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過去分詞的肯定式與否定式

1. 過去分詞的肯定式就是過去分詞的基本式。如：

He felt himself compelled to bring this action. 他感到自己被迫進行這次訴訟。

We’ll have to get the car repaired before Tuesday. 我們必須在星期二以前把汽車修好。

She had to shout to make herself heard. 她必須大聲喊才能讓人聽見她說話。

Looked at politically, it is an important problem. 從政治上看這是一個重要問題。

No photographer is allowed to shoot the president’s crippled walk. 不許任何攝影記者對總統的跛行拍照。

The excited children are opening their Christmas presents. 激動的孩子們正在把圣誕禮物打開。

Taken in small doses, this drug is completely harmless. 小劑量服用這種藥是完全無害的。

Beaten by the police, sent to jail, Gandhi invented the principle of nonviolent resistance. 盡管受警察的毆打，被投入監牢，甘地卻首創了非暴力抵抗的原則。

2. 過去分詞的否定式是在過去分詞的前面加上否定詞not。如：

Everyone helped, John not excepted. 大家都來幫忙，約翰也不例外。

Not given enough time, he couldn’t finish the job on time. 因為沒有給他足夠的時間，所以他沒能按時完成工作。

Not replaced by any other energy, oil is likely to be used up in the nearest future. 由于還沒其他任何能源可代替，石油很可能在不久的將來被使用殆盡。