新概念英语第二册Lesson75课件

新概念英语第二册Lesson75新概念英语第二册Lesson75saveoursoulssaveoursouls2S.O.S.求救信号很多人都以为S.O.S.是由一些单字的首字母缩写而成，如SaveOurSouls（拯救我们的生命！）SaveOurShip（拯救我们的船只！）等。你认为真是这样的吗？S.O.S.求救信号3新概念英语第二册Lesson75课件4新概念英语第二册Lesson75课件5新概念英语第二册Lesson75课件6bethickwith…充满……的Theairwasthickwithsmoke.bethickwith…7signaln.信号;暗号/v.标志;发信号signallamp信号灯通信密码signalcode代码危险信号adangersignalsignalto/(打手势或发声音)向…示意;发信号Therescueteamsignaledtothevictimstogetonaboard.救援队伍示意灾民们上车/船/飞机….signaln.信号;暗号/v.标志;发信号sig8stampv.踩，跺stampalbum集邮册

stampcollector集邮者stampout扑灭，踩灭Stampon把…印在(或打、刻)在…上；使铭记：Hestampedoutcigarettebutt.Hestamphisnameonallhisbooks.stampv.踩，跺stampalbum集邮9Hehadsurvivedheartbypasssurgery.他在心脏搭桥手术中活了下来。存活peoplewhoarestrugglingtosurvivewithoutjobs.…挣扎着以挺过失业的人们。挺过Noonesurvivedtheaircrash.无人在这次空难中幸免于难。幸存Mostwomenwillsurvivetheirspouses.大多数女性比她们的配偶活得长。比…活得长surviveHehadsurvivedheartbypasss10helicoptern.

直升飞机Thehelicoptertooktheonlysurvivorfromthefirescene.直升机带走了火灾现场的唯一幸存者。helicoptern.

直升飞机Theheli11QuestionsHowdidshegethelp?Whathappenedtotheyoungwoman?Howdoyouthinkofthewoman?QuestionsHowdidshegethelp?12Howdidshegethelp?Shesentasignaltotheplanebystampingout“SOS”insnow.Whathappenedtotheyoungwoman?Aplanecrashedandshewasleftonsnow.Howdoyouthinkofthewoman?Shewaslucky/strong/smart/Howdidshegethelp?Whathapp13TextText141.Whydidtheplanecrash?Becausetheplaneflewoffitscourse.

飞离航线Coursen.科目；课程；道路；路线，航向；一道菜1.Whydidtheplanecrash?Bec152.Howmanypeoplewerethereinthehelicopter?

PilotYoungwomanTwobabydaughters2.Howmanypeopleweretherei16Whatwastheenvironmentlike?Itwasmiddlewinter,therewerethicksnowontheground,anditwasgettingdark.Thewomanwasmilesawayfromthenearestvillage.Itwasterriblycoldduringthenight.Whatwastheenvironmentlike173.Howdidthewomankeepherchildrenwarm?Sheputthechildrenintoasuitcaseandcoveredthemwithalltheclothesshecouldfound.3.Howdidthewomankeepherc184.Howdidthewomanspendthenight?Shekeptasnearasshecouldtothechildrenandeventriedtogetintothecaseherself.4.Howdidthewomanspendthe195.Whatideacametothewoman?Shewantedtosendasignaltothepassingplane.6.Howdidthewomansendthesignal?Shestampedouttheletter“SOS”inthesnow.5.Whatideacametothewoman?207.Whatdidthepilotdotorescuethewoman?Hesentamessagebyradiotothenearesttown.7.Whatdidthepilotdotores218.Weretheyrescuedatlast?8.Weretheyrescuedatlast?22Phrases:Phrases:23alightpassengerplaneflyoffcoursetwobabydaughtersthemiddleofwintermilesawaygrowdarkturnintoalightpassengerplane24put…inside…cover…with…asnearasshecould/possibleearlynextmorningpassingoverheadsendasignalstampoutbyradiolongbeforearriveonthescenethesurvivorsof…put…inside…cove25beforelong不久，很快多与动词的过去时或将来时连用Theworkwillbefinishedbeforelong.longbefore很久以前long常与过去时或过去完成时连用，跟从句时也可用在一般现在时的句子中Shesaidthatshehadheardofitlongbefore.Itwillbelongbeforehearrives.还要等很久他才能到达。beforelong不久，很快26Longago表示“很久以前”指的从现在算起的很久以前，通常与一般过去时连用。Imethimlongago.我很久以前就认识他了。Beforelong不久以后，很快（指从现在算不久以后）Iwillbebackbeforelong.不久我就回来。Longago表示“很久以前”指的从现在算起的很久以前27Specialdifficulties:Page352Specialdifficulties:Page35228growturngogetcomefall变成

