Unit 5 Music speaks 语法Grammar 原因状语从句-2026-2027学年九年级英语上册单元练习（译林版）

**基本信息** 本单元卷聚焦初中英语Unit 5“Music speaks”主题，以原因状语从句为核心，通过地方文化（如安徽习俗、无锡小笼包）和生活情境命题，适配单元复习，强化语言运用与文化意识。 **题型特征** |题型|题量/分值|知识覆盖|命题特色| |----|-----------|----------|----------| |单项选择|30题/60分|because/since/as/for等引导词辨析|结合Hefei无人机产业、环保等情境，考查语境中语法运用| |完成句子|10题/40分|句子合并、同义转换（如because与because of转换）|融入传统习俗、绿色生活等主题，体现思维层次性|

班级 姓名 学号 分数 Unit 5 Music speaks 原因状语从句 （时间：60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．________ Hefei’s drone industry develops fast, it has won wide attention across China. A．Although B．Because C．While D．Unless 【答案】B 【详解】句意：因为合肥的无人机产业发展迅速，它在全国范围内赢得了广泛关注。 Although虽然；Because因为；While然而/当……时；Unless除非。根据题干“develops fast”与“has won wide attention”可知，发展快是赢得关注的原因，应用Because引导原因状语从句，应填Because。 2．—Yes, Mr Smith, everybody is here. —________ everybody is here, let’s begin our class. A．Because B．Whether C．When D．Since 【答案】D 【详解】句意：——是的，史密斯先生，大家都到了。——既然大家都到了，让我们开始上课吧。 Because因为；Whether是否；When当……时候；Since既然。根据上文“Yes, Mr Smith, everybody is here.”可知，人员到齐是既定事实，此处表示基于已知事实提出建议，Since符合语境，意为“既然”。 3．—Let’s share these useful materials with each other. —Good idea. ________ we are friends, we can learn from each other. A．As B．Unless C．Though 【答案】A 【详解】句意：——让我们彼此分享这些有用的资料吧。——好主意。因为我们是朋友，我们可以互相学习。 As因为；Unless除非；Though虽然。根据“Good idea.”可知说话人同意分享资料，后半句“we are friends”是“we can learn from each other”的原因，前后构成因果关系。应填As，引导原因状语从句。 4．My brother Peter wants to join the art club ________ he is interested in painting. A．so that B．because C．as soon as D．until 【答案】B 【详解】句意：我的哥哥彼得想加入美术俱乐部，因为他对绘画感兴趣。   so that以便；because因为；as soon as一……就……；until直到。根据前句“My brother Peter wants to join the art club”和后句“he is interested in painting”可知，后句是前句的原因，即“想加入美术俱乐部”的原因是“对绘画感兴趣”，此处表示原因，应填because。 5．—Why do you keep on reading traditional culture books? —I do it ________ I want to know more about local Anhui customs. A．so that B．because C．though D．once 【答案】B 【详解】句意：——你为什么坚持读传统文化书籍？——因为我想了解更多安徽本土民俗。 so that为了；because因为；though虽然；once一旦。根据答语中“I want to know more about local Anhui customs”可知，这正是坚持阅读传统文化书籍的原因，回答原因用because。 6．— It is said that Changzhou Damagao is famous and delicious. — ________ we are here, why not try some? A．Since B．Unless C．Although D．Whenever 【答案】A 【详解】句意：——据说常州大麻糕很有名且美味。——既然我们在这里，为什么不尝尝呢？ Since既然；由于；Unless除非；Although虽然；Whenever无论何时。句中“why not try some?”是提出建议，结合“we are here”，说明此处表示“既然我们在这儿”，表示原因或理由，since语境。 7．Talking to pets can help you let go of problems ________ you give them your full attention. A．unless B．as C．as if D．even though 【答案】B 【详解】句意：和宠物聊天能帮助你放下烦恼，因为你把全部注意力都放在了这件事上。 unless除非；as因为；as if似乎；even though尽管。根据“Talking to pets can help you let go of problems ... you give them your full attention”可知，空格后是前文描述情况成立的原因，应填as。 8．—Why won’t the machine work? —________ its parts are broken. A．As B．Since C．Because D．For 【答案】C 【详解】句意：——为什么机器不工作？——因为它的零件坏了。 As引导原因状语从句时，语气较弱，多用于已知的、显而易见的原因，不直接回答why问句；Since语气比as稍强，但同样侧重“既然”，用于双方都知道的原因，不直接回答why问句；Because专门用来回答why引导的问句，语气最强，直接说明原因；For是并列连词，引导的分句通常放在主句后，补充说明理由，不能单独放在句首回答why问句。问句“Why won’t the machine work?”