Unit 4 My Tidy Bag单元知识总结及重点易错（专项训练）-2026-2027学年粤人版英语三年级上册

**基本信息** 聚焦三年级上册Unit 4核心知识，以十大易错考点为纲，通过基础-提升-拓展三级训练体系，系统强化语言能力与思维品质。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |十大考点|每考点9题（基础/提升/拓展各3）|涵盖句型结构（What's in...?/Is...?）、语法规则（There be就近原则、祈使句用法）、词汇辨析（状态形容词/方位介词）|从核心词汇（物品/状态词）到短语、句型，再到语法综合运用，形成"词汇-句型-语法-语篇"递进逻辑|

粤人版三年级上册Unit 4 My Tidy Bag 单元知识总结及重点易错专项训练 ■ ■ ■ ■ ■ ■ ■ 说明：本练习紧扣最新教材精选 10 个重点易错考点，每个考点含基础题×3、提升题×3、拓展题×3，共 90 题。 一、单元核心知识总结 ■ 重点单词（物品与状态类，含中文释义） • 学习用品：bag（书包）、pencil（铅笔）、pen（钢笔）、ruler（尺子）、eraser（橡皮）、crayon（蜡笔）、book（书）、notebook（笔记本）、sharpener（卷笔刀）、glue（胶水） • 状态形容词：tidy（整洁的）、messy（凌乱的）、clean（干净的）、dirty（脏的）、neat（整齐的）、full（满的）、empty（空的） • 动作动词：put（放）、take（拿/取）、keep（保持）、clean（打扫）、pick（捡起）、use（使用）、find（找到）、have（有） • 其他：desk（书桌）、table（桌子）、box（盒子）、in（在……里面）、on（在……上面）、under（在……下面）、my（我的）、your（你的） ■ 重点短语（含中文释义） • my tidy bag（我整洁的书包）、a messy desk（一张凌乱的书桌）、put...in...（把……放进……）、take out（拿出）、keep tidy（保持整洁）、clean the desk（打扫书桌）、pick up（捡起）、put away（收好）、on the table（在桌子上）、under the chair（在椅子下）、in the box（在盒子里）、use your pencil（用你的铅笔）、have a look（看一看） ■ 重点句型（含中文释义） • What's in your bag? —A pencil, a ruler and a book.（你的书包里有什么？） • Is your desk tidy? —Yes, it is./No, it isn't.（你的书桌整洁吗？） • Put your pencil in the pencil case.（把你的铅笔放进铅笔盒里。） • Take out your book, please.（请拿出你的书。） • Keep your desk tidy.（保持你的书桌整洁。） • Pick up the eraser.（捡起橡皮。） • Where is my ruler? —It's on the table.（我的尺子在哪里？） • Let me have a look.（让我看一看。） ■ 重点语法（含中文释义） • ① What's in...? 询问某处有什么：What's in your bag? → A pencil and a book. • ② Is...tidy/clean? Yes/No 一般疑问句：Is your desk tidy? → Yes, it is. • ③ 祈使句（肯定/否定）：Put...（肯定）/ Don't put...（否定），动词用原形。 • ④ 方位介词 in/on/under 辨析：in the bag（在包里）/ on the desk（在桌上）/ under the chair（在椅下）。 • ⑤ Where is...? → It's + 方位介词：Where is my ruler? → It's on the table. • ⑥ have/has 表示拥有：I have... / He has...（三单用has）。 • ⑦ Let me + 动词原形：Let me help you.（让我帮你。） 二、十大重点易错考点专项练习（选择题） 考点一：What's in your bag? —A pencil, a ruler... 询问某处有什么（What's = What is） 基础题：（选择题） ◇（ ）1. —What's in your bag, Jam? —_________ a pencil and a book. A. It is B. There is C. This is ◇（ ）2. —What's in Lily's desk? —_________ some crayons. A. It is B. There are C. This is ◇（ ）3. —What's in Zhang Hao's box? —_________ an eraser. A. It is B. There is C. This is 提升题：（选择题） ▷（ ）1. —What's in Bella's tidy bag? —_________ a ruler, a pen and a crayon. A. There is B. There are C. It is ▷（ ）2. —What's in Chen Wei's messy desk? —_________ many books and pencils. A. There is B. There are C. It is ▷（ ）3. —What's in Olivia's pencil case? —_________ two pens. A. There is B. There are C. It is 拓展题：（选择题） ★（ ）1. —What's in Zhou Kai's schoolbag in Qingdao? —_________ a notebook and some crayons. A. There is B. There are C. It is ★（ ）2. —What's in your desk at school in Wuhan? —_________ some books and a ruler. A. There is B. There are C. It is ★（ ）3. —What's in Jam's tidy bag in Xiamen? —_________ a glue and a sharpener. A. There is B. There are C. It is 【考点1参考答案与解析】 基础题：1.B 2.B 3.B 提升题：1.A 2.B 3.B 拓展题：1.A 2.B 3.A 【详细解析】 基础题： 1. B — What's in...? 