题目

完型填空3 That day was like any other day in his life. After school Michael walked past the shop in the street corner. He stopped to l the front row of shoes, and he felt sorry for himself. He 2 wanted to have a pair of shoes for his birthday.He walked away sadly and thought of what to tell his mother. He knew she would give him 3 if she could. But he also knew very well she had 4 money. He decided not to go home5 ,as he looked worried and his mother would notice it. So he went to the park and sat down on the grass. Then he saw a boy in a wheel chair. He noticed that the boy已知椭圆的离心率为是上一点．（1）求椭圆的方程；（2）设是分别关于两坐标轴及坐标原点的对称点，平行于的直线交于异于的两点．点关于原点的对称点为．证明：直线与轴围成的三角形是等腰三角形．