Unit 1 Teenagers today Period3 Understanding ideas（Grammar）同步练习2026-2027学年外研版英语九年级上册

**基本信息** 初中英语新授课同步练，聚焦语法分层巩固，通过基础语法点→语境应用→语篇综合的递进路径，培养语言能力与文化意识。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础层|单一语法点（连词、if条件句）|单项选择、单词拼写、完成句子直接考查基础语法规则| |进阶层|语境语法应用|选词填空辨析连词，语法填空结合剪纸艺术语境强化语法运用| |综合层|语篇理解与综合运用|阅读理解融入青少年发明、国际青年日主题，提升语篇分析与跨文化理解能力|

Unit 1 Teenagers today Period3 Understanding ideas（Grammar）分层作业 学校:___________姓名：___________班级：___________考号：___________ 一、单项选择 1．We must take action now, ________ some old folk arts will disappear soon. A．because B．if C．or D．when 【答案】C 【详解】句意：我们必须现在采取行动，否则一些古老的民间艺术很快就会消失。 because因为；if如果；or否则；when当……时候。根据“We must take action now”及后句“some old folk arts will disappear soon”可知，前后是“如果不这样做，就会发生某种后果”的关系，表示“否则”，应填or。 2．________ you keep practicing puppet shows, you will do better soon. A．Because B．If C．Though D．Before 【答案】B 【详解】句意：如果你坚持练习木偶戏，你很快就会做得更好。 Because因为；If如果；Though虽然；Before在……之前。根据“you will do better soon”可知，前后句是条件关系，表示“如果”坚持练习，就会做得更好。应填If。 3．You can’t pass the exam ________ you work harder from now on. A．if B．because C．unless D．when 【答案】C 【详解】句意：除非你从现在开始更加努力，否则你无法通过考试。 if如果；because因为；unless除非；when当……时候。根据“You can’t pass the exam...you work harder from now on.”可知，句子表达的是“除非努力否则不能通过”，unless“除非”引导条件状语从句，符合语境。 4．She fell in love with puppetry again ________ she watched her grandpa’s teacher’s wonderful performance. A．if B．so C．because D．unless 【答案】C 【详解】句意：她再次爱上了木偶戏，因为她看了她爷爷的老师的精彩表演。 if如果；so所以；because因为；unless除非。根据句意可知，前半句“再次爱上木偶戏”是结果，后半句“看了精彩表演”是原因，前后句存在因果关系，且空处位于结果之后、原因之前，应用because引导原因状语从句。故选C。 5．If our school ________ a folk art club next term, I ________ a member. A．sets up; will be B．will set up; am C．sets up; am D．will set up; will be 【答案】A 【详解】句意：如果下学期我们学校成立一个民间艺术俱乐部，我将成为一名成员。 在if引导的条件状语从句中，遵循“主将从现”原则，即主句用一般将来时，从句用一般现在时，从句主语“our school”是第三人称单数，谓语动词用三单形式sets up，意为“成立”；时间状语“next term”暗示将来，主句用一般将来时will be，表示“将成为”。 二、单词拼写 6．It is our ________ (duty) to protect our ________ (tradition) art. 【答案】 duty traditional 【详解】句意：保护我们的传统艺术是我们的责任。句型：It is + one’s + 名词 + to do sth，it 是形式主语，真正主语是后面不定式to protect…，our（我们的）是形容词性物主代词，后面接名词。duty，意为 “责任、义务”；此处指一件事的责任，第一空用单数duty；第二空空格后面是名词 art（艺术）；修饰名词要用形容词traditional。 7．If you ________ (move) the puppet’s fingers, it __________ (come) to life. 【答案】 move will come 【详解】句意：如果你移动木偶的手指，它就会活灵活现。本句是if引导的条件状语从句，遵循“主将从现”规则：主句用一般将来时，从句用一般现在时。从句的主语you为第二人称，故第一空填move，第二空填will come。 8．If you ________ (join) us to protect folk arts, you __________ (make) a difference. 【答案】 join will make 【详解】句意：如果你加入我们保护民间艺术，你将会带来改变。本句是if引导的条件状语从句，遵循“主将从现”的规则，即主句使用一般将来时，if引导的从句使用一般现在时。第一空位于if从句中，主语是“you”，谓语动词用原形join；第二空位于主句中，表示将来会产生结果，使用will make。 9．Art becomes popular ________ more young people join in it. 【答案】because 【详解】句意：艺术变得流行是因为更多的年轻人加入进来。前后句之间是因果关系，前果后因，此处应用because“因为”引导原因状语从句。 10．Her love for puppetry ________ (grow) again because she ________ (see) the great show. 【答案】 grew saw 【详解】句意：因为她看了这场精彩的演出，她对木偶戏的热爱再次燃起。①主语Her love为不可数名词，本句描述过去发生的故事，用一般过去时grew；②描述过去看演出的动作，用一般过去时saw。 三、完成句子 11．They are interested in the amazing puppet show.（改为否定句） ____________________________________________________________ 【答案】They are not interested in the amazing puppet show. 【详解】句意：他们对这场精彩的木偶戏感兴趣。原句是含有be动词（are）的陈述句，改为否定句时，直接在be动词“are”后加否定词“not”即可，其他成分保持不变。应填They are not interested in the amazing puppet show. 12．She takes part in after-school activities every week.（改为一般疑问句） ____________________________________________________________ 【答案】Does she take part in after-school activities every week? 