sb is believed to do/to be doing/to have done句式归纳 |
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sb is/was believed/said/reported/thought/known to do/to be doing/to have done sth. 这个句型中的不定式to do形式不表示谓语时间之后的将来事件,而是表示谓语时间存在的状语或习惯。所以to do形式要么是静态动词,要么是动态动词表示习惯意义,而不是事件意义。例如;He is believed to be a good writer. (静态动词) He is believed to get up at 5 o'clock every morning. (习惯) 该句型用to be doing表示谓语时间正在发生或尚没有结束的事件。例如:He is believed to be writing a new book. (同时的事件)。 该句型用to have done表示谓语时间之前发生过的事件,或从过去持续到谓语时间的状态(需要与持续时间状语连用)。例如:He is believed to have sold his house. (以前的事件) He is believed to have been a doctor for 30 years. (持续到谓语时间的状态)。 该句型通常不用to do形式表示谓语时间之后的将来事件。例如:He is believed to leave tomorrow.(误) 表示将来的事件改用如下句型: It is believed that he will leave tomorrow. People/They believe that he will leave tomorrow. |
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