Unit 3 Parts of the body（期中知识清单）三年级英语上学期（鲁科版五四制·新教材）

该小学英语知识清单系统梳理了三年级上学期Unit 3“身体部位”单元核心内容，涵盖介绍、拥有、询问身体部位及指令观察四大句型考点，搭建了从基础句型结构、关键规则解析到写作应用、综合训练的递进式学习支架。 清单以“考点分类+结构拆解+分层练习”构建知识体系，如考点一通过“句型功能-结构拆解-关键规则”三步解析“This is my...”等句型，标注易混错误（如“two head”的复数误用），培养学生语言能力。写作指引分“思路梳理-结构拆解-核心句型”三步，提供范文与必用句型模板，综合训练含情境纠错、思维探究题（如仿写生活场景句子），提升思维品质。师生可直接用其进行重难点突破、分层练习设计，高效辅助教学与自主学习。

Unit 3 Parts of the body（期中知识清单）三年级英语上学期 （鲁科版五四制·新教材） 知识梳理 知识点拨 【考点一】介绍身体部位句型 【考点二】表达拥有身体部位句型 【考点三】询问身体部位句型 【考点四】指令与观察句型 考点一：介绍身体部位句型（This is my.../ This is the.../ It's a...） 例句：This is my head.（这是我的头。）；This is the nose.（这是鼻子。）；It's a small nose.（它是一个小鼻子。）解析：用于向他人介绍自己或他人的身体部位，适配 “课堂上认识身体部位”“描述自己的身体特征” 等场景。核心是根据 “所属关系” 选择 “my/the”，根据 “大小特征” 添加形容词。 结构拆解： “This is my + 身体部位”：强调 “我的”，后接单数身体部位（如 head/arm）； “This is the + 身体部位”：特指某一身体部位，不强调所属（如介绍图片中的鼻子）； “It's a + 形容词 + 身体部位”：描述身体部位的特征（如大小、形状），形容词需放在 “a” 和身体部位之间。 关键规则： 身体部位为单数时，前面不可加 “two” 等复数数词，如 “This is my two head.”（错误，应改为 “This is my head.”）； 形容词（small/big）需放在不定冠词 “a” 之后，身体部位之前，如 “It's small a nose.”（错误，应改为 “It's a small nose.”）。 【大显身手】 一、单项选择题。 ( )1. —______ is my arm.—Oh, I see! A. This B. These C. It D. They ( )2. This is ______ nose. It's small. A. I B. my C. me D. mine ( )3. —What's this?—______ the eye. A. It's B. This is C. That's D. They're ( )4. It's ______ big mouth. A. a B. an C. the D. / ( )5. This is ______ face. ______ a round face. A. my；It's B. I；It's C. my；This is D. me；It's 考点二：表达拥有身体部位句型（I have...） 例句：I have two eyes.（我有两只眼睛。）；I have a big mouth.（我有一张大嘴。）解析：用于表达自己拥有的身体部位数量或特征，适配 “自我介绍身体特征”“描述动物的身体部位” 等场景。核心是 “数词 + 复数身体部位”“形容词 + 单数身体部位” 的搭配。 结构拆解： 表数量：“I have + 数词（two/three）+ 复数身体部位”，如 “I have two ears.”； 表特征：“I have a + 形容词（big/small）+ 单数身体部位”，如 “I have a small nose.”。 关键规则： 身体部位为复数时（如 eyes/ears），前面需用复数数词（two），不可用 “a”，如 “I have a eyes.”（错误，应改为 “I have two eyes.”）； “have” 表示 “拥有”，主语是第一人称 “I” 时，“have” 用原形，不可加 “s”，如 “I has two hands.”（错误，应改为 “I have two hands.”）。 Don’t cry. Let’s look for him together. 【大显身手】 一、判断题（对打 “√”，错打 “×”） 1.I have two foot.( ) 2.I have a big head.( ) 3.I have three ear.( ) 4.I have two small eyes.( ) 5.I has a long tail.( ) 二、仿写句子（结合单元场景，完成 2 组句子） （1）（描述自己的耳朵）—I have ______! They are small. （2） （描述自己的手）—I have ______! I can write with them.二、仿写句子（结合单元场景，完成 2 组句子） 考点三：询问身体部位句型（What's this? / It's the...） 例句：—What's this?（这是什么？）— It's the eye.（它是眼睛。）解析：用于不确定某一身体部位时进行询问，适配 “课堂上提问老师”“和同学互相考身体部位” 等场景。核心是 “近指用 this，回答用 it's”。 结构拆解： 问句：“What's this?” 用于询问近处的单数身体部位，“this” 不可换成 “that”（that 用于远处）； 答句：“It's the + 身体部位”，用 “it” 指代问句中的 “this”，避免重复，“the” 表特指。 关键规则： 询问复数身体部位时，需用 “What are these?”，回答用 “They are the + 复数身体部位”，如 “What are these? — They are the legs.”； 答句中不可用 “This is...”，需用 “It's...”，如 “What's this? — This is the nose.”（错误，应改为 “It's the nose.”）。 【大显身手】 ( )1. —______ is this?—It's the mouth. A. What B. Who C. How D. Where ( )2. —What's this?—______ the ear. A. This is B. It's C. They're D. That's ( )3. —What ______ these?