1.Like every other person on that flight, he was desperate to live, which makes his final act so stunning.

【难句释义】His final act was amazing because he also valued his life and was desperate to live, which makes his final act so atunning.

2.For at some moment in the water he must have realized that he would not live if he continued to hand over the rope and ring to others. He had to know it, no matter how slow the effect of the cold.

【难句解析】状语从句no matter how slow the effect of the cold省略了could be 或might be，同时还可以这样表达however slow the effect of the cold(might be/could be)。