一、(1)树虎和北极鼠的善良表现在___________________________________.(2)沙龙兔的善良表现在__________________________________.(3)人类对待树虎和北极鼠的残忍表现在_______________________________.(4)人类对待沙龙兔的残忍表现在___________________________________.二、(1)第7段中的“这”指代__________________________________________.(2)细细品读第⑧,⑨段,写下你的阅读体会.(60字左右)________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________