内容正文:
知识清单·沪教版五四制一年级上册
Unit 4 My classroom
知识梳理
知识点拨
【考点一】教室物品类名词 【考点二】“Let sb. do sth.” 句型
【考点三】值日相关的日常对话 【考点四】祈使句
考点一:教室物品类名词
教室场景中常见物品的英文表达是单元基础,也是日常描述教室环境、开展清洁活动的核心词汇,需准确记忆拼写与含义。
英文单词
中文含义
常见搭配
例句
blackboard
黑板
clean the blackboard(擦黑板)
Let me clean the blackboard.(让我来擦黑板。)
door
门
open the door(开门);close the door(关门)
Please close the door.(请关上门。)
desk
书桌;课桌
clean the desk(擦课桌);on the desk(在课桌上)
My book is on the desk.(我的书在课桌上。)
chair
椅子
clean the chair(擦椅子);under the chair(在椅子下面)
The pen is under the chair.(钢笔在椅子下面。)
floor
地板
clean the floor(扫地;擦地板);on the floor(在地板上)
Let's clean the floor together.(我们一起扫地吧。)
【大显身手】
一、根据中文提示,写出对应的英文单词
1.黑板__________ 2.门 __________ 3.课桌__________
3.椅子 __________ 4.地板 __________
二、单项选择题
( )1. —Where is my pencil?—It's on the ______.
A. blackboard B. desk C. door
( )2. Let's clean the ______. It's dirty.
A. floor B. chair C. door
( )3. Please open the ______. It's hot in the classroom.
A. desk B. door C. blackboard
考点二:“Let sb. do sth.” 句型
该句型是本单元表达 “提议做某事”“主动提供帮助” 的核心结构,常用于打扫教室、互助活动等场景,语气积极,强调行动意愿。
核心结构:Let + 主语(me/you/him/her/us/them)+ 动词原形 + 其他
Let me...(让我……):用于主动提出自己做某事,如 “Let me clean the desk.”(让我来擦课桌。)
Let's...(让我们……):“Let us” 的缩写,用于提议双方一起做某事,如 “Let's clean our classroom.”(我们一起打扫教室吧。)
用法注意:
句型中 “let” 后接人称代词时,需用宾格形式(me, you, him 等),不能用主格(I, he, she 等);
“let” 后面的动词必须用原形,不能加 “s/es” 或 “ing”,如不能说 “Let me cleans the chair.”。
常见应答:
接受提议:“OK!”“Great!”“Good idea!”
主动帮助时的回应:“Thank you!”(感谢);“Let me help you.”(回应帮助,表互助)
【大显身手】
一、判断句子是否正确,对的打 “√”,错的打 “×” 并改正
1.Let I clean the blackboard.( )改正:________________________
2.Let's clean the floor.( )改正:________________________
3.Let him cleans the chair.( )改正:________________________
二、根据场景仿写句子
1.场景:你想主动擦黑板 仿写:________________________
2.场景:你提议和同学一起擦椅子 仿写:________________________
3.场景:同学在扫地,你想帮忙 仿写:________________________
考点三:值日相关的日常对话
本单元围绕 “Who's on duty?(谁值日?)” 展开值日场景的交际,核心是询问值日人员、安排值日任务的简单对话,需掌握问答逻辑和任务表达。
核心问句:Who's on duty today?(今天谁值日?)
用法:用于询问当天负责值日的同学,“on duty” 表示 “值日;值班”,是固定搭配。
答句:Me!(我!)/ Tom is on duty today.(今天汤姆值日。)
值日任务表达:
Let me clean the blackboard.(让我来擦黑板。)
Let me clean the floor.(让我来扫地。)
Let me put the books back.(让我把书放回去。)
互助场景对话:
A: Oops!(哎呀!/ 糟糕!,用于出现小意外,如书掉了)
B: Let me help you.(让我来帮你。)
A: Thank you.(谢谢你。)
【大显身手】
1、 补全对话A. Who's B. Me C. Let me
A: Good morning, class. 1. ______ on duty today?
B: 2. ______!
A: That's good. What can you do for the classroom?
B: 3. ______ clean the floor.
2、 根据对话内容,选择正确答案
A: Who's on duty today, Lucy?
B: Me! I will clean the desk.
A: Let me help you, Lucy.
B: Thank you so much, Mike.
