Candolphins(海豚)talk?Maybetheycannottalkwithwords,buttheycantalkwithsounds．Theyshowtheirfeelingswithsounds．Dolphinstravelinagroup．Wecallagroupoffisha“school”．Theydonotstudy,buttheytraveltogether．Dolph

Candolphins(海豚)talk?Maybetheycannottalkwithwords,buttheycantalkwithsounds．Theyshowtheirfeelingswithsounds．Dolphinstravelinagroup．Wecallagroupoffisha“school”．Theydonotstudy,buttheytraveltogether．Dolphinsaremammals(哺乳动物),notfish,buttheyswimtogetherlikefishinasch001．Dolphinstalktotheotherdolphinsintheschool．Theygiveinformationtotheothers．Theytalkwhentheyarehappy,sadorafraid．Theysay“welcome”whenadolphincomesbacktotheschool．Theytalkwhentheyplay．

Theymakesomesoundsabovewater．Theymakemanymoresoundsunderwater．Peoplecannothearthesesoundsbecausetheyarevery,veryhigh．Scientistsmaketapesofthesoundsandstudythem．Sometimespeoplecatchdolphinsforalargeaquarium(水族宫)．Peoplecanwatchdolphinsinashow．Dolphinsdonotliketobeawayfromtheirschoolinanaquarium．Theyaresadandlonely．Therearemanystoriesaboutdolphins．Theyhelppeople．Sometimestheysavesomebody’slife．Dolphins’meatisgood,butpeopledonotliketokillthem．Theysaythatdolphinsbringgoodluck．Manypeoplebelievethis．

56．Theword“school”inthispassagemeans_______．

A．8placeforstudentstostudyB．aspecialkindofanimals

C．agroupoffishtravellingtogetherD．aplacefortrainingdolphins

57．Adolphinmakesasoundto

A．showotherdolphinstheyarehappyB．tellotherdolphinstheyaresad

C．1etpeopleknowtheyareafraidD．giveinformationtotheotherdolphins

58．Peoplecan’theardolphins’soundsunderthewater_________．

A．becausetheyarevery,verylow

B．becausetheyarevery,veryhigh

C．becausetheyareafraidofbeingfoundbypeople

D．becausetheywanttokeepsecrets

59．Dolphinswouldliketo___________．

A．studyatschoolsB．beawayfromtheirschools

C．staywiththeotherdolphinsD．beinshows

60．Thebesttitle(题目)forthispassageis____________．

A．ThedolphinB．SchoolsofDolphins

C．Dolphin’stalkD．Man’sFriend