Unit 6 Traveling around Asia 重点语法：if引导的条件状语从句精讲练80题-2024-2025学年七年级英语上册重难点讲练全攻略（沪教版2024）

Unit6 Travelling around Asia 重点语法：if引导的条件状语从句精讲练80题 语法知识精讲 条件状语从句 1．if和unless引导的条件状语从句。if表示正面的条件，意为“如果”；unless(＝if ... not)表示反面的条件，意为“除非，如果不”。 If you had come a few minutes earlier, you would have met him. 要是你早来几分钟就碰到他了。 You'll fail the exam unless you study hard(＝if you don't study hard)． 除非你努力学习，否则你考试会不及格。 2．in case, on condition that等词汇意思相近，意为“万一，假使，假如，在……条件下”。 In case there is a fire, what will we do first? 万一发生火灾，我们首先要做什么？ They agreed to lend us the car on condition that we returned it before the weekend. 他们同意把车借给我们，条件是我们在周末前归还。 3．as long as(＝so long as)引导语气强烈的条件状语从句，意为“只要”。 As long as you don't lose heart, you will succeed. 你只要不灰心，就会成功。 4．在“祈使句＋and/or/or else/otherwise＋陈述句”句型中，祈使句在意义上相当于条件状语从句。 Run faster and you'll catch the bus. 跑快点，你就会赶上公共汽车的。 Work hard, otherwise you'll fail. 努力干，要不你就会失败的。 5．if only “如果……就好了”和only if “只有”也可以引导条件状语从句。但是当only if置于句首时，主句部分倒装。 If only I were as clever as you. 我要是像你一样聪明就好了。 Only if a teacher has given permission is a student allowed to leave the classroom. 学生只有得到老师的许可才能离开教室。 语法知识精练 1．—Mom, let’s go to the zoo ________ it is fine tomorrow. —Sounds good. A．so B．or C．and D．if 【答案】D 【详解】句意：——妈妈，如果明天不下雨的话，我们就去动物园吧。——听起来很棒。 考查连词辨析。so所以；or或者；and并且；if如果。空格前后为两个完整的句子，空格处应填连词，且根据语境可知此处空格后为条件，应用if引导条件状语从句。故选D。 2．She can visit the Canton Tower if she ________ to Guangzhou. A．go B．goes C．won’t go D．doesn’t go 【答案】B 【详解】句意：如果他来广州，他会来参观广州塔。 考查动词时态。go去，动词原形；goes去，第三人称单数形式；won’t go不去，一般将来时的否定形式；doesn’t go不去，一般现在时的否定形式。根据题意可知，此句是一般现在时，if引导条件状语从句，要用主将从现的搭配形式，从句主语she是第三人称单数，谓语动词要用第三人称单数形式，go的单三形式是goes，这里是表示肯定的含义。故选B。 3．You can’t cross the street ________ the lights are red. A．if B．or C．but D．and 【答案】A 【详解】句意：如果是红灯，你就不能过马路。 考查连词辨析。if如果；or或者；but但是；and并且，和。根据“if lights are red”可知，如果是红灯，就不能过马路，应用if引导条件状语从句。故选A。 4．—Tomorrow is Sunday. What about going shopping together? —I will go ________ I’m free. A．before B．if C．until D．so 【答案】B 【详解】句意：——明天是星期天。一起去购物怎么样？——如果我有空，我就去。 考查连词辨析。before在……之前；if如果；until直到……为止；so因此。根据“I will go … I’m free”可知，空格后是前半句的肯定条件，用if引导条件状语从句，故选B。 5．I don’t know if he will come tomorrow. If he ________, I ________ you. A．comes, will call B．will come, will call C．comes, call D．will come, call 【答案】A 【详解】句意：我不知道他明天是否会来。如果他来了，我会打电话给你。 考查if条件句。根据“if”可知，此句是条件句，遵循主将从现原则，主句一般将来时，从句一般现在时，故选A。 6．If you ________ on Tuesday, you will not miss the wonderful game. A．will come B．comes C．come D．came 【答案】C 【详解】句意：如果你星期二来，你就不会错过这场精彩的比赛。 考查if引导的条件状语从句。根据“If you…on Tuesday, you will not miss the wonderful game.”可知，此处是if引导的条件状语从句，需遵循“主将从现”的原则，if引导的从句部分为一般现在时，主语是you，动词用原形。故选C。 7．The students will go to the Palace Museum if it ________ tomorrow. A．won’t rain B．isn’t raining C．doesn’t rain D．don’t rain 【答案】C 【详解】句意：如果明天不下雨，学生将会去故宫博物院。 考查if引导的条件状语从句。本句是if引导的条件状语从句，主句是一般将来时，从句用一般现在时表将来。it为单数，否定实义动词需借用助动词doesn’t，后接动词原形，故选C。 8．If you want to have a chat, ________ me up. A．calling B．call C．to call D．will call 【答案】B 【详解】句意：如果你想聊聊，给我打电话。 考查if条件句。根据“If you want to have a chat”可知，句子是if条件句，主句可以是祈使句，故选B。 9．________ winter comes, can spring be far behind? A．Because B．Before C．Though D．If 【答案】D 【详解】句意：如果冬天来了，春天还会远吗？ 考查连词辨析。Because因为；Before在……之前；Though虽然；If如果。根据“winter comes, can spring be far behind”可知，此处指的是“如果冬天来了”，应用if引导条件状语从句，故选D。 10．________ you don’t go to bed early, you can’t get up early tomorrow. A．If B．When C．Because D．Why 【答案】A 【详解】句意：如果你不早点上床睡觉，你明天就不能很早起床。 考查连词辨析。if 如果，表示条件；when 当……时候；because 因为；why为什么。根据“you don’t go to bed early, you can’t get up early tomorrow.”可知，前后两句话之间是条件关系，应用if引导条件状语从句，故选A。 11．—Can students use the computer in class? —They can ________ it is for that lesson. A．so B．if C．or D．but 【答案】B 【详解】句意：——学生们能在课堂上使用电脑吗？——如果是为了这节课，他们可以。 考查连词词义辨析。so所以；if如果；or或者；but但是。根据“They can…it is for that lesson.”的句意可知，此处表示条件关系。故选B。 12．If you ________ too much food, you ________ very fat. A．will eat; are B．eat; are C．eat; will be D．will eat; will be 【答案】C 【详解】句意：如果你吃太多的食物，你会很胖。 考查动词时态。此处是“If”引导的条件状语从句，遵循“主将从现”，即主句是一般将来时，可排除AB选项；从句是一般现在时，可排除D选项。故选C。 13．— Emma failed her exams. I think she should work harder. — I agree. ________ she does, she’ll get good grades. A．If B．Because C．Before D．Though 【答案】A 【详解】句意：——艾玛考试不及格。我认为她应该更加努力。——我同意。