Unit 1 课时3 Section A Grammar Focus（大单元分层作业）英语新教材人教版九年级上册

**基本信息** 初中英语新授课同步练，以A/B/C组+拓展分层设计，构建"词汇-句型-语篇-中考"进阶路径，强化一般过去时与现在完成时语法巩固，适配差异化教学需求。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |A组|基础词汇（电子的、音频等）、语法定义与结构|单词/词组默写，动词形式填空，夯实语言能力基础| |B组|句型应用（时态对比）、语法辨析|补全句子（如"修马路"）、单项选择，提升思维品质| |C组|语篇综合运用（时态语境）|选词填空（乡村变化主题），培养语篇理解能力| |拓展|中考考点（时态真题）|近5年中考单选/改写题，衔接测评需求，发展学习能力|

Unit 1 The Changing World 课时3 Section A (Grammar Focus) 分层作业 A组 巩固过关 C组 思维拔高 B组 能力进阶 拓展 链接中考 语法 词汇 ___________ adj. /n. 音频的；音频 ___________ adj. 电子的 ___________ n. 泥土；尘土 ___________n. 小路；轨道 ___________ adj. 宽的；宽阔的 ___________ 电子书 ___________成千上万的 ___________泥土小路 ___________因此；结果 句型 1.He ___________________________ your grandfather about 20 years ago. 大约20年前，他成了你祖父的好朋友。 2.They _______________ each other for ages! 他们已经很多年没见面了！ 3.Our village _________ just _______ a new hospital. 我们村刚建了一所新医院。 4.Many people _____________ in big cities. Now, more of them __________________ to live and work here. 许多人过去在大城市工作。现在，更多人回来这里生活和工作。 对比维度 一般过去时 现在完成时 核心定义 表示过去某个时间发生、已经结束的动作 / 状态（和现在彻底割裂） 表示过去发生的动作，对现在有影响或持续到现在（连接过去与此刻） 时间标志词 yesterday, then, once, last + 时间名词，时间段 + ago, just now, that morning/afternoon/evening 等 already，yet，just，recently，for + 时间段，since + 时间点，ever，never，so far，up to now等 句式结构 句式结构 （be 动词） 肯定句：主语 + was/were + 表语. 否定句：主语 + was/were + not + 表语. 一般疑问句：Was/Were + 主语 + 表语？ （实义动词） 肯定句：主语 + 动词过去式 + 其他. 否定句：主语 + didn’t + 动词原形 + 其他. 一般疑问句：Did + 主语 + 动词原形 + 其他？ 肯定句：主语 + have/has + 动词过去分词 + 其他. 否定句：主语 + haven’t/hasn’t + 动词过去分词 + 其他. 一般疑问句：Have/Has + 主语 + 动词过去分词 + 其他？ 一、单词默写。 1.________ adj. 电子的 2._________ adj. /n. 音频的；音频 3.________ n. 泥土；尘土 4._________ n. 小路；轨道 5.________ adj. 宽的；宽阔的 二、词组默写。 1. 有声书_____________________ 2. 泥土小路 _______________________ 3. 电子书 _____________________ 4. 结果 _______________________ 5. 在过去 ________________________ 6. 以及；还有 _______________________ 三、用括号内所给词的适当形式填空。 1. They __________ (not return) the books to the library yet. 2.My sister __________ (move) to this town five years ago. 3.__________ your brother ever __________ (climb) that high mountain? 4.We __________ (learn) English for six years. 5. Lisa __________ (use) to be short, but now she is tall. 一、根据汉语提示补全句子。 1.镇上刚刚修好了一条宽阔的马路。 The town __________ just __________ a wide road. 2.以前很多村民常常去外地打工。 Lots of villagers __________ __________ work in other cities. 3.如今不少年轻人已经返乡创业了。 Now many young people __________ __________ back to start businesses here. 4.这是我吃过最美味的本地小吃。 It’s the most delicious local snack I __________ ever __________. 5. 村民们努力植树造林，因此空气变得清新很多。 Villagers worked hard to plant trees. __________ __________ __________, the air became much fresher. 二、单项选择。 ( ) 1. —Has your brother visited the new library ______? —No, he hasn’t. A. already B. yet C. just D. ever ( ) 2. Big changes ______ in this town two years ago. A. took place B. have taken place C. take place D. will take place ( ) 3. The town ______ quiet, but now it is full of people. A. used to B. is used to C. was used to D. use to ( ) 4. They ______ many new roads in the town so far. A. build B. built C. have built D. will build ( ) 5. My grandma ______ in this small town for 20 years. A. lives B. lived C. has lived D. will live ( ) 6. —When ______ you go back to your hometown? —Last Spring Festival. A. have B. did C. do D. are ( ) 7. —______ you ever ______ the new museum in your town? —Yes, I went there last month. A. Did; visit B. Have; visited C. Do; visit D. Will; visit ( ) 8. My parents ______ work in big cities, but now they stay at home. A. used to B. are used to C. was used to D. use to ( ) 9. So far, we ______ lots of trees along the river. A. plant B. planted C. have planted D. will plant ( ) 10. The little girl ______ in her hometown since she was born. A. stays B. stayed C. has stayed D. will stay 一、选词填空 connect, cross, industry, daily, build, rich, develop, take, travel, change In the past, 1.________ in remote(遥远的) mountain villages was really difficult for every local person. There used to be no strong high bridges for people 2.________ over rivers and mountains. Most roads were just dirt tracks which were full of stones. If it rained heavily, the roads would become slippery(滑的) and dangerous. It 3.________ villagers nearly a whole day to walk to the local market to sell fruits and vegetables. The terrible transport made the local farming 4.________ grow very slowly. Many farmers could not send their goods out to big cities, so their 5.________ lives were full of trouble. Some families even couldn’t afford daily necessities.. Now great 6.________ have taken place in this area during the past ten years. The government 7.________ thousands of kilometers of railways and wide highways. These new traffic lines 8.________ small villages with modern cities. A long journey that used to take one day only takes several hours now. As a result, local people become much 9.________ and happier. More young people choose to come back to start small businesses, and the local economy keeps 10.________ fast. 1、 单项选择。 ( ) 1.（2025・福建）Since last year, our school ______ free breakfasts to students in need. A. offered B. has offered C. was offered D.offers ( ) 2.（2025・云南）The film Ne Zha 2 is worth seeing. I ______ it three times so far. A. have seen B. am going to see C. saw D. see ( ) 3.（2024・北京）With the help of my teacher, I ______ much progress in English since last year. A. am making B. will make C. was making D. have made ( ) 4.（2022・上海）The new restaurant ______ two surveys on its food and service since June. A. is doing B. will do C. did D. has done ( ) 5.（2023・湖南郴州）—Oh, I’m nearly lost in this city. —Yeah. The city ______ a lot since you left. A. has changed B. changed C. changes D.will change ( ) 6.（2024・江苏镇江）So far, some of the dialects ______ in use for thousands of years. A. were B. are C. have been D. will be ( ) 7.（2022・黑龙江牡丹江）—Your watch is so cool! When did you get it? —On my 12th birthday. I ______ it for 3 years. A. bought B. have had C. have bought D.buy ( ) 8.