<例句>
I must ask to be excused.
我得请求离开一会。
<语法分析>
不定式的被动形式用作宾语，此外还可用作复合宾语、定语、状语、主语和表语等。动名词的被动形式也可担任某些句子成分，如可作主语、宾语或介词宾语等。现在分词有时用于被动形式，可构成复合宾语，也可以作定语或状语等。过去分词本身就有被动意思，可以和系动词构成谓语，还可构成复合宾语和用作状语等。
<触类旁通>
(1) She begged to be forgiven.
她请求宽恕。
语法分析：不定式的被动形式用作宾语。
(2) She didn't wish the subject to be mentioned in the letter.
她不希望在信里提及这个问题。
语法分析：不定式的被动形式用作复合宾语。
(3) Being offered such a job was sheer good luck.
被给予这样一份工作纯属幸运。
语法分析：动名词的被动形式作主语。
(4) I watched the cargo, being hoisted on board.
我看着货物被吊到船上。
语法分析：现在分词的被动形式构成复合宾语。
(5) Being well looked after, the baby was in perfect health.
由于照顾的好，孩子的身体很健康。
语法分析：现在分词的被动形式用作状语。
(6) I don't want anything said about this.
我不希望谁谈及此事。
语法分析：过去分词构成复合宾语。
<巩固练习>
(1) He didn't like to _____[treat] as a child.
(2) I'd like this room to _____[redecorate].
(3) His ambition was to _____[make] a cinema actress.
(4) She was far from _____[satisfy].
(5) I saw him _____[carry] away on a stretcher.
(6) _____[ask] to give a performance, she couldn't refuse.
(7) _____[frustrate], he returned to his homeland.
<参考答案>
(1) be treated (2) be redecorated (3) be made (4) being satistied (5) being carried (6) Being asked (7)Frustrated