如果她这样做，她就会取得好成绩。 考查连词。If如果；Because因为；Before在……之前；Though尽管。if引导的条件状语从句用一般现在时，主句用一般将来时，故选A。 14．I’ll go swimming with you if I ________ free tomorrow. A．will be B．shall be C．was D．am 【答案】D 【详解】句意：如果我明天有空，我将和你一起去游泳。 考查条件状语从句的时态。if 意思是“如果”，在含有if的条件状语从句中，需符合“主将从现”的时态规则，即if引导的从句用一般现在时，主句用一般将来时。本题if 从句中be动词用一般现在时，且主语是I，所以填am。故选D。 15．________ you study hard, you’ll be good at English. A．Until B．If C．So D．But 【答案】B 【详解】句意：如果你努力学习，你将擅长英语。 考查连词。Until直到；If如果；So所以；But但是。在努力学习的条件下，你才能擅长英语，因此用连词if引导条件状语从句，故选B。 16．Most of the students will go to visit the exhibition if the weather _______ fine tomorrow. A．is B．are C．was D．will be 【答案】A 【详解】句意：如果明天天气好，大部分学生将去参观展览。 考查时态。本句是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“the weather”是不可数名词，所以谓语动词用is。故选A。 17．Let’s go to visit Shanghai Museum if you _______ free tomorrow. A．will be B．are C．were D．to be 【答案】B 【详解】句意：如果你明天有空，我们去参观上海博物馆吧。 考查含有if引导的条件状语从句。根据“Let’s go to visit Shanghai Museum if you…free tomorrow.”可知，本句为含有if引导的条件状语从句的主从复合句，主语为祈使句，则从句用一般现在时。故选B。 18．— I will go to the park with my parents if it ________ tomorrow. — Enjoy your time. A．rains B．will rain C．doesn’t rain D．won’t rain 【答案】C 【详解】句意：——如果明天不下雨，我将和父母一起去公园。——享受你的时光。 考查条件状语从句。句子是if引导的条件状语从句，主句用了一般将来时，从句要用一般现在时，排除选项B和D；根据“I will go to the park with my parents…”可知，此处是说如果不下雨就会去公园。故选C。 19．—I have some problems with my study. Can you help me? —Sure. ________ you listen carefully in class and do homework by yourself, you’ll make progress (进步). A．So B．And C．If D．But 【答案】C 【详解】句意：——我在学习上有些问题，你可以帮帮我吗？——当然可以。如果你在课上认真听讲，并且自己完成作业，那么你会取得进步的。 考查连词辨析。So所以；And和，又；If如果；But但是。根据“...you listen carefully in class and do homework by yourself, you’ll make progress (进步).”可知，“认真听课，并且自己完成作业”是“会取得进步的”前提条件，所以此空应用if“如果”引导的条件状语从句。故选C。 20．If you want to visit the Palace Museum, I ________ tickets for you tomorrow. A．buy B．buying C．will buy D．buys 【答案】C 【详解】句意：如果你想参观故宫博物院，我明天就给你买票。 考查动词时态。if引导的条件状语从句，从句用一般现在时，主句用一般将来时：will do。故选C。 21．If you ________ going shopping, you can go to Hong Kong. A．likes B．will like C．like D．liked 【答案】C 【详解】句意：如果你喜欢购物，你可以去香港。 考查一般现在时。likes动词第三人称单数，用于一般现在时；will like用于一般将来时；like动词原形，用于一般现在时；liked用于一般过去时。根据“If you…, going shopping, you can go to Hong Kong”可知是if引导的条件状语从句，主句含有情态动词can，从句要用一般现在时，因为从句的主语为you，故动词要用原形。故选C。 22．If you ________ any trouble, ________ me know. A．have, let B．will have, let C．have, will let D．will have, will let 【答案】A 【详解】句意：如果你有任何问题，请告诉我。 考查时态。分析句子结构可知，此处是由if引导条件状语从句，主句为祈使句，if从句要用一般现在时。故选A。 23．If Nick___________ home too late, he___________ his favourite cartoon. A．gets; will miss B．gets; misses C．will get; misses D．will get; will miss 【答案】A 【详解】句意：如果尼克到家太晚，他会错过他最喜欢的卡通片。 考查条件状语从句的主将从现。gets到达（三单）；will get将要达到（一般将来时）；misses错过（三单）；will miss（一般将来时）将要错过。根据句意可知，本句是if引导的条件状语从句，if引导的条件状语从句用一般现在时表示一般将来时，主句用一般将来时。故选A。 24．— The weather report says that it ________ tomorrow in most parts of our city. — If it ________ tomorrow, the sports meeting will be held next week. A．will rain; will rain B．will rain; rains C．rains; will rain D．rains; rains 【答案】B 【详解】句意：——天气报告说明天在我们城市大部分地区将会下雨。——如果明天下雨，运动会将会推迟到下周举办。 考查时态。第一空所在的句子是宾语从句，时态遵循“主现从不限”，根据空后“tomorrow”可知第一空用一般将来时；第二句if表示“如果”，引导条件状语从句，时态遵循“主将从现”，从句用一般现在时。故选B。 25．People at the community center ________ help if their fridge ________. A．will get; doesn’t work B．will get; won’t work C．get; doesn’t work D．get; won’t work 【答案】A 【详解】句意：如果人们的冰箱坏了，他们可以在社区中心得到帮助。 考查时态。get得到，work工作。if引导的条件状语从句用一般现在时，主句用一般将来时，故选A。 26．You need to practise speaking every day ________ you want to improve your spoken English. A．that B．so C．and D．if 【答案】D 【详解】句意：你需要每天练习说英语，如果你想提高你的英语口语。 考查连词辨析。that引导从句，无意义；so因此，接并列句；and和，接并列句；if如果，引导条件状语从句。由语境可知，此处表示假设的条件。故选D。 27．We’ll stay at home 　　　 it rains tomorrow. A．and B．if C．but D．so 【答案】B 【详解】句意：如果明天下雨的话我们就待在家里。 考查连词的辨析。and 和，表示并列和顺承关系；if如果，表示条件；but 但是，表示转折关系；so因此，表示因果关系。结合句意和语境可知，后半句表示条件，所以用if引导条件状语从句，故选B。 28．Fish _________ if there __________ no water. A．will die; is B．die; is C．will die; will be D．die; will be 【答案】A 【详解】句意：如果没有水，鱼将会死。 考查状语从句。if引导条件状语从句，主句用一般将来时“will do”，从句用一般现在时。故选A。 29．We will go on a trip to countryside if it ________ tomorrow. A．won’t rain B．rains C．doesn’t rain D．will rain 【答案】C 【详解】句意：如果明天不下雨，我们将要去乡村旅行。 考查动词时态。