grow逐渐变得比get更正式

turn把（状态，性质）改变（成）；使颜色变化

go变成（某种状态）通常是不好的变化

get成为（某种状态）口语中

come变成，成为，达到cometruefall变成…的状态turntopage352growturngogetcome29Exercise:Exercise:30用所给词的适当形式填空。1.TomandMary______(come)toChinalastmonth.2.Mike______(notgo)tobeduntil12o’clocklastnight.Sohe______(get)uplate.3.Mary_______(read)Englishyesterdaymorning.4.There_______(be)noonehereamomentago.5.I______(call)Mikethismorning.用所给词的适当形式填空。316.Ilistenedbut______(hear)nothing.7.Tom______(begin)tolearnChineselastyear.8.Lastweekwe______(pick)manyapplesonthefarm.9.Mymother_______(notdo)houseworkyesterday.10.ShewatchesTVeveryevening.Butshe______(notwatch)TVlastnight.6.Ilistenedbut______(hear3211．____yourfather___(go)toworkeverydaylastyear?12．--Whattime___you___(get)toBeijingyesterday?--We___(get)toBeijingat9:00intheevening.13.What____(make)himcry(哭)justnow?14.Lastyeartheteacher____(tell)usthattheearthmovesaroundthesun.15.There____(be)atelephonecallforyoujustnow.

11．____yourfather___(go)3316.There___(be)notenoughpeopletopickapplesthatday.17.There_____(benot)anyhospitalsinmyhometown(家乡)in1940.18.There____enoughmilkathomelastweek,wasn’tthere?19.Eli____(move)toJapanlastweek.20.–When____you_____(come)tochina?Lastyear.16.There___(be)notenoughp3421.Didshe________(have)supperathome?22.Jack________(notclean)theroomjustnow.23._____(be)itcoldinyourcityyesterday?24.Howmanypeople____(be)thereinyourclasslastterm?25.It______(be)hotyesterdayandmostchildren_______(be)outside.26.There________(be)afootballmatchonTVyesterdayevening,butI______(have)notimetowatchit.21.Didshe________(have)su35请用正确动词形式填空。1.I______(have)anexcitingpartylastweekend.2._______she______(practice)herguitaryesterday?No,she_________.3.What______Tom______(do)onSaturdayevening?He______(watch)TVand______(read)aninterestingbook.4.Theyall____(go)tothemountainsyesterdaymorning.

请用正确动词形式填空。365.She____(notvisit)herauntlastweekend.She_____(stay)athomeand_____(do)somecleaning.6.When_____you_____(write)thissong?I______(write)itlastyear.7.Myfriend,Carol,____(study)forthemathtestand______(practice)Englishlastnight.8.______Mr.Li_____(do)theprojectonMondaymorning?Yes,he______.9.How______(be)Jim'sweekend?It_____(benot)bad.5.She____(notvisit)heraun3710.________(be)yourmotherasalesassistantlastyear?No.she__________.句型转换LastweekIreadanEnglishbook.否定句：__________________________________一般疑问句：__________________________________肯定/否定回答：__________________________________对划线部分提问：__________________________________10.________(be)yourmother38实验4

罐头食品商业无菌的检验

GB/T4789.26-2003实验4

罐头食品商业无菌39术语和定义：商业无菌的定义：罐头食品经过热杀菌以后，不含有致病的微生物，也不含有在通常温度下能在其中繁殖的非致病性微生物，这种状态称作商业无菌。胖听的定义：由于罐头内微生物活动或化学作用产生气味，形成正压达到，使一端或两端外凸的现象。术语和定义：商业无菌的定义：罐头食品经过热杀菌以后，不含有致40泄漏的定义：罐头密封结构有缺陷，或由于撞击而破坏密封，或罐壁腐蚀而穿孔致使微生物侵入的现象。密封的定义：食品容器经密闭后能阻止微生物进入的状态。泄漏的定义：罐头密封结构有缺陷，或由于撞击而破坏密封，或罐壁41低酸性罐头食品的定义：除酒精饮料以外，凡杀菌后平衡pH值大于4.6、水活性值大于0.85的罐头食品，原来是低酸性的水果、蔬菜或蔬菜制品，为加热杀菌的需要而加酸降低pH值的，属于酸化的低酸性罐头食品。酸性罐头食品的定义：杀菌后平衡pH值等于或小于4.6的罐头食品。pH值小于4.7的番茄、梨和菠萝以及由其制成的汁，以及pH值小于4.9的无花果都算作酸性食品。低酸性罐头食品的定义：除酒精饮料以外，凡杀菌后平衡pH值大于42实验原理将密封好的罐头放入一定的温度培养箱，培养一定的时间，观察是否出现胖听情况，同时开启胖听罐或未胖听罐，观察和比较感官与质地的变化，测定pH值，接种培养，并对培养物涂片、染色、观察实验原理将密封好的罐头放入一定的温度培养箱，培养一定的时间，43称重→样品保温培养→观察现象→开罐检验→pH值测定、感官检验、涂片染色镜检、接种培养→结果判定检验程序：称重→样品保温培养→观察现象→开罐检验→pH值测定、感官检验44样品保温时间和温度

