内容正文:
Unit 1 Helping at home
专题02 语法提升·易错题专项训练
句型、语法
语法提升
高频易错点、易错点提示、小练笔、答题点拨
易错精讲
询问职业两组同义句型转换(拔高)高频易错点01
基础句型 1:—What's your father's job? —He's a ...
同义拓展句型 2:—What does your father do? —He's a ...
两个句型表意完全相同,可互换,考试必考转换
例句:
—What's your mother's job? = What does your mother do?
—She's a nurse.
易错点提示
1. What's 后接名词所有格(your father's job);What does 后直接接主语(your father),结构不能混搭
错误:What does your father's job do? ✖
正确:What's your father's job? / What does your father do? ✔
2. 主语为第三人称单数(father/mother/he/she),助动词用 does,后面动词用原形 do
小练笔
改错 + 句型转换
1. 改错:What does your father's job do? (写出正确句子)
2. 同义句转换:What's your mum's job?
3. 同义句转换:What does your grandpa do?
4. 仿写句型 1:询问叔叔的职业
5. 仿写句型 2:询问阿姨的职业
点
拨
1.本句出现句型混搭错误,What does 结构后面直接跟人物主语,不能带 job;What's 结构后搭配 XX's job,二者不能混用。正确句子:What's your father's job?
2.What's one's job 和 What does sb do 互为同义句,mum 对应人称代词 she,助动词用 does,转换后:What does your mum do?
3.grandpa 是男性第三人称单数,原句为 What does sb do,转换为带所有格 job 的句型:What's your grandpa's job?
4.使用 What's + 名词所有格 job 句型,示例:What's your uncle's job?
5.使用 What does + 人物句型,aunt 为三单,助动词 does,示例:What does your aunt do?
Is this...? 确认身份一般疑问句高频易错点02
句型结构:
问句:Is this + 形容词性物主代词 + 家人?
答句:Yes, it is. / No, it isn't.
改写规则:陈述句 my → 问句 your;陈述句 I/we 不变,回答问句时主语用 it 指代 this
例句:
陈述句:This is my father.→一般疑问句:Is this your father?
回答:Yes, it is. / No, it isn't.
易错点提示
1. 问句不能用 he/she 替代 this,必须用 it 作答,不能答 Yes, he is.
错误问句:Is he your father?(本单元确认照片人物用 this)
错误回答:Yes, he is. ✖ 正确:Yes, it is. ✔
2. 否定缩写只能是 isn't,不存在 is not't
小练笔
句型转换
1.This is my mother.(改为一般疑问句)
2.Is this your sister?(写出完整否定回答)
3.This is my PE teacher.(改为一般疑问句)
4.Is this your grandpa?(写出完整肯定回答)
5.This is my factory worker dad.(改为一般疑问句)
点
拨
1. 含 be 动词的陈述句变一般疑问句,把 be 动词 is 提到句首;陈述句中的形容词性物主代词 my,在问句中统一改为 your,最终句子:Is this your mother?
2. 问句主语用 this 指代照片人物,回答时固定用 it 代替 this,否定结构为 No, it + be 动词否定缩写 isn't,完整回答:No, it isn't.
3. be 动词 is 提前,my 转换为 your,其余单词顺序不变,句子:Is this your PE teacher?
4. this 用 it 指代,肯定回答结构 Yes, it is. 注意不能省略 is,不能用 he 作答。
5. is 移至句首,my 改为 your,其余内容不变,句子:Is this your factory worker dad?
