英语成分迷惑,定语从句?

问题描述:

英语成分迷惑,定语从句?
The poisonous gas emitted  from vehicles undermines our lungs
The quality of our life resulting from the improvement of technology and science has already transformed
句1中的emitted,和句2中的resulting,分别是什么成分?在什么时候用主动,什么时候用被动?

句1:emitted from vehicles 是修饰gas的定语,gas是被emit的,所以用被动.句2:resulting from the improvement of technology and science 是修饰quality的定语,这里用主动与result from短语的特点有关,A result fro...