Unit 6 Life in the future 条件状语从句（单元核心语法精练）英语沪教版五四学制2024八年级上册

Unit 6 Life in the future 条件状语从句（单元核心语法精练） 引导词 从句时态 主句时态 核心规则与用法 例句 if（如果） 一般现在时 一般将来时 / 情态动词（can/may）/ 祈使句 描述可能发生的情况，遵循 “主将从现” If you study hard, you will pass. unless（除非，=if not） 一般现在时 一般将来时 / 情态动词 / 祈使句 表 “如果不”，否定条件，时态同 if Unless it rains, we will go out. as long as（只要） 一般现在时 一般将来时 / 情态动词 强调条件的充分性，“只要… 就…” As long as you try, you can succeed. on condition that（如果） 一般现在时 / 一般过去时 对应将来时 / 过去将来时 表严格条件，语气较正式 I’ll help on condition that you join. 一、单项选择 1．—Can I go out and play now? —Not ________ you’ve done your homework. A．when B．unless C．if D．after 【答案】B 【详解】句意：——我现在能出去玩吗？——不能，除非你已经写完作业。 考查连词辨析。when当……时；unless除非；if如果；after在……之后。根据句意可知, 此处指的是除非做完了作业，否则不能出去玩。故选B。 2．—I don’t know if it will be sunny tomorrow. —If it ________ tomorrow, I will stay at home. A．will rain B．rains C．to rain D．raining 【答案】B 【详解】句意：——我不知道明天是不是晴天。——如果明天下雨，我将会待在家里。 考查动词时态。分析题干可知，if引导条件状语从句，时态遵循“主将从现”原则，主句使用一般将来时，从句使用一般现在时，从句主语it为第三人称单数，谓语动词用第三人称单数形式rains。故选B。 3．—I hear the famous singer Tony may come to Changchun next month. —Really? ________ he comes, my younger sister will be excited. A．If B．Until C．Unless D．However 【答案】A 【详解】句意：——我听说著名歌手Tony下个月可能会来长春。——真的吗？如果他来了，我妹妹会非常兴奋。 考查连词辨析。If如果；Until直到；Unless除非；However然而。根据“he comes, my younger sister will be excited.”可知，此处表示假设条件，且前句是后句的肯定条件。故选A。 4．—Mum, can I help you clean the house? — Of course, ________ you would like to. A．because B．but C．till D．if 【答案】D 【详解】句意：——妈妈，我能帮你打扫房间吗？——当然，如果你愿意的话。 考查连词辨析。because因为；but但是；or或者；if如果。根据“Of course...you would like to.”可知如果你愿意的话，可以帮我打扫房间，故选D。 5．The PE teacher said, “You will finish the 800-meter race successfully ________ you keep running without stopping.” A．as far as B．even though C．as long as D．as well as 【答案】C 【详解】句意：体育老师说：“只要你不停地跑，你就能成功跑完800米。” 考查条件状语从句。as far as就……而言；even though即使；as long as只要；as well as以及。根据“You will finish the 800-meter race successfully…you keep running without stopping.”的语境可知，此处强调“如果满足某个条件，就会发生某事”，C项符合。故选C。 6．The fairy said to the prince, “________ you break the spell (咒语), the princess and the whole castle will wake up from their deep sleep.” A．Once B．However C．Moreover D．So that 【答案】A 【详解】句意：仙女对王子说：“一旦你打破了这个咒语，公主和整个城堡里的所有人就会从沉睡中苏醒过来。” 考查副词辨析。Once一旦，引导条件状语从句；However然而，表转折；Moreover此外，表递进；So that以便，引导目的状语从句。根据“...you break the spell (咒语), the princess and the whole castle will wake up from their deep sleep.”可知，此处表示“打破咒语”是唤醒公主的必要条件，故选A。 7．________ you get the news of the girl, please tell her parents as soon as possible. A．Once B．Until C．Although D．But 【答案】A 【详解】句意：一旦你得到那个女孩的消息，请尽快告诉她的父母。 考查连词辨析。Once一旦；Until直到……为止；Although尽管；But但是。根据“...you get the news of the girl, please tell her parents”可知表示“得到消息后立刻告知”，需用“Once”引导条件状语从句。故选A。 8．The temperature is rising. Food will go bad quickly ________ we put it into a fridge. A．unless B．before C．since D．until 【答案】A 【详解】句意：温度在上升。除非我们把食物放进冰箱里，否则食物会很快变坏。 考查连词辨析。unless除非，如果不；before在……之前；since自从，既然；until直到……时候。