【详解】句意：她每周都参加课外活动。原句是一般现在时的陈述句，主语“she”是第三人称单数，谓语动词“takes”是实义动词take的第三人称单数形式；改为一般疑问句时，需借助助动词“Does”置于句首，同时将谓语动词“takes”还原为原形“take”，其他成分保持不变。应填Does she take part in after-school activities every week? 13．如果你喜欢历史和自然美景,你将会爱上这个地方。(完成译句) ________ you enjoy history and natural beauty, you ________ ________ this place. 【答案】 If will love 【详解】原句关键词为“如果”“将会爱上”。if引导条件状语从句，表示“如果”，遵循主将从现的时态规则，从句使用一般现在时，主句使用一般将来时；will为将来时助动词，后接动词原形；love为动词，表示“爱上”。故填If；will；love。 14．I finish my homework on time. My teacher will praise me. (用if 合并为一句) ____________________________________________________________________________________ 【答案】If I finish my homework on time, my teacher will praise me. 【详解】句意：我按时完成作业。我的老师会表扬我。要求用if合并，可表达为“如果我按时完成作业，我的老师会表扬我”，if引导条件状语从句，遵循“主将从现”原则，从句用一般现在时，主句用一般将来时。故填If I finish my homework on time, my teacher will praise me. 15．You walk so slowly, and maybe you’ll be late for school.  (写出同义句) ________ you ________ walk quickly, you’ll be late for school. 【答案】 If don’t 【详解】句意：你走得太慢了，也许上学要迟到了。根据原句句意可知，其隐含的逻辑条件是“如果不快走，就会迟到”。转换后的句子为“If”引导的条件状语从句，遵循“主将从现”原则，从句应用一般现在时；第二空位于主语you之后，动词walk之前，需填助动词否定形式don’t。故填If；don’t。 四、选词填空 because  if  as long as  in case  unless   16． we keep memorising words, our reading will improve. 17．Green can give you energy, it is the colour of nature. 18． we take action now, more and more animals will be in danger. 19．Come to China and learn more Chinese paper cuttings you have a chance. 20．Please take an umbrella with you it rains on the way. 【答案】16．If/As long as 17．because 18．Unless 19．if/as long as 20．in case 【详解】16．句意：如果/只要我们坚持背单词，阅读就会提高。结合“we keep memorising words, our reading will improve”可知，空处引导条件状语从句，表示满足该条件就会产生后句的结果。if“如果”、as long as“只要”均符合语境，因位于句首，首字母需大写。故填If/As long as. 17．句意：绿色能给你能量，因为它是自然的颜色。前后句存在因果关系，后句“it is the colour of nature”是对前句现象“Green can give you energy”的解释，故选用表示原因的连词because。 18．句意：除非我们现在采取行动，否则越来越多的动物将处于危险中。结合“we take action now, more and more animals will be in danger”可知，空处引导否定条件状语从句。若用if则需搭配否定词don’t，unless意为“除非/如果不”，符合逻辑。因位于句首，首字母需大写。故填Unless。 19．句意：如果/只要有机会，来中国学习更多中国剪纸吧。结合“Come to China and learn more Chinese paper cuttings…you have a chance.”可知，空处引导条件状语从句，表示假设某种情况发生或者只要某种情况发生，if“如果”、as long as“只要”均符合语境。 20．句意：请随身带把伞，以防路上天下雨。结合“Please take an umbrella with you…it rains on the way.”可知，此处表示为了预防某种情况发生而做准备，in case意为“以防，万一”，符合带伞防雨的语境。 五、语法填空 阅读短文，在空白处填入一个适当的词或用括号内所给词的正确形式填空 Paper-cutting is one of China’s most famous folk arts. It has a history of over 1,500 years. 21 , in recent years, fewer young people have learned this skill. Many people think it is old-fashioned and 22 (interest) in it has dropped. A group of high school students from Hangzhou 23 (decide) to change this situation. They started a project 24 (call) “Paper Dreams”. They visited local paper-cutting 25 (artist) and learned the basic skills. Then they held 26 (workshop) at schools and community centres to teach others. 27 more young people join the project, this traditional art will have a bright future. “We believe that 28 (create) can bring new life to old arts,” said the group leader. “It is our duty 29 (protect) these treasures. If we don’t act now, they may 30 (appear) forever.” 【答案】 21．However 22．interest 23．decided 24．called 25．artists 26．workshops 27．If 28．creativity 29．to protect 30．disappear 【导语】本文介绍了中国民间艺术剪纸面临后继无人的困境，以及一群杭州高中生通过“Paper Dreams”项目传承和推广剪纸艺术的故事。 【详解】21．句意：然而，近年来学习这项技能的年轻人越来越少了。前文说剪纸有1500多年的历史，后文说年轻人学得少了，前后是转折关系，空后有逗号，用“However”表示“然而”。 22．句意：许多人认为它过时了，对它的兴趣也下降了。空格前有“is old-fashioned and”，需填名词作并列主语。