Question

While the alien was buying a souvenir, the girl called the police中buy是延续性动词吗

Answer 1

是延续性动词，只要能与WHILE搭配构成进行时的都是延续性动词。
SHE HAS BOUGHT A NEW SKIRT。 / / SHE BOUGHT A SKIRT YEASTERDAY。这里的BOUGHT都是瞬间性动词。
SHE WAS BUYING SOMETHING IN THE SHOP WHILE I WAS SITTING ON THE BENCH OUTSIDE WAITING FOR HER。这里的BUYING就是延续性动词。
明白了吗？

Answer 2

这个问题正困扰我呢。buy是非延续性动词，不能用在表示一段时间的while后面。但是人教版初二下册第三单元听力中是有这一句While the alien was buying a souvenir, the girl called the police。不知道为什么？

Answer 3

不是，它是一个短暂性动词，

Answer 4

不是。短暂性的。