Unit 5 The human brain 重点语法：条件状语从句100题（四大题型，分层练习）-【上好课】2024-2025学年九年级英语上册同步精品课堂（牛津上海版）

Unit5 The human brain 重点语法：条件状语从句100题（四大题型，分层练习） 目录 语法知识精讲 1 语法知识精练 1 题型一：if/only if引导条件状语从句 1 题型二：unless引导条件状语从句 7 题型三：as long as引导条件状语从句 12 题型四：条件状语从句综合训练（较难） 17 语法知识精讲 常用连接词：if, unless, as/so long as，on condition that等。 1.unless = if not Let's go out for a walk unless you are too tired. =If you are not too tired, let's go out for a walk. 2.主将从现原则 As long as you feed him, he will be cooperative. 3.祈使句+and/or/other wise +一般将来时 If you use your head, you’ll find a way. =Use your head and you’ll find a way. 语法知识精练 题型一：if/only if引导条件状语从句 1．Our country will be better ________ we all do something to help. A．if B．before C．but D．unless 【答案】A 【详解】句意：如果我们都做点儿什么来帮忙，我们的国家会变得更好。 考查连词辨析。if如果；before在……之前；but但是；unless除非。“我们都做点儿什么来帮忙”是“我们的国家会变得更好”肯定的条件，用if引导条件状语从句。故选A。 2．—Can students go online during lessons? —They can ________ it is for that lesson. A．and B．but C．if D．so 【答案】C 【详解】句意：——学生上课期间可以上网吗？——如果是为了上课，他们可以上网。 考查连词辨析。and 和，与，表并列；but 但是，表转折；if 如果，表条件； so所以，表结果。答句是条件状语从句，需用 if 连接。 故选C。 3．If Nancy ________ her friend’s invitation, she will be very unhappy. A．refuse B．refused C．refuses D．will refuse 【答案】C 【详解】句意：如果南希拒绝了她朋友的邀请，她将会非常不高兴。 考查动词时态。 if 引导的条件状语从句，要遵循主将从现原则，从句用一般现在时，此处用三单形式。故选C。 4．If you are lazy in spring, you ________ nothing in autumn. A．harvested B．will harvest C．are harvesting D．have harvested 【答案】B 【详解】句意：如果你在春天懒惰，秋天你将一无所获。 考查动词时态。If引导的条件状语从句，遵循“主将从现”的原则，主句需用一般将来时，其谓语动词结构为“will do”。故选B。 5．—If Nick ________ home too late, he ________ his favourite cartoon. —I think so. A．gets; misses B．gets; will miss C．will get; misses D．will get; will miss 【答案】B 【详解】句意：——如果尼克回家太晚，他会错过他最喜欢的动画片。——我也这么想。 考查if引导的条件状语从句。根据“If Nick…home too late, he…his favourite cartoon.”可知，此处是if引导的条件状语从句，应该遵循“主将从现”的原则。if引导的从句部分为一般现在时，主语Nick为第三人称单数，谓语动词用其三单式gets；主句部分为一般将来时will do。故选B。 6．—Let’s go to the community if it ________ tomorrow.   —But nobody knows if it ________ tomorrow. A．won’t rain; rains B．doesn’t rain; rains C．won’t rain; will rain D．doesn’t rain; will rain 【答案】D 【详解】句意：——如果明天不下雨，我们就去社区吧。——但是没有人知道明天会不会下雨。 考查时态。第一句中if表示“如果”，引导条件状语从句，时态符合“主将从现”，从句用一般现在时，故A与C选项错误；第二句中if表示“是否”，引导宾语从句，时态符合“主现从不限”，从句用所需的时态即可，由tomorrow可知从句是一般将来时will do。故选D。 7．________ you are under too much pressure, some classical music might just help. A．Unless B．If C．Because D．Although 【答案】B 【详解】句意：如果你压力太大，听听古典乐可能会有所帮助。 考查连词辨析。Unless除非；If如果；Because因为；Although尽管。前句“you are under too much pressure”是后句“some classical music might just help”的肯定条件，用If引导条件状语从句。故选B。 8．—Linda, let’s have a picnic this Sunday. —Sounds good. If I ________ my homework, I will go with you. A．finish B．finished C．will finish D．have finished 【答案】A 【详解】句意：——琳达，这个星期天我们去野餐吧。——听起来不错。如果我完成了我的作业，我会和你一起去。 考查条件状语从句的时态。if引导的条件状语从句，采用“主将从现”原则，从句用一般现在时，故选A。 9．Our city will be much better ________ we all do something to help. A．before B．if C．so that D．even though 【答案】B 【详解】句意：如果我们都尽一份力，我们的城市就会变得更加美好。 考查连词。before在……前；if如果；so that为了；even though即使。根据“we all do something to help.”可知，后句是前句的条件，此处应用if引导条件状语从句。故选B。 10．We will have little water to drink ______ we don’t save it. A．if B．unless C．until D．though 【答案】A 【详解】句意：如果我们不节约用水，我们将没有多少水可喝。 考查连词辨析。if如果；unless除非；until直到；although尽管。根据“We will have little water to drink…we don’t save it”可知，如果我们不节约用水的话以后就会没水喝，应用if引导条件状语从句。故选A。 11．They will stay at home ________ the weather is terrible. A．so that B．although C．if D．but 【答案】C 【详解】句意：如果天气不好，他们会待在家里。 考查连词辨析。so that以便；although尽管；if如果；but但是。根据“They will stay at home...the weather is terrible.”和选项可知，此处指如果天气不好，他们就待在家里，应用if引导条件状语从句。故选C。 12．If you ________ in the exam, you will let your mother down. A．fail B．failed C．will fail D．have failed 【答案】A 【详解】句意：如果你考试不及格，你将会让你妈妈失望的。 考查动词时态。if在此处引导条件状语从句，时态遵循“主将从现”原则，从句用一般现在时，主语是you，动词用原形。故选A。 13．________ you are too tired to do all the things on your To-Do list, try a To-Don’t list. A．If B．Until C．Although D．Unless 【答案】A 【详解】句意：如果你太累了，无法完成待办事项清单上的所有事情，试着列一张勿做事项清单。 考查连词辨析。If如果；Until直到；Although尽管；Unless除非。分析句子可知，此处指如果完成待办事项清单上的所有事情感到很累，可以列一张“勿做”清单，应用if引导条件状语从句。故选A。 14．If you go to Kunming in winter, you_______ lots of birds from the north of China. A．see B．saw C．will see D．have seen 【答案】C 【详解】句意：如果你冬天去昆明，你会看到很多来自中国北方的鸟。 考查动词时态。本句是if引导的条件状语从句，遵循主将从现原则，主句用一般将来时，故选C。 15．Success _________ if you keep working hard towards your goals . A．achieve B．will achieve C．can be achieved D．was achieved 【答案】C 【详解】句意：如果你继续朝着你的目标不断努力，成功是可以实现的。 考查含有情态动词的被动语态。句子的主语success与动词“achieve”之间是被动关系，所以要用被动语态；if引导条件状语从句，时态遵循“主将从现”原则，如果主句中含有情态动词时，从句通常用一般现在时，所以此处使用含有情态动词的被动语态（can be done）。故选C。 16．I wonder ________ it bothers you. ________ you don’t want to come, please let me know. A．if; If B．whether; Whether C．if; Whether D．if; Weather 【答案】A 【详解】句意：我想知道这是否打扰到你。如果你不想来，请告诉我。 考查连词辨析。if如果，是否；whether是否。wonder是动词，后跟宾语从句，此空用if或whether都可以；第二空后是条件状语从句，“you don’t want to come”是“please let me know”的肯定条件，只能用if引导。故选A。 17．I wonder _______ he will come tomorrow or not. ________ he comes, please let me know at once. A．whether; If B．if; Whether C．that; If D．whether; Whether 【答案】A 【详解】句意：我想知道他明天是否会来。如果他来了，请马上告诉我。 考查从属连词辨析。whether是否；if如果，是否；that引导宾语从句时，无实际意义。分析“I wonder...he will come tomorrow or not.”可知，空处是宾语从句的引导词，意为“是否”，if不与or not连用，所以第一空应选whether；分析“...he comes, please let me know at once.”可知，此处表示如果他来了，请马上告诉“我”。因此第二空应选If引导此条件状语从句。故选A。 18．—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：——你知道杰克这个星期六是否来参加我的聚会吗？ ——不要担心。如果他来了，他会先给你打电话的。 考查动词时态。第一空，根据“Do you know if Jack … to my party this Saturday?”可知，此处if“是否”引导宾语从句，从句中“this Saturday”为将来的时间，句子时态应用一般将来时，排除B和D；第二空，根据“If he…, he will call you first.”可知，此处if“如果”引导条件状语从句，符合“主将从现”原则，主句为一般将来时，从句应用一般现在时，主语为“he”，谓语动词应用三单形式comes，排除A。故选C。 19．—I doubt if he ________ to the party with us tonight. What do you think? —I believe if he ________ his homework tonight, he will go with us. A．will go; will finish B．will go; finishes C．