Unit 7 A Day to Remember Section A-【学海风暴】2025-2026学年七年级下册英语同步备课（人教版·新教材）

Unit 7 A Day to Remember Section A 知识要点梳理 第1课时 Section A(la-Pronunciation) step作名词，意为“步；步骤”。 1.took the wrong bus坐错公共汽车 The next step can be started now.,现在，下 (I)take作动词，意为“乘坐”。“take a/he十 步骤可以开始了。 交通工具”表示“乘坐某种交通工具”。 与step相关的短语： take the bus/train/subway/car/boat/plane (step by step一步一步地 乘坐公共汽车/火车/地铁/轿车/船/飞机 take a step/.steps采取措施 John usually takes the school bus to school. We should help the children form some good 约翰通常乘坐校车去上学。 habits step by step.我们应该帮助孩子们逐步养成 (2)wrong作形容词，意为“错误的；不对的”， 些好的习惯。 反义词为right。 We must take steps to protect the environment..我们必须采取措施来保护环境。 I think your answer may be wrong.我认为你 2.I used to think it was easy to get clean 的答案可能错了。 water,我过去认为获取干净的水很容易。 【拓展】“What's wrong?”意为“怎么了？”，用 来询问对方身体哪里不舒服、有什么问题或有什么 used to do sth意为“过去常常做某事”，to是 不顺心的事。“What's wrong with sb/sth?”意为 不定式符号，后跟动词原形，表示过去的习惯动作 “某人/某物怎么了？”。 或状态，现在已不存在。 There used to be a cinema here.这里曾经有 一What's wrong,Jim?吉姆，怎么了？ 个电影院。 一I left my umbrella on the bus.我把雨伞落 3.I didn't realize it was so hard.我以前设有 在公共汽车上了。 意识到是这么困难。 What's wrong with your teeth?你的牙齿怎 realize作动词，意为“理解；领会；认识到；意识 么了？ 到”，不可用于进行时态，其后可接名词、代词或从 2.gave directions指路 句作宾语。 direction作名词，意为“方向”，该词常用复数 They didn't realize the danger they were in. 形式，可与介词to及动词（短语）ask for,give等进 他们没有意识到自己身处危险之中。 行搭配。 The moment I saw her,I realized something A woman gave me directions to the police was wrong.我一看到她，就觉得不太对劲。 station.一位女士给我指了去警察局的路。 【拓展】realize还可意为“实现；将…变为现 【拓展】与direction相关的短语： 实”，常与dream连用，表示“实现梦想”。 (in the direction of向着…方向 Finally she realized her dream of becoming an in all directions向四面八方；全面地；向各方面 artist.最后她实现了当美术家的愿望。 They headed in the direction of the village. 4.Last week,Fu Xing's class went on a school 们朝村庄的方向前进。 trip to a wastewater plant.上周，付星和同学们去 Scared by the loud noise,the rabbits ran off 一个废水处理厂进行了一次学校旅行。 in all directions.由于被巨响吓着了，兔子们向四 go on a trip(=have a trip)去旅行 面八方跑去。 go on a trip to…到…去旅行 第2课时Section A(2a-3d) Would you like to go on a trip with me? 1.It takes a few more steps after that before 想和我一起去旅行吗？ the water becomes clean again.之后还要再经过几 He went on a trip to Shanghai last year. 个步骤，水才会再次变干净。 年，他去上海旅行了。 下册Unit7 121 5.Fu Xing learnt about the cleaning process The bus often comes to a stop here.公共汽车 星了解了清洁的过程 常在此处停下来。 (1)learn about意为“了解；知道；获悉”，相当 8.We walked along the mountain roads and 于know about。 thought about the past..我们沿着山路走，回想着 How did you learn/know about the meeting? 过去。 你是怎么了解这个会议的？ along作介词，意为“沿着”。相当于down,可 【拓展】learn…about…意为“学习/知道/了解 以和go,walk等动词连用。 关于…”。 go along(the street)沿着（这条街）走 I'd like to learn something about Mr Green. Go along the street,and you'll find the post 我想了解关于格林先生的事情。 office.沿着这条街走，你就会找到邮局。 I'd like to learn more about computers.我想 I want to walk along the Silk Road some 学习更多关于电脑的知识。 day.将来某一天我想沿着丝绸之路走一走。 (2)process作名词，意为“过程”。 【拓展】along作副词，意为“向前；一同”。与 Growing up is not just a happy process.成长 动词连用时，与on同义，表示“向前移动”。 不仅仅是一个快乐的过程。 Come along,Ling Feng.凌峰，来吧 【拓展】process作动词，意为“加工；处理”。 9.Many people back then worked hard to The shop processes silver.这家作坊加工银器。 create what we have today.当时许多人努力工作， 6.my favourite actor我最喜欢的演员 创造了我们现在所拥有的一切。 