是在询问直接原因，要用Because回答。 9．________ time is limited, we’ll finish our imagination sharing in ten minutes. A．Though B．Since C．After D．If 【答案】B 【详解】句意：既然时间有限，我们将在十分钟内完成我们的想象力分享。 Though表让步，虽然/尽管；Since表已知原因，既然；After表时间先后，在……之后；If表条件，如果。根据句意“时间有限”是已知前提，应填Since。 10．He cried ________ he failed the exam. A．because B．because of C．for D．with 【答案】A 【详解】句意：他哭了，因为他考试不及格。 because因为；because of因为；for因为；with和、带有。结合句子结构可知，空格后为完整主谓句子，需用连词because引导原因状语从句；because of后接名词短语；for表原因前面加逗号，不能直接放在主句后解释直接原因；with不表原因，不符合语境。 11．________ poor eyesight has become a common problem among teenagers, schools should cut down unnecessary screen-based homework. A．Although B．Since C．Unless D．If 【答案】B 【详解】句意：由于视力差已经成为青少年中的一个普遍问题，学校应该减少不必要的基于屏幕的家庭作业。 Although虽然；Since由于，既然；Unless除非；If如果。前后句为因果关系，青少年视力差是减少屏幕作业的原因，因此应用Since引导原因状语从句。 12．More and more people choose green travel ________ it can reduce air pollution. A．but B．or C．until D．because 【答案】D 【详解】句意：越来越多的人选择绿色出行，因为它可以减少空气污染。 but但是；or或者；until直到；because因为。根据“it can reduce air pollution”可知，减少空气污染是选择绿色出行的原因，前后句是因果关系，应用because引导原因状语从句。 13．— Mike is my best friend, but he always copies my homework. What should I do? — ________ he’s your best friend, you should tell him that copying others’ homework is wrong. A．Since B．Until C．When D．Or 【答案】A 【详解】句意：——迈克是我最好的朋友，但他总是抄我的作业，我该怎么办？——既然他是你最好的朋友，你应该告诉他抄别人的作业是不对的。 Since既然/因为；Until直到；When当……时候；Or或者/否则。根据语境，前后句存在因果关系，前半句是原因，后半句是建议，“since”可用于引导原因状语从句，符合语境。 14．He didn’t go to school ________ he was ill. A．because B．so C．but 【答案】A 【详解】句意：他没有去上学因为他病了。 because因为；so所以；but但是。根据句子逻辑，后半句“他病了”是前半句“没有去上学”的原因，因此应选用表示原因的连词because。 15．I like the school ________ the teachers here are very nice. A．but B．or C．because D．so 【答案】C 【详解】句意：我喜欢这所学校，因为这里的老师非常好。 but但是；or或者；because因为；so所以。根据“the teachers here are very nice”可知，后半句是前半句喜欢学校的原因，前后句构成因果关系，且后句表原因，应填 because。 16．The beautiful summer vacation after the final exam is coming soon. We feel so excited ________ we have looked forward to it for a long time. A．because B．that C．when 【答案】A 【详解】句意：期末考试后的美好暑假很快就要来了。我们感到非常兴奋，因为我们已经期待它很久了。 because因为；that那个/引导词；when当……时候。根据“We feel so excited”与“we have looked forward to it for a long time”之间的逻辑关系可知，后句表达了前句感到兴奋的原因，因此用because引导原因状语从句。 17．—It’s widely known that xiaolongbao is a local delicacy. —Well, ________ we have been in Wuxi, it would be a shame to leave without tasting it. A．though B．unless C．since D．until 【答案】C 【详解】句意：——众所周知，小笼包是当地美食。——嗯，既然我们已经在无锡了，如果不尝尝就离开会很遗憾。 though虽然；unless除非；since既然；until直到。根据“it would be a shame to leave without tasting it”可知，说话人认为应该尝尝小笼包，原因是“we have been in Wuxi”，前后是因果关系，用since表原因。 18．We are proud of our country ________ Chinese astronauts have successfully grown fresh vegetables in the space station. A．because B．unless C．though D．until 【答案】A 【详解】句意：我们为我们的国家感到骄傲，因为中国宇航员已经在空间站成功种植了新鲜蔬菜。 because因为；unless除非；though虽然；until直到。根据“We are proud of our country”与“Chinese astronauts have successfully grown fresh vegetables in the space station”，前后构成因果关系，后句是前句的原因。故选because。 19．________ we live together, we should share the housework to have a comfortable home. A．If B．Since C．