（2024・西藏）Red Star Over China is a great book. I ______ it three times already. A. read B. reads C. has read D. have read ( ) 9.（2023・四川凉山）—Becky, we’re leaving soon. Are you ready? —No, I ______ my clothes yet. A. have packed B. haven’t packed C. didn’t pack D.packed ( ) 10.（2025・山东济南）—______ you ever ______ to Mount Tai? —Yes, I went there last summer. A. Have; been B. Has; been C. Have; gone D.Did; go 二、按要求改写句子 1.（2025・山东济南中考）I visited the new library twice.（对划线部分提问） ________ ________ ________ ________ you ________ the new library? 2.（2024・湖北武汉中考）They have lived in Wuhan since 2019.（对划线部分提问） ________ ________ have they lived in Wuhan? 答案：How long 3.（2024・江苏苏州中考）He writes a letter to his parents every month.（改为现在完成时，加标志词 recently） He ________ ________ a letter to his parents recently. 4.（2025・陕西中考）She has already finished her volunteer work.（改为否定句） She ________ ________ her volunteer work ________. 5.（2024・江苏连云港中考）Taijiquan spreads to over 150 countries now.（用 so far 改写） Taijiquan ________ ________ to more than 150 countries so far. 答案：has spread 6.（2025・云南中考）I have seen the movie Ne Zha three times.（改为一般过去时） I ________ Ne Zha 2 last month. 7.（2026・四川凉山中考预考题）We have lived in this town for 8 years.（改为一般疑问句） ________ you ________ in this town for eight years? 8.（2024・四川成都中考）The astronauts worked in Tiangong two months.（用 since April 改写） The astronauts ________ ________ in Tiangong since April this year. 1 / 6 学科网（北京）股份有限公司 $ Unit 1 The Changing World 课时3 Section A (Grammar Focus) 分层作业 A组 巩固过关 C组 思维拔高 B组 能力进阶 拓展 链接中考 语法 词汇 audio adj. /n. 音频的；音频 digital adj. 电子的 dirt n. 泥土；尘土 track n. 小路；轨道 wide adj. 宽的；宽阔的 digital books 电子书 thousands of成千上万的 dirt tracks泥土小路 as a result因此；结果 句型 1.He became a friend of your grandfather about 20 years ago. 大约20年前，他成了你祖父的好朋友。 2.They haven’t seen each other for ages! 他们已经很多年没见面了！ 3.Our village has just built a new hospital. 我们村刚建了一所新医院。 4.Many people used to in big cities. Now, more of them have come back to live and work here. 许多人过去在大城市工作。现在，更多人回来这里生活和工作。 对比维度 一般过去时 现在完成时 核心定义 表示过去某个时间发生、已经结束的动作 / 状态（和现在彻底割裂） 表示过去发生的动作，对现在有影响或持续到现在（连接过去与此刻） 时间标志词 yesterday, then, once, last + 时间名词，时间段 + ago, just now, that morning/afternoon/evening 等 already，yet，just，recently，for + 时间段，since + 时间点，ever，never，so far，up to now等 句式结构 句式结构 （be 动词） 肯定句：主语 + was/were + 表语. 否定句：主语 + was/were + not + 表语. 一般疑问句：Was/Were + 主语 + 表语？ （实义动词） 肯定句：主语 + 动词过去式 + 其他. 否定句：主语 + didn’t + 动词原形 + 其他. 一般疑问句：Did + 主语 + 动词原形 + 其他？ 肯定句：主语 + have/has + 动词过去分词 + 其他. 否定句：主语 + haven’t/hasn’t + 动词过去分词 + 其他. 一般疑问句：Have/Has + 主语 + 动词过去分词 + 其他？ 一、单词默写。 1.________ adj. 电子的 2._________ adj. /n. 音频的；音频 3.________ n. 泥土；尘土 4._________ n. 小路；轨道 5.________ adj. 宽的；宽阔的 【答案】1.digital 2.audio 3.dirt 4.track 5.wide 二、词组默写。 1. 有声书_____________________ 2. 泥土小路 _______________________ 3. 电子书 _____________________ 4. 结果 _______________________ 5. 在过去 ________________________ 6. 以及；还有 _______________________ 【答案】1.audio books 2.dirt tracks 3.digital books 4.as a result 5.in the past 6.as well as 三、用括号内所给词的适当形式填空。 