Unit 3 How do we use numbers（期中知识清单）四年级英语上学期（沪教版·新教材）

该小学英语知识清单系统梳理了沪教版四年级上册Unit 3“How do we use numbers?”的核心内容，涵盖数字分类与核心词汇、加减法英文表达、数量询问与表达句型、数字生活应用四大知识范畴，通过定义特征解析、句型结构示范、场景应用示例搭建了从基础词汇到综合运用的递进式学习支架。 清单通过“考点分类+表格梳理+分层练习”构建完整知识体系，如用表格对比奇数偶数的定义特征与例句，清晰呈现核心词汇；设计“加减法场景化句型转换”和“生活应用补全句子”等练习，培养学生语言能力与思维品质。配备“大显身手”分层练习题及参考答案，不同基础学生可自主巩固，教师能据此设计针对性教学活动，提升课堂效率。

知识清单·沪教版四年级上册 Unit 3 How do we use numbers? 知识梳理 知识点拨 【考点一】数字分类与核心词汇 【考点二】加法与减法的英文表达 【考点三】询问与表达数量的核心句型 【考点四】数字在日常生活中的应用 考点一：数字分类与核心词汇 本考点需掌握 1-20 范围内奇数与偶数的定义、特征及对应英文表达，能准确识别和区分两类数字，同时牢记数字相关基础词汇的拼写与含义。 词汇 / 概念 含义与特征 运用场景示例 odd numbers（奇数） 不能被 2 整除的数字，1-20 内的奇数：1,3,5,7,9,11,13,15,17,19 This is an odd number.（这是一个奇数。） even numbers（偶数） 能被 2 整除的数字，1-20 内的偶数：2,4,6,8,10,12,14,16,18,20 Ten is an even number.（10 是一个偶数。） count 动词，“数数；计算总数” Numbers help us count things.（数字帮助我们数东西。） plus 介词，“加；加上”，对应符号 “+” Five plus six equals eleven.（5 加 6 等于 11。） minus 介词，“减；减去”，对应符号 “-” Ten minus two equals eight.（10 减 2 等于 8。） equal 动词，“等于”，对应符号 “=” Twelve plus seven equals nineteen.（12 加 7 等于 19。） 【大显身手】 1、 单项选择题 ( )1.Which of the following is an odd number? A. 8 B. 11 C. 14 D. 20 ( )2.We use the word “_______” to talk about “15-6=9”. A. plus B. equal C. minus D. count ( )3.How many even numbers are there between 1 and 10? A. 4 B. 5 C. 6 D. 7 ( )4.Numbers can help us ______ the number of books in the bag. A. plus B. minus C. equal D. count ( )5.“Seven plus three equals ten” is “________ ”. A. 7-3=10 B. 7+3=10 C. 10-3=7 D. 10+3=7 2、 根据中文提示写单词 1.We can divide numbers into two groups: _________（奇数）and even numbers. 2.“Seven ________（加）five equals twelve” means “7+5=12”. 3.Please ______（数）how many pencils are on the desk. 4.“Ten _______（减）four equals six” is a simple subtraction. 5.In the 算式 “9+6=15”, “=” means “_______（等于）”. 考点二：加法与减法的英文表达 本考点需掌握加法和减法的英文 “说” 与 “写”，能正确读出算式、写出对应英文句子，同时能结合具体场景（如计数物品）运用加减法表达。 加法表达 英文说法：“数字 A + plus + 数字 B + equals + 结果” 示例：5+6=11 → “Five plus six equals eleven.” 场景运用：当描述两人拥有物品的总数时，可用加法表达。 示例：You have 5 pencils. I have 6 pencils. → We have 11 pencils.（Five plus six equals eleven.） 减法表达 英文说法：“数字 A + minus + 数字 B + equals + 结果” 示例：5-1=4 → “Five minus one equals four.” 场景运用：当描述物品数量减少时，可用减法表达。 示例：You have 5 apples. Your sister eats 1. → You have 4 apples.（Five minus one equals four.） 【大显身手】 1、 单项选择题 ( )1.Which sentence matches “8+4=12”? A. Eight minus four equals twelve. B. Eight plus four equals twelve. C. Twelve minus four equals eight. D. Twelve plus four equals eight. ( )2.“______” is the right way to say “14-3=11”. A. Fourteen plus three equals eleven. B. Three minus fourteen equals eleven. C. Fourteen minus three equals eleven. D. Eleven plus three equals fourteen. ( )3.Lanlan has 7 candies. Junjun gives her 3 more. Now Lanlan has ______ candies. A. 4（7-3=4） B. 10（7+3=10） C. 7（7+0=7） D. 3（7-4=3） ( )4.There are 12 birds on the tree. 5 fly away. Now there are ______ birds. A. 7（12-5=7） B. 17（12+5=17） C. 5（12-7=5） D. 12（12-0=12） ( )5.“Six plus ______ equals fifteen” means “6+9=15”. A. six B. seven C. eight D. nine 二、句型转换 1.10+2=12.