根据句意可知，这里表示“如果不把食物放进冰箱，它就会很快变坏”，应用unless引导条件状语从句。故选A。 9．________ we take immediate action, global warming will get more serious. A．Unless B．As C．If D．When 【答案】A 【详解】句意：除非我们立即采取行动，否则全球变暖将变得更加严重。 考查从属连词辨析。Unless除非，如果不；As因为；If如果；When当……时候。根据“…we take immediate action, global warming will get more serious.”可知，如果不行动，全球变暖会更严重，前一句是后一句的否定条件，用unless引导条件状语从句。故选A。 10．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。 11．________ you don’t know what a word means, you can guess its meaning first. A．After B．So C．Because D．If 【答案】D 【详解】句意：如果你不知道一个单词的意思，你可以先猜测它的意思。 考查连词辨析。After在……之后；So所以；Because因为；If如果。根据“you don’t know what a word means”可知，此处表示假设条件，引导条件状语从句用if。故选D。 12．You can go out ________ you promise (许诺) to be back before 11 o’clock. A．as good as B．as far as C．as long as D．as short as 【答案】C 【详解】句意：你可以出去，只要你答应在11点以前回来。 考查连词辨析。as good as几乎；as far as就……而言；as long as只要；as short as和……一样短。由于“you promise to be back before 11 o’clock”是可以出去的条件，用as long as引导条件状语从句。故选C。 13．—What are you watching through the window? —The rain. I’m going to the school library ________ it stops. A．before B．because C．until D．if 【答案】D 【详解】句意：——你透过窗户正在看什么？——雨。如果它停了，我打算去学校图书馆。 考查连词。before在……之前；because因为；until直到；if如果。根据句意，需要表示“如果它停了，我打算去学校图书馆。”这一含义，要使用“if”表示“如果”。故选D。 14．________ you work together, you will be able to finish the task quickly. A．As long as B．As soon as C．As well as D．As far as 【答案】A 【详解】句意：只要你们一起工作，你们将能够快速完成任务。 考查连词辨析。As long as只要；As soon as一……就……；As well as和……一样；As far as就……而言。结合语境可知，此处强调满足“一起工作”这个条件，就会出现“快速完成任务”的结果，“As long as”意为“只要；如果”，引导条件状语从句，契合句子逻辑。故选A。 15．—Keep working hard, Paul. You will surely realize your dream of being a writer ________ you give it up halfway. —Thanks for your support, Miss Wang. A．if B．since C．unless D．though 【答案】C 【详解】句意：——继续努力，保罗。如果你半途不放弃，你就一定能实现成为作家的梦想。——谢谢你的支持，王老师。 考查连词辨析。if如果；since自从/既然；unless除非/如果不；though尽管。根据“you will surely realize your dream…you give it up halfway（实现梦想的条件是不放弃）”可知，所以空后“you give it up halfway”是空前“You will surely realize your dream of being a writer”的否定条件，用unless引导条件状语从句。故选C。 16．You can’t pass the exam ________ you listen to the teachers carefully in class. A．unless B．whether C．if D．until 【答案】A 【详解】句意：除非你在课堂上仔细听老师讲课，否则你不会通过考试。 考查连词辨析。unless除非，如果不；whether是否；if如果；until直到。根据“you listen to the teachers carefully in class.”可知，这里表示“如果不……就不会通过考试”，因此用unless引导条件状语从句。故选A。 17．He won’t catch the train _________ he leaves early. A．as soon as B．until C．unless D．while 【答案】C 【详解】句意：除非他早点出发，否则他赶不上火车。 考查连词辨析。as soon as一……就……；until直到；unless除非；while当……时。根据“He won’t catch the train ... he leaves early.”可知，是指除非早点出发，否则赶不上火车，用unless引导条件状语从句。故选C。 18．I won’t have enough time to study ________ I watch TV so often. A．if B．although C．but D．so 【答案】A 【详解】句意：如果我经常看电视，我就没有足够的时间学习了。 考查连词辨析。if如果；although虽然；but但是；so所以。后句是前句的肯定条件，用if引导条件状语从句。故选A。 19．If we _________ to understand each other, we will build a stronger friendship. A．will learn B．learn C．won’t learn D．