Lines 1-18 Which words and phrases evoke sorrow or joy? Describe the effect

on the reader

Unclear question. But I infer you are referring to the poem "Oh Captain my Captain" written in remembrance of Abraham Lincoln.

Explanation:

Note that, in the poem the Auden says, "sorrow and joy, are one", thus he was referring to the death of the President as bringing joy based on his accomplishments in life and it sorrow due to the fact he was going to be missed for a long time.