分析句子可知，本句是if引导的条件状语从句，遵循主将从现原则，故排除A、D；又根据句意可知，应该指如果明天不下雨，我们将会去旅行。故选C。 30．What will you do if you ________ your way? A．lose B．lost C．losing D．will lose 【答案】A 【详解】句意：如果迷路了你该怎么办？ 考查if引导的条件状语从句。根据分析句子“What will you do if you…your way?”可知，该句含有if引导的条件状语从句，遵循“主将从现”的原则，即主句时态是一般将来时，从句用一般现在时。故选A。 31．—Shall we invite Mr. White to our birthday party? —That will be nice if you ________. A．shall B．do C．will do D．are 【答案】B 【详解】句意：——我们邀请怀特先生参加我们的生日聚会好吗？——如果你这样做，那就太好了。 考查动词及时态。句子是if引导的条件状语从句，应用“主将从现”的原则，从句用一般现在时，排除A/C选项，结合语境可知，此处指的是“做”，应用动词do，故选B。 32．You can go to the zoo ________ you like to watch the animals. A．and B．if C．when D．after 【答案】B 【详解】句意：如果你喜欢看动物，你可以去动物园。 考查连词辨析。and和；if如果；when当……时；after在……之后。空格后面“you like to watch the animals”是“You can go to the zoo”的条件，用if引导条件状语从句，故选B。 33．The meat will go bad ________ you don’t put it in the fridge. A．though B．if C．until D．unless 【答案】B 【详解】句意：如果你不把肉放进冰箱，它就会变质。 考查从属连词。though尽管，用于引导让步状语从句；if如果，用于引导条件状语从句；until直到；unless除非，用于引导条件状语从句。根据“The meat will go bad…you don’t put it in the fridge.”可知，不把肉放入冰箱是肉变坏的肯定条件。故选B。 34．________ he works hard, he’ll get good grades. A．Because B．If C．Before D．When 【答案】B 【详解】句意：如果他努力学习，他将得到好的分数。 考查连词。Because因为；If如果；Before在……之前；When当……时。从句表达的是假设性的条件，所以应是If引导条件状语从句。故选B。 35．If she ________ to Beijing tomorrow, I ________ with her. A．goes, go B．will go, goes C．goes, will go D．go, will go 【答案】C 【详解】句意：如果她明天去北京，我将会和她一起去。 考查条件状语从句。if引导的条件状语从句，主将从现；she是第三人称，谓语动词用三单，故选C。 36．Our country will be much better for everyone in future ________ we all do something to help now. A．if B．before C．so that D．even though 【答案】A 【详解】句意：如果我们现在都做些什么来帮助大家，我们的国家在未来会更好。 考查连词辨析。if如果；before在之前；so that以便；even though即使。根据“Our country will be much better for everyone in future … we all do something to help now”可知，空格后是前半句的肯定条件，用if引导条件状语从句，故选A。 37．We will meet Britain friends ________ we have time. A．if B．so C．but D．and 【答案】A 【详解】句意：如果我们有时间，我们就去见英国朋友。 考查连词。if 如果（表条件）；so因此（表结果）；but但是（表转折）；and和（表并列）。“we have time”是“We will meet Britain friend”的条件，应用if引导条件状语从句，故选A。 38．I’m waiting for my friend. ________, I will go shopping alone (独自). A．If she comes B．If she will come C．If she doesn’t come D．If she came 【答案】C 【详解】句意：我正在等我的朋友。如果她不来，我将独自去购物。 考查if引导的条件状语从句。if引导的条件状语从句遵循主将从现原则，排除BD；if从句表示肯定的条件，将独自去购物的肯定条件是“如果她不来”，排除A。故选C。 39．—Lucy, the Dragon Boat Festival is coming. I want to learn how to make zongzi. —OK. If my grandma ________ free tomorrow, she will teach us. A．is B．are C．am D．will be 【答案】A 【详解】句意：——露西，端午节快到了。我想学习如何包粽子。——好的。如果我奶奶明天有空，她会教我们的。 考查主谓一致及动词时态。此处是含if引导的条件状语从句的复合句，遵循“主将从现”原则，从句应为一般现在时，主语是第三人称单数，应用be动词is。故选A。 40．If people ________ polluting the air, animals and plants ________ soon. A．don’t stop; will die B．don’t stop; died C．won’t stop; die D．won’t stop; will die 【答案】A 【详解】句意：如果人们不停止污染空气，动物和植物将很快死亡。 考查条件状语从句的主将从现。本句是if引导的条件状语从句，时态上循序“主将从现”的原则，故选A。 41．Mary ________ in the fashion show if she ________ her homework tomorrow. A．joins; finishes B．joins; will finish C．will join; finishes D．will join; will finish 【答案】C 【详解】句意：如果玛丽明天完成作业，她就会参加时装表演。 考查条件状语从句。if意为“如果”，引导条件状语从句，从句中用一般现在时态，主句用一般将来时。故选C。 42．Your spoken English will get better ________ you practice speaking every day. A．before B．if C．though D．until 【答案】B 【详解】句意：如果你每天都练习说，你的英语口语将会更好。 考查连词辨析。before在之前；if如果；though尽管；until直到。“you practice speaking every day”是“Your spoken English will get better”的肯定条件，用if引导条件状语从句，故选B。 43．If you _______ free, please come here tomorrow. A．was B．will be C．were D．are 【答案】D 【详解】句意：如果你明天有空，请到这里来。 考查动词时态。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，主语是you，be动词用are。故选D。 44．Tell Tom I’m not at home _________ he calls. A．because B．and C．if D．so 【答案】C 【详解】句意：如果Tom打电话，告诉他我不在家。 考查词语辨析。because因为；and而且；if如果；so因此。根据“Tell Tom I’m not at home”可知是如果Tom打电话就告诉他，这里是表示假设的条件，应用if引导条件状语从句。故选C。 45．If you don’t get up right now, you ________ the train. A．will miss B．missed C．miss D．are missing 【答案】A 【详解】句意：如果你现在不起床，你就会错过火车。 考查动词时态。if引导条件状语从句遵循“主将从现”原则，空处所在句是主句，时态应用一般将来时，结构是will do。故选A。 46．Which of the following sentences is CORRECT? A．Last week we had a good time to play badminton. B．If you won’t get up at 6 o’clock, you will miss the first bus. C．When the teacher was passing the classroom, students were studying. D．A lot of people like her because her voice sounds cheerful all the time. 