Units 1-2单元语法专项强化训练100 题-2026-2027 学年外研版九年级上册英语

**基本信息** 聚焦外研版九年级上册Units 1-2核心语法，通过100题系统训练状语从句、时态及句型转换，强化语法规则应用与语境迁移能力。 **专项设计** |模块|题量/典例|题型特征|知识逻辑| |----|-----------|----------|----------| |单项选择|50题|语境中语法辨析，考查if/unless/because等连接词及时态呼应|从基础连接词辨析到复杂语境时态应用，构建"规则-语境-变式"逻辑链| |单词填空|30题|给定单词的形式变换，强化时态、语态与从句搭配|以语法规则为核心，训练"规则记忆-情境判断-形式转换"思维| |句型转换|20题|句式改写（if与unless转换等），提升语法结构迁移能力|整合从句、时态知识，实现"单一规则-多句式表达"的能力进阶|

答案解析 一、单项选择 1. 答案：A。解析：Since引导原因状语从句，意为“因为，由于”；Although虽然，If如果，Unless除非。句意为：因为她近几年变胖了，所以决定加入运动俱乐部。 2. 答案：C。解析：问句用Why提问原因，答句必须用Because回答；Who谁，How怎样均不匹配答句解释。 3. 答案：D。解析：because引导原因“Peter不喜欢科学是因为很难”；but表转折“但他会尽力学好”；because和so不能连用，排除A。 4. 答案：B。解析：because it always brings good luck to her是because引导的原因状语从句，在句中作状语；定语修饰名词，宾语在动词/介词后，表语在系动词后。 5. 答案：C。解析：宾语从句客观常识用一般现在时；information（信息）不可数，与store是被动关系“信息被储存”，用一般现在时被动is stored。 6. 答案：C。解析：if引导条件状语从句，遵循“主将从现”；主语he是三单，否定用doesn’t have。 7. 答案：A。解析：条件状语从句主将从现，从句it三单用rains；主句一般将来时won’t。句意：如果下雨，我们就不外出。 8. 答案：A。解析：if条件从句主将从现，主语the writer三单，动词用comes。 9. 答案：D。解析：第一个if是条件状语从句“如果演出6点前结束”，主将从现用ends；第二个if是宾语从句“我不知道到时是否有空位”，tomorrow将来时间用will be。 10. 答案：B。解析：since此处表原因“因为电影票卖光了，我们只能换别的活动”；but但是，though虽然，while当……时。 11. 答案：B。解析：As引导原因状语从句，表“由于，因为”；though虽然，but但是，while当……时。句意：橙色能带来好运，适合面试。 12. 答案：C。解析：As表原因“山里经常很冷，你要穿暖和衣服”；though虽然，unless除非，until直到。 13. 答案：D。解析：not…until固定搭配“直到……才”。句意：我直到尽全力才相信自己能做到。since自从，because因为，if如果。 14. 答案：D。解析：Because引导原因状语从句，because和so不能同时出现在一个句子；because of后接名词/短语，不能接句子，排除AB。 15. 答案：C。解析：后半句是原因，用because引导；because与so不可连用，前半句不加连词。句意：我能学好英语是因为每天说英语、认真学语法。 16. 答案：A。解析：because of后接名词短语the time；because后接完整句子he was ill。句意：他不去派对不是没时间，而是生病了。 17. 答案：D。解析：第一个if是宾语从句，next week将来用will enter；第二个if条件从句主将从现，主语he三单用finishes。 18. 答案：B。解析：if条件从句主将从现，主语you用原形；happen to do sth.碰巧做某事，固定搭配。 19. 答案：C。解析：条件状语从句主将从现，从句用use，主句将来时will become。句意：如果你合理使用，它会是很好的学习工具。 20. 答案：B。解析：条件从句you和give是被动关系“如果你被多给两小时”，一般现在时被动are given；主将从现，从句不用将来时。 21. 答案：C。解析：if条件从句主将从现，主语you动词原形stay；stay up late熬夜。 22. 答案：B。解析：第一句if宾语从句tomorrow将来用will come；第二句if条件从句主将从现，he三单用comes。 23. 答案：D。解析：条件从句主将从现，our government三单否定doesn’t pay；主句将来时will be。句意：如果政府现在不重视食品安全，我们健康会受威胁。 24. 答案：A。解析：if条件从句主将从现，主语we动词原形go；go to bed睡觉。 25. 答案：A。解析：第一if宾语从句this evening将来will come；第二if条件从句he free，主将从现用is。 26. 答案：D。解析：since引导时间状语从句，主句用现在完成时has lived；since+一般过去时，是现在完成时标志。 27. 答案：B。解析：宾语从句“地球绕太阳转”是客观真理，永远一般现在时goes；not…until直到……才固定搭配。 28. 答案：A。解析：never…before“在……之前绝不”。句意：比赛结束前你永远不知道谁会赢。after在之后，when当，since自从。 29. 答案：D。解析：After引导时间状语“人们听到航班坏消息后，都很难过”；until直到，unless除非，if如果。 30. 答案：D。解析：第一if宾语从句表未知将来will go；第二when时间状语从句主将从现，he三单用comes。 31. 答案：D。解析：before“在事情变糟之前立刻补救”；until直到，when当，because因为。 32. 答案：C。解析：where引导地点状语从句，表“他以前经常玩耍的地方”；because原因，which指代物，when时间。 33. 答案：C。解析：Wherever无论哪里，引导让步状语从句“无论你去哪，我都陪你”；whatever无论什么，however无论怎样，where哪里。 34. 答案：B。解析：since从句用一般过去时met，主句现在完成时；since后接过去动作。 35. 答案：C。解析：since自从双减政策出台后，主句现在完成时have had；if如果，though虽然，before在之前。 36. 答案：B。解析：not…until直到……才；主语Yao Ming和offer被动，一般过去时否定wasn’t offered。句意：直到带领上海大鲨鱼夺冠，姚明才得到NBA球队邀约。 37. 答案：D。解析：hardly…until=not…until直到……才。句意：你告诉我之前，我对此一无所知。 