actor作名词，意为“（男）演员”，由“动词act十 (I)back then意为“那时；当时”。 后缀-or”构成。 Things were very different back then.以前那 Do you want to be an actor?你想成为一名演 个时候情况大不相同。 员吗？ (2)【辨析】create,discover与invent 【拓展】(1)动词加后缀-or通常构成名词，表示 指创造出原来并不存在的东西， 动作的执行者，比如visitor“参观者”，collector“收 其对象往往是精神上的，如艺 藏家”，inventor'“发明家”等；动词加后缀-er也可构 创造； create 创建 术、文学作品中的人物、新的科 成名词，同样表示动作的执行者，比如worker“工 学领域等，也可指创造出新的具 人”，teacher“教师”，leader“领导者”等。 体事物 (2)actress作可数名词，意为“女演员”，由“动 某种自然界本来已存在，但以前 词act十后缀-ress(表示女性)”构成。 未被人类发现或认识的事物，如 7.stop停止 discover 发现 元素、电、煤、石油、铁等以及新 stop作动词，意为“停止”。常见用法如下： 星、星系等 stop to do sth停下来去做某事 指创造出原来自然界不存在的 stop stop doing sth停止做某事 东西，其对象往往是物质性的， 发明； I stopped to help him.我停下来去帮助他。 invent 尤指科技上的发明创造，如工 创造 Stop talking,please..请停止说话。 具、方法、灯泡、汽车、电视、合成 【拓展】stop还可作名词，有以下用法： 材料等 (1)车站 Shakespeare created many famous characters. stop一般指路边的供乘客上下车的停车点， 士比亚创造了许多著名的角色。 而station一般指规模较大的车辆始发站或终 You can create a file..你可以创建一个文 点站。 件夹。 at the bus stop在公共汽车站 Recently he discovered gold coins in that The bus stop is not far from my school..公共 area.最近他在那个地区发现了金币。 汽车站离我的学校不远。 He is doing experiments to invent something (2)停止 new.他正在做实验来发明新东西。 22 七年级英语RJ版 第1课时 Section A(1a-Pronunciation) 课内基础达标 She always looks forward to 一、根据句意及首字母提示完成句子 her friends. 1.I went to an art e last weekend. 四、单项填空 2.We visited the science m 1.We visited the yesterday yesterday and saw and learned a lot about science. lots of old things there. 3.We decided to m up at 9 a.m.in the A.school B.library C.park D.museum shopping centre. 2.She drove off in the of the airport 4.The long car t made me sleepy. (机场). 5.We were really proud that we c all A.end B.centre the delicious dishes by ourselves. C.direction D.hope 二、用方框中所给词的适当形式填空 3.-How was your last weekend? -It was great.I my grandparents in robot tour astronaut wrong direction the countryside. 1.An old man gave me to the A.visit B.will visit subway station. C.am visiting D.visited 2.The two are serving dishes.Let's 4.-Is this movie go there to have lunch. -No.It talks about the history of human 3.We saw a group of taking beings(人类)，but I am not in that. pictures by the lake. A.interesting;interested 4.I want to be a great when I B.interesting;interesting grow up. C.interested;interesting 5.Your answer is Let me help you D.interested;interested to work it out. 5.She spent the whole day at the art 三、根据汉语意思完成句子 enjoying the wonderful paintings. 1.新素材Chatbot)我们能和聊天机器人聊 A.problem B.exhibition 天吗？ C.progress D.member Can we Chatbot? 1-5 2.去历史博物馆的路上，我丢了我的书。 I lost my book 课外拓展提高 the history museum. 一、完形填空 3.彼得想告诉我们关于他学校的事情。 生话与学习一日本旅行 Peter wants to us his Tony went to Japan with some of his school. classmates last month.He wrote about the 4.她总是期待着与朋友们见面。 trip in his I.Let's read it. 