时间介词、可数和不可数名词
1.[考点解析]时间介词。in表示在某年、某季度、某月、某周、一天中某段时间。如:in 1999,in spring,in February,2002,in a week,in the evening.
on表示某一天或某天中的某段时间。如:on Sunday,on the morning of May 1,
on March 8,on a cold spring morning.
at表示某个具体的时刻。如:at eight o'clock,at this time of year,at the moment,at the same time.
注意有些表示时间的词语前如有last,next或this,则一般不用介词,如:last night/week/month/term/Sunday/Monday?
next week/month/term?
this year/week/month/term//Sunday/Monday?
the next day/week/month/term/year.