分词作状语中,到底是怎么省略主语的?比如-as she was very weak,she could not move=being very weak,,she could not move【为什么是being?我可以理解为非谓语主动吗?】
--if we are united,we stand;if we divide,we fall=united,we stand,divided,we fall.【为什么这里又不是ing形式了?】
---although he livd miles away,he attended the course=living miles away,he attended the course【这里怎么又ing形式了?】
英语中数词的复数形式是怎样的?例如dozen,score,million,doller(美元)什么时候加s?
eg。-there are millions of kinds of matter in the world.【为什么在million后加s?】