This is the first literacy text in the second volume of the first grade. It focuses on the theme of "Four Seasons" and combines pictures and texts to present the weather phenomena and natural scenery characteristics of the four seasons. The full text has 8 words and 8 phrases, divided into four groups. The first and third groups of 8 words reveal the representative weather and scenery of the four seasons, while the second and fourth groups of 8 phrases tell us the characteristics of these scenery. 8 words have their own inherent rules in word formation. The first group of four words is "spring breeze, summer rain, autumn frost, winter snow". The first word is the abbreviation of the four seasons, and the second word is the typical weather phenomena of the four seasons. The second group of four words is "green grass, red flowers, swimming fish, and flying birds." Although the first words are all modifications, "green and red" modify "flowers and grass" from the perspective of color, which is consistent with the characteristics of plants. "Swim, fly" is a modification of "fish, bird" from the perspective of movement, which is consistent with the characteristics of animals. When teaching, teachers should guide students to discover the word formation rules of these words, help students understand and master them, and learn to transfer and use them according to the characteristics of things. For example, you can say words such as "green trees, ivy, reptiles".