Unit 7 A Good Read 单元语法（现在完成时）-2025-2026学年八年级英语下册单元语法精讲精练（人教版）

Unit 7 A Good Read 现在完成时(1) （时间：40分钟，满分：100分） 一、单项选择(本大题共30小题，每小题2分，共60分) 1．— Have you ________ the problem yet? — No, I need more time. A．solve B．solved C．solving 2．They ________ in this city for 10 years. They like living here. A．have lived B．lived C．will live 3．—Has anybody ________ been to Mars? —No, not ________. Maybe in the future. A．already; yet B．ever; yet C．yet; ever 4．— Have you ________been to Nanjing? —Yes, I have________been there for several times. A．ever; already B．ever; never C．ever; just 5．He ________ a lot since he was a little boy. A．changed B．has changed C．changes 6．—How long have you ________ in this school? —For three years. A．study B．studied C．studying 7．It’s hard to believe that the small village ________ into a beautiful tourist spot in the past ten years. A．turned B．is turning C．has turned D．will turn 8．She ________ to Guilin three times, so she knows it very well. A．has gone B．has been C．went D．goes 9．I ________ Mr. Smith since last May. What happened? A．saw B．will see C．haven’t seen D．didn’t see 10．They have been friends _________ they were in kindergarten. A．for B．since C．already 11．I have lived here _________ 2010. A．for B．since C．already 12．How long _________ your father worked as a doctor? A．has B．have C．did 13．I _________ that movie. A．seen B．has already seen C．have already seen 14．She ________ her room yet, so it’s very messy. A．hasn’t cleaned B．didn’t clean C．won’t clean 15．I ______ just ______ my homework, so I can go out now. A．have; finished B．did; finish C．will; finish 16．—What’s wrong, Tommy? Why are you crying? —Mummy, Jeremy________ my cookies. There’s none left. A．eats up B．eating up C．was eating up D．has eaten up 17．Many wild animals ________ their habitats because of deforestation in recent years. A．lose B．lost C．have lost D．will lose 18．The city ________ a lot over the past few years, with more modern buildings. A．changes B．changed C．has changed 19．She ________ her travel diary yet, so she is still writing it. A．hasn’t finished B．didn’t finish C．won’t finish 20．—Do you know the writer of this book? —Yes. He ________ a lot of works about nature so far. A．creates B．created C．has created D．will create 21．My uncle ________ as a doctor for 20 years. He is very experienced. A．works B．worked C．has worked D．will work 22．________ you ever ________ to the new museum? A．Do; go B．Did; go C．Have; been D．Will; go 23．— Have you ________ signed up for the volunteer program? — Yes, I did it yesterday. A．yet B．already C．never D．ever 24．She ______ the project yet. A．didn’t complete B．haven’t completed C．hasn’t completed 25．—How is your report? —I ________ half of it already. And I will finish the rest this afternoon. A．am doing B．was doing C．will do D．have done 26．—What’s your favorite book, Carrie? —Tom Sawyer. It’s one of the best books that I ________. A．read B．was reading C．will read D．have read 27．