Unit 4 School days 单元语法：时间介词和频度副词精讲精练-2026-2027 学年译林版七年级上册英语

译林版（新教材）七年级上册Unit 4 School days语法精讲精练 时间介词和频度副词 核心语法1：时间介词 in / at / on 知识点1 核心语法讲解 介词 in、on、at 常放在时间名词或时间短语前表示时间，三者用法不同。 介词 中文含义 用法规则 例句解析 in 在……（较长时间段内） ① 用于月份、季节、年份前 ② 用于泛指的上午、下午、晚上前（不特指某一天） in 2022 在2022年 in July 在七月 in spring 在春天 in the morning 在上午 解析：2022、July、spring都属于较长时间段；in the morning是泛指早上，没有限定具体哪一天 on 在……（具体某一天） ① 用于具体日期、星期、生日、单日节日前 ② 用于限定到某一天、带有修饰词的上午/下午/晚上前 on March 7, 2020 在2020年3月7日 on Friday 在星期五 on Children's Day 在儿童节 on the morning of August 8 在8月8日上午 on a cold night 在一个寒冷的夜晚 解析：Friday是星期；on the morning of August 8特指8月8日的上午，不是泛指，介词用on at 在……（时刻） ① 用于具体时刻（几点几分）前 ② 用于固定时间搭配前 ③ 用于年龄前 at a quarter to six 在5点45分 at noon 在正午 at 12 (years old) 在12岁 解析：a quarter to six是精确时刻；at noon为固定搭配 ✅ 特殊规则：时间名词前有this, last, next, every, today, tomorrow修饰时，前面不加in/on/at 例：this morning 今天早上；last Monday 上周一；every week 每周 解析：this/last/next/every等词已经限定时间，不再搭配时间介词 知识点2 易混点对比辨析 (1) in the morning vs on the morning of … - in the morning：泛指上午，没有限定是哪一天，介词用in 例：I read books in the morning. 解析：只是说在上午读书，没有指明具体哪一天的上午 - on the morning of + 日期：特指某一天的上午，有明确日期限定，介词改用on 例：We have a meeting on the morning of August 8. 解析：明确是8月8日的上午，属于具体某天的上午，介词用on (2) 星期表达 on Monday 在周一 ✔；in Monday ❌ 解析：星期属于具体某一天，固定搭配介词on，不能使用in (3) 教材固定搭配 at the weekend = at weekends 在周末 解析：为本单元课本原版搭配，优先记忆；on weekends为美式表达。 📖 记忆口诀: 年月季节要用in，日子前面却不行。 遇到几号要用on，泛指早中又是in。 若说某日早中晚，换on不用in才行。 时刻正午用at，时分前面它来定。 考点精练 ( )1．The Double Ninth Festival falls ________ October 11th this year and we visited our grandparents ________ last month. A．in; on B．on; / C．on; in D．in; / ( )2．—What time do you usually get up? —________ 6:00 ________ the morning. A．On; in B．For; on C．In; on D．At; in ( )3．Many young people like shopping online ________ November 11 ________ every year. A．at; / B．on; / C．on; in D．at; in ( )4．We enjoy the full moon ________ Mid-Autumn night. A．on B．at C．of D．with ( )5．Sam’s birthday is ________ May 5th. My birthday is ________ June. A．on; in B．in; on C．on; on D．in; in ( )6．My family had a party ________ a sunny morning, and the party started________ 8:00 p.m. A．at; in B．in; at C．at; on D．on; at ( )7．—My birthday is ________ 1 June. What about you? —My birthday is ________ June too. A．in; on B．in; in C．on; on D．on; in ( )8．The opening ceremony of the 19th Asian Games in Hangzhou took place ________ 8 o’clock ________ the evening of September 23rd, 2023. A．on; in B．at; on C．at; in D．on; on ( )9．We usually get together and welcome the New Year ________ 12 o’clock. A．at B．in C．on D．of ( )10．Today is my birthday. My family will hold a big party for me ________ this evening. A．on B．in C．at D．/ ( )11．We are going to have a trip to Hong Kong ________ January. A．of B．on C．at D．in ( )12．We often eat mooncakes ________ the Mid-Autumn Festival. A．in B．about C．at D．for ( )13．We will have a family party ________ the evening of this Saturday. A．