goes; finishes D．goes; will finish 【答案】B 【详解】句意：——我怀疑他今晚是否会和我们一起去参加晚会。你认为呢？ ——我相信如果他今晚完成作业，他会和我们一起去的。 考查动词时态。第一空，根据“I doubt if he … to the party with us tonight.”可知，此处是if“是否”引导宾语从句，从句中“tonight”为将来时间，句子时态应用一般将来时，排除C和D；第二空，根据“I believe if he…his homework tonight, he will go with us.”可知，此处是if“如果”引导条件状语从句，符合“主将从现”原则，主句为一般将来时，从句则用一般现在时；主语“he”为第三人称单数，谓语动词应用三单形式finishes，排除A。故选B。 20．—Sam, do you know if Alice ________ to my party next week? —I think she will come if she ________. A．will come; will be invited B．comes; is invited C．will come; is invited D．comes; will be invited 【答案】C 【详解】句意：——Sam，你知道Alice下周是否会来参加我的聚会吗？ ——我想如果她被邀请的话，她会来的。 考查动词时态和被动语态。第一空，根据“do you know if Alice … to my party next week”可知，此句是if引导的宾语从句；由时间状语“next week”可知，从句时态应用一般将来时，其结构为will do，排除B和D；第二空，根据“she will come if she…”可知，此句是if引导的条件状语从句，适合“主将从现”原则，主句为一般将来时，从句应用一般现在时，主语“she”为第三人称单数，且与invite是被动关系，应用一般现在时的被动语态，其结构为is done，动词invite的过去分词为invited，排除A。故选C。 题型二：unless引导条件状语从句 21．It’s difficult to get to that far city ________ you have a car. A．since B．after C．unless D．because 【答案】C 【详解】句意：除非你有车，否则很难到达那个遥远的城市。 考查连词辨析。since自从；after在……之后；unless除非；because因为。根据“It’s difficult to get to that far city”可知，此处表示“除非你有车”，应该用unless引导条件状语从句。故选C。 22．Practice is very important. You will forget the new words ______ you often use them. A．when B．unless C．if D．until 【答案】B 【详解】句意：练习是非常重要的。如果你不经常使用生词，你就会忘记它们。 考查连词辨析。when当……时；unless除非；if如果；until直到。根据“You will forget the new words … you often use them.”可知，除非经常使用，否则会忘记的，故选B。 23．You will not take the lead ________ you put your whole heart into the final exam. A．unless B．whenever C．though D．since 【答案】A 【详解】句意：除非你全心投入期末考试，否则你不会领先。 考查连词辨析。unless除非；whenever 无论何时；though尽管；since因为。后一句是前一句的否定条件，unless符合句意，故选A。 24．You won’t improve your ability _________ you practise playing the piano regularly. A．if B．unless C．as soon as D．until 【答案】B 【详解】句意：除非你经常练习弹钢琴，否则你的能力不会提高。 考查连词辨析。if 如果；unless除非；as soon as一……就；until直到。根据“you practise playing the piano regularly”可知，后一句是前一句的否定条件，不练习弹钢琴就不能提高能力，故选B。 25．You’ll be late for school _________ you take a taxi. A．unless B．as C．if D．until 【答案】A 【详解】句意：除非你乘坐出租车，否则你会上学迟到的。 考查连词辨析。unless除非，引导条件状语从句； as因为，引导原因状语从句；if如果，引导条件状语从句；until直到，通常使用“not…until…直到……才”，引导时间状语从句。根据句意“除非你乘坐出租车，否则你会上学迟到的。”可知，此句是unless引导的条件状语从句。故选A。 26．Lots of people exercise every morning ________ bad weather stops them. A．if B．until C．unless D．since 【答案】C 【详解】句意：除非坏天气阻止他们，否则这些人会每天早上锻炼。 考查连词辨析。if如果；until直到；unless除非；since自从。根据“Lots of people exercise every morning …bad weather stops them.”可知，此处空后为否定条件，故使用unless引导条件状语从句，故选C。 27．Scientists say that there will be more plastic in the ocean than fish by 2050, ________ something is done to stop plastic pollution. A．after B．though C．unless D．because 【答案】C 【详解】句意：科学家表示，除非采取措施阻止塑料污染，否则到2050年海洋中的塑料将比鱼还多。 考查连词辨析。after在……之后；though尽管；unless除非；because因为。根据“something is done to stop plastic pollution.”可知，此处表示“除非采取行动阻止塑料污染，否则海洋中的塑料将超过鱼”，应用unless引导条件状语从句。故选C。 28．—I want to go to the Happiness Opera House to watch the talk show next week. —Well, we won’t be able to get good seats ________ we book the tickets online early. A．if B．unless C．because D．after 【答案】B 【详解】句意：——下周我想去幸福歌剧院看脱口秀。——嗯，除非我们提前在网上预订票，否则我们将无法获得好座位。 考查连词。if如果；unless除非；because因为；after在……后。根据上文“我们将无法得到好座位”可知，与下文“我们在网上早早订票”呈否定假设关系，应用unless连接。故选B。 29．—I don’t know how to improve my Chinese. —Err... no other way ________ you work harder. A．until B．since C．when D．unless 【答案】D 【详解】句意：——我不知道如何提高我的中文。——呃……除非你更加努力，否则别无他法。 考查连词辨析。until直到；since自从；when当……时候；unless除非。根据句意可知，空后的“you work harder”是空前的“ no other way”的否定条件，所以用unless引导条件状语从句。故选D。 30．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。 31．I’m afraid that we can’t _________ the math problem _________ the teacher helps us. A．work out; if B．work on; if C．work out; unless D．work on; unless 【答案】C 【详解】句意：恐怕我们解不出这道数学题，除非老师帮助我们。 考查动词短语和连词辨析。work out解出；work on从事于；if如果；unless除非。分析选项和“we can’t...the math problem...the teacher helps us.”可知，此处表示除非老师帮助我们，否则我们解不出这道数学题，第一空应用短语work out；第二空后的从句表示否定条件，所以应用unless引导此条件状语从句。故选C。 32．I will not give up __________ I achieve my dream. A．if B．unless C．but D．because 【答案】B 【详解】句意：我不会放弃，除非我实现了我的梦想。 考查连词辨析。if如果；unless除非；but但是；because因为。根据句子可知，后句是前句的否定条件，应用unless引导条件状语从句。故选B。 33．I’ll park my car at the Pacific Palace, ________ it is full near there. A．unless B．if C．because D．when 【答案】A 【详解】句意：我会把车停在太平洋宫殿，除非那附近已经满了。 考查从属连词辨析。unless除非；if如果；because因为；when当……时候。根据“it is full near there”可知，此处表示除非太平洋宫殿附近已经停满了，用unless引导条件状语从句。故选C。 34．You shouldn’t jump a queue __________ you have something important. A．if B．unless C．so D．but 【答案】B 【详解】句意：除非你有重要的事情，否则你不应该插队。 考查连词。if如果；unless除非、如果不；so所以；but但是。根据“You shouldn’t jump a queue ... you have something important.”可知，如果你没有重要的事情，你不应该插队。故选B。 35．Come on, Tom! You will surely achieve your dream ________ you give up halfway. A．after B．unless C．until D．if 【答案】B 【详解】句意：加油，汤姆！除非你中途放弃你的梦想，否则你一定会实现你的梦想。 考查连词辨析。after在……之后；unless除非，如果不；until直到；if如果。根据“you give up halfway”和“achieve your dream”可知是指如果不中途放弃你的梦想，你一定会实现你的梦想，用unless引导条件状语从句。故选B。 36．We will go for a picnic ________ it rains tomorrow. A．when        B．if        C．since        D．unless 【答案】D 【详解】句意：我们将要去野餐，除非明天下雨。 考查从属连词。when当……时；if如果；since因为；unless除非。主句“We will go for a picnic”意为“我们将要去野餐”，从句“it rains tomorrow”意为“明天下雨”，想要达成主句的结果需要不满足从句的条件。故选D。 37．________ he studies hard, he will never pass the examination. A．If       B．Unless        C．Even if        D．Even though 【答案】B 【详解】句意：除非他努力学习，否则他将永远不会通过考试。 考查连词词义辨析。if如果；unless除非；even if即使；even though即使。由句意和“he will never pass the examination”可知，前句是后句的否定条件，用unless引导条件状语从句。故选B。 38．The little boy won’t go to sleep unless his mom ________ a story. A．tells B．told C．is telling D．will tell 【答案】A 【详解】句意：这个小男孩不会睡觉除非他妈妈给他讲个故事。 考查状语从句时态。在条件状语从句中，遵循“主将从现”的原则。此句中主句是“The little boy won’t go to sleep”一般将来时的否定形式，从句“unless his mom…a story”要用一般现在时。从句的主语“his mom”是第三人称单数，“tell a story”意为“讲故事”，“tell”的第三人称单数形式是“tells”，故选A。 