介词系统复习-2025-2026学年九年级英语下册语法易错点精讲（沪外版）

初中沪外版 【寒假专版】 9年级语法精讲 寒假专版 介词系统复习专项训练 寒假语法易错点精讲 学段：初中教材：沪外版年级：9年级 语法认知 介词是一种虚词，不能单独作句子成分，需要和名词、代词或相当于名词的其他词类、短语或从 句构成介词短语，用来表示时间、地点、方向、方式、原因、对象等多种关系，在句中主要作状 语、定语、表语或宾语补足语。 易错点讲解 易错点一：时间介词in/on/at的混淆 讲解： -in用于年、月、季节、泛指上午/下午/晚上（如in2023,in March,in winter,in the morning): -on用于具体日期、星期、特殊节日、有修饰的上午/下午/晚上（如on Monday,on June 1st,ona rainy afternoon): -at用于具体时刻、固定搭配（如at7:30,at noon,at night)。 例句： -We will have a trip in July.(月份前用in) -My birthday is on October 15th.(具体日期前用on) ,He gets up at6:00 every day..(具体时刻前用at) 真题再现： 1.(2024上海浦东期末，沪外版)Our school trip will be the morning of May20th A.in B.on C.at D.for 答案：B解析：“the morning of May20th”为具体日期的上午，用介词on。 2.(2023江苏苏州期中，沪外版)My family usually visits grandparents_Sundays. 初中沪外版 【寒假专版】 9年级语法精讲 A.in B.on C.at D.with 答案：B解析：星期前用介词om,固定搭配on Sundays“在周日”。 易错点二：地点介词in/on/to的误用 讲解： -in表示在某范围内部（如in China,in the classroom): -on表示两地接壤或表面接触（如on the desk,on the border): -to表示在某范围外部，不接壤（如to the south of the city)。 例句： ,Shanghai is in the east of China.（上海在中国内部，用in) -Mongolia is on the north of China.(蒙古与中国接壤，用on) -Japan is to the east of China.(日本在中国外部且不接壤，用to) 真题再现： 1.(2024浙江杭州期末，沪外版)The post office is the left of the bank. A.in B.on C.to D.at 答案：B解析：“on the left/right of.”为固定搭配，表示“在…的左/右边”，表面接触用on。 2.(2023安徽合肥期中，沪外版)Taiwan is_the southeast of China. A.in B.on C.to D.from 答案：A解析：台湾是中国领土的一部分，在范围内部，用介词。 易错点三：介词for/since与现在完成时的搭配错误 讲解： -for+时间段表示动作持续多久（如for3 years,for a week): -since+时间点表示动作从过去某时开始持续到现在（如since2020,since last month,sincehe came)。 例句： -I have lived here for5 years..(for+5 years时间段) -She has worked in this school since20l8.(since+2018时间点) 真题再现： 1.(2024广东广州月考，沪外版)My brother has stu1 died English_he was6 years old. A.for B.since C.at D.in 答案：B解析：“he was6 yearsold”为过去时间点，用since表示“从…开始”，与现在完成时搭配。 2 初中沪外版 【寒假专版】 9年级语法精讲 2.(2023福建福州期末，沪外版)We have been friends_over ten years.. A.for B.since C.on D.with 答案：A解析：“over ten years'”为时间段，用for表示“持续…时间”，符合现在完成时用法。 易错点四：固定搭配中介词的遗漏或误用 讲解： 部分动词、名词、形容词需与特定介词搭配，不可随意替换或遗漏（如be interested in,look forward to,instead of,different from). 例句： -He is good at playing basketball.(be good at擅長，固定搭配) -I look forward to seeing you soon.(look forward to期待，to为介词，后接动名词) 真题再现： 1.(2024湖北武汉期中，沪外版)My sister is interested painting and music, A.at B.in C.on D.with 答案：B解析：固定搭配be interested in“对…感兴趣”，用介词in。 2.(2023四川成都期末，沪外版)We should try to solve problems_arguing A.instead B.instead of C.because D.because of 答案：B解析：instead of“代替：而不是”，后接名词或动名词，此处接arguing,符合搭配；instead 为副词，不可接宾语。 易错点五：方位介词across/through/over的混淆 讲解： -across表示从表面穿过（如across the road,across the river): -through表示从内部穿过（如through the forest,through the window): -over表示从上方越过（如over the bridge,over the mountain)。 例句： -They swam across the lake..（从湖面穿过，用across) -The light goes through the glass.(从玻璃内部穿过，用through) -The bird flew over the house.(从房子上方飞过，用over) 3 初中沪外版 【寒假专版】 9年级语法精讲 真题再现： 1.(2024山东青岛期末，沪外版)Be careful when you walk_the street.. A.across B.through C.over D.along 答案：A解析：“walk across the street”表示“穿过街道”，从表面通过，用across。 2.(2023河南郑州期中，沪外版)The river flows一the city from west to east. A.across B.through C.over D.above 答案：B解析：河流从城市内部穿过，用hrough:across强调表面，over强调上方，均不符合 语境。 易错点综合演练 综合演练 I单项选择（直击易错点） l.We will have a picnic一a sunny morning.(易错点一) A.in B.on C.at D.for 2.Japan is._the east of China.(易错点二) A.in B.on C.to D.at 3.She has lived in this city2019.(易错点三) A.for B.since C.on D.in 4.My brother is good一playing basketball.(易错点四) A.at B.in C.on D.with Ⅱ.用所给词的适当形式填空（强化易错点区分） 1.We usually have dinner一7：00p.m.(at/in/on)(易错点一) 2.The cat ran_the door and hid under the bed.(across/through/over)(易错点五) 3.They have been learning French_three years.(for/since)(易错点三) 4.He succeeded_working hard.(by/in/with)(易错点四) I1.短文填空（综合运用五大易错点） 用适当的介词填空，使短文完整通顺。 Last Sunday,I went to the park 1.-my friends.We met 2.-9:00 a.m.at the school gate.Then we walked 3.the street and crossed a bridge 4.-the river.The park is 5.-the south of our school.We played games under a big tree and had lunch 6.-noon.In the afternoon,we went 7.-the forest to pick 4 初中沪外版 【寒假专版】 9年级语法精讲 flowers.I was interested 8.the beautiful birds singing in the trees.We went home 9.5:30 p.m.I had a great time and I'm looking forward 10.going there again. V连词成句（聚焦易错句式） 1.in,we,will,a,trip,have,summer()(易错点一) 2.the,is,to,library,the,of,north,school,,our()（易错点二) 3.has,he,English,studied,since,years,,five,ago()(易错点三) 4.instead,,we,of,should,reading,books,.watch,TV,()(易错点四) 参考答案 I单项选择 1B2.C3.B4.A Ⅱ.用所给词的适当形式填空 1.at 2.through 3.for 4.by I.短文填空 1.with 2.at 3.along 4.over 5.in 6.at 7.through 8.in 9.at 10.to V.连词成句 1.We will have a trip in summer. 2.The library is to the north of our school. 3.He has studied English since five years ago. 4.We should read books instead of watching TV. 5