回答用 There is + 单数名词。 2. B — 回答用 There are + 复数名词（some crayons）。 3. B — 回答用 There is + 单数名词（an eraser）。 提升题： 1. A — There is + 多个物品（就近原则，a ruler靠近is）。 2. B — many books是复数，用There are。 3. B — two pens是复数，用There are。 拓展题： 1. A — a notebook就近，用There is。 2. B — some books是复数，用There are。 3. A — a glue就近，用There is。 考点二：Is your desk tidy? Yes, it is./No, it isn't. 一般疑问句与回答 基础题：（选择题） ◇（ ）1. —Is your bag tidy, Bella? —Yes, _________ is. A. it B. he C. she ◇（ ）2. —Is Chen Wei's desk messy? —No, _________ isn't. A. it B. he C. she ◇（ ）3. —Is Lily's room clean? —Yes, _________ is. A. it B. he C. she 提升题：（选择题） ▷（ ）1. —Is Zhang Hao's pencil case neat? —No, _________ isn't. It's messy. A. it B. he C. she ▷（ ）2. —Is Olivia's notebook on the desk? —Yes, _________ is. A. it B. he C. she ▷（ ）3. —Is Jam's eraser in the box? —No, _________ isn't. A. it B. he C. she 拓展题：（选择题） ★（ ）1. —Is Bella's bag full of books in Jinan? —Yes, _________ is. A. it B. he C. she ★（ ）2. —Is Zhou Kai's desk empty in Kunming? —No, _________ isn't. A. it B. he C. she ★（ ）3. —Is your classroom tidy in Qingdao? —Yes, _________ is. A. it B. he C. she 【考点2参考答案与解析】 基础题：1.A 2.A 3.A 提升题：1.A 2.A 3.A 拓展题：1.A 2.A 3.A 【详细解析】 基础题： 1. A — 用it指代your bag（单数物品）。 2. A — 用it指代Chen Wei's desk（单数）。 3. A — 用it指代Lily's room（单数）。 提升题： 1. A — 用it指代pencil case（单数）。 2. A — 用it指代notebook（单数）。 3. A — 用it指代eraser（单数）。 拓展题： 1. A — 用it指代bag（单数）。 2. A — 用it指代desk（单数）。 3. A — 用it指代classroom（单数）。 考点三：祈使句 Put.../Take out.../Pick up...（肯定）与 Don't...（否定），动词用原形 基础题：（选择题） ◇（ ）1. _________ your pencil in the pencil case, Jam. A. Put B. Puts C. Putting ◇（ ）2. _________ out your book, please, Lily. A. Take B. Takes C. Taking ◇（ ）3. _________ up the eraser, Bella. It's on the floor. A. Pick B. Picks C. Picking 提升题：（选择题） ▷（ ）1. _________ put your bag on the desk, Chen Wei. A. Not B. Don't C. Doesn't ▷（ ）2. _________ your desk tidy, Olivia. It's messy. A. Keep B. Keeps C. Keeping ▷（ ）3. _________ away your crayons after class, Zhang Hao. A. Put B. Puts C. Putting 拓展题：（选择题） ★（ ）1. _________ make your desk messy in class, Zhou Kai. A. Not B. Don't C. Doesn't ★（ ）2. _________ me have a look at your tidy bag, Bella. A. Let B. Lets C. Letting ★（ ）3. _________ the glue on the table, Jam. Don't drop it. A. Put B. Puts C. Putting 【考点3参考答案与解析】 基础题：1.A 2.A 3.A 提升题：1.B 2.A 3.A 拓展题：1.B 2.A 3.A 【详细解析】 基础题： 1. A — 祈使句肯定用动词原形Put。 2. A — 祈使句肯定用动词原形Take。 3. A — 祈使句肯定用动词原形Pick。 提升题： 1. B — 祈使句否定用Don't + 动词原形。 2. A — 祈使句肯定用动词原形Keep。 3. A — 祈使句肯定用动词原形Put。 拓展题： 1. B — 祈使句否定用Don't + 动词原形。 2. A — Let me + 动词原形have。 3. A — 祈使句肯定用动词原形Put。 