—They're the feet. A. am B. is C. are D. be ( )4. —What's this?—It's ______ nose. A. a B. the C. an D. my ( )5. —What are ______?—They're the arms. A. this B. that C. these D. it 考点四：指令与观察句型（Look at...） 例句：Look at me!（看我！）；Look at my leg.（看我的腿。）解析：用于吸引他人注意并让其观察身体部位，适配 “课堂上老师指令”“和朋友展示身体部位” 等场景。核心是 “look at + 宾语（me/my + 身体部位）”。 结构拆解： “Look at me”：“me” 是宾格，作 “look at” 的宾语，不可用 “I”（主格），如 “Look at I.”（错误，应改为 “Look at me.”）； “Look at my + 身体部位”：“my” 后接单数或复数身体部位，如 “Look at my hands.”（看我的手）。 关键规则： “look” 是不及物动词，后面接宾语时必须加 “at”，如 “Look my head.”（错误，应改为 “Look at my head.”）； 句末可加感叹号加强语气，如 “Look at my new shoes!”（看我的新鞋！），本单元适配身体部位场景。 【大显身手】 一、选词填空（look /look at /at） 1.______ me! I have two wings. 2.______ ______ my face. It's round. 3.______ the nose. It's small. 4.______! This is my arm. 5.______ ______ his knee. It's big. 二、判断题（对打 “√”，错打 “×”） 1.Look my foot!( ) 2.Look at me!( ) 3.Look at my ears!( ) 4.Look the head!( ) 5.Look at you!( ) 写作指引 一、写作。 请以 “My Body” 为题，写一篇英语短文，介绍自己的身体部位及特征，需包含：至少 3 个身体部位、对应的特征（大小 / 数量）、用所学句型描述；要求：句子通顺，不少于 40 词。 （一）写作指导（分 3 步，可直接套用） 第一步：梳理写作思路（先想 “3 个关键信息”） 关键部分 思考方向（举例） 1. 开头总起 点明主题（介绍自己的身体） 2. 身体部位描述 选 3-4 个身体部位（head/eyes/mouth），说明数量或特征 3. 结尾总结 表达对自己身体的看法（如 I like my body.） 第二步：拆解写作结构（开头 - 中间 - 结尾，每部分 1-2 句） 开头：总起句（This is my body. I want to talk about it.）； 中间：分述身体部位（This is my head. It's big. I have two eyes. They are small. I have a mouth. It's red.）； 结尾：总结句（I like my body. It's cool!）。 第三步：必用核心句型（标注单元来源，确保扣题） 介绍部位：This is my + 身体部位.（Unit 3 Lesson 1） 表达拥有：I have + 数词 / 形容词 + 身体部位.（Unit 3 Lesson 3） 描述特征：It's a + 形容词 + 身体部位.（Unit 3 Lesson 2） （二）范文： My Body This is my body. I want to tell you about it. This is my head. It's not too big. I have two eyes. They are black and bright. I have a small nose. It can smell flowers. I also have a big mouth. I can sing songs with it. I like my body. It helps me do many things! 综合训练 一、单项选择题 ( )1. This is ______ leg. It's long. A. I B. my C. me D. mine ( )2. I have ______ ears. They are small. A. two B. a C. one D. an ( )3. —What's this?—______ the shoulder. A. This is B. It's C. They're D. That's ( )4. ______ at my hand. It's big. A. Look B. See C. Watch D. Read ( )5. It's ______ small toe. A. a B. an C. the D. / ( )6. I have ______ long tail. A. a B. two C. an D. / ( )7. —What are these?—______ the knees. A. It's B. This is C. They're D. That's ( )8. This is ______ face. ______ a big face. A. I；It's B. my；It's C. me；This is D. mine；That's ( )9. I have ______ hands. I can clap with them. A. one B. a C. two D. an ( )10. —Look at ______ nose!—Wow! It's so big. A. I B. my C. me D. mine 二、根据括号内提示或上下文，补全单词或用所给词的正确形式填空 1.This is ______ (I) head. It's big. 2.I have two ______ (eye). They are bright. 3.—What's this? 4.—It's the ______ (ear). 5.Look at ______ (he) foot. It's small. 6.I have a ______ (long) tail. 三、从方框中选择合适的单词，补全句子（每词限用一次） head / eyes / mouth / ears / nose / small / big / two / a / look at 1.This is my ______. It's round. 2.I have ______ ______. They can see things. 