题目内容：

根据首字母及汉语提示, 完成下列单词的拼写, 使句意明确, 语言通顺。

One day, a teacher asked his students to p1.（准备）for a test. He gave out the paper. To everyone's s2.（惊奇）, there were no questions, just a black dot（小圆点）. The teacher said, "I want you to write what you see there." The students started writing. At the end of the class, the teacher read them in front of the students. They all d3.（描述）the black dot. The teacher said, "No one wrote about the white part of the paper. Everyone paid attention to the black dot. The same thing happens in our lives. Our life is relaxing with love and care. However, we keep seeing the dark s4.（方面）. The dark dots are very small in our lives, but they are the ones that p5.（污染）our minds."