don’t learn 【答案】B 【详解】句意：如果我们互相学习理解，我们会建立更强的友谊。 考查条件状语从句用法。本句为If引导的条件状语从句，遵循“主将从现”，主句用一般将来时，从句应用一般现在时，根据“to understand each other, we will build a stronger friendship.”并结合选项可知，如果我们互相学习理解，我们会建立更强的友谊，故从句为肯定句，主语为we，动词learn需原形。故选B。 20．________ she invites me, I ________ to her birthday party. A．Because; went B．When; went C．So; will go D．If; will go 【答案】D 【详解】句意：如果她邀请我，我将去参加她的生日派对。 考查连词辨析和时态。Because因为；When当……时；So因此；If如果。根据“…she invites me, I…to her birthday party.”可知，此句是指如果她邀请我，我就会去参加她的生日派对，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，主句要用一般将来时，故选D。 二、完成句子 1．只要你不断努力，你最终会成功。 you keep on working hard, you will finally succeed. 【答案】As long as 【详解】根据中英文对照可知，此处缺“只要”，译为as long as，引导条件状语从句，句子开头首字母大写。故填As long as。 2．Students will get tired if you don’t give them a break. (改为同义句) Students will get tired you them a break. 【答案】 unless give 【详解】句意：如果你不给学生们休息，他们会感到疲倦。原句使用if引导条件状语从句，否定形式可以用unless表示“除非”，即“unless you give them a break”表示“除非你给他们休息”。主语是you，从句时态为一般现在时，动词give保持原形。故填unless；give。 3．Run fast, or you’ll be late for school. （改为同义句） you fast, you’ll be late for school. 【答案】 If don’t run 【详解】句意：快点跑，否则你上学就要迟到了。or表示“否则”，可以用if…not来替换，if“如果”引导条件状语从句，遵循“主将从现”，从句主语是you，run是实义动词，否定借助于助动词don’t，故填If；don’t；run。 4． ride a bike, if, the party, to, you’ll, you, be late (连词成句) 【答案】If you ride a bike to the party, you’ll be late./You’ll be late if you ride a bike to the party. 【详解】分析所给单词可知，该句是if引导的条件状语从句，if引导条件部分，“you ride a bike to the party”是条件从句，从句的位置不固定；“you’ll be late”是主句，意为“你会迟到”。故填If you ride a bike to the party, you’ll be late./You’ll be late if you ride a bike to the party.“如果你骑自行车去参加聚会，你会迟到的。/你会迟到的，如果你骑自行车去参加聚会。” 5．If we don’t improve health care, people won’t live longer. (用unless改写) 【答案】Unless we improve health care, people won’t live longer. 【详解】句意：如果不改善医疗保健，人们就不会活得更久。分析句子结构可知，句子是由if引导的条件状语从句；unless“除非，如果不”，连词，本身含有否定意义，相当于“if...not...”；改写时，需将“if we don’t improve health care”替换为“unless we improve health care”，其余部分保持不变，句子逻辑和语义一致，首字母要大写。故填Unless we improve health care, people won’t live longer. 6．We have a surprise party for Ms White. She is happy. (用if合并为一句话) we for Ms White, she . 【答案】 If have a surprise party will be happy 【详解】句意：我们要为怀特女士举办一个惊喜派对。她很高兴。用if合并句子，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，用if引导，句首首字母大写，主语是we，谓语动词用原形，其他部分不变；主句用一般将来时，结构为“will + 动词原形”，is改为be ，其他部分不变。故填If；have；a；surprise；party；will；be；happy。 7．You can’t play games unless you finish your homework. (变同义句) You can’t play games you finish your homework. 【答案】 if don’t 【详解】句意：除非你完成作业，否则你不能玩游戏。unless“除非，如果不”，相当于if...not。本句时态为一般现在时，finish“完成”是实义动词，变为否定要借助助动词don’t。故填if；don’t。 8．nothing, possible, is, you, make, happen, it, unless（连词成句） . 【答案】Nothing is possible unless you make it happen/Unless you make it happen, nothing is possible 【详解】根据所给标点可知可以构成陈述句或条件状语从句 。分析所给单词，“nothing”可作主语 ，“is possible”是系表结构作谓语；“unless”引导条件状语从句，“you”作从句主语，“make it happen”是从句谓语和宾语。