罐头种类温度/℃时间/d（天）低酸性罐头食品36±110酸性罐头食品30±110预定要输往热带地区（40℃以上）的低酸性食品55±15~7样品保温时间和温度罐头种类温度/℃时间/d（天）低酸性罐45低酸性罐头食品的检验培养基管数培养条件/℃时间/h庖肉培养236±1（厌氧）96~120庖肉培养255±1（厌氧）24~72溴甲酚紫葡萄糖肉汤（带倒管）236±1（需氧）96~120溴甲酚紫葡萄糖肉汤（带倒管）255±1（需氧）24~72低酸性罐头食品的检验培养基管数培养条件/℃时间/h庖肉培养246酸性罐头食品的检验培养基管数培养条件/℃时间/h酸性肉汤255±1（需氧）48酸性肉汤230±1（需氧）96麦芽浸膏汤230±1（需氧）96酸性罐头食品的检验培养基管数培养条件/℃时间/h酸性肉汤2547结果判定：1.该批（锅）罐头食品经审查生产操作记录，属于正常；抽取样品经保温试验未胖听或泄漏；保温后开罐，经感官检验、pH值测定或涂片镜检，或接种培养，确证无微生物增殖现象，则为商业无菌。2.该批（锅）罐头食品经审查生产操作记录，未发现问题；抽取样品经保温试验有一罐及一罐以上发生胖听或泄漏；或保温后开罐，经感官检验、pH值测定或涂片镜检，或接种培养，确证有微生物增殖现象，则为非商业无菌。结果判定：1.该批（锅）罐头食品经审查生产操作记录，属于48新概念英语第二册Lesson75新概念英语第二册Lesson75saveoursoulssaveoursouls50S.O.S.求救信号很多人都以为S.O.S.是由一些单字的首字母缩写而成，如SaveOurSouls（拯救我们的生命！）SaveOurShip（拯救我们的船只！）等。你认为真是这样的吗？S.O.S.求救信号51新概念英语第二册Lesson75课件52新概念英语第二册Lesson75课件53新概念英语第二册Lesson75课件54bethickwith…充满……的Theairwasthickwithsmoke.bethickwith…55signaln.信号;暗号/v.标志;发信号signallamp信号灯通信密码signalcode代码危险信号adangersignalsignalto/(打手势或发声音)向…示意;发信号Therescueteamsignaledtothevictimstogetonaboard.救援队伍示意灾民们上车/船/飞机….signaln.信号;暗号/v.标志;发信号sig56stampv.踩，跺stampalbum集邮册

stampcollector集邮者stampout扑灭，踩灭Stampon把…印在(或打、刻)在…上；使铭记：Hestampedoutcigarettebutt.Hestamphisnameonallhisbooks.stampv.踩，跺stampalbum集邮57Hehadsurvivedheartbypasssurgery.他在心脏搭桥手术中活了下来。存活peoplewhoarestrugglingtosurvivewithoutjobs.…挣扎着以挺过失业的人们。挺过Noonesurvivedtheaircrash.无人在这次空难中幸免于难。幸存Mostwomenwillsurvivetheirspouses.大多数女性比她们的配偶活得长。比…活得长surviveHehadsurvivedheartbypasss58helicoptern.

直升飞机Thehelicoptertooktheonlysurvivorfromthefirescene.直升机带走了火灾现场的唯一幸存者。helicoptern.

直升飞机Theheli59QuestionsHowdidshegethelp?Whathappenedtotheyoungwoman?Howdoyouthinkofthewoman?QuestionsHowdidshegethelp?60Howdidshegethelp?Shesentasignaltotheplanebystampingout“SOS”insnow.Whathappenedtotheyoungwoman?Aplanecrashedandshewasleftonsnow.Howdoyouthinkofthewoman?Shewaslucky/strong/smart/Howdidshegethelp?Whathapp61TextText621.Whydidtheplanecrash?Becausetheplaneflewoffitscourse.

飞离航线Coursen.科目；课程；道路；路线，航向；一道菜1.Whydidtheplanecrash?Bec632.Howmanypeoplewerethereinthehelicopter?