1. They __________ (not return) the books to the library yet. 【答案】haven’t returned 【解析】yet 是现在完成时标志性词汇，多用于否定句、疑问句；句子主语 they 为复数，现在完成时否定结构为主语 + haven’t + 动词过去分词；return 的过去分词为 returned，因此填 haven’t returned。 2.My sister __________ (move) to this town five years ago. 【答案】moved 【解析】five years ago（五年前）是一般过去时的时间标志，代表动作发生在过去、与现在无关联；实义动词 move 需使用过去式，move 的过去式为 moved，因此填 moved。 3.__________ your brother ever __________ (climb) that high mountain? 【答案】Has; climbed 【解析】ever（曾经）是现在完成时疑问句式标志；主语 your brother 是第三人称单数，现在完成时一般疑问结构为 Has + 主语 + 动词过去分词；climb 的过去分词为 climbed，因此填 Has; climbed。 4.We __________ (learn) English for six years. 【答案】have learned /have learnt 【解析】for + 时间段（for six years）表示动作从过去持续到现在，要用现在完成时；主语 we 为复数，结构为主语 + have + 动词过去分词；learn 过去分词有 learned /learnt 两种形式，均可填写，因此填 have learned /have learnt。 5. Lisa __________ (use) to be short, but now she is tall. 【答案】used 【解析】固定短语 used to do sth. 表示 “过去常常……（现在已经不这样了）”，用于对比过去和现在的状态；句中后半句 but now she is tall 体现今昔对比，因此填 used。 一、根据汉语提示补全句子。 1.镇上刚刚修好了一条宽阔的马路。 The town __________ just __________ a wide road. 【答案】has; built 【解析】“修建” 英文动词为 build；just（刚刚）是现在完成时典型标志词，强调动作刚完成且对现在有影响；主语 the town 是第三人称单数，现在完成时结构为 has + 动词过去分词；build 的过去分词为 built，因此填 has; built。 2.以前很多村民常常去外地打工。 Lots of villagers __________ __________ work in other cities. 【答案】used to 【解析】固定搭配 used to do sth. 含义为 “过去常常做某事”，用于描述过去习惯性动作，暗含现在情况已经改变；句中 “以前” 体现今昔对比，后面接动词原形 work，因此填 used to。 3.如今不少年轻人已经返乡创业了。 Now many young people __________ __________ back to start businesses here. 【答案】have come 【解析】“回来” 英文动词为 come；语境中 “已经” 体现动作发生在过去，持续到现在并造成当下现状，使用现在完成时；主语 many young people 为复数，结构为 have + 动词过去分词；come 的过去分词为 come，因此填 have come。 4.这是我吃过最美味的本地小吃。 It’s the most delicious local snack I __________ ever __________. 【答案】have; tasted 【解析】“品尝，吃” 英文动词为 taste；ever（曾经）是现在完成时标志词，用于最高级后表示 “迄今为止”；主语 I 搭配助动词 have，现在完成时结构为 have + 过去分词；taste 的过去分词是 tasted，因此填 have; tasted。 5. 村民们努力植树造林，因此空气变得清新很多。 Villagers worked hard to plant trees. __________ __________ __________, the air became much fresher. 【答案】As a result 【解析】固定短语 as a result 意为 “因此，结果”，用于承接前文原因，引出后文带来的结果；短语置于句首时首字母大写，后面常用逗号隔开，符合句子逻辑，因此填 As a result。 二、单项选择。 ( ) 1. —Has your brother visited the new library ______? —No, he hasn’t. A. already B. yet C. just D. ever ( ) 2. Big changes ______ in this town two years ago. A. took place B. have taken place C. take place D. will take place ( ) 3. The town ______ quiet, but now it is full of people. A. used to B. is used to C. was used to D. use to ( ) 4. They ______ many new roads in the town so far. A. build B. built C. will build D. have built ( ) 5. My grandma ______ in this small town for 20 years. A. lives B. lived C. has lived D. will live ( ) 6. —When ______ you go back to your hometown? —Last Spring Festival. A. have B. did C. do D. are ( ) 7. —______ you ever ______ the new museum in your town? —Yes, I went there last month. A. Did; visit B. Will; visit C. Do; visit D. Have; visited ( ) 8. My parents ______ work in big cities, but now they stay at home. A. used to B. are used to C. was used to D. use to ( ) 9. So far, we ______ lots of trees along the river. A. plant B. planted C. have planted D. will plant ( ) 10. The little girl ______ in her hometown since she was born. A. stays B. stayed C. has stayed D. will stay 【答案】1.B 2.A 3.A 4.D 5.C 6.B 7.D 8.A 9.C 10.C 【解析】1.already、yet、just、ever 都是现在完成时标志词；yet 用于否定句、疑问句末尾；already、just 多用于肯定句；ever 意为 “曾经”，语义不符合本句问答语境。