-"Is Bob still performing?" ❌
-"I'm afraid not. He is said ____ (leave) the stage already as he has become an official."
answer
to leave ❌ to have left ✅
首先,leave作“离开”讲时是不及物动词,没有被动形式;
其次,句中的already表示完成概念;
最后,be said to do表示“据说”,其后接to do形式;综合之下故填表示主动兼完成的to have left。
“鲍勃还演戏吗?”“恐怕没有,据说他已经离开舞台成为一名官员了。”
🌟 彻底解析:为什么必须用 to have left?
🔍 核心语法规则
固定结构:be said to do(据说做某事)
- 根据时间状语 already(已经)可知,"离开舞台"动作 已完成 → 需用 不定式完成式:to have left
- 对比:
He is said to leave the stage.
(据说他将离开 → 动作未发生)
He is said to have left the stage.
(据说他已离开 → 动作已完成)
错误答案分析
- 填 to leave ❌:
忽略时间副词 already,无法体现动作的完成性,导致时态矛盾
- 填 to leave ❌:
⚡ 高频考点总结
📚 不定式完成式的使用场景
- 动作先于主句谓语发生:
She seems to have forgotten the meeting.
(她似乎忘了会议 → 忘记发生在“看似”之前) - 搭配完成时间状语(already, ever, just 等):
He is believed to have arrived already.
(据信他已到达)
📝 强化训练
- The painting is reported ______ (sell) for $1 million.
answer
to have been sold
(画作被报道已售出 | 被动 + 完成)
- The scientist is known ______ (discover) the theory in 2020.
answer
to have discovered
(已知科学家在2020年发现理论 | 动作明确完成)
- They are said ______ (travel) to 30 countries so far.
answer
to have traveled
(据说他们已旅行30国 | so far 强调累积完成)
💡 口诀记忆
"be said 后接完成式,already 出现别忘记!"
(类似动词:be believed/reported/known + to have done)
