Unit 8 Natural disasters Grammar课件(共25张PPT) 2023-2024学年牛津译林版英语八年级上册
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| 名称 | Unit 8 Natural disasters Grammar课件(共25张PPT) 2023-2024学年牛津译林版英语八年级上册 |  | |
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| 科目 | 英语 | ||
| 更新时间 | 2024-01-04 20:16:25 | ||
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(共25张PPT)
译林版
初中英语 译林版八年级上册
Unit 8
Period 3
Grammar
新课导入
Look and say
1. I was sleeping when it started to rain.
2. I was sleeping when the earthquake started.
3. Outside, people were running in all directions while pieces of glass and bricks were falling down.
4. I felt nervous and my heart was beating fast.
5. Hours later, as I was trying to find way out, I suddenly heard some noise above me.
1
2
能熟悉并正确运用本课时的重点单词和短语。
能掌握过去进行时。
3
能掌握when、while和as的用法。
1. —What were you doing this time yesterday
—I _____ on the grass and drawing a picture.
A. sit B. sat C. am sitting D. was sitting
2. When I came back yesterday evening, my brother _____ his homework.
A. is doing B. has done C. was doing D.does
3. —I called you at 4:00 yesterday afternoon, but no one answered.
—Sorry, I _____ with my friends at that time.
A. swim B. swam C. will swim D. was swimming
预习检测
D
C
D
4. I was sleeping _____ you knocked at the door of my house.
A. until B. while C. after D.when
5. He _____ when the UFO arrived. He didn’t wake until the UFO
disappeared.
A. slept B. was sleeping
C. was doing homework D. was singing
D
B
知识梳理
1. My dad's car broke down because of the cold weather.
break down (车辆或机器)出故障，坏掉
e.g. The car broke down on the way to the airport.
车子在去机场的路上出故障了。
Language Points
because of 因为；由于
e.g. Because of you, we have to put the meeting off.
因为你的缘故，我们已把会议推迟了。
过去进行时
Past continuous tense
be (was/were) + verb-ing
过去进行时
在过去某段时间一直在进行的动作
e.g. a) From 1983 to 1998, he was teaching at Yale.
b) They were building a dam last winter.
过去进行时主要表示在过去某一时刻正在进行的动作。
e.g. a) They were eating breakfast at 7:00 am yesterday.
b) I was writing a letter at this time yesterday.
c) Five minutes ago, Danny was looking out of the
window and Suzy was reading a book.
1. 定义
2. 句式
(1) 肯定句：主语 + was / were + verb-ing
I was doing some shopping.
People were running wildly.
I was not reading.
People were not running wildly.
(2) 否定式：主语 + was / were not + verb-ing
was not = wasn’t were not = weren’t
(3) 疑问句：将 was / were 调到主语前
结构为：Was/Were+主语+verb-ing
肯定回答：Yes, 主语+was/were.
否定回答：No, 主语+ was not/wasn’t.
were not/weren’t.
Was he running
Yes, he was. / No, he wasn’t.
Were they running
Yes, they were. / No, they weren’t.
4) 特殊疑问句：
疑问词 + was/were +主语 + verb-ing …
What was he doing just now
Tip: 第一人称单数、第三人称单数及单数形式名词的主语用was，第一人称复数、第二人称单复数、第三人称复数及复数形式名词的主语用were。
A snowstorm hit Sunshine Town. Mr Wu is asking the students about plete their conversation with the correct forms of the verbs in brackets.
Mr Wu: What a terrible snowstorm! It started at about seven this
morning. I ___________ (read) the newspaper then.
What _____ you ______ (do), Simon
Simon: I ___________ (have) breakfast.
Mr Wu: What about you, Millie
was reading
were doing
was having
Millie: I ____________ (walk) to the bus stop. Sandy, I saw
you and your parents standing on the side of the road.