本句为现在完成时一般疑问句，句末用 yet，故选 B。 2. “发生” 固定短语 take place；two years ago（两年前）是一般过去时标志，动作发生在过去，与现在无联系；take 的过去式为 took，因此选用 took place，故选 A。 3. used to + 形容词 / 动词原形，表示 “过去曾经……，现在不再”；be used to doing 意为 “习惯于”，be used to do 意为 “被用来做”，均不符合本句今昔对比语境；主语 the town 为单数，固定搭配 used to，故选 A。 4.so far（到目前为止）是现在完成时标志性短语，强调动作从过去持续到现在；主语 they 为复数，现在完成时结构为 have + 过去分词；build 的过去分词为 built，故选 D。 5. “for + 时间段” 表示动作持续二十年，从过去延续至现在，需使用现在完成时；主语 my grandma 是三单，搭配 has + 过去分词 lived，故选 C。 6. 答语 Last Spring Festival 为明确过去时间，问句使用一般过去时；实义动词 go 的疑问句需借助助动词 did，后面动词用原形 go，故选 B。 7. ever（曾经）是现在完成时疑问标志；现在完成时一般疑问结构为 Have/Has + 主语 + 过去分词；主语 you 搭配 Have，visit 过去分词为 visited，故选 D。 8. used to do sth. 表示 “过去常常做某事”，后半句 but now 体现今昔对比；be used to doing 习惯于，be used to do 被用来做，均不符合题意，故选 A。 9. so far 是现在完成时标志，强调动作到目前为止已经完成；主语 we 为复数，用 have + 过去分词 planted，故选 C。 10. since she was born（自从出生起）表示动作从过去持续到现在，用现在完成时；主语 the little girl 是三单，用 has stayed，故选 C。 一、选词填空 connect, cross, industry, daily, build, rich, develop, take, travel, change In the past, 1.________ in remote(遥远的) mountain villages was really difficult for every local person. There used to be no strong high bridges for people 2.________ over rivers and mountains. Most roads were just dirt tracks which were full of stones. If it rained heavily, the roads would become slippery(滑的) and dangerous. It 3.________ villagers nearly a whole day to walk to the local market to sell fruits and vegetables. The terrible transport made the local farming 4.________ grow very slowly. Many farmers could not send their goods out to big cities, so their 5.________ lives were full of trouble. Some families even couldn’t afford daily necessities.. Now great 6.________ have taken place in this area during the past ten years. The government 7.________ thousands of kilometers of railways and wide highways. These new traffic lines 8.________ small villages with modern cities. A long journey that used to take one day only takes several hours now. As a result, local people become much 9.________ and happier. More young people choose to come back to start small businesses, and the local economy keeps 10.________ fast. 【答案】1.travelling 2.to cross 3.took 4.industry 5.daily 6.changes 7.has built 8.connect 9.richer 10.developing 【解析】1.句意：过去，在偏远山村出行对当地人来说十分艰难。本句缺少主语，需将动词变为动名词；travel 表示 “出行、旅行”，贴合全文交通变迁主题，其动名词形式为 travelling；故填 travelling。 2.句意：过去没有坚固大桥供人们翻山渡河。 固定结构 there be sth. for sb. to do sth.（有某物供某人去做）；cross 为动词 “跨越”，此处用不定式 to cross 作后置定语修饰 bridges；故填 to cross。 3.句意：村民要花一整天走到镇上集市卖农产品。固定句型 It takes sb. + 时间 to do sth.（花费某人多久做某事）；本段时态为 In the past 过去时，take 过去式为 took；故填 took。 