根据短文内容，判断正误。

    I have a good family. There are four people in my family. They are my father, my mother, my sister and I. My father is 40. He is a Chinese teacher. My mother is 38. She is an English teacher. They work in different schools. My sister's name is Li Fang. She is ten. We are in the same school, but in different grades. We have a nice picture of our family. It's on the wall. Look! Our father and mother are on the chair, and we two stand behind them.

如图，小华用长为3.2 m的竹竿做测量工具测量学校旗杆的高度，移动竹竿，使竹竿、旗杆顶端的影子恰好落在地面的同一点．此时，竹竿与这一点相距8m、与旗杆相距22 m，则旗杆的高为(        )

生物圈是地球上最大的生态系统，它包含各种各样的生态系统．其中，有“绿色水库”之称的生态系统是____ ．

P是四边形ABCD内一点，PA=PB=PC=PD，又AB=CD，试确定四边形ABCD的形状，并加以证明．

读下列古诗，按要求答题。

                                                                                                  润州听暮角①
                                                                                                 （唐）李 涉
                                                                                 江城②吹角水茫茫，曲引边声怨思长。
                                                                                 惊起暮天沙上雁，海门斜去两三行
      【注】：①文宗时，诗人曾被流放康州，此诗很可能是作于迁谪途中。②江城：临江之城，即润州。