虚拟语气系统复习-备战2026届高考英语一轮复习语法全解（外研版）

ENGLISH-语法复习系列资料（外研版） Chapter1虚拟语气系统复习 考频分析 虚拟语气是高中英语语法的重要模块，考频占语法总量的10%左右，主要分布在核心题型：单项选择(1-2 题)、完形填空(1-2题)、语法填空(1题)、书面表达（辅助考察，提升表达的委婉性与准确性）。在语境 理解类题目中，虚拟语气的时态对应及语境假设往往是解题关键。 考查内容 高中英语对虚拟语气的考察聚焦三大维度，覆盖基础用法与语境应用： ·基本结构与时间对应：与现在事实相反(if+一般过去时，主句would/could/might+-动词原形)、与过去 事实相反(if+过去完成时，主句would/could/might+-have+过去分词)、与将来事实相反(if+一般过去 时were to do/should do,主句would/could/might+-动词原形)的句式结构； ·特殊句式应用：wish后的宾语从句（现在用过去时，过去用过去完成时，将来用would/could+动词原 形)、as if/though引导的从句（根据语境选择相应时间的虚拟形式）、if only引导的感叹句（表达对现在、 过去或将来的虚拟愿望)； ·含蓄虚拟与固定句型：without/but for等介词短语表示含蓄条件、It is/was+形容词(important/necessary 等)+that从句（谓语用should+动词原形，should可省略）、would rather后的宾语从句（现在或将来 用过去时，过去用过去完成时)。 精讲精练 知识点一：虚拟语气的基本结构及用法 ·对现在事实的虚拟（假设与现在事实相反） -结构：if从句（过去式did/were),主句(would/could/.should/might+动词原形） -例句：口If I were you,I would take the job.(我不是你，但假设我是你)口If he had time,he could help us.(他现在没时间，但假设他有时间) ·对过去事实的虚拟（假设与过去事实相反） -结构：if从句(had+过去分词done),主句(would/.could/should/might+have+过去分词done) -例句：口If she had studied harder,she would have passed the exam.(她过去设努力学，但假设她 努力学了)口You might have caught the bus if you had left earlier.(你过去没早出发，但假设你早出 发了) ·对将来事实的虚拟（假设将来不太可能发生的情况） -结构：if从句(should+动词原形did/were to do),主句(would/could/,should/might+动词原形) -例句：口If it should rain tomorrow,we would stay at home.(明天不太可能下雨，但假设下雨)口If he were to come next week,I should tell him the news.(他下周不太可能来，但假设他来) ·虚拟语气在名词性从句中的应用（表示建议、要求、命令等） -常见引导词：suggest/.advise/demand/require/insist+that从句(should+动词原形，should可省略) -例句：The teacher suggested that we(should)finish the task on time.(建议我们按时完成任务)口 It is necessary that he(should)attend the meeting.(要求他参加会议) 【即学即练】 1.【对现在虚拟】IfI_(be)you,I_(accept)the gift. 2.【对过去虚拟】If she_(arrive)earlier,,she_(meet)the famous writer. 3.【对将来虚拟】Ifit_(snow)tom orrow,we_(not go)to the park 4.【名词性从句虚拟】The manager demanded that all workers_((finish)the work before Friday. 5.【结构辨析】判断句子虚拟时间："'If I had known the truth,I would not believe him.”是对 事实的虚拟。 语法复习|英语|外研版 ENGLISH-语法复习系列资料（外研版） 知识点二：虚拟语气的特殊用法及混合虚拟 ·含蓄虚拟语气（无f从句，通过介词副词/上下文暗示假设） 1.常见标志词短语 -without(没有)、but for(要不是)、otherwise(否则)、or(否则)、given(假如) 2.结构与例句 -对现在/将来的虚拟：主句用would/could/should/might+动词原形例句：Vithout water,human beings would die.(没有水，人类就会死亡。) -对过去的虚拟：主句用would/could/should/.might+have+过去分词例句：But for your help,I couldn't have passed the exam.(要不是你的帮助，我不可能通过考试。) ·混合虚拟语气(f从句与主句时间不一致) -时间组合规则 *从句对过去虚拟，主句对现在虚拟：if从句(had done),主句(would/could+动词原形) *从句对现在虚拟，主句对过去虚拟：if从句(did/were),主句(would/could+have done) 一例句 *If you had told me the truth yesterday,.I would not be angry now.(从句过去，主句现在：如果你昨 天告诉我真相，我现在就不会生气了。) *If I were you,I would have taken that chance.(从句现在，主句过去：如果我是你，我就会抓住那 个机会了。) ·wish/asif引导的虚拟语气 -wish后的宾语从句（表达未实现的愿望） *对现在的愿望：从句用过去式(be动词用were)例句：I wish I were taller..(我希望我个子高一点。) *对过去的愿望：从句用had+过去分词例句：She wishes she had studied abroad last year..(她希 望去年出国留学了。) *对将来的愿望：从句用would/could+动词原形例句：I wish he would come to my birthday party tom orrow.(我希望他明天能来我的生日派对。) -asif/as though引导的方式状语从句（仿佛/好像，与事实不符） *对现在的虚拟：从句用过去式例句：He talks as if he knew everything.(他说话的样子好像什么都 知道似的。) *对过去的虚以：从句用had+过去分词例句：She looked at me as if she had seen a ghost..