文言文阅读 ，回答相关问题
咏雪
谢太傅寒雪日内集，与儿女讲论文义。俄而雪骤，公欣然曰：“白雪纷纷何所似？”兄子胡儿曰：“撒盐空中差可拟。”兄女曰：“未若柳絮因风起。”公大笑乐。即公大兄无奕女，左将军王凝之妻也。
陈太丘与友期
陈太丘与友期行，期日中，过中不至，太丘舍去,去后乃至。 元方时年七岁，门外戏。客问元方：“尊君在不？”答曰：“待君久不至，已去。”友人便怒：“非人哉！与人期行，相委而去。”元方曰：“君与家君期日中。日中不至，则是无信；对子骂父，则是无礼。” 友人惭，下车引之，元方入门不顾。

中国古代史学名著《左传》中说：“多行不义必自毙。”下列哪一历史人物的结局可以作为该论断的有力证据（    ）

$\sqrt{18}$=____ 

C

    Next week is Family Learning Week and there will be many activities (活动) at schools in the city.

    There is a very interesting art class at Hadley School. Its name is "Paint with your parents". It's on Saturday, October 28th. It is for anyone with children under 16. It's a two-hour class it begins at 9:15 in the morning

    An interesting thing about this class is one of the teachers, a famous writer. Her name is J.P. Hayward She will read from her new book. Listening to her will give you ideas to use in your paintings.

    A family ticket (票) is $8. That's for four people. Anyone extra (额外的) has to pay (付费) $3.

    If you are interested in this class, please call Mr. Henry. The phone number is 456-3290. I hope you all enjoy Family Learning Week.

根据材料内容选择最佳答案。

如图，在直角梯形ABCD中，AD∥BC，∠A=90°，AB=BC=4，DE⊥BC于点E，且E是BC中点；动点P从点E出发沿路径ED→DA→AB以每秒1个单位长度的速度向终点B运动；设点P的运动时间为t秒，△PBC的面积为S，则下列能反映S与t的函数关系的图象是(  )