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教学课件
译林英语七年级上册
Unit8 语法专项——现在进行时(Present continuous tense)
全解精讲+分层练习
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学习目标
1 掌握现在进行时的核心定义及两大适用场景
2 熟记现在进行时肯定、否定、疑问的完整句式
3 熟练掌握动词-ing形式的4种变化规则及易错点
4 能准确识别时态标志词,灵活运用时态填空
现在进行时总述
现在进行时是七年级重点时态,用于描述“正在进行”的动作
核心本质:强调“此时此刻”或“现阶段”正在发生的动作
核心标志:有明确的时间标志词(now, look, listen等)
关键特征:句子中必须有am/is/are + 动词-ing形式
学习重点:两大场景+三种句式+四种动词变形规则
现在进行时定义及适用场景(一)
定义:表示此时此刻正在进行、正在发生的动作
场景1:动作正在进行中,肉眼可观察或此刻正在发生
常用标志词:now(现在)、look(看)、listen(听)
标志词用法:可放在句首、句中或句末,提醒时态
示例1:Look! They are dancing on the stage.(看!他们正在舞台上跳舞)
示例2:I am reading a book now.(我现在正在看书)
现在进行时定义及适用场景(二)
场景2:表示现阶段正在进行,但此刻不一定在做的动作
常用标志词:at the moment(此刻)、these days(这些天)
核心区别:动作持续一段时间,不是某一瞬间的动作
示例1:Our school is having a show these days.
示例2:She is learning English at the moment. 提醒:无标志词时,可根据语境判断是否用现在进行时
现在进行时核心标志词汇总
必记标志词(高频考点,优先识别):
1. 表“此刻”:now(现在)、at the moment(此刻)
2. 表“提醒观察”:look(看)、listen(听)、look at(看)
3. 表“现阶段”:these days(这些天)、this week(这周)
用法技巧:看到这些词,立刻想到用现在进行时
易错提醒:不要遗漏标志词,避免时态误用
现在进行时句式结构(肯定句)
核心结构:主语 + am/is/are + 动词-ing + 其他成分
am/is/are的选择:由主语的人称和数决定
口诀:我(I)用am,你(you)用are,is连着他(he)她(she)它(it)
复数主语(we/they/复数名词)全部用are
示例1:I am playing the piano.(我正在弹钢琴)
示例2:He is playing the violin.(他正在拉小提琴)
现在进行时句式结构(否定句)
核心结构:主语 + am/is/are + not + 动词-ing + 其他成分
否定变法:直接在am/is/are后面加not,动词-ing形式不变
常用缩写:is not = isn’t;are not = aren’t;am not无缩写
示例1:She isn’t playing the piano now.(她现在没有在弹钢琴)
示例2:We aren’t dancing at the moment.(我们此刻没有在跳舞)
易错提醒:否定时,只加not,不改变动词-ing形式
现在进行时句式结构(一般疑问句)
核心结构:Am/Is/Are + 主语 + 动词-ing + 其他成分?
疑问变法:将am/is/are提前到句首,首字母大写,句末变问号
回答规则:肯定回答用Yes, 主语 + am/is/are;否定回答用No, 主语 + isn’t/aren’t/am not
示例1:Is he playing the violin? → Yes, he is. / No, he isn’t.
示例2:Are they dancing? → Yes, they are. / No, they aren’t.
现在进行时句式结构(特殊疑问句)
核心结构:疑问词 + Am/Is/Are + 主语 + 动词-ing + 其他成分?
常用疑问词:what(做什么)、where(在哪里)、who(谁)、how
回答规则:不能用Yes/No,需用完整句子回答具体内容
示例1:What is she doing? → She is playing the piano.(她正在弹钢琴)
示例2:Where are they dancing? → They are dancing on the stage.
易错提醒:疑问词后必须跟am/is/are,不能直接跟主语
现在进行时四种句式汇总表
句式类型 核心结构 示例
肯定句 主语 + am/is/are + 动词-ing + 其他 He is reading.
否定句 主语 + am/is/are + not + 动词-ing + 其他 He isn’t reading.
一般疑问句 Am/Is/Are + 主语 + 动词-ing + 其他? Is he reading?
特殊疑问句 疑问词 + Am/Is/Are + 主语 + 动词-ing + 其他? What is he doing?
