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精品基础教育教学资料，，需要可下载使用！高考英语二轮复习语法突破：介词一、介词（短语）语法题答题技巧：固定搭配：动词+介词；介词+名词；形容词+介词语境分析：介词基本语意及用法二、介词基本用法：1 .表示地点、位置的介词1)“在2)“上/下”There is a stone bridge over the river.He put his watch on the desk.There is a cat under the table.Please write your name below the line.He stuck his phone beneath the table to avoid being found by the teacher.This place is below sea level.There are over forty students in the .classroom.It took us under an hour to prepare for the coming meeting.3)) across/through “穿过”She ran across the road.He walked through the forest.4)in/on ”在…上”The apples on the tree seem to have been ripe.The bird in the tree seems to be singing.The little boy burst into tears because a ball happened to hit him on the nose.(头，额，鼻,耳,肩，腿，颈)You shouldn't hit anyone in the face.(脸，眼，嘴，腹).表示时间的介词1)in , on, at "在时”注：节日中如含有day,介词用on；如含有festival,常用at；注: 时间名词前有last, next, this, that, these, those, some, any, every, each, one, all 等词时，前面不用介词。
高考英语语法专题复习介词考点汇总介词不能单独使用，必须后跟宾语，构成介词短语在句中使用，介词短语由介词+宾语构成，在句中可作状语、定语和表语等。
in, on, to, with, by, for, at, from, up, beyond, before, among, of, off, against, like, since, besides, behind, during等aboutbe about to …即将做……What/How about …?……怎么样for交换：He sold the house for 50,000 yuan.达到某一数值：She wrote a check for ￡20.赞成，拥护：I’m for getting up early and going to bed early.固定搭配：for one thing首先for example例如for ever永远for the time being 暂时，目前for instance 例如for free免费for the first time 第一次for sale出售，待售watch out for警惕long for 渴望for one’s good为（某人）好with和……一起:：He is playing table tennis with Tom.用……工具：Don’t write with a pencil.随着：The weather changes with seasons.带有，具有：Our company needs people with specialized knowledge.行为方式：Handle with care！原因：She shivered with cold.注意：with的复合结构：常在句中作状语，表示伴随动作、行为方式及原因、条件或结果等情况。
She often sleeps with the window open. (adj.)她经常开着窗户睡觉。
高考英语语法介词复习知识点总结
1.表示时间段的介词
（1）in , after
in +时间段，表示从现在起往后推算一段时间
after +时间段，表示过去某时间往后推算一段时间，如：
Hell come back in two days. 但钟点用after( after three oclock)
He left on July 2 and returned after three days.
（2）in , during
表示在一段特指的时间内，可用in 或during
The work was done in / during the holidays.
表示年份、月份、季节用in , 如:in 1999 ,in June , in winter （3）for the past + 时间段, during
表示在最近一段时间内，句中谓语动词常用现在完成时
I have been in Shanghai in the last few years.
（4）for 表示延续一段时间
Ill study in the U.S for two years.
Ive waited for Bingo for half an hour.。
代词、介词和介词短语考点01 代词1.（2024年浙江卷1月·语法填空）Who knows, perhaps some of the more forward-looking ________ (one) may yet come out with a whole range of “just for you” pack sizes with special offers as well.【答案】ones【解析】考查代词。
句意：谁知道呢，也许一些更有远见的人可能还会推出一系列“只为你”的包装尺寸，并提供特别优惠。
代词one意为“一个人”，在some of后应用复数形式。
故填ones。
preserved for all people of the nation to enjoy-as a national park.【答案】its【解析】考查代词。
句意：这个地方，以其独特而令人惊叹的自然美景，必须被妥善保存供全国人民欣赏。
这里“它们”用形容词性物主代词做定语修饰名词beauty。
3.（2023年全国甲卷改错）In that class, Miss Zhao, our biology teacher, showed we insects on stamps.【答案】we→us【解析】考查代词。
句意：在那节课上，我们的生物老师赵老师给我们看了邮票上的昆虫。
作动词show的宾语，应用宾格us。
故we改为us。
4.（2023年全国乙卷改错）Last Friday my mom decided to color his hair. She studied with all the hair products at the drugstore.【答案】his → her【解析】考查代词。
句意：上周五，我妈妈决定染头发。
此处指“我妈妈染她的头发”，应用代词her。
故his 改为her。
5.（2022年北京卷语法填空）Since people can’t always eat out or cook for ________ (they), they get takeout or order delivery.【答案】themselves【解析】考查反身代词。
高考高中英语核心语法详解介词第一节基础知识1. 定义从字“介”上理解，介词是一种媒介，是桥梁，主要用于交代其所连接的前后两部分的关系。
从狭义角度讲，介词也可以说是动词的替身。
介词的用法就是放在名词前面、与名词（称为它的宾语）共同构成一个意义单元、称为介宾短语，当作修饰语使用。
介宾短语可以当形容词或副词使用。
2.介词的分类依据介词后面是否有宾语，分为介系词和介副词。
3.介系词主要是指后面可以接宾语的介词，由此构成介宾短语，介词后面的宾语主要是以名词性质的词来做。
