拓展阅读 猫咪为什么发出咕噜声？外刊精读与练习-2023届高三英语二轮复习

猫咪为什么发出咕噜声？外刊精读与练习语篇泛读Whydocatspurr?We'veallheardcat'smeowandhiss,butwhydotheypurr?Thereareanumberoftheoriesoutthere-fromthecommonlyheldbeliefthattheyaresimplyhappy,toBritishcomedianEddieIzzard'slight-heartedsuggestionthattheyareimpersonatingadrill.Whiletheydopurrwhentickledorcaressedtoshowtheirappreciationforattention,catsalsomakethenoisewhennotinourcompany.Thepurringnoiseisaconsistentpulsingsoundthatoccurswhiletheybothinhaleandexhalebreath.Theword'purr，isagreatexampleofonomatopoeiaandreferstotheconstantnoisewhichrangesinfrequencybetween25and150hertz.Foralongtime,scientistsdebatedhowcatspurred.Mostpeoplebelievethatthecat'sbrainsignalsthelaryngealmusclestovibrateandfunctionlikeavalve,openingandclosingthespacebetweenthevocalcords.Whattriggersthisreactionisdebated.Somearguethatthecatintendstopurr,whileotherssayitmaybeduetoendorphinsreleasedbythebrainasareactiontopleasure,orpain.AccordingtoLeslieA.Lyons,anassistantprofessorattheSchoolofVeterinaryMedicineattheUniversityofCalifornia,catsoftenpurrwhilestressed,suchaswhentheyheadtothevetsorarerecoveringfromaninjury.Sowhatarethepotentialbenefitsofthis'drilling/sound?Somescientistsbelievethevibrationsthatripplethroughthecats'bodiesmayactuallypromotemuscledevelopment,healbonesandinjuries,easebreathingandlessenpain.Itcouldevenhelptosoothediscomfortinasimilarwaytoachildsuckingtheirthumb.So,thepurringofacatmayhavemoreusesthanjusttellingyouthey'reenjoyingattention.It'salsoimportanttorememberthatnotallcatscanpurr.Somebiggerfelines,likelions,can't,andonlyroar.So,thenexttimeyouheararoar,itprobablyisn/tyourpussycat,andyoumightneedtorun.二、词汇表meow猫叫声，口苗口苗叫hiss嘶嘶声purr（猫发出的）咕噜声pulsing脉冲的inhale吸气exhale呼气,吐出气onomatopoeia象声词，拟声词frequency（声波的）频率hertz赫兹laryngeal喉部的vibrate震动,颤抖vocalcords声带endorphin内啡肽,安多芬vibration持续震动ripple（声音）传播起伏roar吼叫测试与练习1.阅读课文并回答问题。Trueorfalse:catspurrwhentheybreatheinandout.WhydoesEddieIzzardcomparepurringtodrilling?Whatistheword'buzz'anexampleof?Whymightthebrainreleaseendorphins?Doallcatspurr?2.选择意思恰当的单词或词组来完成下列句子。Ifonetoodeeply,theymaycough.exhaleexhalationexhalesexhalingListentothattiger.It/sterrifying.roaredroarsroaringwasroaringTheseattomassageyourback.vibratingvibratevibrationvibratesBecarefulwhen一trynottobreathetoodeeply.inhalinginhalesinhaleinhalationThesoundsthroughtheair.ripplesripplingripsrippled【参考答案】1.阅读课文并回答问题。Trueorfalse:catspurrwhentheybreatheinandout.True.Catspurrwhentheyinhaleandexhale.WhydoesEddieIzzardcomparepurringtodrilling?Itwasajoke.Drillingisasimilarsound-theybothpulse.Whatistheword'buzz'anexampleof?'Buzz'isanexampleofonomatopoeia-awordpronouncedlikeitsounds.Whymightthebrainreleaseendorphins?Asareactiontopleasureorpain.Doallcatspurr?No.Bigcatslikelionsdon'tusuallypurr.选择意思恰当的单词或词组来完成下列句子。Ifoneexhalestoodeeply,theymaycough.2・Listen