1 句型 there is/are .to do...
2 固定搭配 compared with. 和...相比
The lawyer listened with full attention, ()to miss any point .
trying not ;to try not
作伴随状语,用分词形式.主动关系,就用现在分词. to do 表目的状语
3 being 后面加形容词或过去分词,做原因,伴随等状语,还是分词短语的范畴
4 表目的,用to do 选c
5 凡是分词短语作后置定语的,一般都可以变为定语从句形式