Unit 6 Life in the future 语法Grammar 条件状语从句-2025-2026学年八年级英语上册单元重难点易错题精练（沪教版五四学制2024）

班级 姓名 学号 分数 Unit 6 Life in the future 条件状语从句 （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．________ you win the first prize, I’ll take you to Sanya on vacation. A．As long as B．So C．Although D．Because 2．—I want to keep fit but I always stop exercising after just a few days. —Don’t give up! ___________ you exercise for 3 weeks, you will get into the habit and start to enjoy it. A．And B．Once C．But D．So 3．________ we deal with our problems, we can easily become unhappy. A．Unless B．If C．Until D．Though 4．Monkey King cannot change into a human ________ he can hide his tail. A．because B．so C．while D．unless 5．We’ll go for a picnic with our classmates in Nanxi Wetland Park if it ________ tomorrow. A．doesn’t rain B．rained C．won’t rain D．rains 6．We can have a wonderful future ________ we work hard. A．if B．unless C．so D．although 7．We never know we will succeed (成功) ________ we take actions. A．or B．though C．unless D．if 8．We will go for a picnic this weekend ________ the weather is fine. A．if B．unless C．because D．though 9．—Tom, do you think the rain forests will disappear from the earth one day? —Unless humans ________ from cutting down trees from now on. A．will stop B．will be stopped C．are stopping D．are stopped 10．If we ________ a diary in English, our written English will improve a lot. A．keep B．kept C．will keep D．have kept 11．You will be good at what you are learning ________ you practice hard. A．if B．but C．unless D．or 12．It’s impossible to achieve anything________ you are afraid of difficulties and give up easily. A．though B．if C．unless D．until 13．The kind boy decided not to leave ________ the owner of the wallet came. A．if B．after C．because D．unless 14．_________ you’ve tried it, you can’t imagine how pleasant the journey to Sanya is. A．If B．Though C．Also D．Unless 15．It is impossible to achieve anything ________ you are brave enough to overcome difficulties. A．if B．though C．until D．unless 16．We can’t judge if the information from AI is right ________ we have a clear mind. A．after B．because C．unless D．since 17．You can be whatever you want to be ________ you try your best. A．as long as B．as if C．even though D．so that 18． you enjoy a book, it doesn’t matter if you’re reading it for the first time or the fifth. A．Unless B．Until C．Because D．If 19．Your dream will come true ________ you work hard and never give up. A．even though B．as soon as C．as long as D．so that 20．________ you do all these other things instead of your homework, you won’t have time to study. A．If B．Though C．But D．Because 21．In some cities of China, you will get fined ________ you walk along the crosswalk while crossing the road. A．if B．until C．though D．unless 22．—Helen, do you know if Jack ________ to my party this Saturday? —Don’t worry. If he ________, he will call you first. A．will come; will come B．comes; will come C．