2026春单元知识清单&易错练习 Unit 1 Class rules 人教PEP 三起 四年级下（新教材）

2026春单元知识清单&易错练习 Unit 1 Class rules 人教PEP 四下 语音： 字母组合ar 发/ɑː/音, 例: arm手臂 car 汽车 card卡片 far 遥远的 重点单词： class 课; 课程; 班; 班级 rule 规则; 规章 classroom教室 light 灯; 光 blackboard黑板 desk书桌; 办公桌 chair椅子 music 音乐 wall 墙; 壁 door门 window窗 fan 风扇 newspaper 报纸 workbook 练习册; 作业本 sorry 对不起 late 迟到; 迟发生 ready 准备好 tidy 整洁的; 整齐的 when 当……时; 什么时候 understand 懂; 理解 重点短语： be late for class 上课迟到 be nice 友善 hurry up快点; 赶快 hand out 分发 eat in class 在课堂上吃东西 class rules 班级规则 clean the floor 打扫地板 run in the classroom 在教室里跑 put your hand up 举起你的手 turn off the lights 关灯 work hard 努力工作 on duty 值日 clean and tidy 干净整洁 clean the blackboard 擦黑板 close the window 关窗户 music room 音乐教室 sweep the floor 扫地 nice and clean 好看又干净 helping hands 帮手 eyes on me 看我 wall newspapers 墙报 turn off the fans 关闭风扇 keep the classroom clean 保持教室干净 take toys to school 带玩具去学校 put back the desks and chairs 把桌椅放回原位 重点句型： 1.Don't be late for class! 上课别迟到! 2.Yes,but don't eat it in class。 可以，但是别在课堂上吃它。 3.Keep the classroom clean. 保持教室干净。 4.I can 'clean the blackboard. 我可以擦黑板。 5.I can sweep the floor. 我可以扫地。 6.I can put back the desks and chairs. 我可以把桌椅放回原位。 7.Wow! Our classroom is clean and tidy! 哇!我们的教室既干净又整齐! 8.You can't take toys to school. 你不能带玩具去学校。 9.I'm ready. Let's go! 我准备好了。走吧! 10.Who's on duty today? 今天谁值日? 11.Excuse me? 对不起, 请再说一次可以吗? 句型解析和语法： 1.告知学生不能做某事的句型: Don't be late for class! 上课别迟到! 句型结构： Don't+动词原形+其他. 2.提醒学生需要做某事的句型: Keep the classroom clean. 保持教室干净。 句型结构： 动词原形+其他. 3.表达某人会或能做某事的句型: I can put back the desks and chairs. 我可以把桌椅放回原位。 句型结构： 主语+can+动词原形+其他. 4.表达某人不会或不能做某事的句型: You can't take toys to school. 你不能带玩具去学校。 句型结构： 主语+can't+动词原形+其他. 5.祈使句的用法 一、定义： 用于表达请求，命令，叮嘱或建议等。 二、特点： 1.时态为一般现在时，多用动词原形(No+doing除外) 2.省略主语 3.句末用感叹号或者句号 三、肯定祈使句 1.Do型：动词原形+其他。 例：(1)Stand up。站起来。 (2)Wash your hands。洗手。 2.Be型：Be+名词/形容词+其他。 例：(1)Be careful。小心。 (2)Be a man。做一个男人。 3.Let型：Let sb.do sth. 例：Let's go to the park。让我们去公园吧。 四、否定祈使句： 1.Do型：Don't+动词原形+其他。例： (1)Don't stand up。不要站起来。 (2)Don't wash your hands。不要洗手。 2.Be型：Don't+be+名词/形容词+其他。 例：Don't be careless。不要粗心。 3. Let型：Don't let sb.do sth./Let sb.not do sth. 例：Don't let him watch TV./Let him not watch TV。不要让他看电视。 4.No型：No+doing. 例：(1)No smoking。禁止吸烟。 (2) No parking。禁止停车。 五、其他：Never+动词原形+其他。 例：Never do that again。不要再那么做了。 6.情态动词can的用法 一、定义：can为情态动词，表示能力或许可，没有人称和数的变化，后接动词原形，一起构成谓语。 二、结构： 肯定句 主语+can+动词原形(+其他). I can clean the blackboard. 我能擦黑板。 否定句 主语+can't(cannot)+动词原形(+其他). You can't take toys to school. 你不能带玩具到学校。 一般疑问句 —Can+主语+动词原形(+其他)? —Yes, 主语+can./No, 主语+can't. —Can they come to the party? —Yes,they can。 —他们能来派对吗? —是的, 他们能。 特殊疑问句 特殊疑问词+can+主语+动词原形(+其他)? —Where can she go? —She can go to Dalian. —她可以去哪里? —她可以去大连。 *将含有can的句子改为一般疑问句时，把can提至句首，其首字母改为大写，句点改为问号。 *当含有can的一般疑问句主语是I时，表示请求，希望得到对方许可。回答要包含肯定(Yes/Sure...)或否定(No/Sorry...)，并根据具体情境表达。 *将含有can的句子改为特殊疑问句时，首先在句首加上特殊疑问词，然后把can提至疑问词之后，句点改为问号。 四、易错练习： 1、 根据图片和首字母提示, 写单词补全句子。 1. There are some new class r________. 2. Turn off the l________after class. 3. Don't run in the c________. 4. Don't be l________for class. 5. T________on the teacher's computer before class. 