考点四：方位介词 in/on/under 辨析（in在……里 / on在……上 / under在……下） 基础题：（选择题） ◇（ ）1. The pencil is _________ the pencil case. A. on B. in C. under ◇（ ）2. The book is _________ the desk. A. on B. in C. under ◇（ ）3. The eraser is _________ the chair. I can't see it. A. on B. in C. under 提升题：（选择题） ▷（ ）1. —Where is Lily's ruler? —It's _________ the table. A. on B. in C. under ▷（ ）2. —Where is Chen Wei's bag? —It's _________ the desk, not on it. A. on B. in C. under ▷（ ）3. —Where is Bella's crayon? —It's _________ her pencil case. A. on B. in C. under 拓展题：（选择题） ★（ ）1. —Where is Zhang Hao's notebook in Wuhan? —It's _________ the desk. A. on B. in C. under ★（ ）2. —Where is Olivia's sharpener in Xiamen? —It's _________ the box. A. on B. in C. under ★（ ）3. —Where is Jam's pen in Kunming? —It's _________ the chair. A. on B. in C. under 【考点4参考答案与解析】 基础题：1.B 2.A 3.C 提升题：1.A 2.C 3.B 拓展题：1.A 2.B 3.C 【详细解析】 基础题： 1. B — 铅笔在铅笔盒里面，用in。 2. A — 书在桌子上面，用on。 3. C — 橡皮在椅子下面，用under。 提升题： 1. A — 尺子在桌子上面，用on。 2. C — 书包在桌子下面（not on it提示），用under。 3. B — 蜡笔在铅笔盒里面，用in。 拓展题： 1. A — 笔记本在桌子上面，用on。 2. B — 卷笔刀在盒子里面，用in。 3. C — 钢笔在椅子下面，用under。 考点五：Where is...? —It's + 方位介词（on/in/under）询问与回答位置 基础题：（选择题） ◇（ ）1. —Where is my ruler, Mum? —It's _________ the table. A. on B. at C. to ◇（ ）2. —Where is your bag, Lily? —It's _________ the desk. A. under B. at C. to ◇（ ）3. —Where is his pencil case? —It's _________ his bag. A. in B. at C. to 提升题：（选择题） ▷（ ）1. —Where _________ Bella's eraser? —It's on the floor. A. is B. are C. am ▷（ ）2. —Where _________ Chen Wei's crayons? —They're in the box. A. is B. are C. am ▷（ ）3. —Where is Olivia's book? —_________ under the desk. A. It's B. They're C. He's 拓展题：（选择题） ★（ ）1. —Where _________ Zhang Hao's tidy bag in Qingdao? —It's on the chair. A. is B. are C. am ★（ ）2. —Where are Jam's crayons in Wuhan? —_________ in the pencil case. A. It's B. They're C. He's ★（ ）3. —Where is Bella's notebook in Jinan? —_________ on the desk. A. It's B. They're C. He's 【考点5参考答案与解析】 基础题：1.A 2.A 3.A 提升题：1.A 2.B 3.A 拓展题：1.A 2.B 3.A 【详细解析】 基础题： 1. A — on the table 在桌子上。 2. A — under the desk 在桌子下面。 3. A — in his bag 在他包里。 提升题： 1. A — Bella's eraser单数，用is。 2. B — crayons复数，用are。 3. A — It's = It is，指代eraser。 拓展题： 1. A — bag单数，用is。 2. B — crayons复数，用They're。 3. A — notebook单数，用It's。 考点六：have/has 表示拥有（I/you/they + have, he/she + has） 基础题：（选择题） ◇（ ）1. I _________ a tidy bag, Miss White. A. have B. has C. am ◇（ ）2. Jam _________ a new pencil case. It's blue. A. have B. has C. is ◇（ ）3. They _________ many crayons in their desks. A. have B. has C. are 提升题：（选择题） ▷（ ）1. —Does Lily have a ruler? —Yes, she _________. A. have B. has C. does ▷（ ）2. Chen Wei and Zhang Hao _________ clean desks in the classroom. A. have B. has C. are ▷（ ）3. Bella _________ a full bag. There are many books in it. A. have B. has C. is 拓展题：（选择题） ★（ ）1. —Does Olivia have a sharpener in Xiamen? —Yes, she _________. A. have B. has C. does ★（ ）2. Zhou Kai and Jam _________ messy desks today. They need to clean them. A. have B. has C. are ★（ ）3. —Does Bella have an eraser in Kunming? —No, she _________. A. don't B. doesn't C. isn't 【考点6参考答案与解析】 基础题：1.A 2.B 3.A 提升题：1.C 2.A 3.B 拓展题：1.C 2.A 3.B 【详细解析】 基础题： 1. A — I用have。 2. B — Jam是三单，用has。 3. A — They用have。 提升题： 1. C — Does提问用does回答。 2. A — 复数主语用have。 3. B — Bella是三单，用has。 拓展题： 1. C — Does提问用does回答。 2. A — 复数主语用have。 3. B — doesn't = does not，三单否定。 考点七：tidy/messy/clean/dirty 状态形容词辨析 基础题：（选择题） ◇（ ）1. Your desk is very _________, Jam. Please clean it. A. tidy B. messy C. clean ◇（ ）2. Look! Lily's bag is so _________. Everything is in order. A. messy B. tidy C. dirty ◇（ ）3. Please wash your hands. They are _________. A. clean B. tidy C. dirty 提升题：（选择题） ▷（ ）1. Chen Wei's desk is _________. His books are everywhere. A. tidy B. neat C. messy ▷（ ）2. Bella keeps her room _________. She puts everything in the right place. A. messy B. tidy C. dirty ▷（ ）3. After cleaning, the classroom looks _________. A. messy B. clean C. dirty 拓展题：（选择题） ★（ ）1. Olivia's pencil case is _________. She can find everything quickly in Wuhan. A. messy B. tidy C. dirty ★（ ）2. Zhang Hao's shoes are _________. He needs to wash them in Xiamen. A. clean B. tidy C. dirty ★（ ）3. Zhou Kai's bag is so _________ that he can't find his ruler in Kunming. A. tidy B. messy C. clean 【考点7参考答案与解析】 基础题：1.B 2.B 3.C 提升题：1.C 2.B 3.B 拓展题：1.B 2.C 3.B 【详细解析】 基础题： 1. B — 需要打扫说明是messy（凌乱的）。 2. B — Everything is in order说明是tidy（整洁的）。 3. C — 需要洗手说明是dirty（脏的）。 提升题： 1. C — books everywhere说明是messy。 2. B — 东西放对地方说明是tidy。 3. B — 打扫后看起来是clean（干净的）。 拓展题： 1. B — 能快速找到东西说明是tidy。 2. C — 需要洗说明是dirty。 3. B — 找不到尺子说明是messy。 考点八：Let me + 动词原形（Let me help/see/have a look） 基础题：（选择题） ◇（ ）1. _________ me help you clean the desk, Bella. A. Let B. Lets C. Letting ◇（ ）2. _________ me have a look at your tidy bag, Jam. A. Let B. Lets C. Letting ◇（ ）3. _________ me put the books in the box, teacher. A. Let B. Lets C. Letting 提升题：（选择题） ▷（ ）1. —Can you help me? —Yes. _________ me help you, Lily. A. Let B. Lets C. Letting ▷（ ）2. _________ me see your new crayons, Chen Wei. A. Let B. Lets C. Letting ▷（ ）3. —I can't find my eraser. —_________ me help you look for it, Zhang Hao. A. Let B. Lets C. Letting 拓展题：（选择题） ★（ ）1. —My desk is so messy in Qingdao. —Don't worry. _________ me help you tidy it, Olivia. A. Let B. Lets C. Letting ★（ ）2. _________ me pick up the ruler for you, Bella. It's on the floor in Wuhan. A. Let B. Lets C. Letting ★（ ）3. —Can I have a look at your bag in Jinan? —Of course. _________ me show you, Zhou Kai. A. Let B. Lets C. Letting 【考点8参考答案与解析】 基础题：1.A 2.A 3.A 提升题：1.A 2.A 3.A 拓展题：1.A 2.A 3.A 【详细解析】 基础题： 1. A — Let me + 动词原形help。 