4.句意：糟糕的交通让当地农业产业发展缓慢。farming industry 为固定搭配，意为 “农业产业”；industry 是名词 “产业、行业”，作 make 的宾语；故填 industry。 5.句意：农民无法外销农产品，他们的日常生活充满困难。daily 为形容词，意为 “日常的”，修饰名词 lives；daily lives 固定短语 “日常生活”；故填 daily。 6.句意：过去十年间，该地区已发生了巨大变化。during the past ten years 体现家乡巨变，great 后接可数名词复数；change 作名词表示 “变化”，复数形式 changes；great changes have taken place 是固定表达 “发生巨大变化”；故填 changes。 7.句意：政府修建了数千公里铁路公路。build 意为 “修建”；上句中的during the past ten years 是现在完成时标志；主语 the government 为单数，结构 has + 过去分词 built；故填 has built。 8.句意：新交通线路连通乡村与城市。固定搭配 connect...with...，意为 “把…… 和…… 连接起来”；主语 lines 是复数，全文此处为一般现在时，动词用原形 connect；故填 connect。 9.句意：当地人变得更加富裕幸福。much 修饰形容词比较级；rich 意为 “富裕的”，比较级 richer；后文 and happier 为并列比较级，保持形式一致；故填 richer。 10.句意：地方经济持续快速发展。固定搭配 keep doing sth.（持续做某事）；develop 意为 “发展”，动名词形式 developing；故填 developing。 · 1、 单项选择。 ( ) 1.（2025・福建）Since last year, our school ______ free breakfasts to students in need. A. offered B. has offered C. was offered D.offers ( ) 2.（2025・云南）The film Ne Zha 2 is worth seeing. I ______ it three times so far. A. have seen B. am going to see C. saw D. see ( ) 3.（2024・北京）With the help of my teacher, I ______ much progress in English since last year. A. am making B. will make C. was making D. have made ( ) 4.（2022・上海）The new restaurant ______ two surveys on its food and service since June. A. is doing B. will do C. did D. has done ( ) 5.（2023・湖南郴州）—Oh, I’m nearly lost in this city. —Yeah. The city ______ a lot since you left. A. has changed B. changed C. changes D.will change ( ) 6.（2024・江苏镇江）So far, some of the dialects ______ in use for thousands of years. A. were B. are C. have been D. will be ( ) 7.（2022・黑龙江牡丹江）—Your watch is so cool! When did you get it? —On my 12th birthday. I ______ it for 3 years. A. bought B. have had C. have bought D.buy ( ) 8.（2024・西藏）Red Star Over China is a great book. I ______ it three times already. A. read B. reads C. has read D. have read ( ) 9.（2023・四川凉山）—Becky, we’re leaving soon. Are you ready? —No, I ______ my clothes yet. A. have packed B. haven’t packed C. didn’t pack D.packed ( ) 10.（2025・山东济南）—______ you ever ______ to Mount Tai? —Yes, I went there last summer. A. Have; gone B. Has; been C. Have; been D.Did; go 【答案】1.B 2.A 3.D 4.D 5.A 6.C 7.B 8.D 9.B 10.C 【解析】1.· since last year（自去年以来）是现在完成时标志性时间状语，表示动作从过去持续到现在；主语 our school 为单数，现在完成时结构为主语 + has + 动词过去分词；offer 的过去分词为 offered，因此选 has offered，故选 B。 2.so far（到目前为止）是现在完成时标志词，强调到现在为止已经完成的动作；主语 I 搭配助动词 have，see 的过去分词为 seen，构成 have seen；three times 表示累计次数，符合现在完成时用法，故选 A。 3.since last year 表示动作从去年延续至现在，需使用现在完成时；固定搭配 make progress 表示 “取得进步”，make 的过去分词为 made，主语 I 搭配 have，因此填 have made，故选 D。 4.since June（自六月起）为现在完成时标志，说明动作从六月持续至今；主语 the restaurant 是单数，用 has + 过去分词；do 的过去分词为 done，构成 has done，故选 D。 5.since you left（自从你离开后）表示过去发生的改变持续到现在，对当下造成影响，使用现在完成时；主语 the city 为单数，change 过去分词 changed，即 has changed，故选 A。 6.so far 与 for thousands of years 均为现在完成时标志，表状态持续几千年；be in use 表示 “被使用”，延续性短语；主语 dialects 复数，现在完成时结构 have been，故选 C。 