Unit 2 School life 语法专项 一般过去时 课件(共24张PPT) 冀教版(新教材)七年级下册

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Unit 2 School life 语法专项 一般过去时 课件(共24张PPT) 冀教版(新教材)七年级下册

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(共24张PPT)
教学课件
冀教英语七年级下册
Unit2 语法专项—— 一般过去时
全解精讲+分层练习
学习目标
理解一般过去时的定义与使用场景
掌握规则动词过去式的四种变化规则
熟记本单元高频不规则动词过去式
熟练运用肯定、否定、疑问四种句式
能准确描述过去的校园生活与经历
一般过去时 核心定义
表示过去发生的动作或存在的状态
表示过去经常性、习惯性的行为
动作已经完成,与现在没有关联
必须搭配明确的过去时间状语使用
常用过去时间状语
yesterday 昨天
last week / last month / last year 上周/上月/去年
last term 上学期
… ago ……以前
just now 刚才
规则动词过去式变化(一)
一般动词:词尾直接加 -ed
work → worked play → played visit → visited help → helped
规则动词过去式变化(二)
以不发音的字母 e 结尾,直接加 -d
like → liked live → lived hope → hoped use → used
只适用于词尾不发音 e 的动词
规则动词过去式变化(三)
辅音字母 + y 结尾,变 y 为 i 再加 -ed
study → studied cry → cried worry → worried try → tried
元音 + y 结尾直接加 ed,如 play → played
规则动词过去式变化(四)
重读闭音节:辅 + 元 + 辅结尾,双写末尾辅音字母,再加 -ed
stop → stopped plan → planned shop → shopped skip → skipped
本单元不规则动词
make → made do → did
go → went run → ran
win → won have → had
say → said see → saw
肯定句结构(规则动词)
主语 + 动词过去式 + 其他, 无人称、单复数变化
例句:She visited her students last weekend.
例句:We worked hard yesterday.
肯定句结构(不规则动词)
主语 + 不规则过去式 + 其他,无固定变化,需单独记忆
例句:I made a plan last term. 例句:He ran in the race last week.
否定句结构
主语 + didn’t + 动词原形 + 其他
didn’t = did not,后一律用原形
例句:He didn’t miss any classes last term.
例句:They didn’t play basketball yesterday.
一般疑问句结构
Did + 主语 + 动词原形 + 其他?
肯定回答:Yes, 主语 + did. 否定回答:No, 主语 + didn’t.
例句:Did you work hard in the sports meeting
一般疑问句例句与回答
Did you work hard in the sports meeting Yes, I did.
Did she visit her students last month No, she didn’t.
特殊疑问句结构
疑问词 + did + 主语 + 动词原形 + 其他
常用疑问词:what, when, where, how 疑问词必须放在句首
例句:When did you play ping-pong
特殊疑问句例句
What did you do yesterday Where did they go last Sunday
How did you go to school yesterday Who did you help last week
用法一 描述过去具体事件
用于讲述过去已经完成的一次性动作
句中常有明确过去时间
贴合校园生活、运动会、学习经历
例句:Last year I wanted to give up studies.
用法二 描述过去习惯动作
表示过去经常、反复发生的动作
常与 often, usually 连用
例句:She often helped others last term.
例句:They usually played after school last year.
用法三 描述过去状态与想法
表示过去的感受、意愿、状态
不强调动作过程,只说明过去情况
例句:I wanted to help my family last year.
例句:He was happy at the party.
易错点一 否定/疑问动词形式
否定句、疑问句中出现 did/didn’t ,后面实义动词必须用原形
错误:He didn’t worked. 正确:He didn’t work.
易错点二 辅音 + y 结尾变化
辅音 + y 结尾,必须变 y 为 i 加 ed,不可直接加 ed
错误:studyed,正确:studied
易错点三 重读闭音节双写
重读闭音节结尾,必须双写尾字母,不可直接加 ed
错误:stoped,正确:stopped
易错点四 不规则动词
不规则动词不能套用 ed 规则,必须逐个背诵记忆
错误:make → maked 正确:make → made
课堂小练 写出动词过去式
work → ________ play→ ________ walk→ ________
live → ________ love→ ________ dance→ ________
study → ________ worry→ ________ cry→ ________
stop → ________ plan→ ________ shop→ ________
make → ________ go→ ________ eat→ ________
worked
played
walked
lived
loved
danced
studied
worried
cried
stopped
planned
shopped
made
went
ate
基础练习一 适当形式填空
I ___________ (want) to stay home last year.
They ___________ (work) hard yesterday.
___________ you ___________ (play) ping-pong last Sunday
She ___________ (not miss) any classes last term.
wanted
worked
Did play
didn’t miss
基础练习二 改写句子(用过去时间)
We play basketball after school.(yesterday)
She visits her students every week.(last month)
I help my mother every day.(last week)
We played basketball after school yesterday.
She visited her students last month.
I helped my mother last week.
基础练习三 改为否定句
He worked hard in the exam.
They played football yesterday.
She visited her students last weekend.
基础练习四 改为一般疑问句并回答
I wanted to give up my studies last year.
They watched a movie last night.
He didn’t work hard in the exam.
They didn’t play football yesterday.
She didn’t visit her students last weekend.
Did you want to give up your studies last year
Yes, I did. / No, I didn’t.
Did they watch a movie last night
Yes, they did. / No, they didn’t.
补全对话
A: What ________ you ________ last week
B: I ________ in the 100-meter race.
A: ________ you win
B: No, I ________. But I ________ my best.
did do
ran
Did
didn’t
tried
英汉互译
She visited her students last weekend.
Did you work hard in the exam
他上学期没缺过课。
你什么时候和爸爸打乒乓球了?
她上周末看望了她的学生。
你考试时努力了吗?
He didn’t miss any classes last term.
When did you play ping-pong with your father
课堂总结
一般过去时表示过去动作、状态、习惯
规则动词按四种规则变过去式
不规则动词需单独记忆
否定/疑问用 did/didn’t + 动词原形
教学课件
Unit2 语法专项—— 一般过去时
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