39．________ bad weather stops me, I can do outdoor sports every day. A．When B．Although C．Until D．Unless 【答案】D 【详解】句意：除非恶劣天气阻止我，否则我可以每天做户外运动。 考查连词辨析。When当……时候；Although虽然；Until直到……为止；Unless除非。分析句子可知，“bad weather stops me”是“I can do outdoor sports every day”的否定条件，即：如果不下雨，我就能天天做户外运动。故选D。 40．—Shall we go to Universal Beijing Resort this winter holiday?    —All right. ________ we ________ asked to stay in Taixing. A．If; will be B．Unless; are C．If; are D．Unless; will be 【答案】B 【详解】句意：——今年寒假我们可以去北京环球影城吗？——好的，除非我们被要求待在泰兴。 考查从属连词辨析和被动语态。if如果；unless除非。根据“we…asked to stay in Taixing”可知，除非被要求待在泰兴，否则就可以去北京环球影城，应用unless引导条件状语从句，且遵循“主将从现”原则，即从句中采用一般现在时，be asked to do sth“被要求做某事”，主语为we，be动词应用are。故选B。 题型三：as long as引导条件状语从句 41．—David, your dream will come true ________ you don’t give up easily. —Yes, you’re right. A．as soon as B．so that C．as long as D．even though 【答案】C 【详解】句意：——David，只要你不轻易放弃，你的梦想就会实现。——是的，你说的对。 考查连词辨析。as soon as一……就……；so that以便；as long as只要；even though即使。“you don’t give up easily”是“your dream will come true”的条件，应用as long as引导条件状语从句。故选C。 42．Don’t lose heart. You can make progress in English ________ you try your best. A．so that B．as soon as C．even though D．as long as 【答案】D 【详解】句意：不要灰心。只要你努力，你就能在英语上取得进步。 考查连词辨析。so that以便，为了；as soon as一……就……；even though尽管；as long as只要。根据“You can make progress in English...you try your best.”可知，只要努力，英语就能取得进步，此处应用as long as引导条件状语从句。故选D。 43．You may take the books away at a time ________ you give them all back on time. A．now that B．so that C．as soon as D．as long as 【答案】D 【详解】句意：只要你按时还书，你可以一次把书拿走。 考查连词辨析。now that既然；so that以便；as soon as一……就；as long as只要。“you give them all back on time”是“You may take the books away at a time”的条件，用as long as引导条件状语从句。故选D。 44．Tom believes all the problems can be solved in the end ________ he works hard. A．as soon as B．as long as C．as far as D．as if 【答案】B 【详解】句意：汤姆相信只要他努力工作，所有的问题最终都会得到解决。 考查连词辨析。as soon as一……就……；as long as只要；as far as就……而言；as if好像。根据“all the problems can be solved in the end…he works hard”可知，只要努力工作，问题最终会被解决，故选B。 45．—How about having a school trip tomorrow? —We will go _______ the weather is fine. A．as soon as B．as tall as C．as well as D．as long as 【答案】D 【详解】句意：——明天去学校旅行怎么样？——只要天气好，我们就去。 考查连词辨析。as soon as一……就；as tall as和……一样高；as well as和；as long as只要。“the weather is fine”是“We will go”的肯定条件，用as long as引导条件状语从句。故选D。 46．Don’t lose heart. You can make progress in English _________ you try your best. A．as long as B．as soon as C．even though D．so that 【答案】A 【详解】句意：不要灰心。只要你努力，你就能在英语上取得进步。 考查连词。as long as只要；as soon as一……就……；even though尽管；so that以便，为了。根据“You can make progress in English...you try your best.”可知，只要努力，英语就能取得进步，即“you try your best”是“You can make progress in English”的条件，是as long as引导的条件状语从句。故选A。 47．Zhang Guimei once said, “ _______ I’m alive, I will donate (献身) myself to teaching.” A．Even though B．As soon as C．As long as D．So that 【答案】C 【详解】句意：张桂梅曾说：“只要我活着，我就会把自己奉献给教学。” 考查连词辨析。even though即使；as soon as一……就；as long as只要；so that目的是。分析句子可知，前句是后句的条件，用as long as引导条件状语从句。故选C。 48．Joe, you can go to the party ________ you come back before 10: 00 o’clock tonight. A．as long as B．even though C．as soon as D．rather than 【答案】A 【详解】句意：乔，只要你今晚10点前回来，你就可以去参加晚会。 考查从属连词辨析。as long as只要；even though虽然；as soon as 一……就……；rather than而不是。根据“you come back before 10: 00 o’clock tonight.”可知，应该说“只要”你今晚 10点前回来，就可以去参加晚会。故选A。 49．We can make each tiny wish come true _________ we work hard. A．even though B．as long as C．so that D．as soon as 【答案】B 【详解】句意：只要我们努力，每个微小的愿望都能实现。 考查连词辨析。even though尽管；as long as只要；so that以便；as soon as一……就。“我们努力”是“每个微小的愿望都能实现”的条件，用as long as引导条件状语从句。故选B。 50．________ you stick to your rules, you will be the one who can manage your life well. A．By the way B．As well as C．As long as D．To begin with 【答案】C 【详解】句意：只要你坚持自己的规则，你就能很好地管理自己的生活。 考查条件状语从句的连词。By the way顺便说一下；As well as以及；As long as只要；To begin with首先。根据“…you stick to your rules, you will be the one who can manage your life well.”可知，只要坚持自己的规则，就能很好地管理自己的生活，用As long as引导条件状语从句。故选C。 51．We can have a better world to live in ________ we protect the environment. A．as much as B．as long as C．as soon as D．as far as 【答案】B 【详解】句意：只要我们保护环境，我们就能拥有一个更美好的世界。 考查条件状语从句。as much as多达；as long as只要；as soon as一……就；as far as就……而言。“we protect the environment”是“We can have a better world to live in”的肯定条件，用as long as引导条件状语从句。故选B。 52．— Paper cutting is a traditional Chinese art form. But it’s too difficult for me. — You won’t find it difficult ______ you develop your interest in it. A．though B．even if C．unless D．as long as 【答案】D 【详解】句意：——剪纸是中国传统的艺术形式，但对我来说太难了。——只要你对它产生兴趣，你就不会觉得它很难。 考查连词辨析。though虽然；even if即使；unless除非；as long as只要。分析句子可知，后句是前句的肯定条件，用as long as引导条件状语从句。故选D。 53．—What is your idea about friends? —They are like books. We don’t need a lot of them ________ they are good. A．as soon as B．as long as C．so that D．such as 【答案】B 【详解】句意：——你对朋友有什么看法？——它们就像书一样。只要它们是好的，我们就不需要太多。 考查连词。as soon as一……就；as long as只要；so that以便；such as比如。根据“We don’t need a lot of them…they are good.”可知是指只要它们是好的，我们就不需要太多。故选B。 54．________ you practice dancing hard, you’ll have the chance to be on the show. A．As soon as B．As long as C．As well as D．As far as 【答案】B 【详解】句意：只要你努力练习跳舞，你就会有机会出现在舞台上。 考查连词辨析。As soon as一……就……；As long as只要……就……；As well as和……一样好；As far as就……而言。根据“you practice dancing hard, you will have the chance to be on the show.”可知，“努力练习舞蹈”是“有机会出现在舞台上”的肯定条件，用as long as引导条件状语从句。故选B。 55．—Mom, can I go to the party tonight? —________ you come back before 10 o’clock tonight, dear. A．As long as B．As soon as C．As far as D．As well as 【答案】A 【详解】句意：——妈妈，我今晚能去参加聚会吗？——只要你今晚10点前回来，亲爱的。 考查条件状语从句。As long as只要；As soon as一……就……；As far as就……而言；As well as以及。根据“you come back before 10 o’clock tonight, dear.”可知，妈妈认为只要今晚10点前回来就可以去，用as long as引导条件状语从句，故选A。 56．—________ you keep healthy, nothing else matters. —I can’t agree with you more. A．As long as B．Even though C．