The people present at the meeting were annoyed with the tedious speech.
The people who wanted to attend the meeting were surprised by the announcement of the adjournment without day.
四.从修饰词来区分
1.在英语表达中,过去分词具有形容词性质,因此可用程度副词more,quite, rather,very等修饰。凡是能用这类副词修饰的过去分词多为系表结构。例如:
Her look was quite amused.
After working the whole morning,we were very tired.
2.如果-ed分词的结构中由时间状语、地点状语、原因状语或方式状语来修饰整个句子,表示动作的持续性,反复性,这时这个句子就是被动语态。例如:
The dam is completed.
The dam had been completed within two months.
He was wounded.
He was wounded in the battle.
五.通过时态来区分
系表结构中的动词be为系动词,多用于一般现在时和一般过去时。偶尔在系表结构中也可见到一般将来时和现在完成时。而在被动语态结构中的动词be是助动词。除了很少用于完成进行时和将来完成时之外,可以用各种时态。
I shall be much obliged to you for an early reply.
The house is being built by the river.
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