含情态动词的被动语态should be allowed to等-备战2025-2026学年九年级英语上学期期末语法全解（人教版）

ENGLISH-初三全一册资料（人教版） Chapter1含情态动词的被动语态(should be allowed to等) 考频分析 含情态动词的被动语态是中考英语语法的重要考点，考频占语法总量的5%左右，主要分布在核心题型中： 单项选择(1-2题)、语法填空(1-2题)、书面表达（关键应用，直接影响语言表达的得体性与准确性）。 在语境理解类题目中，含情态动词的被动语态的结构及语义辨析往往是解题关键。 考查内容 中考对含情态动词的被动语态的考察聚焦三大维度，覆盖基础用法与语境应用： ·结构构成：情态动词+be+过去分词的基本框架（如should be allowed to、must be done等）； ·情态意义：不同情态动词(can、may、must、should等)表达的语气差异（能力、许可、义务、推测等）； ·语境转换：主动语态与含情态动词的被动语态的句式转换规则及语境应用场景。 精讲精练 知识点一：含情态动词的被动语态 ·1.基本结构（情态动词+be+过去分词） -常见情态动词：should(应该)、can(能够)、may(可以)、must(必须)、need(需要) -构成规则：情态动词后接be动词原形，再加及物动词的过去分词(done) -例句：☐Teenagers should be allowed to choose their own clothes..(should be allowed:应该被允 许)口The work must be finished by Friday.(must be finished:必须被完成) ·2.否定形式（情态动词+not+be+过去分词） -结构变化：在情态动词后直接加not,其余部分不变 -例句：口You shouldn't be allowed to smoke here.(shouldn't be allowed:不应该被允许)口This book can't be taken out of the library.(can't be taken:不能被带出) ·3.疑问形式（情态动词+主语+be+过去分词） 一结构变化：将情态动词提至句首，主语紧随其后，其余部分不变 -例句：口Should students be allowed to use mobile phones in class?(should..be allowed:应该被 允许吗)☐Can this problem be solved easily?(can...be solved:能够被解决吗) 【即学即练】 1.【基本结构】下列选项中，含情态动词被动语态结构正确的是？ A.The door should closed B.The door should be closed. C.The door should to be closed. D.The door is should closed. 2.【否定形式】请写出"You should be allowed to go out.”的否定形式： 3.【疑问形式】将"The work must be finished by Friday..”改为一般疑问句： 4.【结构辨析】"Can this problem be solved easily?”的结构类型是？ A.含情态动词被动语态肯定句 B.含情态动词被动语态否定句 C.含情态动词被动语态疑问句 D.主动语态疑问句 5.【语义理解】"Teenagers should be allowed to choose their own clothes.”中"should be allowed"表达的 语气是？ A.能力 B.许可/建议 C.强烈必要性 D.推测 初三|英语|人教版 ENGLISH-初三全一册资料（人教版） 知识点二：含情态动词的被动语态的应用与扩展 ·1.不同情态动词的语义差异（表达不同语气和意图） -口情态动词核心含义should(应该，表义务或建议)、can(能够，表能力或许可)、may(可以，表许 可或推测)、must(必须，表强烈必要性)、need(需要，表必要性) 一口被动语态中的语义表达结构统一为「情态动词+be+过去分词」，但情态动词本身含义决定句子意 图例句：口The environment must be protected by everyone.(must be protected:必须被保护，强 调强制性)☐This word can be pronounced in two ways.(can be pronounced:能够被发音，表可能 性) ·2.特殊情态动词的被动形式(need/dare) -口need作情态动词的被动结构仅用于否定句或疑问句，结构为「need+not+be+过去分词」（注 意：need作实义动词时需用need to be done)例句：These flowers needn't be watered every day. (needn't be watered:不需要被浇水，情态动词用法)口Does the machine need to be repaired?(need to be repaired:需要被修理，实义动词用法) -口dare的被动形式多见于否定句「dare not+be+过去分词」，表“不敢被.”例句：The truth dare not be mentioned by anyone.(dare not be mentioned:不敢被提及) ·3.含情态动词的被动语态疑问句回答 -口一般疑问句回答结构：Yes,主语+情态动词./No,主语+情态动词+not.例句：一Should the plan be changed?-Yes,it should.No,it shouldn't. -口特殊疑问句回答需根据疑问词具体回应，但保持被动语态结构例句：一hen must the task be completed?-It must be completed by tomorrow. ·4.情态动词被动语态的复合句应用 -口宾语从句中的被动语态主句为一般现在时，从句情态被动结构不变例句：I believe that the rules should be explained clearly to students.(should be explained:应该被解释) -口条件句中的被动语态在if引导的条件句中保持结构一致性例句：If the food isn't kept in the fridge,it may go bad..(may be kept:可能被保存，主动态省略) ·5.易错点提醒 -口情态动词后永远接动词原形(be)错误：The door should closed.→正确：The door should be closed. -口过去分词与主语保持被动关系错误：The problem can solved by him.→正确：The problem can be solved by him. -口情态动词的否定形式直接加not错误：Students may not to be allowed to leave.