keep doing sth和keep on doing sth区别是什么？
从释义，用法，使用环境，形象和影响范围五个维度分析keep doing sth 和keep on doing sth的区别，详细内容如下。
1. 释义区别：
- "Keep doing sth"表示继续进行某个动作或保持某个状态。
- "Keep on doing sth"表示持续不断地进行某个动作或保持某个状态。
例句：
- She kept studying late into the night. (她继续熬夜学习)
- They kept on singing even after the concert ended. (尽管音乐会结束了，他们继续唱歌)
2. 用法区别：
- "Keep doing sth"用于表示继续进行某个动作或保持某个状态的一般性描述。
- "Keep on doing sth"用于强调持续不断地进行某个动作或保持某个状态。
例句：
- He kept practicing the piano every day. (他每天都继续练习钢琴)
- She kept on talking about her new job. (她不停地谈论她的新工作)
3. 使用环境区别：
- "Keep doing sth"适用于口语和书面语，可用于各种日常场景和语境。
- "Keep on doing sth"通常在口语中使用，强调连续持续进行某个动作或状态。
例句：
- He kept running despite his exhaustion. (尽管筋疲力尽，他还是继续跑)
- She kept on laughing at the funny jokes. (她一直在笑那些有趣的笑话)
4. 形象区别：
- "Keep doing sth"表示持续进行某个动作或状态，侧重于行为或状态的延续性。
- "Keep on doing sth"则强调持续不断地进行某个动作或保持某个状态，强调连续性和坚持性。
例句：
- He kept practicing the guitar every day to improve his skills. (他每天继续练习吉他来提高他的技巧)
- She kept on working hard despite the challenges. (尽管面临挑战，她仍然坚持努力工作)
5. 影响范围区别：
- "Keep doing sth"的影响范围相对较广，可用于各种情况下持续进行某个动作或保持某个状态。
- "Keep on doing sth"的影响范围相对较窄，更加强调连续性和持续性。
例句：
- They kept dancing all night at the party. (他们在派对上整晚都在跳舞)
- He kept on complaining about the noise outside. (他一直在抱怨外面的噪音)
