itis后面加什么词adj还是什么

it is应接不定式加形容词,后面的形容词作表语,修饰BE动词,这句话里的BE动词就是is.副词则是修饰实意动词；

is 是系东西,后面可以跟形容词,作表语成分构成系表结构；

it is 它是

I was just thinking what a long way it is.

我刚才在琢磨路途太远了。

It is important to develop good study skills.

培养良好的\'学习方法很重要。

It is not within my power to help you.

我是爱莫能助啊。

It is not clear what they want us to do.

我们不肯定他们要我们做什么。

It is quite possible that space and time are finite.

很有可能空间和时间是有限的。

It is important not to let things get out of perspective.

重要的是不要把事情轻重倒置。