it is clear that引导什么从句

it is clear that...该句型是强调句型。将被强调的部分放在前面，其它部分置于that之后。被强调部分可以是主语，宾语，表语或状语。强调的主语如果是人，that可以由who换用。如果把这种句型结构划掉后，应该是一个完整无缺的句子。这也是判断强调句型与其它从句的方法。

It is clear that the primary duty of parents is to provide protection for our children.

很明显，父母的首要职责就是为孩子提供保护。

It is clear that having green spaces in a city is very beneficial for residents and visitors.

很明显，在城市中拥有绿色空间对居民和游客都是非常有益的。

A decade on, it is clear that the shock was salutary.

十年后，当年的震撼显然出现了正面效益。

It is clear that social tension comes from inequality.

显而易见，社会紧张来自分配不公。