材料全屏

材料全屏

                                                                                   Piano

【*】Foracenturyandahalfthepianohasbeenoneofthemostpopularsoloinstr umentsforWesternmusic.Unlikestr ingandwindinstr ument,thepianoiscompletelyself-sufficient,usitisabletoplaythemelodyanditsaccompanyingharmonyatthesametime.Forthisreason,itbecamethefavoritehouseholdinstr umentofthenineteenthcentury.
【*】Theancestr yofthepianocanbetr acedtotheearlykeyboardinstr umentsofthefifteenthandsixteenthcenturies--thespinet(小型立式钢琴),thedulcimer(洋琴),andthevirginal(小键琴)Intheseventeenthcenturytheorgan(管风琴),theclavichord(古钢琴),andtheharpsichord(大键琴)becamethechiefinstr umentsofthekeyboardgroup,asupremacytheymaintaineduntilthesupplantedthemattheendoftheeighteenthcentury.Theclavichord'stonewasmetallicandpowerful;nevertheless,becauseofthevarietyoftonepossibletoit,manycomposersfoundtheclavichordasympatheticinstr umentforintimatechambermusic.Theharpsichordwithitsbright,vigoroustonewasthefavoriteinstr umentforsupportingthebassofthesmallorchestr aoftheperiodandforconcertuse,butthecharacterofthetonecouldnotbevariedsavebymechanicalorstr ucturaldevices.
【*】ThepianowasperfectedintheearlyeighteenthcenturybyaharpsichordmakerinItaly(thoughmusicologistspointoutseveralpreviousinstancesoftheinstr ument)Thisinstr umentwascalledapianoeforte(softandloud),toindicateitsdynamicversatility;itsstr ingswerestr uckbyarecoilinghammerwithafelt-paddedhead.Thewiresweremuchheavierintheearlierinstr uments.Aseriesofmechanicalimprovementscontinuingwellintothenineteenthcentury,includingtheintr oductionofpedalstosustaintoneortosoftenit,theperfectionofametalframe,andsteelwireofthefinestquality,finallyproducedaninstr umentcapableofmyriadtonaleffectsfromthemostd elicateharmoniestoanalmostorchestr alfullnessofsound,fromaliquid,singingtonetoasharp,percussivebrilliance.
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【单选】

Whatd oesthepassagemainlydiscuss?（）

A

Thehistoricaldevelopmentofthepiano

B

Thequalityoftoneproducedbyvariouskeyboardinstr uments

C

Theusesofkeyboardinstr umentsinvarioustypesofcompositions

D

Thepopularityofthepianowithcomposers

答案及解析：主旨大意题。通读全文可以看出,文章讲述的是钢琴发展的历史。