Though D．Unless 【答案】B 【详解】句意：既然我们住在一起，为了拥有一个舒适的家，我们应该分担家务。 If如果；Since既然；由于；Though虽然；Unless除非。根据“we should share the housework”可知，前后句存在因果逻辑，因为住在一起所以应分担家务，Since引导原因状语从句符合语境。 20．Some local dialects (方言) in Fujian are gradually disappearing ________ they are less used in daily life. A．though B．if C．because 【答案】C 【详解】句意：福建的一些当地方言正在逐渐消失，因为它们在日常生活中较少被使用。 though虽然；if如果；because因为。根据“they are less used in daily life”可知，后半句是前半句方言消失的原因，前后构成因果关系，所以用because引导原因状语从句。 21．________ Zhang Xue kept on improving his motorcycles for over 20 years and never gave up, his team finally won the WSBK championship (冠军) and made history. A．Although B．Because C．If D．So 【答案】B 【详解】句意：因为张雪坚持改进他的摩托车超过20年且从未放弃，他的团队最终赢得了WSBK冠军并创造了历史。   Although虽然；Because因为；If如果；So所以。根据句意可知，“坚持改进摩托车20年且从未放弃”是原因，“赢得冠军并创造历史”是结果，前后构成因果关系，前句为原因，应填Because。 22．Many people like shopping online at home ________ it’s very easy and saves much time. A．though B．because C．so D．after 【答案】B 【详解】句意：很多人喜欢在家网购，因为它非常便捷且节省时间。 though虽然；because因为；so所以；after在……之后。“it’s very easy and saves much time”是“like shopping online”的原因，应用because引导原因状语从句。应填because。 23．Many young people return to their hometown ________ they want to stay with their families and build their hometown. A．so B．but C．because 【答案】C 【详解】句意：许多年轻人回到他们的家乡，因为他们想和家人待在一起并建设他们的家乡。 so所以；but但是；because因为。根据“they want to stay with their families and build their hometown”可知，后半句解释了年轻人回家乡的原因，前后句是因果关系。应填because。 24．Celina didn’t buy the dictionary yesterday ________ her aunt would give her one. A．until B．because C．if D．before 【答案】B 【详解】句意：Celina昨天没有买那本字典，因为她姑姑将给她一本。 until直到……为止；because因为；if如果；before在……之前。“her aunt would give her one”是“Celina didn’t buy the dictionary yesterday”的原因，because后接原因，引导原因状语从句。 25．________ more than 80% of the villagers now have access to clean tap water, the local government is planning a new recycling system. A．Unless B．Though C．Since D．Until 【答案】C 【详解】句意：既然超过80%的村民现在能用上干净的自来水，当地政府正在计划一个新的回收系统。 Unless除非；Though虽然；Since既然，因为；Until直到。根据句意可知，前半句“村民用上自来水”是后半句“政府计划新系统”的原因或背景，前后句构成因果逻辑，Since符合语境。 26．I go to school on foot every day ________ it’s near my house. A．so B．but C．because D．until 【答案】C 【详解】句意：我每天步行去上学，因为它离我家很近。 so所以；but但是；because因为；until直到。根据句意可知，后半句“离我家近”是前半句“步行上学”的原因，because用于引导原因状语从句，符合语境。应填because。 27．________ you have finished your homework, you can go out to relax for a while. A．Unless B．Since C．Though D．Until 【答案】B 【详解】句意：既然你已经完成了作业，你可以出去放松一会儿。 Unless除非；Since既然；Though虽然；Until直到。根据“you have finished your homework, you can go out to relax for a while.”可知，前后句是因果关系，表示“既然”完成了作业，就可以出去放松，应填Since。 28．Many teens are interested in traditional culture ________ they think it is meaningful. A．so B．or C．but D．because 【答案】D 【详解】句意：许多青少年对传统文化感兴趣，因为他们认为它是有意义的。 so所以；or或者；but但是；because因为。根据前后句逻辑关系可知，后句“they think it is meaningful”是前句“Many teens are interested in traditional culture”的原因，应用表示原因的连词because。 29．Linda felt very proud ________ she won the first prize in the speech competition. A．although B．because C．unless 【答案】B 【详解】句意：琳达感到非常骄傲，因为她在演讲比赛中获得了一等奖。 although尽管；because因为；unless除非。