Unit 2 Helping at home（易错题专项训练·基础知识）英语外研版三起四年级上册（新教材）

**基本信息** 聚焦Unit 2家庭劳动主题，以“发音+功能句型”为核心，通过“易错精讲-小练笔-综合训练”三阶体系，系统突破基础知识易混点，提升语言应用准确性与学习策略。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |字母w/y发音|小练笔01（单词分类）|半元音发音要领（口型/声带振动）、辨音技巧|从发音规则到单词应用，建立音形联系| |May I请求句型|小练笔02（5单选）|情态动词may后接原形、肯定/否定回答规范|结合课文原句解析结构，通过错题对比强化语法规则| |Can you询问句型|小练笔03（5单选）|can表请求用法、动词原形搭配|关联Unit 1能力询问用法，实现知识迁移| |need to do句型|小练笔04（5单选）|实义动词need有人称变化、to+动词原形结构|从语义需求到语法形式，构建“意义-结构”对应|

Unit 2 Helping at home 专题01 基础知识·易错题专项训练 · 内容导航 · 字母w和y的发音 表示请求的句型 礼貌地询问某人能做某事的句型 表达某人需要做某事的句型 高频易错点、易错点提示、小练笔、答题点拨 易错精讲 字母w和y的发音高频易错点01 · 字母Ww的发音 音标：/w/ 发音要领：/w/是浊辅音，发音时声带振动。舌后部向软腭抬起。双唇突出，并要呈小圆口形。发音瞬间即滑向后面的元音。/w/又称半元音。 例词：work工作 we我们 water浇水 sweep打扫 wash洗 · 字母Yy的发音 音标：/j/ 发音要领：/j/是浊辅音，发音时声带振动。舌前部向口腔上发音壁抬起。双唇呈要扁平口形。发音领瞬间即滑向后面的元音。/j/又称半元音。 例词：yard庭院 you你 半元音易错点提示 半元音也叫滑音，它介于元音和辅音之间： · 音色、口型很像元音； · 气流有轻微阻碍，用法像辅音，不能单独构成音节，必须快速滑向后面的元音。 英语里一共只有 2 个半元音：/w/、/j/。 小练笔01 请你将含/w/和/j/发音的单词找出来。(填序号)(其中有两个多余的) A．wash  B．happy  C．write  D．yes  E．yellow  F．we  G．you 1．/w/: ___________________________________ 2．/j/: ___________________________________ 表示请求的句型高频易错点02 【课文原句】 Dad, may I play outside?爸爸，我可以出去玩吗？ 【句型结构】 May I+动词原形(+其他)? 【重点解析】 · 此句型是以may开头的一般疑问句，用于表达自己请求，征求对方的意见情态动词may意为可以，后接动词原形，没有人表和数的变化； · 肯定回答常用Yes./Sure./Of course.；否定回答用Sorry/No, you can't. 【例句】—May I go to the park on Saturday, Mum?我星期六可以去公园吗,妈妈? —Sure.当然。 易错点提示 情态动词 may 后面只能接动词原形，无人称、时态变化。 ❌️ May I playing outside?（play 加 ing，错误） ✅️ May I play outside? 小练笔02 单选题。 ( ) 1．—May I go outside to play? —No, you ______. You have to finish your homework first. A．aren’t B．can’t C．may ( ) 2．—May I drink some water? —______ A．Yes, please. B．Yes, you do. C．No, I can’t. ( ) 3．—May I watch TV now? —No, you ______. You must finish your homework first. A．may not B．can’t C．aren’t ( ) 4．想礼貌地询问“我可以先出去玩吗？”，应该说： A．Can I play outside first? B．May I play outside first? C．Do you play outside? ( ) 5．—______ I help you wash the dishes? —Yes, please. A．May B．Does C．Do 礼貌地询问某人能做某事的句型高频易错点03 【课文原句】 —Can you tidy your room? 你能整理你的房间吗？ —OK. 好的。 【句型结构】 Can you+动词原形(+其他)? 【重点解析】 · 【知识回顾】我们在Unit 1学习过该句型用于询问对方是否有能力做某事的用法，Can you jump high, Daming?大明，你能跳得高吗？ 此处用于表达请求对方做某事。 · 情态动词can在此处意为“能,可以”，表示请求，没有人称和数的变化，后面接动词原形 · 肯定回答常用“OK!/Sure!/No problem!”等；否定回答常用“Sorry,…”，可简单说明原因。 【例句】—Can you teach me English?你能教我英语吗? —No problem.没问题。 易错点提示 can 作为情态动词，后面只能加动词原形。 ❌️ Can you teaching me? ✅️ Can you teach me? 小练笔03 单选题。 ( ) 1．—Can you sing songs? —______ A．Yes, I am. B．Yes, I can. C．No, I don’t. ( ) 2．