内容正文:
Unit 2语法精讲精练
一般现在时实义动词 + 名词所有格(’s)
一、核心语法 1:一般现在时(实义动词 do/does 型)
(一)基本概念
一般现在时用来描述经常性、习惯性动作、爱好、日常活动,常搭配 every week /often/usually /always 等时间词。
实义动词:play, love, have, spend, make, talk, like 等有实际动作含义的动词,分主语第三人称单数和非三单两种变形。
(二)动词三单变化规则(主语 he/she/it/ 单个人名、单数名词)
一般动词直接加 - s:play → plays;look → looks
s /x/ch /sh/o 结尾加 - es:watch-watches;go-goes;pass-passes
辅音字母 + y 结尾,变 y 为 i 再加 - es:study-studies
不规则特殊变化:have → has
(三)人称区分
主语类型
肯定句动词
否定结构
一般疑问结构
I / you / we / they
动词原形
don’t + 动词原形
Do + 主语 + 动词原形
he /she/it / 单人名词
动词 + s/es
doesn’t + 动词原形
Does + 主语 + 动词原形
(四)四种标准句式
1. 肯定句
① 非三单:主语 + 动词原形
例:Teng Fei and his grandpa play ping-pong every week.
② 三单:主语 + 动词三单
例:Teng Fei’s grandpa loves sport. / His father has a fishing rod.
2. 否定句
don’t = do not;doesn’t = does not
I don’t play the piano.
My father doesn’t spend much time fishing.
3. 一般疑问句
Do you play the piano? — Yes, I do. / No, I don’t.
Does your father spend a lot of time fishing? — Yes, he does. / No, he doesn’t.
⚠ 重点:助动词 does 提前,后面动词必须还原为原形!
4. 特殊疑问句(whose 谁的)
Whose + 名词 + be 动词…? Whose piano is this? It’s my mother’s.
(五)课文例句精讲
Teng Fei and his grandpa play ping-pong every week.
(两个人并列主语,复数,play 用原形)
Teng Fei’s grandpa loves sport.(grandpa 单数,love 变三单 loves)
They have some nice ping-pong bats.(they 复数,have 原形)
Teng Fei’s father has a fishing rod.(father 三单,have 变 has)
(六)高频易错点
两个人名用 and 连接作主语,属于复数,动词不加 s
Teng Fei and Peter like sports.(√ likes ×)
does 后面动词一定还原原形:Does he play(√ plays ×)
have 三单固定为 has,无 haves 写法
二、核心语法 2:名词所有格 ’s(表示 “…… 的”)
1. 用法分类
① 单数人名 / 单数名词:直接加 ’s
Kate → Kate’s cat 凯特的猫
Teng Fei → Teng Fei’s schoolbag
mother → mother’s piano
② 多个人共有一样物品:最后人名加 ’
Peter and Emma’s classroom 彼得和艾玛共用的教室
③ 多个人分别拥有,每个人后都加 ’s
Peter’s and Emma’s desks 两人各自的课桌
④ 复数名词以 s 结尾:只加 ’
brothers → brothers’ balls
grandparents → grandparents’ caps
2. 问答句型 Whose…? 谁的……?
—Whose caps are these?—They’re my grandparents’.
—Whose schoolbag is this?—It’s Teng Fei’s.
3. 对比区分
my mother’s(名词所有格)= her(形容词性物主代词)
3、 两大语法综合对比
语法
核心标志
关键变形
实义动词一般现在时
every week/often
三单 + s/es,does 后还原动词
名词所有格 ’s
表示所属
单数’s;复数 s 只加撇;共有人名末尾加’s
专项分层训练
专项一 3a 识别变形(划出动词,标注原形 / 三单)
1. Teng Fei and his grandpa play ping-pong every week.
2. Teng Fei’s grandpa loves sport.
3. They have some nice ping-pong bats.
4. Teng Fei’s father has a fishing rod.
5. Do you play the piano?
6. Does your father spend a lot of time fishing?
专项二 3b 名词所有格填空(用括号词正确所有格形式)
1. This is ________ (Kate) cat. It likes fish very much.
2. This is ________ (Peter and Emma) classroom. They love their big and clean classroom.
3. These are my little ________ (brothers) balls. They play with them in the playground every day.
4. A: Whose caps are these? B: They’re my ________ (grandparents).
5. A: Whose schoolbag is this? B: It’s ________ (Teng Fei).
专项三 3c 短文动词变形(be, like, look, make, play, talk, have)
I have a brother and a sister. My brother is tall, and he ________ short hair. He is really funny, and he often ________ us laugh. My sister ________ very different. She is short, and she has long brown hair. She really ________ reading. I’m not tall or short. I don’t ________ or read much. But I ________ the violin really well. I also like playing tennis. We ________ all different, but we have a lot of fun together.
专项四 单项选择
( )1. My grandpa ____ ping-pong every Sunday.
A. play B. plays C. playing
( )2. Teng Fei and I ____ fishing after school.
A. like B. likes C. likes
( )3. His father ____ a new fishing rod.
A. have B. has C. having
( )4. —____ your mum like music? —Yes, she ____.
A. Do; do B. Does; does C. Does; do
( )5. These are my ____ balls.
A. brother B. brothers C. brothers’
( )6. This classroom is ____ Peter and Emma.
A. Peter and Emma’s B. Peter’s and Emma’s
( )7. —Whose piano is it? —It’s my ____ (mum).
A. mum B. mum’s C. mums
( )8. They ____ not play the violin after class.
A. do B. does C. are
( )9. Does your sister ____ reading books?
A. like B. likes C. liked
( )10. My grandparents ____ black caps.
A. wear B. wears C. wearing
专项五 句型转换(肯定 / 否定 / 一般疑问 / 特殊疑问)
Teng Fei’s grandpa loves sports.(改为否定句)
Teng Fei and his grandpa play ping-pong every week.(一般疑问句并作答)
His father has a fishing rod.(一般疑问句)
This is Kate’s cat.(对 Kate’s 提问)
They have nice ping-pong bats.(用 he 替换主语改写句子)
专项六 句子改错(划出错误并改正)
Teng Fei and his grandpa plays ping-pong every week. ____________
Does your father spends time fishing? ____________
This is Kate cat. ____________
These are my brother’s balls.(多个兄弟)____________
He have a new fishing rod. ____________
专项七 完成句子(时态 + 名词所有格结合)
滕飞和爷爷每周打乒乓球。
Teng Fei and his grandpa ____ ping-pong every week.
滕飞的爸爸有一根鱼竿。
Teng Fei’s father ____ a fishing rod.
这是凯特的小猫。
This is ____ cat.
这是彼得和艾玛共用的教室。
This is ____ classroom.
— 这是谁的书包?— 是滕飞的。
—____ schoolbag is this? —It’s ____.
专项八 口语问答写作(3d 任务)
仿照例句写 5 组问答,介绍家人爱好:
例:
—Do you have any sisters or brothers?
—Yes, I have a brother.
—Does your father play any sport?
—He plays ping-pong every weekend.
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