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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?

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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?
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.