Unit 2 Teenage problems语法精讲精练（if、whether和特殊疑问词引导的宾语从句） 2026-2027学年译林版（新教材）九年级上册英语

**基本信息** 初中英语九年级上册Unit 2同步练，聚焦if/whether和特殊疑问词引导的宾语从句，通过“讲解-精练”分层设计，构建从语法规则到综合应用的巩固路径，提升语言能力与思维品质。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础层|核心语法规则（陈述语序、引导词选择、时态匹配）|单选聚焦基础考点（35题），如if/whether辨析、疑问词功能| |提升层|综合应用（否定转移、句型转换、语境适配）|句型转换强化句式变形（20题），如直接引语变间接引语、疑问词+to do简化|

答案解析 第一部分 if/whether引导宾语从句 考点精练 一、单项选择 1. 答案：C。解析：句尾有or not，只能用whether；until直到，before在……之前，while当……时均无“是否”含义，故选C。 2. 答案：D。解析：第一空后接to do不定式，只能用whether；第二空if表“如果”引导条件状语从句，whether不能引导条件句，故选D。 3. 答案：D。解析：后有or not，固定搭配whether...or not，that无含义，how怎样，if不能搭配or not放此处，故选D。 4. 答案：D。解析：whether to do表“是否做某事”，what什么，that无词义，how如何，句意“没决定坐公交还是火车回家”表选择，用whether，故选D。 5. 答案：B。解析：句尾出现or not，只能用whether；how如何，why为什么，what什么均不符合“是否”语义，故选B。 6. 答案：B。解析：宾语从句必须陈述语序，C、D是疑问语序直接排除；主句wondered想知道，从句需表疑问含义，that引导陈述句无疑问含义，whether是否符合语境，故选B。 7. 答案：B。解析：主句asked询问，原句为一般疑问句，用if/whether引导；that引导陈述句，what什么，where哪里语义不符，故选B。 8. 答案：A。解析：第一空if表“是否”引导宾语从句；第二空if表“如果”引导条件状语从句，whether不能引导条件句，故选A。 9. 答案：C。解析：第一空后有or not，用whether；第二空if引导条件状语从句，遵循主将从现，主语we和invite是被动关系“被邀请”，用一般现在时被动are invited，故选C。 10. 答案：B。解析：第一空what作said的宾语，问“说了什么”；第二空句尾有or not，只能用whether，故选B。 11. 答案：A。解析：两空均放在介词on后作介词宾语，介词后只能用whether，不能用if，故选A。 12. 答案：A。解析：doubt否定句don’t doubt后用that；肯定句doubt后用if/whether表怀疑是否，故选A。 13. 答案：C。解析：be not sure后接whether/if表不确定是否；which哪一个，what什么，why为什么语义不通，故选C。 14. 答案：A。解析：宾语从句陈述语序，B、D倒装语序排除；主句wanted为过去时，从句时态倒退用would，that引导陈述句无疑问含义，句意“想知道是否一起购物”用if，故选A。 15. 答案：A。解析：空格在介词in后，介词后只能用whether，不能用if；when何时，since自从语义不符，故选A。 二、句型转换 1. 答案：if/whether she。解析：直接引语一般疑问句变宾语从句用if/whether；主句asked为过去时，原句I改为she，陈述语序。 2. 答案：if/whether; came。解析：一般疑问句转宾语从句用if/whether；主句could为过去时，从句come倒退为came。 3. 答案：if/whether; liked。解析：一般疑问句变从句用if/whether；主句asked过去式，like变为liked。 4. 答案：if/whether his; ago。解析：一般疑问句转从句用if/whether；my改为his；three days ago固定搭配不变。 5. 答案：if/whether they found the treasure。解析：一般疑问句转宾语从句用if/whether，改为陈述语序，主句wanted过去式，find变found。 6. 答案：if/whether there is。解析：一般疑问句Is there...转宾语从句，陈述语序there is，引导词if/whether。 7. 答案：whether to。解析：if引导宾语从句可简化为whether to do，if不能和to do连用。 8. 答案：if/whether; would。解析：一般疑问句变从句用if/whether；主句asked过去式，will倒退为would。 9. 答案：if/whether; cleaned。解析：一般疑问句变从句用if/whether；主句is asking现在时，从句yesterday为过去时，clean变cleaned。 10. 答案：if/whether; could。解析：一般疑问句转从句if/whether；主句asked过去式，can倒退为could。 第二部分 特殊疑问词引导宾语从句 考点精练 一、单项选择 1. 答案：B。解析：第一人称I+think适用否定转移，否定放主句don’t think，从句用肯定；句意“打断别人说话不礼貌”，故选B。 2. 答案：D。解析：宾语从句陈述语序，A、B倒装排除；答句回答赶校车，是早起的原因，用why提问，how表方式不符，故选D。 3. 答案：D。解析：答句解释学习外语的意义，回答原因，用why；where地点，how方式，when时间均不符，故选D。 4. 答案：A。解析：答句next month是时间，用when提问；where地点，why原因，how方式不符，故选A。 5. 答案：C。解析：答句指路，提问地点用where；what事物，how方式，when时间不符，故选C。 6. 答案：A。解析：宾语从句陈述语序，B、D倒装排除；主句Do you know现在时，从句无需倒退时态，用can，故选A。 7. 答案：B。解析：固定搭配what...be like表“……是什么样子”；that无词义，which哪一个，how不能搭配be like，故选B。 8. 答案：B。解析：答句She is a doctor是职业，询问职业用what sb is；where地点，how方式，when时间不符，故选B。 9. 答案：D。解析：laptop电脑，句意“不知道如何使用”，how to use；what to use用什么，which one哪一个，why为什么语义不通，故选D。 10. 答案：D。解析：第一人称we+think否定转移，don’t think；honest元音音素开头，用an，故选D。 11. 答案：A。解析：疑问词+to do结构where to find，等同于where I can find；B倒装语序错误，how语义重复，find缺少不定式to，故选A。 12. 答案：C。