在大学英语四级考试（CET-4）中，写作和翻译部分的满分是各占15分，总分为30分。一般来说，如果能写出较为流畅的文章，并且语法错误较少，通常可以获得较高的分数。具体来说：

- 写作：一篇完整的文章，结构清晰，语言通顺，用词准确，没有严重语法错误，一般可以获得12分以上。

- 翻译：能够准确传达原文的意思，句子通顺，表达自然，同样可以获得12分以上。

以下是两篇各约150字左右的文章示例，分别用于写作和翻译练习：

写作示例：The Importance of Reading

Reading is an essential part of our daily life. It not only enriches our knowledge but also broadens our horizons. Through reading, we can learn about different cultures, histories, and ideas from all over the world. Moreover, reading helps improve our language skills, especially in vocabulary and grammar. Books, newspapers, and online articles provide us with valuable information that can be useful in both personal and professional settings.

In addition, reading can be a great way to relax and reduce stress. Many people find it enjoyable to lose themselves in a good book after a long day at work or school. Therefore, making time for reading every day can greatly benefit our mental health and overall well-being.

To sum up, reading plays a crucial role in our lives. It is a lifelong habit that everyone should cultivate. By reading regularly, we can continuously grow and develop into better individuals.

翻译示例：

原文：

"Life is like a journey. You never know where you're going until you reach your destination."

译文：

“人生就像一场旅程。你永远不知道自己要去哪里，直到抵达目的地。”

希望这些示例对你有所帮助！如果你有其他问题或需要进一步指导，请随时告诉我。