新东方考研语法讲堂135

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2、作状语。分词和分词短语作状语时，可以表示时间、原因、行为方式等意义。表示时间和原因的分词短语相当于对应的状语从句。
    例如：
    Seeing the teacher entering the room，the students stood up。(=When the students saw the teacher entering the room，They stood up。)学生们看见老师走进房间，都站了起来。 (时间)
    Heated，the Metal expands。 (=The metal expands if /when it is heated。)金属受热而膨胀。(条件、时间)
    Being excited，I couldn’t go to sleep。(=As I was excited ，I couldn’t go to sleep。)我兴奋得睡不着觉。(原因)
    Being a student，he was interested in sports。(=As he was a student，he was interested in sports。)
    他是个学生，所以对体育运动感兴趣。(原因)
    Inspired by Dr.Yang’s speech，Li Hua and his classmates decided to study physics harder。(=As they were inspired by Dr.Yang’s speech，Li Hua and his classmates decided to study physics harder。)李华和他的同学们受到杨博士讲话的鼓舞，决定更加努力学习物理。 (原因)
    The children went away laughing。=The children went away。They laughed as they went。孩子们笑着走开了。(行为方式)
    The professor stood there，surrounded by many students。(=The professor stood there。He was surrounded by many students。)教授站在那里，许多学生围着他。(行为方式)
    While reading the newspaper，father nodded from time to time。(=While he was reading the newspaper，father nodded from time to time。)看报时，父亲不时地点头。(时间)(分词前，可加表示时间的连词while或when。)