【小编编语】今天查字典英语网小编教给同学们的是初中英语时间介词的用法，一起来学习下吧!
“before+某时只是单纯的指在某时以前;by+某时指不迟于某时The sun will rise before six o’clock.太阳会在六点之前出来.The sun will rise by six o’clock.太阳最迟在六点出来.
to,till与until：1.和from的搭配:from…to;from…till;from…until：He teaches from midday to four o’clock.他从中午教书一直到四点.They are out together with their friends from morning till night.他们从早到晚和朋友一起在外面.It was cold from Christmas until April.从圣诞节直到四月份天气一直是冷的.
2.不和from的搭配They talked till dawn.他们交谈直到天亮.Wait until tomorrow.等到明天.
3.和not搭配:not until;not till:He didn’t return till ten o’clock.直到十点他才回来.He didn’t go until night.直到夜晚他才走.
since和from1.since自从…以来(包含有从过去某一时间开始一直延续到现在之意)常用于现在完成时.I haven’t been home since 1995.从一九九五年以来我都没有回过家.2. from从…(有:从…开始之意)I shall be in New York one week from today.从今天算起我要在纽约一个星期.from March to June 从三月份到六月份from morning till night从早到晚
from now on 从现在起 from then on 从那时起
during和for1.for达…(多长)时间We have been here for a week.我们在这儿已有一周之久.2.during在…期间
He swims every day during the summer.夏天期间他天天去游泳.during常和the连用.有时也可见for和the连用,但是在这种情况下for不是表示时间,而是表示目的;Are you stopping at this hotel for the night?你要在这个旅馆过夜吗?
in和during这两个单词有时好像可以互换.但是,实际上这两个介词HID_PREP分别表达不同的内含.No visitors called in your absence.No visitors called during your absence.你不在的时候没有人来访.in 侧重表达动作方面;during 侧重表达时间方面,在这段时间,而不是在那段时间.