例：in trouble 陷入麻烦on the table 在桌子上Bob is in trouble. 鲍勃陷入麻烦。
A red apple is on the table. 一个红苹果放在桌子上了。
4.介副词后面没有宾语，而是直接当副词使用。
Come in. 进来！The soldier stood up. 那名士兵站起来了。
5. 介副词和介词共同使用Mary went down to the basement. 玛丽去了地下室。
down 是介副词，后面没有宾语、直接修饰动词went；to 是介系词，后接名词词组the basement 当宾语、构成一个介词词组to the basement；went 看作不及物动词，后接介词to,再加宾语the basement；He has gone over to your office.over 是介副词，直接修饰动词has gone；to 是介词，后接名词词组your office 当宾语，构成一个介词词组to your office；gone看作不及物动词，后接介词to,再加宾语your office；第二节介系词在短语层面的应用介系词加宾语构成介宾短语后，主要出现在后修饰位置，其作用是交代中心词与其后的宾语之间的关系。
此时介宾短语也可视为形容词的性质。
例：a.2000 entry into the World Trade Organization2000年加入世贸b.an important earner of foreign exchange 赚取外汇的重要来源c. a boom in exports 出口增长第三节介系词在句子层面的应用1. 前状/后状：With the warm weather, the trees grow very well. 天气暖和，树木生长的很好！Kill two birds with one stone. 一石二鸟/一举两得。
高考英语语法填空常考介词在高考英语语法填空中，介词是常考点之一，这些介词考点常常是考生们易错易混淆的地方。
下面就对每个介词考点进行详细的解释和扩充，帮助考生们更好地掌握这些介词的使用规则。
1. 表示时间的介词：at：常用于表示具体的时间点，如at 8 o'clock，at noon等。
on：用于表示在某一天或具体的某一天的上下午，如on Monday，on the afternoon of July 4th等。
in：用于表示在某个时间段内，如in the morning，in the afternoon等。
at the beginning of：在...的开始。
at the end of：在...的结尾。
in the middle of：在...的中间。
during：在...期间。
2. 表示地点的介词：at：用于表示在某个具体的地点或位置，如at the bus stop，at home等。
in：用于表示在某个建筑物、城市或较大的地理区域之内，如in the classroom，in Beijing等。
on：用于表示在某物的表面或与某物接触的表面，如on the table，on the ground等。
near：在...附近。
by：在...旁边。
between：在...之间。
in front of：在...的前面。
behind：在...的后面。
3. 表示方式的介词：by：用于表示通过某种方式或手段，如by bus，by phone等。
in：用于表示以某种状态或形式存在，如in English，in writing等。
on：用于表示在某种物体或表面上，如on the wall，on the table等。
4. 表示原因的介词：because of：由于...的原因。
due to：由于...的缘故。
这两个介词都可以用来表示原因，但略有区别。
because of更强调直接原因，而due to更强调因果关系。
介词与介词短语考点例析研读高考英语试题可发现介词是历年的必考考点。
近年来高考英语试题对介词的考查，不再仅限于对单个介词进行考查，而是通过考查与介词相关的固定搭配、辨析介词短语等，来对介词进行更精细化的考查。
高考对介词的考查难度逐步加大，这就需要学生在平时熟练掌握介词的基本用法，精确掌握介词短语的用法，以提高相关试题的得分率。
一、介词句法功能概述介词是一种虚词，在句子中不可单独作某种句子成分。
需要在介词后加动名词、名词或者代词等构成介词短语，或者在介词后面跟从句，才能在句子中作状语、定语、宾补或表语等成分。
典例：It was not ... concept the late 1980s.解析：until。
分析句子结构可知本句考查not ... until ...介词结构，意为“直到……才……”。
典例：If you don’t want to encounter such embarrassment again，I suggest that the next time you go to my grandmother’s house dinner，learn some cooking tips her.解析：for；from。
for作介词，意为“为了”，for dinner意为“为了吃饭”，介词短语在句中作状语表示目的；learn ... from ...意为“从……学习……”是固定短语。
二、常见介词用法例析1. in，at，on，off，to表位置、空间、范围时的用法作介词时，in意为“在……内，在……中”，表示在较大的地方，或者强调物、人、地方等在某一个范围内。
at意为“在（某处）”，表示在较小的地方。
on意为“在……上”“接近”等，表示与参照物接壤或毗邻。
off意为“在……外”“离开，偏离”等。
典例：... the city the Tang dynasty.解析：in。
表示在某个朝代，应用介词in。
高考英语复习语法知识专题讲解专题五介词与介词短语一、介词的句法功能1.作定语The key to the door is missing.2.作状语Her eyes were tired from long reading.3.作表语Japan is to the cast of China.4.作宾语补足语Make yourself at home.二．介词的宾语易错点名词、代词Don't forget to turn off the lights before leaving your classroom.Don't hide behind others.数词There was only one piece of cake, but we can cut it into two.The students began to show up by twos and threes.When we went in,we found his room at sixes and sevens.形容词、副词Her pronunciation is far from perfect. His uncle is from abroad. 动词-ing形式I succeeded in passing the driving test.On arriving in Venice, we knew that it was a city of water.动词不定式The plane is about to take off.宾语从句She got very angry because of what he had said.I am thinking of how I shall do more for the people.疑问词+ 不定式短语Marx gave us some advice on how to learn foreign languages. They are discussing how to sell the goods elsewhere.动词原形His father had nothing to do all day except play cards.介词短语The boy jumped from behind the door. The ball rolled out from under the table.三．介词的省略用法易错点1.of的省略The two girls are(of) the same age.2.from的省略Nobody can prevent us(from)getting married. You must stop her(from)telling such lies.3.in 的省略He spends nearly half of his monthly income(in)buying books.He wasted time(in)doing nothing.4.on的省略Keep(on)talking amongst yourselves.I'll be back in a minute.四．常用介词的用法比较集锦1.表示时间in/after in十时间段：一般用于将来时after+时间段：一般用于过去时He'll be back in a week. 他一周后回来。