【答案】D 【详解】句意：下面哪个句子是正确的？ 考查语法。have a good time后面应该跟doing，A选项错误。if引导的条件状语从句，主句“you will miss the first bus”为一般将来时，从句应该用一般现在时，B选项错误。C选项中“When the teacher was passing the classroom”中pass为短暂性动词，不用进行时，故C选项错误。故选D。 47．I ________ her the answer if she ________ me. A．will tell; asks B．will tell; will ask C．would tell; ask D．can tell; will ask 【答案】A 【详解】句意：如果她问我，我会告诉她答案。 考查if引导的条件状语从句。根据分析句子“I…her the answer if she…me.”可知，此处句是if引导条件状语从句，遵循“主将从现”的原则，即主句时态用一般将来时，从句用一般现在时。故选A。 48．If you _________ your glasses, you _________ clearly. A．will wear, will see B．wear, see C．wear, will see D．will wear, see 【答案】C 【详解】句意：如果你戴上眼镜，你就会看得很清楚。 考查if引导条件状语从句。根据句意可知，此处考查if引导的条件状语从句，遵循“主将从现”的原则，即主句用一般将来时，结构为：will+动词原形，条件状语从句用一般现在时，结合主语是“you”，所以第一空填wear；第二空填will see。故选C。 49．In the film, the young man will do everything for the girl __________ she wants him to. A．and B．but C．so D．if 【答案】D 【详解】句意：在这部电影里，如果这个女孩想让这个年轻的男士做什么，他将为她做一切。 考查连词用法。and并且；but但是；so因此；if如果。根据空前后两句关系可知，是表假设，需用If来引导条件状语从句。故选D。 50．We can have a picnic in the countryside tomorrow ________ it doesn’t rain. A．because B．and C．so D．if 【答案】D 【详解】句意：如果明天不下雨，我们可以在乡下野餐。 考查连词辨析。because因为； and和；so因此； if如果。根据句意，空后的“it doesn’t rain”是空前的“We can have a picnic in the countryside tomorrow”的肯定条件，所以应用if引导条件状语从句。故选D。 51．________ you don’t clean your teeth regularly, you will have toothache. A．Because B．Before C．So D．If 【答案】D 【详解】句意：如果你不规律地清洁你的牙齿，你将会牙痛。 考查连词。Because因为；Before在之前；So所以；If如果。根据“you don’t clean your teeth regularly, you will have toothache.”可知，此处是条件状语从句，应用连词if“如果”。故选D。 52．—Please tell Mike I’m not at home ________ he calls. —No problem. A．if B．so C．but D．and 【答案】A 【详解】句意：——如果迈克打电话来，请告诉他我不在家。 ——没有问题。 考查连词。if如果；so所以；but但是；and和。分析句子结构可知，“he calls”是“Please tell Mike I’m not at home”的条件，应用if引导条件状语从句。故选A。 53．If it ________, we ________ a trip to Baiyun Mountain. A．isn’t rain: take B．isn’t rain: will take C．doesn’t rain: take D．doesn’t rain: will take 【答案】D 【详解】句意：如果天不下雨，我们将会去白云山旅行。 考查if引导的条件状语从句。根据“If it ..., we ... a trip to Baiyun Mountain.”可知,此句是if（如果）引导的条件状语从句，从句用一般现在时，rain下雨，主语是第三人称单数it，借助助动词doesn’t，后接动词原形rain，助动词will后接动词原形take。故选D。 54．—Dad, it’s so cold outside. I hate winter! —________ winter comes, can spring be far behind? A．Before B．Because C．If D．So 【答案】C 【详解】句意：——爸爸，外面太冷了。我讨厌冬天！——如果冬天来了，春天还会远吗？ 考查连词辨析。Before在……之前；Because因为；If如果；So因此。根据“winter comes, can spring be far behind?”可知，此处表示“如果冬天来了，春天还会远吗”，应该用if引导条件状语从句。故选C。 55．________ you like it, you should work hard to get it. A．If B．So C．But D．Before 【答案】A 【详解】句意：如果你喜欢它，你就应该努力得到它。 考查介词辨析。if如果；so所以；but但是；before在……之前。分析句子可知，前句是后句的条件，用if引导条件状语从句。故选A。 56．George’s mother will never punish him if he ________ the truth. A．tells B．will tell C．is telling D．told 【答案】A 【详解】句意：如果他讲真话，乔治的母亲就不会惩罚他。 考查条件状语从句的时态。根据“George’s mother will never punish him if he … the truth.”可知，句子为含if引导的条件状语从句的主从复合句，遵从“主将从现”原则；主句时态为一般将来时，从句时态应用一般现在时，从句主语为“he”，谓语动词tell应用三单形式tells。故选A。 57．You’d better text her first. She ________ angry if you ________ by her house suddenly tomorrow. A．may be; stop B．may be; will stop C．maybe; stop D．maybe; will stop 【答案】A 【详解】句意：你最好先给她发个短信。如果你明天突然去她家，她可能会生气的。 考查情态动词和动词时态。may be可能，是“情态动词+be”的结构，可以作谓语；maybe可能，是副词，不能作谓语。第一空需要谓语动词，排除CD；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A。 58．During the break my friend Susan asked me ________. A．what did I want to have for lunch B．what is wrong with my left leg C．if the moon moved around the earth D．if the USA was founded in 1776 【答案】D 【详解】句意：课间休息时，我的朋友苏珊问我美国是否成立于1776年。 考查宾语从句。句子是宾语从句，用陈述语序，排除A；根据“asked”可知主句是过去时，从句应用过去的某个时态，排除B；选项C描述的是客观事实，故从句应用现在时，排除C。故选D。 59．Lucy, what about going camping if it ________ tomorrow? A．didn’t rain B．doesn’t rain C．won’t rain D．rains 【答案】B 【详解】句意：露西，如果明天不下雨，我们去露营怎么样？ 考查动词时态。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，排除AC选项；再结合语境可知，明天不下雨就去露营。故选B。 60．— Many people are killing sharks (鲨鱼) for money. — If people keep killing sharks, there ________ any of them in the sea some day. A．may not be B．will not have C．don’t have D．aren’t 【答案】A 【详解】句意：——许多人为了钱而捕杀鲨鱼。——如果人们继续捕杀鲨鱼，未来某一天将不会有鲨鱼生活在海洋里了。 考查there be句型及If引导的条件状语从句的时态。根据“If people keep killing sharks, there...any of them in the sea some day.”可知句子考查there be结构，表示“某地有某物”，there be不与have连用，排除BC选项；if引导的条件状语从句用的是一般现在时，主句可用情态动词，遵循“主情从现”原则。