下册Unit7 123 The trip to Japan was 2.We stayed 13.A.full B.untidy C.few D.dry there for ten days. 14.A.What B.How C.Where D.When When we 3 at the airport,it was very 15.A.toward B.inside hot and wet.I didn't like the 4.We 5 C.again D.away Yokohama Boys High School.It was a little 1-5 6-10 far()from the airport,6 we went there 11-15 by bus.The school and its students gave us a 7 welcome.The students there 8 二、补全对话 helpful and friendly. (2025景德镇期末) Our host families(寄宿家庭)were also Dave and Emily are talking about their helpful and 9.They cooked us 10 ,and weekend.D=Dave,E=Emily) took us out for dinner too.11 also took us D:Hello,Emily!How was your weekend? to clothes stores.And they took us to piano E:It wasn't good. concerts(音乐会).The concerts were 12 D:1 great. E:I stayed at home because it was rainy. In Japan,many people take the bus.The D:2 buses are always 13 Some people take the E:I did some reading the whole day.How train.14 I took a train,I found something about you?Where did you go? different from the train in New Zealand:the D:3 seats in the train were facing(朝向)l5! E:Did you go to the beach? 1.A.diary B.book C.group D.plant D:Yes,we did. 2.A.hard B.great C.bright D.cold E:That sounds good.Did you go swimming in 3.A.looked B.jumped C.wasted D.arrived the sea? 4.A.food B.museum D:Yes,I did.4 C.weather D.theater E:You had a good time,right? 5.A.talked B.visited C.filled D.hoped D:Yes,I did.5 6.A.if B.so A.I really had fun. C.because D.although B.When did you go? 7.A.warm B.sleepy C.stormy D.magical C.Where did you go? 8.A.are B.am C.were D.be D.What did you do then? 9.A.colourful B.playful E.What was the weather like there? C.friendly D.awful F.You know I like swimming very much. 10.A.meals B.rocks C.gloves D.results G.I went to a summer camp with my 11.A.Them B.They C.Their D.Theirs classmates. 12.A.slowly B.brightly C.quickly D.really 24 七年级英语RJ版 第2课时 Section A(2a-3d) 已课内基础达标 4.It is really cool to your dream 一、根据句意及首字母提示完成句子 through great effort(努力). 1.Although the young man r A.make B.realize C.bring D.create his 5.I mistake,it was still too late. afraid of dogs.But now I like them 2.Take one s at a time and you'll reach very much. A.am used to B.used to your goal. 3.I thought I did badly in the test.However, C.used to be D.use to be the result was not as t as 1-5 expected. 已课外拓展提高 4.Work hard and you can c a bright 一、短文填空 future. 历史、社会与文化一中式建筑的魅力 二、用方框中所给词的适当形式填空 bring with interested all hopes but road factory theatre actor piece easily fifth month idea learn 1.Tony's father is one of my favourite John Flower is a history teacher at a I like his films. school in Virginia,the USA.He is 1 in 2.This was wet after the rain.You Chinese houses.Every year,he takes a trip to needed to ride your bike slowly. villages in Yunnan 2 some of his 3.江西人文赣剧We went to a to students.They go around the villages and visit watch Gan Opera yesterday. many old houses3 about local(当地的) 4.She cuts the paper into culture.In 2017,when Flower arrived in 5.The produces(生产)lots of Yunnan for the 4 time,he saw an old toys every day. house in a village called Cizhong.He liked it 三、单项填空 very much."I can't take 5 my students to 1.We need to put all the books the China to see the house,”Flower said..