( )1. Who's on duty today?
A. Lucy B. Mike C. Tom
( )2. What will Lucy do?
A. Clean the floor B. Clean the desk C. Clean the blackboard
( )3. What does Mike say to help Lucy?
A. Let me help you. B. Thank you. C. Oops!
考点四:祈使句
围绕本单元祈使句主要用于 “指令清洁动作”“提醒注意事项”,分为肯定和否定两种形式,语言简洁,直接作用于行动。
肯定祈使句:
结构:动词原形 + 其他(表 “让某人做某事”)
例句:Clean your desk.(擦你的课桌。);Put the books back.(把书放回去。)
用法:用于明确告知对方要做的清洁动作,语气直接但友好。
否定祈使句:
结构:Don't + 动词原形 + 其他(表 “不要做某事”)
例句:Don't make the floor dirty.(不要把地板弄脏。);Don't forget to clean the chair.(别忘了擦椅子。)
用法:用于提醒对方避免破坏教室卫生的行为,语气委婉。
关键规则:
祈使句无主语(默认主语是 “you”),开头必须用动词原形;
否定祈使句只能用 “don't”(不能用 “doesn't” 或 “didn't”),后接动词原形。
【大显身手】
1、 选择合适的祈使句补全句子
( )1. ______ clean the floor. It's time for cleaning.
A. Let's B. Don't C. What's
( )2. ______ make noise in the classroom. We are cleaning.
A. Let's B. Don't C. Do
( )3. ______ put the books on the desk. Don't put them on the floor.
A. Don't B. Let's C. Please
综合训练
一、单项选择题
( )1. —What's this in English? —It's a ______. We can sit on it.
A. desk B. chair C. blackboard
( )2. Let ______ help you clean the door.
A. I B. me C. my
( )3. —Who's on duty today? —______ is on duty.
A. Tom B. Me C. Her
( )4. ______ clean the desk together. It's dirty.
A. Don't B. Let's C. What
( )5. —Thank you for helping me clean the blackboard.—______
A. Oops! B. You're welcome. C. Me!
( )6. Don't ______ the floor dirty. We just cleaned it.
A. make B. makes C. making
( )7. —Where is the book?—It's ______ the desk.
A. in B. on C. under
( )8. Let me ______ the books back. They are on the chair.
A. put B. puts C. putting
( )9. —What can we do for the classroom?—We can ______ the chair.
A. clean B. cleans C. cleaning
( )10. —Is this a desk?—______ It's a chair.
A. Yes, it is. B. No, it isn't. C. No, it is.
二、根据括号内提示,用所给词的正确形式填空
1.Let's ______ (clean) the classroom. It's time for cleaning.
2.—Who's on duty today?— ______ (I)
3.Don't ______ (make) the desk dirty. Please keep it clean.
4.Let ______ (she) help you. She is good at cleaning.
5.My friend and I ______ (clean) the floor every Friday.
三、从方框中选择合适的单词,补全句子(每词限用一次)blackboard door floor chair desk
1.Let's clean the ______. We can write on it.
2.Please open the ______. It's cold in the classroom.
3.The pen is on the ______. Please put it in your bag.
4.Sit on the ______. Let's start our class.
5.The ______ is dirty. Let's sweep it.
四、将 A 栏的句子与 B 栏的答句用线连起来
A 栏
B 栏
1. Who's on duty today?
A. It's a chair.
2. What's this in English?
B. Let's clean the desk.
3. What can we do for the classroom?
C. Me!
4. Thank you.
D. Let me help you.
5. Oops!
E. You're welcome.
参考答案
考点一:
一、1. blackboard 2. door 3. desk 4. chair 5. floor
二、1. B 2. A 3. B
考点二:
一、1. × Let me clean the blackboard.
2.√
3. × Let him clean the chair.
二、1. Let me clean the blackboard.
2.Let's clean the chairs.
3. Let me help you sweep the floor.
考点三:
一、1. A 2. B 3. C
二、1. A 2. B 3. A
考点四:
1.A 2. B 3. C
【综合训练】
一、1. B 2. B 3. A 4. B 5. B 6. A 7. B 8. A 9. A 10. B
二、1. clean 2. Me 3. make 4. her 5. clean
三、1. blackboard 2. door 3. desk 4. chair 5. floor
四、1.C 2.A 3.B 4.E 5.D
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