故选A。 61．Please bring your schoolbag to school if it ________ tomorrow. A．won’t rain B．doesn’t rain C．isn’t raining D．didn’t rain 【答案】B 【详解】句意：如果明天不下雨，请把你书包带到学校来。 考查动词时态。含有if引导的条件状语从句的主从复合句中，主句用祈使句，从句用一般现在时。根据“bring your schoolbag to school if it.”可知空处应用一般现在时态。故选B。 62．If it ________ heavily tomorrow, we ________ at late. A．will snow, will stay B．snows, will stay C．will snow, stay D．snows, stay 【答案】B 【详解】句意：如果明天下大雪，我们将待在家里。 考查动词时态。此句中“If”意为“如果”，所以该句为if引导的条件状语从句，主句用一般将来时态，从句用一般现在时态，B选项符合，故选B。 63．If it ________ tomorrow, we’ll go to visit Sheshan State Resort. A．won’t rain B．hasn’t rained C．doesn’t rain D．didn’t rain 【答案】C 【详解】句意：如果明天不下雨，我们就去佘山国家旅游度假区。 考查动词时态。根据“If it...tomorrow, we’ll go to...”可知此处是if引导的条件状语从句，需遵循主将从现的原则，因此if从句需使用一般现在时表示将来。故选C。 64．Mom and I will go to see a movie ________ I can finish my homework before 7:00 p.m. A．if B．but C．and D．or 【答案】A 【详解】句意：如果我能在晚上7点前完成作业，我和妈妈会去看电影。 考查连词辨析。if如果；but但是；and和；or或者。“I can finish my homework before 7:00 p.m.”是“Mom and I will go to see a movie”的条件，此处应用if引导条件状语从句，故选A。 65．Your education will be incomplete (不完整的) ________ you don’t have practical life skills. A．if B．because C．until D．after 【答案】A 【详解】句意：如果你没有实际的生活技能，你的教育将是不完整的。 考查连词辨析。if如果；because因为；until直到；after在……以后。根据“Your education will be incomplete (不完整的)…you don’t have practical life skills.”可知，后句是前一句的条件，用if引导条件状语从句。故选A。 66．________ you don’t know the meaning of the word, you can look it up in the dictionary. A．So B．Or C．But D．If 【答案】D 【详解】句意：如果你不知道这个单词的意思，你可以查字典。 考查连词。So所以；Or或者；But但是；If如果。此处是if条件状语从句，表假设。故选D。 67．You will have to take the dog out for a walk every day ________ you keep it. A．if B．before C．but D．so 【答案】A 【详解】句意：如果你养狗，你就得每天带它出去散步。 考查连词辨析。if如果；before在……之前；but但是；so因此。“you keep it”是“You will have to take the dog out for a walk every day”的肯定条件，用if引导条件状语从句，故选A。 68．I don’t know if it ________ sunny tomorrow. If it ________ sunny, I will go fishing. A．will be; is B．is; will be C．will be; is going to be D．is; is 【答案】A 【详解】句意：我不知道明天是不是晴天。如果天气晴朗，我就去钓鱼。 考查动词时态。第一句是由if引导的宾语从句，主句时态为一般现在时，又根据“tomorrow”可知，宾语从句应用一般将来时，其结构为“will be”；第二句是由if引导的条件状语从句，应遵循“主将从现”原则，从句应用一般现在时，且从句主语it表示单数概念，谓语动词应用is。故选A。 69．If it ________, students ________ part in the Sunshine Sports Activity tomorrow. A．will rain, won’t take B．rains, don’t take C．will rain, don’t take D．rains, won’t take 【答案】D 【详解】句意：如果明天下雨，学生们就不能参加阳光运动活动了。 考查时态和if的用法。根据If it...tomorrow”可知这里if引导 条件状语从句，主句用一般将来时，从句用一般现在时，主语it，所以从句谓语动词rain需用单三形式rains；主句用一般将来时的否定形式，需won’t +动词原形。故选D。 70．________ kindness is spread around, we will have the power to create a better world. A．If B．Before C．Unless D．Although 【答案】A 【详解】句意：如果善意传播开来，我们将有能力创造一个更美好的世界。 考查从属连词。If如果；Before在……之前；Unless除非；Although尽管。根据“kindness is spread around, we will have the power to create a better world.”可知，此处表示如果善意传播开来，我们将有能力创造一个更美好的世界，使用if引导条件状语从句。故选A。 71．Don’t worry. You will pass the exam _________ you study hard. A．as B．when C．so D．if 【答案】D 【详解】句意：别担心。如果你努力学习，你会通过考试的。 考查连词辨析。as当……时候；when当……时候；so因此；if如果。“you study hard”是“You will pass the exam”的肯定条件，应用if引导条件状语从句，故选D。 72．—I hear the famous singer Andy Liu may come to Shenzhen next month. —Really? ________ he comes, my younger sister will be very excited. A．If B．But C．So D．Before 【答案】A 【详解】句意：——我听说著名歌手刘德华可能下个月来深圳。——真的吗？如果他来，我妹妹会非常兴奋。 考查从属连词辨析。If如果；But但是；So因此；Before在……之前。分析句子可知，“he comes”是“my younger sister will be very excited.”的肯定条件，用if引导条件状语从句。故选A。 73．You will never go hungry if you ________ the Roof Gardening Club. A．will join B．join C．have joined D．joined 【答案】B 【详解】句意：如果你加入屋顶园艺俱乐部，你将永远不会挨饿。 考查条件状语从句的时态。本句是if引导的条件状语从句，遵循“主将从现”原则，所以从句谓语动词应该是现在时态，从句主语是you，所以谓语动词是原形。故选B。 74．If our government ________ attention to controlling food safety now, our health ________ in danger. A．doesn’t pay; will be B．doesn’t pay; is C．won’t pay; will be D．won’t pay; is 【答案】A 【详解】句意：如果我们的政府现在不注意控制食品安全，我们的健康将处于危险之中。 考查条件状语从句的用法。在英语中，if引导的条件状语从句的主从复合句遵循“主将从现”原则。主句一般将来时态，主语为“our health”，使用“will”，后跟动词原形“be”；从句一般现在时态，主语为“our government”，谓语动词用第三人称单数形式，使用“doesn’t pay”。故选A。 75．I will go swimming with you if I ________ free tomorrow. A．will be B．shall be C．am D．was 【答案】C 【详解】句意：如果我明天有空，我将和一起你去游泳。 考查条件状语从句的时态。if 意思是“如果”，在含有if的条件状语从句中，需符合“主将从现”的时态规则，即if引导的从句用一般现在时，主句用一般将来时。