the plan was abandoned when they found it.（possible)to accomplish.空格内为什么是形容词impossible而不是副词impossibly

the plan was abandoned when they found it.（possible)to accomplish.空格内为什么是形容词impossible而不是副词impossibly
the plan was abandoned when they found it.（possible)to accomplish.
空格内为什么是形容词impossible而不是副词impossibly

the plan was abandoned when they found it.（possible)to accomplish.空格内为什么是形容词impossible而不是副词impossibly
用形容词 impossible 而不是副词 impossibly
的原因是
impossible 这里修饰 it (the plan)
句子的完整形式是
the plan was abandoned when they found it (to be impossible) to accomplish.
to be 被省略了.
希望帮到了你,

find sth +形容词 表示“发现某事.....” 这是固定搭配，不能加副词

find it后跟形容词，该形容词做宾语补足语

find it impossible意思是发现不可能，因为impossible是形容词，可以修饰代词it;
find it impossibly意思是不可能发现（虽然没有这种表达方法，但是从语法上是这么个道理,impossibly是副词，只能修饰动词或形容词，不能修饰代词it）

就是这句式，find it +adj.(形容词) to do sth.发现做某事

原句是it is possible to complish，这里it 指 the plan。

形容词impossible作宾语it的补足语。副词不能作补语

这个很好理解 possible在这儿作 宾语补足语
望采纳