名词所有格 's高频易错点03
用法:表示 “…… 的”,后接名词
1. 单数有生命名词直接加 's:father's job 爸爸的工作;mother's job 妈妈的工作
2. 以 s 结尾复数名词加 ':parents' room 父母的房间
3. 多个名词叠加所有格,分两种情况,有共同拥有 / 各自拥有,'s 不能漏
1)多人共同拥有一件事物(只在最后一个名词加 's)
结构:A and B's + 单数名词
含义:A 和 B 共有的……
例句:
Lily and Lucy's room
莉莉和露西共用的房间(一间房,只末尾加's,不能漏)
2)多人各自拥有(每个名词后面都加 's,一个都不能漏)
结构:A's and B's + 复数名词
含义:A 的…… 和 B 的……(各自分开)
例句:
Lily's and Lucy's rooms
莉莉的房间和露西的房间(两间房,两个都要加's,漏一个就错)
易错点提示
1. 区分:you(你)/your(你的)/father's(爸爸的)三类所有格,不能混用
错误:What's you father job? ✖
正确:What's your father's job? ✔
2. 各自拥有写法错误。
❌ 错误:Lily and Lucy's rooms.(想表达各自房间却只加一个's,逻辑矛盾)
✅ 正确:Lily's and Lucy's rooms.(各自所有,两个's 缺一不可)
小练笔
单项选择
( ) 1. What's ______ dad's job?
A. you B. your C. he
( ) 2. This is my ______ room.
A. parents B. parent's C. parents'
( ) 3. ______ mother's job is nurse.
A. I B. My C. Me
( ) 4. What's ______ uncle's job?
A. your B. you C. he
( ) 5. This is ______ room.
A. Tom and Jerry B. Tom and Jerry's C. Tom's and Jerry's
点
拨
1.B 空格后有名词 dad,需要形容词性物主代词修饰;you 是人称代词主 / 宾格,he 是主格,均不能修饰名词,只有 your 符合要求。
2.C parents 是复数名词,词尾本身带有 s,表示 “父母共同的”,直接在单词末尾加',即 parents';parent's 表示单亲的房间,不符合题意。
3.B 后面搭配名词 mother,需要物主代词修饰;I 主格、me 宾格不能修饰名词,My(我的)放在句首首字母大写,选 B。
4.A 空格后有名词 uncle,需要形容词性物主代词 your 修饰;you、he 为人称代词,无法修饰名词,选 A。
5. B 句中 room 为单数,说明是两人共同拥有一间房间,只需在最后一个名词后加's,A 无所有格,C 表示两人各自的房间(需用复数 rooms),选 B。
情态动词 can 拔高综合句式(否定、疑问、划线提问)高频易错点04
核心规则:can 后永久加动词原形;人称问答互换;对动作提问用 What can ... do?
1. 肯定句:主语 + can + 动词原形
2. 否定句:主语 + can't + 动词原形(can't=cannot,无 cann't)
3. 一般疑问句:Can + 主语 + 动词原形?
回答:Yes, 主语 can. / No, 主语 can't.
4. 特殊疑问句(对家务动作划线提问):What can + 主语 + do?
例句:
肯定句:We can do housework.
否定句:We can't do housework.
一般疑问句:Can you do housework?
肯定回答:Yes, we can.
否定回答:No, we can't.
对 do housework 划线提问特殊疑问句:What can you do?
易错点提示
1. can 后动词不能加 s/ing;特殊问句必须加 do 替代动作,不能省略
错误:What can you clean? ✖ 正确:What can you do? ✔
2. 陈述句 we → 问句 you;回答还原 we
陈述句:We can sing songs.
一般疑问句:Can you sing songs?
回答:Yes, we can. / No, we can't.
小练笔
句型转换
1.We can sweep the floor.(改为否定句)
2.We can cook.(改为一般疑问句,并写出完整否定回答)
3.I can clean the room.(对划线部分提问)
4.Can you look after your sister?(写出完整肯定回答)
5.I can do some chores.(改为一般疑问句,并写出完整否定回答)
点
拨
1. 情态动词 can 变否定,直接在 can 后面加 not,缩写为 can't;can 后面的动词必须保持原形,不能变形,句子:We can't sweep the floor.
2. 陈述句变一般疑问句,情态动词 Can 提到句首;主语 we 转换为 you;否定回答时主语还原为 we,搭配 can't。问句:Can you cook? 否定回答:No, we can't.
