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新概念英语二册 Lesson7 Too late第(2)套PPT课件

2023-12-22 14:19

新概念英语二册  Lesson7 Too late第(2)套PPT课件

A few hours earlier, someone had told the police that thieves would try to steal the diamonds.
 would +do 过去将来时, 站在过去看未来
立足点是侦探们等在机场的时间。主句用的过去完成时,从句用的过去将来时。
try to do sth. 试图做某事
a few hours ago 现在之前,以现在的时间为基点往前推,用于一般过去时。
a few hours earlier 比之前更早,以过去的时间为基点往前推,用于过去完成时。
When the plane arrived(分句2), some of the detectives were waiting inside the main building while others were waiting on the airfield(分句1).
主句是过去进行时,分句1是过去进行时,分句2是一般过去时。 while 后常接进行时(持续性动词)。 when 后常接一般时(瞬时性动词),也可接进行时(持续性动词)。
代词others常常和some连用,表示“有些(人)……,也有些(人)……”或“有的……,其余的……”

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