本题if 从句中be动词用一般现在时，且主语是I，所以填am。故选C。 【点睛】易错分析：本题因为有“tomorrow”一词，容易误认为是一般将来时。读题时辨别该句是if引导的从句，是解题的关键。 76．—Mike, let’s get ready for our baseball game. —OK. We ________ the game if we try our best. A．will win B．won C．wins D．won’t win 【答案】A 【详解】句意：——麦克，让我们一起为我们的棒球比赛做准备吧。——好的。如果我们尽全力我们就会获得胜利的。 考查动词时态。分析句子可知，句子是含有if引导的条件状语从句，遵循“主将从现”，结合语境，如果尽最大努力就会成功，应该是肯定句。故选A。 77．If it ________ tomorrow, we’ll go roller-skating. A．isn’t rain B．won’t rain C．doesn’t rain D．didn’t rain 【答案】C 【详解】句意：如果明天不下雨，我们将去轮滑。 考查时态。该句为if引导的条件状语从句，句子时态遵循“主将从现”的原则，主句时态为一般将来时，从句为一般现在时，主语为it，否定句用助动词doesn’t，故选C。 78．We ________ sightseeing if it ________ rain tomorrow. A．will go, will not B．will go, doesn’t C．go, doesn’t D．go, don’t 【答案】B 【详解】句意：如果明天不下雨，我们就去观光。 考查if引导的条件状语从句的主将从现。此处是if引导的条件状语从句，需遵循“主将从现”原则，表示“如果明天不下雨就去观光”，故选B。 79．Lucas, please _________ your hand _________ you know the answer _________ the question. A．put off; so; to B．put up; if; of C．put off; so; of D．put up; if; to 【答案】D 【详解】句意：卢卡斯，如果你知道问题的答案，请举手。 考查动词短语和词义辩词。put off推迟；put up举起；so因此，表结果；if如果，表示条件关系；to朝，给，到；of……的。根据“please...your hand...you know the answer...the question”以及结合选项可知，此处表示“如果知道问题的答案，请举手”，故第一空应是put up；第二空应是if，引导条件状语从句；the answer to the question“问题的答案”，是固定搭配，第三空应是to。故选D。 80．— Let’s go boating if it ________ this weekend. — But nobody knows if it ________. A．is fine; will rain B．will be fine; rains C．will be fine; will rain D．is fine; rains 【答案】A 【详解】句意：——如果这个周末天气好，我们去划船吧。——但是没人知道会不会下雨。 考查时态。第一句话中if表示“如果”，引导条件状语从句，需遵循“主将从现”原则，故从句时态为一般现在时；第二句中if表示“是否”，引导宾语从句，主句时态为一般现在时，从句时态没有限制，“this weekend”提示此处该从句时态应为一般将来时（will do）。故选A。 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 $$ Unit6 Travelling around Asia 重点语法：if引导的条件状语从句精讲练80题 语法知识精讲 条件状语从句 1．if和unless引导的条件状语从句。if表示正面的条件，意为“如果”；unless(＝if ... not)表示反面的条件，意为“除非，如果不”。 If you had come a few minutes earlier, you would have met him. 要是你早来几分钟就碰到他了。 You'll fail the exam unless you study hard(＝if you don't study hard)． 除非你努力学习，否则你考试会不及格。 2．in case, on condition that等词汇意思相近，意为“万一，假使，假如，在……条件下”。 In case there is a fire, what will we do first? 万一发生火灾，我们首先要做什么？ They agreed to lend us the car on condition that we returned it before the weekend. 他们同意把车借给我们，条件是我们在周末前归还。 3．as long as(＝so long as)引导语气强烈的条件状语从句，意为“只要”。 As long as you don't lose heart, you will succeed. 你只要不灰心，就会成功。 4．在“祈使句＋and/or/or else/otherwise＋陈述句”句型中，祈使句在意义上相当于条件状语从句。 Run faster and you'll catch the bus. 跑快点，你就会赶上公共汽车的。 Work hard, otherwise you'll fail. 努力干，要不你就会失败的。 5．if only “如果……就好了”和only if “只有”也可以引导条件状语从句。但是当only if置于句首时，主句部分倒装。 If only I were as clever as you. 我要是像你一样聪明就好了。 Only if a teacher has given permission is a student allowed to leave the classroom. 学生只有得到老师的许可才能离开教室。 语法知识精练 1．—Mom, let’s go to the zoo ________ it is fine tomorrow. —Sounds good. A．so B．or C．and D．if 2．She can visit the Canton Tower if she ________ to Guangzhou. A．go B．goes C．won’t go D．doesn’t go 3．You can’t cross the street ________ the lights are red. A．if B．or C．but D．and 4．—Tomorrow is Sunday. What about going shopping together? —I will go ________ I’m free. A．before B．if C．until D．so 5．I don’t know if he will come tomorrow. If he ________, I ________ you. A．comes, will call B．will come, will call C．comes, call D．will come, call 6．If you ________ on Tuesday, you will not miss the wonderful game. A．will come B．comes C．come D．came 7．The students will go to the Palace Museum if it ________ tomorrow. A．won’t rain B．isn’t raining C．doesn’t rain D．don’t rain 8．If you want to have a chat, ________ me up. A．calling B．call C．to call D．will call 9．________ winter comes, can spring be far behind? A．Because B．Before C．Though D．If 10．________ you don’t go to bed early, you can’t get up early tomorrow. A．If B．When C．Because D．Why 11．—Can students use the computer in class? —They can ________ it is for that lesson. A．so B．if C．or D．but 12．If you ________ too much food, you ________ very fat. A．will eat; are B．eat; are C．eat; will be D．will eat; will be 13．— Emma failed her exams. I think she should work harder. — I agree. ________ she does, she’ll get good grades. A．If B．Because C．Before D．Though 14．I’ll go swimming with you if I ________ free tomorrow. A．will be B．shall be C．was D．am 15．