38. 答案：B。解析：after课后有15分钟休息；when当，so所以，until直到。 39. 答案：C。解析：after时间状语从句主将从现，she三单用leaves；after she leaves school毕业后。 40. 答案：C。解析：as soon as一……就，时间状语从句主将从现，he三单用comes。 41. 答案：C。解析：As引导过去进行时“我正在排队时，听到巨响”，主句heard过去式，从句过去进行was waiting。 42. 答案：A。解析：客观现状一般现在时；Chinese和teach被动“中文被教授”，不可数名词用is taught。 43. 答案：D。解析：As当我们下车时，看到两人打架；although虽然，but但是，since因为。 44. 答案：D。解析：while引导长动作，主从句都用过去进行时；was cooking对比was doing homework。 45. 答案：B。解析：grow up长大；when时间从句主将从现，主语we动词原形。 46. 答案：D。解析：home是副词，前面不加to；he三单用gets，get home到家。 47. 答案：D。解析：arrive at+小地点airport；when从句一般现在arrive，主句将来will tell；reach直接接宾语不加at。 48. 答案：A。解析：when从句arrives一般现在，主句将来时will meet。 49. 答案：B。解析：when当我今早起床时，雨下很大；if如果，after之后，until直到。 50. 答案：A。解析：before引导过去时间状语从句came，主句一般过去was。 二、用所给单词适当形式填空 1. 答案：rains。解析：if条件从句主将从现，it三单用rains。 2. 答案：will come; comes。解析：第一if宾语从句表将来用will come；第二if条件从句he三单用comes。 3. 答案：practice。解析：if条件从句，主语you动词原形。 4. 答案：Keep。解析：祈使句动词原形开头，句首大写。 5. 答案：heat。解析：客观真理，if从句一般现在，you原形heat。 6. 答案：will visit; is。解析：as soon as时间从句主将从现，主句将来will visit；school单数is。 7. 答案：arrive。解析：as soon as从句you动词原形arrive。 8. 答案：finishes。解析：until从句主将从现，he三单用finishes。 9. 答案：got; was cooking。解析：when短动作用一般过去got；长动作过去进行was cooking。 10. 答案：was watching。解析：while引导长动作，后句was reading，对应过去进行was watching。 11. 答案：met; was shopping。解析：while从句长动作过去进行was shopping；主句短动作一般过去met。 12. 答案：has been; moved。解析：It has been+时间段+since从句一般过去moved。 13. 答案：has lived。解析：since+过去时，主句现在完成has lived。 14. 答案：make。解析：before从句一般现在，you原形make。 15. 答案：finishes。解析：after从句主将从现，he三单用finishes。 16. 答案：stopped。解析：didn’t主句一般过去，until从句同步过去stopped。 17. 答案：is。解析：everyone不定代词作主语，谓语单数is；since此处表原因，一般现在。 18. 答案：was。解析：yesterday一般过去，he搭配was。 19. 答案：travel。解析：wherever让步从句，you动词原形travel。 20. 答案：is。解析：there be就近原则，sunlight不可数，用is。 21. 答案：hurry。解析：unless条件从句主将从现，you原形hurry。 22. 答案：goes。解析：as time goes by固定搭配，time三单用goes。 23. 答案：will help; have。解析：when从句主将从现，主句将来will help；I原形have。 24. 答案：came; were talking。解析：when短动作一般过去came；主句学生复数过去进行were talking。 25. 答案：haven’t seen; met。解析：since从句一般过去met，主句现在完成否定haven’t seen。 26. 答案：don’t give。解析：if条件从句主将从现，you否定don’t give。 27. 答案：rings。解析：as soon as从句，bell单数三单用rings。 28. 答案：won’t pass。解析：unless引导条件，主句将来否定won’t pass。 29. 答案：were discussing。解析：while长动作，后句knocked过去式，主语they复数过去进行were discussing。 30. 答案：will snow; snows。解析：第一if宾语从句tomorrow将来will snow；第二if条件从句it三单用snows。 三、句型转换 1. 答案：If; don’t hurry。解析：祈使句or=If you don’t…，hurry up固定短语。 2. 答案：if; don’t work。解析：unless=if…not，原句unless you work hard=if you don’t work hard。 3. 答案：unless you help。解析：if you don’t help=unless you help。 4. 答案：after; finished。解析：原句not…until，改为after“完成作业后上床”，主句didn’t过去式，从句同步finished。 5. 答案：As soon as。解析：as soon as同义替换，句首大写。 6. 答案：If you study。解析：祈使句and=If you…，主句将来。 7. 答案：has been away。解析：left短暂动词变延续be away；since five years现在完成has been away。 8. 答案：If it doesn’t rain。解析：unless=if…not，it三单否定doesn’t rain。 9. 答案：as soon as。解析：when看到妈妈就哭，替换为as soon as一……就。 10. 答案：keeps working。解析：not stop doing=keep doing，she三单用keeps working。 11. 答案：if he will come。解析：一般疑问句合并if宾语从句，tomorrow将来will come，陈述语序。 