语法———介词in on at Part 1:知识点 介词:是一种虚词,在句子中表示名词或代词与其他词之间的关系,不能单独做为句子成分,常位于名词或代词前面构成介词短语。 二、具体用法: 常用介词 1.in 表示方位:在……里面 例句:There are three books in my bag.我书包里有三本书。 表示地点: 表示在大地方 例句:I live in Hangzhou.我住在杭州。 表示属于该范围 例句:Hei Longjiang lies in the north of China.黑龙江在中国北部。 表示时间: 表示一段时间(比较长) 例:in summer在夏天 in 2021在2021年 in February在二月 表示在早上、下午、晚上 例:in the morning/afternoon/evening 表示使用某种材料、语言等: 例句:I can sing the song in English.我能用英语唱这首歌。 2.on 表示地点:在……上面 例句:There is an apple on the desk.桌子上有一本书。 表示时间: 表示在具体某一天的上午、下午或晚上 例:on June thirteenth在六月13日 on the morning of May 1st 在五月一日的早上 表示在星期几的上午、下午或晚上 例:on Friday在周五 on Saturday afternoon在周六的下午 at 表示在小地点: 例:at school /home 表示时间点: 例:at seven在七点 at night在夜晚 Part 2:练习 一、用介词填空。 1.My mother begins to work _____ 8:00 _____ the morning. 2.Do you stay _____ home _____ weekend 3.They live _____ a new house now. 4.Xinjiang is _____ the west of China. 5.Lily usually have breakfast _____ the morning. 6.They often have lunch _____ half past twelve. 7.What’s this _____ English 8.There is a big gym _____ my school. 9.She came to this city _____ 2020. 10.It often snows here _____ winter. 11.I will be back _____ a month. 12.Don’t watch TV too much _____ the evening. 13.Sally was born _____ May 11th. 14.We don’t go to school _____ Saturday and Sunday. 15.They were happy _____ that time. 16._____ the age of ten, I began to learn English. 17.What do you often do _____ noon 18._____ a cold winter morning, I met her in the street. 19.Mrs. Green came to Beijing _____ 2005. 20.Children wake up very early _____ the morning of Christmas Day. 答案: 1.at in 2.at on 3.in 4.in 5.in 6.at 7.in 8.in 9.in 10.in 11.in 12.in 13.on 14.on 15.at 16.At 17.at 18.On 19.in 20.on