Unit 2 Helping at home 常考重要语法精炼（专项训练）-2026-2027学年外研版（三起）英语四年级上册

**基本信息** 聚焦单元核心语法，以"概念归纳-分层应用"构建知识逻辑，通过多样化题型强化语言能力与学习能力。 **专项设计** |模块|题量/典例|题型特征|知识逻辑| |----|-----------|----------|----------| |语法知识点归纳|7个核心点|概念清晰界定，如can/may辨析、名词复数规则|从基础语法概念（情态动词、时态）到应用规则（句型转换、短语搭配）| |针对性练习|46题（单选15/填空10/情景5等）|覆盖选择、填空、情景应用、句型转换，聚焦语法点直接应用|从单一语法点考查（单选）到综合运用（完成句子），形成"概念-辨析-转换"递进链条|

2026年秋外研版四年级英语上册 Unit 2 Helping at home 常考重要语法精炼 第一部分 重要语法知识点归纳 1. 情态动词 can 与 may 辨析：两者后均接动词原形；can 侧重询问能力、请求帮忙，may 侧重请求许可 2. 一般现在时实义动词句型：Do you...? 一般疑问句，主语非三单借助助动词 do 3. 频度副词 sometimes 用法，放在实义动词前面 4. 感官动词 feel + 形容词（tired / warm）表达感受 5. 家务类名词复数：dish → dishes，规则可数名词复数变化 6. 固定家务动词短语：wash dishes, sweep floor, tidy desk, collect grass, cut grass 7. 句型转换：can/may 句型否定句、一般疑问句、对家务动作划线提问 第二部分 针对性练习 一、单项选择 ( ) 1. —________ you help me sweep the floor? A. Can B. Does C. Are ( ) 2. ________ I go to play outside after finishing chores? A. Can B. May C. Do ( ) 3. There are many dirty ________ on the kitchen table. A. dish B. dishes C. dishs ( ) 4. I ________ tidy my desk after dinner. It’s my chore. A. sometimes B. some C. any ( ) 5. After cleaning all rooms, my mum ________ very tired. A. feel B. feels C. feeling ( ) 6. You must ________ your to-do list before playing. A. finish B. finishes C. finishing ( ) 7. We collect dry ________ to feed the small cow in the yard. A. grass B. grasses C. a grass ( ) 8. —Can you cut the grass for me? —________ A. Yes, I do. B. Yes, I can. C. No, I don’t. ( ) 9. Don’t leave ________ on the floor, please pick it up. A. rubbish B. rubbishes C. a rubbishes ( ) 10. This cleaning job is not hard. It’s very ________. A. dirty B. easy C. tired ( ) 11. My little sister can ________ the pig after school every day. A. feed B. feeds C. feeding ( ) 12. He cleans the wall ________ after school on Friday. A. again B. also C. too ( ) 13. Lily is a helpful ________ at home and at school. A. helper B. help C. helping ( ) 14. Do you ________ water the vegetables in the yard? A. often B. usual C. well ( ) 15. Doing chores ________ us learn to be helpful people. A. help B. helps C. helping 二、用所给单词的适当形式填空 1. I wash three dirty ________ (dish) every evening. 2. Can you ________ (sweep) the floor with me together? 3. She ________ (feel) warm in the sunshine in the yard. 4. We ________ (collect) grass for the cow every morning. 5. Don’t forget ________ (finish) your chores first. 6. My brother sometimes ________ (cut) the grass on weekends. 7. These dirty desks need ________ (clean) right now. 8. May I ________ (pick) flowers in the small yard? 9. He is a good ________ (help) for his family. 10. The floor is dirty, please clean it ________ (again). 三、选词填空（词汇：chore, tired, may, tidy, rubbish） 1. Washing dishes is one of my daily ________ at home. 2. After lots of housework, my father feels ________. 3. ________ I use your cloth to clean the desk? 4. Please ________ your books before you go out to play. 5. Take the ________ to the bin behind the yard. 四、情景选择 ( ) 1. 礼貌询问对方能不能帮忙洗碗： A. Can you help me wash the dishes? B. Where are the dishes? C. Wash dishes now. ( ) 2. 询问自己是否可以去室外玩耍： A. May I play outside? B. I play outside. C. Do you play outside? ( ) 3. 表达做完家务后感觉很累： A. I feel tired after chores. B. Chores are easy. C. I never do chores. ( ) 4. 夸赞别人家务做得很好： A. Good job! B. Bad job. C. No job. ( ) 5. 说明整理书桌是很简单的家务： A. Tidying desk is easy. B. Desk is dirty. C. I hate tidying desk. 五、按要求完成句子 1. I can tidy my desk every day.（改为否定句） ___________________________________________________________________________ 2. She sweeps the floor after school.（改为一般疑问句） ___________________________________________________________________________ 3. May I play outside now?（给出否定回答） ___________________________________________________________________________ 4. They collect grass for the cow in the yard.（改为否定句） ___________________________________________________________________________ 5. I can wash the dishes after dinner.（对画线部分提问） ___________________________________________________________________________ 六、语法选择题 ( ) 1. can 和 may 后面必须接 A. 动词原形 B. 动词ing形式 C. 名词 ( ) 2. dish 的正确复数形式是 A. dishs B. dishes C. dishies ( ) 3. 主语第三人称单数，feel 要变为 A. feel B. feels C. feeling ( ) 4. 询问日常习惯用助动词 A. Are B. Does C. Do ( ) 5. sometimes 在句子中放在 A. 名词后面 B. 实义动词前面 C. 句子末尾 ( ) 6. 表达请求许可优先使用 A. can B. may C. must 参考答案 一、单项选择 1.A 2.B 3.B 4.A 5.B 6.A 7.A 8.B 9.A 10.B 11.A 12.A 13.A 14.A 15.B 二、用所给单词的适当形式填空 1. dishes 2. sweep 3. feels 4. collect 5. to finish 6. cuts 7. cleaning 8. pick 9. helper 10. again 三、选词填空 1. chore 2. tired 3. May 4. tidy 5. rubbish 四、情景选择 1.A 2.A 3.A 4.A 5.A 五、按要求完成句子 1. I can not tidy my desk every day. 2. Does she sweep the floor after school? 3. No, you may not. 4. They do not collect grass for the cow in the yard. 5. What can you do after dinner? 六、语法选择题 1.A 2.B 3.B 4.C 5.B 6.B 学科网（北京）股份有限公司 $