动词-ing形式变化规则(一)——一般情况
规则1:大多数一般动词,直接在词尾加-ing
核心判断:动词结尾无特殊变化(无e、无ie、非元音+辅音重读)
记忆技巧:直接加,最简单,无需变形
常见示例:
walk → walking(走路)、water → watering(浇水)
cook → cooking(做饭)、eat → eating(吃)
动词-ing形式变化规则(二)——以不发音e结尾
规则2:以不发音的e结尾的动词,去e后加-ing
核心判断:e在词尾,不发音(区别于发音的e,如bee)
易错提醒:必须是“不发音的e”,发音的e不能去
常见示例:
welcome → welcoming(欢迎)、make → making(制作)
dance → dancing(跳舞)、write → writing(写)
c
动词-ing形式变化规则(三)——以ie结尾
规则3:以ie结尾的动词,变ie为y,再加-ing
核心判断:词尾直接是ie(注意区别于ei)
这类动词数量少,重点熟记2-3个高频词
常见示例:
lie → lying(躺、说谎)、tie → tying(系、捆)
die → dying(死亡)易错提醒:不要直接加-ing,必须先变ie为y
动词-ing形式变化规则(四)——元音+辅音重读闭音节
规则4:以“元音字母+辅音字母”结尾,且是重读闭音节,双写末尾辅音字母再加-ing
核心判断:1. 结尾是“元+辅”;2. 最后一个音节重读
记忆技巧:元辅重读闭,双写再加-ing
常见示例:put → putting(放)、sit → sitting(坐)
shop → shopping(购物)、get → getting(得到)
动词-ing形式变化易错点提醒
易错点1:以不发音e结尾,忘记去e,直接加-ing(×)
错例:make → makeing 正例:make → making
易错点2:以ie结尾,不变ie为y,直接加-ing(×)
错例:lie → lieing 正例:lie → lying
易错点3:非重读闭音节,盲目双写辅音(×)
错例:listen → listennig 正例:listen → listening
易错点4:辅音+元音结尾,双写辅音(×)
错例:play → playing(无需双写,play是辅+元结尾)
动词-ing形式基础练习
写出下列动词的-ing形式,注意变化规则
1. read → __________ 2. take → __________ 3. lie → __________
4. stop → __________ 5. wash → __________ 6. tie → __________
7. open → __________ 8. cut → __________ 9. dance → __________
10. run → __________ 11. write → __________ 12. sit → __________
reading
taking
lying
stopping
washing
tying
opening
cutting
dancing
running
writing
sitting
基础练习题——现在进行时填空(一)
用括号内动词的现在进行时形式填空,注意am/is/are的选择
1. I _____________ (read) a storybook now.
2. She __________ (draw) a picture at the moment.
3. They _____________ (play) football on the playground.
4. My dad __________ (wash) the car outside.
5. We ______________ (learn) English these days.
am reading
is drawing
are playing
is washing
are learning
基础练习题——现在进行时填空(二)
用括号内动词的现在进行时形式填空,结合标志词判断
1. Look! The children ____________ (sing) in the classroom.
2. Listen! Someone ____________ (knock) at the door.
3. My mum _______________ (not cook) dinner now.
4. __________ you __________ (do) your homework?
5. He _____________ (not play) the guitar. He is playing the piano.
are singing
is knocking
isn’t cooking
Are doing
isn’t playing
进阶练习题——一般疑问句及回答
1. He is playing basketball.(改为一般疑问句,作肯定回答)
→ ________________________________________
2. They are watching TV.(改为一般疑问句,作否定回答)
→ ________________________________________
3. I am cleaning my room.(改为一般疑问句,作肯定回答)
→ ________________________________________
4. She is not reading a book.(改为一般疑问句,作否定回答)
→ ________________________________________
Is he playing basketball? → Yes, he is.
Are they watching TV? → No, they aren’t.
Are you cleaning your room? → Yes, I am.
Is she reading a book? → No, she isn’t.
进阶练习题——特殊疑问句改写
1. She is playing the piano.
→ ________________________________________
2. They are dancing in the park.
→ ________________________________________
3. My sister is reading a storybook.
→ ________________________________________
4. We are having a party these days. → ________________________________________
What is she doing?
Where are they dancing?
Who is reading a storybook?
What are you doing these days?