will come; comes D．comes; comes 23．If you don’t stop working hard, you ________ some day. A．succeed B．succeeded C．will succeed D．have succeeded 24．Please don’t feed animals at the zoo, ________ the animal keeper allows you to do so. A．if B．unless C．and D．but 25．—Would you like to go hiking with us tomorrow? —Sure, ________ I am busy. A．since B．unless C．when D．until 26．—How can we complete the task successfully? —It needs close teamwork. Nothing will be achieved ________ we work well together. A．if B．although C．unless D．since 27．You will certainly make a big difference ________ you keep working hard. A．if B．until C．before D．although 28．—The air pollution is harming our earth. —It will be worse ______ stronger laws are made. A．since B．if C．until D．unless 29．The doctor will give him the right medicine ______ they find out the cause of the illness. A．if B．before C．until D．unless 30．________ you keep working hard, you will succeed some day. A．If B．Though C．Until D．Unless 二、完成句子(本大题共10小题，每小题4分，共40分) 31．Work harder, or you’ll not do well in your new job. (保持句意基本不变) work harder, you’ll not do well in your new job. 32．They will go for a picnic unless it rains tomorrow. (保持句意基本不变) They will go for a picnic it tomorrow. 33．If it doesn’t rain tomorrow, we will go hiking. (保持句意基本不变) We will go hiking it tomorrow. 34．he studies harder than before/Sam won’t make any progress (选词成句 if, when, because,unless) . 35．You wear AR contact lenses. You can play ping-pong with absent friends. (合并为含 if 的复合句) 36．a book lover, or choose e-books, you can, if, second-hand books, you are, buy (连词成句) . 37．If you don’t practice regularly, your memory skills will not improve. (保持句意基本不变) you regularly, your memory skills will not improve. 38．You should apologize to her unless you want to lose the friendship. (保持句意基本不变) You should apologize to her you want to lose the friendship. 39．Work harder, or you’ll not succeed in your new job. (保持句意基本不变) work harder, you’ll not succeed in your new job. 40．will, family car, go to school, if, I, rains, in, our, it (连词成句) . 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 $ 班级 姓名 学号 分数 Unit 6 Life in the future 条件状语从句 （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．________ you win the first prize, I’ll take you to Sanya on vacation. A．As long as B．So C．Although D．Because 【答案】A 【详解】句意：只要你赢得一等奖，我会带你去三亚度假。 考查连词辨析。As long as只要；So所以；Although虽然；Because因为。前半部分“you win the first prize”表示条件，后半部分“I’ll take you to Sanya on vacation.”表示结果，因此需要表示条件的连词，As long as意为“只要”，引导条件状语从句，符合逻辑。故选A。 2．—I want to keep fit but I always stop exercising after just a few days. —Don’t give up! ___________ you exercise for 3 weeks, you will get into the habit and start to enjoy it. A．And B．Once C．But D．So 【答案】B 【详解】句意：——我想保持健康，但我总是锻炼几天就停了。——不要放弃！一旦锻炼3周，你会养成习惯并开始享受它。 考查连词辨析。And和，表并列；Once一旦，引导条件状语从句；But但是，表转折；So所以，表结果。根据“Don’t give up!...exercise for 3 weeks, you will get into...”