1.It's ten o'clock now.I think the shop is open.2.It's seven o'clock.The train is leaving.这两句 都是现在进行时么?为什么第二句就用is leaving呢?而第一句不用is opening呢?

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1.It's ten o'clock now.I think the shop is open.2.It's seven o'clock.The train is leaving.
这两句 都是现在进行时么?为什么第二句就用is leaving呢?而第一句不用is opening呢?

is open 表示的是商店还是开着门的一种状态 open 是形容词
is leaving 表示火车即将开动,这是个现在进行时表将来的用法,你在将来时态的笔记里肯定记着的 leave come 等词,用现在进行时表将来.
希望我解释清楚了

1open是形容词，表示状态 2 is leaving表示将来时“就要离开了”

go leave come 这些词的进行时表示将来含义 火车将要开了
is open 的open是形容词 表示一种延续的状态
is opening的话就是表示一直在做开门这个瞬间动作，通常不会这样说的

都 不是
1，是一般现在时。is open表示状态。open可以作形容词表状态，一般不用opening表进行。
2，是一般将来时态，有趋向性的动词用现在进行表示将来，有go , leave, come,etc.

Yes,they are.The second sentence used "is leaving" because it is leaving RIGHT NOW.The first sentence didn't used "is opening" is because it's already opened, not just opened.

1 ....我认为商店还开着 open （形容词--开着的）
2 ....火车要离开了 leave （动词--离开） 是用的现在进行时表将来时
open 动词词义为打开 不可以和leave互换

open 是非延续性动词，不能持续。 这里的意思是”开着的“， 形容词。
is leaving是将来时， 就要离开。用进行时表示将来

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