进阶练习题——否定句改写
1. I am eating breakfast. → _____________________________
2. He is playing the violin. → ____________________________________
3. They are swimming in the pool. → _______________________________
4. We are preparing for the show. → ________________________________
5. She is watering the flowers. → ___________________________________
I am not eating breakfast.
He isn’t playing the violin.
They aren’t swimming in the pool.
We aren’t preparing for the show.
She isn’t watering the flowers.
提升练习题——单句改错
1. He is play football on the playground. → ________________________
2. I am not read a book now. → ________________________
3. They are danceing in the classroom. → ________________________
4. Is she watch TV? → ________________________
5. What are you do? → ________________________
play→playing
read→reading
danceing→dancing
watch→watching
do→doing
综合练习题——短文填空(一)
It’s Sunday morning. My family is very busy. My dad __________ (1) (clean) the house. My mum __________ (2) (cook) breakfast in the kitchen.
My sister __________ (3) (draw) a picture on the desk. I __________ (4) (help) my grandma water the flowers. Look! My little brother __________ (5) (play) with his toys. We are all happy.
is cleaning
is cooking
is drawing
am helping
is playing
Listen! The students _____________ (1) (sing) in the music room. Their teacher _____________ (2) (play) the piano for them. Some students ___________ (3) (dance) to the music. Two girls ____________ (4) (not sing). They ____________ (5) (talk) quietly. At the moment, everyone __________ (6) (enjoy) the music class.
are dancing
aren’t singing
are talking
is enjoying
are singing
is playing
综合练习题——句型转换综合训练
1. They are playing games.(改为否定句) ________________________________________
2. She is reading a newspaper.(改为一般疑问句,作肯定回答) ________________________________________
3. We are having a show.(对划线部分提问) ________________________________________
4. He is playing football in the park.(对划线部分提问) ________________________________________
They aren’t playing games.
Is she reading a newspaper? → Yes, she is.
What are you doing?
Where is he playing football?
现在进行时vs一般现在时(核心区别)
易混点:两者都表动作,但侧重点不同,避免混用
1. 现在进行时:表“正在进行”的动作,有标志词,用am/is/are+ing
示例:He is playing football now.
2. 一般现在时:表“经常性、习惯性”的动作,有频率副词(often, usually)
示例:He often plays football after school.
关键:看标志词和动作性质,判断用哪种时态
高频易错点汇总(全单元)
一、动词-ing变形易错点
1. 不发音e结尾,忘记去e直接加-ing(make→makeing×)
2. ie结尾,不变ie为y直接加-ing(lie→lieing×)
3. 非重读闭音节,盲目双写辅音(listen→listennig×)
二、时态运用易错点
1. 缺少am/is/are,直接用动词-ing(He playing×)
2. 混淆现在进行时和一般现在时(有标志词仍用原形)
3. 特殊疑问句结构错误(What you are doing?×)
解题技巧总结
1. 识别时态:看到now, look, listen等标志词,立刻用现在进行时
2. 确定句式:根据肯定/否定/疑问,判断是否加not、提前am/is/are
3. 动词变形:先判断动词类型,再按4种规则变-ing形式
4. 检查核对:确保am/is/are与主语一致,动词-ing变形正确
5. 句型转换:遵循“一变二调三问号”(变结构、调语序、加问号)
核心知识点总结(一)
一、现在进行时定义与场景
1. 定义:表示此时此刻正在进行或现阶段正在进行的动作
2. 两大场景:此刻进行(now, look, listen)、现阶段进行(these days)
3. 核心标志词:now, look, listen, at the moment, these days
二、核心句式结构
1. 肯定句:主语 + am/is/are + 动词-ing + 其他
2. 否定句:主语 + am/is/are + not + 动词-ing + 其他
核心知识点总结(二)
3. 一般疑问句:Am/Is/Are + 主语 + 动词-ing + 其他?(回答用Yes/No)
4. 特殊疑问句:疑问词 + Am/Is/Are + 主语 + 动词-ing + 其他?(完整回答)
三、动词-ing变形规则
1. 一般情况:直接加-ing;2. 不发音e结尾:去e加-ing
3. ie结尾:变ie为y加-ing;4. 元+辅重读闭音节:双写加-ing
四、关键提醒:am/is/are与主语一致,避免时态混用
教学课件
Unit8 语法专项——现在进行时(Present continuous tense)
Thank you for listening!
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