1、 in danger：意为“处于危险之中”，侧重表示所处境况。
例句1：Some animals are in great danger.
一些动物正处于极大的危险之中。
例句2：When in danger， the anteater lashes its tail around a branch.
当遇到危险时，食蚁兽会用尾巴甩动树枝。
例句3：Children's lives are in danger every time they cross this road.
孩子们每次过这条马路都面临着生命危险。
2、 in danger of：意为“有……的危险”。
例句4：The building is in danger of collapsing.
这栋建筑有垮塌的危险。
例句5：How many factory workers are in danger of losing their jobs?
有多少产业工人有失业的危险
例句6：Many species of animals are in danger of dying out.
许多动物种类都处于濒临灭绝的危险中。
例句7：As is known to all， the panda is in danger of becoming extinct.
众所周知，熊猫濒临灭绝。
