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1、文房四寶writingbrushlonghistoryThehistorycanbetracedbackatleast6,000years.InventedbyMengTianTwoproducingcenters:XuanzhouandHuzhouProducts:”Xuan-bi”“Zhuge-bi““Hu-bi“TheHuWritingBrushTheXuanWritingBrushTheDaiyuexuanWritingBrushTheHoudianWritingBrushInksticksHisto
2、ryofinkAttheinitialstagenaturalinkorhalf-naturalinkwasgenerallyusedduringtheHan,artificialinkappeared."Yumi-mo"producedBeforetheFiveDynasties，theink-producingcenterwasintheNorth,thenitreachedtheSouth.ThemostcelebratedSouthink-stick："Hui-mo"TheagingprocessMa
3、terials:vegetableoilsThequalityisdeterminedbytheagingprocessgradeofinksticks101-Thebestprofessionalqualitycommerciallyavailable102-Verygood,professionalquality103-Good,professionalquality104-Amateur（業(yè)余愛好者）105–higherstudentPaperHistory﹠CategriesinventedbyCai
4、LunInWesternHan,"Fang-ma-tan"paper,"Xuan-quan"paper,"Ma-quan-wan"paper,and"Han-tan-po"paper.AftertheEasternJinDynasty,paperwasextensivelyusedIntheTangandSongDynasties,thepaperproducingindustrywasverythrivingIntheQing“Xuan-zhi”producedinXuanzhou,wasregardeda
5、s"thekingofthepaper"InkslabChineseCultureGrinder（研磨）primitivesociety：pestle（碾槌）togrindpigments（顏料）Han：artificialink-sticksappearedandwerewidelyusedSuiandTang:”Piyong”inkstonehavingcircularlegsMingandQing:lotsoffamousinkstoneproducedFourfamousinkslabGuangdon
6、gDuaninkslab(端硯)ShanxiChengniinkslab（澄泥硯）GuansuTaoinkslab（洮硯）AnhuiXiinkslab（歙硯）XiinkslabTaoinkslabChengniinkslabDuaninkslabUsefullexpressions石墨鉛筆Blackpencil炭筆Charcoalpencil豬鬃筆Hog-hairbrush牛毛油畫筆Ox-hairbrush狼毫Weasel’shairbrush兔毫Rabbit-hairbrush鹿毫Deer-hairbrus
7、hUsefullexpressions墨、油墨Ink色料Pigment水彩畫顏料Watercolor油畫顏料Oilcolor管裝顏料（用錫管盛裝）TubecolorUsefullexpressions書畫用紙Ricepaper/Xuanpaper薄紙（繪畫中用于吸水的）Tissue賬簿紙（用于畫素描和水彩的重磅紙）Ledgerpaper畫布Canvas棉質(zhì)畫布Cottoncanvas羅馬油畫紙RomancanvasUsefullexpressions硯Inkstone端硯（產(chǎn)于廣東肇慶地區(qū)）Duaninksl
8、ab調(diào)色板Pallet調(diào)色碟Color-mixingtrayTreasureourtreasuresThankyou初中數(shù)學(xué)中考復(fù)習(xí)（蘇科版）二次函數(shù)圖像與性質(zhì)（二）考點鏈接二次函數(shù)的解析式：（1）一般式：；（2）頂點式：；（3）交點式：.2．二次函數(shù)通過配方可得，其拋物線關(guān)于直線對稱，頂點坐標(biāo)為（，）.⑴當(dāng)a>0時，拋物線開口向，有最（填“高”或“低”）點,當(dāng)x=時，y有最（“大”或“小”）值是；
