Module 3 Heroes 语法Grammar 原因状语从句-2025-2026学年九年级英语上册模块语法精讲精练（外研版）

班级 姓名 学号 分数 Module 3 Heroes 原因状语从句 （时间：60分钟，满分：100分） 原因状语从句表原因，常见的引导词有： because（因为），since（既然），as（既然），for（因为） 1.because引导的原因状语从句一般放于主句之后，because表示直接原因，语气最强，回答why引导的疑问句必须使用because。 I do it because I like it..——Why didn’t he come yesterday?——Because he had something important to do. 注意 “not……because” 结构中的not否定的是because引导的整个从句， 例如：The country is not strong because it is large.国强不在大。 2． Since引导的原因状语从句一般位于主句之前，表示已知的、显然的理由。通常被翻译成“既然”，较为正式，语气比because弱。 Since you are free today, you had better help me with my mathematics.     既然今天你休息，你最好帮我补习数学。 3.as引导原因状语从句时表示附带说明的“双方已知的原因”，语气比since弱，较正式，位置较灵活，常放于主句之前。 As it is raining, you’d better take a taxi.     既然在下雨，你最好乘出租汽车。 4. for引导的原因状语从句并不说明主句行为发生的直接原因，只提供一些辅助性的补充说明，for引导的原因状语从句只能放于主句之后并且必须用逗号将其与主句隔开。 He could not have seen me, for I was not there. 他不可能见过我，因为我不在那里。 It’s a long time since we met last. 好久没见面了。 一、单项选择(本大题共30小题，每小题2分，共60分) 1．—My grandfather still reads books every day ________ he thinks learning is a journey that never ends. —He sets a good example for us. A．before B．unless C．though D．because 【答案】D 【详解】句意：——我的祖父仍然每天读书，因为他认为学习是一段永远不会结束的旅程。   ——他为我们树立了一个好榜样。     考查连词辨析。before在……之前；unless除非；though尽管；because因为。根据“reads books every day ”和“he thinks learning is a journey that never ends.”可知，前后句是因果关系，“认为学习是永远不会结束的旅程”是“每天读书”的原因，因此应用because连接。故选D。 2．Zhaxi didn’t go to school yesterday ________ he was ill. A．because B．because of C．if D．so 【答案】A 【详解】句意：扎西昨天没去上学，因为他生病了。 考查原因状语从句。because因为，连词；because of因为，介词短语；if如果；so所以。根据“he was ill”可知，后句是前句的原因，需要用because引导原因状语从句。故选A。 3．The course of life never runs smoothly ________ it is full of ups and downs. A．because B．though C．if D．unless 【答案】A 【详解】句意：人生的道路从来不会一帆风顺，因为它充满起伏。 考查连词辨析。because因为；though尽管；if如果；unless除非。根据“The course of life never runs smoothly...it is full of ups and downs.”可知，此处表原因。故选A。 4．Please wear glasses when doing the experiment, ________ your eyes may get hurt. A．since B．although C．because D．unless 【答案】C 【详解】句意：做实验时请戴上眼镜，因为可能会伤到眼睛。 考查连词辨析。since自从；although虽然；because因为；unless除非。根据“Please wear glasses when doing the experiment, …your eyes may get hurt.”可知，后句是前句的原因，应用because引导原因状语从句。故选C。 5．I love the song What the World Has Given Me ________ it makes me feel peace and warmth. A．because B．although C．until D．so 【答案】A 【详解】句意：我喜欢《世界赠与我》这首歌。它让我感觉到平静和温暖。 考查连词辨析。because因为，表原因；although尽管，虽然；until直到；so所以，表结果。根据前后句关系可知，后句表达原因。故选A。 6．Everyone wants to make friends with Andy, ________ he is very friendly. A．but B．because C．so D．or 【答案】B 【详解】句意：每个人都想和安迪交朋友，因为他很友好。 考查连词辨析。but但；because因为；so所以；or或。根据“Everyone wants to make friends with Andy… he is very friendly.”的语境可知，此处表示因果关系，前果后因，B项符合。故选B。 7．______ we are now in the old town, why not taste the local food here. A．Though B．Since C．Before D．Unless 【答案】B 【详解】句意：既然现在我们在老城区，为什么不尝尝这里的当地食物。 考查状语从句。Though虽然，尽管；Since既然，由于；Before在……之前；Unless如果不。根据句意可知，前半句表示我们来了，后半句表示我们要试一试，前后是因果关系。故选B。 8．It’s important to keep learning about new ideas and technology ________ the world changes fast. A．