可知“exercise for 3 weeks”表示条件，主句“you will get into the habit”表示结果，故用“once”引导条件从句，意为“一旦……就……”。故选B。 3．________ we deal with our problems, we can easily become unhappy. A．Unless B．If C．Until D．Though 【答案】A 【详解】句意：如果我们不能解决我们的问题，我们就可能很容易变得不开心。 考查连词辨析。Unless如果不，除非，引导条件状语从句；If如果；Until 直到……时候，引导时间状语从句；Though虽然，引导让步状语从句。根据“... we deal with our problems, we can easily become unhappy.”可知，空格处需表达“很容易变得不开心”的条件，Unless“如果不”符合句意。故选A。 4．Monkey King cannot change into a human ________ he can hide his tail. A．because B．so C．while D．unless 【答案】D 【详解】句意：孙悟空不能把他自己变成人，除非他藏住尾巴。 考查连词辨析。because因为；so因此；while然而；unless除非。后半句是前半句的否定条件，用unless引导条件状语从句。故选D。 5．We’ll go for a picnic with our classmates in Nanxi Wetland Park if it ________ tomorrow. A．doesn’t rain B．rained C．won’t rain D．rains 【答案】A 【详解】句意：如果明天不下雨，我们将和同学们去南溪湿地公园野餐。 考查if引导的条件状语从句。本句是由if引导的条件状语从句，遵循“主将从现”原则，即主句用一般将来时，从句用一般现在时表示将来；从句的主语是it，谓语动词是rain，结合语境，是说如果明天不下雨就去野餐，所以要用否定形式doesn’t rain。故选A。 6．We can have a wonderful future ________ we work hard. A．if B．unless C．so D．although 【答案】A 【详解】句意：如果我们努力学习，我们会有一个美好的未来。 考查连词辨析。if如果；unless如果不，除非；so所以；although虽然。根据前后句关系可知，从句表达是假设关系，是一种肯定条件，故用if引导条件状语从句。故选A。 7．We never know we will succeed (成功) ________ we take actions. A．or B．though C．unless D．if 【答案】C 【详解】句意：我们永远不会知道是否会成功，除非我们采取行动。 考查连词辨析。or或者，表示选择；though尽管，表示让步关系；unless除非，如果不，引导条件状语从句；if如果，引导条件状语从句。根据“We never know we will succeed ... we take actions.”可知，如果不采取行动，那么就永远不会知道是否会成功，应用unless引导条件状语从句，unless用来表示一个条件，即在没有这个条件的情况下，某个结果不会发生。故选C。 8．We will go for a picnic this weekend ________ the weather is fine. A．if B．unless C．because D．though 【答案】A 【详解】句意：如果天气好，我们这个周末会去野餐。 考查连词辨析。if如果；unless除非；because因为；though虽然。根据“We will go for a picnic this weekend ...the weather is fine.”可知，去野餐的前提是天气好，需用表示条件的连词“if”。故选A。 9．—Tom, do you think the rain forests will disappear from the earth one day? —Unless humans ________ from cutting down trees from now on. A．will stop B．will be stopped C．are stopping D．are stopped 【答案】D 【详解】句意：——汤姆，你认为雨林有一天会从地球上消失吗？——除非人类从现在起被阻止砍伐树木。 考查时态和语态。“humans”与“stop”之间为动宾关系，人类“被阻止”砍伐树木，需用被动语态；句子为unless引导的条件状语从句，遵循“主将从现”原则，主句隐含将来时，从句用一般现在时。故选D。 10．If we ________ a diary in English, our written English will improve a lot. A．keep B．kept C．will keep D．have kept 【答案】A 【详解】句意：如果我们坚持用英语写日记，我们的书面英语会提高很多。 考查动词时态。该句为if引导的条件状语从句，遵循“主将从现”原则，从句用一般现在时，主语是“we”，动词用原形。故选A。 11．You will be good at what you are learning ________ you practice hard. A．if B．but C．unless D．or 【答案】A 【详解】句意：如果你努力练习，你会擅长你正在学习的东西。 考查连词辨析。if如果；but但是；unless除非；or或者。根据“you practice hard”可知，此处描述一个假设的情景，是条件状语从句。故选A。 12．It’s impossible to achieve anything________ you are afraid of difficulties and give up easily. A．though B．if C．unless D．until 【答案】B 【详解】句意：如果你害怕困难并轻易放弃，就不可能取得任何成就。 考查连词辨析。though尽管；if如果；unless除非；until直到。根据“you are afraid of difficulties and give up easily.”可知，如果害怕困难并轻易放弃，就不可能取得任何成就。故选B。 13．The kind boy decided not to leave ________ the owner of the wallet came. A．if B．after C．because D．