题目内容
14.It takes Tony three hours to do his homework every day.(同义句转换)Tonyspends three hourson his homework every day.
分析 每天托尼花三个小时做家庭作业.
解答 答案:spends,on.结合上文是句型It takes sb.+时间+to do sth;某人花多少时间做某事,是一般现在时,下文的主语是人Tony,结合后面的his homework,故用sb+spend+时间+on sth表示某人花多少时间做某事,主语是Tony三单,故答案是spends,on.
点评 本题考察的是四个"花费"的用法,take、spend、cost、pay的用法都可以表示"花费",但用法却不尽相同.spend的主语必须是人,常用于以下结构:(1)spend time/money on sth.;(2)spend time/money (in) doing sth.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;(2)(doing) sth.costs (sb.)+时间. 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; (2)doing sth.takes sb.+时间.pay通常与for连用,构成pay for sth结构,表示"为------付钱".
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