不定式做目的状语-2025-2026学年高中英语必修三语法知识点全解（冀教版）

高中冀教版 【语法专版】 必修3知识点全解 语法专版 【专题】不定式做目的状语 语法专项突破 考频分析 冀教版必修3中，不定式做目的状语是重要语法点，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)、完形填空(2-3题)、语法填空(1-2题)、书面表达（关键运用，影响 句子逻辑与表达效果)。在语境理解类题目中，不定式表示目的的用法及与其他状语的区分往往是 解题关键。 考查内容 。基本结构识别：不定式符号o加动词原形(tod0)作目的状语的基本构成，与不定式作其他成分 (如宾语、定语)的形式区分 。语境逻辑判断：在具体语境中通过”为了，以便”等语义线索识别不定式表目的的功能，与其他表 目的结构（如in order to、so as to)的替换与差异 。句式转换应用：陈述句中不定式作目的状语的正常语序，与置于句首时的强调用法及标点规则（逗 号分隔)，被动语态中不定式的正确表达 知识点一：不定式作目的状语 1.基本结构(to+动词原形表目的) l.位于句首：To improve his English,he practices speaking every day..(为了提高英语，他每天练习口语) 2.位于句末：She studies hard to get good grades.(她努力学习是为了取得好成绩) 2.逻辑关系（不定式动作是主句动作的目的) 1.隐含”为了”含义：They started early to catch the first bus.(他们早早出发是为了赶上首班车) 2.可转换为in order to/so as to:He saved money in order to buy a new bike..(他存钱是为了买辆新自行 车) 3.否定形式（在to前加not) 1 高中冀教版 【语法专版】 必修3知识点全解 1.例句：He left quietly not to wake the baby.(他悄悄离开以免吵醒婴儿) 2.扩展：She decided not to go out to finish her report.(她决定不出去，为了完成报告) 4.特殊用法（目的状语置于句首时的逗号分隔) 1.句首目的状语需用逗号隔开：To pass the exam,we need to review carefully..(为了通过考试，我们需 要认真复习) 2.句末目的状语无需逗号：We bought some fruits to make a salad.(我们买了些水果做沙拉) 知识点二：不定式作目的状语 1.基本结构与功能 1.位于句末(（常用) 结构：主句+to do sth. 例句： -She studies hard to pass the exam.(她努力学习是为了通过考试。) -They went to the supermarket to buy some food.(他们去超市是为了买些食物。) 2.位于句首（强调目的，后用逗号隔开） 结构：To do sth.,主句 例句： -To improve his English,he practices speaking every day..(为了提高英语，他每天练习口语。) -To catch the early bus,she got up at6a.m.(为了赶上早班车，她早上6点起床。) 2.否定形式 1.结构：主句+not to do sth./Not to do sth,主句. 例句： -He left quietly not to wake his parents.(他安静离开是为了不吵醒父母。) -Not to make mistakes,you should check your work carefully..（为了不犯错，你应该仔细检查作业。) 3.”in order to”与so as to”的替换 1.in order to例句： -She saves money in order to buy a new bike.（她存钱是为了买一辆新自行车。) -In order to finish the task on time,we worked overtime..(为了按时完成任务，我们加班了。) 2.s0asto例句： -He ran fast so as to catch up with his friends..(他跑得很快是为了追上朋友们。) -They lowered their voices so as not to disturb others.(他们压低声音是为了不打扰别人。) 4.逻辑主语一致原则 2 高中冀教版 【语法专版】 必修3知识点全解 1.错误例句：To learn English well,.a dictionary is needed.(逻辑主语不一致，应为”人需要字典”) 2.正确例句：To learn English well,.we need a dictionary.（为了学好英语，我们需要一本字典。) 5.省略”to”的特殊情况 1.对比： -Why not go there by bus'?(为什么不坐公交去那里？)一非目的状语，省略to -He hurried to the station to catch the train.(他匆忙去车站是为了赶火车。)一目的状语，保留to 知识点三：不定式作目的状语 1.基础用法（表目的) 1.例句：She went to the library to borrow books.(她去图书馆借书。) 2.例句：He studies hard to pass the exam.(他努力学习以通过考试。) 2.常见句式结构（中考必背） 1.”in order to do”(为了做，可置于句首或句中) 例句：In order to catch the early bus,.he got up at6a.m.（为了赶上早班车，他早上6点起床。) 2.”so as to do”（为了做，仅置于句中) 例句：We started early so as to arrive on time.(我们早点出发是为了准时到达。) 3.否定形式（中考易错） 1.例句：He left quietly not to wake the baby.(他安静离开以免吵醒婴儿。) 2.例句：She studies hard not to fail the test.(她努力学习以免考试不及格。) 4.逻辑主语（进阶理解） 1.例句：It's important for us to protect the environment..(对我们来说保护环境很重要。) 2.例句：There is a lot of work for her to finish today..(今天有很多工作要她完成。) 解题小妙招 目的状语不定式，to加原形是基础： 句首句末皆可放，句首0字要大写： 否定形式须牢记，not放在to前面： 目的结果要区分，逗号oly表结果： 3 高中冀教版 【语法专版】 必修3知识点全解 强调目的有两种，in order to和so as to: so asto不句首，in order to放句首： for加名词也可以，代替不定式表目的： 逻辑主语要一致，主动被动需分明。 考法精析 考法一：不定式作目的状语的结构与否定形式 核心：掌握不定式作目的状语的基本结构(to+动词原形、句首/句末位置及否定形式(not to do) 真题1（语法填空）： -(improve)her writing skills,Lily keeps a diary every day. 答案：To improve 解析：句首表目的需用不定式结构To+动词原形，首字母大写，故填To improve。. 真题2（单项选择）： He walked quietlywake the sleeping baby. A.to not B.not to C.don't to D.not 答案：B 解析：不定式作目的状语的否定形式为not to do,需将not置于to前，故填not to。 考法二：不定式作目的状语与结果状语的区分 核心：根据语境及标点符号（逗号），判断不定式在句中表目的还是结果，尤其注意'oyto”结构 的用法 真题1（语法填空)： She hurried to the airport,only(find)the flight had already taken off. 答案：to find 解析：句中逗号后接”only to do”结构，表意外结果，符合她匆忙赶到机场，结果却发现航班已起 飞”的语境，故填to find。 