12. 答案：has been; since。解析：joined短暂动词变延续be in the army；since+过去时间three years ago，现在完成has been。 13. 答案：or; will make。解析：if否定条件=祈使句or，主句将来will make。 14. 答案：unless it rains。解析：if it rains=unless it doesn’t rain，原句否定不变，直接替换if为unless。 15. 答案：waited until。解析：until合并两句，主句一般过去waited。 16. 答案：until; stops。解析：as soon as肯定句=not…until否定句，rain单数三单用stops。 17. 答案：couldn’t; until。解析：not…until直到……才，could否定couldn’t。 18. 答案：If you keep。解析：祈使句and改为if条件从句，you keep practicing。 19. 答案：when I was。解析：when引导时间状语，主语I，一般过去was seven。 20. 答案：As long as。解析：as long as=if，引导条件状语从句，句首大写。 学科网（北京）股份有限公司 $专项集中训练，扫清语法盲区 外研版（新教材）九年级上册月考复习（Units 1-2） 语法专项强化训练100题 学校：______________ 班级：______________ 姓名：______________ （考试时间：60分钟 满分：100分） 一、单项选择（共50小题；每小题1分，满分50分） 从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。 ( )1．__________ she has got fatter in recent years, she decides to join a sports club. A．Since B．Although C．If D．Unless 2．—________ do you like science? —________ I think it’s exciting. A．Why; So B．Who; Because C．Why; Because D．How; Because 3．Peter doesn’t like science ________ it’s hard, ________ he will try his best to make it. A．because; so B．and; so C．and; but D．because; but 4．Mum likes red because it always brings good luck to her. A．定语 B．状语 C．宾语 D．表语 5．The teacher told us that information ________ in our brains if we review it regularly. A．stores B．stored C．is stored D．was stored 6．— Do you think Robert will go to the zoo tomorrow? — I think he will go if he ________ too much homework. A．don’t have B．won’t have C．doesn’t have D．didn’t have 7．—Shall we go hiking this Sunday? —Good plan. But if it ________, we ________ go out. A．rains; won’t B．will rain; don’t C．rains; don’t D．will rain; won’t 8．If the writer we all like ________ next week, we will be very happy. A．comes B．will come C．came D．is going to come 9．—Will we have dinner at the Hope Restaurant ? —Maybe. We’ll go there if the show ______ before 6. But I don’t know if there ______ any free tables then. A．will end; were B．will end; will be C．ends; were D．ends; will be 10．We had to choose another activity ________ the movie tickets were sold out. A．but B．since C．though D．while 11．— Do you think I should wear an orange shirt today? — Yes. _________ orange can bring you good luck, it is good for your interview. A．Though B．As C．But D．While 12．______it is often cold in the mountains, you need to wear warm clothes. A．Though B．Unless C．As D．Until 13．—Your English has improved so much! How hard-working you are! —I didn’t believe. I could make it _______ I tried my best. A．since B．because C．if D．until 14．________ she is always friendly, ________ she gets along well with everyone. A．Because of; so B．Because of; / C．Because; so D．Because; / 15． ________ I can be good at English ________ I speak English and learn grammar carefully every day. A．Because; so B．So; because C．/: because D．/; so 16．He didn’t go to the party not ___________ the time but ___________ he was ill. A．because of, because B．because, because C．because, because of D．