如图，抛物线.y=-x²+bx+c与x轴交于A（1，0）、B（-4，0）两点，交y轴与C点

(1)求该抛物线的解析式.
(2)在该抛物线位于第二象限的部分上是否存在点D，使得△DBC的面积S最大？若存在，求出点D的坐标；若不存在，请说明理由．
(3)设抛物线的顶点为点F,连接线段CF,连接直线BC,请问能否在直线BC上找到一个点M,在抛物线上找到一个点N,使得C、F、M、N四点组成的四边形为平行四边形,若存在，请写出点M和点N的坐标；若不存在，请说明理由．

Please write ___me and tell me ____yourself.

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1）每处错误及其修改均仅限一词；

2）只允许修改10处，多者（从第11处起）不计分。

    On November 12, 2017, the student in our class paid visit to China Science and Technology Museum.

    At 8:00, we left to China Science and Technology Museum by bus. At 8:30, a guide introduced it to us briefly and told us that what we should pay attention to during we visit. Ten minutes late, we began our visit. Some students took notes carefully as they visited. All the students were amazing at the rapidly achievements in science and technology. Three hours has gone by before we knew it. At 11:30, we returned to our school.

    This visit no only broadened my outlook but also aroused my interest in science and technology.

0.8×5表示____个____。