复合句 04-2025-2026学年英语中考复习语法知识点全解（外研版)

初三外研版（语法） 【专题】 状语从句全解 语法专版 【专题】状语从句 复合句专项突破 考频分析 初三外研版中，状语从句是重点语法模块，考频占句法总量的25%左右，贯穿试卷所有核心题型： 单项选择3-4题、完形填空2-3题、语法填空2-2题、书面表达核心考察，直接影响句子逻辑性与 连贯性。在语境理解类题目中，时间状语从句的时态搭配、条件状语从句的主将从现规则及让步状 语从句的转折逻辑往往是解题关键。 考查内容 。时间状语从句：when（当…时，动作可延续或短暂)、while(当…时，动作延续)、as soon as (一…就，主将从现)的用法辨析与时态匹配 ·条件状语从句：f(如果，表肯定条件)、unless(除非，=-if not,表否定条件)的语义逻辑及”主将 从现”原则的应用 ·让步状语从句：hough/although(虽然，尽管)引导从句时主句不可用but,以及与主句的转折关系 表达 ·原因状语从句：because(直接原因，回答why)、since(已知原因，译为”既然”)的语境选用 知识点一：状语从句的分类及基础用法 1.时间状语从句（引导词：when/while//as soon as) 。when(当…时，动作可长可短)→例句：I was reading when he came in.(他进来时我正在读 书) 。while(当…时，强调动作同时进行，从句常用进行时)→例句：While she was cooking,Iwas washing dishes.（她做饭时，我在洗碗) 。as soon as(一…就…，表动作紧接着发生)→例句：I will call you as soon as I arrive..(我一 到就给你打电话) 2.条件状语从句（引导词：if/unless,遵循主将从现原则） 初三外研版（语法） 【专题】 状语从句全解 。if(如果，表肯定条件)→例句：If it rains tomorrow,we will stay at home..(如果明天下雨，我们 就待在家里) ·unless(除非，相当于if.not,表否定条件)→例句：You won't pass the exam unless you study hard.(除非你努力学习，否则不会通过考试) 3.让步状语从句（引导词：hough/although,意为”虽然/尽管”，不能与but连用） ·though/although(虽义同，但although更正式)→例句：Though he is young,he knows a lot.(虽 然他年轻，但懂得很多) 。例句：Although it was late,.he still went on working.(尽管很晚了，他仍然继续工作) 4.原因状语从句（引导词：because/since,表直接原因或已知原因） ·because(因为，表直接原因，回答why提问)→例句：He didn't go to school because he was ill.. (他没上学是因为生病了) 。since(既然，表双方已知的原因，语气比because弱)→例句：Since you are free today,let'sgo shopping.(既然你今天有空，我们去购物吧) 知识点二：状语从句分类及用法 l.时间状语从句(when/while/as soon as) 1.连接词用法 。when(当…时，动作可长可短) 。while(当…时，动作持续进行) 。as soon as(一…就…，动作紧接着发生) 2.时态规则 ·while引导时，主句和从句常用进行时 ·as soon as引导时，遵循'主将从现”（主句将来时，从句一般现在时） 3.例句： ·I was reading when the doorbell rang.(when引导，主句过去进行时，从句一般过去时) 。While she was cooking,I was doing homework.(while引导，主从句均为过去进行时) ●He will call you as soon as he arrives.(as soon as引导，主句将来时will call,从句一般现在时 arrives 2.条件状语从句(if/unless,主将从现) 1.连接词用法 。f(如果，表肯定条件) 2 初三外研版（语法） 【专题】 状语从句全解 。unless(除非，=if not,表否定条件) 2.”主将从现”规则 ·主句用一般将来时(w+动词原形)，从句用一般现在时（动词原形三单） 3.例句 ·If it rains tomorrow,we will stay at home.(if肯定条件，主句will stay,从句rains) 。You won't pass the exam unless you study hard.(unless否定条件，主句won't pass,从句stuy) 。Unless he hurries up,he will miss the bus.(=If he doesn't hurry up.,主句will miss,.从句hurries) 3.让步状语从句(though/although) 1.连接词用法 ·though/although(虽然/尽管，不可与but连用，可与yet/still连用) 2.句子结构 。从句在前时，用逗号与主句隔开：从句在后时，无需逗号 3.例句： 。Though it was late,he continued working.(从句在前，逗号隔开；though不与but连用) ●She decided to go there although she was tired.(从句在后，无逗号；although表让步) ·Although he is young,he knows a lot about history.(-=He is young,but he knows.,用although不能 用but) 4.原因状语从句(because/since) 1.连接词用法 ·because(因为，回答why提问，语气最强，可位于句首/句中) ·since(既然，表已知原因，语气较弱，常位于句首) 2.用法区别 ·because引导从句可单独成句回答why:since引导从句多为前提条件，主句表结果 3.例句： ·He didn't go to school because he was ill..(▣答why,because表直接原因) 。Because it was raining,we had to cancel the picnic.(句首表原因，用逗号隔开) ●Since everyone is here,.let's start the meeting.