can create a mre psitive future withut epidemics.【翻译】最近的新闻报道将禽流感和过去的致命流行病进行了比较，吉姆·史密斯着眼于有时令人沮丧的流行病历史，为我们如何才能创造一个没有流行病的更积极的未来寻找线索。
【句式剖析】　句中“With recent press reprts drawing…”为with的复合结构，“recent press reprts”作with的宾语，drawing作宾语补足语。
【归纳拓展】　介词with的复合结构中，宾语由名词或代词充当，宾语补足语由形容词、副词、介词短语、动词不定式或分词充当。(1)with＋宾语＋ding(ding表主动或正在进行的动作)　With spring drawing near, trees turn green.随着春天的临近，树木变绿了。
(2)with＋宾语＋t d(t d表示将来的动作)　With a lt f prblems t slve, the president is having a hard time.有很多问题要解决，总统正处于一个困难的时期。(3)with＋宾语＋dne(dne表被动或已完成的动作)　He went t sleep happily with his tasks finished.任务完成后，他愉快地去睡觉了。
(4)with＋宾语＋介词短语/adj. /adv.He was s tired that he fell asleep with the light n.他太累了，开着灯就睡着了。
【针对练习】　单句语法填空　(1)T his surprise, the by came ut ________ the watch in his hand.(2)They sat tgether arund the table, with the dr ________ (clse).【答案】(1)with　(2)clsed　
(3)With the by ________(lead) the way, they easily fund the huse.(4)With a lt f wrk ________(d), he had t stay at hme.【答案】(3)leading　(4)t d　
2．(P59)Having killed up t 50 millin peple in 18 mnths, the Spanish Flu is believed t have been the mst severe epidemic in histry.【翻译】在18个月内，西班牙流感已导致5 000万人死亡，被认为是历史上最严重的流行病。【句式剖析】　本句中be believed t have dne意为“被认为已经做了某事”。
【归纳拓展】　sb. /sth. is believed t have dne可以替换为It is believed that sb. /sth. did sth.类似用法的还有：　It is said/reprted that…＝sb. /sth. be said/reprted t d sth.
【针对练习】　句型转换　(1)It is said that he invented the first cmputer.→He was said ________ ________ the first cmputer.(2)It is believed that she is an excellent artist.→She is ________ ________ ________ an excellent artist.【答案】(1)t invent　(2)believed t be　
(3)It is reprted that the scientist is wrking n a significant prject.→The scientist ________ ________ ________ ________ ________ n a significant prject.【答案】(3)is reprted t be wrking　
一、动词短语的概念　英语中有些动词可以和一些别的词构成短语，表达一个概念，其作用与一个单独的动词差不多，这种形式的组合，我们称为动词短语。例如：　
leave ff＝stp停止　make ut＝understand理解　ring up＝telephne打电话　arrive at＝reach到达　
二、动词短语的构成　1．“动词＋副词”，这种结构在英语中使用十分广泛，如果后面接代词作宾语时，只能放在动词和副词之间；如果接名词，可以放在动词和副词之间，也可以放在他们的后面。常见的有：put up, bring up, set up, g up, get up, shw up, lk up, make up, pick up, take up, clean up, cme up, cme n, g n, put n, turn n, get n, take ff, turn ff, put ff, give ut, wrk ut, find ut, run ut, break ut, give away, run away, thrw away, g ver, get thrugh, pull thrugh, g thrugh等。
Please put up the picture n the wall.请把画贴在墙上。He put n the cat, turned ff the light and went t see a mvie.他穿上大衣、关上灯去看电影了。
2．“动词＋介词”，其后可以跟名词、代词、动名词等。常见的有：lk after, take after, care fr, care abut, lk fr, lk at, arrive at, run int, break int, listen t等。She is a vlunteer. She is lking after the sick kid in the hspital.她是个志愿者，她正在医院里照看那个生病的孩子。Sme rbbers brke int a stre and tk away all the mney.几个强盗闯进了一家商店，拿走了所有的钱。
3．“动词＋副词＋介词”，常见的有：lk dwn upn/n, lk up t, cme up with, put up with, d away with, break away frm, lk frward t等。They lk frward t visiting Paris.他们盼望着参观巴黎。
We shuld respect thers and never lk dwn n them with their jbs, r disabilities.我们应该尊重他人，永远不要因为他们的工作或身体残疾而看不起他们。
