主系表结构 1 状态系动词 用来表示主语状态,只有be 一词 (1)Mr
Brown is an engineer
(名词做表语) (2)The machine is out of order
(介词短语做表语) (3)The television was on
(副词做表语) (4)His plan is to keep the affair secret
(动词不定式做表语) (5)My job is repairing cars
(动名词做表语) (6)The question is what you want to do
(从句做表语,即:表语从句) 2 持续系动词 用来表示主语继续或保持一种状况或态度 (1) The door remained closed
(过去分词做表语,remain 意为“仍然”处于某种状态) The teacher asked the twelfth of us to remain after school
(vi 留下;剩下) (2)The shop stays open till seven o'clock
(stay 意为“保持某种状态”) I stayed at a hotel in New York
(stay 是不及物动词,留下,逗留,暂住) (3)The book lies open on the table
The snow lies thick on the ground
(“表示所处状态”) I am lying on the bed
India lies to the south of China
(躺;位于) (4)How do things stand at the moment
Stand still
(情况如何,处于某种状态) Stand up, please