1、读文清障原文呈现press/pres/n.新闻界；报界parallel/prlel/n.极相似之处；平行线epidemic/epIdemIk/n.流行病look through看穿；审核，浏览Epidemics throughout historyWith recent press reports drawing parallels between Bird Flu and a killer epidemic in the past,Jim Smith looks through the history of epidemics for clues about what the future
2、might hold.Section Lesson 2&Lesson 3读文清障原文呈现Since Bird Flu first appeared in 1997,it has taken more than a hundred lives.Many people fear it could be the next global epidemic,especially as scientists who studied tissuefrom the bodies of people who died of the 1918 Spanish Flu proved that BirdFlu is
3、a modern adaptationof the same virus.take ones life夺走某人的生命tissue/tIu/n.组织die of死于(饥饿、寒冷、疾病等身体内部因素)die from死于(车祸、地震、战争等外界因素)adaptation/dpteI n/n.变化；变种as.是as引导的时间状语从句，从句中含有两个who引导的定语从句，先行词分别是scientists和people,that.是that引导的宾语从句。读文清障原文呈现as long as在本句中意为“和一样长”。还可作连词用，表示“只要”，引导条件状语从句。it用作形式主语，代替不定式短语to lo
4、ok at.。look at此处表示“回顾”。throughout history all over historycauses and effects因果foresee/fsi/vt.预见Bacteria and viruses have been around since the beginning of life on Earth and many of todays diseases have existed as long as humans have.It is important to look at the spread of diseases throughout histo
5、ryto discover the causes and effects of epidemics,and hopefully,foresee and prevent them in the future.历史上的传染病病例第13段译文 随着近期的媒体报道将禽流感与过去的一种致命传染病画上等号，吉姆史密斯回顾了传染病的历史以寻找关于将来可能发生的情况的线索。自从禽流感在1997年首次出现，它已经夺去一百多人的生命。许多人担心它会成为下一个全球性的传染病，特别是在一些科学家研究了死于1918年西班牙流感的人的尸体组织后，证明了禽流感是同一种病毒的现代变异体。自从地球上有了生命，便有了细菌和病毒。
6、当今的很多疾病存在的时间和人类历史一样长。我们有必要回顾一下历史上疾病的传播情况，从而弄清楚传染病的起因和后果，并且希望将来能够预防它们的发生。读文清障原文呈现One of the earliest epidemics on record happened about 500550 AD when the Roman emperor at the time was attempting to rebuild the Roman Empire.This epidemic swept through North Africa,the Middle East and Europe.Scientist
7、s now guess that up to 50%of the areas population died from this epidemic making it one of the main causes of the fall of the Roman Empire21.on record正式记录的，公开发表的attempt to do试图做make an attempt to do sth./at doing sth.试图做某事rebuild/ribIld/vt.重建sweep through席卷；顺利通过up to达到(数量、程度等)；至多making it one of the
8、 main causes.是现在分词短语作结果状语。21 empire/empaI/n.帝国读文清障原文呈现22 symptom/sImptm/n.症状23 as one symptom was black spots.是as引导的原因状语从句。24 crowded adj.拥挤的 be crowded with挤满了25 a lack of缺乏，不足 for lack of由于缺乏，因缺乏26 routine/rutin/n.常规；惯例27 urban/bn/adj.城市的In the 1330s,the epidemic returned,this time in Asia.It spre
9、ad rapidly and became known as“The Black Death”as one symptom22 was black spots on the body23.The conditions in much of Asia and Europe war,crowded24 cities and a lack of25 basic health routines26 provided the perfect conditions for the disease to spread worldwide.In urban27 areas all over Europe,As
10、ia,Africa and the Middle East,up to one half of the population was lost to the Black Death.第47段译文 历史上有记载的最早的传染病之一发生在公元500550年，当时的罗马皇帝正在试图重建罗马帝国。这次瘟疫席卷了北非、中东和欧洲。现在科学家们猜测，当时那一地区百分之五十的人口死于那场瘟疫，使之成为罗马帝国衰落的主要原因之一。14世纪30年代，这种瘟疫又爆发了，这次是在亚洲。疾病传播迅速，被人们称为“黑死病”，因为一个病症是病人身体上出现黑色斑点。当时亚洲和欧洲的大部分地区都陷入这样的状况战争频发，城市拥挤