思维导图梳理高中语法(1)：名词与介词距离高考还有一段时间，不少有经验的老师都会提醒考生，愈是临近高考，能否咬紧牙关、学会自我调节，态度是否主动积极，安排是否科学合理，能不能保持良好的心态、以饱满的情绪迎接挑战，其效果往往大不一样。
以下是本人从事10多年教学经验总结出的以下学习资料，希望可以帮助大家提高答题的正确率，希望对你有所帮助，有志者事竟成！养成良好的答题习惯，是决定高考英语成败的决定性因素之一。
做题前，要认真阅读题目要求、题干和选项，并对答案内容作出合理预测;答题时，切忌跟着感觉走，最好按照题目序号来做，不会的或存在疑问的，要做好标记，要善于发现，找到题目的题眼所在，规范答题，书写工整;答题完毕时，要认真检查，查漏补缺，纠正错误。
总之，在最后的复习阶段，学生们不要加大练习量。
在这个时候，学生要尽快找到适合自己的答题方式，最重要的是以平常心去面对考试。
英语最后的复习要树立信心，考试的时候遇到难题要想“别人也难”，遇到容易的则要想“细心审题”。
越到最后，考生越要回归基础，单词最好再梳理一遍，这样有利于提高阅读理解的效率。
另附靠前30天复习方法。
应用文写作是测试学生语言交际能力和语言运用能力的有效题型。
学生只有熟悉并掌握常见的应用文类型及其涉及的写作要点和常用句式，才能结合具体的写作语境提炼出写作的全部要点。
下面是天学英语教研团队给出的各个习作类型的常规要点和常用句式，以帮助学生攻克难关，取得高分。
名词1.名词的定义与分类定义：名词（英文noun/n）,是表示人，事，物，地点或抽象概念的词。
可分为：可数名词，不可数名词，抽象名词，具体名词，专有名词，集体名词，复合名词等。
2.名词的考点（义，性，数，格）名词的词义:①词义辨析：①熟词生义：trip/tap/grill/settle/plate/interest/chair/boss/①习惯用法：give it some thought/give thought to注意：结合语境，细细体会；多读多听多记多用词性转换：①动词变名词: describe—n._____ argue—n.______ explain—n._____complain—n._____ guide—n._____ weigh—n._____①形容词变名词:honest—n._____ wise—n._____ natural—n._____ strong—n._____①名词变名词: science—n._____（科学家）phenomenon—n(pl)._____ service—n.____ (仆人）注意：掌握规律，注重积累名词的单复数：① 可数名词变复数:① 不可数名词的辨认: （不能变复数）常见不可数名词：homework, housework, weather, advice, progress, fun,information, equipment, furniture, rubbish, luggage,baggage, labour, money,milk,bread,traffic,luck...① 注意修饰词语:One of/ several/a few/many/all/both/some/a good many/a handful of/a numberof+pl.na little/much/a great deal of...+(u)na lot of/ lots of/plenty of/ a large quantity of ...+(c)n/(u)n① 抽象名词具体化：当抽象名词在语境中指某人或某物，与不定冠词（a/an）连用，这叫抽象名词具体化。
高考英语语法重难点复习百题斩-介词距离高考还有一段时间，不少有经验的老师都会提醒考生，愈是临近高考，能否咬紧牙关、学会自我调节，态度是否主动积极，安排是否科学合理，能不能保持良好的心态、以饱满的情绪迎接挑战，其效果往往大不一样。
以下是本人从事10多年教学经验总结出的以下学习资料，希望可以帮助大家提高答题的正确率，希望对你有所帮助，有志者事竟成！养成良好的答题习惯，是决定高考英语成败的决定性因素之一。
做题前，要认真阅读题目要求、题干和选项，并对答案内容作出合理预测;答题时，切忌跟着感觉走，最好按照题目序号来做，不会的或存在疑问的，要做好标记，要善于发现，找到题目的题眼所在，规范答题，书写工整;答题完毕时，要认真检查，查漏补缺，纠正错误。
总之，在最后的复习阶段，学生们不要加大练习量。
在这个时候，学生要尽快找到适合自己的答题方式，最重要的是以平常心去面对考试。
英语最后的复习要树立信心，考试的时候遇到难题要想“别人也难”，遇到容易的则要想“细心审题”。
越到最后，考生越要回归基础，单词最好再梳理一遍，这样有利于提高阅读理解的效率。
另附高考复习方法和考前30天冲刺复习方法。
单句语法填空：1．（2022·黑龙江·鹤岗一中高三开学考试）Having worked for two days, I managed to finish the report ______ schedule.2．（2022·黑龙江·鹤岗一中高三开学考试）We’re going to replace firewood ______ clean energy, improve living environments and creategreen rural areas.3．（2022·黑龙江·鹤岗一中高三开学考试）My parents were very anxious ______ me, because it was the first time that I had lived abroad alone. 4．（2022·黑龙江·双鸭山一中高三开学考试）Benjamin West, the father of American painting, showed his talent ________ art when he was only six years of age.5．Most of us are more focused ________our tasks in the morning than we are later in the day.6．The first underground passenger railway allowed people to avoid terrible crowds on the roads above as they travelled to and _________ work. 7．I was searching _________ these three western lowland gorillas I’d…8．But she insists ________ us eating healthy food.9．Later, he worked in Africa, where many people suffered from blindness for lack ________ proper treatment.10．While I tend to buy a lot of books, these three were given to me as gifts, which might add to the meaning I attach ________ them. 11．Writing a poem of 120 words will result ________ disqualification. 