（改为英文句子） __________________________________________ 2. Five minus two equals three.（改为算式） ___________________________________________ 3. We have 11 pencils.（用加法表达原因：5+6=11） __________________________________________ 4. She has 4 apples now.（用减法表达原因：5-1=4） __________________________________________ 5.15-8=7.（改为英文疑问句：“15 减 8 等于 7 吗？”） __________________________________________ 考点三：询问与表达数量的核心句型 本考点需掌握 “询问物品数量” 和 “表达拥有 / 没有某物” 的句型，注意人称、数量的匹配，以及缩写形式（do not → don't）的运用。 询问数量 句型结构：How many + 可数名词复数 + do you have? 示例：How many books do you have?（你有多少本书？） 回答方式： 肯定回答：I have + 数字 + 名词复数. 示例：I have three books.（我有 3 本书。） 否定回答：I don't have + 数字 / 名词复数.（don't = do not） 示例：I don't have ten books.（我没有 10 本书。） 询问他人 / 复数主体数量 句型结构：How many + 可数名词复数 + do they/they（其他人）have? 示例：How many apples do they have?（他们有多少个苹果？） 回答方式：They have.../They don't have... 示例：They have four apples. / They don't have ten apples. 【大显身手】 1、 单项选择题 ( )1.-______ pencils do you have? -I have five pencils. A. What B. Where C. How many D. How much ( )2.-How many rulers do they have? -______ have six rulers. A. I B. They C. He D. She ( )3. -Do you have ten pens? -________ . I have only three. A. Yes, I do B. No, I don't C. Yes, I have D. No, I have ( )4. -How many hats does Tanya have? - _______ has ten hats. A. She B. He C. They D. We ( )5.-______ do you have? -I have seven T-shirts. A. How many T-shirts B. Where are the T-shirts C. What colour are the T-shirts D. How much are the T-shirts 二、情景问答 1.A: How many hats do you have?（你有 5 顶帽子） B: _________________________________________________ 2.A: Do they have twelve erasers?（他们没有 12 块橡皮，只有 8 块） B: _________________________________________________ 3.A: How many T-shirts does Leon have?（Leon 有 7 件 T 恤） B: _________________________________________________ 4. A: Do you have eight notebooks?（你有 8 本笔记本） B: _________________________________________________ 5.A: How many apples do Lanlan and Junjun have?（他们有 9 个苹果） B: _________________________________________________ 考点四：数字在日常生活中的应用 本考点需理解数字在不同场景中的功能，能描述数字在 “计数物品、表达年龄、标识时间、标注价格” 等场景的运用，并用简单句子说明。 应用场景 数字功能 示例句子 计数物品 统计物品数量 Tanya has ten hats.（Tanya 有 10 顶帽子。） 表达年龄 说明人物年龄 Mingming is ten years old.（明明 10 岁了。） 描述时间 表示具体时刻 The clock says 3 o'clock.（时钟显示 3 点。） 标注价格 标识商品价格 The book is ¥45.（这本书 45 元。） 联系他人 表示电话号码 My phone number is 138xxxx5678.（我的电话号码是 138xxxx5678。） 【大显身手】 1、 单项选择题 ( )1.We use numbers to ______ when we want to know “how old someone is”. A. tell the time B. show the price C. express age D. count animals ( )2.-What's the price of the toy car? -It's ______. A. 3 o'clock B. ¥60 C. 5 years old D. 10 books ( )3.We can know the time from the ______ on the clock. A. colours B. shapes C. numbers D. pictures ( )4.-How old is Mingming? -He is ______. A. 8 years old B. 8 o'clock C. ¥8 D. 8 books ( )5.We use ______ to call our friends. A. their ages B. their phone numbers C. the time D. the price 二、根据场景补全句子 1.We use numbers to count clothes. For example, Leon has ______（7 件 T 恤）. 2.When we want to know “what time it is”, we look at the ______（时钟上的数字）. 