3. 划线部分是家务动作,对动作提问固定句型 What can + 主语 + do,用 do 替代原句动作短语,I 转换为 you,问句:What can you do?
4. 问句主语为 you,作答时主语换成 I;情态动词保持 can 不变,完整肯定回答:Yes, I can.
5. can 提前,I 改为 you;否定回答主语换回 I,搭配 can't。问句:Can you do some chores? 否定回答:No, I can't.
be 动词 am/is/are 综合主谓搭配高频易错点05
口诀:I 用 am,you 用 are,he/she/this/ 单数名词用 is,we/they/ 复数名词全用 are
拓展否定句:am not /isn't /aren't,无 amn't
例句:
I am helpful. → I'm not helpful.
They are workers. → They aren't workers.
This is a doctor. → This isn't a doctor.
易错点提示
1.复数名词搭配 are,单数搭配 is,做题先判断主语单复数
2.this/that 作主语,永远用 is;these/those 用 are
小练笔
用 am/is/are 填空
1.I ______ a helpful boy.
2.This ______ my father.
3.They ______ factory workers.
4.My parents ______ busy every day.
5.She ______ a good nurse.
点
拨
1. shtu 人称代词 I 作主语,是固定搭配 am,不存在 I is、I are 的用法,属于基础固定搭配。
2.is this 是单数指示代词,指代单个事物 / 人物,单数主语搭配 be 动词 is。
3.are they 他们,是复数人称代词,复数主语统一搭配 be 动词 are。
4.are parents 父母,两个人,属于复数名词,复数主语使用 are。
5.is she 她,第三人称单数人称代词,单数主语搭配 be 动词 is。
综合训练
一、用所给词正确形式填空
1.I ______ (be) helpful at home.
2.It ______ (be) my grandpa's room.
3.She can't ______ (sweep) the floor.
4.What ______ (can) you do for your family?
5.My parents ______ (be) busy.
6.I have two ______ (child).
二、句型转换
1.I am helpful. (同义句) ______ ______ helpful.
2.My father's job is doctor. (划线提问) ______ ______ father's job?
3.I can do some chores. (否定句) I ______ ______ some chores.
4.I can clean the room. (一般疑问句) ______ ______ clean the room?
5.This is my mother. (一般疑问句) ______ ______ your mother?
三、单项选择
( ) 1. —Is this your uncle? —Yes, .
A. I am B. it is C. he is
( ) 2. Can you ______ after your sister?
A. looks B. look C. looking
( ) 3. He ______ a doctor. We______ workers.
A. is; are B. are; is C. is; is
( ) 4. —What's your mother's job? —.
A. Nice to meet you. B. She's a nurse. C. Sweep the floor.
( ) 5. I ______ not tired.
A. are B. am C. is
( ) 6. —What does your dad do? —.
A. He's a factory worker. B. It's OK. C. Thank you.
( ) 7. She ______ cook nice food.
A. is B. can C. cans
( ) 8. I have two ______.
A. child B. children C. an child
( ) 9. What's ______ job?
A. your father B. your father's C. you father
( ) 10. I can ______ the floor.
A. sweep B. sweeps C. sweeping
四、句子排序
( ) No, it isn't. My father is a doctor.
( ) Hello! This is my family photo.
( ) Is this your father?
( ) What's your father's job?
( ) He helps sick people.
五、情景对话补全(选句子)
A: Hello! Look at my family photo. 1.______
B: Is this your father?A. What's your mother's job?
B. Yes, it is.
C. I'm helpful at home.
D. Yes, I can.
E. This is my family.
A: 2.______ He's a factory worker.
B: 3.______
A: She's a nurse.
B: What can you do at home?
A:4.______ I can sweep the floor and cook.
B: You are helpful! Can you look after your little sister?
A: 5.______
六、选词填空cook, chores, help, worker, busy
I'm helpful at home.
