Hi, boys and girls!  ____ （感谢）for your pictures. ____  (在这里)is a photo of my____ （家庭）.This is my grandfather ,Barry. ____  (那个)is my grandmother, Linda. She is 70.Look!What____ (颜色)is her jacket? Oh, it's red. These are my____（父母）.This is my____ (母亲),Jane and this is my father, Henry. And this is my ____ （叔叔）,Paul. He's my father's brother. The girl is my____（堂妹）, Lisa. Look at the boy. He is sad. He ____ (丢失)his books. He is my brother.

如图，已知四棱锥P﹣ABCD，底面ABCD为菱形，PA⊥平面ABCD，∠ABC=60°，E、F分别是BC、PC的中点．

（1）判定AE与PD是否垂直，并说明理由．

（2）设AB=2，若H为PD上的动点，若△AHE面积的最小值为$\frac{\sqrt{6}}{2}$，求四棱锥P﹣ABCD的体积．

正义的基本要求包括（    ）

①不侵犯他人的基本权利                                 ②面对不良社会现象，要勇敢地加以制止 

③面对非正义的行为，能学会理解、宽容     ④要有一颗同情心

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