全国英语专四集训巩固试题及答案_1.docx

全国英语专四集训巩固试题及答案全国英语专四集训巩固试题及答案Beware,beware!he'llcheat'ithoutscruple,whocanwithoutfear.以下是小编为大家搜索整理的`全国英语专四集训巩固试题及答案，希望能给大家带来帮助!更多精彩内容请及时关注我们应届毕业生考试网!Asthemerchantclassexpandedintheeighteenth?centuryNorthAmericanColonies,thesilversmithandthecoppersmithbusinessesrosetoserveit.OnlyafewsilversmithswereavailableinNewYorkorBostoninthelateseventeenthcentury,butintheeighteenthcenturytheycouldbefoundinallmajorcolonialcities.Noothercolonialartisansrivaledthesilversmiths’prestige.Theyhandledthemostexpensivematerialsandpossesseddirectconnectionstoprosperouscolonialmerchants.Theirproducts,primarilysilverplatesandbowls,reflectedtheirexaltedstatusandtestifiedtotheircustomers’prominence.Silverstoodasoneofthesurestwaystostorewealthatatimebeforeneighborhoodbanksexisted.Unlikethesilvercoinsfromwhichtheyweremade,silverarticleswerereadilyidentifiable.Oftenformedtoindividualspecifications,theyalwayscarriedthesilversmith’sdistinctivemarkingsandconsequentlycouldbetracedandretrieved.Customersgenerallysecurethesilverforthesilverobjecttheyordered.Theysavedcoins,tookthemtosmiths,anddiscussedthetypeofpiecestheydesired.Silversmithscompliedwiththeserequestsbymeltingthemoneyinasmallfurnace,addingabitofcoppertoformastrongeralloy,andcastingthealloyinrectangularblocks.Theyhammeredtheseingotstotheappropriatethicknessbyhand,shapedthemandpresseddesignsintothemforadornment.Engravingwasalsodonebyhand.Inadditiontoplatesandbowls,somecustomerssoughtmoreintricateproducts,suchassilverteapots.Theseweremadebyshapingorcastingpartsseparatelyandthensolderingthemtogether.Colonialcoppersmithingalsocomeofageintheearlyeighteenthcenturyandprosperedinnortherncities.Copper’sabilitytoconductheatefficientlyandtoresistcorrosioncontributedtoitsattractiveness.ButbecauseitwasexpensiveincolonialAmerica,coppersmithswereneververynumerous.VirtuallyallcopperworkedbySmithswasimportedassheetsorobtainedbyrecyclingoldcoppergoods.Copperwasusedforpracticalitems,butitwasnotadmiredforitsbeauty.Coppersmithsem