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Unit 3 Back to the past一、阅读理解Everyone knows that death is natural, but do you have any idea of the process of dying? Modern scientists divide the process of dying into two stages clinical or temporary death and biological death. Clinical death occurs when the vital organs, such as the heart or lungs, have stopped functioning, but have not suffered permanent damage. The organism can still be saved. Biological death occurs when changes in the organism lead to the “breaking up” of vital cells and tissues. Death is then unchangeable and final.Scientists have been seeking a way to prolong the period of clinical death so that the organism can remain alive before biological death occurs. The best method developed so far involves cooling the organism, bined with narcotic (麻醉) sleep. By slowing down the bodys metabolism (新陈代谢), cooling delays the processes leading to biological death.To show how this works, scientists performed an experiment on a six-year-old female monkey called Keta. The scientist put Keta to sleep with a narcotic. Then they surrounded her body with ice-bags and began checking her body temperature. When it had dropped to 28 degrees the scientists began taking blood out from an artery (动脉). The monkeys blood pressure decreased and an hour later both the heart and breathing stopped: clinical death set in. For twenty minutes Keta remained in this state. Her temperature dropped to 22 degrees. At this point the scientists pumped blood into an artery in the direction of the heart and started artificial breathing. After two minutes Ketas heart became active once more. After fifteen minutes, spontaneous (自发的) breathing began, and after four hours Keta opened her eyes and lifted her head.After six hours, when the scientists tried to give her a penicillin (青霉素) injection, Keta seized the syringe (注射器)and ran with it around the room.Her behavior differed little from that of a healthy animal.1.For a person who suffers from the clinical death _.A. heisstillverymuchaliveB. hecannotavoidfinaldeathC. hismostimportantorgansaredamaged foreverD. he still has the possibility of getting back to life2.Scientists try to make the time of clinical death longer in order to _.A. cooltheorganismB. delaytheingofbiologicaldeathC. slowdownthebodysmetabolismD. bring vital cells and tissues back to active life3.The text mainly talks about _.A. clinical death and biological deathB.an experiment on a monkeyC. the meaning of deathD. the process before death4.From the underlined sentence in the last paragraph we can know that _.A. Keta was impoliteB. Keta was healthyC. Keta was illD. Keta was crazy【文章大意】本文主要叙述了为了延缓生理死亡的到来，科学家尽量延长临床死亡的时间。1.D 【解析】细节理解题。由文章第一段内容“Clinical death occurs when the vital organs, such as the heart or lungs, have stopped functioning, but have not suffered permanent damage. The organism can still be saved”可知，一个临床死亡的人还有可能活过来，故选D。3.A 【解析】主旨大意题。文章第一段提出了人类死亡的两个阶段：临床死亡和生理死亡；第二段提出科学家们想办法延长临床死亡；第三段通过用猴子做实验来验证延长临床死亡的方法，故本文主要论述了临床死亡和生理死亡，选A项。4.B 【解析】推理判断题。结合文章最后一句“Her behavior differed little from that of a healthy animal.”（她的行为无异于健康动物的行为），可推知划线部分句子说明Keta是健康的，故选B项。二、词汇练习。1. 