I
go
to
school
every
day
Everyday的主要意思是“日常的”、“普通的”和“每天发生的”。虽然最后一种意思跟every
day差不多,但everyday是形容词,不可以修饰动词。Every
day是一个表示频率的副词词组,它才可以修饰动词。举个简单的例子:
I
go
to
school
everyday.
[错!Everyday是形容词,go
to
school是动词词组。形容词不可以修饰动词。]
I
go
to
school
every
day.
[对!
Every
day是副词词组。副词可以修饰动词。]
还有,everyday虽然是形容词,但它只作定语,不作表语。所以,你可以说an
everyday
situation/issue,但你不可以说The
situation/issue
is
everyday.(大多数形容词是既可以作定语,又可以作表语的,比如beautiful
flowers/the
flowers
are
beautiful。)