12．We are often ashamed ________ our shortcomings, our mistakes and our failures.13．Often, only a small part of a museum’s collection is __________ display.14．Joy of reading passed ____________ in the family.15．You don’t need to apologize __________ a minor slip.16．Most food webs, ________ instance, consist of many weak links rather than a few strong ones.17．I ’m sorry to learn that you are upset ____________ being overweight recently.18．I have to put it away and focus my attention ____________ study this week.19．The late flood did much damage ____________ the village. 20．The lifeboat was sent out to rescue the sailors ____________ the sinking ship.21．The newly-built school is intended____________the disabled children.22．What had taken place in the forest reminded me____________a famous saying “A friend in need is a friend indeed. ”23．The number of employees of this company was reduced ____________ 25.24．When you were trying to figure ________ what to buy for the environmentalist on your holiday list, fur probably didn’t cross your mind. 25．In any given office, employees can range from age 22 ________ 70 and beyond, and finding common ground in communication style can be a challenge.26．They finally cured the old man ____________ his illness, who had suffered a lot from it for years.27．Taking part ________ after-class activities makes our school life colourful.28．In looking ________ the stories of biological discovery, I also began to find something else, a collection of scientists, usually brilliant, occasionally half-mad, who made the discoveries.29．I think that your advice is __________ great importance for my English study.30．Thanks for your encouraging comments ________ my performance at the English Oral Contest.31．Modern methods ______tracking polar bear populations have been employed only since the mid-1980s, and are expensive ______ (perform) consistently over a large area.32．（2022全国甲卷）He flew 4, 700 kilometers ________ Xi’an to Kashgar on Sept. 20, planning to hike back to Xi’an in five months. 33．（2018新课标III卷）My name is Mireya Mayor. I was searching________ these three western lowland gorillas I'd been observing. 34．（2020年北京卷）Over time, the bags fall apart________ countless tiny pieces, and fish can accidentally eat some of them.35．（2021年北京卷）While riding his bike home ________ a cold night, he came across a sad-looking elderly woman wandering the streets by herself.36．（2021新课标II卷）A company representative wrote back and told me the airline was switching over ________ plastic to paper cups on all of its 1,200 daily flights.37．（2022全国甲卷）He flew 4, 700 kilometers ________ Xi’an to Kashgar on Sept. 20.38．（2022·内蒙古·呼和浩特市教育教学研究中心一模）Word came that the Beijing- Zhangjiakou high-speed railway, located in North China, is now ________construction, and is expected to be completed by 2020 in preparation for the cities to host the 2022 Winter Olympic Games. 39．（2022·江西·模拟预测）When visiting China, many travellers expect to have close contact with the giant panda, one of the most adorable creatures in the world. Actually, no other country can provide such a ________ (wonder) chance like China, as the giant panda is native ________China and thus serves as China's national symbol. 40．（2022·广西桂林·二模）Snowflakes are created like magic, awakening(唤醒) characters often seen in Chinese New Year paintings, such as Qin Qiong and Yuchi Gong, two gods of the door, competing ________ alpine (高山) skiing, and Mu Guiying and Yang Zongbao, a couple as well as generals of the Song Dynasty (960-1279), engaging in pair skating. 