根据句意可知，“获得一等奖”是“感到骄傲”的原因，前后句构成因果关系，因此用because引导原因状语从句。 30．Museums are becoming more popular ________ people want to learn more about culture and history. A．as B．unless C．until D．although 【答案】A 【详解】句意：博物馆越来越受欢迎，因为人们想了解更多的文化和历史。 as因为；unless除非；until直到；although尽管。根据“Museums are becoming more popular”和“people want to learn more about culture and history”可知，前后句为因果关系，应填as。 二、完成句子(本大题共10小题，每小题4分，共40分) 31．因为Jim犯的错误比其他任何一个学生少，所以老师表扬了他。 The teacher praised Jim ___________________________. 【答案】because he made fewer mistakes than any other student 【详解】because“因为”，引导原因状语从句；he“他”，作主语，指代Jim；make fewer mistakes“犯更少的错误”，fewer修饰可数名词复数；than“比”；any other student“其他任何一个学生”，any other修饰可数名词单数；根据“praised”可知，时态是一般过去时，谓语动词make变为过去式made。故填because he made fewer mistakes than any other student。 32．You are not interested. I won’t force you. (用适当的连词连接两个句子) → ____________________________ 【答案】Since you are not interested, I won’t force you. 【详解】句意：你不感兴趣。我不会强迫你。前后句存在因果关系。可用since表示原因，表达为“既然你不感兴趣，我就不会强迫你。”句首首字母要大写。 33．Everyone knows the rule. We needn’t explain it again.（用since合并两个简单句） ________________________________________________________________ 【答案】Since everyone knows the rule, we needn’t explain it again. 【详解】句意：所有人都知道这条规则，我们不必再解释一遍。since做连词意为“既然，由于”，引导已知原因的状语从句；合并句子时，将表原因的句子放在since之后构成原因从句，剩余内容作主句，句首单词首字母大写，即Since everyone knows the rule, we needn’t explain it again. 34．All the students prepare well. The speech will go smoothly.（用as合并两个简单句） ________________________________________________________________ 【答案】As all the students prepare well, the speech will go smoothly. 【详解】句意：所有学生都准备得很好。演讲将会进行得很顺利。原句中“All the students prepare well”是“The speech will go smoothly”的原因，两句之间存在因果关系。在连接句子时，可将as置于句首引导原因状语从句，主句首字母需改写为小写，且主从句之间需用逗号隔开。故填As all the students prepare well, the speech will go smoothly. 35．It is raining heavily. We put off the activity of imagining future.（用as合并两个简单句） ________________________________________________________________ 【答案】As it is raining heavily, we put off the activity of imagining future. 【详解】句意：雨下得很大，我们推迟了畅想未来的活动。第一句It is raining heavily.（雨下得很大）交代客观原因； 第二句We put off the activity of imagining future.（我们推迟了畅想未来的活动）交代结果行为。as在这里是连词，引导原因状语从句，表示“由于、因为”，常用来引出显而易见的原因。把原因句It is raining heavily放在as之后，构成从句As it is raining heavily；从句放句首时，从句末尾必须加逗号，再连接主句。 36．既然你已经在这儿了，何不多待两天？ __________ you are here, why not stay for two more days? 【答案】Since/As 【详解】原句中“既然”是关键词。since和as都可以引导原因状语从句，表达“既然”的含义，都用来指代显而易见、对话双方共知的原因。设空处位于句子开头，首字母必须大写。故填Since/As。 37．The animals are in danger. Their homes are being destroyed. (用 for 连接句子) ____________________________________________________ 【答案】The animals are in danger, for their homes are being destroyed. 【详解】句意：这些动物正处于危险之中。它们的家园正在被破坏。for作并列连词时意为“因为”，用于补充说明原因，通常位于结果句之后。连接两句时，for前需加逗号，原第二句首字母T改为小写t，句末保留一个句点。 38．We should save electricity. It helps reduce greenhouse gas emissions. (用for连接句子) ____________________________________________________ 【答案】We should save electricity, for it helps reduce greenhouse gas emissions. 【详解】句意：我们应该节约用电。这有助于减少温室气体排放。题干要求用for连接句子，for为表原因的并列连词，用于衔接前后两个分句，分句之间需用逗号隔开，句子时态和语序保持不变。