所给词“interest”意为“兴趣”，作“has dropped”的主语。 23．句意：一群杭州的高中生决定改变这种状况。描述过去发生的事，应用一般过去时。“decide”的过去式为“decided”。 24．句意：他们启动了一个名为“Paper Dreams”的项目。空格在“a project”和“Paper Dreams”之间，需填过去分词作后置定语，表示“被称为”，“call”的过去分词为“called”。 25．句意：他们拜访了当地的剪纸艺术家，学习了基本技巧。“artist”为可数名词，此处指“多位剪纸艺术家”，用复数形式“artists”。 26．句意：然后他们在学校和社区中心举办了工作坊来教其他人。“workshop”为可数名词，“held”后接复数名词表示多场工作坊，用复数“workshops”。 27．句意：如果更多年轻人加入这个项目，这项传统艺术将会有光明的未来。前后分句为条件关系——“如果……就……”，用“If”引导条件状语从句。 28．句意：我们相信创造力能给古老的艺术带来新生命。空格在“that”后，需填名词作主语。“create”的名词形式为“creativity”，意为“创造力”。 29．句意：保护这些瑰宝是我们的责任。固定句型“It’s our duty to do”，意为“做某事是我们的责任”，不定式作真正主语。 30．句意：如果我们现在不行动，它们可能会永远消失。空格在“may”后，需填动词原形，“ If we don’t act now”可知，现在不行动，它们可能会永远消失，所给词“appear”加否定前缀“dis-”构成“disappear”，意为“消失”。 六、阅读理解 (A ) Do you know any special inventions? Here are four smart inventions made by young teenagers. A Safe Window Xiao Ming, a 12-year-old boy from China, invented a safer window for kids. When the window moves up, the part for safeguard will work. It can stop children from falling out of the window if they open it. When the window is pulled (拉) down, the guard will go up. A Smart Homework Collecting Robot Xiao Li, a student from China, invented a smart robot for collecting homework. When a student puts his notebook on the robot, the robot will read his name and collect it. The teachers can connect their phones with the robot, and know if the students hand in their homework. A Special Umbrella Jenny, an 11-year-old girl from America, invented a smart umbrella. It has a handle (手柄) in the shape of a circle (圈) to hold a cup. With it, you can drink easily when you walk on a rainy day. A Solar Flower Pot Arthur, a 9-year-old boy from Britain, invented a solar flower pot. The pot has a special part to get solar energy. It also has three wheels, so the pot can run around the garden and look for sunlight by itself. In this way, the flowers can get enough sunlight. 31．Which invention can help flowers get enough sunlight? A． B． C． D． 32．Which invention is mainly designed to help teachers with their work? A．The safe window. B．The special umbrella. C．The smart homework Collecting Robot. D．The solar flower pot. 33．How many of the four inventions were invented in China? A．One. B．Two. C．Three. D．Four. 34．Which of the following is true? A．The smart umbrella has a square handle. B．The safe window is used to protect the adults. C．The solar flower pot can move around by itself. D．The smart robot can help students do homework. 35．Where is this passage most likely to be found? A．In a science magazine. B．In a history textbook. C．In a storybook. D．In a travel guide. 【答案】31．B 32．C 33．B 34．C 35．A 【导语】本文介绍了4项由青少年发明的智能小发明，分别是安全窗户、智能作业收集机器人、特殊雨伞、太阳能花盆。 【详解】31．根据原文“Arthur, a 9‑year‑old boy from Britain, invented a solar flower pot… the pot can run around the garden and look for sunlight by itself. In this way, the flowers can get enough sunlight.”，太阳能花盆可以帮助花卉获得充足阳光。 32．根据原文“A Smart Homework Collecting Robot… The teachers can connect their phones with the robot, and know if the students hand in their homework.”，智能作业收集机器人能够协助老师完成作业收缴工作 33．小明的安全窗户、小李的智能作业机器人均来自中国，一共2项发明来自中国。 34．根据原文“the pot can run around the garden and look for sunlight by itself”，太阳能花盆可以自主移动。 35．全文介绍青少年科创发明，属于科学类文章，最有可能出现在科学杂志中。 (B ) May 4th is an important day in China. It’s called Chinese Youth Day. It has a history of over 100 years. But do you know about International Youth Day? International Youth Day falls on August 12th every year. It’s a day to celebrate and support young people. It is a chance to learn about the successes and failures young people have. It helps the world notice how important it is to listen to young people’s voices. Young people are the seeds that grow into beautiful flowers or tall trees. They have fresh ideas ,amazing energy, and special abilities to make the world a better place. Celebrating young people reminds us they are the future and have the power to make something better. It encourages young people to dream big, work hard, make a difference, and step into a brighter future. On that day, young people from all over the world share their stories, experiences and ideas.They talk about what they hope for the future. There are also fun activities like games, music and dancing. It’s a time for young people to relax. Every year, International Youth Day has a different theme. It means that it focuses on a different topic connected with young people each year. For example, it’s about peace and education this year, while it may be about health or the environment next year. It’s a chance for young people to learn about these topics and think of ways to make a difference. In a word,International Youth Day reminds us that young people are not just the future but also the present drivers of great changes. By supporting the youth, we can create a better world. 36．What’s the main idea of Paragraph 3? A．The meaning of International Youth Day. B．The roles of world young people. C．The activities on International Youth Day. D．The theme of International Youth Day. 37．What do the young people do on International Youth Day? ①Share something meaningful.    ②Talk about the future. ③Do some activities to relax.    ④Deal with something difficult. A．①②③ B．①②④ C．①③④ D．②③④ 38．What does the underlined phrase “focuses on” mean? A．Depend on. B．Give up. C．Look forward to. D．Pay attention to. 39．What’s the best title for this passage? A．The Ways to Celebrate Young People B．The Ways to Support Young People C．International Youth Day D．The Future of Young People 40．Which is the right structure of this passage? A．①/②③④⑤/⑥ B．①/②/③④⑤⑥ C．①/②③④⑤⑥ D．①②③④⑤/⑥ 【答案】36．B 37．A 38．D 39．C 40．A 【导语】本文是一篇说明文，先由中国五四青年节引出核心对象国际青年日，依次介绍国际青年日的日期与设立初衷、青年人自身的价值与作用、节日当天的特色活动、每年各不相同的节日主题，最后总结青年是当下推动巨大变革的主力军。 【详解】36．根据第三段内容“Young people are the seeds... They have fresh ideas... they are the future”可知，本段主要将年轻人比作种子，强调他们是未来以及拥有让世界变好的能力，重点阐述了年轻人在世界中扮演的重要角色。 37．根据第四段“young people... share their stories, experiences and ideas. They talk about what they hope for the future. There are also fun activities... It's a time for young people to relax.”可知，分享故事经历对应①，畅谈未来期许对应②，趣味休闲活动对应③；文中完全没有提及“处理困难的事”相关内容，④无原文依据，因此选①②③。 38．根据原文句子“It means that it focuses on a different topic connected with young people each year. For example, it’s about peace and education this year, while it may be about health or the environment next year.”可知，本句表达每年国际青年日都会围绕、关注一个全新青年相关话题，focus on含义为聚焦、关注，与Pay attention to同义。 39．通读全文可知，文章依次介绍了国际青年日的日期、设立意义、年轻人的角色、庆祝活动以及年度主题等信息，核心主题始终是“国际青年日”。因此选项 C 最适合作为标题。 40．文章第一段通过中国青年日引出国际青年日的话题；第二至五段分别从时间意义、青年角色、活动内容、年度主题四个方面详细介绍；最后一段总结国际青年日的价值。结构为“引出话题—详细介绍—总结”，即①/②③④⑤/⑥。 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 1 Teenagers today Period3 Understanding ideas（Grammar）分层作业 学校:___________姓名：___________班级：___________考号：___________ 一、单项选择 1．We must take action now, ________ some old folk arts will disappear soon. A．because B．if C．or D．when 2．________ you keep practicing puppet shows, you will do better soon. A．