语法总结
一般现在时和现在进行时的对比
I never get up early on Sundays 说的是习惯；I'm still having breakfast 说的是说话当下正在发生的动作。两种时态在同一篇里形成鲜明对比。
相似句：
- She usually walks to school, but today she is taking a bus.
- I often read at night, but now I am writing a letter.
until 表示动作持续到某个时间点
stay in bed until lunchtime 说明“躺着”这个动作一直持续到午饭时间；若是否定句，not ... until ... 则是“直到……才……”。
相似句：
- He waited until midnight.
- She didn't leave until her father came back.
现在进行时可表示按计划的将来
I'm coming to see you 不是“我现在正在路上”的直译，而是“我就要去看你”，这类用法常见于 come, go, leave, arrive 等位移动词。
相似句：
- We are leaving tomorrow morning.
- My uncle is arriving this evening.
What a ...! 感叹句
What a day! 属于 What a/an + 名词 的感叹句型，常带明显语气色彩；语境足够强时，形容词可以省略。
相似句：
- What a pity!
- What a wonderful idea!