2019年三年级语文下册第三单元10纸的发明(第2课时)练习题新人教版.docx

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110 纸的发明【课堂作业新设计】一、多音字组词xin () bin () chun () 鲜 便 传xin() pin() zhun()二、读读想想。1.古时候,纸没有发明之前,我们的祖先把字刻在()或()上,或把字刻在()上。2.后来人们把字刻在()和() ,把这些()和()用绳子穿起来,就成了( ) 。3.后来人们就把字写在()上,这样就()了,可是这样的书价钱(),很少有人用,不能() 。4.()时期,人们懂得了用()造纸,但是()比较粗糙,不好书写。三、为什么蔡伦改进的造纸术被传承下来了?2参考答案一、 xin (新鲜) bin (方便) chun (传说) 鲜 便 传xin(朝鲜) pin(便宜) zhun(自传)二、1.古时候,纸没有发明之前,我们的祖先把字刻在(龟甲)或(兽骨)上,或把字刻在(青铜器)上。2.后来人们把字刻在(竹片)和(木片) ,把这些(竹片)和(木片)用绳子穿起来,就成了(书) 。3.后来人们就把字写在(帛)上,这样就(轻便)了,可是这样的书价钱(太贵),很少有人用,不能(普及) 。4.(西汉)时期,人们懂得了用(麻)造纸,但是(麻纸)比较粗糙,不好书写。三、因为蔡伦造的纸轻便又好用,原料易得,价钱又便宜,满足多数人的需要。3

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