Because B．If C．Though D．Before 3．You can’t pass the exam ________ you work harder from now on. A．if B．because C．unless D．when 4．She fell in love with puppetry again ________ she watched her grandpa’s teacher’s wonderful performance. A．if B．so C．because D．unless 5．If our school ________ a folk art club next term, I ________ a member. A．sets up; will be B．will set up; am C．sets up; am D．will set up; will be 二、单词拼写 6．It is our ________ (duty) to protect our ________ (tradition) art. 7．If you ________ (move) the puppet’s fingers, it __________ (come) to life. 8．If you ________ (join) us to protect folk arts, you __________ (make) a difference. 9．Art becomes popular ________ more young people join in it. 10．Her love for puppetry ________ (grow) again because she ________ (see) the great show. 三、完成句子 11．They are interested in the amazing puppet show.（改为否定句） ____________________________________________________________ 12．She takes part in after-school activities every week.（改为一般疑问句） ____________________________________________________________ 13．如果你喜欢历史和自然美景,你将会爱上这个地方。(完成译句) ________ you enjoy history and natural beauty, you ________ ________ this place. 14．I finish my homework on time. My teacher will praise me. (用if 合并为一句) ____________________________________________________________________________________ 15．You walk so slowly, and maybe you’ll be late for school.  (写出同义句) ________ you ________ walk quickly, you’ll be late for school. 四、选词填空 because  if  as long as  in case  unless   16． we keep memorising words, our reading will improve. 17．Green can give you energy, it is the colour of nature. 18． we take action now, more and more animals will be in danger. 19．Come to China and learn more Chinese paper cuttings you have a chance. 20．Please take an umbrella with you it rains on the way. 五、语法填空 阅读短文，在空白处填入一个适当的词或用括号内所给词的正确形式填空 Paper-cutting is one of China’s most famous folk arts. It has a history of over 1,500 years. 21 , in recent years, fewer young people have learned this skill. Many people think it is old-fashioned and 22 (interest) in it has dropped. A group of high school students from Hangzhou 23 (decide) to change this situation. They started a project 24 (call) “Paper Dreams”. They visited local paper-cutting 25 (artist) and learned the basic skills. Then they held 26 (workshop) at schools and community centres to teach others. 27 more young people join the project, this traditional art will have a bright future. “We believe that 28 (create) can bring new life to old arts,” said the group leader. “It is our duty 29 (protect) these treasures. If we don’t act now, they may 30 (appear) forever.” 六、阅读理解 (A ) Do you know any special inventions? Here are four smart inventions made by young teenagers. A Safe Window Xiao Ming, a 12-year-old boy from China, invented a safer window for kids. When the window moves up, the part for safeguard will work. It can stop children from falling out of the window if they open it. When the window is pulled (拉) down, the guard will go up. A Smart Homework Collecting Robot Xiao Li, a student from China, invented a smart robot for collecting homework. When a student puts his notebook on the robot, the robot will read his name and collect it. The teachers can connect their phones with the robot, and know if the students hand in their homework. A Special Umbrella Jenny, an 11-year-old girl from America, invented a smart umbrella. It has a handle (手柄) in the shape of a circle (圈) to hold a cup. With it, you can drink easily when you walk on a rainy day. A Solar Flower Pot Arthur, a 9-year-old boy from Britain, invented a solar flower pot. The pot has a special part to get solar energy. It also has three wheels, so the pot can run around the garden and look for sunlight by itself. In this way, the flowers can get enough sunlight. 