所以可连成“Nothing is possible unless you make it happen” ；也可将“Unless you make it happen”放句首，构成“Unless you make it happen, nothing is possible.” 故填Nothing is possible unless you make it happen./Unless you make it happen, nothing is possible“没有什么是可能的，除非你让它发生”/“除非你让它发生，否则没有什么是可能的” 。 9．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”。 10．If you don’t talk to someone, you’ll feel worse．(对画线部分提问)    if you don’t talk to someone? 【答案】 What will happen 【详解】句意：如果你不和别人说话，你会感到更糟。要求对画线部分提问。根据画线部分feel worse，可知句意为“如果你不和别人说话，将会发生什么？”特殊疑问词用what“什么”，will“将”，happen“发生”，故答案为(1). What (2). will (3). happen 三、选词填空 Complete the following passage with the words or phrases in the box. Each can only be used once. (将下列单词或词组填入空格。每空格限填一词或词组，每词或词组只能填一次) A．floating      B．less      C． flight       D．progress      E. solve Great 1 will be made in medicine, too. Perhaps a cure (疗法) will be discovered for the worst of all diseases—cancer. Pollution is a problem that we must 2 . Pollution will be controlled. There will be 3 pollution in a hundred years. We will use up most of the earth’s land to build our cities. So 4 cities will be built. The Japanese already have plans for cities of this kind. And there will be cities under the sea. 【答案】1．D 2．E 3．B 4．A 【导语】本文是一篇说明文，主要讲述了未来在医学、污染控制和城市建设方面可能取得的进步。 1．句意：医学也将取得巨大进步。 根据“Great...will be made in medicine”可知，此处填名词，progress“进步”符合语境。故选D。 2．句意：污染是我们必须解决的问题。 根据“a problem that we must...”可知，solve“解决”与problem搭配，且must后接动词原形。故选E。 3．句意：一百年后污染会更少。 根据“Pollution will be controlled”可推知，污染减少，less“更少”修饰不可数名词pollution。故选B。 4．句意：因此将建造漂浮的城市。 根据“cities under the sea”和选项A“floating”可知，此处指建在水上的城市。故选A。 Complete the following passage with the words or phrases in the box. Each can only be used once. (将下列单词或词组填入空格。每个空格限填一词或词组，每词或词组只能填一次。) A．holidays   B．put on   C． possible   D．like    E. set up We often think of future. We often wonder what the world will be 1 in a hundred years’ time. Think of space. Perhaps people will 2 a permanent (永久的) station on the moon. Perhaps people will be able to visit the moon as tourists. Cheap rockets for space travel will be developed. It is 3 for people to have long journeys throughout the solar system. When that time comes, people will be able to take 4 in space and visit other planets. A．floating    B．less    C． flight    D．progress    E. solve Great 5 will be made in medicine, too. Perhaps a cure (疗法) will be discovered for the most of all  diseases—cancer. Pollution is a problem that we must 6 . Pollution will be controlled. There will be 7 pollution in a hundred years. We will use up most of the earth’s land to build our cities. So 8 cities will be built. The Japanese already have plans for cities of this kind. And there will be cities under the sea. 【答案】1．D 2．E 3．C 4．A 5．D 6．E 7．B 8．A 【导语】本文主要探讨了未来一百年世界可能发生的变化，包括太空探索、医学进步、污染控制以及城市建设等方面的发展。 1．句意：我们经常想知道一百年后的世界会是什么样子。根据“what the world will be...in a hundred years’ time”可知，空处需要填入一个表示“像”或“样子”的词，结合所给词汇可知，介词like“像……一样”符合语境。故选D。 2．