Unit 3 第2课时 Explore（分层作业）英语沪教版四年级上册（新教材）

**基本信息** 本同步练以基础、提升、拓展三层递进设计，覆盖数字运用核心词汇与句型，通过情景匹配、语用补全到语篇任务，构建从单一知识到综合应用的巩固路径，适配新授课分层教学需求，培养语言能力与思维品质。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |基础练|核心词汇（odd/even等）、基础句型匹配|问答连线、生活情景选择，直接巩固课时基础| |提升练|词汇辨析、语法（主谓一致）、简单语用|选词补全、真实交际对话，衔接基础与综合| |拓展练|语篇理解、综合语言运用|任务型阅读（判断/仿写/连句），培养跨情境应用能力|

Unit 3 How do we use numbers? 第2课时Explore 基础练 一、问答连线匹配 Ⅰ　　　　　　　　　　　　　　 Ⅱ ( )1. What can numbers help us do?　 A. Five minus one equals four. ( )2. What is 5-1=4 in English?　 B. We can count things. ( )3. Are there odd and even numbers? C. Yes, there are. ( )4. How many pencils do we have? D. We have eleven pencils. ( )5. How many apples do you have? E. I have four apples. 二、【新情境·生活实际】情景选择。 ( ) 1. 数学课上，老师想询问物品数量，可以说： A. How many ... do you have? B. How are you? ( ) 2. 算式 5+6=11，英语表达是： A. Five plus six equals eleven. B. Five minus six equals eleven. ( ) 3. 双数我们叫作： A. even numbers B. odd numbers ( )4. —How many books do you have?—I ______ three books. A. have B. don't have ( ) 5. We don't have ten apples. 这句话意思是： A. 我们有 10 个苹果。 B. 我们没有 10 个苹果。 提升练 三、选词补全句子 备选单词：minus, odd, count, even, plus 1. There are even numbers and ______ numbers. 2. Numbers help us ______ things. 3. Five ______ one equals four. 4. Three ______ two equals five. 四、单项选择 ( )1. Five plus six ______ eleven. A. Equal B. equals C. Am ( )2. 7 is an ______ number. A. odd B. even C. Big ( )3. Five minus one ______ four. A. equal B. equals C. Are ( )4. —______ rulers do you have?—I have two rulers. A. How many B. What C. Where ( ) 5.【文化意识】Numbers are widely used in (广泛用于)Chinese ancient maths. Ancient (古代的)people used numbers to ______ farm goods. A. count B. draw C. sing 五、连词成句。 1. many, How, pencils, you, do, have (?) —————————————— 2. plus, Five, six, eleven, equals (.) —————————————— 3. minus, Five, one, four, equals (.) —————————————— 4. have, We, ten, apples (.) —————————————— 5. don't, I, apples, ten, have (.) —————————————— 六、【新题型・真实交际场景】选择正确的单词，补全对话。 备选单词：How many, have, don't, pencils, eleven Boy: Hello! 1._______ pencils do you have? Girl: I 2. ________six green pencils. What about you? Boy: I have five orange pencils. Girl: Wow! We have 3. ________pencils together. Boy: Do you have ten pencils? Girl: No, I 4.________ I only have six 5._________. 拓展练 七、【新题型·任务型阅读】阅读短文，完成对应任务。 Numbers are important. We use numbers every day. Some numbers are odd, some are even. We can use plus and minus to work out maths problems.We have five orange pencils and six green pencils. Five plus six equals eleven. We have eleven pencils.We have five apples. One apple is eaten. Five minus one equals four. Now we have four apples.We ask “How many ... do you have?” to talk about the number of school things. 任务一：判断正 (T) 误 (F) ( )1. There are odd numbers and even numbers. ( )2. Five plus six equals ten. ( )3. We can use plus and minus in maths. ( )4. We have five apples at last. ( )5. “How many ...” asks about the number of things. 任务二、仿照例句仿写句子 例句：How many pencils do you have? 1. 你有多少本书？ _______________________________ 2. 我有三支尺子。 _______________________________ 任务三、连词成句 1. help, Numbers, count, us, things (.) _______________________________ 2. many, How, rulers, you, do, have (?) _______________________________ 任务四、情景单选 ( ) —How many pens do you have? A. I have two pens. B. I like pens. 参考解析 基础练 一、问答连线答案 1—B 2—A 3—C 4—D 5—E 【考点】数字运算英语表达、情景问答匹配；odd/even、plus/minus 核心词汇运用 二、【新情境·生活实际】情景选择。 1.A解析：How many... 用来询问物品数量；How are you 用于询问状态。 2.A解析：plus 代表加法，minus 代表减法。 3.A解析：even numbers 双数；odd numbers 单数。 4.A解析：I have... 表示我拥有某物。 5.B解析：don't have 表示没有。 提升练 三．选词补全句子 1.odd 2. count 3. minus 4. plus 四、单项选择。 1.B解析：算式作主语视作单数，动词使用equals。 2.A解析：7 是奇数 odd number。 3.B解析：数学算式作主语，谓语动词用第三人称单数 equals。 4.A解析：How many 用于询问物品数量。 5.A解析：【文化意识】中国古代先民使用数字清点农耕物资。count 清点；draw 画画；sing 唱歌。 五、连词成句。 1.How many pencils do you have? 2. Five plus six equals eleven. 3. Five minus one equals four. 4. We have ten apples. 5. I don't have ten apples. 六、【新题型・真实交际场景】选择正确的单词，补全对话。 1.How many 2. have 3. eleven 4. don't 5. pencils 拓展练 七、【新题型·任务型阅读】阅读故事，完成下列任务。 任务一 判断正误 1.T 解析：原文提及存在奇数和偶数。 2.F 解析：5+6=11，不是 10。 3.T 解析：加减法 plus、minus 用于数学计算。 4.F 解析：吃掉一个苹果后剩余 4 个苹果。 5.T 解析：How many 句型用来询问物品数量。 任务二 仿写参考 1.How many books do you have? 2. I have three rulers. 任务三 连词成句 1. Numbers help us count things. 2. How many rulers do you have? 任务四 情景单选 A解析：问句询问拥有物品数量，答语需要给出数量。 6 / 6 学科网（北京）股份有限公司 学科网（北京）股份有限公司zxxk.com 学科网（北京）股份有限公司 $