This sentence compares Polaris to a street lamp. "Polaris refers to a street lamp, which always hangs high in the north of the sky" comes from If You Get Lost in the Wild, which is a text that introduces knowledge of nature and broadens students' horizons. This paper introduces four kinds of natural compasses to people in the form of poetry and hypothetical tone: sun, Polaris, tree and snow.

"If you get lost in the wild" original:

If you get lost in the wild, don't panic.

Nature has many natural compasses that will help you find your way.

The sun is a faithful guide. It gives you directions in the sky.

At noon, it is in the south, and the shadows on the ground point to the north.

Polaris is a street lamp, always hanging high in the north.

If you can recognize it, you won't trespass in the dark.

Enjoy if you get lost in the wild.

The first section summarizes that nature has many natural compasses to stimulate reading expectation. The second to fifth sections introduce the four natural compasses of the sun, Polaris, tree and snow in parallel structure. The sixth section not only points out the topic, but also points out the theme of the poem, and cooperates with the beginning to tell students that there is a lot of knowledge hidden in nature and encourage students to go to nature, observe carefully and think more.

The author also pays attention to using different words to express the same meaning, such as "distinguish, distinguish, recognize" and "help, help and point out", which not only avoids language repetition, but also makes the article interesting. In addition, the last sentence of each paragraph of this poem rhymes and is catchy to read.