最新初中英语语法知识—介词的全集汇编及答案
必备英语初中英语介词完整归纳含答案解析
必备英语初中英语介词完整归纳含答案解析一、初中英语介词1．He drove so fast at the turn that the car almost went ______the road.A. offB. onC. alongD. behind【答案】 A【解析】【分析】句意：他转弯时开得太快了，以至于汽车差点驶出马路上。
go和如下选项搭配，分别表示，A驶出，B继续，C沿着，根据drove so fast，可知与驾驶有关，故是驶出，故选A。
【点评】考查介词辨析，注意go off的用法。
2．Humans can not make progress dreams.A. withB. withoutC. throughD. about【答案】 B【解析】【分析】句意：没有了梦想，人类就不会进步。
A.带着，有；B.没有；C.通过；D.关于。
梦想是人类前进的动力，根据Humans can not make progress，可知人类不会进步，是因为没有梦想，应会使用介词without，故答案是B。
【点评】考查近词辨析，注意识记介词without的用法。
3．The high-speed train Qingdao and Beijing travels faster now. The train ride takes only about three hours.A. fromB. amongC. inD. between【答案】 D【解析】【分析】句意：现在青岛和北京之间的高速列车跑得更快了。
火车车程只有大约三个小时。
from 从；among 在……中；in 在……里；between 在……之间；根据后面的and，可知是固定搭配，between…and…，在……和……之间，故选D。
【点评】此题考查介词辨析。
根据句意和上下文的联系确定所使用的介词。
4．—Do you have this T-shirt in a different color?—I'm afraid not. It only comes red.A. ofB. inC. for【答案】 B【解析】【分析】句意：——你有不同颜色的这件t恤吗？——恐怕没有。
新初中英语语法知识—介词的真题汇编附答案解析
一、选择题1．—What is Linda doing?—She is talking ________ the phone with her friend ________ a movie.A．in; for B．on; on C．about; on D．on; about2．— Are you going to school________bus?—No, we are going________Mary’s mother’s car.A．by, by B．from, by C．by, in D．in, at 3．Although he was ____________ my opinion, the old professor didn’t come up with his own. A．against B．on C．for D．in4．The moonlight is shining in the window. Everything in the room looks so beautiful. A．over B．through C．across D．past5．Jiangsu Development Summit was open _____ May 20th in Nanjing.A．on B．in C．at D．by6．She is talented ________ music but I am good at sports.A．at B．in C．on7．Taiwan is __________ the southeast of China and Hunan is __________ the south of Hubei. A．in；in B．in；on C．on；in D．on；to 8．Taiwan is _________ the southeast of China.A．to B．in C．from D．on9．The Qingming Festival of this year falls _____ April 5th and thousands of cars poured into high-ways _____ the early morning of the holiday.A．on; in B．in; on C．on; on D．in; in 10．—When does your mother go shopping?—Usually Sunday morning.A．on B．in C．at D．after11．— What kind of home do you ? — A flat three bedrooms.A．live in; with B．live; with C．live in; has D．live; has12．It is reported that he won an award________Best Actor________his role in that film. A．as; in B．as; for C．for;for D．for; in13．My computer game is ______ the drawer and my books are _______ the sofa.A．on; on B．in; in C．on; in D．in; on14．Can you jiaozi English?A．say;with B．speak;in C．say;in D．tell;about15．— Hey, Nancy. What do you usually do ________ rainy days? — I usually listen to music. A．in B．on C．at D．to16．It’s very kind ___________ you to lend me your reusable shopping bags.A．of B．for C．to D．with17．My friend, Henry was born June 10th, 1997.A．in B．on C．at D．for18．Nature has given us the ability to learn________watching others. Children do it naturally. A．by B．in C．on19．There________ a hamburger and bananas________there.A．is;in B．are;in C．is;/ D．are;/20．They got married_______ 1960. That means they have been married _______ 1960. A．at; since B．on; in C．in; since D．for; since 21．—It's wonderful, isn't it?— Yes, The large grassland, reaching out far away, looks very beautiful________the blue and clean sky.A．against B．above C．through D．past22．I have to prepare ________my math test________ Friday afternoon.A．at; on B．for; on C．on ;for23．—Where is Hubei?—It’s _______ the north of Hunan.A．in B．to C．on24．I want to learn English well because I don’t want to talk with foreigners ________ anybody else.A．by B．through C．across D．at25．Thanks ______your family photos, they are very nice.A．to B．in C．for D．at【参考答案】***试卷处理标记，请不要删除一、选择题1．D解析：D【解析】【分析】【详解】句意：——琳达在干什么？——她正在和朋友通电话谈一部电影。