解析：宾语从句陈述语序，A、B、D均为疑问倒装直接排除；句意成语告诉我们如何看待自己和他人，how符合，故选C。 13. 答案：D。解析：A、B、C均为疑问倒装语序排除；句意诗句告诉我们如何开阔眼界，how符合语义，故选D。 14. 答案：C。解析：live是不及物动词，live in rooms必须加介词in；decide后接疑问词+to do，which one to choose，故选C。 15. 答案：D。解析：宾语从句陈述语序，A、C倒装排除；答句spring best最喜欢春天，提问哪一个季节用which season，when何时不符，故选D。 16. 答案：C。解析：答句My teachers是人，作thank宾语，用who；why原因，what事物，where地点不符，故选C。 17. 答案：A。解析：宾语从句陈述语序，B倒装排除；主句did you know过去时，从句时态倒退用was；答句his mother是人，look after照顾，look for寻找语义不符，故选A。 18. 答案：A。解析：情态动词can后接动词原形sing；第二空I don’t think否定转移，从句用肯定can，不用can’t，故选A。 19. 答案：A。解析：第一人称I+believe否定转移，否定放主句don’t；从句表将来用will，故选A。 20. 答案：D。解析：宾语从句陈述语序，A、C倒装排除；tomorrow明天表将来，用will start，started过去式不符，故选D。 二、句型转换 1. 答案：where; will。解析：特殊疑问句where引导宾语从句，陈述语序，原句will保留。 2. 答案：when to。解析：宾语从句主语一致，when I will leave简化为疑问词+to do when to leave。 3. 答案：Do you know who。解析：对人Lingling提问用who，合并为宾语从句，主句一般疑问Do you know。 4. 答案：why he didn’t。解析：特殊疑问词why引导宾语从句，改为陈述语序，didn’t放主语he后。 5. 答案：how he could。解析：主句asked过去式，can倒退为could，陈述语序how he could。 6. 答案：when; took。解析：主句wanted过去时，take off时态倒退为took off。 7. 答案：who; belongs。解析：whose the bike is = who the bike belongs to，bike单数，belong变belongs。 8. 答案：to do。解析：what I should do简化为疑问词+to do what to do。 9. 答案：what; sold。解析：特殊疑问词what引导从句，主句asked过去式，sell变sold。 10. 答案：when; opens。解析：对7:00 a.m.时间提问用when，宾语从句陈述语序，shop单数，opens不变。 学科网（北京）股份有限公司 $ 译林版（新教材）九年级上册Unit 2 Teenage problems语法讲练 由if / whether和特殊疑问词引导的宾语从句 核心语法1：if / whether引导的宾语从句 知识点1 核心语法讲解 if / whether 用于将一般疑问句（Yes/No疑问句）转换为宾语从句，中文译为是否，绝大多数普通场景二者可以互换。 常用搭配动词/短语：ask, wonder, want to know, not sure, doubt 等。 基础公式：主句 + if/whether + 陈述语序从句 核心规则：从句必须改为陈述句语序，去掉助动词do/does/did，动词随人称、时态正常变形。 例：原一般疑问句：Does he like coffee? ⟶ 宾语从句：I wonder if/whether he likes coffee. （解析：去掉助动词does，主语he为三单，动词like变为likes。） 知识点2 只能用whether、不可用if的5种使用场景 使用场景 例句 从句末尾紧跟or not I don't know whether he will come or not. 我不知道他是否会来。 whether...or... 表“是…还是…”选择 She can't decide whether to stay or leave. 她无法决定是留下还是离开。 放在介词后面作介词宾语 I'm interested in whether he passed the test. 我关心他是否通过了考试。 与不定式to do连用（whether to do） He hasn't decided whether to take the job. 他还没决定是否接受这份工作。 whether置于整个句子句首引导主语从句 Whether he will win the match, it's hard to say. 他能否赢得比赛，这很难说。 知识点3 if一词多义核心辨析（易混重难点） if有两个独立词义，分属两种从句，不可混用： 1.宾语从句中 = 是否：多数情况可与whether互换，受限5种场景只用whether 2.条件状语从句中 = 如果：只能用if，绝对不能用whether 例：If it rains tomorrow, we will put off the trip. 解析：此处if表“如果”，引导条件句，不能用whether 知识点4 单元高频固定搭配：doubt 用法 1. 肯定句：doubt + if/whether（怀疑是否……） 例：I doubt if/whether she is honest and patient. 2. 否定句：don’t doubt + that（毫不怀疑……） 例：I don’t doubt that she is honest and patient. 考点精练 一、单项选择（共15小题） 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．The boy fell off his bike and he’s having an X-ray to see ________ his arm is broken or not. A．until B．before C．whether D．while ( )2．He hasn’t decided ________ to go on a trip to London next week. ________ he visits London, so will I. A．If; If B．if; Whether C．whether; Whether D．whether; If ( )3．It seems that he hasn’t decided ________ to give up the competition or not. A．that B．how C．if D．whether ( )4．Jim hasn’t decided ________ to go home by bus or by train. A．what B．that C．how D．whether ( )5．