A prepositional phrase is  a group of words beginning with a preposition.

We  can use prepositional phrase the way we use adjectives. We can describe nouns with prepositonal phrases. When a prepositioanl phrase is an adjective phrase , it tells us what kind , how many, or which one.

Prepositional phrases can also be adverb phrases. When a prepositional phrase is an adverb phrase is an adverb phrase, it tells us how, when or where .

Figurative laguage (比喻)

Similes use "like" or "as" to compare two things .

Metaphors make a stronger claim. Smilies say two things are similar. Metaphors say two things are the same.

A hyperbole(夸张法) is an exaggeration（夸张；夸大）.

I'm so hungry I could eat a horse.

Henry was the fastest person alive.

Personification(拟人) : They compare non-human things to humans.

The moon's light guided me in the dark.

The wildfire ran through the forest.