so B．or C．unless D．since 【答案】D 【详解】句意：不断学习新的想法和技术很重要，因为世界变化很快。 考查连词辨析。so因此；or或者；unless除非；since因为。根据语境可知，“不断学习新的想法和技术”和“世界变化很快”之间是因果关系，且后半句是前半句的原因，应该用since引导原因状语从句。故选D。 9．________ the typhoon is gone, why not take a walk at the seaside? A．Although B．While C．Unless D．Now that 【答案】D 【详解】句意：既然台风已经过去了，为什么不去海边散步呢？ 考查Now that引导的原因状语从句。Although虽然；While当……时；Unless除非，如果不；Now that既然。根据“…the typhoon is gone, why not take a walk at the seaside?”，结合选项可知，此处应该表达既然台风已经过去了，为什么不去海边散步呢，所以此处应该用Now that引导原因状语从句。故选D。 10．—Mother’s Day is coming. Shall we make a big dinner for Mum? —Good idea! But please give me some guidance (指导), ________ I don’t know how to cook. A．though B．but C．as D．while 【答案】C 【详解】句意：——母亲节快到了。我们为妈妈做一顿丰盛的晚餐好吗？——好主意！但是请给我一些指导，因为我不知道怎样烹饪。 考查连词辨析。though尽管；but但是；as因为；while当……时。“I don’t know how to cook.”是“But please give me some guidance”的原因，用as引导原因状语从句。故选C。 11．I didn’t go to watch the movie with him ________ I saw it last week. A．until B．so C．if D．because 【答案】D 【详解】句意：我没有和他一起去看电影因为我上周已经看过了。 考查连词词义辨析。until直到……为止；so因此，所以；if如果；because因为。根据“I didn’t go to watch the movie with him”与“I saw it last week”可知，在这个句子中, 前后两句之间存在明确的因果关系。故选D。 12．She’s my hero __________ she’s one of the best players in the world. A．because B．so C．or D．because of 【答案】A 【详解】句意：她是我的英雄，因为她是世界上最好的运动员之一。 考查连词辨析。because因为，后接句子；so所以；or或者；because of因为，后接名词或代词。根据“She’s my hero...she’s one of the best players in the world.”可知，空后表原因，需用because来引导原因状语从句。故选A。 13．He has got everything ready ________ he may want to go hiking. A．as B．when C．if D．with 【答案】A 【详解】句意：他把一切都准备好了，因为他可能想去远足。 考查词义辨析。as因为；when当……时候；if如果；with和，介词。根据空前后句的句意可知，此处表示原因。故选A。 14．________ traditional Chinese characters (繁体字) are a great part of Chinese culture, we must keep them alive. A．After B．Although C．Since 【答案】C 【详解】句意：既然繁体字是中国文化的重要组成部分，我们就必须保持它们的生命力。 考查连词辨析。After在……之后；Although尽管；Since既然，由于。前后句之间是因果关系，需用since引导原因状语从句。故选C。 15．Don’t be afraid of changing, ________ it’s leading you to a new beginning. A．if B．because C．though D．unless 【答案】B 【详解】句意：不要害怕改变，因为它会带你走向一个新的开始。 考查连词辨析。if如果；because因为；though尽管；unless除非。根据“it’s leading you to a new beginning”可知后句是“不要害怕改变”的原因，应用because引导原因状语从句。故选B。 16．Reading aloud is a good reading method ________ it will help us to memorize information better and longer. A．because B．although C．unless D．while 【答案】A 【详解】句意：大声朗读是一个好的阅读方法，因为它会帮助我们更好更久地记住信息。 考查连词辨析。because因为；although尽管；unless除非；while当……的时候。根据“Reading aloud is a good reading method...it will help...”可知，此处应表达的是因果关系，所以应选用表示原因的连词because。故选A。 17．John feels excited ________ he is going to have a tennis match with an excellent player this weekend. A．because B．but C．or D．so 【答案】A 【详解】句意：约翰很兴奋，因为这个周末他要和一位优秀的网球选手进行一场网球比赛。 考查连词辨析。because因为；but但是；or或者；so所以。分析“John feels excited...he is going to have a tennis match with an excellent player this weekend.”可知，前后句是因果关系，前果后因，应用because引导原因状语从句。故选A。 18．I’m sure Sarah will win the girls’ 800-meter race ________ she has been practicing really hard in the past three months. A．unless B．because C．though D．