—It seems you remember everything in the book Harry Potter. —That’s because I ________ it many times. A．read B．have read C．will read D．was reading 28．—Excuse me, may I use your dictionary? I ________ mine behind. —Sure. Here you are. A．leave B．have left C．will leave D．have leaved 29．—Since 2008, Zhang Guimei ________ many girl students walk out of the mountains to achieve their dreams. —What a great teacher she is! A．helped B．has helped C．was helping D．helps 30．Eric ______ many things since he became interested in science. A．is learning B．would learn C．will learn D．has learned 二、单词拼写(本大题共20小题，每小题2分，共40分) 31．She (learn) about the four great inventions of China since she was in primary school. 32．Great inventions (change) human life greatly since the Industrial Revolution. 33．My sister (not pay) her credit card bill yet, and she may face extra charges. 34．The police (warn) people not to go out because of the coming storm so far. 35．He (practice) oil painting for ten years and his skills are perfect now. 36．They (visit) the art museum twice since they moved to this city. 37．The city (change) a lot since it became a special economic zone. 38．Mr Chen (make) dough figurines since he was young. 39．We (learn) English for 6 years. We can speak it well now. 40．They (face) many challenges since they started their business. 41．He (grow) taller and stronger since he joined the sports team. 42．I (read) this book twice. 43．Uncle Wang (live) in Nanjing since three years ago. 44．We (know) each other since we were children. 45．I have (make) great progress in math with the teacher’s help. 46．They (raise) more than 10,000 yuan for the poor children so far. 47．He (feel) stressed recently because of the coming exam. 48．—Have you ever (help) someone with a nosebleed? —Yes, I helped my little sister last month. 49．The air quality in our city (improve) greatly in recent years. 50．Sun Li has (win) many awards for being a role model in the film industry. 试卷第1页，共3页 试卷第1页，共3页 学科网（北京）股份有限公司 $ Unit 7 A Good Read 现在完成时(1) （时间：40分钟，满分：100分） 一、单项选择(本大题共30小题，每小题2分，共60分) 1．— Have you ________ the problem yet? — No, I need more time. A．solve B．solved C．solving 【答案】B 【详解】句意：——你已经解决这个问题了吗？——还没有，我需要更多时间。 考查现在完成时。问句以“Have you”开头，是现在完成时的疑问句结构，空格处需用过去分词构成“have+过去分词”。故选B。 2．They ________ in this city for 10 years. They like living here. A．have lived B．lived C．will live 【答案】A 【详解】句意：他们在这个城市已经住了10年。他们喜欢住在这里。 考查现在完成时。根据“for 10 years”和“They like living here”可知，现在仍住在这里，强调从过去持续到现在的动作，应用现在完成时。故选A。 3．—Has anybody ________ been to Mars? —No, not ________. Maybe in the future. A．already; yet B．ever; yet C．yet; ever 【答案】B 【详解】句意：——是否有人曾经去过火星？——不，还没有。或许在未来。 考查现在完成时中的时间状语辨析。already已经，多用于肯定句中；ever曾经；常用于疑问句中；yet还、尚未，常用于否定句中。根据“Has anybody...been to Mars?”可知，这是现在完成时的一般疑问句，且用于询问经历，在现在完成时的疑问句中，询问经历时常用ever表示“曾经”；根据“No, not...”可知，这是否定回答，表示“不，还没有”，强调“尚未”完成或发生，应使用yet。故选B。 4．— Have you ________been to Nanjing? —Yes, I have________been there for several times. A．ever; already B．ever; never C．ever; just 【答案】A 【详解】——你去过南京吗？