计算

（1）（﹣1）²⁰¹⁵+（﹣$\frac{1}{2}$）^﹣2﹣（π﹣3.14）⁰

（2）（15x³y⁵﹣10x⁴y⁴﹣20x³y²）÷（5x³y²）

如图甲依次为桃的花、枝条和果实的结构示意图，请据图回答：

    I think 1likes dogs. Dogs are our friends. My friend Tomson likes dogs very2 . He has a big dog. 3name is Bobo. He's bright(聪明的). Every Saturday aftemoon Tomson takes Bobo for a long walk in the street. Sometimes Tomson takes Bobo to the park. Tomson4the frisby and Bobo catches it in the air. Bobo can open the door and close the door. When Tomson goes to school, Bobo stands in5of the door and waits6Tomson coming. When he sees Tomson, he7 the door and catches his bag. What a bright dog!

    I like Bobo. I often go to Tomson's home to play8 him. I often give Bobo  9  to eat. I want to have a dog, too.