3.The price of the pen is ______（15 元）. We can see the number on the pen. 4. My little brother is ______（5 岁）. We use the number “5” to tell his age. 5.My mother's phone number is ______（示例：139xxxx1234）. We use numbers to call her. 综合训练 一、单项选择题 ( )1.Which of the following is an even number? A. 9 B. 13 C. 16 D. 19 ( )2.-How many ______ do you have? -I have four. A. pencil B. a pencil C. pencils D. pencil's ( )3.“18-7=11” can be said as “_______”. A. Eighteen plus seven equals eleven. B. Eighteen minus seven equals eleven. C. Eleven plus seven equals eighteen. D. Eleven minus seven equals eighteen. ( )4.We use numbers to ______ the number of people at the party. A. count B. plus C. minus D. equal ( )5.-Do they have ten apples? -. They have six. A. Yes, they do B. No, they don't C. Yes, they have D. No, they have 二、根据括号内提示，补全句子 1.______（12 加 5 等于 17）can be written as “12+5=17”. 2.-How many hats does Tanya have? -She has ______（10 顶帽子）. 3.We can divide numbers into ______（奇数）and even numbers. 4. There are 20 students in the class. 8 are boys, so ______（12 个是女孩）.（用减法表达：20-8=12）5. -Do you have nine rulers? -No, ______（我没有）. I have five. 三、从方框中选择合适的单词，补全短文（每词限用一次） plus minus count odd even ten Hello, everyone! Let's talk about numbers. First, we can ______ things with numbers. For example, I have ______ pencils. Numbers can be “________” (like 1,3,5) or “_______” (like 2,4,6). We also use numbers for operations: “five ______ two equals seven” (5+2=7) and “nine ______ two equals seven” (9-2=7). Numbers are very useful in our life! 四、按要求改写句子 1.13+4=17.（改为英文句子） ___________________________________________ 2. I have eight books.（改为一般疑问句） ___________________________________________ 3. They have seven apples.（用加法表达原因：3+4=7） ___________________________________________ 4. Five minus three equals two.（改为否定句：5 减 3 不等于 4） ____________________________________________ 5. How many pens do you have?（用 “没有 10 支，有 6 支” 回答） ____________________________________________ 参考答案 考点一： 一、单项选择题：B C B D B 二、根据中文提示写单词：1.odd numbers 2.Plus 3.count 4.minus 5.equals 考点二： 单项选择题： B C B A D 句型转换：1. Ten plus two equals twelve. 2.5-2=3 3. We have five pencils and six pencils. Five plus six equals eleven. 4. She has five apples. Her sister eats one. Five minus one equals four. 5. Does fifteen minus eight equal seven? 考点三： 一、单项选择题：C B B A A 二、情景问答：1. I have five hats. 2.No, they don't. They have eight erasers. 3.He has seven T-shirts. 4.Yes, I do. I have eight notebooks. 5.They have nine apples. 考点四： 一、单项选择题：C B C A B 二、根据场景补全句子：1.seven T-shirts 2.numbers on the clock 3.¥15 4.five years old 5.139xxxx1234（合理即可） 【综合训练】 1、 单项选择题 C C B A B 2、 根据括号内提示，补全句子： 1.Twelve plus five equals seventeen 2.ten hats 3. odd numbers 4. twelve are girls (20-8=12) 5.I don't 三、补全短文： count; ten; odd; even; plus; minus 3、 按要求改写句子： 4、 1.Thirteen plus four equals seventeen. 2. Do you have eight books? 3. They have three apples and four apples. Three plus four equals seven. 4. Five minus three doesn't equal four. 5. I don't have ten pens. I have six pens. 2 / 2 学科网（北京）股份有限公司 $