——是的，我已经去过好几次了。 考查副词辨析。ever曾经(用于否定句和疑问句)；already已经；never从不；just刚才，正好。根据句意可知，句子是现在完成时；根据“Have you ____been to Nanjing?”可知句子是一般疑问句，所以用ever；根据回答“Yes, I have_____been there for several times. ”可知句子是肯定句，结合句意可知，此句是表达“我已经去过好几次了”，所以用already。故选A。 5．He ________ a lot since he was a little boy. A．changed B．has changed C．changes 【答案】B 【详解】句意：他从小时候起就已经改变了很多。 考查现在完成时。根据“since he was a little boy”可知，表示“自从他是个小男孩以来”，强调从过去某一时间点持续到现在的动作或状态，常与现在完成时连用。故选B。 6．—How long have you ________ in this school? —For three years. A．study B．studied C．studying 【答案】B 【详解】句意：——你在这所学校学习多久了？——三年了。 考查现在完成时。根据“have”以及“For three years.”可知，时态为现在完成时，其构成为have/has done，此处用过去分词studied。故选B。 7．It’s hard to believe that the small village ________ into a beautiful tourist spot in the past ten years. A．turned B．is turning C．has turned D．will turn 【答案】C 【详解】句意：很难相信这个小村庄在过去的十年里已变成一个美丽的旅游景点。 考查动词时态。turned一般过去时；is turning现在进行时；has turned现在完成时；will turn一般将来时。in the past ten years在此处表示“在过去的十年里”，强调从过去到现在已经完成的变化，所以句子时态为现在完成时。故选C。 8．She ________ to Guilin three times, so she knows it very well. A．has gone B．has been C．went D．goes 【答案】B 【详解】句意：她去过桂林三次，所以她对那里非常了解。 考查现在完成时的用法。has gone (to)去了，未归；has been (to)去过，已回；went去，动词过去式；goes去，动词的第三人称单数形式。根据“three times”可知强调过去的经历对现在的影响，且“so she knows it very well”说明她现在很了解桂林，因此应选用表示“去过且已返回”的has been to。故选B。 9．I ________ Mr. Smith since last May. What happened? A．saw B．will see C．haven’t seen D．didn’t see 【答案】C 【详解】句意：自从去年五月以来，我就没有见过史密斯先生。发生什么事了？ 考查现在完成时。saw看见，过去式；will see将看见，一般将来时；haven’t seen没有看见，现在完成时；didn’t see没有看见，一般过去时。根据时间状语“since last May”可知，句子表示从过去某一时间持续到现在的动作或状态，应使用现在完成时，且根据后句“What happened?”推测，此处强调“一直没见到”的结果。故选C。 10．They have been friends _________ they were in kindergarten. A．for B．since C．already 【答案】B 【详解】句意：自从他们在幼儿园起，他们就已经是朋友了。 考查词汇辨析。for后接一段时间，表示动作持续了多久；since自从，引导时间状语从句，表示从某个时间点开始一直持续到现在；already已经，通常用于现在完成时中，但一般不用于引导句子。根据语境以及句子结构“They have been friends”可知，此处是在描述从他们在幼儿园的时候开始，他们就已经是朋友了，并且这种状态一直持续到现在，所以应该用since来引导时间状语从句。故选B。 11．I have lived here _________ 2010. A．for B．since C．already 【答案】B 【详解】句意：自从2010年以来，我就住在这里。 考查词汇辨析。for后接一段时间，表示动作持续了多久；since后接时间点，表示从某个时间点开始一直持续到现在；already已经，通常用于现在完成时的肯定句中。根据语境及句子结构可知，此处是在描述从2010年开始一直到现在都住在这里，是一个持续到现在的动作，且2010是一个时间点，所以应该用since。故选B。 12．How long _________ your father worked as a doctor? A．has B．have C．did 【答案】A 【详解】句意：你父亲当医生多久了？ 考查现在完成时。has助动词，用于现在完成时主语为第三人称单数；have助动词，用于现在完成时主语为第一，二人称或复数；did助动词，用于一般过去时的疑问句或否定句。根据“worked as a doctor”可知，句子询问的是持续的职业状态，应使用现在完成时，主语“your father”为第三人称单数，助动词需用“has”。故选A。 13．I _________ that movie. A．seen B．has already seen C．have already seen 【答案】C 【详解】句意：我已经看过那部电影了。 考查动词时态。根据句子结构和选项可知，此句时态为现在完成时，其结构为“have/has+动词的过去分词”，主语“I”为第一人称，助动词用have，“see”的过去分词为seen，“already”表示“已经”，常用于现在完成时的肯定句中，置于助动词之后，实义动词之前。故选C。 14．She ________ her room yet, so it’s very messy. A．hasn’t cleaned B．didn’t clean C．won’t clean 【答案】A 【详解】句意：她还没有打扫她的房间，所以它非常乱。 考查现在完成时。根据句中“yet (还，尚未)”以及“so it’s very messy”可知，此处强调过去未打扫房间的动作对现在造成的影响 (房间现在很乱)，应使用现在完成时的否定形式，其结构为“hasn’t/haven’t+过去分词”。主语She为第三人称单数，用hasn’t cleaned。故选A。 15．