21世纪小小百科(科技卷)
2000-3-1
浙江教育出版社
蒋 放,陈福民,顾葆春,沈美萍,张晓媛,汝茵佳,虞永平
139
《21世纪小小百科（科技卷）》是一本献给孩子们的小小百科。在这里面，呈现的是一个神奇的大千世界和我们为孩子打开智慧之窗的爱心。我们产生写这本书的愿望，那是因为我们的面前总在扑闪着一双双孩子们好奇的眼睛，他们正那么惊讶地看着并幻想着这个千奇百怪的世界。
一、改变人类生活的发明1.文明的开始——火与石2.农业的发展——铁木农具3.伟大的贡献——四大发明4.神奇的力量——蒸汽机5.全新的动力——电气化6.聪明的脑袋——计算机二、食品与服装的加工技术1.美味食品及其加工2.漂亮服饰及其制作三、玩具和日常用品1.启迪智慧的玩具2.功能多样的文化用品3.丰富生活的家用电器四、房屋和桥梁建筑1.各具特色的房屋2.横跨空中的桥梁五、交通工具1.奔驰大地的汽车2.风驰电掣的火车3.乘风破浪的轮船4.翱翔蓝天的飞机六、信息传递技术1.传播广泛的书报2.四通八达的邮电通信3.迅捷形象的广播电视4.未来世界的信息技术七、探测宇宙的空间技术1.飞向广阔的太空2.探索神秘的宇宙3.未来的太空世界
against large ones with sticks and stones.Later， by living and working together，theybegantoliveingroups，thusbecoming primitive men.Primitive menwere able to strike stones into stonewares，grind the bones of wild animals into boneneedles with which they sewed animalskins into clothes.It took primitive men a very long timeto find two ways of making fire： one is todrill a piece of sharp wood against another the other is to beat or strike with flints.With fire， they could eat cooked food atany time. In working， they also learned tohunt and fish with nets made of ropes， totame and raise livestock， and to plantcrops.This unit is to give children basicknowledge about the process of humandevelopment and help them understandthat the use of fire and stonewares was thefirst step towards civilization.
