内容正文:
初中语法沪教上海版
【动词时态专版】
A版知识点全解
语法专版
一般现在时:be动词/实义动词用法
第三人称单数变化、表经常性/习惯性动作
考频分析
沪教上海版初中中,一般现在时是动词时态的基础语法点,考频占动词时态总量的30%左右,涉
及试卷多个核心题型:单项选择(2-3题)、完形填空(2-3题)、语法填空(1-2题)、书面表达(基
础考察,影响句子时态准确性)。在语境理解类题目中,b动词与实义动词的正确使用、第三人称
单数变化及表经常性/习惯性动作的语境判断往往是解题关键。
考查内容
·动词形式变化:be动词(am/is/are)的人称匹配、实义动词原形与第三人称单数(加-s-es)的变化
规则
·核心用法辨析:表经常性/习惯性动作(常与always/often等频度副词连用)、表客观事实或真理的
语境识别
·句式转换应用:肯定句、否定句(be动词+not/助动词don't/doesn't+动词原形)、疑问句(be动词/助
动词置于句首)的结构转换
知识点一:一般现在时的核心用法及动词变化规则
1.be动词的用法及句式转换
。人称对应:Iam/You are/He/She/Itis/We/You/They are
。否定句:直接在be动词后加not(例:She is not a student..)
。疑问句:将be动词提至句首(例:Are they from China?)
2.实义动词的基本用法
●表经常性/习惯性动作:常与always,usually,often,sometimes,,every day等时间状语连用
。肯定句结构:
l.主语(非三单)+动词原形(例:I play basketball every weekend.)
2.主语(三单)+动词三单形式(例:She reads books in the evening.)
初中语法沪教上海版
【动词时态专版】
A版知识点全解
3.第三人称单数动词变化规则
。一般情况:加-s(例:work→vorks,eat→eats)
●以s,X,sh,ch或o结尾:加-es(例:wash→vashes,g0→goes)
·以辅音字母+y结尾:变y为i加-es(例:study→studies,fly→flies)
。不规则变化:have→has
4.否定句与疑问句(实义动词)
·否定句:主语(非三单)+don't+动词原形;主语(三单)+doesn't+动词原形(例:He doesn't
like coffee.
。疑问句:Do+主语(非三单)+动词原形?Does+主语(三单)+动词原形?(例:Do they go
to school by bus?)
知识点二:一般现在时的核心用法与易错点
1.常态与客观真理的表达
·自然现象与科学事实
例句:Water boils at100℃.(水在100摄氏度沸腾)
The moon goes around the ear'th.(月亮绕着地球转)
·固定状态描述
例句:My brother is a doctor.(职业状态)
This street faces south.(方位特征)
2.第三人称单数变化规则
·一般动词直接加-s:work-works,.play-plays
。以s/x/sh/ch/o结尾加-es:wash-→vashes,.go→goes,watch→watches
。辅音+y结尾变y为i加-es:study→studies,fly→flies
。特殊变化:have→has
3.否定句与疑问句结构
·否定句
be动词:主语+am/is/are+not+表语
例句:She is not a teacher.
实义动词:主语+don't/doesn't+动词原形
例句:They don't live here.He doesn't like coffee.
·疑问句
be动词:AmIs/Are+主语+表语?
例句:Is this your book?
实义动词:Do/Does+主语+动词原形?
例句:Do you often exercise?Does he walk to school?
初中语法沪教上海版
【动词时态专版】
A版知识点全解
4.时间标志词特殊用法
·无时间词表常态
例句:Birds fly..(客观能力)
。频率副词位置
放在be动词后,实义动词前
例句:He is always late.She often reads novels.
5.主谓一致易错点
。集合名词做主语
强调整体用单数:The family is big.
强调个体用复数:The family are having dinner.
·不定代词做主语
someone/everyone/everything等用单数
例句:Everyone likes music..Something is wrong here.
·就近原则
There be句里:There is a book and two pens..
知识点三:一般现在时特殊句型与时间状语
1.特殊疑问句结构
疑问词+be动词/助动词do/does+主语+其他(中考必掌握):
。What+be+主语?→例句:What is your favorite subject?
●Where+do/does+主语+动词原形?→例句:Where does she live?
。How often+do/does+主语+动词原形?→例句:How often do you exercise?
·Why+do/does+主语+动词原形?→例句:Why does he late for school?
2.频率副词的位置与用法(中考常考)
。频率副词位于be动词后:She is always happy
·频率副词位于实义动词前:He usually gets up at6:30
。常见频率副词(按频率从高到低):always(总是)→usually(通常)→often(经常)→sometimes
(有时)→seldom(很少)→never(从不)
→例句:They often play football on weekends.
3.客观真理与科学事实(中考易错)
。表述客观真理用一般现在时:The earth goes around the sun.
。科学常识或规律:Light travels faster than sound,
●名言警句:Practice makes perfect..
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初中语法沪教上海版
【动词时态专版】
A版知识点全解
考法精析
考法一:be动词用法辨析
核心:根据主语人称和数,选择正确的be动词形式(a/is/are)并完成否定句、疑问句转换
真题1(语法填空):
My parents-(be)teachers.They work in a middle school.
答案:are
解析:主语My parents为复数,be动词用are,表示状态。
真题2(单项选择):
-your brother at home now?