2. A — Let me + 动词原形have。 3. A — Let me + 动词原形put。 提升题： 1. A — Let me + 动词原形help。 2. A — Let me + 动词原形see。 3. A — Let me + 动词原形help。 拓展题： 1. A — Let me + 动词原形help。 2. A — Let me + 动词原形pick。 3. A — Let me + 动词原形show。 考点九：物主代词 my/your/his/her + 名词（my bag/your desk/his pencil/her book） 基础题：（选择题） ◇（ ）1. —Is this _________ bag, Jam? —Yes, it's my bag. A. you B. your C. yours ◇（ ）2. Lily can't find _________ ruler. It's not on the desk. A. she B. her C. hers ◇（ ）3. Chen Wei puts _________ books in the desk every day. A. he B. his C. him 提升题：（选择题） ▷（ ）1. —Is this Bella's crayon? —No, it's not _________. It's mine. A. she B. her C. hers ▷（ ）2. Zhang Hao helps _________ mum tidy the desk in the evening. A. he B. his C. him ▷（ ）3. Olivia likes to keep _________ bedroom tidy in Xiamen. A. she B. her C. hers 拓展题：（选择题） ★（ ）1. —Are these Zhou Kai's pencils in Wuhan? —Yes, they are _________. A. he B. his C. him ★（ ）2. Jam shares _________ crayons with Bella in the art class. A. he B. his C. him ★（ ）3. Lily and Olivia tidy _________ desks together in Jinan. A. they B. them C. their 【考点9参考答案与解析】 基础题：1.B 2.B 3.B 提升题：1.C 2.B 3.B 拓展题：1.B 2.B 3.C 【详细解析】 基础题： 1. B — your是形容词性物主代词，修饰bag。 2. B — her是形容词性物主代词，修饰ruler。 3. B — his是形容词性物主代词，修饰books。 提升题： 1. C — hers是名词性物主代词（=her crayon）。 2. B — his是形容词性物主代词，修饰mum。 3. B — her是形容词性物主代词，修饰bedroom。 拓展题： 1. B — his是名词性物主代词（=his pencils）。 2. B — his是形容词性物主代词，修饰crayons。 3. C — their是形容词性物主代词，修饰desks。 考点十：综合语篇——描述书包与书桌（What's in.../Is it tidy?/Where is.../Put...in...综合运用） 基础题：（选择题） ◇（ ）1. —What's in your bag, Bella? —There _________ a book and a pencil. A. is B. are C. am ◇（ ）2. —Is your desk tidy today, Jam? —Yes, it _________. I cleaned it. A. isn't B. aren't C. is ◇（ ）3. —Where is your eraser? —It's _________ the pencil case. A. on B. in C. under 提升题：（选择题） ▷（ ）1. Chen Wei has a tidy bag. There _________ many neat books in it. A. is B. are C. am ▷（ ）2. —Does Lily have a clean desk? —Yes, she _________. And it's tidy too. A. have B. has C. does ▷（ ）3. Olivia can't find her ruler. It's not _________ the desk. It's under it. A. on B. in C. at 拓展题：（选择题） ★（ ）1. In Qingdao, Zhang Hao's bag is full. There _________ a notebook, some crayons and a glue. A. is B. are C. am ★（ ）2. Bella and Zhou Kai tidy _________ desks every Friday in Wuhan. Their teacher is happy. A. they B. them C. their ★（ ）3. —Let me _________ a look at your messy desk, Jam. —OK. I'll tidy it now in Xiamen. A. have B. has C. having 【考点10参考答案与解析】 基础题：1.A 2.C 3.B 提升题：1.B 2.C 3.A 拓展题：1.A 2.C 3.A 【详细解析】 基础题： 1. A — a book就近，用There is。 2. C — 肯定回答用Yes, it is. 3. B — in the pencil case 在铅笔盒里。 提升题： 1. B — many books复数，用There are。 2. C — Does提问用does回答。 3. A — on the desk 在桌子上。 拓展题： 1. A — many items复数， 2. C — their是形容词性物主代词，修饰desks。 3. A — Let me have a look固定搭配。 学科网（北京）股份有限公司 $