“6I box,and then send it to the school. think I can take the house to my students."So A.at B.on C.into D.out of he decided to buy the house.Then he 7 it 2.Don't too much time on playing back home.Many people think it's a funny games.It's not good for your health 8.No one can move a house from one A.improve B.waste place to another 9.But Flower made it.It C.experience D.take took 10 to take the wood of the house to 3.I often take my dog for a walk the the USA. street after dinner. This makes more students in the USA get A.along B.below C.over D.under to know about Chinese culture.Melinda 下册Unit7 125个 Daniels,one of Flower's students,11 to photos. visit China one day after seeing the house. If you are interested in temples(寺庙) 1. 2. 3. and street art,you can't miss Ipoh.Lots of 4. 5. 6. Chinese people live and work there.You may 7. 8. 9. feel great when visiting it. 10. 11. Do you want to know more about 二、阅读理解 Malaysia?Let the Internet help you! 1.How many cities does the passage mention 历史、社会与文化一马来西亚的城市 (提及)？ I took a trip to Malaysia during my A.Two. B.Three.C.Four.D.Five. summer vacation.Malaysia is a great country. 2.What does the underlined word“both”mean It is to the south of China.There are many big in Paragraph 2? cities with a lot of things to see there. A.The first. B.The two. Kuala Lumpur is the capital(首都)and C.The second. D.All of them. largest city of Malaysia.The symbol of 3.新考向篇章结构What would be the best Malaysia,the Petronas Twin Towers(双子 塔)，are standing in the city center..The two structure of the passage? A. ①②③④B D.①③ towers are over 450 meters tall.As the tallest ②④ twin buildings in the world,they are the pride 55 ②③④⑤ ⑤ (g骄傲)of the country.People say that there 4.新考向写作意图 What's the writer's purpose are about 32,000 windows in both towers and (目的)of writing the passage? it takes 2 months to clean them all! A.To ask more people to visit Malaysia. George Town is also a great city to visit in B.To show it's interesting to take a trip. Malaysia.People name it after King George II C.To take a trip to Malaysia with friends. of Britain.Every year,a lot of visitors go to D.To make people know more about Malaysia. visit it because they can enjoy many beautiful old buildings there.There are new buildings too,of course. People can relax and take 写阻乎瓯笔 用所学内容向同学介绍你的学校旅行。（词数：40左右） 内容提示：the time,the place,the activities,your feelings 1126 七年级英语RJ版 阶段听力训练1 一、请听5段对话，根据对话内容选出最佳选项。每段对话读两遍。 1.How was Frank's trip? A.It was great. B.It was terrible. C.It was bad. 2.What did Tony do last Sunday? A.He met up with friends.B.He visited the zoo. C.He visited the museum. 3.Who did Li Lei do homework with? A.His friend. B.His classmate. C.His brother. 4.Where did Annie go in Beijing? A.To the science museum.B.To the history museum. C.To the theatre. 5.What does Jane mean? A.She was relaxed last weekend. B.She was very busy last weekend. C.She was very happy last weekend. 二、请听3段对话，根据对话内容选出最佳选项。每段对话读两遍。 请听第1段对话，回答第6、7小题。 6.How was Eric's trip? A.Great. B.Not good. C.Just so-so. 7.What did Eric do there? A.He went fishing B.He picked some strawberries. C.He fed the chickens. 请听第2段对话，回答第8、9小题。 8.Where did Gina go on vacation? A.She went to the mountains.B.She went to the farm. C.She stayed at home. 9.How was the weather when John was on vacation? A.Rainy and windy. B.Cold and windy. C.Sunny and warm. 请听第3段对话，回答第10至第12小题。 10.Who did Kate go to Xi'an with? A.Her father. B.Her mother. C.Her brother. 