→正确：Students may not be allowed to leave. 知识点三：情态动词被动语态的特殊句式与中考高频考点 ·1.情态动词被动语态的复合疑问句式 一基础句式结构（中考必考）： *口一般疑问句：情态动词+主语+be+过去分词+.？ *口特殊疑问句：疑问词+情态动词+主语+be+过去分词+.？ *口反义疑问句：陈述部分含情态动词被动，疑问部分用「情态动词+主语」 -基础句式示例（中考核心）： *☐Must the homework be handed in today?(作业必须今天交吗？) *口How can this problem be solved?(这个问题该如何解决？) *口The environment should be protected,shouldn'tit?(环境应该受到保护，不是吗？) *Where may the lost keys be found?(丢失的钥匙可能在哪里被找到) *Students needn't be punished too strictly,.need they?(学生不需要被惩罚得太严厉，是吗) ·2.情态动词被动语态的否定疑问与回答 一否定疑问结构（中考易错）： *☐Can't the door be unlocked?(门难道打不开吗？) *口Shouldn't the rules be explained clearly?(规则难道不应该被解释清楚吗？) -回答规范格式（中考必会）： *O一Can't the problem be solved?一Yes,it can.(不，能解决)INo,it can't.(是的，不能解决) *口-Shouldn't the room be cleaned？一Yes,it should.(不，应该打扫)INo,it shouldn't.(是的，不 应该打扫) ·3.情态动词被动语态与时间状语搭配 一时间状语搭配（中考高频）： *口by短语表截上时间：must be done by..(必须在…前完成) *口every/day短语表频率：should be done every..(应该每天/定期被做) *口now/at once短语表紧迫性：need to be done now(需要立即被做) 一实战应用例句（中考真题导向）： *口The project must be completed by next Monday.(项目必须在下周一前完成) *口These plants should be watered every two days.(这些植物应该每两天浇一次水) *口The sick child must be sent to hospital at once.(生病的孩子必须立刻被送医) *口The windows need to be cleaned now.(窗户现在就需要被清洁) ·4.情态动词被动语态的中老易错点辨析 一重点辨析项目（中考失分点）： *口need作情态动词与实义动词的被动形式区别：情态动词：needn't be done(不需要被做)实义 动词：don't need to be done(不需要被做) *口must表推测时的被动语态：must be done(一定被做)→The light is on.He must be allowed to enter..(灯亮着，他一定被允许进入了) *口can表推测时的被动语态否定式：can't be done(不可能被做)→The door can't be locked because I have the key.(门不可能被锁着，因为我拿着钥匙) -纠错强化训练（中考真题再现）： *口错误：The room needn't to be cleaned.正t确：The room needn't be cleaned.(房间不需要被打 扫) *O错误：The answer must found by yourself..正t确：The answer must be found by yourself..(答案 必须由你自己找出) *口错误：This book may not taken out..正确：This book may not be taken out..(这本书不可以被带 出) 初三|英语」人教版 ENGLISH-初三全一册资料（人教版） 考法一：含情态动词的被动语态基本结构辨析 ·核心：根据语境判断情态动词被动语态的基本结构（肯定否定疑问），选择正确的情态动词及被动形式 ·真题1（语法填空）： These old books_(must/should)be thrown away.They are still useful for research. -答案：shouldn't解析：根据后句“still useful'”可知，旧书不应该被扔掉，否定形式为“情态动词+not+be+ 过去分词”，故填shouldn't。 ·真题2（单项选择）： --the problem_by your brother yesterday? A.Can solve B.Must be solved C.Could be solved D.Need solve -答案：C解析：疑问形式结构为“情态动词+主语+be+过去分词”，排除A、D;“yesterday'”提示 此处需用表过去可能性的coud,must表现在或将来的必须，故选C。 考法二：情态动词被动语态的句式转换与语义辨析 ·核心：根据语境选择恰当的情态动词，完成主动语态到被动语态的转换，并理解不同情态动词表达的语 义差异 ·真题1（句型转换）： -Ve must finish the work before Friday.(改为被动语态) The workbefore Friday. -答案：must be finished解析：原句为主动语态，有情态动词must,被动语态结构为“情态动词+be+ 过去分词”，finish的过去分词为finished,故填must be finished。 ·真题2（单项选择）： These flowers_every day,or they will die. A.must water B.must be watered C.can water D.can be watered 一答案：B解析：根据语境“否则它们会死”可知，花必须被浇水，“必须”用must,被动语态结构为 must be+-过去分词，water的过去分词为watered,故选B。 考法三：情态动词被动语态的综合应用 ·核心：结合语境判断情态动词的语义（必要性、可能性、许可等），并准确运用被动结构（情态动词+be +过去分词) ·真题1（单顶选择）： --Can we take the books out of the reading room?-No,they_here.It's a rule. A.must be kept B.can keep C.must keep D.can be kept 一答案：A解析：根据语境“这是规定”可知，书籍“必须被保留”在阅览室，强调强制性规则。主语 “they(books)”是动作“keep”的承受者，需用被动语态，结构为“must+be+kept”。 ·真题2（语法填空）： Teenagers under 18-(should,allow)to drive because they are too young. -答案：should not be allowed解析：主语“teenagers”是动作“allow”的承受者，需用被动语态；根 据语境“因为他们年龄太小”可知，此处表示“不应该被允许”，需用否定形式。情态动词被动否定结 构为“should not+be+allowed”。 初三|英语」人教版 ENGLISH初三全一册资料（人教版） 解题小妙招 情态被动妙招 情态被动看结构，情态动词加be done; 肯定结构“情态+be done”,否定“情态+not+be done?”; 疑问提前情态词，“情态+主语+be done'”莫忘记； 语义辨析看语境，必要“must”可能“coud”; 主动变被动，情态保留不变更，“be done”结构要记清； 综合应用先判断，动作承受用被动，情态语义要分明。 真题演练 演练一：单项选择（共10题） 1.These old buildings_protected because they are part of history A.must be B.can be C.may be D.should be 2._the homework _before class tomorrow A.Must finish B.Can be finished C.Should be finished D.Need finish 3.The broken bikerepaired by my father yesterday A.can be B.must be C.could be D.may be 4.Students_use mobile phones in class according to the school rules A.mustn't be allowed to B.shouldn't be allowed to C.needn't be allowed to D.can't be allowed to 5.This problem_solved by the teacher if we can't work it out A.can be B.must be C.should be D.may be 6.The flowers_every day,or they will die A.must water B.must be watered C.can water D.can be watered 7.the room_by you yesterday A.Was cleaned B.Were cleaned C.Did clean D.Do clean 8.The lost keys_somewhere in the classroom,I think A.can be found B.must be found C.should be found D.may be found 9.These books_out of the library,you know the rule A.can't be taken B.mustn't be taken C.shouldn't be taken D.needn't be taken 10.The machine __every week to keep it working well A.need clean B.needs clean C.needs to be cleaned D.need to be cleaned 演练二：填空（共10题） 1.The environment must(protect)by everyone-_ 2.This word can(pronounce)in two ways- 3.Students should (allow)to choose their own hobbies-_ 4.The work must(finish)before Friday- 5.These flowers needn't (water)every day-- 6.The door can't(open)because the key is lost-_ 7.Should the plan (change)right now- 8.The truth dare not(mention)by anyone-_ 9.This problem must(solve)as soon as possible-_ 10.The children must(take)good care of- 演练三：语法填空（共10空） Nowadays,more and more people pay attention to environmental protection.The air and water(1)-(must protect)by all of us.We(2)(should not throw)rubbish everywhere.Some factories(3)_(must not pour) waste water into rivers.Trees(4)_(can plant)to make our city more beautiful.Plastic bags(5)_(should not use)too much because they are bad for the environment.Old newspapers and bottles(6)_(can recycle)to save resources.We(7)_(must try)our best to protect nature.If everyone does something for the environment,the world (8)_(can become)better.Our future (9)_(must not destroy)by pollution. Let's take action now and make our planet cleaner and greener.Remember,environmental protection (10)(should start)from small things in our daily life. 答案 演练一：单项选择 1.A2.C3.C4.B5.A6.B7.A8.D9.B10.C 演练二：填空 1.be protected 2.be pronounced 3.be allowed 4.be finished 5.be watered 6.be opened 7.be changed 8.be mentioned 9.be solved 10.be taken 演练三：语法填空 1.must be protected 2.should not throw 3.must not pour 4.can be planted 5.should not be used 6.can be recycled 7.must try 8.can become 9.must not be destroyed 10.should start 初三|英语引人教版