—Can you ______ the cows? —No, I can’t. A．milks B．milking C．milk ( ) 3．—Can you help me ______ the floor? —Yes! A．clean B．cleans C．cleaning ( ) 4．—Can you help me on the farm? —OK. I can ______. A．make the beds B．wash the dishes C．milk the cows ( ) 5．—Can you help me with my English? —______. A．No problem B．Yes, I do C．No, I’m not 表达某人需要做某事的句型高频易错点04 【课文原句】 I need to clean the floor. 我需要打扫地板。 【句型结构】 主语 + need to + 动词原形 + 其他. need to 的用法易错点提示 · “need to do sth.” 表示 “需要做某事”，其中 “need” 是实义动词，有人称、数和时态的变化。 · 主语通常是人，强调某人自身有做某事的需求。 例：She needs to finish her homework before dinner.（她需要在晚饭前完成作业。） Do you need to buy some milk?（你需要买些牛奶吗？） 小练笔04 单选题。 ( ) 1．Mike ______ need to water the flowers. A．don’t B．doesn’t C．isn’t ( ) 2．—______ you need to go home now? —Yes, I do. A．Do B．Does C．Are ( ) 3．They don’t need ______ collect the eggs. A．/ B．to C．do ( ) 4．She ______ to cut the grass. A．need B．needs C．needing ( ) 5．You need ______ the floor. A．sweeps B．to sweep C．sweeping 综合训练 一、选择与所给单词划线部分发音相同的单词。 ( ) 1．work A．water B．yard C．feed ( ) 2．yard A．yes B．wash C．vegetables ( ) 3．we A．you B．water C．sweep ( ) 4．you A．yard B．work C．feed 二、请仔细观察Ben一家人在农场的情景，选择正确的选项，完成家务清单，并将序号填写在横线上。(有一个多余的选项) A．milk the cows    B．get the eggs    C．feed the pigs    D．cut the grass    E．pick the apples    F．water the vegetables 三、单项选择。 ( ) 1．They don’t need ______ help others. A．to B．/ C．do ( ) 2．She ______ to wash the dishes. A．need B．needs C．needing ( ) 3．—Can you help me ______ the bed? —Yes, I can. A．make B．makes C．making ( ) 4．Please help her ______ the dishes. A．wash B．washes C．washing ( ) 5．Can you help ______ sweep the floor? A．I B．me C．my 四、选词填空。 1．She is happy (warm / to warm) up her family. 2．Lucy is so (helpful / help) at school. All the teachers like her. 3．She does the chores (good / well). 4．Mary can (pick / picks) the apples. 5．I often (help / helps) my mum with her housework. 五、给下列句子选择对应的图片。 A．     B．    C．   D．     E． ( ) 1．I can milk the cows on the farm. ( ) 2．He can water the vegetables. ( ) 3．She can take out the rubbish in the morning. ( ) 4．I feed the chickens in the afternoon. ( ) 5．I can help Grandma get the eggs. 六、读一读，选择合适答句。 A．I can tidy the desk. B．Well done! C．Yes. I need to tidy my room. D．Sure. E．I need to clean the floor. ( ) 1．Sam, are you still busy? ( ) 2．What can you do? ( ) 3．My room is clean now. ( ) 4．What do you need to do? ( ) 5．May I play outside? 七、读一读，根据情景选择合适的选项补全对话。 A．Can you help me do chores first? B．Good job! C．May I go outside and play, Mum? D．Can you also feed our little dog? E．