in B．on C．at D．for ( )14．The 2026 FIFA World Cup started ________ June 11 and ended ________ July. A．in; in B．on; on C．on; in D．in; on ( )15．Hurry up! The class will begin ________ 5 minutes. A．in B．for C．at D．to ( )16．I always go to school at seven ________ Monday mornings. A．in B．on C．at D．before ( )17．It’s a good idea to visit Harbin ________ winter. A．at B．on C．in D．to ( )18．Susan will go to see Harry Potter in the cinema ________ this coming Friday. A．in B．on C．at D．/ ( )19．________ a freezing cold night, Jim and Jill had a pleasant chat and knew each other better. A．In B．At C．With D．On ( )20．Zong Qinghou, the founder (创始人) and chairman of Hangzhou Wahaha Group, China's leading beverage manufacturer, passed away ________ Sunday ________ the age of 79. A．on, at B．in, on C．on, in D．in,at 核心语法2：频度副词 知识点1 核心语法讲解 频度副词用来描述动作发生的频率，常搭配一般现在时，描述日常习惯。 频率由高到低：always ＞ usually ＞ often ＞ sometimes ＞ seldom ＞ never 频度副词 中文含义 用法规则 例句解析 always 总是，一直 频率最高，表示动作反复、不间断 He always gets up early from Monday to Friday. 解析：gets是实义动词，always放在实义动词前面 usually 通常地 表示习惯性动作、状态，很少有例外 He usually has milk for breakfast. 解析：has是实义动词，usually放在实义动词前面 often 经常，时常 动作反复发生，偶尔间断；反义词seldom He often plays football after school. 解析：often放在实义动词plays前面 sometimes 有时 动作发生间隔较长，相当于not very often She can sometimes win in a match. 解析：can是情态动词，sometimes放在情态动词后面 seldom 很少，不常 自带否定含义，句中不能再加not He seldom watches TV. 解析：seldom本身表否定，不需要再加not never 从不 自带否定含义，表示动作从未发生 She is never late for school. 解析：is是be动词，never放在be动词后面 ✅ 频度副词位置总规则：实前，be后，情助后 1. 放在实义动词（行为动词）前面 2. 放在be动词（am/is/are）后面 3. 放在情态动词、助动词后面 知识点2 易混点&提问辨析 (1) seldom / never 的否定特点 - seldom、never自带否定含义，句子中不能再加not 例：He never gets up late. ✔ He is not never late. ❌ (2) How often 提问频率 How often 用来对动作发生的频率提问，意为“多久一次” 例：— How often does he play football? — He often plays football. 解析： 答语两种形式： ① 频度副词：Often. / Sometimes. / Never. ② 频次短语：every day、once a week、twice a week (3) 一般现在时三单提醒 主语是第三人称单数时，谓语动词要加-s/-es 例：He always gets up early. ✔ He always get up early. ❌ 解析：主语he是三单，get变为gets 考点精练 ( )1．Nancy ________ has snacks because she thinks they are unhealthy. A．often B．always C．seldom D．sometimes ( )2．—________ do you play badminton? — Twice a week. I usually play it on Tuesday and Friday. A．How long B．How often C．How soon D．How many ( )3．As a book lover, Lucy ________ buys books. She only borrows them from the library. A．always B．never C．sometimes D．usually ( )4．—How often does your family have a big dinner together? —________. My parents are always busy with work. A．Once a week B．Seldom C．Next month D．For two hours ( )5．He is a good student, so he is ________ on time. A．usually B．never C．sometimes D．always ( )6．Because he is too lazy, he ________ cleans his room. A．always B．sometimes C．usually D．never ( )7．John ________ plays computer games. He thinks it is bad for his eyes. A．never B．always C．often D．sometimes ( )8．