PilotYoungwomanTwobabydaughters2.Howmanypeopleweretherei64Whatwastheenvironmentlike?Itwasmiddlewinter,therewerethicksnowontheground,anditwasgettingdark.Thewomanwasmilesawayfromthenearestvillage.Itwasterriblycoldduringthenight.Whatwastheenvironmentlike653.Howdidthewomankeepherchildrenwarm?Sheputthechildrenintoasuitcaseandcoveredthemwithalltheclothesshecouldfound.3.Howdidthewomankeepherc664.Howdidthewomanspendthenight?Shekeptasnearasshecouldtothechildrenandeventriedtogetintothecaseherself.4.Howdidthewomanspendthe675.Whatideacametothewoman?Shewantedtosendasignaltothepassingplane.6.Howdidthewomansendthesignal?Shestampedouttheletter“SOS”inthesnow.5.Whatideacametothewoman?687.Whatdidthepilotdotorescuethewoman?Hesentamessagebyradiotothenearesttown.7.Whatdidthepilotdotores698.Weretheyrescuedatlast?8.Weretheyrescuedatlast?70Phrases:Phrases:71alightpassengerplaneflyoffcoursetwobabydaughtersthemiddleofwintermilesawaygrowdarkturnintoalightpassengerplane72put…inside…cover…with…asnearasshecould/possibleearlynextmorningpassingoverheadsendasignalstampoutbyradiolongbeforearriveonthescenethesurvivorsof…put…inside…cove73beforelong不久，很快多与动词的过去时或将来时连用Theworkwillbefinishedbeforelong.longbefore很久以前long常与过去时或过去完成时连用，跟从句时也可用在一般现在时的句子中Shesaidthatshehadheardofitlongbefore.Itwillbelongbeforehearrives.还要等很久他才能到达。beforelong不久，很快74Longago表示“很久以前”指的从现在算起的很久以前，通常与一般过去时连用。Imethimlongago.我很久以前就认识他了。Beforelong不久以后，很快（指从现在算不久以后）Iwillbebackbeforelong.不久我就回来。Longago表示“很久以前”指的从现在算起的很久以前75Specialdifficulties:Page352Specialdifficulties:Page35276growturngogetcomefall变成

grow逐渐变得比get更正式

turn把（状态，性质）改变（成）；使颜色变化

go变成（某种状态）通常是不好的变化

get成为（某种状态）口语中

come变成，成为，达到cometruefall变成…的状态turntopage352growturngogetcome77Exercise:Exercise:78用所给词的适当形式填空。1.TomandMary______(come)toChinalastmonth.2.Mike______(notgo)tobeduntil12o’clocklastnight.Sohe______(get)uplate.3.Mary_______(read)Englishyesterdaymorning.4.There_______(be)noonehereamomentago.5.I______(call)Mikethismorning.用所给词的适当形式填空。796.Ilistenedbut______(hear)nothing.7.Tom______(begin)tolearnChineselastyear.8.Lastweekwe______(pick)manyapplesonthefarm.9.Mymother_______(notdo)houseworkyesterday.10.ShewatchesTVeveryevening.Butshe______(notwatch)TVlastnight.6.Ilistenedbut______(hear8011．____yourfather___(go)toworkeverydaylastyear?12．--Whattime___you___(get)toBeijingyesterday?--We___(get)toBeijingat9:00intheevening.13.What____(make)himcry(哭)justnow?14.Lastyeartheteacher____(tell)usthattheearthmovesaroundthesun.15.There____(be)atelephonecallforyoujustnow.

11．____yourfather___(go)8116.There___(be)notenoughpeopletopickapplesthatday.17.There_____(benot)anyhospitalsinmyhometown(家乡)in1940.18.There____enoughmilkathomelastweek,wasn’tthere?19.Eli____(move)toJapanlastweek.20.–When____you_____(come)tochina?Lastyear.16.There___(be)notenoughp8221.Didshe________(have)supperathome?22.Jack________(notclean)theroomjustnow.23._____(be)itcoldinyourcityyesterday?24.Howmanypeople____(be)thereinyourclasslastterm?25.It______(be)hotyesterdayandmostchildren_______(be)outside.26.There________(be)afootballmatchonTVyesterdayevening,butI______(have)notimetowatchit.21.Didshe________(have)su83请用正确动词形式填空。1.I______(have)anexcitingpartylastweekend.2._______she______(practice)herguitaryesterday?No,she_________.3.What______Tom______(do)onSaturdayevening?He______(watch)TVand______(read)aninterestingbook.4.Theyall____(go)tothemountainsyesterdaymorning.

请用正确动词形式填空。845.She____(notvisit)herauntlastweekend.She_____(stay)athomeand_____(do)somecleaning.6.When_____you_____(write)thissong?I______(write)itlastyear.7.Myfriend,Carol,____(study)forthemathtestand______(practice)Englishlastnight.8.______Mr.Li_____(do)theprojectonMondaymorning?Yes,he______.9.How______(be)Jim'sweekend?It_____(benot)bad.5.She____(notvisit)heraun8510.________(be)yourmotherasalesassistantlastyear?No.she__________.句型转换Lastweek