Why does the narrator say that "the beating of the old man's fury as the beating of a drum stimulates the solider into courage? "

To convey that the rise in the old man's heart rate fueled his anger.

there are number of topics. you can pick any one of these topics:

a phrase is a set of word that make a sense, an expression formed by two or more words.

" teacher´s dictum on the possession of human "

" made a pile practicing "

" lived to an impressive age and dies "

a clause, in a grammar way is a series of words that have a complete meaning.

" was irritated by the persecution of those who called themselves "