As soon as D．Until 【答案】A 【详解】句意：——只要你有健康，其他都不重要。——我非常同意你的观点。 考查连词辨析。As long as只要；Even though即使；As soon as一……就……；Until直到。前句是后句的肯定条件，用as long as引导条件状语从句。故选A。 57．—We play better as a team now and our coach believes we will win. —There is no difficulty that we cannot get over ______ we bring together as one. A．even if B．so that C．in case D．as long as 【答案】D 【详解】句意：——我们现在作为一个团队打得更好，我们的教练相信我们会赢。——只要我们团结一致，就没有克服不了的困难。 考查连词辨析。even if即使，尽管；so that为了；in case以防万一；as long as只要。根据“There is no difficulty that we cannot get over...we bring together as one.”可知，只要团结一致，就没有克服不了的困难，故选D。 58．Everything is possible ________ you work hard. A．as much as B．as soon as C．as long as D．as far as 【答案】C 【详解】句意：只要你努力工作，一切皆有可能。 考查词汇辨析。as much as多达；as soon as一……就……；as long as只要；as far as就……而言。分析句子可知，此处指只要努力，一切皆有可能，应用as long as连接，引导条件状语从句。故选C。 59．Your dream will come true ________ you work hard. A．as long as B．as soon as C．even though D．at once 【答案】A 【详解】句意：只要你努力，你的梦想就会实现。 考查连词辨析。as long as只要；as soon as一……就……；even though即使；at once立刻。根据空后“努力”是空前“实现梦想”的条件，所以空格处用as long as引导条件状语从句，故选A。 60．We will make few mistakes ________ we are careful enough. A．so that B．as soon as C．as long as D．even if 【答案】C 【详解】句意：只要我们足够细心，我们就会少犯错误。 考查连词辨析。so that以便，表目的；as soon as一……就，表时间；as long as只要，表条件；even if尽管，表让步。根据题干“We will make few mistakes…we are careful enough”，可知细心是少犯错误的条件，结合选项，需用as long as引导条件状语从句。故选C。 题型四：条件状语从句综合训练（较难） 61．I won’t go to the party unless my best friend Mary ________ too. A．will invite B．invites C．is invited D．will be invite 【答案】C 【详解】句意：我不去参加聚会除非我最好的朋友玛丽也被邀请。 考查动词的时态和语态。根据“unless”可知是条件状语从句，遵循“主将从现”的原则，主句是“won’t”是一般将来时，从句用一般现在时；主语“Mary”是单数，且和动词“invite”之间构成逻辑上的动宾关系，应用被动语态，所以用一般现在时的被动语态“is invited”。故选C。 62．Do you know if Tom ________ next Tuesday? If he ________, please call me. A．comes; comes B．will come; will come C．will come; comes D．comes; will come 【答案】C 【详解】句意：你知道汤姆下周二是否会来吗？如果他来，请给我打电话。 考查宾语从句和状语从句。第一句为宾语从句，根据时间状语“ next Tuesday”可知时态用一般将来时，第一个空填will come；第二句为状语从句，主句为祈使句，从句用一般现在时，第二个空填comes。故选C。 63．He ________ go unless you ________ him. A．won’t; invite B．doesn’t; invite C．doesn’t; will invite D．won’t; will invite 【答案】A 【详解】句意：除非你邀请他，否则他不会去。 考查unless引导条件状语从句和条件状语从句的主将从现。unless引导条件状语从句时，表示“除非”，unless等于if……not。此题是由unless引导条件状语从句，如果主句是将来时或表示将来含义时，从句要用一般现在时。故选A。 64．—I really want to join the square dance. Can I learn the dance well? —Yes, Mom! Nothing is impossible_______________you put your heart into it! A．as long as B．as soon as C．even if D．unless 【答案】A 【详解】句意：-我真的很想参加广场舞。我能学好舞蹈吗? -是的, 妈妈! 世上无难事，只要你要用心去做! A. as long as 只要，引导条件状语从句；B. as soon as一…就…, 引导时间状语从句；C. even if 即使，引导让步状语从句；D. unless除非，引导条件状语从句。“用心去做”是“世上无难事”的条件，选用肯定的条件状语从句的关联词as long as或if。故选A。 点睛：掌握谚语、格言Nothing is impossible if/ as long as you put your heart into it!世上无难事只怕有心人，明确主从句之间的关系，确定相应的关联词。 65．The hero Odysseus got back home safely ______ he met a lot of dangers during the journey. A．as soon as B．so that C．if D．although 【答案】D 【详解】句意：英雄奥德修斯即使在旅途中遇到了很多危险，但还是安全地回家了。 考查连词。as soon as一……就……，引导时间状语从句；so that以便，引导目的状语从句；if如果，引导条件状语从句；although尽管，引导让步状语从句。分析语境可知，后半句是一个让步状语从句，空处表示“尽管”。故选D。 66．—I want to know if your pen friend ________ tomorrow. —If she ________ tomorrow, we’ll give her a big surprise. A．will come; will come B．will come; come C．will come; comes D．comes; will come 【答案】C 【详解】句意：——我想知道你的笔友明天是否会来。——如果她明天来，我们将给她一个大惊喜。 考查动词时态及if引导的从句。上文是if引导的宾语从句，适合“主现从不限”原则，根据“tomorrow”可知，时态是一般将来时，结构为will do。下文是if引导的条件状语从句，适合“主将从现”原则，从句应为一般现在时，主语是第三人称单数，故谓语动词用其单三形式。故选C。 67．I don’t know if it ________ tomorrow. If it ________, I won’t go. A．will rain; rains B．will rain; will rain C．rains; rains D．rains; will rain 【答案】A 【详解】句意：我不知道明天是否下雨。如果下雨，我将不会去。 考查一般将来时和一般现在时。第一空if表示“是否”，引导宾语从句，根据时间副词tomorrow，可知此处用一般将来时；第二空if表示“如果”，引导条件状语从句，主句用一般将来时，从句要用一般现在时，即主将从现。故选A。 68．We can go to foreign countries ________ the COVID-19 virus is ________ control. A．unless; under B．if; out of C．unless; out of D．if; under 【答案】D 【详解】句意：如果新冠肺炎病毒得到控制，我们可以去国外。 考查条件状语从句和介词辨析。unless除非，引导条件状语从句；under在下面；if如果；out of越出……之外。根据“the COVID-19 virus is…control.”可知，第一个空应该是由if引导的条件状语从句；第二个空是be under control，得到控制。故选D。 69．Sorry sir, your order ________ if you fail to pay for it in 15 minutes. A．canceled B．is canceled C．was canceled D．will be canceled 【答案】D 【详解】句意：对不起，先生，如果您在15分钟内不付款，您的订单将被取消。 考查条件状语从句和被动语态。根据“if you fail to…”可知，此句属于含if引导的条件状语从句的复合句，遵循主将从现原则，从句谓语“fail to pay for…”为一般现在时，则主句应用一般将来时；主句主语your order与动词cancel逻辑上存在动宾关系，应用被动语态，所以此处应用一般将来时的被动语态，其结构是will be done。故选D。 70．—Jack, how about going hiking tomorrow? —OK, ________ it rains heavily. A．unless B．until C．while D．if 【答案】A 【详解】句意：——杰克，明天去远足怎么样？——好的，除非下大雨。 考查连词词义辨析。unless除非，引导条件状语从句；until直到，引导时间状语从句；while当……时候，引导时间状语从句；if如果，引导条件状语从句。根据“...it rains heavily”可知，是一个条件状语从句，意思是“下大雨就不去了”，空格处表示“除非”，故选A。 71．More mistakes ________ and corrected if you go over the paper carefully for the second time. A．are found B．have been found C．can be found D．will find 【答案】C 【详解】句意：如果你再认真检查一遍试卷，更多的错误会被发现并得到纠正。 考查条件状语从句和含情态动词的被动语态。根据if可知，本句为条件状语从句，符合“主将从现、主情从现”原则，即主句为一般将来时或含有情态动词，从句为一般现在时。本句中mistakes和find之间存在被动关系，应用被动语态，因此主句应使用一般将来时的被动语态或含情态动词的被动语态。故选C。 72．I don’t know if she tomorrow. If she ,let me know. A．comes；comes B．will come；comes C．comes；will come D．will come；will come 【答案】B 【详解】句意：我不知道她明天是否回来。 如果来，让我知道。If连词，有两种用法：一、引导宾语从句，意思是“是否”，当主句是一般现在时态时，从句为你所需要的任意时态；二、引导条件状语从句，意思是“如果”，时态遵循“主将从现”的原则。第一个空使用将来时；第二个空使用一般现在时代替将来时。所以选B。 73．Lots of people exercise every morning_________bad weather stops them. A．if B．unless C．until D．since 【答案】B 【详解】考查连词词义辨析。A. if“如果”；B. unless“除非；如果不”；C. until“直到”；D. since“自从；既然”。句意：很多人每天早晨锻炼 _______ 恶劣的天气阻拦他们。结合选项的意思和句意可知，用unless。故选B。 74．一Mum, will you take me to the park tomorrow? 一If it _______ rainy. A．won’t B．doesn’t C．isn’t D．won’t be 【答案】C 【详解】句意：——妈妈，你明天会带我去公园吗？——如果不下雨的话。 考查条件状语从句。A. won’t将不；B. doesn’t不；C. isn’t不；D. won’t be将不。if引导的条件状语从句遵循“主将从现”的时态原则，主句用了一般将来时，if引导的从句则用一般现在时，故排除AD。