because of, because of 17．—Do you know if Simon ________ the writing competition next week? —He will if he ________ his project about nature. A．enters; finishes B．enters; finishes C．will enter; is finished D．will enter; finishes 18．If you ________ my lost bag in the park, please let me know at once by telephone. A．happened to find B．happen to find C．happen finding D．happened have found 19．—I have difficulty improving my English writing. —Why not try DeepSeek? If you ________ it wisely, it ________a good tool for learning. A．use; becomes B．will use; will become C．use; will become D．will use; becomes 20．—I’m afraid I can’t finish the job in such a short time. —Don’t worry. Can you do it if you_______ two more hours.? A．give B．are given C．will give D．will be given 21．If you _______up late, you will feel tired the next day. A．will stay B．have stayed C．stay D．were staying 22．I don’t know if he _______ tomorrow. If he _______, please tell me. A．will come, will come B．will come, comes C．comes, comes D．comes, will come 23．If our government ________ attention to controlling food safety now, our health ________ in danger. A．won’t pay; is B．doesn’t pay; is C．won’t pay; will be D．doesn’t pay; will be 24．It will be hard for us to get up in the morning if we ________ to bed too late. A．go B．went C．will go D．have gone 25．—I don’t know if Mr. Li ________ to the party this evening. —I think he will come if he ________ free. A．will come; is B．will come; will be C．comes; is D．comes; will be 26．Mary ________ in that housing estate since she came back to Shanghai in 2015. A．is living B．had lived C．would live D．has lived 27．I didn’t know that the earth ________ around the sun _______ you told me. A．went, after B．goes, until C．goes, after D．went, until 28．How exciting the 100-metre hurdling race is! You can never know who the winner will be ________ it ends. A．before B．after C．when D．since 29．________ people heard the bad news about the flight, they felt very sad. A．Until B．Unless C．If D．After 30．I don’t know if he ______ to the English corner, but I’ll ask him about that when he ______ to the class. A．goes, will come B．will go, will come C．goes, comes D．will go, comes 31．He made a serious mistake, but he took immediate action to change that ________ it got worse. A．until B．when C．because D．before 32．—Have you found the lost child? —Not yet. But someone reported to have seen him ________ he used to play a lot. A．because B．which C．where D．when 33．__________ you go,I will go with you . A．whatever B．However C．Wherever D．Where 34．How time flies! It has been ten years since I ________ him in Xuzhou. A．meet B．met C．have met D．will meet 35．Students have had a lot more free time to do what they like ________ the Double Reduction Policy (双减政策) came out. A．if B．though C．since D．before 36．Yao Ming ________ a chance to play for an NBA team until he helped Shanghai Sharks win the CBA champion. A．was offered B．wasn’t offered C．hasn’t offered D．has offered 37．I hardly knew anything about it __________ you told me. A．