11、不堪，缺乏基本的健康体系，这种状况促进了瘟疫在全球范围内的蔓延。在欧洲、亚洲、非洲和中东的城市地区，有一半的人死于黑死病。读文清障原文呈现28 strike在此表示“爆发”。29 mourn/mn/vi.&vt.感到悲痛；表示哀悼left families mourning是“leave宾语宾补”结构，此处用现在分词作宾补。30 现在分词短语having killed.作原因状语。kill这一动作先于is believed动作发生，故用现在分词的完成式。Another epidemic that spread in similar conditions was the Great Flu Ep
12、idemic of 1918,also called the Spanish Flu.It struck28 near the end of the First World War and left families mourning29 worldwide.Having killed up to 50million people in 18 months30，读文清障原文呈现with a tendency to strike31 the young and fit rather than32 the old,the Spanish Flu is believed to 33 have bee
13、n the most acute34 epidemic in history.More people died of the flu than died in the war.Yet,somehow 35，it was forgotten by history until very recently when SARS became a cause for concern36.31a tendency to do sth.做某事的倾向strike在此表示“(疾病、灾害)侵袭，袭击”。32 rather than而不是33 Sb./Sth.be believed to.It is believe
14、d that.34 acute/kjut/adj.严重的；剧烈的35 somehow adv.不知怎么地，不知为什么36 concern nC，U关心的事，重要的事；关系，关联；担心，挂念读文清障原文呈现37 carrier/kri/n.带菌者38 pass.to.把传递给pass down流传；pass on流传，传递；pass by经过；pass away消亡The SARS epidemic began in 2002 with a lung disease in Guangdong Province and spread quickly after Dr Liu Jianjun,the
15、 carrier37，came to Hong Kong and passed the virus to38people who carried it to Canada,Vietnam and Singapore.第810段译文 另一次类似情况传播的传染病发作是1918年大流感，又被称为西班牙流感。它爆发于一战即将结束之时，使世界各地的许多家庭饱受丧亲之痛。西班牙流感在18个月的时间里夺去了多达5 000万人的生命，该病似乎专门袭击年轻力壮的人，而不是年迈之人，被认为是历史上最严重的传染病。被疾病夺去生命的人比在战争中丧生的人还要多。然而，不知什么原因它被历史遗忘了，直到最近“非典”成为人们
16、关注的焦点。“非典”始于2002年广东省的一起肺部疾病，在病毒携带者刘建军医生到达香港后该病迅速传播，他将病毒传染给其他人，而这些人又将病毒带到加拿大、越南和新加坡。读文清障原文呈现39case在此意为“事例，实例，病例，案例”。40 statistics/sttIstIks/n.统计资料；统计数字41 less impressive为比较级形式。42 alarming adj.惊人的，吓人的Over nine months,the number of global cases 39passed 8,000 and 774 people died.Although these statisti
17、cs40are much less impressive 41than those for the Spanish Flu,SARS was still very alarming42for a few key reasons.读文清障原文呈现43 prescription/prIskrIpn.处方44 tablet/tblIt/n.药片45 how to prevent是“疑问词to do”结构，作宾语。46 treating SARS patients为现在分词短语作定语。No one really knew much about SARS as it was completely new
18、.This meant that there were no prescription 43 drugs or tablets 44to treat it and doctors were not sure how to prevent 45 it either.Since most people had no natural defences against the disease,it was also harmful to the doctors and nurses treating SARS patients46.读文清障原文呈现47 since引导时间状语从句，主句用了现在完成进行
19、时。48 trial/traIl/n.实验49 prohibit/prhIbIt/vt.禁止50 outbreak n爆发51 without pause不停地52 put behind放在后面，拒绝考虑；忘却Since the SARS epidemic ended，scientists have been doing47 trials48 on treatments to prohibit49 any future outbreaks50.Modern communication technology and medical research techniques allow health
20、 experts all over the world to unite,share knowledge,and work together without pause51to help put SARS behind52 us.读文清障原文呈现Meanwhile53，governments worldwide have also underlined 54 the fact that 55thorough 56 and systematic 57 medical research on Bird Flu needs to lead to58a cure as soon as possible
21、.Countries will need to work together to do this as the SARS 53 meanwhile(meantime)adv.同时54 underline/ndlaIn/vt.表明重要性；强调55 that此处引导fact的同位语从句。56 thorough/r/adj.彻底的；细致的57 systematic/sIstmtIk/adj.系统化的58 lead to导致(to是介词)读文清障原文呈现epidemic proved how teamwork59 among nations can save lives.With all the in
