On the one hand, <u><em>your</em></u> is a possessive and means that something belongs or is related to "you", whoever that subject is. On the other hand, <em><u>you're</u></em> is a contraction. It is short for "you are" that includes the personal pronoun <em>you</em> and the conjugated verb <em>to be</em>. Therefore, the sentence that accurately uses the homophones "your" and "you're" is: Don’t forget to pick up your homework before you leave.
"Nature's first green is gold"
The first half of this line is a metaphor. It compares the beginning of spring and new life to the color gold. Gold is also symbolic of something that is good or valuable.
"her hardest hue to hold"
This half of the line is personification. Personification is giving nonhuman things humanlike traits. In this line it gives Nature, a nonhuman, the ability to hold, which is a human trait.
These lines are describing when things begin in Nature. Most often this occurs in Spring. The flowers begin to shoot up from the ground, and new animal babies are born. This is the time where everything is golden. Things are new, exciting, and innocent. Unfortunately, this doesn't last, which is why it's hard to hold. Things grow up and change. They gain more knowledge and lose their innocence they once had.
Well..
For example, “Life is a box of chocolates.” An analogy is saying something is like something else to make some sort of explanatory point. For example, “Life is like a box of chocolates—you never know what you're gonna get.” You can use metaphors and similes when creating an analogy.