Answer:
The part of the excerpt from John Keat's poem "Endymion" that contains a similie is below.
"Into my being, and each pleasant scene
Is growing fresh before me as the green
Of our own vallies: so I will begin."
Step-by-step explanation:
A similie is used to compare two things using the words "like" or "as." In this passage, Keat is comparing what is growing inside of him to the green valleys. Both are fresh.
The only other use of "as" or "like" (to indicate a similie) in this passage of the poem is used in the section below.
"Its delicate amber; and the dairy pails
Bring home increase of milk.
And, as the year
Grows lush in juicy stalks, I'll smoothly steer"
However, here as is not used as a similie to compare, but simply as a conjunction to connect clauses in the section.