22、ternational effort being made60，we have to have faith61 that there will be solutions62 in time to stop a Bird Flu epidemic in its tracks63.59 teamwork/timwk/n.协作；配合60 画线部分是“with名词现在分词”形式的with复合结构61 faith/feI/n.信心 have faith in对有信心62 solutions to do sth.做某事的解决方案63 stop sth.in its tracks终止，消灭第1114段译文
23、九个月后，全球的“非典”病例就超过了8 000例，死亡人数达到774人。虽然这些统计数字远远不及西班牙流感的数字那样令人震撼，但由于一些重要的原因，这次疾病的爆发还是给人们敲响了警钟。由于“非典”是一种全新的疾病，没有人真正了解它。这意味着没有医治它的处方或药物，医生也不知道如何预防“非典”。由于大多数人不具备对这种病的自然抗体，它对那些治疗非典病人的医护人员也有很大的危害。从“非典”疫情结束后，科学家们就在做治疗实验以防止它将来再次爆发。现代通讯技术和医学研究技术使全世界的医学专家们能够联合起来，分享知识，不停地通力合作，这有助于将“非典”抛弃在我们的身后。同时，世界各地的政府部门也强调对禽
24、流感进行彻底的和系统化的医学研究，以便尽早发现治疗方法。因为“非典”疫潮证明了不同国家之间的合作能够挽救生命，各国需要通过合作来做到这一点。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。.词义匹配1routine a.to officially forbid something2foresee ba usual or fixed way of doing things3underline cto build something again that has been damaged or destroyed4mourn dto delay an event or p
25、lan and decide that it should happen at a later date or time5rebuild eto behave towards someone or deal with something in a particular way6prohibit fto join together as a group7postpone ggreat trust or confidence in something orsomeone8unite hto feel or express great sadness,especially because of so
26、meones death9faith ito know about something before it happens10treat jto emphasise答案：15 bijhc 610 adfge.根据词性及汉语意思写出单词1n 物质2adj.荣幸的3vt.满足；迎合4n.进入，入学5n.储存6adj.充足的，充裕的7adj.城市的8n.实验9adj.剧烈的；严重的matterprivilegedcaterentrystorageampleurbantrialacute10_ n.症状11n.新闻界；报界12adj.彻底的；细致的13n.协作；配合14n变化；变种vt.使适应15n处
27、方v开处方16adj.系统化的n系统symptompressthoroughteamworkadaptationadaptprescriptionprescribesystematicsystem.补全短语1consist 由组成2be responsible 对负责3be related 和有关4put 推迟5get down 着手，开始做6straight 立刻，马上7go 经历；仔细检查8wipe 彻底毁灭；抹去(旧事)offortoofftoawaythroughout9up 至多有，高达；直到；适合，胜任10look 浏览11 record 记录在案的12rather 而不是13a
28、lack 缺乏，缺少14be harmful .对有害15stop sth.its tracks 终止；消灭tothroughonthanoftoin1Having 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 to have been the most acute epidemic in history.西班牙流感在 18 个月的时间里夺去了多达 5 000 万人的生命
29、，它有传染年轻人和身体健康的人而不是老年人的倾向；西班牙流感被认为是人类历史上最严重的传染病。句式分析 having killed up to.为现在分词的完成式作状语。佳句赏析 由于提前完成了工作，我被允许回家。Having finished my work ahead of time,I was allowed to go home.2.Yet,somehow,it was forgotten by history until very recently when SARS became a cause for concern.然而，不知什么原因它被历史遗忘了，直到最近，“非典”成为了人们
30、关注的焦点。句式分析 until very recently when.作时间状语。佳句赏析 直到读了你的来信我才知道事实真相。I didnt know the truth until I read your letter.3It struck near the end of the First World War and left families mourning worldwide.它爆发于第一次世界大战即将结束之时，使全球的家庭陷入了一片哀声之中。句式分析“left宾语宾补”结构。佳句赏析 她任凭她的宝宝哭个不停。She left her baby crying.Look at the
31、 pictures and answer the questions.1It is May,2009,in North America.Why are they wearing masks in the warm May?_Because there was an outbreak of A(H1N1)flu in this area.2What are the masks used for?_3Besides A(H1N1),which of the following diseases can be epidemics?AIDS,cancer,flu,headache,heart dise
