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第二节One possible version:“Ava！”Bauer yelled,trying to removehis shoes."Stay by the car!"Observing the bay,Bauer thought it wasdangerous to jump from this height into such shallow water.Worried about the safety of the girl with eager eyes,he ulti-mately had the idea of climbing from the railing into the wa-ter.A moment later,he landed below the bridge.Scarcelyhad Bauer bounced off the sandy bottom safely when hecould do nothing but rush to the girl.When the little girl was less than 10 feet away,Bauerswam to her quickly.Soon Bauer reached the girl,andwithout hesitation he lifted her out of the water.After ac-cessing her condition and feeling her heart rate slowly re-turn to normal,Bauer judged the baby was unhurt and hebreathed a sigh of relief.Now,the baby started coughingup a lot of water.He patted her on the back for about fiveminutes until a boat pulled up and saved Bauer and the lit-tle girl aboard.Inspired by that action,Ava intended togive a hand whenever and wherever.

16.8√2【解析】本题考查动点的轨迹，考查数形结合的数学思想以及运算求解能力设P则P的轨迹方程为尼+=2，令y=0,得曲线T与y=0交于A(2√2,0)，C(-2√2,0)，令x=y,得曲线T与x-y=0交于B(2,2),D(-2,-2),因为OA=|OB|=2W2,所以S=4SoB=4×7X2W2×2,W2sin不=82.