spend on 与 spend in有什么区别?

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spend on 与 spend in有什么区别?
spend on 与 spend in有什么区别?

spend on 与 spend in有什么区别?
spend on sth.
spend in doing sth.

Spend on sth. spend in doing sth.

答:
spend的主语必须是人,常用于以下结构:
(1) spend time /money on sth. 在……上花费时间(金钱)。例:
I spent two hours on this maths problem. 这道数学题花了我两个小时。
(2) spend time / money (in) doing sth. 花费时间(金钱)做某事...

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答:
spend的主语必须是人,常用于以下结构:
(1) spend time /money on sth. 在……上花费时间(金钱)。例:
I spent two hours on this maths problem. 这道数学题花了我两个小时。
(2) spend time / money (in) doing sth. 花费时间(金钱)做某事。例:
They spent two years (in) building this bridge. 造这座桥花了他们两年时间。
(3)spend money for sth. 花钱买……。例:
His money was spent for books. 他的钱用来买书了。
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。
pay的基本用法是:
(1) pay (sb.) money for sth. 付钱(给某人)买……。例:I have to pay them 20 pounds for this room each month. 我每个月要付20英磅的房租。
(2)pay for sth. 付……的钱。例:
I have to pay for the book lost. 我不得不赔丢失的书款。
(3)pay for sb. 替某人付钱。例:
Don’t worry! I'll pay for you. 别担心,我会给你付钱的。
(4)pay sb. 付钱给某人。例:
They pay us every month.他们每月给我们报酬。
(5)pay money back 还钱。例:
May I borrow 12 yuan from you? I'll pay it back next week. 你能借给我12块钱吗?下周还你。
(6)pay off one's money还清钱。

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spend(in)doing sth
这里的in可以省去