Linda is seldom late for school because she likes going to school. A．not often B．always C．usually D．never ( )9．Peter loves playing basketball. He ________ does other things in his free time. A．sometimes B．seldom C．often D．always ( )10．Meimei is very busy these days, so she ________ goes out to play. A．sometimes B．usually C．seldom D．always ( )11．—Is your son happy at the weekend? —No. He ________ has so many things to do. A．never B．always C．seldom D．sometimes ( )12．My brother doesn’t like red. He ________ buys red clothes. A．never B．sometimes C．usually D．always ( )13．Lily is a good student. She always goes to school at 6:30 and she is ________ late for school. A．never B．always C．usually D．sometimes ( )14．Little Sam ________ goes to school by bus. Sometimes, he rides a bicycle. A．never B．seldom C．hardly D．usually ( )15．Jim is ________ the first one to arrive at school. He is ________ late for class. Teachers like him. A．always; usually B．usually; seldom C．seldom; never D．usually; sometimes 学科网（北京）股份有限公司 $ 答案解析 考点精练·时间介词 1.答案：B。解析：在具体日期October 11th前用介词on；last被用来修饰时间名词month时，前面不加介词。 2.答案：D。解析：具体时刻6:00前用介词at；in the morning为固定搭配，意为“在早上”。 3.答案：B。解析：具体日期November 11前用介词on；every修饰时间名词year，前面不加介词。 4.答案：A。解析：Mid‑Autumn night指节日的当晚，属于被限定的具体夜晚，前面用介词on。 5.答案：A。解析：具体日期May 5th前用on；月份June前面使用介词in。 6.答案：D。解析：a sunny morning带有形容词修饰，指特定某个上午，前面用on；具体时刻8:00 p.m.前用at。 7.答案：D。解析：具体日期1 June前用on；月份June前面使用介词in。 8.答案：B。解析：具体时刻8 o’clock前面用at；the evening of后接具体日期，是特定的晚上，介词用on。 9.答案：A。解析：整点时刻12 o’clock属于具体时间点，前面用介词at。 10.答案：D。解析：this修饰时间名词evening，前面不需要加介词。 11.答案：D。解析：月份January前用介词in。 12.答案：C。解析：at the Mid‑Autumn Festival固定搭配，表示“在中秋节（节日整体）”。 13.答案：B。解析：the evening of后接具体时间，代表特指的晚上，前面介词用on。 14.答案：C。解析：具体日期June 11前用on；月份July前面用介词in。 15.答案：A。解析：“in + 一段时间”用在将来时态中，表示“……之后”。 16.答案：B。解析：Monday mornings指每一个周一早上，被星期限定，前面介词用on。 17.答案：C。解析：季节winter前面使用介词in。 18.答案：D。解析：this coming修饰时间名词Friday，前面不加介词。 19.答案：D。解析：a freezing cold night带有形容词修饰，指特定某一个夜晚，介词用on。 20.答案：A。解析：星期Sunday前用on；at the age of为固定短语，意为“在……岁时”。 考点精练·频度副词 1.答案：C。解析：because引导原因，她认为零食不健康，所以很少吃零食，seldom很少；A经常，B总是，D有时。 2.答案：B。解析：答语Twice a week（一周两次）表示动作频率，用How often多久一次提问；A多长，C还要多久，D多少（接可数名词）。 3.答案：B。解析：only borrows from the library只从图书馆借书，说明她从不买书，never从不；A总是，C有时，D通常。 4.答案：B。解析：问句问聚餐的频率，父母工作总是很忙，说明很少聚餐，seldom很少；A一周一次，C下个月，D持续两小时。 5.答案：D。解析：好学生，所以总是准时，always总是；A通常，B从不，C有时。 6.答案：D。解析：because说明原因，他太懒，所以从不打扫房间，never从不；A总是，B有时，C通常。 7.答案：A。解析：他认为对眼睛有害，所以从不玩电脑游戏，never从不；B总是，C经常，D有时。 8.答案：A。解析：seldom意为“很少，不常”，同义短语not often；B总是，C通常，D从不。 9.答案：B。解析：Peter热爱打篮球，所以空闲时间很少做别的事，seldom很少；A有时，C经常，D总是。 10.答案：C。解析：梅梅这些天很忙，所以很少出去玩，seldom很少；A有时，B通常，D总是。 11.答案：B。解析：周末不开心，因为他周末总是有很多事情要做，always总是；A从不，C很少，D有时。 12.答案：A。解析：弟弟不喜欢红色，所以从不买红色衣服，never从不；B有时，C通常，D总是。 13.答案：A。解析：莉莉是好学生，6:30到校，从不迟到，never从不；B总是，C通常，D有时。 14.答案：D。解析：后面sometimes he rides a bicycle有时骑自行车，说明通常坐公交，usually通常；A从不，B很少，C几乎不。 15.答案：B。解析：吉姆通常第一个到校，很少上课迟到，老师喜欢他；usually通常，seldom很少；A总是；通常，C很少；从不，D通常；有时。 学科网（北京）股份有限公司 $