初中英语介词复习.doc

介词复****常用介词介绍时 at lunch 午饭时 at noon 正午(一)表示时间的介词: 1. at, on, in (1) at 表示“在某一时刻、某一时间点” at 5:30 在 5:30 at sunrise 日出时 at night 夜间 I get up at 6:00 every day. 我每天 6:00 起床。表示“在……岁”时用 at the age of…。如: at the age of five 在五岁时(2) on 表示“在具体某一天或某天的上、下午”。如: on Monday 在星期一 on April 1st 在四月一日 I heard a shot on the morning of March 18. 三月十八日早晨我听到一声枪响。泛指上、下午、晚上、夜间时用 in the morning/afternoon/evening, at night ;但若指具体某一天的上述时段时,则一律用 on。如: on the afternoon of May 23 在五月二十三日下午(3) in 表示“在某月、季节、年、世纪”以及泛指的上、下午、晚上。 in September 在九月 in winter 在冬季 in 1999 在 1999 年 in the 20th century 在 20 世纪 in the morning/afternoon/evening 在上午/ 下午/ 晚上 2. for, during, through (1) for 表示“一段时间”,后接与数词连用的时间名词。多与完成时连用。 I’ ve been a soldier for 5 years. 我入伍已 5 年了。 She has been ill for several days. 她已经病了几天了。表示“持续一段时间”时, for 后面必须跟“数字+ 时间名词”,而 during 后决不可接数字。(2) during 表示“在……期间” He visited many nice places during his stay here. 在他逗留期间他参观了许多美丽的地方。 What did you do during the summer vacation? 你在暑假做了什么? (3) through 表示“一直……,自始至终” They worked hard through the winter. 整个冬天他们都在努力工作。 She treated me like her brother through these years. 这些年来她始终把我当哥哥对待。 3. from, since (1) from 作“从……”解,多用于“ from … to/till …”中。 You e anytime from Monday to Friday. 周一至周五你什么时间来都行。 The exam will start from 9:00am. 考试将从上午九点开始。① from “从……(开始) ”未必持续到现在,如: from 1995 to 1998. 从 1995 年到 1998 年。而 since 是指“自从……以来一直持续到现在”② since 一般只与现在完成时连用,而 from 不受此限。(2) since 表示“自从……以来(直到现在) ” He has been away from home since 1973. 他自从 1973 年就离开了家乡。 We have known each other since ten years ago. 我们十年前就认识了。 for 与 since 表示一段时间,但 for 与时间段连用,而 since 与时间点连用。如 for two hours (持续)两小时; since last week 自从上周直到现在 4. before, by, till, until (1) before 指“在……之前” e before ten o’ clock. 请 10 点以前来。 The meeting will end after 3:00 . 会议将在下午三点后结束。表示“在……以前”时, before 与 by 基本可通用。但 by 还有“截至……为止”之意,此时可与完成时连用,而 before 一般不与完成时连用。如: How many models have you made by the end of last month? 截至上月底你做了多少个模型? (2) by指“不迟于,到……时为止,在……以前” I must finish my homework by lunch. 午饭前我必须做完作业。 We had learned over 100