spend的主语一般是人，总是用于以下句型：
1. spend some money/some time on sth。
2. spend some money/some timedoing sth。
比如：
i spent fifty yuan on the coat。
= i spent fifty yuan buying the coat. 我花50元买了这件大衣。
he spent three days on the work.
= he spend three days doing the work. 我干这项工用途了3天。
3.spend money for sth. 烧钱买……。
比如：his money was spent for books. 他的钱用来买书了。
take常用于“占用、花费”时间，后面常跟双宾语，其主语一般为形式主语“it”或物。句式是：
1. it takes/took sb.some time to do sth
比如：it will take me two days to do the work. 这项工作花了2天时间。
2. doing sth./sth.takes sb.some time.
比如： the work will take me two days。这项工作花了2天时间。
repairing this car took him the whole afternoon. 他花了一下午修理汽车。
it took me three years to draw the beautiful horses。
=drawing the beautiful horses took me three years。
画这类好看的马花费了我3年时间。
pay为“付款、赔偿”之意，主语一般是人，句型
1. sb. pays some money for sth
比如： i paid fifty yuan for the coat。我花50元买了这件大衣。
2. pay money for sth. 付钱买……。
比如：i have to pay them 20 pounds for this room each month. 我每一个月要付20英磅的房租。
3. pay money back 还钱。
比如：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。
4. pay off one's money 还清钱。
cosplayt的主语是物或某种活动， 还可以表示“值”。句型
1. sth. cosplayts ＋money, 某物花了多少钱。
比如：a new computer cosplayts a lot of money. 买一台新电脑要花一大笔钱。
2. sth. cosplayts ＋time, 某物花了多少时间。
比如：remembering these new words cosplayt him a lot of time. 他花了很多时间才记住了这类单词。
注意：cosplayt的过去式及过去分词都是cosplayt，并且不可以用于被动句。
北京海淀区中考考试试题
i'm interested in animals, so i _____________ every saturday working in an animal hospital。
a. pay b. get c. take d. spend
【分析】答案：d。该题考查的是pay, get, take和spend这四个动词的使用方法不同。只有动词spend可以用在sb. spends time doing sth. 这个句型里，所以正确答案应是spend。
this science book ____ me a great amount of money。
a. took b. cosplayt c. used d. spent
答案：b