32、ase,stomachache.They are used to prevent people from being infected.AIDS and flu.Read for the details1Read the text to find how the passage developed?AIn order of time.BIn order of space.CIn order of logic.DIn order of place.答案：A2Read the text again and arrange the sentences in order of time.AOne of
33、 the earliest epidemics swept through North Africa,the Middle East and Europe.BExperts united to stop SARS spreading.CThe Spanish Flu killed up to 50 million people in 18 months.DSARS caused 8,000 diseased and 774 killed.E“The Black Death”spread in Asia.答案：AECDB3True(T)or false(F)Flu kills millions
34、of people every year.()Most diseases are very new.()Epidemics have affected historical events.()It takes years for a disease to spread worldwide.()Epidemics can wipe out up to half of the population in urban areas.()答案：TTTTT.Read for the structureRead the text carefully and then fill in the chart wi
35、th the information in the text.Epidemics throughout historyTimeNames of theepidemicsDetails of the epidemics500550 ADNotmentionedAttacked areas:North Africa,_ and EuropeDeaths:up to 50%of the population in this area Influence:the fall of _the Middle Eastthe Roman EmpireIn the 1330s_Symptom:_ on the
36、body Deaths:up to _ of the population was killed.1918The GreatFlu Epidemic,or the Spanish Fluime to break out:near the end of _Duration:18 months Deaths:_ Features:mostly attacked rather than the oldThe BlackDeathblack spotsone halfthe First World Warup to 50millionthe young and fit2002SARSBegan in
37、GuangdongSpreading:a carrier passed _ to other peopleDeaths:774 people diedIts harmful to doctors and nurses treating SARS because most people had no _ against it.the virusnatural defense1cater(P36)(1)vi.满足；迎合cater for 满足需要cater to 迎合Vegetarians are well catered for in this hotel.素食者的需要在这家饭店得到了很好的满足
38、。They only publish novels which the mass market.他们只出版迎合大众市场的小说。cater to(2)vi.&vt.(为社交活动)提供饮食，承办酒席cater for sb./sth.为提供饮食或服务Most of our work now involves weddings.我们现在的工作多半是承办婚宴。catering(for)2treat(P36)(1)n.&vt.招待，款待，请客be ones treat 由某人请客treat sb./oneself to sth.用某物招待某人/自己Ill treat you to an ice-crea
39、m in return for your help.作为对你帮助的回报，我要请你吃冰淇淋。This is today,so Ill pay for everything.今天我请客，一切账由我来付。my treat(2)vt.对待；看待treat sb./sth.(with/as/like.)以的态度/方式对待treat sb.well/badly待某人好/不好treat.as/like 把当作一样对待They _ the orphan from Wenchuan one of the family.他们把那个来自汶川的孤儿当作家里的一员看待。treatedas/like(3)vt.治疗，医治
40、be treated for.因而接受治疗treat sb.(for sth.)(with sth.)(用)医治某人(的病)I got the news that she sunstroke.我得知消息她因中暑而接受治疗。The doctor treated Mike his headache a new drug but didnt cure him of it.医生用一种新药给迈克治疗头痛，但没把他治好。was treated forforwith3postpone vt.推迟；延期(P37)postpone.until/to.把推迟到时候postpone doing sth.推迟做某事I
41、t has been decided the meeting should be postponed until/tonext Saturday.已经决定，会议延期到下星期六举行。It was an unpopular decision to postpone (build)the new hospital.延迟建新医院的决定是不得人心的。building巧学助记 名师点津 除了 postpone 以外，表示“推迟，延期”的单词或短语还有 delay,put off；其后接动词作宾语时，要用动名词而不用不定式。4I decided not to put off studying(as I no
