"Be nervous of" 是一个英语短语，意为“对...感到紧张、害怕或不安”。这个表达通常用来描述一个人面对某种情况、人或事物时，内心产生的恐惧或焦虑情绪。这种恐惧可能源于对未知的担忧，也可能是因为预期可能会有不好的结果。

**用法：**

"Be nervous of" 在句子中通常作为动词短语使用，可以与名词、代词或动名词搭配。例如：

1. She is nervous of public speaking. (她害怕公开演讲。)

2. They were nervous of the consequences of their actions. (他们对自己行为的后果感到紧张。)

3. The child was nervous of the dark. (这孩子害怕黑暗。)

**例句：**

1. Before the exam, I'm always nervous of not performing well. (考试前，我总是担心自己表现不佳。)

2. He's not used to big crowds, so he's naturally nervous of attending concerts. (他不习惯人多的场合，所以自然害怕参加音乐会。)

3. The new employee seemed nervous of his boss's critical feedback. (新员工似乎对他老板的批评反馈感到紧张。)

4. She was nervous of making a mistake during her presentation. (她在做报告时害怕犯错。)

5. The investors are nervous of the volatile stock market. (投资者对波动的股市感到紧张。)

**同义词辨析：**

1. **Afraid of**: 这个短语与 "be nervous of" 相似，都表示对某事的恐惧。例如："She is afraid of spiders." (她害怕蜘蛛。)

2. **Scared of**: 与前两者类似，"scared of" 也表达恐惧之情，但语气更强烈，常用于口语。例如："The child was scared of the thunderstorm." (孩子害怕雷暴。)

3. **Anxious about**: 这个短语更强调内心的忧虑和紧张，而非单纯的恐惧。例如："I'm anxious about the meeting tomorrow." (我对明天的会议感到焦虑。)

4. **Tense about**: 表示对某事的紧张和不安，尤其在期待或等待的结果可能对个人产生影响的情况下。例如："He was tense about the job interview." (他对求职面试感到紧张。)

5. **Fearful of**: 与 "afraid of" 类似，但语气稍微正式，可用于书面语。例如："They were fearful of the potential risks." (他们害怕潜在的风险。)