it _harf an hour to read the book?为什么答案是took 而不是cost?是half,不好意思 .它们都可以表示花费时间和金钱，为什么这里只能用took？
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it_harfanhourtoreadthebook?为什么答案是took而不是cost?是half,不好意思.它们都可以表示花费时间和金钱，为什么这里只能用took？it_harfanhourtor
it _harf an hour to read the book?为什么答案是took 而不是cost?是half,不好意思 .它们都可以表示花费时间和金钱，为什么这里只能用took？
it _harf an hour to read the book?
为什么答案是took 而不是cost?
是half,不好意思 .它们都可以表示花费时间和金钱，为什么这里只能用took？
it _harf an hour to read the book?为什么答案是took 而不是cost?是half,不好意思 .它们都可以表示花费时间和金钱，为什么这里只能用took？
首先呢,因为It takes (sb.) sometime to do sth.这是一个句式,即做某事花费某人多长时间,助于必须用it
其次,cost也为花费,但是主语为人或物,多数情况为花费多少金钱,而不是时间,所以这里不能用.
不知是否明白?
固定搭配it takes some time to do sth
cost指的是“花钱”多少，不能用来指时间！！
这里只能用took
it _harf an hour to read the book?为什么答案是took 而不是cost?是half,不好意思 .它们都可以表示花费时间和金钱，为什么这里只能用took？
It started to rain an hour ago
It took me half an hour to look for it.(对half an hour 提问)
It took him half an hour to get to school.(就half an hour部分提问)
It takes me half an hour to get to school.对half an hour 进行提问
It takes me half an hour to walk to school.
It took me an hour to finish the work对an hour提问改为一般疑问句
it took him half an hour to walk there.划线部分提问（half an hour）
It takes her an hour to exercise every day,对an hour提问.
It takes me half an hour to exercise every day(对half an hour提问)
It took me an hour to finish my homework.（对画线部分提问,画线 an hour )
It took me an hour to clean the room.对an hour 提问
it usually______her half an hour to go home by bus.
it will take you half an hour to get there
It t____ Tom half an hour to get home everyday.
2.It's about an ( )(hour) ride to get there
It's an eight-hour-drive to get their grandparents.
IT TAKES HIM AN HOUR TO FISHISH THIS WORK EVERY