unless 【答案】D 【详解】句意：善良的男孩决定，除非钱包的主人来了，否则他不会离开。 考查连词辨析。if如果；after在……以后；because因为；unless。根据“The kind boy decided not to leave...the owner of the wallet came.”可知，后句是前句的否定条件，应用unless引导条件状语从句。故选D。 14．_________ you’ve tried it, you can’t imagine how pleasant the journey to Sanya is. A．If B．Though C．Also D．Unless 【答案】D 【详解】句意：除非你试过，否则你无法想象去三亚的旅行是多么愉快。 考查连词辨析。If如果；Though虽然；Also也；Unless除非。句子意为“除非”你尝试过，否则你无法想象去三亚的旅程有多愉快。故选D。 15．It is impossible to achieve anything ________ you are brave enough to overcome difficulties. A．if B．though C．until D．unless 【答案】D 【详解】句意：除非你有足够的勇气克服困难，否则是不可能取得任何成就的。 考查连词辨析。if如果；though尽管；until直到；unless除非。根据“you are brave enough to overcome difficulties.”可知，后一句是前一句的否定条件，如果没有足够的勇气克服困难，是不可能取得任何成就的，应用unless引导条件状语从句。故选D。 16．We can’t judge if the information from AI is right ________ we have a clear mind. A．after B．because C．unless D．since 【答案】C 【详解】句意：我们无法判断人工智能提供的信息是否正确，除非我们有一个清醒的头脑。 考查连词。after在……之后；because因为；unless除非；since自从。unless 表示“除非”，引导条件状语从句，只有具备清晰头脑，才能判断信息是否正确，符合句意逻辑。故选C。 17．You can be whatever you want to be ________ you try your best. A．as long as B．as if C．even though D．so that 【答案】A 【详解】句意：只要你尽最大努力，你就可以成为任何你想成为的人。 考查连词短语辨析。as long as只要；as if好像；even though即使；so that以便，为了。根据“You can be whatever you want to be…you try your best.”可知，这里需要一个连词短语来连接前后句的逻辑关系，“你尽最大努力”是“你可以成为任何你想成为的人”的条件，as long as表示“只要”，引导条件状语从句，符合语境。故选A。 18． you enjoy a book, it doesn’t matter if you’re reading it for the first time or the fifth. A．Unless B．Until C．Because D．If 【答案】D 【详解】句意：如果你喜欢一本书，不管你是第一次还是第五次读它都没关系。 考查连词辨析。Unless除非；Until直到；Because因为；If如果。根据“you enjoy a book, it doesn’t matter if you’re reading it for the first time or the fifth”可知，如果你喜欢一本书，不管你是第一次还是第五次读它都没关系，此处引导肯定的条件状语从句，应用if。故选D。 19．Your dream will come true ________ you work hard and never give up. A．even though B．as soon as C．as long as D．so that 【答案】C 【详解】句意：只要你努力并且不放弃，你的梦想总有一天会实现。 考查连词词义辨析。even though即使；as soon as一……就……；as long as只要；so that以至于。根据“you work hard and never give up.”及语境可知此处表示“只要”。故选C。 20．________ you do all these other things instead of your homework, you won’t have time to study. A．If B．Though C．But D．Because 【答案】A 【详解】句意：你如果做所有这些其他事情而不是你的作业，你将没有时间去学习。 考查连词辨析。If如果；Though虽然；But但是；Because因为。根据“…you do all these other things instead of your homework, you won’t have time to study.”可知，此处是假设做某事，你将没有时间去学习，应用if引导条件状语从句。故选A。 21．In some cities of China, you will get fined ________ you walk along the crosswalk while crossing the road. A．if B．until C．though D．unless 【答案】D 【详解】句意：在中国的一些城市里，你过马路时，除非走在斑马线，否则你会被罚款。 考查从属连词辨析。if如果；until直到；though尽管；unless除非。根据“you will get fined”和“you walk along the crosswalk”可知，除非走斑马线，否则会被罚款，用unless引导条件状语从句。故选D。 22．—Helen, do you know if Jack ________ to my party this Saturday? —Don’t worry. If he ________, he will call you first. A．will come; will come B．comes; will come C．will come; comes D．comes; comes 【答案】C 【详解】句意：——海伦，你知道杰克这个星期六是否会来参加我的聚会吗？  ——别担心。如果他来了，他会先给你打电话。 考查if引导的条件状语从句和宾语从句。