在下面一段文字给①②③处补写恰当的语句，使整段文字语意完整连贯，内容贴切，逻辑严密。每处不超过16个字。

材料：T型支架上，细绳拴着一颗小球。这是物理课上常见的实验装置——单摆。王亚平将小球拉升至一定高度后放掉，小球像着了魔似的，用很慢的速度摆动。随后，王亚平用手指轻推小球，小球开始绕着支架的轴心不停地作圆周运动。在地面，单摆的运动周期与摆的长度、重力和加速有关。但在失重的状态，没有了恢复力，           ①            。这时，细绳并没有给球拉力。手推小球，相当于给了小球一个初始速度，同时②              ，细绳拉力平衡离心力，小球便绕着支架的轴心做圆周运动。如果没有细绳的拉力，小球就做匀速直线运动。而在地面，空气的阻力使物体的速度越来越慢，③               。

智者学派的人文主义倾向表现在（      ）
①普遍的怀疑神的存在            
②否定神的意志是衡量一切的尺度
③认定人的感觉是判定一切的准绳    
④对人的尊严和人生价值的关注

    Mrs. Black has three daughters. Sue is the ____ (young) of the three. She is ____(outgoing) than her two sisters. She always tells some funny jokes ____ (make) people laugh. At school, her teacher thinks that Sue is the ____ (hard-working) student and that she does thing the ____ (carefully).

    Sue has a dream she want ____ (be) a reporter. To achieve (实现) her dream, Sue makes a plan. First she decides ____ (join) the writing Club to practice writing. Second, she tries ____ (talk) with her penfriends in different languages. To meet more people and talk with them, Sue plans ____(work) in some public (公共的) places. I'm sure she will be one of the ____ (famous) reporters in the world. Good luck to her!