题目

词汇：根据句意及首字母或中文提示，完成下列单词的拼写 1. Eating too much and doing little exercise makes us u__________________. 2. It's very important for the students to keep their b________________ diet. 3. Reading and speaking every day can i_______________ your English. 4. Success（成功）d_____________ on hard working and more time. 5. She said she was having a s_________ party for Lana. 6.His father disagreed with his _________(决定). 7.Lucy ___________（争论）with her best friend at this time yesterday. 8. Have you __________(曾经) visited th如图，矩形OABC的边OC，OA分别与x轴，y轴重合，点B的坐标是（，1），点D是AB边上一个动点（与点A不重合），沿OD将△OAD翻折，点A落在点P处．（1）若点P在一次函数y=2x-1的图象上，求点P的坐标；（2）若点P在抛物线y=ax2图象上，并满足△PCB是等腰三角形，求该抛物线解析式；（3）当线段OD与PC所在直线垂直时，在PC所在直线上作出一点M，使DM+BM最小，并求出这个最小值．