Unit 4 语法--时间介词 2025-2026学年译林版英语七年级上册

译林版 七年级英语U4语法-时间介词 一、核心时间介词用法详解 1. at, on, in (表示“在某个时间”) at - 用于最具体、最精确的“时间点” 钟点、时刻: at 7:00, at 6:30 PM, at noon (正午), at midnight (午夜), at sunrise (日出时), at sunset (日落时) The meeting starts at nine o'clock. (会议九点开始。) 片刻、瞬间: at the moment (此刻), at present (目前), at that time (在那时), at the same time (同时) I'm busy at the moment. (我此刻很忙。) 年龄点: at the age of 10, at your age (在你这个年纪) He started to learn piano at the age of five. (他五岁开始学钢琴。) 较短的节日/时期: at Christmas (在圣诞期间), at Easter (在复活节期间), at the weekend (在周末) 【注:美式英语常用 on the weekend】 We usually get together at Christmas. (我们通常在圣诞节聚会。) on - 用于特定的“某一天”或“某一天的某个部分” 星期几: on Monday, on Friday afternoon, on weekends 【注:美式用法】 Let's go for a picnic on Sunday. (我们周日去野餐吧。) 具体的日期: on June 1st, on May 2nd, 2023 My birthday is on October 20th. (我的生日在10月20日。) 特定的日子(含修饰词): on a cold day (在一个寒冷的日子), on a rainy night (在一个雨夜), on my birthday (在我生日那天) She arrived on a sunny morning. (她在一个晴朗的早晨到了。) 某一天的上午、下午、晚上: on Monday morning, on the afternoon of July 1st, on Tuesday evening I will see the doctor on Friday morning. (我周五上午去看医生。) 【 ️ 注意:泛指“在早上”用 in the morning,但特指“某天的早上”必须用 on!】 in - 用于较长的“时间段” 一天中的大致部分: in the morning, in the afternoon, in the evening I always read in the evening. (我总是在晚上看书。) 【 ️ 例外:at night】 月份: in January, in December It usually snows in January here. (这里一月份通常会下雪。) 季节: in (the) spring, in summer, in autumn, in winter Flowers bloom in spring. (春天花开。) 年份: in 1999, in 2023 He was born in 2008. (他出生于2008年。) 世纪、年代: in the 21st century (在21世纪), in the 1980s (在20世纪80年代) This was a common practice in the 19th century. (这在19世纪很常见。) 一段时间以后(将来): in three days (三天后), in ten minutes (十分钟后) The train will arrive in an hour. (火车将在一小时后到达。) 易错点总结 1. 早上/下午/晚上: 泛指(不特指某天):用 in (in the morning)。 特指某天的:用 on (on Monday morning)。 2. 周末: at the weekend (英式英语) on the weekend (美式英语) 3. 节日: at 用于整个节日期间 (at Christmas)。 on 用于节日的具体哪一天 (on Christmas Day 在圣诞节当天)。 4. 时间点 vs 时间段:这是最根本的区别。问自己:我想表达的是一个点(at)、一个面(on)还是一个段(in)? 记忆口诀:at 点、on 天、in 月季年。 2. for, since, during (表示“一段时间”) 介词 含义与用法 例句 时态搭配 for 长达...(后接一段时间的总和) He has lived here for ten years. (他在这里住了十年了。) 常与完成时连用 since 自从...以来(后接一个过去的时间点) She has worked there since 2020. (她从2020年就在那里工作。) 必须与完成时连用 during 在...期间(强调某段时间内) I met him during the summer holiday. (我在暑假期间见过他。) 各种时态 3. from...to..., until/till, by (表示“时间范围”) 介词 含义与用法 例句 from...to/till/until... 从...到... The shop is open from 9 a.m. to 6 p.m. (商店从上午9点营业到下午6点。) until / till 直到...为止 I will wait until you come back. (我会一直等到你回来。) by 到...为止;不迟于(表示截止期限) You must finish your homework by Friday. (你最迟必须在周五前完成作业。) 4. before, after, past, to (表示“时间前后”) 介词 含义与用法 例句 before 在...之前 Please come before 8 o'clock. (请8点前来。) after 在...之后 We will play football after school. (放学后我们会去踢足球。) past 超过...(分钟,用于钟点表达,≤30分) It's ten past eight. (8:10。) to 差...(分钟,用于钟点表达,>30分) It's twenty to nine. (8:40。) 二、易混点与特殊用法辨析 1. in time vs on time 短语 含义 例句 in time 及时(强调在截止时间或事发之前赶到,有“没迟到”的含义) The doctor came in time to save her life. (医生及时赶到救了她的命。) on time 准时,按时(强调按计划、规定的时间点) The train arrived on time. (火车准点到达。) 2. in the morning vs on Monday morning in the morning:泛指“在早上”。 on Monday morning:特指“在某个特定日期的早上”,必须用on。 同理:on a cold afternoon, on the evening of May Day 3. 不用介词的情况 在this, that, next, last, every, tomorrow, yesterday等词前,省略介词。 正:I will go swimming next Sunday. (√) 误:I will go swimming on next Sunday. ( ) 正:He arrived last week. (√) 误:He arrived in last week. ( ) 学科网(北京)股份有限公司 $$