until 【答案】B 【详解】句意：我相信莎拉会赢得女子800米比赛，因为她在过去的三个月里一直在努力练习。 考查连词辨析。unless除非；because因为；though虽然；until直到。前后两句是因果关系，此处表示原因，用because引导原因状语从句。故选B。 19．Victor would like to be a doctor in the future ________ he likes helping sick people. A．when B．as C．because D．or 【答案】C 【详解】句意：维克多将来想成为一名医生，因为他喜欢帮助生病的人。 考查从属连词辨析。when当……时候；as当……时候；because因为；or或者。根据“Victor would like to be a doctor in the future…he likes helping sick people”可知，此处在说想成为医生的原因，应用because引导原因状语从句。故选C。 20．Parents should not compare their children with others too often ________ every child is a treasure. A．because B．and C．so D．unless 【答案】A 【详解】句意：父母不应该经常拿自己的孩子和别人比较，因为每个孩子都是一个宝贝。 考查连词辨析。because因为；and和，又；so所以；unless除非。分析句子结构可知，前后两句存在因果关系，前句为果，后句为因，应用because引导原因状语从句。故选A。 21．—Do you like traveling by plane? —Not at all, ________ I have to wait for long before it takes off. A．until B．though C．because D．unless 【答案】C 【详解】句意：——你喜欢坐飞机旅行吗？  ——一点也不，因为我得等很久才能起飞。 考查连词辨析。until直到；though尽管；because因为；unless除非。根据“I have to wait for long before it takes off.”可知，此处表原因。故选C。 22．Quan Hongchan did really well in the competition ________ she practiced day and night. A．although B．because C．so D．but 【答案】B 【详解】句意：全红禅在比赛中表现得很好，因为她日夜练习。 考查连词。although尽管；because因为；so所以；but但是。前一句表示她在比赛中表现得好，后一句表示她日夜练习，前后表示因果关系，后一句是原因，因此用because引导原因状语从句，故选B。 23．Mr Zhou was really anxious ________ he couldn’t find his car. A．while B．because C．because of D．until 【答案】B 【详解】句意：周先生真的很着急，因为他找不到他的车。 考查连词辨析。while当……时；because因为；because of因为，后接名词或名词性短语；until直到。空格后“找不到车”是他着急的原因，用because引导原因状语从句，故选B。 24．I didn’t go to school yesterday ________ I had a terrible toothache. A．because B．but C．so D．or 【答案】A 【详解】句意：昨天我没有去上学，因为我牙痛得很厉害。 考查连词辨析。because因为；but但是；so因此；or或者。根据“I didn’t go to school yesterday ... I had a terrible toothache.”可知，没去上学是因为牙疼得厉害，用because表示原因。故选A。 25．Everyone wants to make friends with Andy, ________ he is very friendly. A．but B．because C．so D．or 【答案】B 【详解】句意：每个人都想和安迪交朋友，因为他非常友好。 考查连词辨析。but但是；because因为；so所以；or或者。句子想表达的意思是“每个人想和安迪交朋友的原因是他非常友好”，because为连词，用来表示原因，在句中引导原因状语从句。故选B。 26．—Mum, I failed the test. But I will work hard in the following days. —OK, my boy. ________ you have made the promise, you should keep to it and not give up easily. A．Whether B．Unless C．Since D．Though 【答案】C 【详解】句意：——妈妈，我考试不及格。但我会在接下来的日子里努力学习。——好的，我的孩子。既然你已经做出了承诺，就应该信守诺言，不要轻易放弃。 考查连词辨析。Whether是否，引导名词性从句；Unless除非，引导条件状语从句；Since既然，引导原因状语从句；Though虽然，引导让步状语从句。根据“…you have made the promise, you should keep to it”可知，既然做了承诺，就要信守。故选C。 27．It’s hard to say goodbye to our middle school ________ we all have many happy days to remember. A．because B．before C．until D．unless 【答案】A 【详解】句意：很难和我们的中学说再见，因为我们都有许多记得的快乐日子。 考查连词辨析。because因为；before在……之前；until直到；unless除非。根据“It’s hard to say goodbye to our middle school …we all have many happy days to remember.”可知，因为度过了许多快乐的日子，所以很难和我们的中学说再见，用because引导原因状语从句，故选A。 28．Lily didn’t know how to deal with the trouble ________ she couldn’t speak French. A．though B．because C．unless D．if 【答案】B 【详解】句意：Lily不知道如何处理这些麻烦，因为她不会说法语。 考查连词辨析。though尽管；because因为；unless除非；if如果。