Yes, please do. Cindy: 1. Mum: Yes. But I have a lot of chores to do. 2. Cindy: Sure. May I help clean the desk? Mum: 3. Cindy: Mum, the desk is clean. Mum: 4. It’s so tidy. 5. Cindy: OK. That’s easy. Mum: You’re a good helper. After that, you can go play. Cindy: Great! I’m so happy. Thank you, Mum. 八、【新语篇·绘本】阅读绘本，选择正确的答案。 We use machines at home every day. They help us a lot! We wash clothes with a washer. Put in dirty clothes’ and laundry detergent. Then it cleans them. We dry things with a dryer. Wet clothes go in. Then they come out dry. We freeze food with a freezer. Put food in it. It keeps food cold. We make dinner with a stove. Put a pan on it. Then we can cook. We make the cake with a mixer. Put ingredients in a bowl. The mixer mixes them. We make a milk shake with a blender. Put fruit and milk in it. It makes a nice drink. What machines do you use every day? They make our lives easier! 词汇积累: laundry detergent洗衣液; dry使……变干; freeze冷冻; cold冷的; pan平底锅; ingredients原料; mix混合; easier更简单的 ( ) 1．How many machines are mentioned(提及到)? A．Six. B．Seven. C．Eight. ( ) 2．I want to __________. I can use A．make dinner B．make the cake C．make a milk shake ( ) 3．I can use __________ to freeze food. A． B． C． ( ) 4．From the passage, we know that __________. A．machines aren’t helpful B．machines can make chores difficult C．technology creates a better life 九、请阅读小短文，并判断下列句子的正误。正确的请在括号内填“T”，错误的请填“F”。 Hi, I’m Wu Wei. There are three people in my family. In my family, everyone helps with some chores. My father can clean the rooms and wash the car. My mother can cook meals and wash the clothes. I can sweep the floor and feed the dog. We all like helping at home. It makes our home clean and tidy. ( ) 1．Wu Wei’s father can wash the car. ( ) 2．Wu Wei’s mother can clean the rooms. ( ) 3．Wu Wei can feed the cat at home. ( ) 4．The people in Wu Wei’s family like helping at home. ( ) 5．Wu Wei’s home isn’t tidy. 参考答案 小练笔 01 1．A F 2．D E G 小练笔 02 1．B 2．A 3．B 4．B 5．A 小练笔 03 1．B 2．C 3．A 4．C 5．A 小练笔 04 1．B 2．A 3．B 4．B 5．B 综合训练 一、选择与所给单词划线部分发音相同的单词。 1．A 2．A 3．B 4．A 二、请仔细观察Ben一家人在农场的情景，选择正确的选项，完成家务清单，并将序号填写在横线上。(有一个多余的选项) 1．A 2．E 3．B 4．C 5．D 三、单项选择。 1．A 2．B 3．A 4．A 5．B 四、选词填空。 1．to warm 2．helpful 3．well 4．pick 5．help 五、给下列句子选择对应的图片。 1．D 2．E 3．B 4．A 5．C 六、读一读，选择合适答句。 1．C 2．A 3．B 4．E 5．D 七、读一读，根据情景选择合适的选项补全对话。 1．C 2．A 3．E 4．B 5．D 八、【新语篇·绘本】阅读绘本，选择正确的答案。 1．A 2．B 3．B 4．C 九、请阅读小短文，并判断下列句子的正误。正确的请在括号内填“T”，错误的请填“F”。 1．T 2．F 3．F 4．T 5．F 第 1 页 共 18 页 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $