状语从句的省略-2025-2026学年高中英语必修三语法知识点全解（外研版）

高中外研版必修3 【寒假专版】 A版知识点全解 寒假专版 【专题】状语从句的省略 语法专项突破 考频分析 高中外研版必修3中，状语从句的省略是重要语法点，考频占句法总量的15%左右，主要分布在 核心题型：单项选择1-2题、语法填空1-2题、完形填空1-2题。在语境理解类题目中，状语从句 主语与主句主语的一致性及逻辑关系判断是解题关键。 考查内容 ·省略条件：主句主语与从句主语一致且从句谓语含be动词时，可省略从句主语和be动词 。常见类型：时间状语从句(when/while/as等引导)、条件状语从句(if/unless引导)、让步状语从句 (though/although引导)的省略形式 。语境判断：结合上下文识别省略部分的完整含义，避免因成分缺失导致理解偏差 知识点一：状语从句的省略 1.省略条件（主句主语与从句主语一致，且从句含be动词) 1.常见情况：时间、条件、让步、方式状语从句中，可省略从句主语和be动词 2.例句： ●When(she was)walking in the street,she met an old friend.(时间从句省略主语和was) ·If(it is)necessary,we will help you.(条件从句省略主语和is) 2.特殊省略（从句主语为it,且含be动词) 1.用法：it作形式主语/天气等意义时，可省略it和be动词 2.例句： ·Though((it was)cold,he still wore a T-shirt.(让步从句省略it和was) ·When(itis)possible,.please call me back.(时间从句省略it和is) 高中外研版必修3 【寒假专版】 A版知识点全解 3.不可省略的情况（主语不一致或从句无be动词） 1.错误示例： 。While he reading,the phone rang.(从句无be动词，应改为While he was reading) 。If raining,we will stay at home.(主句主语we与从句逻辑主语it不一致，应改为If it rains) 知识点二：状语从句的省略规则与应用 1.时间状语从句的省略(when/vhile/.as引导) 1.省略条件：从句主语与主句主语相同，且从句谓语包含be动词 2.省略形式：保留”连词+分词/形容词/介词短语” 3.例句： When (she was)walking in the park,she met an old friend. While (I am)studying,I always listen to soft music He looked nervous as (he was)waiting for the result. 2.条件状语从句的省略(if/unless引导) 1.省略条件：从句主语与主句主语相同，且从句谓语包含be动词 2.省略形式：保留”连词+分词/形容词/名词 3.例句： .If (it is)possible,I will visit you tomorrow. Unless (you are)invited,you shouldn't enter the room. .Students will get a prize if(they are)the first to finish. 3.让步状语从句的省略(though/although/even if引导) 1.省略条件：从句主语与主句主语相同，且从句谓语包含be动词 2.省略形式：保留”连词+分词/形容词/副词” 3.例句： Though (he was)tired,he continued working. Even if (I am)busy,I will help you. Although (she is)young,she speaks three languages. 4.方式状语从句的省略(as if/as though引导) 高中外研版必修3 【寒假专版】 A版知识点全解 1.省略条件：从句主语与主句主语相同，且从句谓语包含be动词 2.省略形式：保留”连词+分词/形容词/介词短语” 3.例句： He talks as if (he is)a expert. She cried as though (she was)hurt They stood there as if (they were)waiting for someone. 5.省略后的常见错误与纠正 1.错误：When listening to music,.the doorbell rang.(主从句主语不一致，不可省略) 纠正：When I was listening to music,the doorbell rang 2.错误：If raining,we will stay at home.（从句主语it不可省略) 纠正：If it rains,we will stay at home. 3.错误：Though working hard,.his grades didn't improve..(主从句主语不一致) 纠正：Though he worked hard,his grades didn't improve. 知识点三：状语从句的省略 1.时间状语从句的省略（主句主语与从句主语一致，从句谓语含be动词） 1.基础用法拓展： ●while(b.be)doing→例句：She was reading while(she was)waiting for the bus. ●when(sb.be)doing→例句：I met her when (I was)walking in the park. ·as(sb.be)doing→例句：He sang as (he was)driving ●before/after(b.be)doing→例句：After(she finished)doing homework,she went to bed. 2.条件状语从句的省略（主句主语与从句主语一致，从句谓语含be动词) 1.基础用法拓展： 。if(sb.be)+adj./done→例句：If(itis)necessary,you can call me.. 。unless(sb.be)+adj./done一→例句：Unless(you are)invited,don't go to the party. 。once(sb.be)+adj./done→例句：Omce(itis)heated,.the ice will melt.. 3.让步状语从句的省略（主句主语与从句主语一致，从句谓语含be动词） 1.基础用法拓展： 。though/although(sb.be)+adj./done一→例句：Though (he was)tired,he kept working. 3 高中外研版必修3 【寒假专版】 A版知识点全解 。even if/though(sb.be)+adj/done→例句：Even if (I am)busy,I will help you. ·whether(sb.be)+adj./done→例句：Whether(you are)happy or sad,I will be with you. 考法精析 考法一：状语从句省略后的非谓语动词形式判断 核心：根据从句主语与主句主语的逻辑关系（主动/被动）及动作发生时间，选择正确的非谓语动 词形式(doing/done/todo) 真题1（语法填空）： _(heat)to 100C,water turns into steam. 答案：Heated 解析：heat与主语water为被动关系(”水被加热”)，省略从句itis后，用过去分词Heated。 真题2（完形填空)： While(wait)for the train,she read a magazine. A.wait B.waiting C.waited D.to wait 答案：B 解析：wait与主语she为主动关系，while引导的时间从句省略she was后，用现在分词waiting。 考法二：状语从句省略与非谓语动词搭配 核心：结合状语从句省略条件，判断非谓语动词的主动/被动关系及时态先后，选择正确形式 真题1（语法填空）： -(see)from the top of the mountain,the city looks more beautiful. 答案：Seen 解析：see与逻辑主语the city为被动关系(”被看见”)，省略从句主语和be动词后，用过去分词Seen。 真题2（完形填空)： _the project,they discussed the next step for two hours. A.Finishing B.Having finished C.To finish D.Finished 答案：B 解析：finish与主语they为主动关系，且”完成项目”发生在”讨论”之前，用现在分词的完成式 Having finished,表动作先于主句动作完成。 考法三：状语从句省略的逻辑主语一致性与特殊引导词应用 高中外研版必修3 【寒假专版】 A版知识点全解 核心：判断主从句逻辑主语是否一致，掌握特殊引导词省略规则及独立主格结构的区分 真题1（单项选择）： -the news,tears ran down her face. A.Hearing B.Heard C.When she heard D.When hearing 答案：C 解析：主句主语”tears'”与hear”的逻辑主语不一致(hear的逻辑主语应为人)，不可直接省略，需补 全从句主语和谓语，C选项符合语法规则：AD项省略后形成悬垂分词，B项为被动语态不符合语境。 真题2（语法填空）： The meeting_(hold)tomorrow,we need to prepare the documents in advance 答案：to be held 解析：从句逻辑主语”the meeting”与主句主语”we”不一致，不可用状语从句省略，需用独立主格结 构（逻辑主语+不定式）表将来动作，hold与meeting为被动关系，故填to be held。. 解题小妙招 非谓语判断妙招 主从主语先看同，不同省略不可能： 主动关系用doing,被动关系done来行： 动作先后要分明，先于主句用完成(having done/having been done): 同时发生简单式(doing/done),目的将来todo跟； 时间条件让步状，省略be后形式定。 真题演练 演练一：单项选择试题（共10题） 1.When for his views about his teaching job,Philip said he found it very interesting and rewarding. A.asking B.asked C.to ask D.ask 2.the difficult math problem,I have consulted Professor Zhang several times. A.Working out B.Worked out C.To work out D.Having worked out 3.Though to go to bed early,he stayed up late watching TV. A.telling B.told C.to tell D.having told 4.-in the mountains for a week,the two students were finally saved by the local police. A.Lost B.Losing C.Having lost D.To lose 5.Ifproperly,time is the money we never get back. A.using B.used C.to use D.use 高中外研版必修3 【寒假专版】 A版知识点全解 6.-the past year as an exchange student in Hong Kong,Linda appears more mature than those of her age. A.Spending B.Spent C.Having spent D.To spend 7.Thoughmany times,he still couldn't understand the operation instructions. A.explaining B.explained C.having explained D.to explain 8.-the project in time,the staff were working at weekends. A.Completing B.Having completed C.To complete D.Completed 9.When__about the reason for the accident,the driver remained silent. A.asking B.asked C.to ask D.ask 10.-by the heavy snow,the flight had to be put off. A.Blocking B.Blocked C.Having blocked D.To block 演练二：填空试题（共10题） 1.While-(wait)for the bus,I noticed a group of children playing games. 2.Once(heat),the metal expands and becomes softer 3.Though(tire),she continued to help her mother with the housework. 4.-(see)from the sky,the city looks like a colorful puzzle. 5.After (finish)his homework,he went to the gym to exercise. 6.If(invite),I will definitely attend your birthday party 7.-(lose)in thought,he didn't hear the teacher call his name. 8.-(work)hard all day,he felt exhausted and went to bed early. 9.Unless(repair),the broken machine will not work properly. 10.-(find)the right direction,we managed to reach the village before dark. 演练三：语法填空试题（共10空) My name is Li Ming,and I recently participated in a volunteer project in a mountain village. -(arrive)there early in the morning,we were warmly welcomed by the villagers.The local school was in poor condition,with only three classrooms-(equip)with old desks.While(teach)the children English, I was deeply moved by their eagerness to learn. One afternoon,_(walk)through the forest with the children,we found a small river.Though _(tire), the children insisted on helping me carry water for the elderly.(see)their smiling faces,I realized the true meaning of volunteering. Before_(leave)the village,I promised to return next summer.The experience taught me that happiness comes from(give)rather than(receive).-(inspire)by this trip,I decided to start a charity group in my 6 高中外研版必修3 【寒假专版】 A版知识点全解 school to help more children in need. 答案区 演练-：1.B2.D3.B4.A5B6.C7B8.C9.B10.B 1.waiting 2.heated 3.tired 4.Seen 5.finishing 6.invited 7.Lost 8.Having worked 9.repaired 10.Having found 1.Arriving 2.equipped3.teaching 4.walking 5.tired6.Seeing 7.leaving 8.giving 9.receiving 10.In- spired 7