否定形容词借助be动词，否定实意动词借助助动词，因为rainy为形容词，所以用be动词， 故选C。 75．_______ you taste the meat, you can’t imagine how delicious it tastes. A．Because B．Unless C．When D．Though 【答案】B 【详解】句意：除非你尝过这肉，否则你无法想象它有多好吃。   考查连词。Because因为；Unless除非；When当……的时候；Though尽管。根据“_______ you taste the meat, you can’t imagine how delicious it tastes.”_______你尝过肉，否则你无法想象它有多好吃。可知，这里用unless。符合语境。故选B。 76．If we don’t protect nature, some wildlife___________ die out in the future. A．need B．may C．can’t D．shouldn’t 【答案】B 【详解】句意：如果我们不保护自然，一些野生动物将来可能会灭绝。 考查情态动词。need需要；may可能；can’t可能不，一定不；shouldn’t不应该。根据句意可知，空处表示肯定推测；结合选项可知，选项里表肯定推测的情态动词只有may，可能会灭绝may die out符合语境。故选B。 77．We’re not sure if it ________ tomorrow. If it ________, we won’t climb the South Hill. A．will rain, rains B．will rain, will rain C．rains, rains D．rains, will rain 【答案】A 【详解】句意：我们不能确定明天是否将要下雨。如果下雨的话，我们将不去爬南山。 考查动词时态。分析句子结构可知，第一个空格处是if引导的宾语从句；再者根据“tomorrow”可知，动词要用一般将来时will rain；第二个空格处是if引导的条件状语从句，主句用一般将来时，从句要用一般现在时，且从句主语是第三人称单数，因此rains符合句意。故选A。 78．—The students of Grade 9 in Changchun have to take part in the P.E. test from 2016. —Yes. ________ you want to pass it and be stronger, practice more. A．Until B．If C．Unless D．Or 【答案】B 【详解】句意：——长春九年级的学生从2016年开始必须参加体育测试。——是的，如果你想通过它并且更强壮，需要多练习。 考查连词辨析。until直到；if如果；unless除非；or否则。根据句中的信息可知，practice more是you want to pass it and be stronger的条件，所以用if引导条件状语从句，故选B。 79．— I’m not sure if he ________  tomorrow. — Don’t worry. I think if he ________, he will give you a call. A．will come; will come B．will come; comes C．comes; will come D．comes; comes 【答案】B 【详解】句意：—— 我不确定他明天是否会来。—— 别担心。我想如果他来了，他会给你打电话的。 考查宾语从句和条件状语从句。根据“I’m not sure”可知，此句是宾语从句，if意为“是否”；再者根据“tomorrow”可知，此句时态用一般将来时，因此第一空will come符合句意；根据“he will give you a call”可知，第二个if意为“如果”，是条件状语从句，结合“主将从现原则”，此空应用一般现在时，主语是第三人称单数，因此第二空comes符合句意。故选B。 80．I don’t know if Nancy ________ to the mountains tomorrow. If she doesn’t, ________. A．goes; neither I will B．will go; neither will I C．goes; neither I do D．will go; neither do I 【答案】B 【详解】句意：我不知道南希明天是否会去爬山。如果她不去，我也不去。 考查动词时态和倒装句。第一空所在句是if引导的宾语从句，根据“主现从不限”原则可知，从句时态不受限制，由“tomorrow”可知，从句用一般将来时，排除A、C；第二空所在句是if引导的条件状语从句，遵循“主将从现”原则，且第二空表示上面的情况同样适用于另一主语，表“……也不”，因此用neither will I，意为“我也不去”。故选B。 81．You can’t go out with your friends ________ you have finished your book report. A．while B．because C．although D．unless 【答案】D 【详解】句意：除非你写完读书报告，否则你不能和你的朋友出去。 考查连词辨析。while当……时；because因为；although尽管；unless除非。根据“You can’t go out with your friends … you have finished your book report”可知，除非写完报告，否则不能出去，故选D。 82．I don’t know if he __________ tomorrow. If he __________, I will call you. A．will come, comes B．comes, will come C．comes, comes D．will come, will come 【答案】A 【详解】句意：我不知道他明天是否来。如果他来，我会打电话给你。 考查时态。第一空位于宾语从句中，根据时间状语“tomorrow”可知，用一般将来时；在时间或条件状语从句中，可以用一般现在时代替将来时。第二空考查主句是一般将来时，if条件句应用一般现在时态表将来。故选A。 83．Life on the Earth will become uneasy _________ population growth is under control. A．although B．because C．unless D．when 【答案】C 【详解】句意：除非人口增长得到控制，否则地球上的生活将变得不安。 考查连词辨析。although虽然；because因为；unless除非；when当……时。“population growth is under control”是“Life on the Earth will become uneasy”的否定条件，用unless引导条件状语从句，故选C。 84．—Will you please tell Robin to come early to help us get ready for the party? —All right. I’ll tell him at once ________. A．if I see him B．if I’ll see him C．until1see him D．until I’ll see him 【答案】A 【详解】句意：——请你告诉Robin早点来帮我们准备聚会好吗？——好的，如果我看见他，我立刻告诉他。 考查状语从句。根据“ I’ll tell him at once”可知此处表条件，如果看到他，就立刻告诉他，用if引导条件状语从句，遵循主将从现原则，从句用一般现在时代替一般将来时。故选A。 85．Your dream will come true _________ you give it up half way. Hang in there! A．if B．until C．unless D．because 【答案】C 【详解】句意：如果你中途不放弃，你的梦想就会实现。坚持住！ 考查连词辨析。if如果，引导条件状语从句；until直到，引导时间状语从句；unless除非，引导条件状语从句；because因为，引导原因状语从句。结合语境分析，后半句是一个条件状语从句，空处表示“除非”。故选C。 86．Some people think they may keep them to themselves ________ they have problems. A．though B．so C．if D．until 【答案】C 【详解】句意：有些人认为，如果他们有问题，他们可能会保守秘密。 考查连词辨析。though尽管；so所以；if如果；until直到。根据“Some people think they may keep them to themselves...they have problems.”可知前后是条件关系，表示“如果有问题，可能会保守秘密”，故选C。 87．— I want to know if there ________ a sports meeting next month. — If it ________, what kind of sport will you take part in? A．will be, comes B．will be, will come C．is, comes D．is, will come 【答案】A 【详解】句意：——我想知道下个月是否有运动会。——如果有，你会参加什么运动？ 考查If的用法。根据“I want to know if ”可知，此处if表示“是否”，结合next month，句子时态是一般将来时，will be符合句意；再者根据“what kind of sport will you take part in”可知，此处if表示“如果”，遵循主将从现原则，从句时态是一般现在时，因此comes符合句意。故选A。 88．Unless you avoid charging your cellphone all the time, the battery inside it ________ easily. A．damages B．is damaged C．will damage D．will be damaged 【答案】D 【详解】句意：除非你一直避免给手机充电，否则手机内的电池很容易损坏。 考查一般将来时的被动语态。此题是由unless引导条件状语从句，如果主句是将来时或表示将来含义时，从句要用一般现在时。此题的主句的主语the battery与动词damage之间是被动关系，因此应该用被动语态，这里的主语用一般将来时，故此处是一般将来时的被动语态。故选D。 89．I think you should complain, ________ of course, you are happy with the product. A．unless B．because C．until D．though 【答案】A 【详解】句意：我认为你应该抱怨，当然，除非你对产品满意。 考查连词。unless除非，引导条件状语从句；because因为，引导原因状语从句；until直到，引导时间状语从句；though虽然，引导让步状语从句。分析语境可知，后半句是一个条件状语从句，空处表示“除非”。故选A。 90．Only by practicing a few hours every day ________ be able to master (掌握) English. A．you have B．will you C．you will D．have you 【答案】B 【详解】句意：只有每天练习几个小时，你才能掌握英语。 考查倒装句。根据“Only by practicing a few hours every day”可知only置于句首，此处用部分倒装，助动词置于主语之前。又因为是条件状语从句，从句用一般现在时，主句用一般将来时，助动词为will。故选B。 91．—Jim has made _______ great progress in the Physics exam that his teacher feels surprised. —It’s hard for him to get high marks _______ he works hard enough. A．so a; until B．such a; before C．so; while D．such; unless 【答案】D 【详解】句意：——Jim在物理考试中取得很大进步，这让老师感觉很惊讶。——除非他足够努力，否则他很难得高分。 考查状语从句。so如此，修饰形容词或副词；such如此，修饰名词；until直到；before在……之前；while当……时；unless除非。make progress表示“取得进步”，progress不可数名词，用such修饰；“he works hard enough.”是条件，用unless引导条件状语从句。故选D。 92．—It seems that you keep taking some exercise all the time. —Yeah. I won’t feel well ________ I play sports every day. A．as soon as B．unless C．