4．“动词＋名词＋介词”，常见的有：take care f, pay attentin t, put an end t, give rise t, have a lk at等。Please take care f my dg when I leave fr Beijing.我动身到北京去时，请照看我的小狗。Pay attentin t yur prnunciatin, please.请注意你的发音。
单句语法填空　1．I’m nt ging t put up ________ their smking any lnger.2．When cmmunicating with thers, yu shuld pay attentin ________ yur attitude in rder t avid making thers feel uncmfrtable.【答案】1．with　2．t　
3．Things just didn’t wrk ________ as planned.4．When her dinner partner shwed ________， she pulled up a chair.5．The cmpany I wrk fr went ________ a rugh perid.6．He picked ________ the case and walked twards the exit.7．Jane finally brke away ________ her parents and gt an apartment f her wn.【答案】 3．ut 　4．up　5．thrugh　6．up　7．frm
8．We’ve had t put ________ ur wedding until September.9．Only a plitical slutin culd put an end ________ the vilence.10．He turned ff the televisin, put ________ his cat, and walked ut.【答案】8．ff　9．t　10．n　
Ⅰ．单词拼写　1．Several ________(factr) had cmbined t ruin ur plans.2．Yesterday’s unemplyment figures were ________(令人沮丧的).【答案】1．factrs　2．depressing　
3．Many events attended by the actr received ________(广泛的) media cverage.4．Sme analysts ________(估计) that fd prductin will need t be raised by 50 percent t maintain current levels.5．The rain had stpped and a star r tw was ________(看得见的) ver the muntains.【答案】3．widespread　4．estimate　5．visible　
6．Sme peple are nt s fnd f pizza. They ________(分类) it as junk fd.7．In this field yu dig a hle and in the hle yu ________ (埋藏) a gld piece.8．First, we need t identify ________(实际的) and ptential prblems.【答案】6．classify　7．bury　8．actual　
9．There is an enrmus ________(差异) in the amunt f sleep peple feel happy with.10．It must be stressed that this disease is very ________(罕见的).【答案】9．variatin　10．rare　
Ⅱ．单句语法填空　1．What is the mst ________(depress) day f the week?　2．Rich industrialised cuntries have swn the seeds f ________ (glbe) warming.3．He sat with his head ________(bury) in his hands.【答案】1．depressing　2．glbal　3．buried　
4．These huses lk the same but ________(actual) each f them is slightly different in size.5．Mst students are ________(ppse) t the plan f hlding the meeting n Saturday.6．He was surprised t find his rm ________(thrugh) cleaned and everything arranged in perfect rder.7．________(symptm) include a headache and sre thrat.【答案】4．actually　5．ppsed　6．thrughly　7．Symptms　
8．Scientists have tried t apprach the questin in a mre ________(system) way.9．The cmpany’s exprts have been increasing ________ (steady).10．The electin results have still nt been ________(fficial) annunced.【答案】8．systematic　9．steadily　10．fficially　
Ⅲ．完成句子　1．He _____________ in Cambridge University at present.据说，他目前正在剑桥大学学习。2．The cuple walked ut f the supermarket with ___________.这对夫妇走出超市，他们的孩子跟着他们。【答案】1．is said t be studying　2．their children fllwing them　
3．When yu break up with smebdy yu lve, that’s awful; it takes time ___________.当你和所爱的人分手了，那是件糟糕极了的事，而且需要很长时间来恢复。【答案】3．t get ver