7.for 3 years 是时间段，必须搭配延续性动词；buy 是短暂性动词，不能与时间段连用，需转换为延续性动词 have；主语 I 搭配 have，have 的过去分词 had，即 have had，故选 B。 8.already 是现在完成时标志词，用于肯定句；主语为 I，助动词用 have；read 原形与过去分词同形，构成 have read，故选 D。 9.yet 用于现在完成时否定句末尾；答句 No 表示还没有收拾行李，主语 I 搭配 haven’t，pack 过去分词 packed，构成 haven’t packed，故选 B。 10.ever 是现在完成时疑问句标志；have been to 表示 “去过某地，现已返回”，have gone to 表示 “去了还未回来”；主语 you 搭配助动词 Have，符合答句已经归来的语境，故选 C。 二、按要求改写句子 1.（2025・山东济南中考）I have visited the new library twice.（对划线部分提问） ________ ________ ________ ________ you ________ the new library? 【答案】How many times; have; visited 【解析】划线 twice 为次数，对次数提问用固定疑问词组 how many times；原句动作发生在过去且强调至今累计次数，改用现在完成时；主语 you 搭配 Have，visit 过去分词 visited。 2.（2024・湖北武汉中考）They have lived in Wuhan since 2019.（对划线部分提问） ________ ________ have they lived in Wuhan? 答案：How long 【答案】How long 【解析】since + 时间点、for + 时间段均表示时长，对持续时长提问用固定疑问词组 how long。 3.（2024・江苏苏州中考）He writes a letter to his parents every month.（改为现在完成时，加标志词 recently） He ________ ________ a letter to his parents recently. 【答案】has written 【解析】recently 是现在完成时标志；主语 he 为第三人称单数，助动词用 has；write 的过去分词为 written。 4.（2025・陕西中考）She has already finished her volunteer work.（改为否定句） She ________ ________ her volunteer work ________. 【答案】hasn’t finished; yet 【解析】现在完成时变否定直接在助动词后加 not，has not 缩写为 hasn’t；肯定句中的 already 改为 yet，放置在否定句句末。 5.（2024・江苏连云港中考）Taijiquan spreads to over 150 countries now.（用 so far 改写） Taijiquan ________ ________ to more than 150 countries so far. 答案：has spread 【答案】has spread 【解析】so far 为现在完成时标志；主语 Taijiquan 是单数，助动词用 has；spread 原形与过去分词同形。 6.（2025・云南中考）I have seen the movie Ne Zha three times.（改为一般过去时） I ________ Ne Zha 2 last month. 【答案】saw 【解析】last month（上个月）是一般过去时标志，see 的过去式为 saw。 7.（2026・四川凉山中考预考题）We have lived in this town for 8 years.（改为一般疑问句） ________ you ________ in this town for eight years? 【答案】Have; lived 【解析】现在完成时变一般疑问句，直接将助动词 have/has 提前；主语为 you，将 Have 放句首，动词仍用过去分词 lived。 8.（2024・四川成都中考）The astronauts worked in Tiangong two months.（用 since April 改写） The astronauts ________ ________ in Tiangong since April this year. 【答案】have worked 【解析】since April 是现在完成时标志；主语 astronauts 为复数，助动词用 have；work 过去分词为 worked。 1 / 6 学科网（北京）股份有限公司 $ Unit 1 The Changing World 课时3 Section A （Grammar Focus） 分层作业 参考答案 核心知识速记 词汇：audio digital dirt track wide digital books thousands of dirt tracks as a result 句型：1. became a friend of 2.haven’t seen 3.has; built 4. used to; have come back 一、单词默写。 1.digital 2.audio 3.dirt 4.track 5.wide 二、词组默写。 1.audio books 2.dirt tracks 3.digital books 4.as a result 5.in the past 6.as well as 三、 用括号内所给词的适当形式填空。 1.haven’t returned 2.moved 3.Has; climbed 4.have learned 5.used 一、根据汉语提示补全句子。 1.has; built 2.used to 3.have come 4.have; tasted 5.As a result 二、单项选择 1.B 2.A 3.A 4.D 5.C 6.B 7.D 8.A 9.C 10.C 一、选词填空 1.travelling 2.to cross 3.took 4.industry 5.daily 6.changes 7.has built 8.connect 9.richer 10.developing 拓展 链接中考 一、单项选择 1.B 2.A 3.D 4.D 5.A 6.C 7.B 8.D 9.B 10.C 二、按要求改写句子 1.How many times have; visited 2.How long 3.has written 4.hasn’t finished; yet 5.has spread 6.saw 7.Have; lived 8.have worked 1 / 6 学科网（北京）股份有限公司 $