OG12 SC-91 关于时态

uniquenellie

91. Nobody knows exactly how many languages there are
in the world, partly because of the dif? culty of
distinguishing between a language and the
sublanguages or dialects within it, but those who have
tried to count typically have found about ?ve thousand.

(A) and the sublanguages or dialects within it, but
those who have tried to count typically have
found
(B) and the sublanguages or dialects within them,
with those who have tried counting typically
? n d i n g
(C) and the sublanguages or dialects within it, but
those who have tried counting it typically ?nd
(D) or the sublanguages or dialects within them, but
those who tried to count them typically found
(E) or the sublanguages or dialects within them,
with those who have tried to count typically ?nding

答案是A，

我想问一下A选项中，关于时态，如果换成typically find可以吗？
前面是have tried to count, 后面的时态是否可以落后一点，用find，而不是have found？
还是两个都必须是完成时。

mudiduange

不是不可以，而是没有用现在完成时好
因为5000种语言已经找到了，是一个完成的动作，因此用完成式要好点

李子木

OG上对于现在完成时的定义，差不多就是有强调做完的意思

在这里的话，用find表示一直，时间概念不够清楚。

OG上有很明确的对于时态的解释和定义

ywsunny

想问一下那个it是指language呀，所以用单数it不用them. 各位怎么知道dialects是within language而不是sublanguages，从而不用them而用it的呢？

FactOrFiction

根据逻辑含义来判断.

sublanguage里面的sub, 与dialect within it里面的within, 含义是对应的.