C
题意:
谁想到狮子能保护树木不受人类伤害呢?
A.第一棵树。B.小动物。C.聪明的老树。D.伐木工。
细节理解题。根据第四段A wise old tree who was listening to the friends said, "They might be dangerous, but they are keeping us safe from woodcutters. No woodcutters dare to come into the forest which has lions."一棵聪明的老树听到了他们的话,说:“他们可能很危险,但他们可以保护我们不受伐木工的伤害。 没有伐木工敢进入有狮子的森林。” 可知,聪明的老树想到狮子能保护树木不受人类伤害。故选C。