考点三、考查过去分词用作状语

过去分词用作状语的典型特征是：表被动，可视为其前省略了“主语（即主句主语）+助动词be”。这类过去分词（短语）通常可根据具体的语境转换成相应的状语从句——即表原因的过去分词短语可转换成原因状语从句，表条件的过去分词短语可转换成条件状语从句，等等。如：

1. ______ for the breakdown of the school computer network, Alice was in low spirits. (福建卷)

A. Blaming                                          B. Blamed

C. To blame                                        D. To be blamed

【说明】此题答案选B。根据句意可知，Alice与blame为被动关系，故选过去分词。Blamed for…在此表原因，故可转换成原因状语从句：Because she was blamed for the breakdown of the school computer network…(from www.nmet168.com)

2. _____ in the mountains for a week, the two students were finally saved by the local police. (江苏卷)

A. Having lost                                       B. Lost

C. Being lost                                         D. Losing

【说明】此题答案选B。lose oneself in 为固定短语，其意为“在……迷路”，由于题中没有oneself，所以可以断定the two students与lose是被动关系，故用过去分词。Lost in the mountains for a week在此表时间，可转换成时间状语从句：After they had been lost in the mountains for a week…

注：有时用作状语的过去分词前带有自己的“引导词”。如：

3. No matter how frequently ______, the works of Beethoven still attract people all over the world. (广东卷)

A. performed                                        B. performing   

C. to be performed                                D. being performed

【说明】此题答案选A。performed为they are performed之省略。

4. When _____help, one often says, “Thank you.” Or “It’s kind of you.” (福建卷)

A. offering                                           B. to offer

C. to be offered                                    D. offered

【说明】此题答案选D。“给某人提供帮助”说成英语是offer sb help，根据句意可知，one与offer为被动关系，即当一个人说“谢谢”时，他应当是“被”提供了帮助，所以空格外填过去分词。When offered help…可视为When he is offered help…之省略。

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