since B．after C．though D．until 38．The students usually have a 15-minute short rest _________ they have a class. A．when B．after C．so D．until 39．Alice will work as a doctor after she ________ school. A．left B．had left C．leaves D．will leave 40．— Would you please ask Tom to come to my office? —Sure, I will tell you about it as soon as he _______ back tomorrow. A．will come B．came C．comes D．is coming 41．As I ________ in line, I heard a loud noise from that building which is two blocks away. A．wait B．waited C．was waiting D．waiting 42．As your country grows much stronger , Chinese _______ in more and more schools out of our country . A．is taught B．has taught C．is teaching D．was taught 43．________ we got off the bus, we saw two men fighting against each other. A．Although B．But C．Since D．As 44．Jim's mother was cooking while he ________ his homework． A．did B．does C．is doing D．was doing 45．As a student, we should do something useful to the society when we ________ . A．grow B．grow up C．will grow up D．will grow 46．Every day he can have dinner when he ________ home from his factory. A．get B．get to C．gets to D．gets 47．When I ________ at the airport, I ________ you on the phone. A．reach, tell B．reach, will tell C．arrive, tell D．arrive, will tell 48．They ________ Miss Brown at the airport when she arrives this afternoon. A．will meet B．met C．meet D．meets 49．It was raining hard ________ I got up this morning. A．if B．when C．after D．until 50．It ________ a long time before Jenny came back home from Canada. A．was B．will be C．has been D．is 二、用所给单词的适当形式填空（共30小题；每小题1分，满分30分） 1. If it ________ (rain) tomorrow, we will put off the sports meeting. 2. I don’t know if Tom ________ (come) to my party. If he ________ (come), I will be very happy. 3. You can improve your English if you ________ (practice) reading every morning. 4. ________ (keep) quiet if you visit the library. 5. If you ________ (heat) water, it turns into steam. 6. We ________ (visit) the museum as soon as school ________ (be) over this Friday. 7. Please call me as soon as you ________ (arrive) in Beijing. 8. He won’t go to bed until he ________ (finish) his homework. 9. When I ________ (get) home yesterday evening, my mother ________ (cook) dinner. 10. While my sister ________ (watch) cartoons, I was reading a novel. 11. I ________ (meet) an old friend while I ________ (shop) in the supermarket last Sunday. 12. It ________ (be) ten years since my family ________ (move) to this city. 13. He ________ (live) in London since he left college. 14. You should think carefully before you ________ (make) an important decision. 15. After he ________ (finish) high school, he will study abroad. 16. We didn’t start our trip until the rain ________ (stop). 17. Since everyone ________ (be) ready, let’s begin our meeting. 18. He stayed at home yesterday because he ________ (be) ill. 19. Wherever you ________ (travel), you should follow local rules. 20. Plant trees where there ________ (be) plenty of sunlight. 