句意：也许人们会在月球上建立一个永久性基地。根据所给词汇和“Perhaps people will...a permanent (永久的) station on the moon.”可知，此处表示“建立一个永久性基地”，动词短语set up“建立”符合语境。故选E。 3．句意：人们有可能在整个太阳系进行长途旅行。根据“It is+形容词+for sb. to do sth.”句型可知，空处缺少形容词，结合所给词汇可知，形容词possible“可能的”符合语境。故选C。 4．句意：当那一天到来时，人们将能够在太空度假，并造访其他星球。take holidays“度假”。故选A。 5．句意：医学也将取得巨大进步。根据所给词汇和“Great...will be made in medicine”可知，此处表示“取得巨大进步”，不可数名词progress“进步”符合语境。故选D。 6．句意：污染是我们必须解决的问题。根据“Pollution is a problem that we must...”可知，我们必须解决污染问题，动词solve“解决”符合语境。故选E。 7．句意：一百年后会有更少的污染。根据“There will be...pollution in a hundred years.”可知，空处缺少形容词修饰名词pollution，结合所给词汇可知，形容词比较级less“更少的”符合语境。故选B。 8．句意：所以漂浮的城市将会被建造。根据所给词汇和“So...cities will be built.”可知，此处指“漂浮的城市”，形容词floating“漂浮的”符合语境。故选A。 四、短文填空 根据内容填写所缺单词或用所给单词的正确形式填空，使语篇意思完整。 What will our world be like in 2050? We aren’t quite sure, but it’s interesting to 1 (make) some 2 (predict). Languages English should still be the 3 (much) popular language, but Chinese should be the second. Now, many 4 (foreign) are 5 (study) Chinese as their second language. In the future, many other languages will 6 (disappearance) . Water Water will become as expensive as oil, 7 many rivers will disappear. We will have 8 save water and pay more for clean water. Education and Science More students will study online. Students from all over 9 world may study together on the Internet. We may eat more genetically modified (转基因的) food. And more robots will do hard and 10 (tire) jobs for us. 【答案】 1．make 2．predictions 3．most 4．foreigners 5．studying 6．disappear 7．because 8．to 9．the 10．tiring 【导语】本文通过对2050年世界在语言、水资源、教育与科学等方面的预测，展现未来世界可能呈现的模样。 1．句意：我们不是十分确定，但是做一些预测是很有趣的。根据it’s+形容词+to do sth.做某事是……的可知，此处需要用动词原形，故填make。 2．句意：做一些预测。根据“some”后接可数名词复数或不可数名词；predict意为“预测”是动词，其名词形式prediction为可数名词，此处需要用复数形式。故填predictions。 3．句意：英语应该仍然是最受欢迎的语言。根据空后“popular”为多音节形容词，其最高级形式需在前面加most，the most popular表示“最受欢迎的”，符合语境。故填most。 4．句意：许多外国人。根据“many”后接可数名词复数，“foreign”意为“外国的”是形容词，其名词形式为foreigner，此处需要填复数形式。故填foreigners。 5．句意：许多外国人正在把汉语作为他们的第二语言来学习。根据空前有be动词“are”，此处构成现在进行时，结构为“be+现在分词”，study的现在分词是studying，故填studying。 6．句意：在未来，许多其他语言将会消失。根据“will”是助动词可知，后接动词原形，disappearance意为“消失”是名词，其动词形式为disappear。故填disappear。 7．句意：水将会变得和油一样贵，因为许多河流将会消失。根据句意可知，前句“水会变得和油一样贵”与后句“许多河流会消失”为因果关系，后句是原因，because意为“因为”用于引导原因状语从句。故填because。 8．句意：我们将不得不节约用水，并且为干净的水支付更多的钱。“have to”为固定短语，意为“不得不”，后接动词原形。故填to。 9．句意：来自全世界的学生可能会在互联网上一起学习。“all over the world”是固定短语，意为“全世界”。故填the。 10．句意：并且更多的机器人将会为我们做艰苦且令人疲倦的工作。根据空后“jobs”意为工作，属于事物，需用形容词 tiring“令人疲倦的”修饰。故填tiring。 阅读下面短文，在空白处填入一个恰当的单词或用括号内所给单词的适当形式填空。 I think life in the future 1 (be) more comfortable than now, because there will be 2 (few) people living on the earth in the future. We may live on another planet. There is no 3 (pollute) and people will plant more trees and flowers on it, 4 the environment on that planet may be better 5 that on the earth. People will get there by rocket and they won’t spend a lot of money 6 (travel) in the rocket, because it will be very cheap. Before the trip, everyone will only need 7 (buy) a ticket and the spacesuit (航天服). The spacesuit will make people do things more 8   (easy) on the planet. They will also bring 9 (they) phones. That is enough, because there will be houses, banks and shops, I think. Everyone in the future will enjoy their life. Do you agree 10 me? 