新概念英语第四册Lesson+23+Bird+flight 课件

Lesson23Birdflight鸟的飞行方法①

Notwosortsofbirdspractisequitethesamesortofflight;thevarietiesareinfinite;buttwoclassesmayberoughlyseen.Thepossibilitiesareinfinite.Mankindhasinfiniteingenuity.class/category/type/sortfallinto....categoriesbedividedinto....classes②

AnyshipthatcrossesthePacificisaccompaniedformanydaysbythesmalleralbatross,whichmaykeepcompanywiththevesselforanhourwithoutvisibleormorethanoccasionalmovementofwing.albatrossn.信天翁analbatrossaroundone’sneckThescandalisanalbatrossaroundthepresident’sneck.lameduck不成功的人或事，美国政治的跛脚鸭（即将届满卸任者）sittingduck活靶子；易被击中的目标；易受攻击的对象carrierpigeon信鸽pigeon-toed内八字的，足内翻的③

Thecurrentsofairthatthewallsoftheshipdirectupwards,aswellasinthelineofitscourse,areenoughtogivethegreatbirdwithitsimmensewingssufficientsustenanceandprogress.sustenancen.食物，营养，生计；持续，维持sustainv.sustainableretainattainobtainmaintaindetaincontainbedirectedat针对Allthecriticismwasdirectedather.directadv.④

Thealbatrossisthekingofthegliders,theclassofflierswhichharnesstheairtotheirpurpose,butmustyieldtoitsopposition.harnessn.马具；v.利用（自然力）Thereisagreatdealofinterestinharnessingwindandwavesasnewsourcesofpower.Inordertoreducethefossilfuels,wehavenowbeguntoharnessenergyfromthewindandtides.Weaimtodobetteratharnessingtheskillsandtalentsofouremployeestableaproposal/billWouldyouliketochairtomorrow’smeeting?implementaplan/policygearsth.to/towardssth./sb.Hegearedhisspeechtoaconservativeaudience.⑤

Inthecontraryschool,theduckissupreme.

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Itcomesnearertotheengineswithwhichmanhas'conquered'theair,asheboasts.⑦

Duck,andlikethemthepigeons,areendowedwithsteel-likemuscles,thatareagoodpartoftheweightofthebird,andthesewillplytheshortwingswithsuchirresistiblepowerthattheycanboreforlongdistancesthroughanopposinggalebeforeexhaustionfollows.endowv.资助；赋予SomeAmericancollegesarestate-supported,othersareprivatelyendowed,andstillothersaresupportedbyreligiousorganizations.endowsb.withsth.She’sendowedwithbothbeautyandbrains.Sheisendowedwithgreatmusicalability.=investsb./sth.withsth.Thecrimescommittedthereinvestedtheplacewithanairofmysteryandgloom.plytheshortwingswithsuchirresistiblepowerachanceinamillionHisangernearlybursthisbelly.Everybodywasclappingtheirhandsoff.Shecriedhereyesout.Hehasaskeletonofawife.Thecarcosthimanarmandaleg.anopposinggale=adverse/unfavorablegale/wind⑧

Theirhumblerfollowers,suchaspartridges,havealikepowerofstrongpropulsion,butsoontire.propulsionn.推进力propelpel-=pushexpelcompelrepeldispelimpelbe/feelcompelledtodobe/feelimpelledtodo⑨

Youmaypickthemupinutterexhaustion,ifwindovertheseahasdriventhemtoalongjourney.Ifyouhavefinishedyourwork,youmaygohome.IfyouhaveneverbeentoAustralia,youmayliketoknowthatitiswellworthavisit.Ifyouhaveeverlivedwithher,youmayunderstandwhyIwouldliketoleaveher.⑩

Theswallowsharesthevirtuesofbothschoolsinhighestmeasure.⑪

Ittiresnot,nordoesitboastofitspower;butbelongstotheair,travellingitmaybesixthousandmilestoandfromitsnorthernnestinghome,feedingitsflownyoungasitflies,andslippingthroughamediumthatseemstohelpitspassageevenwhenthewindisadverse.adverseadj.不利的，相反的adverseeffectsadverseweatherconditionsadversecircumstancesadversewindadversecriticismadversityn.⑫Suchbirdsdousgood,thoughwenolongertakeomensfromtheirflightonthissideandthat;andeventhemostsuperstitiousvillagersnolongertakeofftheirhatstothemagpieandwishitgood-morning.omenn.预兆，征兆