3.______ ______ my ______. It can smell. 4.It's ______ ______ mouth. I can eat with it. 5.She has two ______. They are ______. 四、句子匹配，将与句子匹配的选项填到括号里。 1. What's this? A. I have two feet. 2. How many eyes do you have? B. It's the arm. 3. Look at my head! C. They're the toes. 4. What are these? D. Wow! It's big. 5. What do you have? E. I have two eyes. 五、按要求改写句子 1.This is my head.（改为一般疑问句） ______________________________________ 2.I have two ears.（改为否定句） ______________________________________ 3.It's a small nose.（对划线部分提问，划线部分：small nose） ______________________________________ 4.Look at my leg.（改为复数句） ______________________________________ 5.This is the eye.（改为复数句） ______________________________________ 六、补全对话 A: 1. ______ This is my body.A. What's this? B. Look at me! C. It's the mouth. D. I have two eyes. E. They're the feet. B: Wow! Let's talk about it. A: 2. ______ B: It's the eye. What's that? A: 3. ______ B: What are these? A: 4. ______ B: Do you have ears? A: Yes! 5. ______ They can hear. 七、【新情境・生活运用】情境判断与纠错 1.This is I head.( ) 改正：____________________________________ 2.I have a eyes.( ) 改正：____________________________________ 3.What's this? — This is the nose.( ) 改正：____________________________________ 4.Look my arm!( ) 改正：____________________________________ 5.I has two hands.( ) 改正：____________________________________ 八、【新趋势・思维探究】根据例句，仿写句子（结合生活实际） 1.例句：This is my head. It's big.（介绍头部及特征） 2.This is my ______. It's small.（填 “nose”） 3.I have ______. They are long.（填 “two legs”） 4.—What's this? —______（填 “It's the mouth”） 5.Look at my ______. They are big.（填 “ears”） 6.This is the ______. It's round.（填 “face”） 参考答案 考点一：介绍身体部位句型（This is my.../ This is the.../ It's a...） 一、单项选择题。 1.A 2.B 3.A 4.A 5.A 考点二：表达拥有身体部位句型（I have...） 一、判断题（对打 “√”，错打 “×”） 1. ×（foot 复数为 feet，应改为 I have two feet.） 2. √ 3. ×（ear 复数为 ears，应改为 I have three ears.） 4. √ 5. ×（I 后用 have，应改为 I have a long tail.） 二、仿写句子（结合单元场景，完成 2 组句子） （1）two small ears （2）two hands 考点三：询问身体部位句型（What's this? / It's the...） 1.A 2.B 3.C 4.A 5.C 考点四：指令与观察句型（Look at...） 一、选词填空（look /look at /at） 1.Look at 2.Look at 3.Look at 4.Look 5.Look at 二、判断题（对打 “√”，错打 “×”） 1.×（缺 at，应改为 Look at my foot!） 2.√ 3.√ 4.×（缺 at，应改为 Look at the head!） 5.√ 综合训练 一、单项选择题 1.B 2.A 3.B 4.A 5.A 6.A 7.C 8.B 9.C 10.B 二、根据括号内提示或上下文，补全单词或用所给词的正确形式填空 1.my 2.eyes 3.ear 4.his 5.long 三、从方框中选择合适的单词，补全句子（每词限用一次） 1.head 2.two；eyes 3.Look at；nose 4.a；big 5.ears；small 四、句子匹配，将与句子匹配的选项填到括号里。 1-B 2-E 3-D 4-C 5-A 五、按要求改写句子 1.Is this your head? 2.I don't have two ears. 3.What's this? 4.Look at our legs. 5.These are the eyes. 六、补全对话 1.B 2.A 3.C 4.E 5.D 七、【新情境・生活运用】情境判断与纠错 1.×；This is my head. 2.×；I have two eyes. 3.×；What's this? — It's A nose. 4.×；Look at my arm! 5.×；I have two hands. 八、【新趋势・思维探究】根据例句，仿写句子（结合生活实际） 1.This is my nose. It's small. 2.I have two legs. They are long. 3.—What's this? —It's the mouth. 4.Look at my ears. They are big. 5.This is the face. It's round. 学科网（北京）股份有限公司 $