【答案】 1．will be 2．fewer 3．pollution 4．so 5．than 6．travelling/traveling 7．to buy 8．easily 9．their 10．with 【导语】本文是一篇说明文，介绍了未来人们移居到另一个行星上生活的设想。 1．句意：我认为未来的生活将会比现在更舒适，因为未来地球上生活的人会更少。根据“in the future”可知，时态为一般将来时，结构是“will be”。故填will be。 2．句意：我认为未来的生活将会比现在更舒适，因为未来地球上生活的人会更少。根据“more comfortable than now”及语境可知，此处含比较之意，表示未来住在地球上的人更少，few的比较级是fewer。故填fewer。 3．句意：没有污染，人们会在上面种更多的树和花，所以那个星球上的环境可能比地球上的好。根据“There is no...”可知，此处应填名词，pollute是动词，名词形式是pollution，是不可数名词。故填pollution。 4．句意：没有污染，人们会在上面种更多的树和花，所以那个星球上的环境可能比地球上的好。根据“people will plant more trees and flowers on it”和“the environment on that planet may be better... that on the earth.”可知，空处前后为因果关系，前因后果，所以填连词so。故填so。 5．句意：没有污染，人们会在上面种更多的树和花，所以那个星球上的环境可能比地球上的好。根据“the environment on that planet may be better... that on the earth.”可知，此处是将“未来移居的星球的环境”与“地球环境”作比较，应用than“比”。故填than。 6．句意：人们将乘坐火箭到达那里，他们不会花很多钱乘坐火箭旅行，因为它将非常便宜。spend money doing sth“花钱做某事”，是固定用法，travel的动名词形式是travelling或traveling。故填travelling/traveling。 7．句意：在旅行之前，每个人只需要买一张票和宇航服。will后接动词原形，所以此处need是实义动词，need to do sth“需要做某事”。故填to buy。 8．句意：宇航服将使人们在这个星球上做事情更容易。根据“do things more...”可知，此处应填副词修饰动词do， easy的副词形式是easily。故填easily。 9．句意：他们也会带他们的手机。根据“phones”可知，此处应填形容词性物主代词，they是主格，对应的形容词性物主代词是their。故填their。 10．句意：你同意我的看法吗？agree with sb“同意某人的观点”，是固定短语。故填with。 2 / 12 1 / 12 学科网（北京）股份有限公司 $ Unit 6 Life in the future 条件状语从句（单元核心语法精练） 引导词 从句时态 主句时态 核心规则与用法 例句 if（如果） 一般现在时 一般将来时 / 情态动词（can/may）/ 祈使句 描述可能发生的情况，遵循 “主将从现” If you study hard, you will pass. unless（除非，=if not） 一般现在时 一般将来时 / 情态动词 / 祈使句 表 “如果不”，否定条件，时态同 if Unless it rains, we will go out. as long as（只要） 一般现在时 一般将来时 / 情态动词 强调条件的充分性，“只要… 就…” As long as you try, you can succeed. on condition that（如果） 一般现在时 / 一般过去时 对应将来时 / 过去将来时 表严格条件，语气较正式 I’ll help on condition that you join. 一、单项选择 1．—Can I go out and play now? —Not ________ you’ve done your homework. A．when B．unless C．if D．after 2．—I don’t know if it will be sunny tomorrow. —If it ________ tomorrow, I will stay at home. A．will rain B．rains C．to rain D．raining 3．—I hear the famous singer Tony may come to Changchun next month. —Really? ________ he comes, my younger sister will be excited. A．If B．Until C．Unless D．However 4．—Mum, can I help you clean the house? — Of course, ________ you would like to. A．because B．but C．till D．if 5．The PE teacher said, “You will finish the 800-meter race successfully ________ you keep running without stopping.” A．as far as B．even though C．as long as D．as well as 6．The fairy said to the prince, “________ you break the spell (咒语), the princess and the whole castle will wake up from their deep sleep.” A．Once B．However C．