1.不定式结构-2025-2026学年英语期末语法复习九年级上册（仁爱版）

期末语法复习 9年级·仁爱版·wh-+不定式结构 一、wh-+不定式结构核心用法详解 考点一：w-疑问词后接不定式的构成及基本含义 规则：wh-疑问词（what,which,how,where,when等)后接动词不定式构成”wh-+不定 式”结构，在句中可作主语、宾语、表语等，含义上相当于一个名词性从句，表示”做 什么哪一个/如何做/在哪里做/何时做等。 例题1（选择，仁爱九上期末模拟题）： I don't know_next.Could you help me? A)what to do B)how to do C)what doing D)how doing 答案：A 例题2（填空）： Please tell me_(when/where)to meet you tomorrow. 答案：where 考点二：作宾语的用法 规则：wh-+不定式”结构常作及物动词（如know,decide,leam,forget,remember,.wonder 等)或介词的宾语。 例题1（语法填空）： She hasn't decided which dress_(buy)for the party. 答案：to buy 例题2（选择）： He is thinking about to solve this problem. A)how B)what C)why D)who 答案：A 考点三：作主语的用法 规则：wh-+不定式”结构作主语时，谓语动词常用单数形式，可位于句首，也可用t 作形式主语置于句首，而将真正的主语(wh-+不定式结构)放在句末。 例题1（句型转换）： To learn how to use a computer is important.(用it作形式主语改写) It is important use a computer 答案：to learn how to 例题2（语法填空）： (what/where)to go on vacation hasn't been discussed yet. 答案：Where 考点四：与”疑问词+陈述句”的转换 规则：”w-+不定式”结构在句中作宾语时，可转换为相应的宾语从句（疑问词+陈述 句语序)。 例题（句型转换）： He showed me how to make a cake.(改为含宾语从句的复合句) He showed me how make a cake 答案：Ican 考点五：逻辑主语的使用 规则：当wh-+不定式”结构有明确的逻辑主语时，常用fo+名词/代词宾格+wh-+不 定式”的形式 例题（选择）： It's necessary_us_how to protect ourselves. A)for,learning B)of,to learn C)for;to learn D)of,learning 答案：C 二、考点综合训练 (一)单项选择 1.She doesn't know_to choose for her mother's birthday. A)what B)how C)where D)when 2.Could you tell me to get to the nearest hospital? A)what B)how C)which D)who 3.It's important for us how to communicate with others. A)learn B)learning C)to learn D)learned 4.He hasn't decided to go on a trip this summer A)where B)what C)why D)how 5.I wonderto start the project. A)when B)what C)which D)who 6.They are discussing_to solve the environmental problem. A)what B)how C)where D)when 7.It's necessary him to drive a car. A)for,learning B)of,to learn C)for;to learn D)of,learning 8.She showed me_to make a paper boat. A)what B)how C)where D)when (二)语法填空 1.He forgot_(how/what)to do next. 2.(where/when)to meet is not decided yet. 3.It's easy for them(learn)how to use the app. 4.She asked me(which/what)book to buy 5.(how/what)to improve English is a common question. 6.He taught me(when/where)to find the best restaurants (三)句型转换 1.To know what to do is helpful.(用it作形式主语改写) It is helpful do 2.She told me how to solve the problem.(改为含宾语从句的复合句) She told me how _solve the problem. 3.Where to go is still a mystery.(改为含主语从句的复合句) is still a mystery. 4.It's important for us to learn how to swim.(改为含主语从句的复合句) how to swim is important for us. 5.He explained to me which way to take.(改为含宾语从句的复合句) He explained to me which way_take. (四)篇章填空 Planning a trip can be exciting but sometimes confusing.First,you need to decide 1.-to go. Maybe you like beaches,so you can choose a place with beautiful coasts.Next,think about 2.-to go.Summer is a good time for beach trips,but it might be crowded.Then,you have to plan 3.-to get there.Taking a plane is fast,but driving could be more flexible.It's also important for you 4.-(learn)how to book hotels online to save money.Finally,discuss with your family 5.-to pack.Don't forget essential items like sunscreen and comfortable shoes. 6._to make the trip enjoyable depends on good planning! (五)参考答案与解析 1.单项选择答案：1.A2.B3.C4.A5.A6.B7.C8.B 2.语法填空答案： 1.what 2.When 3.to learn 4.which 5.How 6.where 3.句型转换答案： 1.to know what to 2.I can 3.Where we should go 4.To learn 5.I should 4.篇章填空答案： 1.where 2.when 3.how 4.to learn 5.what 6.How 英语语法复习手册·9年级·仁爱版·h+不定式结构