________ you study hard, you’ll be good at English. A．Until B．If C．So D．But 16．Most of the students will go to visit the exhibition if the weather _______ fine tomorrow. A．is B．are C．was D．will be 17．Let’s go to visit Shanghai Museum if you _______ free tomorrow. A．will be B．are C．were D．to be 18．— I will go to the park with my parents if it ________ tomorrow. — Enjoy your time. A．rains B．will rain C．doesn’t rain D．won’t rain 19．—I have some problems with my study. Can you help me? —Sure. ________ you listen carefully in class and do homework by yourself, you’ll make progress (进步). A．So B．And C．If D．But 20．If you want to visit the Palace Museum, I ________ tickets for you tomorrow. A．buy B．buying C．will buy D．buys 21．If you ________ going shopping, you can go to Hong Kong. A．likes B．will like C．like D．liked 22．If you ________ any trouble, ________ me know. A．have, let B．will have, let C．have, will let D．will have, will let 23．If Nick___________ home too late, he___________ his favourite cartoon. A．gets; will miss B．gets; misses C．will get; misses D．will get; will miss 24．— The weather report says that it ________ tomorrow in most parts of our city. — If it ________ tomorrow, the sports meeting will be held next week. A．will rain; will rain B．will rain; rains C．rains; will rain D．rains; rains 25．People at the community center ________ help if their fridge ________. A．will get; doesn’t work B．will get; won’t work C．get; doesn’t work D．get; won’t work 26．You need to practise speaking every day ________ you want to improve your spoken English. A．that B．so C．and D．if 27．We’ll stay at home 　　　 it rains tomorrow. A．and B．if C．but D．so 28．Fish _________ if there __________ no water. A．will die; is B．die; is C．will die; will be D．die; will be 29．We will go on a trip to countryside if it ________ tomorrow. A．won’t rain B．rains C．doesn’t rain D．will rain 30．What will you do if you ________ your way? A．lose B．lost C．losing D．will lose 31．—Shall we invite Mr. White to our birthday party? —That will be nice if you ________. A．shall B．do C．will do D．are 32．You can go to the zoo ________ you like to watch the animals. A．and B．if C．when D．after 33．The meat will go bad ________ you don’t put it in the fridge. A．though B．if C．until D．unless 34．________ he works hard, he’ll get good grades. A．Because B．If C．Before D．When 35．If she ________ to Beijing tomorrow, I ________ with her. A．goes, go B．will go, goes C．goes, will go D．go, will go 36．Our country will be much better for everyone in future ________ we all do something to help now. A．if B．before C．so that D．even though 37．We will meet Britain friends ________ we have time. A．if B．so C．but D．and 38．I’m waiting for my friend. ________, I will go shopping alone (独自). A．If she comes B．If she will come C．If she doesn’t come D．If she came 39．—Lucy, the Dragon Boat Festival is coming. I want to learn how to make zongzi. —OK. If my grandma ________ free tomorrow, she will teach us. A．is B．are C．am D．will be 40．If people ________ polluting the air, animals and plants ________ soon. A．don’t stop; will die B．don’t stop; died C．won’t stop; die D．won’t stop; will die 41．Mary ________ in the fashion show if she ________ her homework tomorrow. A．joins; finishes B．joins; will finish C．will join; finishes D．will join; will finish 42．Your spoken English will get better ________ you practice speaking every day. A．before B．if C．though D．until 43．If you _______ free, please come here tomorrow. A．was B．will be C．were D．are 44．Tell Tom I’m not at home _________ he calls. A．because B．and C．if D．so 45．If you don’t get up right now, you ________ the train. A．will miss B．missed C．miss D．are missing 46．Which of the following sentences is CORRECT? A．Last week we had a good time to play badminton. B．If you won’t get up at 6 o’clock, you will miss the first bus. C．When the teacher was passing the classroom, students were studying. D．A lot of people like her because her voice sounds cheerful all the time. 47．I ________ her the answer if she ________ me. A．will tell; asks B．will tell; will ask C．would tell; ask D．can tell; will ask 48．If you _________ your glasses, you _________ clearly. A．will wear, will see B．wear, see C．wear, will see D．