根据“Lily didn’t know how to deal with the trouble...she couldn’t speak French.”可知，前后句为因果关系。故选B。 29．My boss didn’t attend the meeting ________ he had a bad cold yesterday afternoon. A．so B．because C．although D．until 【答案】B 【详解】句意：因为我的老板昨天下午得了重感冒，所以没有参加会议。 考查连词辨析。so因此；because因为；although尽管；until直到；根据“My boss didn’t attend the meeting...he had a bad cold yesterday afternoon.”可知因为昨天下午我的老板患了重感冒所以没参加会议，前后之间构成因果关系，且后句是前句的原因。故选B。 30．It might be a boy’s room _________ the clothes look like a boy’s clothes. A．when B．because C．but D．so 【答案】B 【详解】句意：这可能是一个男孩的房间，因为衣服看起来像男孩的衣服。 考查连词辨析。when当……时候；because因为；but但是；so所以。分析题干可知，前后句是因果关系，前果后因，应用because引导原因状语从句，故选B。 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．既然你已经完成了家庭作业，你就可以打篮球了。 you have finished your homework, you can play basketball. 【答案】Now that 【详解】空处缺少“既然”的表达，用now that/since表示，两者都可引导时间状语从句，但是now that常用于句首，since则常用于句中，故填Now that。 33．我们推荐丹尼儿是因为他能使所有东西保持井然有序。 We recommend Daniel . 【答案】because he can keep everything in order 【详解】because因为，是一个连词，引导原因状语从句，主语为he，谓语动词是can keep；keep…in order是一个固定短语，井然有序；everything所有东西，作宾语。 34．因为太多的工作，昨天晚上我妈妈不得不熬夜。 Last night, my mother stay up late too much work. 【答案】 had to because of/because she had/because she did 【详解】根据“Last night”可知用一般过去时。不得不have to；因为太多的工作because of too much work/because she had too much work/because she did too much work。故填had to；because of/because she had/because she did。 35．她不开心是因为她上学迟到了。 She was unhappy she was late school. 【答案】 because for 【详解】第一处表示“因为”，可用连词because引导原因状语从句；第二处构成“be late for”短语，意为“迟到”。故填because；for。 36．由于虚拟现实科技，人们不必亲临其境即可游览国内外名胜。 of VR technology, people can places of interest both at home and abroad instead of going there in person. 【答案】 Because visit 【详解】根据中英文对照可知，这里缺的是“由于”和“游览”，英语中“由于”也就是“因为”，所以可以说成是because，“游览”也就是“参观”，英语是visit，且空格前有情态动词can，所以这里应该用动词原形，故答案为Because，visit。 37．Lily和她妈妈都对这个沙发不满意，因为它占据了太多的空间。 too much space. 【答案】Neither Lily nor her mother is satisfied with the sofa because it takes up/Both Lily and her mother are not satisfied with the sofa because it takes up 【详解】此句为原因状语从句，描述事实用一般现在时。对照中英文可知，缺少“Lily和她妈妈都对这个沙发不满意，因为它占据了”。“Lily和她妈妈都”用both Lily and her mother，或者“两者都不……”用neither…nor…，遵循“就近原则”，“Lily和她妈妈都不……”用neither Lily nor her mother，位于句首首字母大写；“对……满意”用be satisfied with sth.，用both…and…短语时，be动词用are，“对……不满意”用are not satisfied with sth.；用neither…nor…短语时“her mother”决定了be动词用is；“这个沙发”用the sofa；“因为”用because，引导原因状语从句；“它”用it，主格作主语；“占据”用take up，主语为第三人称单数的it，谓语动词用三单形式的takes up。故填Neither Lily nor her mother is satisfied with the sofa because it takes up/Both Lily and her mother are not satisfied with the sofa because it takes up。 38．来英国的最佳时间是从五月到九月，因为天气既不潮湿也不寒冷。 the UK is from May to September . 【答案】 The best time to visit because the weather is not wet or cold/because the weather isn’t wet or cold 【详解】描述事实用一般现在时。对照中英文可知，缺少“来……的最佳时间”和“因为天气既不潮湿也不寒冷”。“做某事的最佳时间”用the best time to do sth，位于句首首字母大写；“来……”即“参观”用visit，动词；“来……的最佳时间”用the best time to visit；“因为”用because，引导原因状语从句；“天气”用the weather，作主语；“潮湿”用wet，形容词作表语；“寒冷”用cold，形容词作表语；“是”用is，构成主系表结构；“既不潮湿也不寒冷”用is not wet or cold或isn’t wet or cold。