讲座 n2. take over3. pour4. flee5. 灾难n6. 毁坏v7. 文化的a8. beneath9. document10. extreme11. 典礼n12. stand in ones way13. vast14. corrupt15. erupt16. mercial17. march18. _ a new flata fancy _装潢19. seek fame and _bee very _富裕20. Dont _ about being alone.Dont tell me _ about this.抱怨21. be _ of protecting the environmentraise the _of saving water意识22. a _ to the problemCan you tell me how to _the problem?解决23. get stuck in the _on the _ road烂泥；烂泥的24. e to _bee very _权力，强大的25. _ teenagers how to behavereceive a good _教育三、完形填空One day when I was 13，my family was working in the fields to clear away old brush when somehow the electric fence sparked(冒火花)and _1_ a fire.We didnt see the fire _2_ it had blocked the way to the only gate.I _3_ to jump over the fence to safety but the fire was all around us.I could only watch in _4_ as the flames continued to rise.Little did I know that my father had once been a(n)_5_ and knew what to do. _6_ with only a pump sprayer，buckets, and his boots，he _7_ down to the nearby pond，filled the buckets and the sprayer，and began spraying the _8_ while my older brother threw water with the buckets.Soon the wind _9_，however，and with the Fire Department too far away to arrive in time，my father began to stamp(踩灭) out the flames as he moved to the _10_，so that my family was able to move inch by inch toward the gate._11_ he arrived at the gate，he jumped into the truck，rolled up the windows，and drove _12_ the fire.Then the fire was put out，and my mother was looking at my father with her _13_ eyes.After that，my father began telling us about his days as a firefighter，and my brother and I became _14_，asking him what other jobs he had done before he _15_.Well，it turned out that he had done just about _16_ except brain surgery!He had been in the military as a carpenter，carpet layer，and an electrician，and had built B2 bombers before being poisoned in an accident that had _17_ him to retire.My father has a blood disorder as a result of that _18_，but that hasnt stopped him from being a fulltime electrician.To all those people whose fathers have worked in the military and in other dangerous jobs, be _19_ of them，and remember that some day their _20_ might save your life.1A.prevented BpermittedCwitnessed Dstarted 2A.because BunlessCafter Duntil3A.wanted BmanagedCpromised Dhappened4A.anger BhorrorCexcitement Dembarrassment5A.carpenter BelectricianCfirefighter Deducator6A.Armed BSatisfiedCShared DIdentified7A.slid BfellCdashed Dwalked8A.trees BgrassCflames Dflowers9A.died off Btook onCturned out Dpicked up10A.fence BtruckCfurniture Dbucket11A.If BOnceCSince DWhile12A.through BalongCover Dacross13A.high BwideCfast Dfar14A.curious BsuspiciousCconcerned Danxious15A.moved BresignedCretired Dsuffered16A.everything BnothingCsomething Danything17A.allowed BencouragedCinvited Dforced18A.fire BaccidentCattempt Dexplanation19A.afraid BproudCcareful Dashamed20A.culture BlearningCskills Dlanguages【解题导语】本文作者通过讲述火灾中父亲扑灭大火的故事，告诉我们曾经在部队和做过其他危险工作的父亲将来某一天可能会用他们的技能拯救我们的生命，我们应为他们感到骄傲。【核心词汇】as a result of由于，因为(其后跟宾语)be proud of为感到骄傲1D根据该句中的“the electric fence sparked(冒火花)and _1_ a fire”可知，此处表示一场火灾开始了。D项意为“开始，使开始发生”，符合语境。prevent“阻止”；permit“允许”；witness“目击”。