21. Unless you ________ (hurry) up, you will miss the early bus. 22. As time ________ (go) by, we find more and more valuable memories. 23. Don’t worry. I ________ (help) you when I ________ (have) free time. 24. When the teacher ________ (come) into the classroom, the students ________ (talk) loudly. 25. I ________ (not see) him since we ________ (meet) last summer. 26. If you ________ (not give) up, you will realize your dream. 27. As soon as the bell ________ (ring), all students run out of the classroom. 28. You ________ (not pass) the exam unless you work harder. 29. While they ________ (discuss) the plan, someone knocked at the door. 30. I wonder if it ________ (snow) tomorrow. If it ________ (snow), we will make a snowman. 三、句型转换（共20小题；每小题1分，满分20分） 按要求改写下列句子，每空一词。 1.Hurry up, or you will miss the early bus.（改为if引导条件状语从句） ______ you ______ ______ up, you will miss the early bus. 2.You will fail the exam unless you work hard.（改为同义句） You will fail the exam ______ you ______ ______ hard. 3.If you don’t help me, I can’t finish the work.（用unless改写） I can’t finish the work ______ ______ ______ me. 4.He didn’t go to bed until he finished his homework.（用after改写句子） He went to bed ______ he ______ his homework. 5.I will call you as soon as I get to Shanghai.（同义转换） ______ ______ I arrive in Shanghai, I will give you a call. 6.Study hard, and you will make great progress.（改为if复合句） ______ ______ ______ hard, you will make great progress. 7.It has been five years since he left his hometown.（同义句转换） He ______ ______ ______ from his hometown for five years. 8.Unless it rains tomorrow, we will go hiking.（改为if…not结构） ______ ______ ______ tomorrow, we will go hiking. 9.The boy began to cry when he saw his mother.（用as soon as改写） The boy began to cry ______ ______ ______ he saw his mother. 10.（2022·湖北黄石中考）She won’t stop working until she finishes the task.（改为肯定句式同义句） She ______ ______ until she finishes the task. 11.I don’t know. Will he come to the party?（合并为含if宾语从句复合句） I don’t know ______ ______ ______ to the party. 12.He joined the army three years ago.（用since改写同义句） He ______ ______ in the army ______ three years ago. 13.If you are careless, you will make mistakes.（用or改写简单句） Be careful, ______ you ______ ______ mistakes. 14.We can’t have a picnic if it rains this weekend.（用unless改写句子） We can’t have a picnic ______ ______ ______ this weekend. 15.Tom waited. The train arrived.（用until合并两句） Tom ______ ______ the train arrived. 16.As soon as the rain stops, we will set off.（同义转换） We won’t set off ______ the rain ______. 17.He could not swim when he was ten.（用until改写） He ______ swim ______ he was ten years old. 18.Keep practicing, and you will improve your spoken English.（改为if条件状语从句） ______ ______ practicing, you will improve your spoken English. 19.I started learning English. I was seven years old.（用when合并句子） I started learning English ______ ______ seven years old. 20.If you keep trying, you will succeed.（用as long as改写同义句） ______ ______ ______ you keep trying, you will succeed. 学科网（北京）股份有限公司 $