（1）写出图（一）中天气符号代表的天气名称：
A                        B                        C                        D                         E                         F                     
G                       H                         I                         J                         K                          L                    
M                       N                        O                        P                   

（2）风向是风的                   ，有“                 、                  、                   、                  ”四个基本方向。风向为“北”，说明风来自                 。                 是风的强弱，共分            级，级数            ，风力                  。