Period Three Grammar & Writing
过去分词作状语
过去分词表被动和完成,作状语时修饰谓语动词表示的动作,其逻辑主语一般是主句的主语,且与主语之间存在着被动关系。过去分词作状语可表示时间、原因、让步、结果、方式、条件等,过去分词短语作状语往往可以用相应的状语从句或并列复合句代替。
1.表示时间,作时间状语,相当于时间状语从句。可以置于句首,也可以置于句末,有时可置于主语和谓语之间。
Seen from the hill,the town looks very beautiful.
=When the town is seen from the hill,it looks very beautiful.
从山顶看,城市很漂亮。
2.表示原因,作原因状语,相当于原因状语从句。常置于句首,偶尔置于句末或句中。
Encouraged by his father,he continued his research work.
=As he was encouraged by his father,he continued his research work.
由于受到他父亲的鼓舞,他继续他的研究工作。
3.表示条件,作条件状语,相当于条件状语从句。这类句子的谓语动词往往用将来时或情态动词。常置于句首。
Given more money and time,we would have finished the job earlier.
=If we had been given more money and time,we would have finished the job earlier.
如果给予更多的钱和时间,我们就会把工作完成得早一点。
4.表示行为方式或伴随状况,作方式或伴随状语,相当于并列复合句。置于句首、句中或句末。