故改写为We should save electricity, for it helps reduce greenhouse gas emissions. 39．I can't get to school on time because it snows heavily. (改为同义句) I can't get to school on time ________ ________ the heavy snow. 【答案】 because of 【详解】原句：因为雪下得很大，我不能按时到校。原句中“because”引导原因状语从句，后接完整句子；其同义表达为“because of”，后接名词、名词短语或代词。句中 “the heavy snow”是名词短语，因此用“because of”。 40．I didn’t buy the sci-fi book. It was too expensive.(用because合并两个简单句) ________________________________________________________________ 【答案】I didn’t buy the sci-fi book because it was too expensive. 【详解】句意：我没有买那本科幻书，因为它太贵了。根据题意需要用“because”连接两句。原句中“It was too expensive.”是“I didn’t buy the sci-fi book.”的原因。故填I didn’t buy the sci-fi book because it was too expensive. 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 $ 班级 姓名 学号 分数 Unit 5 Music speaks 原因状语从句 （时间：60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．________ Hefei’s drone industry develops fast, it has won wide attention across China. A．Although B．Because C．While D．Unless 2．—Yes, Mr Smith, everybody is here. —________ everybody is here, let’s begin our class. A．Because B．Whether C．When D．Since 3．—Let’s share these useful materials with each other. —Good idea. ________ we are friends, we can learn from each other. A．As B．Unless C．Though 4．My brother Peter wants to join the art club ________ he is interested in painting. A．so that B．because C．as soon as D．until 5．—Why do you keep on reading traditional culture books? —I do it ________ I want to know more about local Anhui customs. A．so that B．because C．though D．once 6．— It is said that Changzhou Damagao is famous and delicious. — ________ we are here, why not try some? A．Since B．Unless C．Although D．Whenever 7．Talking to pets can help you let go of problems ________ you give them your full attention. A．unless B．as C．as if D．even though 8．—Why won’t the machine work? —________ its parts are broken. A．As B．Since C．Because D．For 9．________ time is limited, we’ll finish our imagination sharing in ten minutes. A．Though B．Since C．After D．If 10．He cried ________ he failed the exam. A．because B．because of C．for D．with 11．________ poor eyesight has become a common problem among teenagers, schools should cut down unnecessary screen-based homework. A．Although B．Since C．Unless D．If 12．More and more people choose green travel ________ it can reduce air pollution. A．but B．or C．until D．because 13．— Mike is my best friend, but he always copies my homework. What should I do? — ________ he’s your best friend, you should tell him that copying others’ homework is wrong. A．Since B．Until C．When D．Or 14．He didn’t go to school ________ he was ill. A．because B．so C．but 15．I like the school ________ the teachers here are very nice. A．but B．or C．because D．so 16．The beautiful summer vacation after the final exam is coming soon. We feel so excited ________ we have looked forward to it for a long time. A．because B．that C．when 17．—It’s widely known that xiaolongbao is a local delicacy. —Well, ________ we have been in Wuxi, it would be a shame to leave without tasting it. A．