it remains to be seen whether和it remains to be that的区别及运用

it remains to be seen whether和it remains to be that的区别及运用

it remains to be seen whether和it remains to be that的区别及运用是：
1、it remains to be seen whether 这还有待观察，指不确定的事
it remains to be that 它仍然是，尚待成为...
2、it remains to be that 表陈述，多用于陈述句中。
it remains to be seen whether表是否。
例如：
However, it remains to be seen whether the process can be scaled up.
然而，加工能否成比例增加还要拭目以待。

It remains to be seen how weather conditions affect the air flows that makeformation flight more efficient.

现在仍需考虑天气情况对气流的影响，这会关系到编队飞行的效率。

it remains to be seen whether 有待观察是否，尚待分晓是否
Although it remains to be seen whether it will be raining, we still need to prepare. 尽管天是否下雨有待观察，我们仍需准备

it remains to be ... that 尚待成为...
It remains to be seen that using any method to cultivate the students' strategy toimprove learning effect.
采取何种方式培养本校学生生物学习策略，以提高学习效益是值得思考的。

主要在于whether和that区别上，一个有是否的意思，一个是陈述