寒假预习 Unit 2 语法讲义+知识演练（讲义） -2025-2026学年人教PEP版英语四年级下册

寒假预习：专题04 Unit 2 Family rules语法讲义+知识演练 2025-2026学年四年级下册英语（人教版） 核心语法点梳理 （一）祈使句（表达家庭规则） 1. 否定式：Don't + 动词原形 + 其他.（表示“不要做某事”，家庭规则核心表达） 课本例句：Don't run in the living room.（不要在客厅跑。） Don't touch hot things.（不要触摸热的东西。） 2. 肯定式：动词原形 + 名词短语.（表示“做某事”，表家庭义务） 课本例句：Do my homework first.（先做我的家庭作业。） Tidy your room.（整理你的房间。） 3. 用法提示：无主语，语气直接，多用于表达家庭指令、规则，贴合Unit 2场景。 （二）Can引导的请求许可及回答（家庭场景） 1. 请求许可：Can I + 动词原形 + 其他?（向父母寻求允许，语气委婉） 课本例句：Mum, can I watch TV?（妈妈，我能看电视吗？） 2. 肯定回答：Yes, you can.（是的，你可以。） 3. 否定回答：No, you can't.（不，你不可以。）+ 补充家庭规则 课本例句：— Can I watch TV? — No. You have to do your homework first.（我能看电视吗？不可以，你得先做家庭作业。） （三）Where引导的特殊疑问句（询问人物位置） 1. 基本结构：Where + be动词（is/are） + 某人?（询问某人在哪里，对应家庭房间场景） 课本例句：John, where is Dad?（约翰，爸爸在哪里？） 2. 答语：主语 + be动词（is/are） + in + 房间名词.（某人在某个房间里） 课本例句：Dad is sleeping in his bedroom.（爸爸正在他的卧室睡觉。） She's in the kitchen.（她在厨房。） 3. 一般疑问句：Be动词（is/are） + 主语 + in + 房间名词?（某人在某个房间吗？） 课本例句：Is she in the study?（她在书房吗？） （四）情态动词should表建议（家庭行为） 1. 肯定式：主语 + should + 动词原形 + 其他.（表示“某人应该做某事”，提家庭行为建议） 课本例句：You should wash your hands before eating.（你应该饭前洗手。） You should tidy your bedroom every day.（你应该每天整理你的卧室。） 2. 否定式：主语 + shouldn't（should not） + 动词原形 + 其他.（表示“不应该做某事”） 例句：You shouldn't make a mess in the room.（你不应该把房间弄得一团糟。） 3. 用法提示：should无人称变化，后接动词原形，语气委婉，贴合家庭规则建议场景。 知识演练 一：按要求改写/补全祈使句（每空一词） 1. Run in the living room.（改为否定句） → ______ ______ in the living room. 2. Tidy your bedroom.（改为否定句） → ______ ______ your bedroom. 3. （补全否定句，意为“不要触摸热的东西”） → ______ _______ hot things. 4. Use kind words.（改为同义句，用should） → You ______ ______ kind words. 5. Make a mess in the study.（改为否定句） → ______ ______ a mess in the study. 6. Wash your hands before eating.（改为否定句） → ______ ______ your hands before eating. 7. （补全肯定句，意为“先做你的家庭作业”） → ______ your homework first. 8. Jump on the bed.（改为否定句） → ______ ______ on the bed. 9. Keep your room clean.（改为否定句） → ______ keep your room clean. 10. Listen to Mum and Dad.（改为否定句） → ______ ______ to Mum and Dad. 二：补全对话/改写Can句型（每空一词） 1. — ______ I watch TV, Mum?（补全请求句） — No, you can't. Do your homework first. 2. — Can I jump on the bed? — Yes, you ______.（补全肯定回答） 3. I can tidy my room.（改为一般疑问句） → ______ ______ tidy your room? 4. — Can I touch hot things? — No, you can't. ______ touch hot things.（补充规则） 5. She can wash her hands.（改为否定句） → She ______ ______ her hands. 6. — Can I read in the study? — ______, you can.（补全肯定回答） 7. They can run in the living room.（改为否定句） → They ______ ______ in the living room. 8. — Can I use your pen? — No, you can't. You should use ______ own pen.（补全形容词性物主代词） 9. I can't make a mess.（改为肯定请求句） → ______ I make a mess? 10. — Can I help Mum in the kitchen? — Yes, you can. You can ______ your hands first.（补全课本短语） 三：改写/补全Where句型（每空一词） 1. Dad is in the bedroom.（对划线部分提问） → Where ______ Dad? 2. She is in the study.（改为一般疑问句） → ______ she in the study? 3. — Where is Mum? — She ______ in the kitchen.（补全答语） 4. My brother is in the living room.（对划线部分提问） → Who ______ in the living room? 5. They are in the bathroom.（改为一般疑问句） → ______ they in the bathroom? 6. — Where is your sister? — She is in the ______.（书房） 7. Grandpa is in the living room.（改为否定句） → Grandpa ______ in the living room. 8. — Is he in the kitchen? — No, he ______. He's in the bedroom.（补全否定回答） 9. Amy is in the bathroom.（对划线部分提问） → Where ______ Amy? 10. — Is she in the bedroom? — Yes, she ______. She's sleeping there.（补全肯定回答） 四：单项选择（选择最佳答案，序号填括号内） （ ）1. You ______ tidy your bedroom every morning. It's a family rule. A. should B. can C. don't （ ）2. — Where is Dad? — He ______ in the study. A. are B. is C. am （ ）3. Don't touch hot things. You ______ get hurt. A. should B. shouldn't C. can （ ）4. — Can I watch TV after dinner? — ______. A. Yes, you can B. No, you can't C. Yes, I can （ ）5. You ______ make a mess in the living room. It's not good. A. should B. shouldn't C. can （ ）6. — Is she in the kitchen? — ______. She's cooking there. A. No, she isn't B. Yes, she is C. Yes, she can （ ）7. We ______ wash our hands before eating. It's a good habit. A. should B. can't C. don't （ ）8. — Don't run in the living room! — ______, I won't. A. Thank you B. Sorry C. That's right （ ）9. — Where are they? — They ______ in the bathroom. A. is B. are C. am （ ）10. You ______ use kind words when talking to your little sister. A. should B. can't C. don't 答案 一： 1. Don't run 2. Don't tidy 3. Don't touch 4. should use 5. Don't make 6. Don't wash 7. Do 8. Don't jump 9. Don't 10. Don't listen 二： 1. Can 2. can 3. Can you 4. Don't 5. can't wash 6. Yes 7. can't run 8. your 9. Can 10. wash 三： 1. is 2. Is 3. is 4. is 5. Are 6. study 7. isn't 8. isn't 9. is 10. is 四： 1. A 2. B 3. C 4. A 5. B 6. B 7. A 8. B 9. B 10. A ( 1 ) 学科网（北京）股份有限公司 $