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 ________ (a t, in, o n) 8:00、2) The p a r t y wil l b eg i n ______ (a t, in, on) 2:00pm、表示在早晨,下午,晚上:in the mor ni ng, in th e aftern oon, in t he e v en i n g、1) We n e ver go sh o p p ing ______ (at, in, on) th e e v e nin g、2) I g e t up a t 7:30 _______ (a t, in, on) t he mor n ing、表示在具体某一天:on M on day, o n Satu r d ay, o n C hi l dren’s D a y, o n June 22, 2025, o n T e a c hers’ day1) C hr istmas i s __________ (at, in, o n) D e c e mber 25th、2) W ha t is the f i ...