_____ you _______ (wait) for a taxi
Sandy: Yes. My dad’s car broke down because of the cold
weather. He ___________ (ring) someone to come and
help when you saw us.
was walking
Were
waiting
was ringing
通过以
活动小结
通过以上的活动，我们学习了过去进行时：
我们用过去进行时表示过去__________正在进行的动作或过去_________一直在进行的动作。其基本形式为_____________________。
某一时刻
某一阶段
be (was/were)+verb-ing
探究二
when、while和as的用法
1. I was sleeping when the earthquake started.
2. Outside, people were running in all directions while pieces of glass and bricks were falling down.
3. Hours later, as I was trying to find way out, I suddenly heard some noise above me.
Look and say
when, while 和 as 这三个词都有“当……时候”的意思。
There were fewer sandstorms when my grandparents were young.
我祖父母年轻时沙尘暴要少些。
While Millie was watching TV, her mum was sleeping.
米莉在看电视时，妈妈在睡觉。
I saw a traffic accident as I was riding to school this morning.
今天早晨我骑自行车时看到一起交通事故。
when, while和as的用法
when 和 as 既可以指某一点时间，也可以指某一段时间，其从句谓语动词表示的动作既可以是瞬间性的，也可以是延续性的；while指一段时间，从句中的谓语动词必须是延续性的。即：指一段时间时when, while 和as都可用；指一点时间时，只能用when或as，不能用while。
试比较：
When/As he woke up, it was eight o’clock.
2. While he woke up, it was eight o’clock.
3. When/While/As I was waiting for a bus, I met her.
×
√
√
当 while , when 和 as 放在句首时，两个句子应用逗号隔开。
When the teacher came in, we were talking.
While the pig was dancing, the rabbit was jumping.
As the two men were leaving, a message arrived.
当短暂性的动作和延续性的动作同时发生时，短暂性动作用一般过去式，延续性动作用过去进行时。
Millie was watching TV when Andy came into the room.
如果短暂性的动作是主句时，我们可以用when, while 或 as 引导。
When/while/as Millie was watching TV, Andy came into the room.
如果延续性的动作是主句时，我们经常用when 来连接。
Millie was watching TV when Andy came into the room.
当连接同时发生的两个延续性长动作时，常用while引导。
While I was watching TV, he was listening to music.
Millie was reading a book while Eddie was sleeping.
Some Class 1, Grade 8 students went to play in the plete the sentences with the correct forms of the verbs in brackets. Use when, while and as to connect the sentences.
_______________ Simon _________________ (arrive), Amy _______________ (get) some snow from the ground.
_______________ Suzy and Kitty _______________ (build) a snowman, Millie _________________ (take) photos.
When
arrived
While/When/As
was building
was taking
was getting
Daniel _______________ (fall) over __________________ he _________________ (make) a big snowball.
Peter _________________ (hide) behind a tree _______________ a snowball ________________ (hit) him.
_______________ Millie and her classmates _____________ (play) in the snow, Andy _________________ (run) towards them.
fell
while/as/when
was making
was hiding
when
hit
were playing
When/While/As
ran
活动小结
通过以上的活动，我们学习了when、while和as的用法：
when、while和as这三个词均有_____________的意思，_______和________既可以指某一点时间，也可以指某一段时间；_________只能指某一段时间。
当……时候
when
as
while
当堂检测
一、根据句意及提示完成下列句子。
1. What ________ you _______ (do) at this time yesterday
2. I _____________ (watch) TV from 8 p.m. to 10 p.m.
3. He ___________ (read) while his brother ___________(watch) TV.
4. They ___________ (chat) when their teacher _______ (come) into
the classroom.
5. ______ Amy ________ (visit) the Science Museum from 9:00 a.m. to 11:00 a.m. yesterday
were
doing
was watching
was reading
was watching
were chatting
came
Was
visiting
二、翻译下列句子。
1. 当开始下雨的时候，我正和朋友们在操场上打篮球。
2. 当我妈妈在做晚饭的时候，我在卧室做作业。
3. 当她下公交车时，我看到了她。
4. 昨天下午三点，我正在上课。
5. 上周这时候你正在干嘛？
I was playing basketball with my friends on the playground when it started to rain.
I was doing my homework in the bedroom while my mother was cooking supper.
I saw her as she was getting off the bus.
I was having a class at 3:00 p.m. yesterday.