2D直到大火堵住了通往唯一的门的路，我们才发现大火。此处考查“not.until.”结构。3A根据语境可知，“我”想(wanted)跳过篱笆，到达安全地带，可是大火包围了我们。manage“设法做成”；promise“许诺”；happen“发生”。4B由上文可知，大火包围了我们，“我”只能惊恐地看着火焰继续上升。in horror“惊恐地”；in anger“生气地”；in excitement“兴奋地”；in embarrassment“尴尬地”。5C根据第二段第一句中的“my father began telling us about his days as a firefighter”可知，父亲曾经是一名消防员。carpenter“木匠，木工”；electrician“电工”；educator“教育工作者”。6A本题考查be armed with的省略结构作状语，意为“用装备或武装”，故选A项。satisfied“满意的，满足的”；shared“共有的”；identified“可辨认的”。7C根据语境可知，父亲应该是冲(dashed)向最近的池塘。slide“滑行”。8C根据上下文可知，此处指开始用水喷向火焰(flames)。9D根据语境可知，此处表示然而很快，风又变强了。pick up“变大，变强”，符合语境。die off“相继死去，先后死去”；take on“呈现，开始具有(某种特征、面貌等)”；turn out“结果是，证明是”。10B根据下文中的“he jumped into the truck”可知，父亲走向卡车。11B考查连词。A项意为“如果”，引导条件状语从句；B项意为“一就，一旦”，引导时间状语从句；C项“自以来，因为，既然”；D项“当时候，尽管”。由上下文可知，此处指父亲一到达大门，就跳进了卡车里。故选B项。12A根据语境可知，父亲开着卡车从火中穿过。through“通过，穿过”，表示运动发生在某物的空间内；along“沿着”；over“在上面”；across“从一边到另一边，横过”，表示动作发生在物体的表面。13B根据语境可知，父亲开着卡车从火中穿过，火最终被扑灭了，所以母亲睁大(wide)眼睛看着父亲。14A根据下文中的“asking him what other jobs he had done”可知，我们是很好奇的(curious)。suspicious“怀疑的，猜疑的”；concerned“(与某事)有关的，有牵连的”； anxious“焦虑的，不安的，担心的”。15C根据语境可知，我们问父亲在退休(retired)之前还做过其他什么工作。下文中的“to retire”也是提示。16A根据第三段对父亲退休前工作的描述可知，父亲做过很多事情，所以此处指除了做脑外科手术之外，父亲几乎什么都做过。everything except“除了之外什么都”符合语境。17D由上下文可知，那场事故迫使(forced)父亲退休。18B根据上下文可知，此处指那场事故(accident)。attempt“尝试”； explanation“解释”。19Bbe proud of “为感到骄傲”符合语境。ashamed“(因自己所做的事而)羞耻的，内疚的，惭愧的”。20C根据上文可知，此处指他们的技能(skills)有朝一日可能拯救你的生命。四、短文语法填空。Sending gifts varies greatly from country to country.In Australia, Canada, the United States 1. European countries，sending gifts is rarely expected. While seen as a nice gesture，it is more important to avoid 2. (give) highly personal gifts such as clothing.When visiting the home of a colleague from one of these 3. ( country)，it is normally appropriate to bring a gift to the hostess.In America, 4. (expense)gifts are definitely out.A good 5. (choose) is to take the deserving person to dinner，or to 6. entertainment or a sporting event. 7. the contrary，gift giving is a traditional custom in Japan.In Japan the proper gift is thought 8. (express)the givers true friendship，gratitude and respect far 9. (well) than words can.So if you plan to visit Japan or to have any Japanese visit you here，be prepared.Australia is known for its friendliness and informality.So modest gifts，such as a diary，a paperweight，or a coffee cup might 10. (present)to a friend.At a trade show，Tshirts，ties，baseball caps，or a pin may be appropriate souvenirs.Anything more than these types of gifts could cause embarrassment.【语篇解读】本文是一篇说明文。介绍了美国、日本、澳大利亚等国不同的送礼物习惯。1and考查连词。根据空前的“Australia，Canada，the United States”和空后的“European countries”可知，空处前后为并列关系，故用并列连词and。2giving考查动名词。avoid doing sth.为固定搭配，意为“避免做某事”，故填giving。3countries考查名词的数。根据空前的these可知，可数名词country应当用复数形式。4expensive考查形容词。空处修饰后面的名词gifts，故用形容词形式。5choice考查名词。根据空前的形容词good和不定冠词A可以判断，空处应用名词的单数形式。6an考查不定冠词。该处泛指“一次娱乐活动”，entertainment的读音以元音音素开头，故用an。7On考查固定搭配。on the contrary为固定搭配，意为“与此相反”。8to express考查动词不定式。此处表示“在日本，恰当的礼物被认为表达了送礼物者真正的友谊”。be thought to do sth.为固定搭配，意为“被认为做了某事”，故用动词不定式。9better考查比较级。根据空后的than可知，该处用well的比较级。10be presented考查被动语态。该句主语modest gifts和动词present之间是被动关系，故用被动语态。
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