Moreover D．So that 7．________ you get the news of the girl, please tell her parents as soon as possible. A．Once B．Until C．Although D．But 8．The temperature is rising. Food will go bad quickly ________ we put it into a fridge. A．unless B．before C．since D．until 9．________ we take immediate action, global warming will get more serious. A．Unless B．As C．If D．When 10．We can have a wonderful future ________ we work hard. A．if B．unless C．so D．although 11．________ you don’t know what a word means, you can guess its meaning first. A．After B．So C．Because D．If 12．You can go out ________ you promise (许诺) to be back before 11 o’clock. A．as good as B．as far as C．as long as D．as short as 13．—What are you watching through the window? —The rain. I’m going to the school library ________ it stops. A．before B．because C．until D．if 14．________ you work together, you will be able to finish the task quickly. A．As long as B．As soon as C．As well as D．As far as 15．—Keep working hard, Paul. You will surely realize your dream of being a writer ________ you give it up halfway. —Thanks for your support, Miss Wang. A．if B．since C．unless D．though 16．You can’t pass the exam ________ you listen to the teachers carefully in class. A．unless B．whether C．if D．until 17．He won’t catch the train _________ he leaves early. A．as soon as B．until C．unless D．while 18．I won’t have enough time to study ________ I watch TV so often. A．if B．although C．but D．so 19．If we _________ to understand each other, we will build a stronger friendship. A．will learn B．learn C．won’t learn D．don’t learn 20．________ she invites me, I ________ to her birthday party. A．Because; went B．When; went C．So; will go D．If; will go 二、完成句子 1．只要你不断努力，你最终会成功。 you keep on working hard, you will finally succeed. 2．Students will get tired if you don’t give them a break. (改为同义句) Students will get tired you them a break. 3．Run fast, or you’ll be late for school. （改为同义句） you fast, you’ll be late for school. 4． ride a bike, if, the party, to, you’ll, you, be late (连词成句) 5．If we don’t improve health care, people won’t live longer. (用unless改写) 6．We have a surprise party for Ms White. She is happy. (用if合并为一句话) we for Ms White, she . 7．You can’t play games unless you finish your homework. (变同义句) You can’t play games you finish your homework. 8．nothing, possible, is, you, make, happen, it, unless（连词成句） . 9．he studies harder than before/Sam won’t make any progress (选词成句 if, when, because,unless) . 10．If you don’t talk to someone, you’ll feel worse．(对画线部分提问)    if you don’t talk to someone? 三、选词填空 Complete the following passage with the words or phrases in the box. Each can only be used once. (将下列单词或词组填入空格。每空格限填一词或词组，每词或词组只能填一次) A．floating      B．less      C． flight       D．