根据问句“...do you know if Jack...”可知此处是宾语从句，this Saturday表示这个星期六，时态为一般将来时，第一空填写will come；根据答句“If he...he will call you first”可知此处是条件状语从句，时态遵循“主将从现”原则，从句主语he是第三人称单数，谓语动词用三单形式。故选C。 23．If you don’t stop working hard, you ________ some day. A．succeed B．succeeded C．will succeed D．have succeeded 【答案】C 【详解】句意：如果你不停止努力工作，总有一天你会成功的。 考查if引导的条件状语从句的时态。根据if“如果”可知，遵循“主将从现”原则，从句用一般现在时，主句用一般将来时，其结构为will+do。故选C。 24．Please don’t feed animals at the zoo, ________ the animal keeper allows you to do so. A．if B．unless C．and D．but 【答案】B 【详解】句意：请不要在动物园喂动物，除非动物饲养员允许你这样做。 考查连词辨析。if如果；unless除非；and和；but但是。根据“Please don’t feed animals at the zoo, … the animal keeper allows you to do so”可知，除非动物饲养员允许你喂动物，否则不能这么做，故选B。 25．—Would you like to go hiking with us tomorrow? —Sure, ________ I am busy. A．since B．unless C．when D．until 【答案】B 【详解】句意：——你明天想和我们一起去远足吗？——当然，除非我很忙。 考查连词辨析。since自从；unless除非；when当……的时候；until直到……为止。分析题干可知，“我很忙”是“一起去远足”的否定条件，所以空格处应填unless。故选B。 26．—How can we complete the task successfully? —It needs close teamwork. Nothing will be achieved ________ we work well together. A．if B．although C．unless D．since 【答案】C 【详解】句意：——我们如何能成功完成任务？——这需要紧密的团队合作。除非我们同心协力，否则什么也做不成。 考查连词辨析。if如果，是否；although虽然；unless除非，如果不；since自从。根据“Nothing will be achieved...we work well together.”可知，unless符合语境，表示“如果不能一同把工作做好，那什么事也做不成”。故选C。 27．You will certainly make a big difference ________ you keep working hard. A．if B．until C．before D．although 【答案】A 【详解】句意：如果你一直努力，你一定会有所作为的。 考查连词。if如果；until直到；before在……之前；although尽管。根据“You will certainly make a big difference...you keep working hard.”并结合句意，你会有所作为，是在你一直努力的条件下，因此用if引导条件状语从句，故选A。 28．—The air pollution is harming our earth. —It will be worse ______ stronger laws are made. A．since B．if C．until D．unless 【答案】D 【详解】句意：——空气污染正在危害我们的地球。—— 除非制定更强有力的法律，否则情况会更糟。 考查连词辨析。since自从；if如果；until直至，直到……为止；unless除非。根据“worse”和“stronger laws are made”可知 这里应该用unless“除非”引导条件状语从句。故选D。 29．The doctor will give him the right medicine ______ they find out the cause of the illness. A．if B．before C．until D．unless 【答案】A 【详解】句意：如果医生查出了病因，就会给他开正确的药。 考查连词辨析。if如果；before在……之前；until直到；unless除非。“they find out the cause of the illness”是开正确的药的肯定条件，用if引导条件状语从句。故选A。 30．________ you keep working hard, you will succeed some day. A．If B．Though C．Until D．Unless 【答案】A 【详解】句意：如果你继续努力，总有一天你会成功的。 考查连词辨析。If如果；Though虽然；Until直到；Unless除非。根据“…you keep working hard, you will succeed some day.”可知，此处表示如果继续努力，总会成功，因此用If引导条件状语从句。故选A。 二、完成句子(本大题共10小题，每小题4分，共40分) 31．Work harder, or you’ll not do well in your new job. (保持句意基本不变) work harder, you’ll not do well in your new job. 【答案】 Unless you 【详解】句意：更加努力工作，否则你在新工作中会做不好。原句“... or ...”结构表示“否则”，隐含了“如果不做某事，就会发生负面结果”的逻辑关系，可转换为“unless”引导的条件状语从句，意为“除非……”；原句的“Work harder”是祈使句，隐含主语“you”，在条件从句中需要明确主语。故填Unless；you。 32．They will go for a picnic unless it rains tomorrow. (保持句意基本不变) They will go for a picnic it tomorrow. 【答案】 if doesn’t rain 【详解】句意：如果明天不下雨，他们就去野餐。原句中的“unless it rains”表示“除非下雨”，即“如果不下雨”，因此可以替换为“if it doesn’t rain”。