你只知其一,不知其二。你查一下词典face的不同用法就知道了。这里用现在分词是正确的,用过去分词就成了语法错误了。
韦氏高阶》face
a : to have (something bad or unpleasant) as a problem or possibility : to be confronted by (something)
This is not the first time she has faced adversity.
Because of the drought, thousands of people are now facing starvation.
b : to be a problem for (someone) : to require the attention of (someone)
There were many important questions facing them.
We can't ignore the problems that face us.
你的句子中的face就是第二种用法。