I don’t know ________ I can solve this difficult problem or not. A．how B．whether C．why D．what ( )6．Although he explained a lot, we still wondered ________. A．that he had nothing to do with it B．whether his method would be effective C．how could he find the way finally D．why didn’t he meet our expectations ( )7．My brother asked me ________ I had finished my English homework. A．that B．if C．what D．where ( )8．I don’t know ________ Jack will come and join us. ________ he comes, I’ll call you. A．if; If B．if; Whether C．whether; That D．that; Whether ( )9．— We are still discussing ________we will go to Tina’s party tomorrow or not. — If we ________, we’ll go. A．whether; invite B．if; will invite C．whether; are invited D．whether; will be invited ( )10．—________ did you say to our English teacher? —I asked her ________ I had passed the exam or not. A．How; if B．What; whether C．What; if D．How; whether ( )11．It depends on ______ we have enough time, not on ______ the weather is good. A．whether; whether B．whether; if C．if; whether D．if; if ( )12．I don’t doubt ____________ she can do it well, but I doubt _________ she is willing to do it. A．that; if B．that; that C．if; if D．if; that ( )13．—Are you going camping this afternoon？ —A typhoon is coming. I'm not sure _______ the road to the mountains will be closed. A．which B．what C．whether D．why ( )14．She wanted to know ____________ this Friday. A．if you would go shopping with her B．whom would you go shopping with C．that you will go shopping D．when will you go shopping with her ( )15．--- Would you like to take part in the activity? --- I’d love to, but the question lies in _______ it is worth doing. A．whether B．if C．when D．since 二、句型转换（共10小题） 按要求完成下列句子，每空一词。 1．“Can I try on that pair of shoes?” The girl asked. (改为同义句) The girl asked ________ ________ could try on that pair of shoes. 2．Could you tell me? Did they come back last night? （保持句意不变） Could you tell me ________ they ________ back last night? 3．“Does Mike like the gift?” Lucy asked. (改为同义句) Lucy asked _________ Mike _________ the gift. 4．He asks, “Was my sister here three days ago?” （合并为一句话） He asks ________ ________ sister was here three days ________. 5．He wanted to know. Did they find the treasure finally? (合并句子) He wanted to know ________ ________ ________ ________ ________ finally. 6．Can you tell me? Is there a post office near here? (改为复合句) Can you tell me ______ ______ ______ a post office near here? 7．I don’t know if I will go with you tomorrow. （同义句转换） I don’t know ________ ________ go with you tomorrow. 8．My friend asked me, “Will you go to Beijing for your holiday?” (同义句转换) My friend asked me ________ I ________ go to Beijing for my holiday. 9．“Did Mary clean the classroom yesterday?” Mr. Hu is asking.（改为宾语从句） Mr. Hu is asking ________ Mary ________ the classroom yesterday. 10．“Can I borrow your pen?” Tom asked me. (改为同义句) Tom asked me ________ he ________ borrow my pen. 核心语法2：特殊疑问词引导的宾语从句 知识点1 核心语法讲解 由 what、who、whom、which、whose、where、when、why、how 等特殊疑问词引导，将特殊疑问句转化为宾语从句。 疑问词双重功能：① 引导从句 ② 在从句中充当主语、宾语、状语、定语等句子成分，不可省略。 基础公式：主句 + 疑问词 + 陈述语序从句 核心规则：一般情况去掉助动词do/does/did，动词变形；（特例：疑问词作从句主语时，无需调整语序。） 