I ______ just ______ my homework, so I can go out now. A．have; finished B．did; finish C．will; finish 【答案】A 【详解】句意：我刚刚完成了我的作业，所以我现在可以出去了。 考查现在完成时。根据句意中的just可知，动作发生在过去但对现在有影响（现在可以出去），应使用现在完成时have/has+过去分词。故选A。 16．—What’s wrong, Tommy? Why are you crying? —Mummy, Jeremy________ my cookies. There’s none left. A．eats up B．eating up C．was eating up D．has eaten up 【答案】D 【详解】句意：——怎么了，汤米？你为什么哭？——妈妈，杰瑞米把我的饼干吃光了。一个都没剩。 考查现在完成时。根据“There’s none left.”可知，饼干一块都没有了，说明杰里米已经把饼干吃光了，强调过去的动作对现在造成的影响，用现在完成时，D项符合。故选D。 17．Many wild animals ________ their habitats because of deforestation in recent years. A．lose B．lost C．have lost D．will lose 【答案】C 【详解】句意：由于近些年的森林砍伐，许多野生动物已经失去了它们的栖息地。 考查动词时态。根据“Many wild animals...their habitats because of deforestation in recent years.”可知，句中动作从过去持续到现在，强调对现在的影响，应用现在完成时。故选C。 18．The city ________ a lot over the past few years, with more modern buildings. A．changes B．changed C．has changed 【答案】C 【详解】句意：在过去的几年里，这座城市发生了巨大变化，出现了更多现代建筑。 考查现在完成时。changes用于一般现在时，第三人称单数形式，表示经常性变化；changed用于一般过去时，表示过去发生的变化；has changed用于现在完成时，表示过去发生且持续到现在或对现在有影响的变化。根据“over the past few years”可知，动作从过去持续到现在，强调对现在的影响，应使用现在完成时。故选C。 19．She ________ her travel diary yet, so she is still writing it. A．hasn’t finished B．didn’t finish C．won’t finish 【答案】A 【详解】句意：她还没有完成她的旅行日记，所以她还在写。 考查现在完成时。根据句中“yet”和“is still writing”可知，设空处表示动作从过去持续到现在，强调持续性，应使用现在完成时，谓语结构为“have/has+过去分词”。故选A。 20．—Do you know the writer of this book? —Yes. He ________ a lot of works about nature so far. A．creates B．created C．has created D．will create 【答案】C 【详解】句意：——你知道这本书的作者吗？——知道。到目前为止，他已经创作了许多关于自然的作品。 考查动词时态。根据答语中“so far”可知，动作从过去持续到现在，强调对现在的影响或结果，应使用现在完成时。故选C。 21．My uncle ________ as a doctor for 20 years. He is very experienced. A．works B．worked C．has worked D．will work 【答案】C 【详解】句意：我叔叔已经做医生20年了。他非常有经验。 考查现在完成时。works工作，一般现在时；worked工作，一般过去时；has worked已经工作，现在完成时；will work将工作，一般将来时。根据“for 20 years”可知，这里表示从过去持续到现在的动作，强调经验积累，应用现在完成时。故选C。 22．________ you ever ________ to the new museum? A．Do; go B．Did; go C．Have; been D．Will; go 【答案】C 【详解】句意：——你曾经去过新博物馆吗？ 考查现在完成时。根据“ever”以及句意可知，此处表达“曾经去过某地”，应用现在完成时，其结构为“have/has+过去分词”，主语为you，助动词用have，“去过”为“have been to”。故选C。 23．— Have you ________ signed up for the volunteer program? — Yes, I did it yesterday. A．yet B．already C．never D．ever 【答案】B 【详解】句意：——你已经报名参加志愿者项目了吗？——是的，我昨天报名的。 考查副词辨析。yet还，用于否定或疑问句；already已经；never从不；ever曾经。根据答句“Yes, I did it yesterday.”可知，动作已完成，且疑问句为现在完成时，表示“已经”。故选B。 24．She ______ the project yet. A．didn’t complete B．haven’t completed C．hasn’t completed 【答案】C 【详解】句意：她还没有完成这个项目。 考查现在完成时的用法。句中“yet”表示“尚未”，通常与现在完成时连用，排除A选项；主语是She，助动词应用hasn’t。故选C。 25．—How is your report? —I ________ half of it already. And I will finish the rest this afternoon. A．am doing B．was doing C．will do D．have done 【答案】D 【详解】句意：——你的报告怎么样了？——我已经完成了一半。我将在今天下午完成剩下的。 考查现在完成时。am doing是现在进行时；was doing是过去进行时；will do是一般将来时；have done是现在完成时。already是现在完成时的标志词。have/has+过去分词构成现在完成时。主语I是第一人称，用have。do做，过去分词是done。故选D。 26．—What’s your favorite book, Carrie? —Tom Sawyer. It’s one of the best books that I ________. A．