介词(短语)介词和介词短语是高考每年必考的一个考点。
命题形式主要为语篇填空和短文改错，在写作中也会用到该考点。
其考点主要涉及常用介词的用法区别，介词与动词、名词、形容词等的常见搭配，介词的固定搭配等。
在语法填空中：当空格后的名词或者动名词不是做主语、表语，也不是做动词的宾语时，特别注意考虑搭配。
介词in, with, by 在语法填空中考察频率很高，也极易混淆。
可以这样记忆：in+材料；with+具体的工具；by+具体的工具。
eg. 1. I was searching these three Western lowland gorillas I'd been observing. (2018.全国卷III)2. But my connection with pandas goes back my days on a TV show in the mid 1980s. (2016.全国卷II)3. Chopsticks are not used everywhere in Asia. In India, for example, most people traditionally eat their hands. (2016.全国卷III)4.After school she plans to take a year off to model full time before going to university to get a degree engineering or architecture. (2017.全国卷III)在短文改错中：如果句子中不缺少主语或者表语，动词后又不缺宾语，则在名词或者代词前常缺少介词。
①留心介词遗漏现象。
命题人通常利用中英文表达习惯的不同和考生的汉语思维习惯，将不及物动词后面的介词漏掉。
如：look (at), listen (to), take care (of)等。
②留心介词冗余。
命题人通常利用考生对于及物动词和不及物动词的模糊认识设置介词错误，如不该用介词的短语中用了介词，next year常写成in next year;在及物动词后常故意加一个介词，比如marry sb中间常故意多加一个to, approach sb中间常加一个to, enter the room中间常加一个into, return my book 常错误的写成return back my book.eg. 1. They have also bought for some gardening tools. (2017.全国卷II)2.While they chatted, my father would lift my sister and me up ti sit in the top of the fridge. (2016.浙江高考)3.My uncle says he never dreams becoming rich in a short period of time. (2016.全国卷I)4.Still I was unwilling to play the games sometimes. (2018.全国卷II)一、部分介词精讲(1)at:用于表示时刻，时间的某一点。
at noon在午时at night在夜间at present目前(2) on:用于星期，某天，某一天的上午、下午、晚上(指具体的某一天时，一律用)on Saturday, on a cold morning, on March 5(3) in:用于表示周、月、季节、年、泛指上午、下午、晚上。
在...之后，表未来时间。
I heard that she would be back in a month.in 1999 在1999年in November 在11月份in summer 在夏季(4) against (表示方位)倚靠着……；(表示态度)反对；(表示对比)以……为背景eg. An agreement seems to be impossible because the majority of the committee members are against it.(2012•陕西卷)(5)beyond (表示程度)超出；非……所能及Everybody was touched beyond words after they heard her moving story.(6) with(表示关系)和……在一起；(表示状态)具有，带有；(表示方式)用……；凭借…… ；(表示对象)关于……；(表示伴随)随着；(表示原因)由于，因为The dictionary is what I want, but I don't have enough money with me.(2010•重庆卷)(7)表示范围的between 和amongbetween 一般用于两者范围之间。
among 常用于三者或者三者以上范围或者数目不确定的事物之间。
eg. 1.They planted a lot of trees between the two buildings.2. The wild animals usually hide among the trees during the daytime.(8)表示除...之外的except, besides, except for, apart fromexcept表示“除...之外(其他的都)”, 其后的宾语是被排除在外的。
besides表示“除...之外(其他的也)”, 其后的宾语是被排除在内的。
except for 后被排除的内容与主语往往不是同一类的。
apart from 意为除...之外，可包括except 和besides 两者含义。
eg. 1. All my friend took part in the exam except John.2. He has learned German, French besides English.3. She felt fine except for being a little tired.4. I ate everything apart from the soup.(9)表示支持反对的介词against，意为反对。
此外，against还有倚靠、相反、在...的衬托下、与...比赛等意思。
for指在观点或者主张与某人采取一致的态度，意为赞成，同意，与in favor of 同义.eg. Are you for or against this plan?(10)表示方位的介词through, across, past, overthrough和across 都表示穿过。
through表示从内部穿过，across表示从内部穿过。
past表示从旁边经过。
over表示从上方跨过。
eg. 1. walk through the gate 2. drive past a supermarket 3. walk across the square 4. fly over the mountain1.Most people work because it's unavoidable. ________ contrast，there are some people who actually enjoy work.2. Last year was the warmest year on record，with global temperature 0.68℃________the average.3. Many of the things we now benefit from would not be around but ________Thomas Edison.4. They believe that there are transport developments ________the corner that will bring a lot of changes for the better.5. A serious study of physics is impossible ________ some knowledge of mathematics.6. The Smiths are praised ________ the way they bring up their children.7. Children need friends ________ their own age to play with.8. The dictionary is what I want，but I don't have enough money ________ me.9. My father warned me ________ going to the west coast because it was crowded with tourists.10. a sunny afternoon, I as well as several of my classmates went on a trip to the beaches to get an escape from our pressure of study.11. I would like a job which pays more, but ______ the other hand I enjoy the work I’m doing at the moment.12. Leave your key with a neighbor ______ case you lock yourself out one day.13. Fred entered without knocking and, very out of breath, sank ___________ a chair.14. I like Mr. Miner’s speech; it was clear and _______________ the point.15. I began to feel _____________ home in the new school when I saw some familiar faces.16. Everything was perfect for the picnic except _______________ the weather.17. Scientists are convinced _________ the positive effect of laughter on physical and mental health.18. After the earthquake, the injured were cared ______ in the local hospitals or taken to the hospitals in the neighboring cities.19. The open-air celebration has been put off because ______ the bad weather.20.A survey has shown that the morning rush hour appears to be the most likely time for a road rage attack, and attackers are most likely to be their 20s or 30s.B练习1. Bill insisted in staying near the car.2. Suddenly we caught sight at a car and some men.3. When I have free time I go a long walk.4. Most people can quickly get for help from a doctor or go to a hospital since they are ill.5. …and some books, for example, books for history, science, cooking and gardening are also6. I never knew about a ride down a river could be so exciting.7. It was very kind for them to meet me at the railway station.8. In fact, they are planning to visit China in next year.9. We practice for three times every week.10. Thanks very much on inviting me to your birthday party on Sunday.学习技巧总结：1. 介词和介词短语的学习，一定是一个如积月累的过程，在平时的学习中，多积累，多留心。