11.How long did Kate stay there? A.For two years. B.For two months. C.For two weeks. 12.Which of the following is true? A.Kate went to the science museum. B.Kate saw many new things there. C.Kate had a good time there. 1-5 6-10 11-12 下册Unit7 127 Grammar 单元语法 突破 一般过去时（一】 表示过去某个时间或某一段时间内发生的动作或存在的状态 定义 two days ago,last night,yesterday... 表示过去的时间状语 肯定句：主语+实义动词过去式b®动词过去式+其他， 否定句：主语+didn't+动词原形+其他.；主语+wasn't/weren't+其他 般过去时 基本句式 般疑问句：Did+主语+动词原形+其他？回答：Yes,主语+did./No,主语+didn't.; Was/Were+主语+其他？回答：Yes,主语+was/were.;No,主语+wasn'/weren't. 特殊疑问句：特殊疑问词+did/was/were+其他？ 般的动词，加-ed:play一played;clean-一cleaned 以字母e结尾的动词，加-d:move一noved 规则变化 以辅音字母加y结尾的动词，改y为i,再加-ed:cary一carried 以重读闭音节结尾的动词，且词尾只有一个辅音字母，双写该辅 动词变化 音字母，再加-ed:stop一stopped am/is-was;are-were;let-let;lose-lost;make-made; 不规则变化 pay-paid;put-put;read-read;ride-rode 语法知识 集训 一、用所给词的适当形式填空 A.enjoyed B.created 1.Tom (visit)his uncle in Jinan C.bought D.heard last month. 2.(2025上饶期末)Mr Brown me math 2.She usually newspapers in the when I was in Grade 3. morning,but she a book A.teach B.teaches yesterday.(read) C.taught D.is teaching 3.Last weekend,Jim study 3.We the books to the library after we computer science in the school club. read them. 4.There (be)a lot of rain outside last A.returned B.pointed C.visited night. D.caught 5.My father (make)a kite for me a 4.I met Jenny last Sunday.She a lot. She is thin,tall and hard-working now. week ago. A.did B.changed 二、单项填空 C.learned D.practised 1.(2025江西)Mozart many pieces of beautiful music.That's why he is 1-4 famous. 28 七年级英语RJ版高频考点训练 考点一 1-3 BCC 考点二 1-3 ABC 考点三 1.A 2.because of 3.because 考点四 1.at the end of 2.in the end 3.by the end of 4.at the end of 5.to the end 考点五 1.luck 2.Luckily 3.lucky 阶段听力训练2 -、1-5 BBCCC 二、6-10 AABCA 三、11.strong12.snows13.dry14.swimming 15.grey 单元培优训练 一、1.so2.homework3.what4.white 5.building 6.lives 7.also 8.good 9.large 10.favorite 11.friends 二、1-5 AEBCD Unit 7 第1课时 Section A(1a-Pronunciation) 课内基础达标 一、1.exhibition 2.museum 3.meet 4.trip 5.cooked 二、1.directions 2.robots 3.tourists 4.astronaut 5.wrong 三、1.talk to/with2.onmy/the way to 3.tell;about 4.meeting up with 四、1-5 DCDAB 课外拓展提高 1.A【解析】根据“HHe wrote about the trip in his”可 知Tony写的是旅行，通常用日记记录。 2.B【解析】根据下文“helpful and friendly”以及 “The concerts were…great”可知，Tony对这次旅 行的感受是不错的，用great:最合适。 3.D【解析】根据“the airport”可知到达机场用 arrived。 4.C【解析】根据“it was very hot and wet'”可知 Tony提到天气热且潮湿，他不喜欢这种天气。 5.B【解析】根据下文可知Tony他们去参观了学校 6.B【解析】根据“It was a little far”可知这里表示因 果关系，前面提到学校离机场远，故用s0。 7.A【解析】warm welcome意为“热烈欢迎”。 414 七年级英语RJ版 8.C【解析】根据文章可知Toy在回忆过去的事情， 所以用过去式were。 9.C【解析】根据语境可知，寄宿家庭也很友好。 10.A【解析】根据“They cooked us'”可知寄宿家庭 为他们做饭，故用meals。. 11.B【解析】根据上文可知这里指代寄宿家庭也带 他们去服装店。 12.D【解析】根据文章大意可知Tony对音乐会的 评价是积极的，故用really修饰great。 13.A【解析】根据“In Japan,many people take the bus”可知，用full表示很多人。 14.D【解析】根据“I found something different from”可知这里是用when引导时间状语从句，表 示“当我乘坐火车时”。 15.B【解析】根据“I found something different from the train in New Zealand”可知此处是描述火车座 位朝向，大部分的座位都可以朝外看到外面的风 景，而这里的是不同的，所以是朝内的。 