take 和cost都表示“花费”,具体用法如何?当主语是动名词短语时用哪个?例如：Learning a foreign language will (take/cost) a lot of time.

take 和cost都表示“花费”,具体用法如何?当主语是动名词短语时用哪个?例如：Learning a foreign language will (take/cost) a lot of time.
take 和cost都表示“花费”,具体用法如何?当主语是动名词短语时用哪个?
例如：Learning a foreign language will (take/cost) a lot of time.

take 和cost都表示“花费”,具体用法如何?当主语是动名词短语时用哪个?例如：Learning a foreign language will (take/cost) a lot of time.
cost的主语是物或某种活动, 还可以表示“值”, 常见用法如下：(1)sth. costs (sb.) ＋金钱,某物花了（某人）多少钱.例：A new computer costs a lot of money. 买一台新电脑要花一大笔钱.(2) (doing) sth. costs (sb.) ＋时间,某物（做某事）花了（某人）多少时间.例：Remembering these new words cost him a lot of time. 他花了大量时间才记住了这些单词.
注意：cost的过去式及过去分词都是cost,并且不能用于被动句.
take后面常跟双宾语, 常见用法有以下几种：(1) It takes sb. ＋时间＋to do sth. 做某事花了某人多少时间.例：It took them three years to build this road. 他们用了三年时间修完了这条路.(2)doing sth. takes sb. ＋时间,做某事花了某人多少时间.例：Repairing this car took him the whole afternoon. 他花了一下午修车.
take常用于“占用、花费”时间,其主语通常为形式主语“it”或物.句式是：
It takes/took sb.some time to do sth＝Sth.takes sb.some time. 例如：
It took me three years to draw the beautiful horses.
画这些漂亮的马花费了我3年时间.
cost的主语必须是某物.spend … on sth．/in doing sth．的主语必须是人.pay … for 的主语也是人.It takes + sb．+ 时间（或钱）to do sth．的主语则必须是形式主语It. 动词cost的常用用法是sth.cost (sb.) some money.
如：The dictionary cost me £ 20.

take是一般是花费时间
cost是一般是花费金钱
所以这里用take

take 和cost都表示“花费”，take用于花费时间,cost用于花费金钱.
并且take前面是某件具体的事,例如:Riding a bike to school will take you a little time.
cost用于某件物体需要花费金钱时,经常是sth cost sb $(金钱) .
可等于sp pay $ for sth.
总之用到时间用T...

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take 和cost都表示“花费”，take用于花费时间,cost用于花费金钱.
并且take前面是某件具体的事,例如:Riding a bike to school will take you a little time.
cost用于某件物体需要花费金钱时,经常是sth cost sb $(金钱) .
可等于sp pay $ for sth.
总之用到时间用TAKE或SPEND,用到金钱用COST,SPEND 也可以的.
个人认为没必要像一楼一样理解的那么透彻,毕竟有些专业术语是很难懂的.

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take是一般是花费时间
cost是一般是花费金钱