read B．was reading C．will read D．have read 【答案】D 【详解】句意：——Carrie，你最喜欢的书是什么？——《汤姆·索亚历险记》。它是我读过的最好的书之一。 考查动词时态。根据“It’s one of the best books that I...”可知，空格处需用现在完成时（have read），强调“至今为止读过”的经历，与前半句“one of the best books”形成逻辑对应（即“读过的书中最好的之一”）。故选D。 27．—It seems you remember everything in the book Harry Potter. —That’s because I ________ it many times. A．read B．have read C．will read D．was reading 【答案】B 【详解】句意：——你似乎记得《哈利·波特》书中的所有内容。——那是因为我已经读过很多遍了。 考查现在完成时。根据“many times”可知，此句时态为现在完成时，强调过去的动作对现在的影响，读过很多遍导致记得内容，结构为have/has done。故选B。 28．—Excuse me, may I use your dictionary? I ________ mine behind. —Sure. Here you are. A．leave B．have left C．will leave D．have leaved 【答案】B 【详解】句意：——打扰一下，我能用一下你的词典吗？我的忘记带了。——当然。给你。 考查时态。根据“may I use your dictionary”可知，此处表示过去的动作对现在造成影响，用现在完成时，leave的过去分词为left。故选B。 29．—Since 2008, Zhang Guimei ________ many girl students walk out of the mountains to achieve their dreams. —What a great teacher she is! A．helped B．has helped C．was helping D．helps 【答案】B 【详解】句意：——自2008年以来，张桂梅帮助了许多女学生走出大山，实现她们的梦想。——她真是一位伟大的老师！ 考查动词时态。根据“Since 2008”这一时间状语可知，句子应用现在完成时，强调动作从过去持续到现在并对现在产生影响，故选B。 30．Eric ______ many things since he became interested in science. A．is learning B．would learn C．will learn D．has learned 【答案】D 【详解】句意：自从Eric对科学产生兴趣以来，他已经学会了许多东西。 考查时态。根据“since he became interested in science”可知，时态用现在完成时have/has done，主语是Eric，助动词用has。故选D。 二、单词拼写(本大题共20小题，每小题2分，共40分) 31．She (learn) about the four great inventions of China since she was in primary school. 【答案】has learned 【详解】句意：自从上小学以来，她已经了解了中国的四大发明。根据“since she was in primary school”可知，句子时态为现在完成时，其结构为“have/has+动词的过去分词”，主语为第三人称单数she，所以助动词用has，learn的过去分词为learned。故填has learned。 32．Great inventions (change) human life greatly since the Industrial Revolution. 【答案】have changed 【详解】句意：自工业革命以来，伟大的发明极大地改变了人类的生活。change“改变”，动词；根据“since the Industrial Revolution”可知，句子时态是现在完成时，其结构为“have/has+动词的过去分词”，主语“Great inventions”是复数，因此用助动词have，change的过去分词是changed。故填have changed。 33．My sister (not pay) her credit card bill yet, and she may face extra charges. 【答案】hasn’t paid 【详解】句意：我妹妹还没有付她的信用卡账单，她可能会面临额外的费用。pay“支付”，根据“yet”可知，句子时态为现在完成时，其结构为“have/has done”，主语“My sister”为第三人称单数，助动词用has，其否定形式为hasn’t，pay的过去分词为paid。故填hasn’t paid。 34．The police (warn) people not to go out because of the coming storm so far. 【答案】have warned 【详解】句意：到目前为止，因为即将来临的暴风雨，警察已经警告人们不要外出。warn“警告”，so far“到目前为止”是现在完成时的标志词，现在完成时结构为have/has+过去分词，主语the police为复数，因此填have warned。故填have warned。 35．He (practice) oil painting for ten years and his skills are perfect now. 【答案】has practiced 【详解】句意：他已经练习油画十年了，现在他的技艺已经非常精湛。for ten years表示一个从过去开始并持续到现在的动作，这是现在完成时的典型标志。现在完成时的结构为“have/has+过去分词”，本句主语是第三人称单数He，practice的过去分词是practiced。故填has practiced。 36．They (visit) the art museum twice since they moved to this city. 【答案】have visited 【详解】句意：自从搬到这座城市以来，他们已经参观过这个艺术博物馆两次了。since they moved to this city是现在完成时的典型标志，表示从过去某一时间开始一直持续到现在的动作或状态。现在完成时的结构为“have/has+过去分词”，本句主语是They，visit的过去分词是visited。故填have visited。 37．