真题2（完形填空）： He stayed up late finish the project before the deadline. A.to B.only to C.for D.so as 答案：A 解析：句末无逗号，且表”为了在截止日期前完成项目”的目的，用不定式基本结构todo:B项'only to”表结果需用逗号隔开，C项for”后需接名词，D项's0s”后需加to,均不符合，故选A。 4 高中冀教版 【语法专版】 必修3知识点全解 考法三：不定式作目的状语的综合运用与区分 核心：掌握不定式作目的状语的基本结构、否定形式、逻辑主语一致原则，以及与不定式作宾语、 现在分词作伴随状语的区分 真题1（单项选择)： late for class,he got up very early this morning. A.To not be B.Not to be C.Being not D.Not being 答案：B 解析：此处需用不定式作目的状语，表示”为了不迟到'，其否定形式为'not to do”,be late for为固 定搭配，所以应填Not to be。. 真题2（语法填空)： She went to the bookstore_(buy)some storybooks for her little sister. 答案：to buy 解析：主句主语”She”与不定式动作buy'的逻辑关系一致，此处表示去书店的目的，应用不定式作 目的状语，故填to buy.。 真题演练 演练一：单项选择试题（共10题) 1.We need to collect more evidence-prove our innocence. A.in order to B.so as to C.for D.so that 2.avoid making mistakes,he checked his report three times. A.So as to B.In order to C.For D.So that 3.She turned down the music_disturb her roommate. A.not to B.to not C.not D.don't to 4.They started early-they could catch the morning train. A.so as to B.in order C.in order that D.for 5.This dictionary is designedhelp students learn new words. A.to B.for C.so as D.in order 6.He ran all the way to the station,miss the last bus. A.so as to not B.in order not to C.not to D.so that not 7.improve his health,he takes a walk every evening. A.For B.To C.So as to D.In order 8.The teacher raised her voice_the students at the back could hear clearly. A.to B.so that C.so as to D.in order to 高中冀教版 【语法专版】 必修3知识点全解 9.You should study hardpass the final exam. A.so as to B.in order that C.for D.so 10.solve the problem,we need to analyze it from different angles. A.So as to B.For C.In order to D.So that 演练二：填空试题（共10题） 1.She went to the supermarket_(buy)some vegetables for dinner. 2.-(finish)the task on time,they worked overtime yesterday. 3.He closed the door quietly(not wake)his sleeping parents 4.We need to save money(buy)a new car next year. 5.The team practiced day and night(win)the championship. 6.She studies English every morning(improve)her pronunciation. 7.They walked slowly(enjoy)the beautiful scenery along the road. 8.-(prepare)for the interview,he researched the company carefully. 9.He lowered his head(avoid)meeting her eyes. 10.We should protect the environment_(make)the earth a better place. 演练三：语法填空试题（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。 Nowadays,more and more students choose to study abroad.The main reason is 1.(experience)different cultures and improve their language skills.To achieve this goal,they often start preparing years in advance For example,they learn the local language 2.(communicate)with native speakers easily. 3.(adapt)to the new environment quickly,some students join orientation programs.These programs help them understand local customs and make friends.However,studying abroad can be challenging.Many students feel homesick,so they learn to cook traditional food 4.(reduce)loneliness. To succeed academically,students need to manage their time well.They often create schedules 5.(balance)study and social activities.Some even form study groups 6.-(share)knowledge and solve problems together. 7.(save)money,many students choose to live with roommates instead of alone.They also take part-time jobs 8.(cover)daily expenses.Despite the difficulties,most students believe studying abroad is valuable. They return home 9.-(apply)what they've learned and contribute to society. 6 高中冀教版 【语法专版】 必修3知识点全解 In the end,the efforts they put in are not in vain.They gain independence,broaden their horizons,and develop skills 10.-(benefit)their future careers. 答案区 演练-：1.A2.B3.A4.C5.A6B7B8B9.A10.C 演练二：1.to buy2.To finish3 not to wake4.to buy5.to win6.to improve7.to enjoy 8.To prepare 9.to avoid 10.to make 演练三：1.to experience2.to communicate3.To adapt4.to red1ce5.to balance6.to share 7.To save 8.to cover 9.to apply 10.to benefit 7