progress      E. solve Great 1 will be made in medicine, too. Perhaps a cure (疗法) will be discovered for the worst of all diseases—cancer. Pollution is a problem that we must 2 . Pollution will be controlled. There will be 3 pollution in a hundred years. We will use up most of the earth’s land to build our cities. So 4 cities will be built. The Japanese already have plans for cities of this kind. And there will be cities under the sea. Complete the following passage with the words or phrases in the box. Each can only be used once. (将下列单词或词组填入空格。每个空格限填一词或词组，每词或词组只能填一次。) A．holidays   B．put on   C． possible   D．like    E. set up We often think of future. We often wonder what the world will be 1 in a hundred years’ time. Think of space. Perhaps people will 2 a permanent (永久的) station on the moon. Perhaps people will be able to visit the moon as tourists. Cheap rockets for space travel will be developed. It is 3 for people to have long journeys throughout the solar system. When that time comes, people will be able to take 4 in space and visit other planets. A．floating    B．less    C． flight    D．progress    E. solve Great 5 will be made in medicine, too. Perhaps a cure (疗法) will be discovered for the most of all  diseases—cancer. Pollution is a problem that we must 6 . Pollution will be controlled. There will be 7 pollution in a hundred years. We will use up most of the earth’s land to build our cities. So 8 cities will be built. The Japanese already have plans for cities of this kind. And there will be cities under the sea. 四、短文填空 根据内容填写所缺单词或用所给单词的正确形式填空，使语篇意思完整。 What will our world be like in 2050? We aren’t quite sure, but it’s interesting to 1 (make) some 2 (predict). Languages English should still be the 3 (much) popular language, but Chinese should be the second. Now, many 4 (foreign) are 5 (study) Chinese as their second language. In the future, many other languages will 6 (disappearance) . Water Water will become as expensive as oil, 7 many rivers will disappear. We will have 8 save water and pay more for clean water. Education and Science More students will study online. Students from all over 9 world may study together on the Internet. We may eat more genetically modified (转基因的) food. And more robots will do hard and 10 (tire) jobs for us. 阅读下面短文，在空白处填入一个恰当的单词或用括号内所给单词的适当形式填空。 I think life in the future 1 (be) more comfortable than now, because there will be 2 (few) people living on the earth in the future. We may live on another planet. There is no 3 (pollute) and people will plant more trees and flowers on it, 4 the environment on that planet may be better 5 that on the earth. People will get there by rocket and they won’t spend a lot of money 6 (travel) in the rocket, because it will be very cheap. Before the trip, everyone will only need 7 (buy) a ticket and the spacesuit (航天服). The spacesuit will make people do things more 8   (easy) on the planet. They will also bring 9 (they) phones. That is enough, because there will be houses, banks and shops, I think. Everyone in the future will enjoy their life. Do you agree 10 me? 2 / 12 1 / 12 学科网（北京）股份有限公司 $