Question

there doesn't seem to have been any trouble in solving the problem 句首为什么不用It 而用there 谢谢

Answer 1

there be短语本身就有某体存在某物的意思。 至于there 句（如你所列出的这句）与there be 句相似表示某物在某处。it 代词，代替前面所指的事物，可以做不定式主语，但后面必须加to，而你例句后面是solving the ~，是分词做后置定语。例句可改为：it doesnt seem to have been any difficulty to solve the problem. there 只有放在句首时才做代词构成there be 表存在，其他时候 there 都做副词。

Answer 2

因为这个句子若不考虑时态可以写为：there is not any trouble in solving the problem.所以这个句子句首是there而不是it。

Answer 3

解决这个问题看起来一直没有任何麻烦。
这是一句there be + seem to do 的结构，如果用it，也可以，但要改成：it seems to sb.
It seems to me that there hasn't been any trouble in solving the problem.

希望对你有帮助

Answer 4

这是典型的there。。。be句型呀

我们说的there be句型并不仅仅只有there is或者there are

要把各种它的变式都考虑进去哈

希望可以帮到你

Answer 5

there doesn't seem to have been any trouble in solving the problem 句首为什么不用It 。
there be句型包括 there is/are； there was/were； there seem ； there become；等
本句中若用it，it为形式主语，it doesn't seem to have been any trouble to solve the problem .
真正主语是to solve the problem