12 介词in,on,at 全国通用版(含答案)
语法——介词in on atPart 1:知识点一、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（1）表示方位：在……里面例句：There are three books in my bag.我书包里有三本书。
（2）表示地点：A.表示在大地方例句：I live in Hangzhou.我住在杭州。
B.表示属于该范围例句：Hei Longji ang lies in the north of China.黑龙江在中国北部。
（3）表示时间：A.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B.表示在早上、下午、晚上例：in the morning/afternoon/evening（4）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（1）表示地点：在……上面例句：There is an apple on the desk.桌子上有一本书。
（2）表示时间：A.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B.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2.at（1）表示在小地点：例：at school /home（2）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 ______ t he 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 S unday.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 ofChristmas Day.答案：1.at in2.at on3.in4.in5.in6.at7.in8.in9.in 10.i n 11.in 12.in 13.on 14.on 15.at 16.At 17.at 18.On 19.in 20.on。
新初中英语语法知识—介词的全集汇编含答案(2)
一、选择题1．My computer game is ______ the drawer and my books are _______ the sofa.A．on; on B．in; in C．on; in D．in; on2．North Korea is________Asia. It’s________the northeast of China and________the west of Japan.A．in, to, on B．in, on, to C．on, in, to D．to, on, in 3．— Are you going to school________bus?—No, we are going________Mary’s mother’s car.A．by, by B．from, by C．by, in D．in, at4．Lily and Lucy _______ their mother. They have big eyes and yellow hair.A．like both B．both are like C．both like D．are both like 5．(2016●泰州市) --As a nurse, her work goes taking care of her patients.--Yes, she always thinks of others.A．beyond B．beside C．behind D．between 6．Although he was ____________ my opinion, the old professor didn’t come up with his own. A．against B．on C．for D．in7．Jiangsu Development Summit was open _____ May 20th in Nanjing.A．on B．in C．at D．by8．—When is your birthday party?—It's________.A．at six,on May 24th B．on six,this SaturdayC．in six o'clock this afternoon D．on six,at May 24th9．She is talented ________ music but I am good at sports.A．at B．in C．on10．Taiwan is _________ the southeast of China.A．to B．in C．from D．on 11．—When does your mother go shopping?—Usually Sunday morning.A．on B．in C．at D．after 12．—Why ______ you so busy these days?—Because they arrived ______ London ______ the morning of July1.A．are; in , in B．are; in , on C．do; on , in D．do; at , on 13．We usually have our school trip _______ a morning of April.A．on B．at C．to D．in14．The next Olympic Games will be held in Japan________ 27th July 2020.A．on B．in C．at D．of15．Look! The girl ________ green clothes is my sister and the boy ________ big eyes is my brother.A．in; has B．in a; has a C．in; with D．in a; with a 16．--Which is your teacher?--The one thick(厚厚的)glasses over his eyes is．A．wears B．wear C．with D．has17．There is a computer _______ the desk.A．on B．in C．under D．for18．The accident took place ________ a cold February evening.A．on B．in C．at D．for19．Bill doesn't like playing football，but he often watches football matches (比赛)_____ TV. A．in B．on C．to D．with20．This pair of jeans looks nice _____ Sandy, because she looks very nice _____ blue. A．on; in B．in; on C．for; on D．to; in 21．Nature has given us the ability to learn________watching others. Children do it naturally. A．by B．in C．on22．There________ a hamburger and bananas________there.A．is;in B．are;in C．is;/ D．are;/ 23．—Where is Hubei?—It’s _______ the north of Hunan.A．in B．to C．on24．We started out in early spring and headed west the northern part of Asia. A．through B．between C．among D．across25．If you can’t read the article, it will be meaningless to you. The –less in the word “meaningless” means .A．with B．without C．full of D．out of【参考答案】***试卷处理标记，请不要删除一、选择题1．D解析：D【解析】句意：我的电脑游戏在抽屉里，我的书在沙发上。