41．（2022年新高考I卷）Giant pandas also serve ______ an umbrella species(物种), bringing protection to a host of plants and animals in the southwestern and northwestern parts of China.42．（2022年全国甲卷）Now, Cao has started the second part of his dream to walk along the Belt and Road route. He flew 4, 700 kilometers ______ Xi’an to Kashgar on Sept. 20, planning to hike back to Xi’an in five months.43．（2022年全国乙卷）May 21st this year marks the first International Tea Day, which was named officially ______ the United Nations on November 27th, 2019.44．The national railway operator said it will adjust bullet train ticket prices on six railway lines according ________ passenger numbers. 45．Another conflict started ________ him and me, but this time it was about color of the object.46．One day, however, Han skipped the housework and joined some friends ________ a “game” of throwing rocks at passing cars.47．Caring for an elderly parent can take great efforts emotionally and physically, and the financial challenges can sometimes seem ________ our ability.48．You are not wearing your seat belt, so you can slide in and out of your seat easily. That sounds ________ a lot of fun.49．On top of that, the system can help cut the time needed to check class attendance ________ only a few seconds.50．The music of Beijing opera can be divided ________ the Xipi and Erhuang styles.51．There will always be someone who will stop you in the street, asking for directions ________ the nearest ATM.52．The “new four great inventions” are all related ________ China’s high-tech innovation (创新), which has improved the people’s living standard. 53．Northerners tend to eat more meat and dairy for the purpose ________ fighting against the cold weather.54．________ this particular occasion, the moon will appear 7 percent larger and 16 percent brighter than usual.55．There was a note ________ his teacher informing that my son was invited to attend the competition but the parents were expected to pay for their children.56．In addition ________ many awards Damon has received, including Academy Awards and Golden Globe Awards, he received a star on the Hollywood Walk of Fame in 2007 for his work in the film industry. 57．She said her name was Miss Bai and kindly offered to show me ________ the city.58．During the eighteenth century, it was usual for several neighboring towns to get together to select a faraway spot ________ a dump site (垃圾场).59．I was a member ________ bird conservation organization at the time, so we often took care of injured birds.60．There was once a beautiful girl who hated herself because she was blind. She also hated everyone else ________ her boyfriend. 61．There I would watch the bamboo trees bend ________ the pressure from the wind.62．The movie also served ________ a springboard for Chinese tourism to Thailand.63．All in all, we students should behave ourselves and keep away ________ violence.64．The term “parkour” was first introduced by David Belle and Sebastiar Foucan in the early 1980s. ________ that time, they were two teenagers. 65．Robot groups are already ________ use. The online store Amazon uses robots to move items in its huge storage buildings.66．The survey shows that roughly three-quarters of the 86 tree species surveyed have shifted their population centers westward ________ 1980. 67．Dr. Ge Yun operates ________ people with all types of birth defects. 68．You wouldn’t think that a few months of exercise in your teens would be enough ________ the rest of your life.69．Farming produced more food per person ________ hunting and gathering.70．