阅读理解。读文章，判断正（正确）误（错误）

    Tomorrow will be Sunday. My friends and I will do lots of things. Mike will go fishing with his grandpa. Mary will go shopping with her mum. Bob will play football. Jim likes swimming. He will go swimming. I'm going to visit the Great Wall. I will take some photos.

已知a²+a=1，则代数式3-a-a²的值为____.

寻幽居不遇

庄翱

满庭花落迷行路，绕院泉声写半山。

向暮此中回首去，洞门深处鸟关关。