二、1-5 CDGFA 第2课时Section A(2a-3d) 课内基础达标 -,1.realized 2.step 3.terrible 4.create 二、1.actors2.road3.theatre4.pieces 5.factory 三、1-5 CBABC ®课外拓展提高 -1.interested 2.with 3.to learn 4.fifth 5.all 6.But 7.brought 8.idea 9.easily 10.months 11.hopes 1.B【解析】通读第二至第四段可知，本文主要介绍 了Kuala Lumpur,George Town和Ipoh三个 城市。 2.B【解析】根据“Petronas Twin Towers'”可知， both指的是“两个”。 3.C【解析】通读全文可知，本文采用总一分一总形 式介绍马来西亚的几个著名的城市。第一段引出 马来西亚有几个值得游览的城市；第二至第四段介 绍了马来西亚的三个著名城市；第五段总结全文。 4.D【解析】通读全文可知，本文通过作者假期去马 来西亚旅行的经历介绍了几个马来西亚值得去的 城市，目的是让人更加了解马来西亚。 )写作小练笔 Last week,I went on a school trip to an art museum.I saw many wonderful paintings and many robots of different colors.I bought some lovely gifts for my family.I learned a lot and had a great time. 阶段听力训练1 -、1-5 ABAAB 二、6-10 ABABC11-12CC Grammar ②语法知识集训 -1.visited 2.reads;read 3.studied 4.was 5.made 二、1-4BCAB 第3课时Section B(1a-ld) 课内基础达标 一、1.finally2.leaves3.taught4.fill 5.recording 二、1-5 CACDD 少课外拓展提高 1.B【解析】根据下文“and then took a taxi to our hotel'”可知，他们应是先到达伦敦，再搭出租车去 酒店。 2.A【解析】根据下文“We walked across the river” 可知，他们决定住在这家酒店。 3.C【解析】根据上文“We spent four days with our daughter in London'”可知，他们去伦敦旅行。 4.D【解析】根据语境可知，要穿过河流，需要从桥 上过。 5.A【解析】根据上文“We walked across the river” 可知，空处应指“我们”。 6.D【解析】根据上文“enjoy the beautiful paintings there”可知，作者女儿最喜欢的学科是美术。 7.B【解析】根据上文“…is our daughter's favourite subject'”可知，她看到画作一定很高兴。 8.C【解析】根据语境可知，伦敦眼对于每个游客来 说是必看景点。 9.A【解析】根据上文“We went on a weekday”可 知，在工作日去，人会少一点，前后句之间是因果关 系，前因后果。故用s0。 10.C【解析】根据下文“But I thought it was worth the money”可知，此处指昂贵的。dear意为“昂贵的”。 11.A【解析】根据语境可知，这是旅行的第三天，是 新的一天。 12.B【解析】根据上文“It was my husband's must- see”可知，作者的丈夫是莎士比亚的粉丝。 13.D【解析】根据下文“It was time to go home”可 知，大英博物馆是最后一站。 14.C【解析】根据上文“It was time to go home'”可 知，作者收拾东西。 15.C【解析】根据下文“next London trip”可知，空 处应指计划下一个伦敦之旅。 1.D【解析】根据第一段“The children at Swooptown School for Superheroes were super excited about their trip to the museum”可知，一开 始孩子们对去博物馆感到非常兴奋。 2.B【解析】根据画线部分后面的“And he didn't like to join the trip anymore”可知，他不再想去参观博 物馆了，由此猜测出画线部分的意思是“厌烦的”。 3.C【解析】通读全文可知，本文主要介绍了老师给 去博物馆参观的孩子们提出了一些要遵守的规则。 第4课时Section B(2a-3c) ②课内基础达标 -1.diaries 2.explored 3.amazing 4.cucumbers 5.certainly 二、1.remove2.germs3.branches 4.entry 5.basket 三、1.at first2.on holiday3.in the mountains 4.across the sky 四、1-5 CBADD ®课外拓展提高 -1.trip 2.about 3.direction 4.bring 5.building 6.When 7.Again 8.amazing 9.another 10.dream 11.lived 二、1-5 ECGDF 大单元知识整合 1.go on a school trip to a farm/an art museum,be on holiday in the mountains 2.explore the farm,pick some strawberries,cut branches and leaves from tomato plants,water the plants 3.tiring but great fun,be interested,seem easy,a day to remember 4.Farming isn't easy./Every grain comes from hard work. 主题作文指导 巴写作练兵 May 1st We went to Beijing yesterday.It was sunny and hot all day. In the morning,we went to the Palace Museum. We saw a lot of old things there.But I thought it was kind of boring.After that,we had lunch at a dumpling house near the Palace Museum.The dumplings there were really delicious.I ate quite a lot.In the afternoon,we visited Tian'anmen Square. We took a lot of photos there.At about 4:00 p.m., we walked back to the hotel. I was very tired but happy.I hope to go there again. 熟词生义 1.(1)A(2)C(3)B 2.(1)A(2)B (3)C 3.(1)C (2)B(3)A(4)D 4.(1)B (2)A 5.(1)C(2)A(3)B 下册参考答案 15△