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教学课件
教科版英语七年级上册
Unit 3语法专项—— 一般过去时 & 过去进行时
全解精讲+分层练习
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学习目标
1. 掌握过去进行时的定义、结构和动词变化
2. 熟记两大时态时间标志词,区分核心用法
3. 精通when/while引导的时态句型规则
4. 熟练辨析长短动作,攻克高频易错点
5. 灵活完成各类题型,掌握解题技巧
过去进行时——基本概念
定义:描述过去特定时间的持续动作
用法1:过去某个确切时刻正在做的事
用法2:过去某一时间段持续进行的动作
特点:不强调动作是否完成,侧重“正在进行”
过去进行时——时间标志词
1. 确切时间点:at 9:00 yesterday、at that moment
2. 固定时段:this time last week、then、at that time
3. 连词搭配:when / while 引导时间状语从句
口诀:定点、时段、连词后,常用过去进行时
过去进行时——完整句式结构
肯定句:主语 + was/were + 动词-ing
否定句:主语 + was/were + not + 动词-ing
一般疑问句:Was/Were + 主语 + 动词-ing?
特殊疑问句:疑问词 + Was/Were + 主语 + 动词-ing?
was/were 选用规则
单数主语用 was:I/he/she/it/单数名词
复数主语用 were:you/we/they/复数名词
例:She was reading.(单数)
例:They were running.(复数)
动词-ing 变形规则(必考)
1. 一般动词:直接加-ing(talk→talking)
2. 不发音e结尾:去e加-ing(dance→dancing)
3. 辅+元+辅重读闭音节:双写尾字母加-ing
例:sit→sitting、run→running、stop→stopping
过去进行时——例句
1. I was reading fables at 8:00 last night.
译:昨晚八点我正在读寓言故事
2. They were walking in the forest this time yesterday.
译:昨天这个时候他们在森林里散步
两大时态核心区别
时态 核心含义 动作特点
过去进行时 过去正在进行 长动作、背景、持续
一般过去时 过去已经发生 短动作、瞬间、已完成
when & while 用法精讲
while:仅接延续长动作,后只用过去进行时
when:用法灵活,可接长/短动作、两种时态均可
核心逻辑:while表持续,when表突发瞬间
必考黄金句型一
While + 过去进行时,主句 + 一般过去时
含义:正当长动作进行时,突发短动作
例句:While she was walking, she met a bird.
译:她散步的时候,遇见了一只小鸟
必考黄金句型二
主句 + 过去进行时 + when + 一般过去时
含义:正在做某事,这时突然发生某事
例句:We were reading when the bell rang.
译:我们正在看书,这时铃声响了
高频易错点汇总
1. 具体过去时刻(at+时间)→ 必用过去进行时
2. while从句禁止使用一般过去时
3. 瞬间动词无进行时:come/fall/ring/stop只用过去式
4. 进行时必带was/were,不可直接加-ing
易错动词拓展(瞬间动词)
无过去进行时,仅用一般过去时:
fall(掉落)、ring(响铃)、come(到来)
leave(离开)、start(开始)、jump(跳跃)
口诀:瞬间动作无持续,只用过去式
题型一 用was/were填空
1. He ______ telling a story at that time.
2. ______ they playing outside this time yesterday?
3. My sister ______ not drawing at 7 last night.
4. The rabbits ______ sleeping under the tree then.
was
Were
was
were
题型二 动词适当形式填空
1. At 6:30 yesterday, I ______________ (write) a diary.
2. They ______________ (not run) on the playground then.
3. What ______________ he ______________ (do) last night at 8?
4. While she ______________ (walk), it began to rain.
was writing
weren’t running
was doing
was walking
题型三 时态混合填空
1. While we __________ (hike), we __________ (see) a snake.
2. He __________ (think) hard when his friend __________ (call).
3. The wind __________ (blow) when we __________ (leave) home.
4. She __________ (rest) while I __________ (read) books.
were hiking
met
was thinking
called
was blowing
left
was resting
was reading
题型四 单项选择
1. ______ I was waiting, I ______ a nice flower.
A. While; found B. When; find C. While; find
2. —What were you doing at 9 pm yesterday?
—I ______ TV. A. watch B. watched C. was watching
3. When I ______ the room, they ______ chatting.
A. entered; were talking B. enter; talked
4. While he ______, he ______ a strange sound.
A. traveled; hear B. was traveling; heard
A
C
A
B
题型五 句型转换
1. She was reading a storybook.(改为否定句)
2. They were playing games then.(一般疑问+否定回答)
3. He was running at that moment.(对划线动作提问)
She wasn’t reading a storybook.
—Were they playing games then? —No, they weren’t.
What was he doing at that moment?
题型六 句型转换
1. The girl bought flowers.(改过去进行时,at that time)
2. When he was working, his dad came.(用while改写)
3. We were singing when the rain stopped.(同义句转换)
The girl was buying flowers at that time.
While he was working, his dad came.
While we were singing, the rain stopped.
时态解题技巧(一)
1. 看见具体过去时间点 → 优先过去进行时
2. 看见while → 从句必用过去进行时
3. 瞬间动词出场 → 只用一般过去时
4. 长背景+短突发 → 长进行、短过去
时态解题技巧(二)
when 万能用法:
从句短动作(过去式)+ 主句长动作(进行时)
while 专属用法:
从句长动作(进行时)+ 主句短动作(过去式)
时态辨析易混对比
I read the story yesterday.(一般过去时:读完了)
I was reading at 8 yesterday.(过去进行时:正在读)
核心差异:是否强调持续进行的状态
动词变形易错汇总
run → running(双写n)
sit → sitting(双写t)
write → writing(去e)
stop → stopping(双写p)
本节课小结(1)
1. 过去进行时:was/were + doing,表过去持续动作
2. 一般过去时:表过去瞬间、已完成动作
3. while后接进行时,when时态灵活
4. 瞬间动词无进行时态
本节课小结(2)
必考句型1:While+长进行,主句短过去
必考句型2:主句长进行,when+短过去
做题核心:先判长短动作,再定对应时态
解题关键:抓时间词、抓连词、判动词类型
核心口诀记忆
过去进行看时段,定点时刻正进行
while后永远doing,when时态任意行
长动持续用进行,短动突发过去式
瞬间动词无进行,牢记规则不丢分
教学课件
Unit 3语法专项—— 一般过去时 & 过去进行时
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