What were you doing at this moment last week
重点单词和短语：
break, break down, because of
过去进行时：
定义：我们用过去进行时表示过去某一时刻正在进行的动作或过去某一阶段一直在进行的动作。
句型结构：
肯定句：__________________________
否定句：__________________________
when、while和as：
when、while和as这三个词均有_____________的意思。
Unit 8
Period 3
主语+was/were+现在分词
主语+was/were+not+现在分词
当……时候
译林版
初中英语 译林版八年级上册
Unit 8
Period 3
Grammar
新课导入
Look and say
1. I was sleeping when it started to rain.
2. I was sleeping when the earthquake started.
3. Outside, people were running in all directions while pieces of glass and bricks were falling down.
4. I felt nervous and my heart was beating fast.
5. Hours later, as I was trying to find way out, I suddenly heard some noise above me.
1
2
能熟悉并正确运用本课时的重点单词和短语。
能掌握过去进行时。
3
能掌握when、while和as的用法。
1. —What were you doing this time yesterday
—I _____ on the grass and drawing a picture.
A. sit B. sat C. am sitting D. was sitting
2. When I came back yesterday evening, my brother _____ his homework.
A. is doing B. has done C. was doing D.does
3. —I called you at 4:00 yesterday afternoon, but no one answered.
—Sorry, I _____ with my friends at that time.
A. swim B. swam C. will swim D. was swimming
预习检测
D
C
D
4. I was sleeping _____ you knocked at the door of my house.
A. until B. while C. after D.when
5. He _____ when the UFO arrived. He didn’t wake until the UFO
disappeared.
A. slept B. was sleeping
C. was doing homework D. was singing
D
B
知识梳理
1. My dad's car broke down because of the cold weather.
break down (车辆或机器)出故障，坏掉
e.g. The car broke down on the way to the airport.
车子在去机场的路上出故障了。
Language Points
because of 因为；由于
e.g. Because of you, we have to put the meeting off.
因为你的缘故，我们已把会议推迟了。
过去进行时
Past continuous tense
be (was/were) + verb-ing
过去进行时
在过去某段时间一直在进行的动作
e.g. a) From 1983 to 1998, he was teaching at Yale.
b) They were building a dam last winter.
过去进行时主要表示在过去某一时刻正在进行的动作。
e.g. a) They were eating breakfast at 7:00 am yesterday.
b) I was writing a letter at this time yesterday.
c) Five minutes ago, Danny was looking out of the
window and Suzy was reading a book.
1. 定义
2. 句式
(1) 肯定句：主语 + was / were + verb-ing
I was doing some shopping.
People were running wildly.
I was not reading.
People were not running wildly.
(2) 否定式：主语 + was / were not + verb-ing
was not = wasn’t were not = weren’t
(3) 疑问句：将 was / were 调到主语前
结构为：Was/Were+主语+verb-ing
肯定回答：Yes, 主语+was/were.
否定回答：No, 主语+ was not/wasn’t.
were not/weren’t.
Was he running
Yes, he was. / No, he wasn’t.
Were they running
Yes, they were. / No, they weren’t.
4) 特殊疑问句：
疑问词 + was/were +主语 + verb-ing …
What was he doing just now
Tip: 第一人称单数、第三人称单数及单数形式名词的主语用was，第一人称复数、第二人称单复数、第三人称复数及复数形式名词的主语用were。
A snowstorm hit Sunshine Town. Mr Wu is asking the students about plete their conversation with the correct forms of the verbs in brackets.
Mr Wu: What a terrible snowstorm! It started at about seven this
morning. I ___________ (read) the newspaper then.
What _____ you ______ (do), Simon
Simon: I ___________ (have) breakfast.
Mr Wu: What about you, Millie
was reading
were doing
was having
Millie: I ____________ (walk) to the bus stop. Sandy, I saw
you and your parents standing on the side of the road.
_____ you _______ (wait) for a taxi
Sandy: Yes. My dad’s car broke down because of the cold
weather. He ___________ (ring) someone to come and
help when you saw us.
was walking
Were
waiting
was ringing
通过以
活动小结
通过以上的活动，我们学习了过去进行时：
我们用过去进行时表示过去__________正在进行的动作或过去_________一直在进行的动作。其基本形式为_____________________。
某一时刻
某一阶段
be (was/were)+verb-ing
探究二
when、while和as的用法
1. I was sleeping when the earthquake started.
2. Outside, people were running in all directions while pieces of glass and bricks were falling down.
3. Hours later, as I was trying to find way out, I suddenly heard some noise above me.
Look and say
when, while 和 as 这三个词都有“当……时候”的意思。
There were fewer sandstorms when my grandparents were young.