初中英语语法总结：方位介词(有答案)
初中英语语法总结：方位介词(有答案)初中英语语法总结：方位介词表示地点的介词in、on、behind、next to、near、over、under(1). in在……里面：XXX XXX.铅笔在课桌里。
(2). on 在……上面：There are some apple on the tree.树上有些苹果。
(3). under在……下面/正下方：What's under your desk?你书桌底下是什么？(4). over在……正上方：There is a shelf over the table.桌子上方有一个书架。
(5). above在……斜上方：Raise your arms above your head.(6). below在……斜下方：XXX(7).XXX在……之后：There XXX.树后有一辆自行车。
(8).XXX在……旁边：There is a cafénext to the barber's.理发店隔壁是一家咖啡馆。
(9).near在……附近：My bed is near the window.我的床在窗户旁。
(10).by在……旁：XXX.第一组：over, above和on的用法1）over指在…的正上方，表示垂直在上。
如:There is a lamp over the desk.2)above指在上方，属于斜上方。
如：Raise your arms above your head.3)on指在上面，表示两物体接触。
如：There is a cup on the table.第二组：under / below的用法：1) under在……上面/正下方：What's under your desk?2) below在……斜下方：XXX.操演：() 1 The boat is passing___ the bridge.A. XXX() 2 Two planes are flying___ the city.A. XXX, below() 3 We can see a river running to the east____ the XXX() 4 Do you see the kite ___ the building.A. XXX参考谜底C B B D第三组：in和on透露表现“在……上”门一类——镶嵌在墙里的，用in书画一类——挂在墙面上的，用on() 1 He put up a map ___ the back wall because there was a hole ___ it.A. on; onB. at; inC. on; inD. on; at() 2 There is a door___ the wall.A. XXX() 3 Any man ___ eyes______ his head can see that he'XXX.A. with; onB. with; inC. on; withD. in; with鸟一类落在树上的，用in；XXX一类长在树上的，用on() 1 There are some birds singing___ the trees.A. XXX() 2 There are so many apples___ that tree.A. inB, XXX第四组：XXX表示“接壤”第四组：XXX表示“接壤”BABAB在A里——用inA和B相邻（接壤）——用onABA和B不相邻（不接壤）——用to练() 1 The United States is ____ the south of Canada and ___ the east of Japan.A. to; inB. on; toC. in; besideD. at; on() 2 The man stood ____the window, XXX() 3 Japan lies____ the east of China.A. XXX参考答案B B B B第五组：at, in表示“在……”1)at透露表现较小的地址。
《中考英语》初中英语语法知识—介词的全集汇编及答案
一、选择题1．He often plays basketball ______five o’clock.A．in B．for C．on D．at2．The Beijing Daxing InternationalAirport opened________ September 25th, 2019.A．to B．at C．in D．on3．The girl often goes to the park many beautiful flowers.A．with B．have C．has D．in4．The elephant is the only animal__________a trunk- a special long nose.A．For B．with C．to5．The bird’s singing came into my room ______ the window and woke me up in the early morning.A．down B．from C．through D．across6．Lily and Lucy _______ their mother. They have big eyes and yellow hair.A．like both B．both are like C．both like D．are both like 7．--There are many theatres _________the island.--Yes, Broadway is the southern end of the island..A．at; at B．on; on C．at; on D．on; at8．Al though he was ____________ my opinion, the old professor didn’t come up with his own. A．against B．on C．for D．in9．—Mary's birthday is ________ March． What about Lucy's？—Her birthday is ________ December 10th．A．in；on B．on；in C．on；on10．It’s necessary for Tony to do ____ thing ____ his classmates do.A．same, as B．same, like C．the same, to D．the same, as11．Jenny’s math lesson is________nine________Friday morning.A．in; on B．at; on C．on; in D．at; in12．The boy read English________every morning ________the age of ten.A．on; in B．on; at C．in; at; D．/; at13．The Qingming Festival of this year falls _____ April 5th and thousands of cars poured into high-ways _____ the early morning of the holiday.A．on; in B．in; on C．on; on D．in; in14．He has a garden __________ a lot of flowers.A．has B．there is C．with15．Thanks ______your family photos, they are very nice.A．to B．in C．for D．at16．He is__________ outgoing student long hair..A．a,with, B．an,with C．a,of D．an,of 17．