急：per day 与 every day 有何区别?

来源：学生作业帮助网编辑：作业帮时间：2024/04/29 06:36:09

急：per day 与 every day 有何区别?
急：per day 与 every day 有何区别?

急：per day 与 every day 有何区别?
per day是介词+名词,为"介词短语",作补充性状语,强调单位时间.
every day是形容词+名词,为"名词短语".名词一般不能作状语.
everyday是个副词,区别更大.做"时间状语",强调时间的频率.
注意：everyday和every day是不一样的,连着写是副词,分开写是名词短语.
per day和everyday都是作状语的,可以互换,但意思会变化.
比较：
He earns 100 yuan per day.他一天赚100元.(强调单位时间）
He earns 100 yuan everyday.他每天赚100元.(强调时间频率)
He earns 100 yuan in every day.他每天赚100元.(必须加in,否则有语法错误)

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