(since表已知前提”大家都到了”，主句表结果) 3 初三外研版（语法） 【专题】 状语从句全解 知识点三：状语从句 1.时间状语从句(when/while/as soon as) 1.基础用法（中考必背)： 。when(当…时，主从动作可同时或先后发生)→例句：I was reading when my mother came in. 。while(当…时，主从动作同时进行，且多为延续性动词)→例句：While she was cooking,Iwas doing my homework. 。as soon as(一…就…，主句常用将来时，从句用一般现在时)→例句：I will call you as soon as I arrive in Beijing 2.特殊考点（中考易错)： ●whn引导时间状语从句时，若主句为过去进行时，从句常用一般过去时表示”这时突然”例 He was walking in the street when it began to rain. ·while引导的从句中，若主从句主语一致且含有be动词，可省略主语和be动词→例句：While (I was)studying,I heard a noise. 2.条件状语从句(if/unless) 1.基础用法（中考核心)： 。f(如果，引导真实条件句，遵循”主将从现”原则)→例句：If it doesn't rain tomorrow,we will go to the zoo. 。unless(除非=if.not,否定条件，”主将从现')一→例句：You will fail the exam unless you study hard.You will fail the exam if you don't study hard. 2.常见误区（中考常考)： ·if引导的条件状语从句中，不可用wil/shall,要用一般现在时代替将来时→错误：Ifhe will come,. I will tell you.正确：If he comes,I will tell you 。unless本身含否定意义，不可与not连用→错误：Unless you don'thuy,you'll be late.正确： Unless you hurry,you'll be late. 3.让步状语从句(though/although) 1.基础用法（中考必背)： ·though/although(虽然，尽管，引导让步状语从句，不可与but连用)→例句：Though he is young,. he knows a lot./Although it rained,we still went out. 2.句式结构（中考拓展)： ·though/although+从句，+主句（主句前可用yet/still,但不可用but)一例句：Although she was tired,yet she kept working 4 初三外研版（语法） 【专题】 状语从句全解 。形容词/副词/名词/动词+as+主语+谓语（倒装结构表让步，=though引导的从句）→例句： Young as he is,he can speak three languages.(Though he is young...) 4.原因状语从句(because/since) 1.基础用法（中考核心)： ·because(因为，语气最强，回答why提问，可与so连用，但不可同时出现在一个句子中)→例 He didn't go to school because he was ill./He was ill,so he didn't go to school. 。since(既然，由于，表已知的、显而易见的原因，语气比because弱)→例句：Since everyone is here,let's start the meeting. 2.易混辨析（中考易错)： ·because不能与so同时使用→错误：Because he is busy,so he can't come.正确：Because he is busy,he can't come.He is busy,so he can't come. ●since引导的从句多置于句首，强调'已知前提”→例句：Since you don't know the word,.you can look it up in the dictionary. 解题小妙招 引导词辨析妙招 主从动作同时行，延续动词while用： 先后紧密一就应，as soon as来引领； 否定条件如果不，unless替代if not:: 时间条件看关系，引导词意要清晰。 考法精析 考法一：引导词辨析 核心：根据主从句动作关系（同时/先后、延续性/非延续性)，选择正确的时间状语从句引导词 真题1（单项选择）： I was doing my homework my mother was cooking dinner. A.when B.while C.as soon as 答案：B解析：主从句均为过去进行时(was doing/was cooking),动作同时进行且均为延续性动词， 用while引导。 真题2（语法填空）： She will send me a message she arrives in Shanghai. 初三外研版（语法） 【专题】 状语从句全解 答案：as soon as解析：，到达上海”与”发消息”为先后紧密衔接的动作，用as soon as表示” 就”，符合主将从现原则。 考法二：引导词辨析与用法匹配 核心：根据主从句动作关系及动词类型，选择合适的状语从句引导词(when/while/as soon as/if/unless/though/although/because/since) 真题1（单项选择)： I was doing my homework my mother was cooking dinner. A.when B.while C.as soon as D.since 答案：B解析：主从句均为过去进行时，强调动作同时进行，且从句动词cooking为延续性动词， 应用while引导时间状语从句。 真题2（语法填空)： You will miss the bus you hurry up. 答案：unless解析：句意”你会错过公交车，除非你快点”，表否定条件”如果不”，应用unless 引导条件状语从句，符合”unless=if.not”的用法。 考法三：状语从句连接词辨析及时态规则综合应用 核心：结合语境区分不同类型状语从句的连接词(when/while/as soon as/if/unless/though/although/because/since),并正确运用时态规则（如while的进行时、as soon as和if/unless的主将从现) 真题1（单项选择)： it was raining heavily,he still went to school on foot. A.Because B.Though C.If D.When 答案：B解析：句意为”尽管雨下得很大，他仍然步行上学”，前后为让步关系，应用though/although 引导让步状语从句，且不能与but连用，此处符合语境的是Though。 真题2（语法填空)： (call)you as soon as I (arrive)at the station tomorrow. 答案：will call arrive解析：as soon as引导时间状语从句，遵循'主将从现”原则，主句用一般将来 时will call,从句用一般现在时arrive表将来。 真题演练 演练一：单项选择（共10题） 1.I was reading a book the doorbell rang. 6 初三外研版（语法） 【专题】 状语从句全解 A when B while C as soon as D since 2. she is young,she knows a lot about history. AIf B Unless C Though D Because 3.You will pass the exam you study hard A if Bunless Cthough D since 4.He didn't go to school he had a bad cold. A when B because Cunless Dwhile 5. everyone is ready,let's start the meeting. A Because B Since C Though DIf 6.I will call you I arrive in London. A when B while C as soon as Dunless it was raining heavily,we still walked to the park. A Because B Though CIf D As soon as 8.You won't finish the work on time you ask for help A if B unless Cwhen D since 9.My father was watching TV my mother was cooking. A when B while C as soon as Dbecause 10 you are free tomorrow,why not go shopping with me? A Because B Though CIf D Since 演练二：填空（共10题） 1.I was doing my homework my brother was listening to music. 2.She will tell me the news she gets it. it rains tomorrow,we will cancel the picnic. 4.He didn't join us he was too busy. 5.You will fail the test you study harder 6. she is only five years old,she can speak English well. 7.I will go to bed I finish my homework. everyone has arrived,let's begin the class. 9.They were playing basketball the bell rang. 10.You can borrow my book you promise to return it on time. 演练三：语法填空 > 初三外研版（语法） 【专题】 状语从句全解 Tom is a student who loves reading.One day,he was reading a storybook 1 his friend Mike came to his house."Let's go to the park,"Mike said.Tom agreed,but he wanted to finish the chapter first.He told Mike,"I will go with you 2I finish this page." When they got to the park,it started to rain."We have to go home 3 the rain gets heavier,"Mike said.But Tom wanted to stay,"4 it's raining,the park is still beautiful." On their way home,Tom asked,"5 do you like coming to the park?Mike smiled,"Because I can play football here.6you don't like sports,you can read under the tree." When they arrived home,Tom's mother was cooking."Dinner will be ready 7 _ten minutes,,” she said.Tom and Mike helped set the table.8they were eating,Tom's father told them a joke. Everyone laughed loudly. Tom thought,"9 I have many books to read,spending time with friends is also important."He decided to balance reading and playing.10then on,he often invites friends to his house to read and play together. 答案区 演练-：1.A2.C3.A4.B5B6.C7B8B9B10D 1.while 2.as soon as 3.If 4.because 5.unless 6.Though/Although 7.when/as soon as 8.Since 9.when 10.if 1.when 2.as soon as 3.before 4.Though/Although 5.Why 6.If 7.in 8.While 9.Though/Although 10.From 8