我祖父母年轻时沙尘暴要少些。
While Millie was watching TV, her mum was sleeping.
米莉在看电视时，妈妈在睡觉。
I saw a traffic accident as I was riding to school this morning.
今天早晨我骑自行车时看到一起交通事故。
when, while和as的用法
when 和 as 既可以指某一点时间，也可以指某一段时间，其从句谓语动词表示的动作既可以是瞬间性的，也可以是延续性的；while指一段时间，从句中的谓语动词必须是延续性的。即：指一段时间时when, while 和as都可用；指一点时间时，只能用when或as，不能用while。
试比较：
When/As he woke up, it was eight o’clock.
2. While he woke up, it was eight o’clock.
3. When/While/As I was waiting for a bus, I met her.
×
√
√
当 while , when 和 as 放在句首时，两个句子应用逗号隔开。
When the teacher came in, we were talking.
While the pig was dancing, the rabbit was jumping.
As the two men were leaving, a message arrived.
当短暂性的动作和延续性的动作同时发生时，短暂性动作用一般过去式，延续性动作用过去进行时。
Millie was watching TV when Andy came into the room.
如果短暂性的动作是主句时，我们可以用when, while 或 as 引导。
When/while/as Millie was watching TV, Andy came into the room.
如果延续性的动作是主句时，我们经常用when 来连接。
Millie was watching TV when Andy came into the room.
当连接同时发生的两个延续性长动作时，常用while引导。
While I was watching TV, he was listening to music.
Millie was reading a book while Eddie was sleeping.
Some Class 1, Grade 8 students went to play in the plete the sentences with the correct forms of the verbs in brackets. Use when, while and as to connect the sentences.
_______________ Simon _________________ (arrive), Amy _______________ (get) some snow from the ground.
_______________ Suzy and Kitty _______________ (build) a snowman, Millie _________________ (take) photos.
When
arrived
While/When/As
was building
was taking
was getting
Daniel _______________ (fall) over __________________ he _________________ (make) a big snowball.
Peter _________________ (hide) behind a tree _______________ a snowball ________________ (hit) him.
_______________ Millie and her classmates _____________ (play) in the snow, Andy _________________ (run) towards them.
fell
while/as/when
was making
was hiding
when
hit
were playing
When/While/As
ran
活动小结
通过以上的活动，我们学习了when、while和as的用法：
when、while和as这三个词均有_____________的意思，_______和________既可以指某一点时间，也可以指某一段时间；_________只能指某一段时间。
当……时候
when
as
while
当堂检测
一、根据句意及提示完成下列句子。
1. What ________ you _______ (do) at this time yesterday
2. I _____________ (watch) TV from 8 p.m. to 10 p.m.
3. He ___________ (read) while his brother ___________(watch) TV.
4. They ___________ (chat) when their teacher _______ (come) into
the classroom.
5. ______ Amy ________ (visit) the Science Museum from 9:00 a.m. to 11:00 a.m. yesterday
were
doing
was watching
was reading
was watching
were chatting
came
Was
visiting
二、翻译下列句子。
1. 当开始下雨的时候，我正和朋友们在操场上打篮球。
2. 当我妈妈在做晚饭的时候，我在卧室做作业。
3. 当她下公交车时，我看到了她。
4. 昨天下午三点，我正在上课。
5. 上周这时候你正在干嘛？
I was playing basketball with my friends on the playground when it started to rain.
I was doing my homework in the bedroom while my mother was cooking supper.
I saw her as she was getting off the bus.
I was having a class at 3:00 p.m. yesterday.
What were you doing at this moment last week
重点单词和短语：
break, break down, because of
过去进行时：
定义：我们用过去进行时表示过去某一时刻正在进行的动作或过去某一阶段一直在进行的动作。
句型结构：
肯定句：__________________________
否定句：__________________________
when、while和as：
when、while和as这三个词均有_____________的意思。
Unit 8
Period 3
主语+was/were+现在分词
主语+was/were+not+现在分词
当……时候