A Am BIs C Are DBe
答案:B
解析:主语your brother为第三人称单数,be动词用is,疑问句将is提前至句首。
考法二:实义动词第三人称单数变化
核心:掌握规则变化(加-s/-es/变y为i加-es)和不规则变化(have一→has),正确写出动词三单形式
真题1(语法填空):
She usually_(wash)her clothes on weekends.
答案:washes
解析:主语sh为第三人称单数,wash以sh结尾,三单形式加-es。
真题2(单项选择):
My father_two brothers and one sister.
A have B has C is having Dhad
答案:B
解析:表示客观事实用一般现在时,主语my father为三单,have的三单形式为has。
考法三:时间状语搭配
核心:根据时间状语判断动作是否为经常性/习惯性,选择正确时态及动词形式
真题1(语法填空):
They_(play)basketball every Friday afternoon.
答案:play
解析:时间状语every Friday afternoon表示习惯性动作,主语they为非三单,动词用原形。
真题2(单项选择):
-How often does your mother go shopping?
She goes shopping-
A yesterday B next week C twice a month D in 2023
答案:C
解析:how often提问频率,twice a month(每月两次)是一般现在时的典型频率状语;ABD分别
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初中语法沪教上海版
【动词时态专版】
A版知识点全解
对应过去时将来时/过去时。
考法四:句型转换
核心:掌握实义动词的否定句(don't/doesn't+动词原形)和疑问句(Do/Does+主语+动词原形)转
换规则
真题1(句型转换):
Tom usually walks to school..(改为否定句)
答案:Tom doesn't usually walk to school.
解析:主语Tom为三单,否定句用doesn't,动词walk还原为原形。
真题2(单项选择):
-your parents watch TV in the evening?
ADo B Does CAre DIs
答案:A
解析:实义动词watch的疑问句需用助动词,主语your parents为非三单,助动词用Do。
考法五:特殊用法辨析
核心:识别客观真理、时间/条件状语从句中一般现在时的特殊应用
真题1(语法填空):
Light_(travel)faster than sound.
答案:travels
解析:客观真理用一般现在时,主语light为三单,动词加-s。
真题2(单项选择):
If it tomorrow,we will not go to the park.
Arain Brains Cwill rain Drained
答案:B
解析:if引导条件状语从句表将来,从句用一般现在时,主语it为三单,动词rain加-s。
解题小妙招
be动词用法看主语,I用am你用are,is跟着他她它,复数主语都用are:
变否定be后加not,变疑问be提前,句末问号莫忘记。
实义动词三单变化有规则,一般情况直接加-$:
s,X,ch,sh结尾加-es,辅音加y变i再加-es:
have特殊变has,其余动词原形跟非三单。
时间状语辨时态,usually,.often,.every day是标志;
客观真理永不变,条件时间从句也适用:
频率提问how often,twice a month最常见。
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初中语法沪教上海版
【动词时态专版】
A版知识点全解
句型转换有技巧,实义动词否定加don't/doesn't,动词原形要还原:
疑问句首Do/Does加,主语之后原形跟,句末问号别落下。
综合运用看语境,b动实义要分清,时态一致是关键。
真题演练
演练一:单项选择试题(共10题)
1.My sistera student.She studies in No.1 Middle School.
Aam Bis Care Dbe
2.-your parents usually go to work by car?
ADo B Does CAre DIs
3.HeTV every evening,but now he-books.
A watch;read B watches;reads C watches;is reading D watched;reading
4.Light_faster than sound.
A travel B travels Ctraveled D will travel
5.If ittomorrow,wehave a picnic.
A rain;won't B rains;don't Crains;won't D will rain;won't
6.My brother often basketball with his friends on weekends.
A play B plays Cplayed Dis playing
7.-How often does Mary go swimming?
-She goes swimming-.
A yesterday B next Sunday C twice a month D in 2024
8.-your English teacher from America?
A Am BIs CAre DBe
9.She_like coffee.She prefers tea.
A don't B doesn't C isn't Daren't
10.When the bell,the students usually go into the classroom.
Aring B rings Crang Dwill ring
演练二:填空试题(共10题)
1.My mother_(wash)clothes every Saturday.
2.They_(not be)in the classroom now.They are in the library.
3.Tom_(study)hard every day because he wants to be a doctor.
4.-(do)your father usually read newspapers after dinner?
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初中语法沪教上海版
【动词时态专版】
A版知识点全解
5.The Earth_(go)around the sun.
6.She(have)two brothers and one sister.
7.We(play)football on the playground every Friday afternoon.
8.My grandparents_(not watch)TV in the evening.They like listening to the radio.
9.If he(come)tomorrow,I(call)you.
10.The students(be)happy because today is Children's Day.
演练三:语法填空试题(共10空)
Li Ming is a student in Grade 7.He(live)with his parents in Shanghai.Every morning,he-(get)up
at 6:30 a.m.and_(have)breakfast at 7:00 a.m.His school_(start)at 8:00 a.m.,so he usually_(go)to
school by bike.
Li Ming(like)English very much.He often(read)English books in the evening.His English teacher
(be)Miss Wang.She(teach)very well,and all the students-(love)her.On weekends,Li Ming
sometimes-(play)basketball with his friends.He_(think)playing basketball is good for his health.
答案区
演练-:1B2.A3.C4.B5.C6B7.C8B9.B10.B
1.washes 2.are not/aren't 3.studies 4.Does 5.goes 6.has 7.play 8.don't watch 9.comes;will call
10.are
1.lives 2.gets 3.has 4.starts 5.goes 6.likes 7reads 8.is 9.teaches 10.love 11.plays 12.thinks
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