把下列词语补充完整，再按要求归类。

1.(      )山峻岭      (      )风暴雨      见义(      )为      雪中送(      )

   (      )发童颜      痛心(      )首      心(      )诚服      神(      )奕奕

2.描写自然环境：                                                                                                       

   描写人物外貌：                                                                                                       

   描写人物品质：                                                                                                        

   描写心理活动：                                                                                                       

在黄土高原上行走，本来双方距离很近，却常要绕道远行，这是因为黄土高原[ ]

A．千沟万壑

B．河道纵横

C．地势平坦

D．沼泽遍布