6. We can't listen to m________loudly in the library. 7. You can see a map of the library on the w________. 8. On hot days, we use a f________to keep cool. 9. The d________is amazing. It can open and close by itself. 10. The library has a floor-to-ceiling(落地) w________. 2、 用所给词的适当形式填空。 1 . Let’s ________ (turn) off the lights after school. 5 . Let’s________ (clean) the window together.clean 3 . I can________ (hand) out the workbooks to my classmates. 4 . They________ (tidy) their desks every morning. 5 . There ________ (be) some newspapers on the teacher’s desk. 6 . The boy ________ (open) the door for his teacher now. 7 . She likes ________ (listen) to music after class. 8 . _________ (we) classroom is on the second floor. 9 . There are three ________(chair) near the blackboard. 10 .________ (hurry) up! The class will start in five minutes. 三、按要求完成下面各题。 1. Can I take this apple? (作否定回答) ________, ________ ________. 2. We can turn off the lights(. 变为否定句) We ________ ________ ________ the lights. 3. I can put back the chairs. (改为一般疑问句并作肯定回答) —________ ________ ________ back the chairs? —________, ________ ________. 4. He can dance. (对画线部分提问) ________ ________ he ________? 5 . Let’s clean the window. (改为同义句) ________ ________ cleaning the window? 6. Can they prepare the class snacks? (改为肯定句) ________ ________ prepare the class snacks. 7 . Keep the blackboard clean. (改为否定祈使句) ________ ________ the blackboard clean. 8. This is a new desk. (改为复数句) ________ ________ new________ . 9.on, Who, duty, today, is (？) (连词成句) ___________________________________________ 10.the, hand, of , us, out, Some, workbooks (.) (连词成句) ___________________________________________ 四、单项选择。 ( ) 1.You can’t be late________school. A.to B.at C.for ( ) 2.Don’t________here! It’s not safe(安全的). A.swim B.swimming C.swims ( ) 3.—________on duty today? —I am. A.Who B.Who’s C.Whose ( ) 4.________we meet teachers in the morning，we say，“Good morning!” A.When B.What C.Where ( ) 5.I can put back the________and chairs. A.desks’ B.desks C.desk’s ( ) 6. —Sorry! I ________ late. —It's OK. Don't ________ late again. A. be; be B. am; be C. am; being ( ) 7. Hurry up! Let's ________. The school bus ________ at 7:30. A. go; go B. going; going C. go; goes ( ) 8. —Excuse ________? I don't understand. — OK. ________ can say it again. A. me; I B. I; I C. my; I ( ) 9. —How can I be a ________ hand? —You can ________ the teacher hand out the books. A. helping; help B. help; helping C. helps; help ( ) 10. —You can't take ________ to school. —This is not a ________. It's a pencil box. A. toys; toys B. toy; toys C. toys; toy 参考答案： 一、 1.rules 2.lights 3.classroom 4.late 5.Turn 6.music 7.wall 8.fan 9.door 10.window 二、 1. turn 2. clean 3. hand 4. tidy 5. are 6. is opening 7. listening / to listen 8. Our 9. chairs 10. Hurry 三、 1.No;you can’t 2.can’t urn off 3.Can you put;Yes;I can 4.What can;do 5.What about 6.They can 7.Don;t keep 8.These are;desks 9.Who is on duty today? 10.Some of us hand out the workbooks. 四、 1.C 2.A 3.B 4.A 5.B 6.B 7.C 8.A 9.A 10.C 学科网（北京）股份有限公司 $