In recent years , with the development of science and technology ,80 percent of all homes in China have satellite TV , offering as many as 50 channels .
with的复合结构作状语吗?in recent years又是什么?为什么后面可以接with......主语是all homes的话,Offering这个是TV的什么成分?
学好从句之前学好句子的成分很重要。