“因为天气既不潮湿也不寒冷”用because the weather is not wet or cold或because the weather isn’t wet or cold。故填The best time to visit；because the weather is not wet or cold/because the weather isn’t wet or cold。 39．既然孩子们都知道了，我们可以告诉其他人。 the children know, we can tell anyone else. 【答案】 Now that 【详解】now that“既然”，引导原因状语从句，故填Now；that。 40．因为我们齐心协力，所以很快就控制住了疫情。 Because we , the epidemic was under control in a short time. 【答案】pulled together 【详解】本句是原因状语从句，主句是一般过去时，可知从句时态是一般过去时。pull together：齐心协力，过去式是pulled together。故答案为pulled together。 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 Module 3 Heroes 原因状语从句 （时间：60分钟，满分：100分） 原因状语从句表原因，常见的引导词有： because（因为），since（既然），as（既然），for（因为） 1.because引导的原因状语从句一般放于主句之后，because表示直接原因，语气最强，回答why引导的疑问句必须使用because。 I do it because I like it..——Why didn’t he come yesterday?——Because he had something important to do. 注意 “not……because” 结构中的not否定的是because引导的整个从句， 例如：The country is not strong because it is large.国强不在大。 2． Since引导的原因状语从句一般位于主句之前，表示已知的、显然的理由。通常被翻译成“既然”，较为正式，语气比because弱。 Since you are free today, you had better help me with my mathematics.     既然今天你休息，你最好帮我补习数学。 3.as引导原因状语从句时表示附带说明的“双方已知的原因”，语气比since弱，较正式，位置较灵活，常放于主句之前。 As it is raining, you’d better take a taxi.     既然在下雨，你最好乘出租汽车。 4. for引导的原因状语从句并不说明主句行为发生的直接原因，只提供一些辅助性的补充说明，for引导的原因状语从句只能放于主句之后并且必须用逗号将其与主句隔开。 He could not have seen me, for I was not there. 他不可能见过我，因为我不在那里。 It’s a long time since we met last. 好久没见面了。 一、单项选择(本大题共30小题，每小题2分，共60分) 1．—My grandfather still reads books every day ________ he thinks learning is a journey that never ends. —He sets a good example for us. A．before B．unless C．though D．because 2．Zhaxi didn’t go to school yesterday ________ he was ill. A．because B．because of C．if D．so 3．The course of life never runs smoothly ________ it is full of ups and downs. A．because B．though C．if D．unless 4．Please wear glasses when doing the experiment, ________ your eyes may get hurt. A．since B．although C．because D．unless 5．I love the song What the World Has Given Me ________ it makes me feel peace and warmth. A．because B．although C．until D．so 6．Everyone wants to make friends with Andy, ________ he is very friendly. A．but B．because C．so D．or 7．______ we are now in the old town, why not taste the local food here. A．Though B．Since C．Before D．Unless 8．It’s important to keep learning about new ideas and technology ________ the world changes fast. A．so B．or C．unless D．since 9．________ the typhoon is gone, why not take a walk at the seaside? A．Although B．While C．Unless D．Now that 10．—Mother’s Day is coming. Shall we make a big dinner for Mum? —Good idea! But please give me some guidance (指导), ________ I don’t know how to cook. A．though B．but C．as D．while 11．I didn’t go to watch the movie with him ________ I saw it last week. A．until B．so C．if D．because 12．She’s my hero __________ she’s one of the best players in the world. A．because B．so C．or D．because of 13．He has got everything ready ________ he may want to go hiking. A．