故填if；doesn’t；rain。 33．If it doesn’t rain tomorrow, we will go hiking. (保持句意基本不变) We will go hiking it tomorrow. 【答案】 unless rains 【详解】句意：如果明天不下雨，我们就去远足。原句是if引导的条件状语从句，if...not可转换为unless，表示“除非”，从句时态仍用一般现在时表将来，主语it为第三人称单数，动词rain用第三人称单数形式rains。故填unless；rains。 34．he studies harder than before/Sam won’t make any progress (选词成句 if, when, because,unless) . 【答案】Sam won’t make any progress unless he studies harder than before 【详解】从语义逻辑来看，“Sam won’t make any progress（山姆不会取得进步）”和“he studies harder than before（他比以前更努力学习）”存在条件关联，即“取得进步”是以“更努力学习”为前提的，“unless”（除非；如果不）能准确表达这种“若不满足后者条件，就会出现前者结果”的逻辑关系，符合英语中条件状语从句的表意需求。按照“unless”引导条件状语从句的结构，将两部分内容组合，形成 “Sam won’t make any progress unless he studies harder than before” ，清晰呈现出 “山姆不会取得进步，除非他比以前更努力学习” 这样合理的语义和语法正确的句子。故填Sam won’t make any progress unless he studies harder than before“山姆不会取得进步，除非他比以前更努力学习”。 35．You wear AR contact lenses. You can play ping-pong with absent friends. (合并为含 if 的复合句) 【答案】If you wear AR contact lenses, you can play ping-pong with absent friends. 【详解】句意：你佩戴着增强现实隐形眼镜。你可以和不在场的朋友打乒乓球。根据题干要求可知，此处用if引导条件状语从句，连接两个句子，表达“如果……就……”的逻辑。结合原句可知，“You can play ping-pong with absent friends.”是主句，因为它表示结果。“You wear AR contact lenses.”是条件，所以用“if”引导作为从句。故填If you wear AR contact lenses, you can play ping-pong with absent friends. 36．a book lover, or choose e-books, you can, if, second-hand books, you are, buy (连词成句) . 【答案】If you are a book lover, you can choose e-books or buy second-hand books 【详解】分析标点和所给单词可知，句子为陈述句。主语是you“你”，“if you are a book lover”是条件状语从句，“you can choose e-books or buy second-hand books”是主句，其中“can choose”和“buy”是并列谓语，“e-books”和“second-hand books”是并列宾语，“or”连接两个并列的动作“choose e-books”和“buy second-hand books”。故填If you are a book lover, you can choose e-books or buy second-hand books “如果你是个爱书之人，你可以选择电子书或者购买二手书”。 37．If you don’t practice regularly, your memory skills will not improve. (保持句意基本不变) you regularly, your memory skills will not improve. 【答案】 Unless practice 【详解】句意：如果你不定期练习，你的记忆技能将不会提高。改同义句，此处可表达为“除非你定期练习，你的记忆技能才会提高。”，可用unless引导的条件状语从句替换，且首句首字母大写。故填Unless；practice。 38．You should apologize to her unless you want to lose the friendship. (保持句意基本不变) You should apologize to her you want to lose the friendship. 【答案】 if don’t 【详解】句意：除非你想失去这段友谊，否则你应该向她道歉。原句使用unless“除非”来表示条件，可以用if...not形式来保持句意不变，从句主语为you，时态为一般现在时，助动词用don’t。故填if；don’t。 39．Work harder, or you’ll not succeed in your new job. (保持句意基本不变) work harder, you’ll not succeed in your new job. 【答案】 Unless you 【详解】句意：要更加努力工作，否则你在新工作中不会成功。此处可改为“除非你更加努力，否则你的新工作不会成功”，用unless引导条件状语从句，从句主语是you。故填Unless；you。 40．will, family car, go to school, if, I, rains, in, our, it (连词成句) . 【答案】I will go to school in our family car if it rains 【详解】根据标点和单词可知应用陈述句的形式，分析所给单词，主句主语I，谓语will go to school，状语in our family car，if引导的条件状语从句中，从句主语it，谓语rains。故填I will go to school in our family car if it rains“如果下雨，我将乘家里的车去上学”。 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 $