42、rmally do！)and got up early every morning to get down to work straight away.(P37)我决定不推迟学习(就像我往常所做的！)，每天早上早起立即着手工作。straight away/off 立刻，马上，毫不犹豫My teacher asked me to go to his office after class straight away/off.老师让我下课后立刻去他办公室。I wrote him an e-mail and clicked to send it straight _.我给他写了封电子邮件，并马上点击发
43、送了出去。名 师 点 津 表 示“立 刻，马 上”的 词 语 还 有：at once,immediately,directly,right now,right away,in no time。away/off5If I didnt understand something,Id write it down and then bring it up in class with my teacher.(P37)如果有不明白的地方，我会记下来，然后在课上向我的老师提出来。bring up 提出；抚养，养育；呕吐He brought up a practical plan in the meeting
44、,which brought down the cost of production.他在会上提出了一个切实可行的计划，从而降低了生产成本。His parents died when he was born and he _ by his uncle.他出生时父母便去世了，他是被他的叔叔抚养大的。was brought upHe was drunk and _ what he had eaten at midnight.他喝醉了，半夜里把吃的东西都吐了出来。bring in 请做；让参与；引入；提出(新法案)；赚得；挣bring down 减少；打落；打垮；击败bring back 把送回；恢
45、复；使想起bring about 引起；导致(lead to/result in)brought upYour article brought back sad memories for me.你的文章使我想起了伤心的往事。The rusults of the examinations always _ the worry and anxiety of students.考试结果总是引起学生的焦虑和烦恼。bring about6She was very helpful and she went through all of the things that would probably come
46、 up in the exam.(P37)她(老师)给了我很大的帮助，她会详细研究可能会在考试中出现的所有内容。go through 检查；经历；通过；穿过；用完；完成写出下列句中 go through 的含义Our plan on how to spend our summer holidays didnt go through._Not until he went through real hardship did he realize the love we have for our families is important._通过经历As you go through this bo
47、ok,you will find that each of the millions of people who lived through World War had a different experience._The rope is too thick to go through the hole._The police went through the three suitcases but didnt find anything valuable._Have you gone through all your money？_完成穿过检查用完(1)go against 违背；违反go
48、 out 出去；熄灭go over 复习；仔细检查go up 上涨；上升；攀登(2)break through 冲破；突破get through 通电话；顺利通过(考试等)；完成look through 快速查看；浏览pull through 帮康复；协助完成(十分困难的事)(2014四川高考书面表达)Our teacher chose many important exercises for us,and I the language points at the same time.我们的老师为我们选了很多重要的习题，同时我复习语言点。Went over 7Since the SARS ep
49、idemic ended,scientists have been doing trials on treatments to prohibit any future outbreaks.(P38)从非典疫情结束后，科学家们一直在做治疗实验以防止将来的再次爆发。prohibit vt.禁止；阻止prohibit(sb.s)doing sth.禁止(某人)做某事prohibit sb.from doing sth.禁止/阻止某人做某事It was the bad weather that prohibited their going to the science museum.是糟糕的天气阻止了
50、他们去参观科学博物馆。Some people think that its necessary to prohibit peoples using mobile phones in some places.Some people think that its necessary to prohibit people fromusing mobile phones in some places.Some people think that its necessary to prevent/stop/keep people from using mobile phones in some plac
51、es.一些人认为有必要禁止人们在一些场所使用手机。联想发散“禁止/阻止某人做某事”表达法荟萃：8With 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 tracks.(P39)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法来彻底消灭禽流感。faith n信心；信仰；信任；诺言(1)have faith in 相信lose faith in 失去信任(2)faithf
52、ul adj.忠诚的；可信任的be faithful to 忠实于；忠诚于He is always telling lies,so nearly all the people lose faith inhim.他总是撒谎，因此几乎所有的人都不信任他了。There are a lot of difficulties in front of us,yet we still _ victory.我们面前有很多困难，然而我们对胜利仍充满信心。His translation manages to be _(faith)to the spirit of the original.他的译文做到了忠于原文的精
