目录 第一部分说明文 第一单元 1.遥感 沙漠里的奇怪现象 336 3.古代建筑艺术的精英一一塔 芙蕖· 5.会飞的“花朵” 第二单元 6.海洋与生命… 7.菊花 479 8.景泰蓝的制作 9.黄鹤楼 10.说居庸关 第三单元 11.桥的运动 223 12.南州六月荔枝丹 13.现代自然科学中的基础学科 14.我们肚子里的食客………… 15.谈谈记忆 第四单元 16.眼睛与仿生学 17.神奇的极光 18.《梦溪笔谈》两则 444 19.蝉 20.走向21世纪的机器人1 目 录 第一部分 说 明 文 第一单元······································································································3 1．遥感··································································································3 2．沙漠里的奇怪现象·················································································6 3．古代建筑艺术的精英——塔······································································8 4．芙蕖··································································································9 5．会飞的“花朵”···················································································12 第二单元·····································································································14 6．海洋与生命 ························································································14 7．菊花·································································································17 8．景泰蓝的制作······················································································19 9．黄鹤楼······························································································23 10．说居庸关··························································································26 第三单元·····································································································29 11．桥的运动··························································································29 12．南州六月荔枝丹 ·················································································30 13．现代自然科学中的基础学科····································································32 14．我们肚子里的食客···············································································34 15．谈谈记忆··························································································35 第四单元·····································································································38 16．眼睛与仿生学····················································································38 17．神奇的极光·······················································································40 18．《梦溪笔谈》两则················································································43 19．蝉··································································································47 20．走向 21 世纪的机器人···········································································49