(她看 着我，好像见了鬼一样。) ·f省略与倒装（虚拟条件句的特殊句式） -倒装规则 *当if从句含were/should/had时，可省略if,将were/should/had提至句首，构成部分倒装 一例句 *NVere I you,I would accept the invitation.(=If I were you.)(如果我是你，我会接受邀请。) *Should it rain tomorrow,we would cancel the picnic.(=If it should rain..)(万一明天下雨，我们就 取消野餐。) *Had she worked harder,,she would have succeeded.(=If she had worked harder.)(如果她更努 力一点，早就成功了。) 知识点三：虚拟语气的其他重要考点及易混点辨析 ·虚拟语气在tis+adj.+that从句中的应用（高中核心） -常见形容词（表建议/要求必要/重要）：necessary(必要的)、important(重要的)、strange(奇怪的)、 natural(自然的)、essential(关键的) -结构与例句：that从句用(should)+动词原形，should可省略口It is necessary that we(should) take measures to protect the environment.(我们有必要采取措施保护环境。)口It is strange that he (should)refuse such a good offer..(他竟然拒绝这么好的提议，真奇怪。) ·would rather后的虚拟语气（高中常考） -时间规则：口对现在/将来的虚拟：从句用过去式(be动词用were)例句：I would rather you came tomorrow.(我宁愿你明天来。)口对过去的虚拟：从句用过去完成时(had+过去分词)例句：She would rather she hadn't said those words.(她宁愿自己设说过那些话。) ·asif/as though与Iike的易混点辨析（高中易错） -口as iflas though引导从句，表虚拟时用过去式/过去完成时（与事实不符）例句：He acts as if he were a boss.(他表现得好像自己是老板似的。)（实际上不是） -口like作介词，后接名词/代词，不接从句（表真实比较）例句：He acts like a boss.(他表现得像个 老板。)（可能是真实情况） ·虚拟语气与陈述语气在insist/suggest后的区别（高中难点） -口insist表“坚持主张/建议”时用虚拟语气：insist that...(should)+动词原形例句：He insisted that we(should)leave immediately.(他坚持主张我们立刻离开。) -口insist表“坚持认为坚信事实”时用陈述语气（根据实际时间用相应时态）例句：She insisted that she was right.(她坚持认为自己是对的。)（陈述事实） -口suggest表“建议”时用虚拟语气：suggest that..(should)+动词原形例句：I suggest that we (should)hold a meeting.(我建议我们开个会。) -口suggest表“暗示/表明”时用陈述语气（根据实际时间用相应时态）例句：Her smile suggested that she was satisfied.(她的微笑表明她很满意。)（暗示事实） ·虚拟语气在if only从句中的应用（高中拓展） -意义：“要是…就好了”（表达强烈愿望，比wsh语气更强） -时间规则：口对现在的愿望：用过去式(be动词用were)例句：If only I were rich.(要是我有钱就 好了。)口对过去的愿望：用过去完成时(had+过去分词)例句：If only I had studied harder..(要是 我当初更努力学习就好了。)口对将来的愿望：用would/.could+动词原形例句：If only the rain would stop.(要是雨停了就好了。) 语法复习|英语|外研版 ENGLISH-语法复习系列资料（外研版） 考法一：含蓄虚拟语气的时态判断 ·核心：根据标志词(without//but for/otherwise/or等)及上下文，判断对现在、将来或过去的虚拟，选择 正确的主句动词形式 ·真题1（语法填空）： -But for your timely support,we_(fail)to complete the project on schedule. -答案：would have failed解析：由标志词“But for'”及语境可知，此处对过去事实进行虚拟（实际已 完成项目)，主句应用would/could/should/might+have+过去分词，故填would have failed。. ·真题2（单项选择）： -Without electricity,human life_quite different today. A.is B.will be C.would be D.would have been -答案：C解析：由标志词“Vithout'”及时间状语“today'”可知，此处对现在事实进行虚拟，主句应 用would/could/should/might+动词原形，故选C。 考法二：含蓄虚拟与混合虚拟综合应用 ·核心：结合上下文语境或标志词，判断含蓄虚拟的时间维度及混合虚拟中主从句的时间差异，选择正确 动词形式 ·真题1（语法填空）： But for the heavy traffic this morning,we_(arrive)at school on time. -答案：would have arrived -解析：由标志词”But for”可知为含蓄虚拟，"this morning”表明是对过去事实的虚拟，主句 用"would/could/should/might+have+过去分词”，故填would have arrived。. ·真题2（单项选择）： If you_(tell)me the truth yesterday,you _(not be)so guilty now. A.told;wouldn't be B.had told;wouldn't be B.told;wouldn't have been D.had told;wouldn't have been -答案：B -解析：从句"yesterday'”表过去，用过去完成时"had told”;主句"now”表现在，用would+动词原形”， 构成混合虚拟语气，故选B。 老法三：虚拟语气的综合应用与易混点辨析 ·核心：结合不同时间的虚拟结构、特殊标志词（如without、.but for)及易混动词(insist/suggest)的语 气辨析，判断虚拟语气的正确形式 ·真题1（单项选择）： The manager insisted that the project_by the end of next month,but we all knew it__impossible without extra workers A.finish were B.would finish was B.be finished was D.was finished would be -答案：C解析：第一空insist表“坚持主张”，后接虚拟语气，从句用(should)+动词原形，project 与finish为被动关系，故用(should)be finished;第二空insist表“坚持认为”，后接陈述语气，根 据knew可知用一般过去时，it为单数，be动词用was。 ·真题2（语法填空）： If only we_(take)his advice yesterday!Otherwise,we_(not get)into such trouble now. -答案：had taken wouldn'tget解析：第一空if only表对过去的愿望，用过去完成时had taken;第二 空otherwise暗示含蓄虚拟，根据now可知对现在的虚拟，主句用wouldn't+动词原形get。 语法复习|英语|外研版 ENGLISH-语法复习系列资料（外研版） 真题演练 演练一：单项选择（共10题） 1.If Iyou,I__accept the job offer immediately. A.am will B.were would B.was would D.were will 2.Without your help,we_the task on time last week. A.couldn't finish B.can't finish B.couldn't have finished D.won't finish 3.The teacher suggested that we__more attention to grammar. A.pay B.paid B.will pay D.have paid 4.If it _tomorrow,we would cancel the picnic. A.rains B.rained B.will rain D.should rain 5.He talks as if he_all the answers to the questions. A.knows B.knew B.has known D.had known 6.I would rather you_here yesterday. A.come B.came B.had come D.have come 7.It is necessary that he_the meeting on time. A.attends B.attended B.will attend D.attend 8.If only Ithe exam last month! A.passed B.had passed B.would pass D.pass 9.The smile on her face suggested that she _satisfied with the result. A.be B.was B.should be D.were 10.If you-harder before,you-the test now. A.studied would pass B.had studied would pass B.studied would have passed D.had studied would have passed 演练二：填空试题（共10题） 1.If she_(study)harder,she would have passed the exam. 2.I wish I (be)taller than 1.7 meters. 3.But for your support,we_(not complete)the project last year. 4.The doctor advised that he _(take)a rest for a week. 5.He treats me as if I_(be)his sister. 6.If it_(rain)tomorrow,we would stay at home. 7.I would rather you_(not tell)her the truth yesterday. 8.Without water,all living things-(die). 9.It is strange that she_(refuse)such a good offer. 10.If only we_(have)more time to prepare! 演练三：语法填空（共10空） *阅读下面短文，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。 Last Monday,my friend Tom asked me for help with his English exam.He said,"I really wish I-(start) studying earlier!”I suggested that he_(focus)on虚拟语气first,.as it was his weakest area. Tom looked worried and said,"If only I(listen)to the teacher carefully in class!"I comforted him,"But for your courage to ask,you_(not improve)at all.If you_(follow)my advice now,you _(pass)the exam next week.” We spent two hours reviewing.Tom insisted that he_(understand)the rules,but when I asked him to explain a mixed virtual sentence,he looked confused."It's as if you_(never learn)it before!"I joked. Finally,Tom said,"I would rather I_(not waste)so much time playing games.It is essential that I -(make)full use of the remaining days."I he will make progress with this attitude! 答案 演练一：单项选择 1.B2.C3.A4.D5.B6.C7.D8.B9.B10.B 演练二：填空试题 1.had studied 2.were 3.couldn't have completed 4.(should)take 5.were 6.should rain rained were to rain 7.hadn't told 8.would die 9.(should)refuse 10.had 演练三：语法填空 1.had started 2.(should)focus 3.had listened 4.couldn't have improved 5.follow 6.would pass 7.understood 8.had never learned 9.hadn't wasted 10.(should)make 语法复习」英语|外研版