阅读理解。Dogswag(摇摆)theirtailsindifferentdirectionsdependingonwhethertheyareexcitedandwantingtomoveforwardorthreatenedandthinkingofmovingbackastudyhasfound.ResearchersinItalyexaminedthe
阅读理解。
Dogswag(摇摆)theirtailsindifferentdirectionsdependingonwhethertheyareexcitedandwanting
tomoveforwardorthreatenedandthinkingofmovingbackastudyhasfound.
ResearchersinItalyexaminedthetailwaggingbehaviorof30dogscatchingtheirresponsestoarange
ofstimuli(刺激物)withvideocameras.Toconductthestudytheychose15maledogsand15femaleones
agedbetweenoneandsixyears.Thedogswereallfamilypetswhoseownershadallowedthemtotakepart
intheexperimentatBariUniversity.Thedogswereplacedinalargewoodenboxwithanopeningatthefront
toallowforthemtoviewvariousstimuli.Theyweretestedoneatatime.
TheresearchersledbyProfessorGiorgioVallortigaraoftheUniversityofTriestefoundthatwhenthe
dogswereshowntheirowners-apositiveexperience-theirtailswaggedenergeticallytotherightside.When
theywereshownanunfamiliarhumantheywaggedtotherightbutwithsomewhatlessenthusiasm.The
appearsofacatagaincausedaright-handsidewagalthoughwithlessintensityagain.Theappearanceofa
largeunfamiliardogsimilartoaGermanshepherdchangedthedirectionoftailwaggingtotheleft.Research
erssupposedthedogwasthinkingofmovingback.Whenthedogswerenotshownanystimulitheytended
towagtheirtailstotheleftsuggestingtheypreferredcompany.Whilethechangesinthetailwaggingwere
noteasilynoticedwithouttheaidofvideoitwasthoughtthatthefindingscouldhelppeoplejudgethemood
(心情)ofdogs.Computerandvideosystemsforexamplecouldbeusedbyprofessionaldogtrainersto
determinethemoodofdogsthattheywererequiredtoapproach.
1.Thevideocameraswereusedtocatchthedogs'responsesbecause_____.
A.itwaseasiertocatchthedogs'responsechangesinthetailwagging
B.thedogswereputinthewoodenboxesandtestedoneatatime.
C.theyenabledthedogs'ownerstoknowabouttheirdogs'habit
D.thedogswaggedtheirtailsindifferentdirectionswhentheywereindifferentmoods
2.Theunderlinedword"intensity"inthepassagemeans_____.
A.sur