take 表示“花费”时，可用以下成分作主语：

▲一是用 it 作主语：

It took nearly two hours to get there. 花了将近两星期才到达那里。

It took all night to blow up two balloons. 给两只气球充气花了整整一个晚上。

It took me a month to get rid of my cough. 我花了一个月才摆脱咳嗽。

▲二是用“人”作主语：

He took ages over the job. 他花了很长时间才干完那件事。

I took a long time to get to sleep. 我花了很长时间才入睡。

▲三是用“活动”作主语：

The journey takes one hour. 车一趟要花1个小时。

Writing books must take a good deal of time. 写书一定要花很多时间。   

▲四是以“动作的对象”作主语：

High-fibre foods take longer to chew. 高纤维食物要花较长时间咀嚼。

This house will take all week to clean. 这所房子要用整整1周时间才能打扫干净。

▲比较同义句：

我写这封信花了1个小时。

It took me an hour to write the letter.

=It took an hour for me to write the letter.

=The letter took me an hour (to write).

=I took an hour writing (to write) the letter.