31．Which invention can help flowers get enough sunlight? A． B． C． D． 32．Which invention is mainly designed to help teachers with their work? A．The safe window. B．The special umbrella. C．The smart homework Collecting Robot. D．The solar flower pot. 33．How many of the four inventions were invented in China? A．One. B．Two. C．Three. D．Four. 34．Which of the following is true? A．The smart umbrella has a square handle. B．The safe window is used to protect the adults. C．The solar flower pot can move around by itself. D．The smart robot can help students do homework. 35．Where is this passage most likely to be found? A．In a science magazine. B．In a history textbook. C．In a storybook. D．In a travel guide. (B ) May 4th is an important day in China. It’s called Chinese Youth Day. It has a history of over 100 years. But do you know about International Youth Day? International Youth Day falls on August 12th every year. It’s a day to celebrate and support young people. It is a chance to learn about the successes and failures young people have. It helps the world notice how important it is to listen to young people’s voices. Young people are the seeds that grow into beautiful flowers or tall trees. They have fresh ideas ,amazing energy, and special abilities to make the world a better place. Celebrating young people reminds us they are the future and have the power to make something better. It encourages young people to dream big, work hard, make a difference, and step into a brighter future. On that day, young people from all over the world share their stories, experiences and ideas.They talk about what they hope for the future. There are also fun activities like games, music and dancing. It’s a time for young people to relax. Every year, International Youth Day has a different theme. It means that it focuses on a different topic connected with young people each year. For example, it’s about peace and education this year, while it may be about health or the environment next year. It’s a chance for young people to learn about these topics and think of ways to make a difference. In a word,International Youth Day reminds us that young people are not just the future but also the present drivers of great changes. By supporting the youth, we can create a better world. 36．What’s the main idea of Paragraph 3? A．The meaning of International Youth Day. B．The roles of world young people. C．The activities on International Youth Day. D．The theme of International Youth Day. 37．What do the young people do on International Youth Day? ①Share something meaningful.    ②Talk about the future. ③Do some activities to relax.    ④Deal with something difficult. A．①②③ B．①②④ C．①③④ D．②③④ 38．What does the underlined phrase “focuses on” mean? A．Depend on. B．Give up. C．Look forward to. D．Pay attention to. 39．What’s the best title for this passage? A．The Ways to Celebrate Young People B．The Ways to Support Young People C．International Youth Day D．The Future of Young People 40．Which is the right structure of this passage? A．①/②③④⑤/⑥ B．①/②/③④⑤⑥ C．①/②③④⑤⑥ D．①②③④⑤/⑥ 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 $