though B．unless C．since D．until 18．We are proud of our country ________ Chinese astronauts have successfully grown fresh vegetables in the space station. A．because B．unless C．though D．until 19．________ we live together, we should share the housework to have a comfortable home. A．If B．Since C．Though D．Unless 20．Some local dialects (方言) in Fujian are gradually disappearing ________ they are less used in daily life. A．though B．if C．because 21．________ Zhang Xue kept on improving his motorcycles for over 20 years and never gave up, his team finally won the WSBK championship (冠军) and made history. A．Although B．Because C．If D．So 22．Many people like shopping online at home ________ it’s very easy and saves much time. A．though B．because C．so D．after 23．Many young people return to their hometown ________ they want to stay with their families and build their hometown. A．so B．but C．because 24．Celina didn’t buy the dictionary yesterday ________ her aunt would give her one. A．until B．because C．if D．before 25．________ more than 80% of the villagers now have access to clean tap water, the local government is planning a new recycling system. A．Unless B．Though C．Since D．Until 26．I go to school on foot every day ________ it’s near my house. A．so B．but C．because D．until 27．________ you have finished your homework, you can go out to relax for a while. A．Unless B．Since C．Though D．Until 28．Many teens are interested in traditional culture ________ they think it is meaningful. A．so B．or C．but D．because 29．Linda felt very proud ________ she won the first prize in the speech competition. A．although B．because C．unless 30．Museums are becoming more popular ________ people want to learn more about culture and history. A．as B．unless C．until D．although 二、完成句子(本大题共10小题，每小题4分，共40分) 31．因为Jim犯的错误比其他任何一个学生少，所以老师表扬了他。 The teacher praised Jim ___________________________. 32．You are not interested. I won’t force you. (用适当的连词连接两个句子) → ____________________________ 33．Everyone knows the rule. We needn’t explain it again.（用since合并两个简单句） ________________________________________________________________ 34．All the students prepare well. The speech will go smoothly.（用as合并两个简单句） ________________________________________________________________ 35．It is raining heavily. We put off the activity of imagining future.（用as合并两个简单句） ________________________________________________________________ 36．既然你已经在这儿了，何不多待两天？ __________ you are here, why not stay for two more days? 37．The animals are in danger. Their homes are being destroyed. (用 for 连接句子) ____________________________________________________ 38．We should save electricity. It helps reduce greenhouse gas emissions. (用for连接句子) ____________________________________________________ 39．I can't get to school on time because it snows heavily. (改为同义句) I can't get to school on time ________ ________ the heavy snow. 40．I didn’t buy the sci-fi book. It was too expensive.(用because合并两个简单句) ________________________________________________________________ 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 $