知识点2 高频疑问词用法对照表 疑问词 在从句中充当成分 含义 例句 what 主语 / 宾语 / 表语 什么 I don't know what he wants. （what作wants的宾语） who/whom 主语 / 宾语 谁 who作主语：She doesn't care who wins. whom作宾语（正式书面）：I don't know whom he invited. 补充：口语中who可替代whom作宾语，I don’t know who he invited. 同样正确 which 定语（修饰名词） 哪一个 I can’t decide which job fits me better. where 地点状语 哪里 He asked where the library was. when 时间状语 什么时候 I wonder when the meeting will start. why 原因状语 为什么 She explained why she was late. how 方式 / 程度状语 怎样 / 如何 Do you know how I can solve this problem? 知识点3 语序必考规则（含特例） 1. 常规规则：从句必须用陈述句语序（主语在前、谓语在后），禁止疑问倒装 ❌ 错误：I don't know where is he. ✅ 正确：I don't know where he is. 2. 特殊特例：疑问词在从句中作主语时，语序不变（本身为陈述语序） 原句：Who is standing there? 从句：I don’t know who is standing there. 知识点4 宾语从句时态三大黄金规则（必考核心） 口诀：主现从任意，主过从倒退，真理永一现 1. 主句为现在时态（一般现在/现在完成）：从句时态不受限制，按实际句意选择 I know he lives here. / I know he moved here last year. 2. 主句为过去时态（一般过去）：从句时态统一向后推移一格 I wonder where he lives. → I wondered where he lived. 3. 特例：客观真理、自然规律，永远用一般现在时，不受主句时态影响 The teacher told us the earth goes around the sun. 解析：主句过去式told，从句为客观真理，仍用goes 知识点5 宾语从句两种简化规则（重难点） 简化1：疑问词 + to do 不定式 适用前提：主句主语=从句主语，从句常含should/can/will 原句：I don’t know how I should do it next. 简化：I don’t know how to do it next. 简化2：感官动词从句简化（do/doing 词义区分） 1. see/hear/watch sb doing sth：看见某人正在做（动作进行中） I saw some boys playing basketball just now. 2. see/hear/watch sb do sth：看见某人做完全过程/经常做 I saw him cross the road yesterday. 知识点6 拓展必考难点：否定转移 1. 适用条件（缺一不可） ① 主句主语：第一人称 I / We ② 主句谓语：think / believe / suppose / expect（观点类动词） 2. 核心规则：从句否定词not 转移至主句，从句用肯定句式 ✅ I don’t think he is wrong. ❌ I think he is not wrong. 3. 补充：非第一人称主语、know/say/feel 不适用否定转移 宾语从句完整解题三步法（背诵版） 1. 定引导词 陈述句变从句用that；一般问句用if/whether；特殊问句用对应疑问词 2. 调语序 统一使用陈述语序；疑问词作从句主语无需调整 3. 定时态 遵循「主现从任意，主过从倒退，客观真理永一现」 考点精练 一、单项选择（共20小题） 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．I ________ to interrupt others while they are talking. A．think it is not polite B．don’t think it is polite C．think it’s polite D．don’t think it’s not polite ( )2．—Could you tell me ________ every morning? —Sure. I have to catch the school bus. A．how do you get up early B．why do you get up early C．how you get up early D．why you get up early ( )3．—I wonder ________ we still learn foreign languages in the age of AI. —In my opinion, learning languages can train our minds and open up our eyes. A．where B．how C．when D．why ( )4．—Do you know ________ the new library will open? —Maybe next month. The workers are decorating it now. A．when B．where C．why D．how ( )5．—Could you please tell me ________ the nearest bookstore is? —Go along this street and turn left at the first crossing. A．what B．how C．where D．when ( )6．Do you know where ________ tickets for John Owen-Jones’s Unmasked tour in China? A．we can buy B．can we buy C．we could buy D．could we buy ( )7．With technology advancing so fast, I can’t imagine ________ my hometown will be like in ten years. A．that B．what C．which D．how ( )8．— Do you know ________? — She is a doctor. She works in People’s Hospital and saves many lives every day. A．where his mother comes from B．what his mother is C．how his mother helps people D．when his mother goes to work ( )9．