The seriously ill man thinks it doesn`t matter how he will die, but what matters much is how he lives. 第二个宾从 的引导词是什么，what 吗？但what 引导的事主语从句 is后面是how引导的表语从句，整个是think的宾从。但是前面已经有一个宾语从句 it doesn`t matter how he will die，第二个宾语从句的连接词就不应该省啊
这句话的成分是这样的：The seriously ill man是主句中的主语， thinks是主句中的谓语动词 ；it doesn`t matter how he will die是第一个宾语从句, but是连接第二个宾语从句的转折词。 what matters much is how he lives.是第二个宾语从句，但是连接词就是what，没有省呀。 所说的第二个连接词不省是指that，如He thinks Tom is his good friend and that he can do everything for Tom.