will wear, see 49．In the film, the young man will do everything for the girl __________ she wants him to. A．and B．but C．so D．if 50．We can have a picnic in the countryside tomorrow ________ it doesn’t rain. A．because B．and C．so D．if 51．________ you don’t clean your teeth regularly, you will have toothache. A．Because B．Before C．So D．If 52．—Please tell Mike I’m not at home ________ he calls. —No problem. A．if B．so C．but D．and 53．If it ________, we ________ a trip to Baiyun Mountain. A．isn’t rain: take B．isn’t rain: will take C．doesn’t rain: take D．doesn’t rain: will take 54．—Dad, it’s so cold outside. I hate winter! —________ winter comes, can spring be far behind? A．Before B．Because C．If D．So 55．________ you like it, you should work hard to get it. A．If B．So C．But D．Before 56．George’s mother will never punish him if he ________ the truth. A．tells B．will tell C．is telling D．told 57．You’d better text her first. She ________ angry if you ________ by her house suddenly tomorrow. A．may be; stop B．may be; will stop C．maybe; stop D．maybe; will stop 58．During the break my friend Susan asked me ________. A．what did I want to have for lunch B．what is wrong with my left leg C．if the moon moved around the earth D．if the USA was founded in 1776 59．Lucy, what about going camping if it ________ tomorrow? A．didn’t rain B．doesn’t rain C．won’t rain D．rains 60．— Many people are killing sharks (鲨鱼) for money. — If people keep killing sharks, there ________ any of them in the sea some day. A．may not be B．will not have C．don’t have D．aren’t 61．Please bring your schoolbag to school if it ________ tomorrow. A．won’t rain B．doesn’t rain C．isn’t raining D．didn’t rain 62．If it ________ heavily tomorrow, we ________ at late. A．will snow, will stay B．snows, will stay C．will snow, stay D．snows, stay 63．If it ________ tomorrow, we’ll go to visit Sheshan State Resort. A．won’t rain B．hasn’t rained C．doesn’t rain D．didn’t rain 64．Mom and I will go to see a movie ________ I can finish my homework before 7:00 p.m. A．if B．but C．and D．or 65．Your education will be incomplete (不完整的) ________ you don’t have practical life skills. A．if B．because C．until D．after 66．________ you don’t know the meaning of the word, you can look it up in the dictionary. A．So B．Or C．But D．If 67．You will have to take the dog out for a walk every day ________ you keep it. A．if B．before C．but D．so 68．I don’t know if it ________ sunny tomorrow. If it ________ sunny, I will go fishing. A．will be; is B．is; will be C．will be; is going to be D．is; is 69．If it ________, students ________ part in the Sunshine Sports Activity tomorrow. A．will rain, won’t take B．rains, don’t take C．will rain, don’t take D．rains, won’t take 70．________ kindness is spread around, we will have the power to create a better world. A．If B．Before C．Unless D．Although 71．Don’t worry. You will pass the exam _________ you study hard. A．as B．when C．so D．if 72．—I hear the famous singer Andy Liu may come to Shenzhen next month. —Really? ________ he comes, my younger sister will be very excited. A．If B．But C．So D．Before 73．You will never go hungry if you ________ the Roof Gardening Club. A．will join B．join C．have joined D．joined 74．If our government ________ attention to controlling food safety now, our health ________ in danger. A．doesn’t pay; will be B．doesn’t pay; is C．won’t pay; will be D．won’t pay; is 75．I will go swimming with you if I ________ free tomorrow. A．will be B．shall be C．am D．was 76．—Mike, let’s get ready for our baseball game. —OK. We ________ the game if we try our best. A．will win B．won C．wins D．won’t win 77．If it ________ tomorrow, we’ll go roller-skating. A．isn’t rain B．won’t rain C．doesn’t rain D．didn’t rain 78．We ________ sightseeing if it ________ rain tomorrow. A．will go, will not B．will go, doesn’t C．go, doesn’t D．go, don’t 79．Lucas, please _________ your hand _________ you know the answer _________ the question. A．put off; so; to B．put up; if; of C．put off; so; of D．put up; if; to 80．— Let’s go boating if it ________ this weekend. — But nobody knows if it ________. A．is fine; will rain B．will be fine; rains C．will be fine; will rain D．is fine; rains 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 $$