The city (change) a lot since it became a special economic zone. 【答案】has changed 【详解】句意：这个城市自从成为经济特区以来变化很大。根据“since it became a special economic zone.”可知，此处用现完成时，其结构是have/has done，change“改变”，是动词，过去分词是changed。主语是“The city”，助动词用has，故填has changed。 38．Mr Chen (make) dough figurines since he was young. 【答案】has been making/has made 【详解】句意：陈先生从小就一直在做面人。make“制作”，句中“since he was young”表示“从他小时候起”，这是现在完成时或现在完成进行时的典型时间标志。has made（现在完成时），强调从过去开始到现在为止，“做面人”这个动作已经完成或持续到现在。has been making（现在完成进行时），强调从过去开始一直持续到现在，并且这个动作可能还在继续进行，更能体现“从小一直做”的持续性。故填has been making/has made。 39．We (learn) English for 6 years. We can speak it well now. 【答案】have learned/have learnt 【详解】句意：我们已经学习英语6年了。我们现在能说得很好了。learn“学习”，动词；根据“for 6 years”可知，句子时态为现在完成时，其结构为“have/has+动词的过去分词”，主语是“We”，所以助动词用have，learn的过去分词是learned/learnt。故填have learned/have learnt。 40．They (face) many challenges since they started their business. 【答案】have faced 【详解】句意：自创业以来，他们面临着许多挑战。由“since”可知，主句用现在完成时，主语“They”是复数，助动词用have，face的过去分词为faced。故填have faced。 41．He (grow) taller and stronger since he joined the sports team. 【答案】has grown 【详解】句意：自从他参加运动队以来，他长得又高又壮了。grow“成长”，根据“since he joined the sports team”可知，此处用现在完成时（have/has+动词过去分词），主语he是第三人称单数，助动词用has，故填has grown。 42．I (read) this book twice. 【答案】have read 【详解】句意：我读过这本书两遍。根据“ twice”和提示词可知，本句是现在完成时，结构为have/has+done，主语是I，应用have，read的过去分词为read。故填have read。 43．Uncle Wang (live) in Nanjing since three years ago. 【答案】has lived 【详解】句意：王叔叔自从三年前就住在南京。根据“since three years ago”可知，句子时态为现在完成时，其结构为“have/has + 过去分词”。主语“Uncle Wang”是第三人称单数，所以助动词用“has”，“live”的过去分词是“lived”。故填has lived。 44．We (know) each other since we were children. 【答案】have known 【详解】句意：我们自从还是孩子的时候就彼此认识了。根据“since we were children”可知，句子应用现在完成时，其结构为“have/has+过去分词”，主语We为复数，所以助动词用have，know的过去分词是known。故填have known。 45．I have (make) great progress in math with the teacher’s help. 【答案】made 【详解】句意：在老师的帮助下，我在数学上取得了很大进步。make“做，取得”，动词；句子为现在完成时，结构为have + 过去分词，make的过去分词为made。故填made。 46．They (raise) more than 10,000 yuan for the poor children so far. 【答案】have raised 【详解】句意：到目前为止，他们已经为贫困儿童筹集了一万多元。“so far”是现在完成时的标志词，主语“They”是复数，“raise”的现在完成时形式是“have raised”。故填have raised。 47．He (feel) stressed recently because of the coming exam. 【答案】has felt 【详解】句意：他最近因为即将到来的考试感到压力很大。根据“He…stressed recently because of the coming exam.”以及时态标志词可知，“recently”是现在完成时的提示词，现在完成时的结构为“have/has+动词过去分词”；主语为he，是第三人称单数，助动词用has，feel的过去分词为felt。故填has felt。 48．—Have you ever (help) someone with a nosebleed? —Yes, I helped my little sister last month. 【答案】helped 【详解】句意：——你曾经帮助过流鼻血的人吗？——是的，我上个月帮助了我的妹妹。根据“Have you ever”可知，句子为现在完成时，助动词have后跟动词help“帮助”的过去分词形式helped。故填helped。 49．The air quality in our city (improve) greatly in recent years. 【答案】has improved 【详解】句意：近年来，我们城市的空气质量有了很大的改善。improve“改善”，动词；根据“in recent years”可知，动作从过去持续到现在，强调结果，应用现在完成时。主语“The air quality”为不可数名词短语，视为第三人称单数，故填has improved。 50．Sun Li has (win) many awards for being a role model in the film industry. 【答案】won 【详解】句意：孙俪因在电影行业树立榜样而赢得了许多奖项。根据“has”可知，此处需填过去分词构成现在完成时，win的过去分词为won。故填won。 试卷第1页，共3页 试卷第1页，共3页 学科网（北京）股份有限公司 $