五年级下册英语竞赛试题-Grammar 介词-全国通用版（无答案）

Grammar 介词 易混淆的介词 in，on，at表时间 in 表示“在某月(季节、年等)”: in 1996, in January, in summer 固定词组：in the morning, in a week ,in a minute, in time, in the end on 用于指具体的某一天或专指某一天上午、下午或晚上等: on the night of February 16 at 用于具体时刻前和某些固定词组中。 固定词组：at seven, at the moment, at night, at last, at first, at noon, at times, at once, at this time of the year, at the beginning of, at the end of this month, at the same time。 注意：在表时间里，下列情况下一般不用介词。 词组里有：next, last, this, that, tomorrow, yesterday, one, every, all以及the day before yesterday和the day after tomorrow前不用介词。 in, on, at用在特殊情况下的区别： 1. 阳光、灯、影、衣、冒 in：即在阳光下，在灯下，在树阴下，穿衣、着装、冒雨等都要用in。 例： Don't read in dim light. 切勿在暗淡的灯光下看书。 He went in the rain to meet me at the station. 他冒雨到车站去接我。 以及：in the bright sunlight 在明亮的阳光下；in uniform 穿着制服； the woman in white (black, red) 穿着白(黑、红)色衣服的妇女 2. 小处at大处in： 例：I live in a great city, my sister lives at a small town while my parents live at a village. 3.收音、农场，值日on: 例：I heard the news over (or on) the radio. 我从收音机里听到了这一条消息。