一、介词
1.在某个范围内一点: These boys like playing in the street. 这些男孩喜欢在街上玩。
2.在某物形体内: There is a book in the desk. 书桌里有一本书。
3.进去: After I got in the car, my father drove off. 我上车后,爸爸就开车了。
4.包含在…内: We all know there are thirty-one days in January.我们都知道一月份有 31天。
5.在某段时间内:
in+年份: in 2016在 2016年
in+世纪: in 21 st century在 21世纪
in+季节: in summer在夏天
in+月份: in April在 4月份
in+上午/下午/晚上: in the morning在上午
6.在某段时间以后: I will come back in a few hours. 几小时以后,我就回来了。
7.穿着: That boy in a black hat is my brother. 那个带黑帽子的男孩是我弟弟。
8.用以描述具体的环境: They just cried in the darkness. 他们只是在黑暗中哭泣。
9.表示状态: Please keep your books in order. 请保持书本整齐。
10.表示工作或职位: He is in business. 他从商。
11.表示某物的形式、形状、安排或数量: The students sat in rows to listen to the story.学生生一排排坐着听故事。
12.表示语言和材料等: Please answer the question in English. 请用英语回答这个问题。
13.在…方面: China is a country rich in culture.中国是一个文化丰富的国家。
14.当…时:
In crossing the street, he saved a student was were in danger.
在过马路时,他救了一名处于危险中的学生。
15.用于比率或相对数: one in five五分之一
16. in that原因是: She passed the exam in that her friend helped her a lot. 她能通过考试的原因是她朋友帮了大忙。
二、副词
1.在里面: Some people like drinking coffee with sugar in. 有些人喝咖啡喜欢加糖。
2.进入: Please open the door and go in.请把门打开,然后进去。
3.在家,在工作单位: Nobody was in when we arrived home.当我们到家时,家里没人。
4.当选: He may get in at the last election.他也许能在最后一轮选举中当选。
5. be in for sth即将遭受不愉快的事情 be in at sth在…发生时在场
get in on sth参与,了解 be in with sb与某人十分友好
in and out时常出入
三、形容词
流行的,时髦的: Blue is in in this summer.今年夏天流行蓝色。
四、名词
have an in with sb对某人又影响 the ins and outs of sth全部细节