I'm helpful at home. My father is a factory 1. ____. He is 2. ____every day. I can 3. ____ nice food. I do some 4.____ after school. I 5. ____ my parents. We love each other.
参考答案
一、用所给词正确形式填空
1. am 2.is 3.sweep 4.can 5.are 6.children
【解析】
1. 主语 I 搭配固定 be 动词 am,是基础固定搭配;
2.it 为单数指示代词,单数主语 be 动词用 is;
3.can't 是情态动词否定形式,后面必须使用动词原形,不能变形;
4.What can you do 是单元固定询问能力句型,情态动词用原形 can;
5.parents 父母是复数主语,复数主语统一搭配 be 动词 are;
6. 数词 two 表示两个,后面名词用复数,child 不规则变形为 children。
二、句型转换
1.I'm / I am
2.What's your
3.can't do
4.Can you
5.Is this
【解析】
1.I am 可以缩写为 I'm,二者表意完全一致,属于同义改写;
2. 询问他人职业固定句型 What's your father's job,my 转换为 your;
3. 情态动词 can 变否定直接加 not 缩写 can't,后面动词 do 保持原形;
4. 含 can 的陈述句变一般疑问句,Can 提前,主语 I 转换为 you;
5.be 动词 is 提到句首构成疑问,my 改为形容词性物主代词 your;
6. 肯定祈使句改为否定,句首加 Don't,后面动词使用原形 clean。
三、单项选择
1.B 2.B 3.A 4.B 5.B 6.A 7.B 8.B 9.B 10.A
【解析】
1. 问句用 this 指代照片人物,回答统一用 it 代替 this,不能用 he,选 it is;
2.can 是情态动词,后面只能搭配动词原形 look,三单、动名词均错误;
3.he 是单数主语搭配 is,we 复数主语搭配 are,对应 A 选项;
4.What's your mother's job 询问职业,答句需要回答对应工作,B 选项符合;
5. 主语 I 固定搭配 be 动词 am,无 I are、I is 用法;
6.What does your dad do 用来询问爸爸职业,A 选项回答工厂工人,匹配问句;
7.can 为情态动词,没有 cans 变形;is 后不能直接接动词原形,选 can;
8.two 后接可数名词复数,child 复数为 children;
9. 表示 “爸爸的工作” 需要名词所有格 your father's,其余结构均错误;
10.can后面接动词原形 sweep。
四、句子排序
3 - 1 - 2 - 4 - 5
【解析】
1.Hello! This is my family photo. 对话开场,拿出全家福作为话题起点;
2.Is this your father? 指着照片里的男性,发起确认身份的提问;
3.No, it isn't. My father is a doctor. 对上一句问句做出否定回答,说明爸爸职业;
4.What's your father's job? 继续追问爸爸的工作内容;
5.He helps sick people. 补充说明医生的工作职能,收尾对话。
五、情景对话补全
1.E 2.B 3.A 4.C 5.D
【解析】
1. 前文展示全家福,对应介绍 This is my family,选 E;
2. 问句 Is this your father,需要肯定回答 Yes, it is,选 B;
3. 后文答句 She's a nurse,说明问句是询问妈妈的职业,对应 A 选项;
4. 后文介绍自己会扫地、做饭,对应句子 I'm helpful at home,选 C;
5. 问句是以 Can you 引导的一般疑问句,肯定回答 Yes, I can,选 D。
六、选词填空
1.worker 2.busy 3.cook 4.chores 5.help
【解析】
1.factory worker 工厂工人,固定职业短语,空前 a 搭配单数名词;
2.be busy 固定搭配,意为忙碌的,形容词作表语描述父亲状态;
3.can 后接动词原形 cook,cook nice food 做美味的饭菜;
4.do some chores 做家务,单元固定短语,some 后接复数 chores;
5. 主语 I,一般现在时动词原形 help,help my parents 帮助父母。
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