Shanghai is ________ the east of China and _________ the west of Japan.A．in; to B．in; inC．to; to D．to; in18．My teacher runs ______ the morning. But he doesn't run ______ Sunday morning. A．in；on B．on；in C．in；in D．on；on19．The accident took place ________ a cold February evening.A．on B．in C．at D．for20．Bill doesn't like playing football，but he often watches football matches (比赛)_____ TV. A．in B．on C．to D．with 21．（2017年山东德州）A woman stood ______ the window, watching the children playing games in the garden.A．past B．through C．across D．by22．My daughter usually gets up at 6:00 ________ the morning, but ________ Sunday morning she gets up at 8:00.A．in; in B．in; on C．on; in D．on; on 23．Nature has given us the ability to learn________watching others. Children do it naturally. A．by B．in C．on24．There________ a hamburger and bananas________there.A．is;in B．are;in C．is;/ D．are;/ 25．Taiwan is _________ the southeast of China.A．to B．in C．from D．on【参考答案】***试卷处理标记，请不要删除一、选择题1．D解析：D【解析】【分析】【详解】试题分析：句意：他经常早五点钟打篮球。
新初中英语语法知识—介词的全集汇编附解析
一、选择题1．—How long have you lived in this town?—________2001.A．since B．in. C．for2．—There is a hole in the wall. What is it for?—We have a dog. He can get in or out ________ it.A．past B．through C．across D．over3．—What do you use the shelf ______?—I use it ______ books.A．to; to keep B．to; keepC．for; to keep D．for; keep4．The old man arrived _________ the village _______ a rainy night.A．at; on B．on; at C．in; at D．on; in5．The Beijing Daxing InternationalAirport opened________ September 25th, 2019.A．to B．at C．in D．on6．The girl often goes to the park many beautiful flowers.A．with B．have C．has D．in7．---Would you like some coffee?--Yes, and please get me some milk. I prefer coffee _________ milk.A．on B．to C．for D．with8．My uncle has taught in this school________ he was twenty years old.A．after B．for C．until D．since9．The Qingming Festival of this year falls _____ April 5th and thousands of cars poured into high-ways _____ the early morning of the holiday.A．on; in B．in; on C．on; on D．in; in 10．Thanks ______your family photos, they are very nice.A．to B．in C．for D．at11．My cousin Mary was born ＿＿＿ a singing voice.A．from B．in C．with12．The boy read English________every morning ________the age of ten.A．on; in B．on; at C．in; at; D．/; at13．I can’t go out ________ school nights because I have to finish my homework first.A．at B．in C．on14．—What is it _______ English ?—Sorry, I don’t know .A．in B．with C．from D．on15．My teacher runs ______ the morning. But he doesn't run ______ Sunday morning. A．in；on B．on；in C．in；in D．on；on16．—What is Linda doing?—She is talking ________ the phone with her friend ________ a movie.A．in; for B．on; on C．about; on D．on; about 17．The accident took place ________ a cold February evening.A．on B．in C．at D．for18．It’s very kind ___________ you to lend me your reusable shopping bags.A．of B．for C．to D．with19．If success is a gate, the road this gate must be made up of difficulties.A．towards B．against C．opposite D．beyond 20．—What's the weather _______ in Spring?—Pardon?（什么，请再说一遍）—How is the weather________in Spring?A．like;/ B．/;like C．be like;/ D．/;be like 21．—It's wonderful, isn't it?— Yes, The large grassland, reaching out far away, looks very beautiful________the blue and clean sky.A．against B．above C．through D．past 22．—Where is Hubei?—It’s _______ the north of Hunan.A．in B．to C．on23．We started out in early spring and headed west the northern part of Asia. A．through B．between C．among D．across24．I want to learn English well beca use I don’t want to talk with foreigners ________ anybody else.A．by B．through C．across D．at25．We have four lessons ________ the morning.A．in B．on C．at D．for【参考答案】***试卷处理标记，请不要删除一、选择题1．A解析：A【解析】【分析】【详解】句意：——你在这个镇上住了多久了？——自2001年以来。