as B．when C．if D．with 14．________ traditional Chinese characters (繁体字) are a great part of Chinese culture, we must keep them alive. A．After B．Although C．Since 15．Don’t be afraid of changing, ________ it’s leading you to a new beginning. A．if B．because C．though D．unless 16．Reading aloud is a good reading method ________ it will help us to memorize information better and longer. A．because B．although C．unless D．while 17．John feels excited ________ he is going to have a tennis match with an excellent player this weekend. A．because B．but C．or D．so 18．I’m sure Sarah will win the girls’ 800-meter race ________ she has been practicing really hard in the past three months. A．unless B．because C．though D．until 19．Victor would like to be a doctor in the future ________ he likes helping sick people. A．when B．as C．because D．or 20．Parents should not compare their children with others too often ________ every child is a treasure. A．because B．and C．so D．unless 21．—Do you like traveling by plane? —Not at all, ________ I have to wait for long before it takes off. A．until B．though C．because D．unless 22．Quan Hongchan did really well in the competition ________ she practiced day and night. A．although B．because C．so D．but 23．Mr Zhou was really anxious ________ he couldn’t find his car. A．while B．because C．because of D．until 24．I didn’t go to school yesterday ________ I had a terrible toothache. A．because B．but C．so D．or 25．Everyone wants to make friends with Andy, ________ he is very friendly. A．but B．because C．so D．or 26．—Mum, I failed the test. But I will work hard in the following days. —OK, my boy. ________ you have made the promise, you should keep to it and not give up easily. A．Whether B．Unless C．Since D．Though 27．It’s hard to say goodbye to our middle school ________ we all have many happy days to remember. A．because B．before C．until D．unless 28．Lily didn’t know how to deal with the trouble ________ she couldn’t speak French. A．though B．because C．unless D．if 29．My boss didn’t attend the meeting ________ he had a bad cold yesterday afternoon. A．so B．because C．although D．until 30．It might be a boy’s room _________ the clothes look like a boy’s clothes. A．when B．because C．but D．so 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．既然你已经完成了家庭作业，你就可以打篮球了。 you have finished your homework, you can play basketball. 33．我们推荐丹尼儿是因为他能使所有东西保持井然有序。 We recommend Daniel . 34．因为太多的工作，昨天晚上我妈妈不得不熬夜。 Last night, my mother stay up late too much work. 35．她不开心是因为她上学迟到了。 She was unhappy she was late school. 36．由于虚拟现实科技，人们不必亲临其境即可游览国内外名胜。 of VR technology, people can places of interest both at home and abroad instead of going there in person. 37．Lily和她妈妈都对这个沙发不满意，因为它占据了太多的空间。 too much space. 38．来英国的最佳时间是从五月到九月，因为天气既不潮湿也不寒冷。 the UK is from May to September . 39．既然孩子们都知道了，我们可以告诉其他人。 the children know, we can tell anyone else. 40．因为我们齐心协力，所以很快就控制住了疫情。 Because we , the epidemic was under control in a short time. 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 $$