I have got a new laptop, but I don’t know ________ it. A．what to use B．which one to use C．why to use D．how to use ( )10．We _______ Tom _______ honest boy. A．think, isn’t a B．think, isn’t an C．don’t think, is a D．don’t think, is an ( )11．Could you tell me where ________ the bank? A．to find B．can I find C．how to find D．find ( )12．The idiom “Gold can’t be pure and man can’t be perfect” tells us ________. A．where can we get gold and become rich B．why we should become perfect people C．how we should view others and ourselves D．if should we accept ourselves despite imperfection ( )13．The classical Chinese poem “If you’ll enjoy a greater sight, you’d climb up to a greater height” tells us ________. A．what we can enjoy B．what are we good at C．how can we work hard D．how we can open our minds ( )14．I have two rooms to____________. But I can’t decide_____________. A．live, which one B．live in, to choose which one C．live in, which one to choose D．live, which one to choose． ( )15．—Can you tell me ________? —Of course. I like spring best. There are so many beautiful flowers. A．how can I go to Kunming B．when I can go traveling C．where can I stay in the city D．which season you like best ( )16．— John, I wonder ________ you want to thank the most. — My teachers. I couldn’t get such great success without their help. A．why B．what C．who D．where ( )17．—Mike, did you know _________? —Yes, his mother, because she was ill. A．who he was looking after B．who was he looking for C．who he is looking for D．who he is looking after ( )18．—Can Li Ming ________ an English song? —No, I don't think he ________. A．sing;can B．to sing;can C．sings;can't D．sing;can't ( )19．I ___________ believe their son ___________ come to visit me. A．don’t；will B．/；doesn’t C．didn’t；will D．/；didn’t ( )20．— Do you know ________ tomorrow? — I’ve no idea. Let’s check the weather report online. A．when did it start to rain B．when it started to rain C．when will it start to rain D．when it will start to rain 二、句型转换（共10小题） 按要求完成下列句子，每空一词。 1．Where will the lecture be held? Could you tell me? (改为宾语从句) Could you tell me ________ the lecture ________ be held? 2．I haven’t decided when I will leave for Macao. (改为同义句) I haven’t decided ________ ________ leave for Macao. 3．I know the leading role in this play is Lingling. (对划线部分提问) ________ ________ ________ ________ the leading role in this play is? 4．Would you please tell me? Why didn’t he go to France? (改为宾语从句) Would you please tell me ________ ________ ________ go to France? 5．“How can I use the computer?” He asked. (改为宾语从句) He asked ________ ________ ________ use the computer. 6．When does the plane take off? I wanted to know. (改为宾语从句) I wanted to know ________ the plane ________ off? 7．Do you know whose the bike is?（改为同义句） Do you know ________ the bike ________ to? 8．I don't know what I should do with the broken bike.(改为同义句) I don't know what _______ _______ with the broken bike. 9．“What do you sell online” I asked the young boy. (改为同义句) I asked the young boy ________ he ________ online. 10．The shop opens at 7: 00 a. m. (对划线部分提问) Could you please tell me ________ the shop ________? 学科网（北京）股份有限公司 $