小学介词专项练习一、时间:1)i n , on,at 在……时i n 表示较长时间,如世纪、朝代、时代、年、季节、月及一般(非特指)得早、中、晚等
如 i n t h e 20t h century, i n t he 19 5 0 s, i n 1 9 8 9, i n summe r, i n J anua r y, i n t he m o rning, in o n e’s li f e , in o n e’s t hi r tie s等
on 表示具体某一天及其早、中、晚
如on M a y 1st, on M onday, on New Ye ar’s D a y, on a c ol d n i g h t in J anua ry, on a f in e mo r ning, on Sunday a f ter n oo n等
注意:在l a s t, n ext, t hi s, that, s o m e, e v e r y 等词之前一律不用介词
如:We mee t e v ery day、a t 表示表示某一时刻或较短暂得时间 , 或泛指圣诞节 , 复活节等在 :a t s e ve n o’cl o c k, a t a quar ter p a st four, a t elev e n tw e nt y, a t n oo n, at ni g ht, at mi d n i gh t, a t this t ime of ye a r, a t t h e beg i nni n g o f…, at the end of …, at th e age of …, at Chri s tmas, at t his mom e n t等
1) M y f a ther us ua l l y goes to w o rk _______