if D．though 【答案】B 【详解】句意：——看起来你一直坚持锻炼。——是。除非我每天做运动，否则我不会感到舒服。 考查从属连词辨析。as soon as一……就；unless除非；if如果；though尽管。根据“I won’t feel well ...I play sports every day.”可知此句是条件状语从句，表否定条件，用unless连接。故选B。 93．—Labor（劳动）education is important for students’ development. —Yes. ________ schools put it into practice, students will be more independent and helpful. A．While B．Unless C．If D．And 【答案】C 【详解】句意：——劳动教育对学生的发展是很重要的。——是的。如果学校把它付诸实践，学生会更加独立和乐于助人。 考查连词用法。While当……时；Unless除非；If如果；And和。根据“schools put it into practice, students will be more independent and helpful.”可知，句子前后是条件关系，则应用连词if。故选C。 94．________ I entered my thirties, I have realized that I can’t change a person ________ he is willing to change himself. A．When; because B．After; unless C．Since; unless D．When; if 【答案】C 【详解】句意：自从我三十多岁，我意识到我不能改变一个人，除非他愿意改变自己。 考查连词辨析。when当……时；because因为；after在……之后；unless除非；since自从；if如果。根据“entered”及“have realized”可知，第一空是since引导的时间状语从句，从句用一般过去时，主句用现在完成时，ABD都可以排除。根据“I can’t change a person … he is willing to change himself”可知，除非自己愿意改变，否则无法改变一个人，第二空填unless，故选C。 95．—Thank you for telling me so much about nature. —Don’t mention it. If you have questions, ________ to me any time. A．comes B．to come C．come D．coming 【答案】C 【详解】句意：——谢谢你告诉我这么多关于自然的事情。——别客气。如果你有其他问题，随时来找我。 考查if引导的条件状语从句。由“If you have questions, … to me any time”可知，此处指如果你有问题，你可以随时来找我，省略了you can。故选C。 96．You can’t go home ________ your homework ________. A．unless; finished B．if; finished C．unless; is finished D．if; is finished 【答案】C 【详解】句意：除非你的作业完成了否则你不能回家。 考查条件状语从句、时态和语态。unless除非，如果不；if如果；finished是一般过去时；is finished是一般现在时的被动语态；根据句意可知，如果你的作业不完成，就不能回家。故第一空填unless。unless（如果不）引导的条件状语从句，主句一般用一般将来时或含有情态动词的句子，从句使用一般现在时。因homework与动词finish之间是被动关系，需用一般现在时的被动语态, 其结构是am/is/are+过去分词。故选C。 97．— I want to know if Maria ________ us in the fashion show tonight. — I believe if she ________ her homework, she will join us. A．joins; finishes B．will join; finishes C．joins; will finish D．will join; will finish 【答案】B 【详解】句意：——我想知道玛丽亚是否会参加今晚的时装表演。——我相信如果她能完成作业，她就会加入我们。 考查宾语从句和条件状语从句。第一句根据“know ”可知if引导的是宾语从句，主句是一般现在时，从句时态不受限制，由“tonight”可知从句时态是一般将来时；第二句根据“if she...her homework, she will join us.”可知这是一个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，故选B。 98．—What will you do with these old computers？ —We will have to use them unless new ones________ A．buy B．will buy C．will be bought D．are bought 【答案】D 【详解】句意：——你将怎么处理这些旧电脑？——除非买新的，否则我们将不得不使用它们。 考查被动语态。根据主语和谓语动词之间是动宾关系，故用被动语态。unless引导的条件状语从句规则：若主句为一般将来时，那么从句常用一般现在时表将来，即主将从现，故使用一般现在时的被动语态。故选D。 99．In summer, food will go bad quickly ________ we put it into a fridge. A．if B．unless C．as soon as D．while 【答案】B 【详解】句意：夏天，除非我们把食物放进冰箱里，否则食物很快就会变坏。A. if如果；B. unless除非；C. as soon as一……就；D. while正当……的时候。根据生活常识，在夏天只有放在冰箱里的食物才能保证不变质，unless除非，如果不，相当于if not，引导条件状语从句，故答案为B。 100．—Let’s go climbing if it____this Saturday. — Good idea. But nobody knows if it . A．is fine; rains B．is fine; will rain C．will be fine; rains D．will be fine; will rain 【答案】B 【详解】句意：——如果这个星期六天气好，我们去爬山吧。  ——好主意。但没人知道会不会下雨。第一个空if引导的是条件状语从句，因此从句用一般现在时表示将来，is fine；第二个空if引导的是宾语从句，根据第一句的时间状语this Saturday可知，要用一般将来时，一般将来时的构成是will+动词原形。故选B。 2 原创精品资源学科网独家享有版权，侵权必究！ 7 原创精品资源学科网独家享有版权，侵权必究！ 学科网（北京）股份有限公司 $$ Unit5 The human brain 重点语法：条件状语从句100题（四大题型，分层练习） 目录 语法知识精讲 1 语法知识精练 1 题型一：if/only if引导条件状语从句 1 题型二：unless引导条件状语从句 7 题型三：as long as引导条件状语从句 12 题型四：条件状语从句综合训练（较难） 17 语法知识精讲 常用连接词：if, unless, as/so long as，on condition that等。 1.unless = if not Let's go out for a walk unless you are too tired. =If you are not too tired, let's go out for a walk. 2.主将从现原则 As long as you feed him, he will be cooperative. 3.祈使句+and/or/other wise +一般将来时 If you use your head, you’ll find a way. =Use your head and you’ll find a way. 语法知识精练 题型一：if/only if引导条件状语从句 1．Our country will be better ________ we all do something to help. A．if B．before C．but D．unless 2．—Can students go online during lessons? —They can ________ it is for that lesson. A．and B．but C．if D．so 3．If Nancy ________ her friend’s invitation, she will be very unhappy. A．refuse B．refused C．refuses D．will refuse 4．If you are lazy in spring, you ________ nothing in autumn. A．harvested B．will harvest C．are harvesting D．have harvested 5．—If Nick ________ home too late, he ________ his favourite cartoon. —I think so. A．gets; misses B．gets; will miss C．will get; misses D．will get; will miss 6．—Let’s go to the community if it ________ tomorrow.   —But nobody knows if it ________ tomorrow. A．won’t rain; rains B．doesn’t rain; rains C．won’t rain; will rain D．doesn’t rain; will rain 7．________ you are under too much pressure, some classical music might just help. A．Unless B．If C．Because D．Although 8．—Linda, let’s have a picnic this Sunday. —Sounds good. If I ________ my homework, I will go with you. A．finish B．finished C．will finish D．have finished 9．Our city will be much better ________ we all do something to help. A．before B．if C．so that D．even though 10．We will have little water to drink ______ we don’t save it. A．if B．unless C．until D．though 11．They will stay at home ________ the weather is terrible. A．so that B．although C．if D．but 12．If you ________ in the exam, you will let your mother down. A．fail B．failed C．will fail D．have failed 13．________ you are too tired to do all the things on your To-Do list, try a To-Don’t list. A．If B．Until C．Although D．Unless 14．If you go to Kunming in winter, you_______ lots of birds from the north of China. A．see B．saw C．will see D．have seen 15．Success _________ if you keep working hard towards your goals . A．achieve B．will achieve C．can be achieved D．was achieved 16．I wonder ________ it bothers you. ________ you don’t want to come, please let me know. A．if; If B．whether; Whether C．if; Whether D．if; Weather 17．I wonder _______ he will come tomorrow or not. ________ he comes, please let me know at once. A．whether; If B．if; Whether C．that; If D．whether; Whether 18．—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 19．—I doubt if he ________ to the party with us tonight. What do you think? —I believe if he ________ his homework tonight, he will go with us. A．will go; will finish B．will go; finishes C．goes; finishes D．goes; will finish 20．—Sam, do you know if Alice ________ to my party next week? —I think she will come if she ________. A．will come; will be invited B．comes; is invited C．will come; is invited D．comes; will be invited 题型二：unless引导条件状语从句 21．It’s difficult to get to that far city ________ you have a car. A．since B．after C．unless D．because 22．Practice is very important. You will forget the new words ______ you often use them. A．when B．unless C．if D．until 23．You will not take the lead ________ you put your whole heart into the final exam. A．unless B．whenever C．though D．since 24．You won’t improve your ability _________ you practise playing the piano regularly. A．if B．unless C．as soon as D．until 25．You’ll be late for school _________ you take a taxi. A．unless B．as C．if D．until 26．Lots of people exercise every morning ________ bad weather stops them. A．if B．until C．unless D．since 27．Scientists say that there will be more plastic in the ocean than fish by 2050, ________ something is done to stop plastic pollution. A．after B．though C．unless D．because 28．—I want to go to the Happiness Opera House to watch the talk show next week. —Well, we won’t be able to get good seats ________ we book the tickets online early. A．if B．unless C．because D．after 29．—I don’t know how to improve my Chinese. —Err... no other way ________ you work harder. A．until B．since C．when D．unless 30．Please don’t feed animals at the zoo, ________ the animal keeper allows you to do so. A．if B．unless C．and D．but 31．I’m afraid that we can’t _________ the math problem _________ the teacher helps us. A．work out; if B．work on; if C．work out; unless D．work on; unless 32．I will not give up __________ I achieve my dream. A．if B．unless C．but D．because 33．I’ll park my car at the Pacific Palace, ________ it is full near there. A．unless B．if C．because D．when 34．You shouldn’t jump a queue __________ you have something important. A．if B．unless C．so D．but 35．Come on, Tom! You will surely achieve your dream ________ you give up halfway. A．after B．unless C．until D．if 36．We will go for a picnic ________ it rains tomorrow. A．when        B．if        C．since        D．unless 37．________ he studies hard, he will never pass the examination. A．If       B．Unless        C．Even if        D．Even though 38．The little boy won’t go to sleep unless his mom ________ a story. A．tells B．told C．is telling D．will tell 39．________ bad weather stops me, I can do outdoor sports every day. A．When B．Although C．Until D．Unless 40．—Shall we go to Universal Beijing Resort this winter holiday?    —All right. ________ we ________ asked to stay in Taixing. A．If; will be B．Unless; are C．If; are D．Unless; will be 题型三：as long as引导条件状语从句 41．—David, your dream will come true ________ you don’t give up easily. —Yes, you’re right. A．as soon as B．so that C．as long as D．even though 42．Don’t lose heart. You can make progress in English ________ you try your best. A．so that B．as soon as C．even though D．as long as 43．You may take the books away at a time ________ you give them all back on time. A．now that B．so that C．as soon as D．as long as 44．Tom believes all the problems can be solved in the end ________ he works hard. A．as soon as B．as long as C．as far as D．as if 45．—How about having a school trip tomorrow? —We will go _______ the weather is fine. A．as soon as B．as tall as C．as well as D．as long as 46．Don’t lose heart. You can make progress in English _________ you try your best. A．as long as B．as soon as C．even though D．so that 47．Zhang Guimei once said, “ _______ I’m alive, I will donate (献身) myself to teaching.” A．Even though B．As soon as C．As long as D．So that 48．Joe, you can go to the party ________ you come back before 10: 00 o’clock tonight. A．as long as B．even though C．as soon as D．rather than 49．We can make each tiny wish come true _________ we work hard. A．even though B．as long as C．so that D．as soon as 50．________ you stick to your rules, you will be the one who can manage your life well. A．By the way B．As well as C．As long as D．To begin with 51．We can have a better world to live in ________ we protect the environment. A．as much as B．as long as C．as soon as D．as far as 52．— Paper cutting is a traditional Chinese art form. But it’s too difficult for me. — You won’t find it difficult ______ you develop your interest in it. A．though B．even if C．unless D．as long as 53．—What is your idea about friends? —They are like books. We don’t need a lot of them ________ they are good. A．as soon as B．as long as C．so that D．such as 54．________ you practice dancing hard, you’ll have the chance to be on the show. A．As soon as B．As long as C．As well as D．As far as 55．—Mom, can I go to the party tonight? —________ you come back before 10 o’clock tonight, dear. A．As long as B．As soon as C．As far as D．As well as 56．—________ you keep healthy, nothing else matters. —I can’t agree with you more. A．As long as B．Even though C．As soon as D．Until 57．—We play better as a team now and our coach believes we will win. —There is no difficulty that we cannot get over ______ we bring together as one. A．even if B．so that C．in case D．as long as 58．Everything is possible ________ you work hard. A．as much as B．as soon as C．as long as D．as far as 59．Your dream will come true ________ you work hard. A．as long as B．as soon as C．even though D．at once 60．We will make few mistakes ________ we are careful enough. A．so that B．as soon as C．as long as D．even if 题型四：条件状语从句综合训练（较难） 61．I won’t go to the party unless my best friend Mary ________ too. A．will invite B．invites C．is invited D．will be invite 62．