①众人在名利色权的诱惑下多迷失了生活的方向，只有那些心中充满正气、禁得住考验的人方可抗颜为师。

②谁都知道这位先生玲珑剔透，在生意场真是如鱼得水般，开拓出了一片属于自己的天地

③20世纪40年代这位犹太艺术家长居上海，他的画作以卡通的形式大致再现了当时这座城市繁华生活的吉光片羽，让人领略到当时“东方巴黎”的风貌。

④只见先生不打草稿，信笔泼墨，一丛墨竹便跃然纸上，围观者无不人言啧啧。

⑤这几个大学生初出茅庐、能力不足，但是在大学生就业创业基地的帮助下，他们牛刀小试，干得还不错。

⑥钱学森是中国航天科技事业的先驱和杰出代表，他胸怀坦荡，光风霁月，完全应该成为国民心目中当之无愧的英雄。

阅读理解

    Good morning．Welcome to our school!

    My name is Hou Li，a history teacher.I'm your guide today．Look!Our big playground lies in the middle of the school．On the left of it are two black classroom buildings．There are thirty classrooms in each building．We use computers to help with teaching．It's quick and saves much time．We also put important information on the Internet．so our students can read it at home．Of course,they do their homework on the computers too，just like your students in America．We're going to join an IT lesson at nine o'clock there．

    On the right are three buildings：the office building,the dining hall and the library．The dining hall is orange．Six hundred students can eat in it at a time．Today we are going to have lunch there．The library is a popular place．There are many kinds of magazines and newspapers and hundreds of books for students and teachers．

    Let's have a rest near the office building and then go to the IT lesson．

根据材料内容选择最佳答案。

如图所示，由已知条件推出结论正确的是（ ）

已知椭圆$\frac{x^2}{a^2}+\frac{y^2}{b^2}=1\left(a>b>0\right)$的离心率$e=\frac{1}{2}$，右焦点为$F\left(c,0\right)$，方程$a{x}^2+bx-c=0$的两个实根$x_1,x_2$，则点$P\left(x_1,x_2\right)$（   ）