新初中英语语法知识—介词的知识点总复习附答案(1)
一、选择题1．My teacher runs ______ the morning. But he doesn't run ______ Sunday morning.A．in；on B．on；in C．in；in D．on；on2．The elephant is the only animal__________a trunk- a special long nose.A．For B．with C．to3．Although he was ____________ my opinion, th e old professor didn’t come up with his own. A．against B．on C．for D．in4．The moonlight is shining in the window. Everything in the room looks so beautiful. A．over B．through C．across D．past5．Jiangsu Development Summit was open _____ May 20th in Nanjing.A．on B．in C．at D．by6．—When is your birthday party?—It's________.A．at six,on May 24th B．on six,this SaturdayC．in six o'clock this afternoon D．on six,at May 24th7．She is talented ________ music but I am good at sports.A．at B．in C．on8．If yo u can’t read the article, it will be meaningless to you. The –less in the word “meaningless” means .A．with B．without C．full of D．out of9．---What’s your hobby ? ---______collecting balls, I also like different kinds of CDs. A．Besides B．Except C．Beside D．About10．My cousin Mary was born ＿＿＿ a singing voice.A．from B．in C．with11．We have four lessons ________ the morning.A．in B．on C．at D．for12．I bought the tomatoes ________ the vegetable stall.A．at B．in C．on D．from13．The river runs_______ the city. And there are many beautiful bridges_______ the river. A．across; through B．through; overC．through; through D．across; over14．—What are these ________ English?—These are egg-cups.A．at B．to C．on D．in15．There is a computer _______ the desk.A．on B．in C．under D．for16．（2017年山东德州）A woman stood ______ the window, watching the children playinggames in the garden.A．past B．through C．across D．by17．It’s very kind ___________ you to lend me your reusable shopping bags.A．of B．for C．to D．with18．If success is a gate, the road this gate must be made up of difficulties.A．towards B．against C．opposite D．beyond 19．After working her way around the world， Annie ended up English as a foreign language. A．teach B．taughtC．teaching D．to teach20．There________ a hamburger and bananas________there.A．is;in B．are;in C．is;/ D．are;/21．—It's wonderful, isn't it?— Yes, The large grassland, reaching out far away, looks very beautiful________the blue and clean sky.A．against B．above C．through D．past22．--Excuse me, Sir. Can you tell me the way to the zoo?--Walk__________the bridge, you'll see the zoo__________your right.A．on; by B．across; at C．across; on D．on; along23．Tom was born________London________May lst, 2001.A．in; in B．in; on C．on; on D．on; in 24．—Where is Hubei?—It’s _______ the north of Hunan.A．in B．to C．on25．—How long have you lived in this town?—________2001.A．since B．in. C．for【参考答案】***试卷处理标记，请不要删除一、选择题1．A解析：A【解析】【分析】【详解】句意：我的老师早上跑步。
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一、选择题1．My best friend is now________China, so I want to go________China, too.A．in；on B．on；to C．of；for D．in；to 2．North Korea is________Asia. It’s________the northeast of China and________the west of Japan.A．in, to, on B．in, on, to C．on, in, to D．to, on, in 3．—What do you think your life will________next year?—My life will be________better than it is now.A．be like; very B．be like; a lot C．be; a lot4．—Mary's birthday is ________ March． What about Lucy's？—Her birthday is ________ December 10th．A．in；on B．on；in C．on；on5．Jiangsu Development Summit was open _____ May 20th in Nanjing.A．on B．in C．at D．by6．She is talented ________ music but I am good at sports.A．at B．in C．on7．—What's the secret good health?—Eating healthy food and taking enough exercise.A．in B．to C．on8．