英语听力教程(第2册)Unit 7 听力原文

Unit7听力原文PartIB1.A:Doyouknowhowmanyteethyou’vegot?B:Howmanyteeth?Ooh,ooh.24?More?(A:Yes)32?A:Yes.2.A:Doyouknowhowmanybonesthereareinyourbody?B:Howmanybones?I'lltakeaguess.153.A:2063.A:Howoftendoesyourheartbeat?B:98timesaminute.A:No,70timesaminute.4.Bob:Doyouknowwhatthebossthinksyoushoulddo,Billy?Billy:Justyoukeepyourgreatnoseoutofthis,Bob,willyou?(Meaning:notinterferein)5.Anne:StevenKent,Inever,neverwanttoseeyouinmylifeagain.Steven:Ohno.Mary:Youreallyhaveputyourfootinit,haven'tyou?(Meaning:causeembarrassmentbydoingorsayingsth.tactless)6.Kate:Dave!Canyougivemeahand,please?Dave:What?Kate:Isaidcanyougivemeahand.Dave:Allright,I'mcoming.Noneedtoshout.(Meaning:askforhelp)7.Max:Arethereanyjobsgoinginyourcompanythen,foranintelligent,hard-workingyoungmanlikemysonJulian?Frank:No,Ihaven'theardofanyatallrecently.Max:Well,couldyoukeepyourearsopen,justincase?(Meaning:listenwithcare)8.Carol:HaveyouheardaboutMaggiethen?Norma:Maggie?MaggieThatcher?Carol:No.MaggieBrown.She'sinloveagain.Norma:Ohnotagain.Whowiththistime?Carol:Withherboss.Headoverheelsinlovewithhim,sheis.(Meaning:completely)9.Nick:HaveyoueverlentanymoneytoMick?Jill:Mick?Huh!Iwouldn'tlendhimanyifIwereyou.Nick:Whynot?Doesn'thepayitback?Jill:No.Never.He'suptohisneckindebts.(Meaning:deeplyinvolvedin)10.Liz:She'saverygooddoctor.Neverlooksatherwatch.Nevercomplains.Nothing'stoomuchtroubleforher.Pat:Iknow,yeah.Notmanylikeherabout.She'sallheart,really.Allheart.(Meaning:withthedeepestdevotion)CNobody'sreallysurewhypeoplegobald,butsomescientistsbelievethatpeoplemayinheritbaldness.Ifyouareinterested,checkoutyourmother'father.Yourhairlinemaylooklikehiswhenyougetolder.Nowlistentothisradiophone-in.Completethefollowingchart.checkout：查查hairline：发线combhair：梳头shampoo：洗发bald：秃顶baldness：秃头ridiculous：可笑patch：部分，区域wig：假发Radiopresenter:Allright.Thankyouforthatcall,Rosemary.Wegonow,Ithink,toGlasgowandournextcaller,er,JimBaillie.HelloJim.Jim:Hello?Radiopresenter:HelloJim.What'syourproblem?Jim:Er…wellI'mer…beginningtolosemyhair.Er,Iwenttothedoctor,buthejustsaidtherewasnothingIcandoaboutit.Hesaiditwasprobablyhereditary.Myfatherwasbaldbythetimehewasthirty.Maurice:Hello,Jim.Andhowoldareyou?Jim:Me.I'mtwenty-eight.Maurice:Andareyoulosingalotofhair,then?Jim:Well,itcomesoutalotwhenIcombmyhairandyoucanseeathinpartonthetopofmyhead.Maurice:Anddoesthatreallyworryyou,jim?Jim:Well.Idon'tlikeit.It'sold…youknow…looksold…Idon'twanttolooklikeamiddle-agedmanattwenty-eight.AndIwonderediftherewassomespecialshampooIshoulduse…ifyoucouldtellmeonethatIshouldbuy…somethinglikethat…youknow…tostopitgettingworse.Maurice:Well,youknow,Jim,tobehonestwithyouthere'snotreallyalotyoucandoaboutit,actually,I'mafraid.Imean,baldnessisoneofthosethingsthat,inmyexperience,youjusthavetotrytoaccept.Somemenfinditmoredifficulttoacceptbaldnessthanothers…Tessa:Thereisonepieceofadvice,though,Jim,andthat'sdon'ttrytocombyourhairoverthebaldorthinpatch.Don'ttrytohideit.Whateveryoudo,don'tcombitoverbecausethatusuallylooksridiculous.Andtheotherthingthatusuallylooksridiculousisamanwithawig.Don'tletanyonepersuadeyoutobuyoneofthosefalsehairpiecethings,becausetheyusuallylookmuchworsethanabaldman.Iactuallythinkbaldmencanlookveryattractive.Myhusband'sbaldandIthinkitreallysuitshim.PartIIThedigestivesystemanddiarrheaThehumanbodyisahighlycomplexself-generator,thatistosay,provideditisgiventherightfuel,itiscapableofbothcuringandwardingoffdisease.Thefoodweeathelpstogiveusenergy.Ithasalongjourneytomakebeforeallitsgoodnesshasbeentakenintoourbody.Thefoodtakesuptosixhourstobedigestedinthestomach,dependingonthesizeofthemeal.Thecompletedigestiveprocesstakesabout24hours.Butsometimesthesystemcangowrong.complex：复杂self-generator：自愈(体)provided：假设fuel：燃料wardingoff：避免digest：消化digestion：消化digestiveprocess：消化过程digestivesystem：消化系统stomach：胃over-tax：课税过重；负担过重insufficiently：不够，不能胜任grindtoahalt：慢慢减速到停止;陷入停顿rusty：生锈的，腐蚀的coilup：缭绕mechanism：机制，机能sluggish：行动迟缓的，反应慢的abdomen：肚子efficiently：效率高地;有效地breakdown：损坏watery：含水的，水分多的squeeze：挤；榨muscle：肌肉irritable：易怒的，急躁的;过敏的;应激性的;毛躁dehydrate：使脱水，使干燥gut：肠子；勇气;内脏;直觉;reasonable：合理的，公道的irritate：刺激，使兴奋;bowel：肠;内部;同情心，怜悯心obviously：明显clearup：清除intestine：肠enzyme：酶feces：粪，屎，渣滓;粪便symptom：症状;征兆diarrhea：腹泻constipation：便秘contaminatedfood：污染的食物virus：病毒parasite：寄生虫dehydration：脱水;干燥，极度口渴;失水fluid：液体，流体lifesaver：救生者bacteria：细菌syndrome：综合征;综合症状;典型 表 关于同志近三年现实表现材料材料类招标技术评分表图表与交易pdf视力表打印pdf用图表说话 pdf 现tummypains：胃/肚子痛apinchof：一撮，少许AOurbodyismadeupofthousandsofdifferentparts.Allthesepartsworktogethertokeepusaliveandtohelpusmovearound.Thepartsofthehumanbodyarelikethepartsofaverycomplicatedmachine.Likeanyothermachine,however,ifitisinexpertlycaredfor,over-taxedorinsufficientlyused,itwillbecomerusty,sluggishorcloggedandpartsofitsmechanismmayevengrindtoahalt.Thatiswhyitissoimportanttokeepeverypartofthehumanmachinehealthyandproperlycaredfor.Tokeepingoodrunningorder,thebodyrequirestherawmaterialsforgrowthandthereplacementoftissueswhennecessary.Ourbodiesburnfoodlikefueltoproducetheenergyweneed.Thehumandigestivesystemisabitlikeaverylongtube,butit'salotmorecomplex.It'sseveralmeterslong,andmostofitiscarefullycoiledupinourabdomen.Ithasseveralimportantjobstodo.First,itmustdigestorbreakdownourfood.Digestionstartsthemomentfoodentersourmouth.Thenitcontinuesasthefoodissqueezedalongthegutbymusclesinthewalloftheintestine.Asthefoodtravelsthroughthegut,naturalchemicalscalledenzymesareaddedtoit,whichhelpbreakdownthefood.Thenthisdigestedfoodandwatermustbeabsorbedfromthegutintoourbloodstreamsothatitcanbeusedbythebody.Finally,thegutmustcarryawayanywasteproductsintheformoffeces.Usuallyourintestinedoesallthesethingsveryefficiently.Butsometimesthingscangowrong.Probablythemostcommongutsymptomsarediarrheaandconstipation.Withdiarrhea,thefoodandwatertravelstooquicklythroughtheintestine,oftenmakingthefeceswatery,andmakingitnecessarytoopenthebowelsmorefrequently.Therearelotsofcausesofdiarrhea.Probablythecommonestcausesofdiarrheaarecontaminatedfoodorwater,andinfectioncausedbyvirusesorparasites.Manycasesofdiarrheaclearupwithinafewdayswithoutanyspecialmedicines.Butthebodylosesalotoffluidthroughdiarrhea,sothereisaveryrealriskofthebodydryingoutorbecomingdehydrated.Becauseofthisriskofdehydration,thebesttreatmentfordiarrheaissimplytomakesureyouaredrinkingenough.Avoidingdehydrationinthiswaycanbealifesaver.BTherearelotsofdifferentcausesofdiarrhea.Um,thereareinfectionsthatcanhappen,andthisisfoodpoisoning,ifyoulike,whereinyourfoodyoueatsomesortofbacteriaororganisms,whichinfectyou.Somefoodscanjustirritatethegutandtendtogiveyoudiarrhea,althoughtheyarenotinfected.It'sjustthefooditself(that)mightirritateyoursystem.Somepeople,iftheygetverynervousandstressedaboutsomething,findtheytendtogetdiarrhea.Somethingcalledtheirritablebowelsyndromewheresomethinggoeswrongwiththewaythegutworks.Andpeoplethatsufferfromthistendtoget,um,tummypains,andtheygetsometimesdiarrhea,sometimesconstipation.Allsortsofcauses.Mostattacksofdiarrhea,um,particularlyinadults,arenotseriousandtheyclearupbythemselveswithinoneortwodays.Themostimportantthingistodrinklotsoffluid,becauseifyouhavegotdiarrhea,you'reobviouslylosingalotoffluid.Andsoit'sbetterreallynottoeattoomuch,nottoworryaboutthat,buttomakesureyoudrinkplentyoffluid.Andideally,thisshouldhavealittlebitofsaltandsugarin.Youcangetspecialrehydratingfluids,whicharespeciallymixed.Butifyouwanttomakeyourownbyaddingjustateaspoonfulofsugarandapinchofsalt,thenit'sobviouslyperfectlyreasonabletodothat.PartIIIImmunityTheenvironmentcontainsmanypotentiallydestructivemicroorganisms.Itisimpossibleforustoavoidcontactwithmicrobes.That'swhyourbodyisconstantlyunderattackfrominvadinggermsandinfections.Thenwhydon'twesufferfromconstantillness?Dowehaveourowndefensesystem?B.potentially：潜在地destructive：破坏性的microorganisms：微生物impossible：不可能microbes：微生物，细菌invadinggerms：侵入的细菌sufferfrom：生病；忍受defensesystem：防护系统lash：鞭挞，鞭子;责骂;讽刺;眼睫毛immunity：免疫constant(ly)：持续comeintoplay：起作用germ：细菌literally：字面上assist：帮助reserve：保存，储备，储存backup：支持，后援;阻塞;（计）备份文件bonemarrow：骨髓antibody：抗体measles：麻疹polio：脊髓灰质炎；小儿麻痹症tuberculosis：肺结核Thehumanbodyisconstantlyunderattackfrominvadinggermsandinfections.Andtheonlyreasonwedon'tsufferfromconstantillnessisourbodieshavetheirowndefensemechanismtofightoffdisease.Thisresistancetoinfectioniscalledimmunity.A:Howdoesimmunitywork?B:Well,theimmunesystemisthebody'sownsecretarmy,whichfightsinfection.Anditconsistsofawholerangeoftroops,soldiers,theircellsandtheirmolecules.Nowtheheadquartersofthisarmyisreallytheblood.That'swhereitdoesmostofitsfighting.Andsometimesitneedssomereserve,andthatcomesfromthebonemarrow.That'swheretheimmunecellsaremade.A:Sotherearemanydifferentkindsofcells,differentkindsofmoleculesintheimmunesystem.Iguessedtheonesthatwe'reprobablymorefamiliarwitharewhitebloodcells.B:That'sright.Whitebloodcellsformamajorpartofthebody'sdefense.Buttherearealsoantibodiesintheirlife,moreproteins.Theyjustlashontotheinvaders.Thewhitecellscansometimesactuallygobbleupinvaders.Thecleverthingisthatoncetheinfectionhasattackedourbody,theimmunesystemseemstohaveamemoryoftheinvader,sothatthenexttimeitseestheinvaderitcanattackveryquickly.A:Therearesomethingswhichwe'renotnaturallyimmunetoandthat'swherevaccinationcomesin,isn'tit?B:Exactly.Vaccinationplaysonthebody'sabilitytorememberinfection.Sowhathappensisthatsomeoneisgivenaversionofanillness,forinstance,measlesorpolio,ortuberculosis,andthebodythinksthatitisactuallybeinginfectedwiththatinfection.Andthenexttimeitseesit,thebodycanrespondveryquickly.Allthetroopsofitsimmunesystemcancomeintoplay.A:Nowsometimestheimmunesystemdoesn'tworkverywell,doesit?B:No.It’saremarkablycomplexsystem.Andsometimesitcangowrong.Eitheritcanbeoveractive,soitactuallystartstoattackourownbodyself,oritcanbeunderactivesometimes,andwearemorelikelytobeinfectedinthatsituation.A:Arethereanyimportantillnesseswhichresultfromtheimmunesystemsothatit'sturningonourbodiesthemselves?B:Thereare.Oneexamplewouldbeadiseaselikemultiple-sclerosis,wherethebody'sownimmunesystemattackstheliningofnerves,whichmeansthatpeople'snervesdon'tworkproperly.A:We'reabletoassistthebodyinitsfightagainsttheillnessinmanycases,buttherearesomediseaseswhichwedon'tseemtobeabletoproduceavaccinefor.AIDSisoneofthem.Whynot?B:TheproblemisAIDS,whichiscausedbytheHIVvirus,attacksthehumanimmunesystem,whichmeansthatournormaldefensesaren'ttheretofightoffthatinfection.TheotherproblemwithtryingtoproduceavaccineagainstHIVorAIDSisthatthevirus,HIV,canchangeitselfsoeasily.That'sverydifficulttofindavaccinewhichcanrecognizeallthedifferenttypesofHIV.Soonevaccinemaybeeffectiveagainstonetypeofthevirusbutitmayabsolutelybenogoodforanothertype.C.Presenter:Thehumanbodyisconstantlyunderattackfrominvadinggermsandinfections.Andtheonlyreasonwedon'tsufferfromconstantillnessisourbodieshavetheirowndefensemechanismtofightoffdisease.Thisresistancetoinfectioniscalledimmunity.AndherewithmetodiscusshowitworksisGrimeEaston.Heisafamilydoctor,andamemberoftheScienceInIthereintheBBCWorldService.Grime,howdoesimmunitywork?Grime:Well,theimmunesystemisthebody'sownsecretarmy,ifyoulike,whichfightsinfection.Anditconsistsofawholerangeoftroops,soldiers,theircellsandtheirmolecules.Um,nowtheheadquartersofthisarmyisreallytheblood.That'swhereitdoesmostofthefighting.Andsometimesitneedssomereserve,somebackup,andthatcomesfromthebonemarrow.That'swheretheimmunecells'factoriesare.Presenter:Sotherearemanydifferentkindsofcells,anddifferentkindsofmoleculestiedupintheimmunesystem.Iguessedtheonesthatwe'reprobablymorefamiliarwitharewhitebloodcells.Grime:That'sright.Whitebloodcellsformamajorpartofthebody'sdefense.Buttherearealsoantibodiesintheirlife,moreproteins,whichjustlashontotheinvaders.Um,but,asyousay,thewhitecellscansometimesactuallygobbleupinvaders.Sothecleverthingisthatoncetheinfectionhasattackedourbody,theimmunesystemseemstohaveamemoryoftheinvader,sothatthenexttimeitseestheinvaderitcanattackveryquickly.Theimmunesysteminthehumanbodyfightsinvadingdisease.Immunityoccursbecausetheimmunesystemcanrememberthechemicalmakeupofinvadinggermsandattackthemveryquickly.Presenter:Therearesomethingswhichwe'renotnaturallyimmunetoandthat'swherevaccinationcomesin,isn'tit?Grime:Exactly.Vaccinationplaysonthebody'sabilitytorememberinfection.Sowhathappensisthatsomeoneisgivenaversionofanillness,forinstance,measlesorpolio,ortuberculosis,andthebodythinksthatitisactuallybeinginfectedwiththatinfection.Andthenexttimeitseesit,um,thebodycanrespondveryquickly.Andallthetroopsofitsimmunesystemcancomeintoplay.Vaccinationcanbeusedtoprotectthebodyagainstspecificinfections.Presenter:Nowsometimestheimmunesystemdoesn'tworkverywell,doesit?Grime:No.It'saremarkablycomplexsystem.It'saverycomplicatedsystem.Andsometimesitcangowrong.Eitheritcanbeoveractive,soitactuallystartstoattackourownbodyself,oritcanbeunderactivesometimes,andwearemorelikelytobeinfectedinthatsituation.Presenter:Arethereanyimportantillnesseswhichresultfromtheimmunesystemsothatit'sturningonourbodiesthemselves?Grime:Thereare.Andoneexamplewouldbeadiseaselikemultiple-sclerosis,wherethebody'sownimmunesystem,wethink,attackstheliningofnerves,whichmeansthatpeople'snervesdon'tworkproperly.Presenter:We'reabletoassistthebodyinitsfightagainsttheillnessinmanycases,buttherearesomediseaseswhichwedon'tseemtobeabletoproduceavaccinefor.Um,AIDSisoneofthem.Whynot?Grime:Well,theproblemisAIDS,whichiscausedbytheHIVvirus,isthatHIVitselfattacksthehumanimmunesystem,whichmeansthatournormaldefensesaren'ttheretofightoffthatinfection,orindeedmanyothersortsofinfection.TheotherproblemwithtryingtoproduceavaccineagainstHIVorAIDSisthatthevirus,HIV,canchangeitselfsoeasily.Um,that'sverydifficulttofindavaccinewhichcanrecognizeallthedifferenttypesofHIV,whichthereare.Soonevaccinemaybeeffectiveagainstonetypeofthevirusbutitmayabsolutelybenogoodforanothertype.HIVisthevirusthatcausesAIDS.HIVdestroysthebody'simmunesystem,andputsthebodyatgreaterriskfromothercommoninfections.Presenter:IwastalkingtoDr.GrimeEastonoftheScienceInItaboutimmunity.Thereasonwhyhe,I,andIhopeyou,areabletoremainashealthyasweare.PartⅣWhydoIcatchcoldsVirusaremostdefinitelygoingtogetyou.Andwhentheydo,theywillgiveyouanything,fromacoldtoEbola.Andyet,technically,virushavenolifeoftheirown.Sowhydotheycausesomuchtrouble?Moretothepoint,whydoIcatchcolds?Seethatguywiththeblockednose.Whenhesneezes,40,000dropletswillflytwelvefeetintheirair,infectingupto150people.Youshouldhaveducked.Acoldvirusjustcan’tlivewithoutyou.Withnocellsofitsown,itneedstotakeoveryourcellsandreplicate.Here’ssomethingtothinkabout.Theviruscanonlytravelaroundinsideablobofmacus.Andthatmeanwheneveryoucatchasniffle,someoneelse’ssnothasbeenupyournose.Anyway,yourimmunesystemisconstantlyontheprowlforattackerslikethese.Ifitwasn’t,youcouldendupwithfatalpneumonia.So,whenitspotsaviralinvasion,itgrabsasample.Here,aTcellfirstidentifiestheinvaderandthendeploysanarmyoftailor-madeimmunecellstoyournose.Theseprovidespecialbackupforthestandardimmunecellsalreadyfightingyourcold.Yournosehasbecomeabattleground.Meanwhile,tostopinfectionspreadingtoyourlungs,you’remanufacturingadailypintofmacus.Thissnotgivesyouaheadache.Whilethevirusirritatesyournose,soyouhavetoblowitaround45timesaday.Beatingacoldtakesyouaboutsevendaysandyou’llcatchaboutfourayear.Thisisthegoldenageforthecoldvirus.Ithopsonplaneswithitshumanhosts,visitsnewcitiesandfindshundredsofnewhomeswitheverysneeze.Asitreplicates,itmutates.Sobythenextyearitmaybebackinadifferentform.PartVDentalHealthPeoplehavebeentroubledbytoothandgumproblemsforthousandsofyears.TheearliestrecordofdentaltreatmentcomesfromancientEgypt.BookssaytheEgyptianstreatedgumswellingbyusingasubstancemadeofspicesandonions.TheearliestknownpersontotreattoothproblemswasalsofromEgypt.Helivedaboutfive-thousandyearsago.Hewasknownasa"doctorofthetooth."ExpertssayChinesepeoplelivingalmostfive-thousandyearsagotreatedtoothpainbyacupuncture--placingsmallsharpneedlesindifferentpartsofthebody.Aboutone-thousand-three-hundredyearsago,theChinesefilledholesintheteethwithamixtureofthemetalsmercury,silverandtin.Thatwasalmostone-thousandyearsbeforeasimilarsubstancewasfirstusedinwesterncountries.SomeancientpeopleliketheMayadidnottreatdentaldisease.Buttheymadetheirteethprettybyplacingpiecesofstoneandmetalonthem.TheancientRomanswerecarefulaboutkeepingtheirteethclean.Morethantwo-thousandyearsago,theRomanstreatedtoothaches,filledholesinteeth,andmadefalseteethtoreplacethosethathadbeenlost.Fromthefifthtothefifteenthcenturies,Europeanswithtoothproblemswenttopeoplecalledbarber-surgeons.Thesepeopleperformedmanyservices,includingcuttinghair,pullingteethandtreatingmedicalconditions.Dentaltreatmentimprovedduringthefourteenthandfifteenthcenturiesasdoctorsincreasedtheirknowledgeaboutteeth.ModerndentistrybeganintheSeventeen-HundredsinFrance.ThatwaswhenPierreFauchardpublishedhisbookcalled"TheSurgeonDentist."Itwasthefirstbookaboutdentalscience.Thebookprovidedinformationaboutdentalproblemsforotherdentiststouse.Anditdescribedwaystokeepteethhealthy.PierreFauchardisconsideredthefatherofmoderndentistry.Hisworkwasimportantinhelpingestablishdentistryasaseparateprofession.