Some time after 10,000 BC, people made the first real attempt to control the world they lived ________，through agriculture. 71．Museums must compete _________ people’s spare time and money with other amusements.72．The artist was finally humbled (谦卑) by the greatest artist ________ earth, Mother Nature.73．Water mist was sprayed ________ the air ,which was then crystallized (结晶) the snow with the freezing air temperature.74．“Accusing the British ________ having no sense of humor is like telling Rolls-Royce that its cars are down-market.”75．The asteroid (小行星) 10930 Jinyong (1998 CR2) is named ________ him.76．After taking my pulse, looking at my tongue, and asking a few questions ________my diet and lifestyle, the acupuncturist correctly reasoned that I was worn-out.77．Analysis of elements in the relics indicates sources similar ________ those of other cultures along the Yangtze River.78．Changes to water resources can have a big impact ________ people’s lives.79．Scientists say that another 26.5 trillion pounds will be produced worldwide ________ 2050.80．It has long been a dream for the Lao people to see their country change from a land-locked country ________ a “land-linked one”, and the opening of the new railway is a big step toward turning their dream into reality. 81．________ other words, just “lie flat”.82．It began on January 19 and finished ________ the early morning of January 20.83．Studies have shown that students who use handwriting to take notes in class remember information better—improving their scores________as much as 15 percent.84．For Lucy, nothing beats traveling, which she described ________ her favorite part of being alive.85．This trend, which was started by the medical community (医学界)________ a method of fighting heart disease, has had some unintended side effects.86．Museums must compete ________ people’s spare time and money with other amusements. Most museums also welcome school groups and arrange special activities for children.87．Various types ________ trips are now being classified as ecotourism.88．I wonder how much you will charge me________the six-week course. 89．They expect answers to get them back ________ their feet again. 90．The spirit advised them to wrap the rice and bind it________ throwing it into the river.91．He sold or exchanged some of the milk in the town nearby________ other food and made cheese and butter for the family with what was left. 92．As for parents, nothing can be compared________ their children's physical and mental health.93．The global journey is led by an expedition leader, Steve Moore, ________ memory of his father, a fire-fighter who died of lung cancer at the age of 63.94．Mary sold the house even though it was________ her husband's wish. 95．In high school, I became curious________ the computer, and built my first website.96．Despite no finals, the students still have plenty of work to do. However, they seem to enjoy their engagement in math and more time ________ their family during phone-free hours.97．The citizens in Paris gathered around the cathedral, praying ________ the hundreds of firefighters who fought the flames.98．Their efforts resulted________ the birth of a 1985 book, Understanding China Through Cartoons.99．Transport comes fairly high up in the list, with buses, planes and trains all capable________ driving us mad.100．What is culture? Culture is the shared characteristics and knowledge of a group of people, ________ (include) their language, religion, food, social habits, music and arts.参考答案：1．on【详解】考查介词。