Jenny’s math lesson is________nine________Friday morning.A．in; on B．at; on C．on; in D．at; in 9．Taiwan is _________ the southeast of China.A．to B．in C．from D．on10．The Qingming Festival of this year falls _____ April 5th and thousands of cars poured into high-ways _____ the early morning of the holiday.A．on; in B．in; on C．on; on D．in; in11．If you can’t read the article, it will be meaningless to you. The –less in the word “meaningless” means .A．with B．without C．full of D．out of12．It is reported that he won an award________Best Actor________his role in that film. A．as; in B．as; for C．for;for D．for; in13．－What are they talking ________?－I am not sure. Because they are talking ______English, I don't know English .A．to; with B．to; inC．with; about D．about; in14．Can you jiaozi English?A．say;with B．speak;in C．say;in D．tell;about15．The Dragon Boat Festival fell ________June 18th this year.A．in B．to C．on D．from16．Did you read the news________the newspapers that Yang Jiang passed away (去世)________the morning of May 25th?A．in; in B．on; in C．in; on D．on; on17．My friend, Henry was born June 10th, 1997.A．in B．on C．at D．for18．--Excuse me, Sir. Can you tell me the way to the zoo?--Walk__________the bridge, you'll see the zoo__________your right.A．on; by B．across; at C．across; on D．on; along19．Tom was born________London________May lst, 2001.A．in; in B．in; on C．on; on D．on; in 20．—Hi, Jane. What time do you get up __________ weekdays?—I usually get up __________ about six o’clock.A．in; at B．on; at C．at; at D．on; on 21．—What are these ________ English?—These are egg-cups.A．at B．to C．on D．in22．He has a garden __________ a lot of flowers.A．has B．there is C．with23．Don’t leave the room _____ the light on .A．in B．on C．about D．with24．I want to learn English well because I don’t want to talk with foreigners ________ anybody else.A．by B．through C．across D．at25．I can’t go out ________ school nights because I have to finish my homewo rk first.A．at B．in C．on【参考答案】***试卷处理标记，请不要删除一、选择题1．D解析：D【解析】【分析】【详解】句意：我最好的朋友现在在中国，所以我也想去中国。
考查介词和动词短语。
“在中国”使用介词in，go to sp.：去某个地方。
故选D。
2．B解析：B【解析】【详解】句意：朝鲜在亚洲。
它在中国的东北方，日本的西边。
本题考查介词。
be in表示某地的内部，be on表示两个地方相邻接壤，be to表示两地相邻中间相隔。
第一空表示朝鲜在亚洲的内部，用介词in。
第二空表示朝鲜与中国接壤，用介词on。
第三空表示朝鲜与日本相邻，中间隔着海，因此用介词to。
故选B。
3．B解析：B【解析】【详解】句意：——你认为你明年的生活将会怎么样？——我的生活将会比现在更好。
考查介词用法和形容词比较级修饰词。
do you think为插入语，What…be like中like为介词，what作like的宾语，表示“明年的生活会怎么样”，排除C；第二个空修饰形容词比较级better，very修饰形容词原级，a lot可以修饰比较级。
故选B。
4．A解析：A【解析】【分析】【详解】句意：--Mary的生日在三月，Lucy的呢?—他的生日在10月10日。
考察时间介词。
在月份前用介词in, 在具体日期前用介词on, 故选A。
【点睛】时间介词用法口诀：周月季年长时间in需放在其前面；at用于时刻前，也与正午午夜连；on用于具体某一天。
5．A解析：A【解析】句意：江苏发展峰会于5月20日在南京开幕。
考查介词辨析题。
表示时间的某一点、某一时刻或年龄等用 at；泛指一般意义的上午、下午或晚上以及月或年等较长的时间，一般用 in；若表示星期几或某一特定的日期，则用 on；表示“到……时为止”或“不迟于……”用by。
本句May 20th是特定日期，需用on。
根据句意语境，可知选A。
点睛：时间介词是英语中的经典考题。
表示时间的介词很多：一、at, on, in (A) at表示“在某一时刻，某一时点”；(B) on表示“在具体某一天或某天的上、下午”；(C) in表示“在某世纪、年、季度、月、周”以及泛指的上、下午、晚上。
二、for, during, through (A) for后接“一段时间”，表示某事持续多久，后接时间段，多与完成时连用；(B) during表示“在……期间”；(C) through表示“一直……，自始至终”。
三、from, since (A) from表示“时间的起点”，可译作“从……”，多用于“from…to/till…”中；(B) since表示“自从……以来（直到现在）”，后接时间点。
四、before, by, till, until (A) before指“在……之前”，与after相对；(B) by指“不迟于，到……时为止，在……以前”；(C) till (until) “直到……为止”。
五、after, in, within(A) after 表示“在……之后”，是before的反义词；(B) within“在……时间之内”。
6．B解析：B【解析】【分析】【详解】句意：她有音乐天赋，但我擅长体育。
考查介词，A. at prep. 在（表示存在或出现的地点、场所、位置、空间），以（某种价格、速度等）；B. in prep. 在……里，在……以后，在……状态中，从事…..；C. on prep. 在……上，以……为目标，向，朝……，在……时候。
根据所学短语“be talented in在……有天赋”，故选B。
7．B解析：B【解析】【分析】【详解】句意：——保持身体健康的秘诀是什么？——吃健康的食物和多做锻炼。
考查介词。
in 接某年某月某季节；to向，朝着；on 接具体某一天。
根据句意，空格处表示"身体健康的秘诀"，固定搭配the secret to ……的秘诀，所以空格处用介词to。
故选B。
8．B解析：B【解析】【分析】【详解】句意：詹妮的数学是在周五早晨9点。