Do you know if Tom ________ next Tuesday? If he ________, please call me. A．comes; comes B．will come; will come C．will come; comes D．comes; will come 63．He ________ go unless you ________ him. A．won’t; invite B．doesn’t; invite C．doesn’t; will invite D．won’t; will invite 64．—I really want to join the square dance. Can I learn the dance well? —Yes, Mom! Nothing is impossible_______________you put your heart into it! A．as long as B．as soon as C．even if D．unless 65．The hero Odysseus got back home safely ______ he met a lot of dangers during the journey. A．as soon as B．so that C．if D．although 66．—I want to know if your pen friend ________ tomorrow. —If she ________ tomorrow, we’ll give her a big surprise. A．will come; will come B．will come; come C．will come; comes D．comes; will come 67．I don’t know if it ________ tomorrow. If it ________, I won’t go. A．will rain; rains B．will rain; will rain C．rains; rains D．rains; will rain 68．We can go to foreign countries ________ the COVID-19 virus is ________ control. A．unless; under B．if; out of C．unless; out of D．if; under 69．Sorry sir, your order ________ if you fail to pay for it in 15 minutes. A．canceled B．is canceled C．was canceled D．will be canceled 70．—Jack, how about going hiking tomorrow? —OK, ________ it rains heavily. A．unless B．until C．while D．if 71．More mistakes ________ and corrected if you go over the paper carefully for the second time. A．are found B．have been found C．can be found D．will find 72．I don’t know if she tomorrow. If she ,let me know. A．comes；comes B．will come；comes C．comes；will come D．will come；will come 73．Lots of people exercise every morning_________bad weather stops them. A．if B．unless C．until D．since 74．一Mum, will you take me to the park tomorrow? 一If it _______ rainy. A．won’t B．doesn’t C．isn’t D．won’t be 75．_______ you taste the meat, you can’t imagine how delicious it tastes. A．Because B．Unless C．When D．Though 76．If we don’t protect nature, some wildlife___________ die out in the future. A．need B．may C．can’t D．shouldn’t 77．We’re not sure if it ________ tomorrow. If it ________, we won’t climb the South Hill. A．will rain, rains B．will rain, will rain C．rains, rains D．rains, will rain 78．—The students of Grade 9 in Changchun have to take part in the P.E. test from 2016. —Yes. ________ you want to pass it and be stronger, practice more. A．Until B．If C．Unless D．Or 79．— I’m not sure if he ________  tomorrow. — Don’t worry. I think if he ________, he will give you a call. A．will come; will come B．will come; comes C．comes; will come D．comes; comes 80．I don’t know if Nancy ________ to the mountains tomorrow. If she doesn’t, ________. A．goes; neither I will B．will go; neither will I C．goes; neither I do D．will go; neither do I 81．You can’t go out with your friends ________ you have finished your book report. A．while B．because C．although D．unless 82．I don’t know if he __________ tomorrow. If he __________, I will call you. A．will come, comes B．comes, will come C．comes, comes D．will come, will come 83．Life on the Earth will become uneasy _________ population growth is under control. A．although B．because C．unless D．when 84．—Will you please tell Robin to come early to help us get ready for the party? —All right. I’ll tell him at once ________. A．if I see him B．if I’ll see him C．until1see him D．until I’ll see him 85．Your dream will come true _________ you give it up half way. Hang in there! A．if B．until C．unless D．because 86．Some people think they may keep them to themselves ________ they have problems. A．though B．so C．if D．until 87．— I want to know if there ________ a sports meeting next month. — If it ________, what kind of sport will you take part in? A．will be, comes B．will be, will come C．is, comes D．is, will come 88．Unless you avoid charging your cellphone all the time, the battery inside it ________ easily. A．damages B．is damaged C．will damage D．will be damaged 89．I think you should complain, ________ of course, you are happy with the product. A．unless B．because C．until D．though 90．Only by practicing a few hours every day ________ be able to master (掌握) English. A．you have B．will you C．you will D．have you 91．—Jim has made _______ great progress in the Physics exam that his teacher feels surprised. —It’s hard for him to get high marks _______ he works hard enough. A．so a; until B．such a; before C．so; while D．such; unless 92．—It seems that you keep taking some exercise all the time. —Yeah. I won’t feel well ________ I play sports every day. A．as soon as B．unless C．if D．though 93．—Labor（劳动）education is important for students’ development. —Yes. ________ schools put it into practice, students will be more independent and helpful. A．While B．Unless C．If D．And 94．________ I entered my thirties, I have realized that I can’t change a person ________ he is willing to change himself. A．When; because B．After; unless C．Since; unless D．When; if 95．—Thank you for telling me so much about nature. —Don’t mention it. If you have questions, ________ to me any time. A．comes B．to come C．come D．coming 96．You can’t go home ________ your homework ________. A．unless; finished B．if; finished C．unless; is finished D．if; is finished 97．— I want to know if Maria ________ us in the fashion show tonight. — I believe if she ________ her homework, she will join us. A．joins; finishes B．will join; finishes C．joins; will finish D．will join; will finish 98．—What will you do with these old computers？ —We will have to use them unless new ones________ A．buy B．will buy C．will be bought D．are bought 99．In summer, food will go bad quickly ________ we put it into a fridge. A．if B．unless C．as soon as D．while 100．—Let’s go climbing if it____this Saturday. — Good idea. But nobody knows if it . A．is fine; rains B．is fine; will rain C．will be fine; rains D．will be fine; will rain 2 原创精品资源学科网独家享有版权，侵权必究！ 7 原创精品资源学科网独家享有版权，侵权必究！ 学科网（北京）股份有限公司 $$