开篇点明主题

"The four seasons are a beautiful cycle that we experience throughout the year."

描述季节特点

"In China, there are four seasons in a year: spring, summer, autumn, and winter."

个人感受

"I love all the seasons, because they are beautiful."

对比季节

"Each season has its own unique charm and beauty."

引入故事或传说

"It is said that the jade emperor has four daughters, called the four seasons girls in spring, summer, autumn, and winter, who are in charge of the alternation of the four seasons."

这些开头都可以根据具体的作文内容和风格进行调整，以更好地引入主题和展开描述。