Analysis of test questions: Bad temptation, like a virus, will affect physical and mental health, academic progress and induce crimes. The example of junior high school student Huang illustrates this point. Therefore, the D option is the correct answer. The other three options are wrong in themselves and should be excluded.

Comments: This topic combines the experiences of students of the same age to investigate the harm caused by bad temptations, which can bring some impact to students' thoughts, thus prompting students to treat the temptations around them correctly, consciously resist bad temptations, and achieve the purpose of ideological and moral education.