53、神。havefaith infaithfulIt struck near the end of the First World War and left families mourning worldwide.它爆发于一战即将结束之时，使世界各地的许多家庭饱受丧亲之痛。本句中含有“leave宾语宾补”结构，宾补由现在分词充当，leave 意为“使处于某种状态”。“leave宾语宾补”结构的常见形式有：(1)“leave宾语形容词/名词”，形容词或名词表示宾语所处的状态。Her parting words left him empty and alone.她分手时说的话让他感觉空虚孤独。His
54、parents both died last year,leaving him an orphan.他的父母去年双双去世，使他成了孤儿。(2)“leave宾语现在分词”，现在分词表示该动作与宾语之间是主动关系，并有正在进行的含义。It is wrong of you to leave the machine (run)你使这台机器一直在运转是不对的。(3)“leave宾语过去分词”，过去分词表示该动作与宾语之间是被动关系。The guests left most of the dishes _(untouch),because they did not taste delicious.客人没有
55、动大部分菜，因为这些菜不可口。runninguntouched(4)“leave宾语(带 to)不定式”，不定式表示该动作与宾语之间是表示将来的主动关系。We hurriedly ended our meeting,leaving many problems _(settle).我们赶紧结束了我们的会议，留下许多问题未解决。tobe settled1第一段中 parallel 用的恰到好处，形象地说明了禽流感与过去的一种致命传染病之间的关系。试完成句子：They run from northeast to southwest,almost _.他们从东北一直跑到西南，几乎和东海岸平行。2第二段
56、第二句 especially 的使用刻画了人们对禽流感的担忧。高级词块 a modern adaptation of the same virus 简洁直观地描述了这一病毒的危害性。adaptation 的动词形式是_，形容词形式是_。parallel to the east coastadaptadaptable3第三段使用 as long as 表明病毒存在由来已久，后文 humans have 为省略句，补充完整为。4第四段最后一句中的 swept through 写出了传染病的严重性。试完成句子：It didnt take long for rumors to _.不久谣言就传遍了全城
57、。humans have existedsweep throughthe town5第五段中 up to 50%,the fall of the Roman Empire 真实地展现了传染病的危害程度，尤其是 fall 用词恰到好处。试完成下面句子：Fashions come and go,reputations _.潮流来来去去，名声起起伏伏。6 第 八 段 最 后 一 句 中 的 struck,left families mourning worldwide 用词形象、生动地展现了西班牙流感的突然爆发及给人们带来的惨痛影响。rise andfall7第十一段列举的数字 8,000、774
58、及 impressive 的使用指出非典造成的巨大影响。much less impressive 为比较级，much 在此修饰比较级，表示“更得多”以加强语气的表达效果。常用来修饰比较级的副词或短语还有_等。8第十二段第一句中 really 用的恰到好处，非典是一种全新的疾病，因此没有人“真正”了解它。试翻译下面的句子：I really didnt want to disturb you,but I had to._still,even,rather,far,byfar,abit,a little,a lot我真的不想打扰你，但我又不得不。课文标题“Epidemics throughout h
59、istory”直接点明了文章的主题“历史上的传染病病例”。本文的写作结构是“总分总”。1第一段点明本文将回顾历史上的一些传染病。2第二段首句引出禽流感事件及危害，随后引出禽流感与历史上的西班牙流感之间的关系。4第四段至第十三段采用时间顺序叙述了历史上的一些传染病的特点及危害情况。文中出现的时间过渡词有：about 500550 AD,In the 1330s,1918,in 2002 等。5最后一段作出总结，指出各国需要通过合作来找出彻底消灭禽流感的解决方案。课时跟踪检测_.单句语法填空1I shall postpone _(make)a decision till I learn full
60、details.2Although the authorities prohibit people climbing up that section of the Great Wall,some people still visit that area.3All courses in this college are designed to cater the market needs.makingfromto4Dont expect him to approve of your design straight _.5As a matter of fact,he objects to bein
61、g treated _ a child.6While I am away,Ill leave my neighbour _(look)after my cat.away/offlike/asto look.完成句子1I cleaned the flat,_.我打扫了整个公寓，这让我觉得自己很了不起。2I feel you _.我觉得你永远不应对自己失去信心。which left me feeling proudshould never lose faith in yourself3There is no point in _ when we are considering him for employment.我们考虑雇用他时，没必要提起他的过去。4We _ I bought last week.我们已经用完了我上周买的所有的信封。5Our school has decided to _ because of the heavy rain.因为雨太大，我们学校已经决定推迟举行运动会。bringing up his pasthave gone through all these envelopespostpone holding the sportsmeeting “课时跟踪检测”见“Unit 21 课时跟踪检测（十三）”(单击进入电子文档)谢谢 观 看