Unit 8 Natural disasters Grammar 课件(共24张PPT，含内嵌视频) 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24张PPT，含内嵌视频) 牛津译林版英语八年级上册 |  | |
| 格式 | pptx | ||
| 文件大小 | 4.0MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 牛津译林版 | ||
| 科目 | 英语 | ||
| 更新时间 | 2023-12-23 11:39:15 | ||
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(共24张PPT)
Unit 8
Natural disasters
Period 3
Grammar
新
课
导
入
Video about past continuous tense
Language Goal
1. 能熟悉并正确运用本课时的重点单词和短语。
2. 能掌握过去进行时。
3.能掌握when、while和as的用法。
新知学习
课堂小结
当堂检测
学习目标
重点研讨
新知学习
课堂小结
当堂检测
学习目标
重点研讨
A Past continuous tense
We use the past continuous tense to talk about things that were happening at a particular time in the past.
I was (not) sleeping at 10 p.m. last night.
You/We/They were (not)
He/She/It was (not)
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Was I sleeping at 10 p.m. last night
Were you/we/they
Was he/she/it
Yes, I was.
you/we/they were.
he/she/it was.
No, I wasn’t.
you/we/they weren’t.
he/she/it wasn’t.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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
新知学习
课堂小结
当堂检测
学习目标
重点研讨
B Using when, while and as
When, while and as can be used as conjunctions of time. They all mean “during the time that”.
I was sleeping when the earthquake started.
People were running in all directions while pieces of glass and bricks were falling down.
As I was trying to find my way out, I suddenly heard some noise above me.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Note: When a shorter action happened at the same time as a longer action, we use the past continuous tense for the longer action and the simple past tense for the shorter action. When there are two long actions, we often use while.
If the shorter action is in the main clause, we can use when, while or as to join them.
When/while/as Millie was watching TV, Andy came into the room.
If the longer action is in the main clause, we often use when to join them.
Millie was watching TV when Andy came into the room.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Tip:
We use a comma to separate the two clauses if when, while or as comes at the beginning of the sentence.
When the earthquake started, most people were sleeping.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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
was building
was taking
was getting
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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
While
was running
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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。
新知学习
课堂小结
当堂检测
学习目标
重点研讨
过去进行时
我们可以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。如：
I was doing my homework at 8 p.m. last night.
昨晚8点我正在做家庭作业。
What were you doing last month
你上个月一直在做什么？
新知学习
课堂小结
当堂检测
学习目标
重点研讨
过去进行时的肯定结构是由“was/were + 现在分词”构成，否定 结构是由“was/were + not + 现在分词”构成。如：
The boy was cleaning the house. 那个男孩在打扫房子。
We were not shopping at this time yesterday.
昨天这个时候我们没在购物。
有些动词通常不用于进行时，主要有：
1. 表示心理状态、情感的动词，如love、hate、like、know等。
2. 部分连系动词，如seem、appear等。
3. 感官动词，如see、hear、feel、smell、sound、taste等。
4. 短暂性动词，如decide、stop等。
新知学习
课堂小结
当堂检测
学习目标
重点研讨
when、while和as的用法
when，while和as这三个词均有“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.
米莉在看电视时她妈妈在睡觉。
I saw a traffic accident as I was riding to school this morning.
今天早晨我骑车上学时看见一起交通事故。
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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. ( √ )
While he woke up, it was eight o'clock. (×)
When/While/As I was waiting for a bus, I met her. ( √)
新知学习
课堂小结
当堂检测
学习目标
重点研讨
when引导的从句的谓语动作可以在主句谓语动作之前、之后或同时发生；while和as引导的从句的谓语动作必须是和主句谓语动作同时发生。
When he finished his homework, he played the computer games for a
while. 当他完成作业后，他玩了会儿电脑游戏。（finished先发生）
When I got to the museum, the door was closed.
当我赶到博物馆时，大门已经关上了。（got to后发生）
While/As I was sleeping, the telephone rang.
当我睡觉时，电话响了。（was sleeping和rang同时发生）
新知学习
课堂小结
当堂检测
学习目标
重点研讨
当主句、从句动作同时发生且从句动作为延续性动词时，when、while和as都可使用。
When/While/As she was making a phone call, I was writing an email.
当她在打电话时，我正在写一封电子邮件。（make为延续性动词）
When/While/As we were reading, a stranger came in.
当我们正在看书时，一位陌生人走了进来。（read为延续性动词）
新知学习
课堂小结
当堂检测
学习目标
重点研讨
强调两个动作同时进行，常用“过去进行时+while+过去进行时”结构。如：
They were rowing boats while we were climbing the hill.
当我们在爬山时，他们在划船。
强调某个动作发生的时候，另一个动作正在进行，常用“一般过去时+while+过去进行时”结构如：
It began to rain heavily while we were having dinner.
我们在吃完饭时，开始下起大雨。
新知学习
课堂小结
当堂检测
学习目标
重点研讨
强调某个动作正在进行时，另一个动作突然发生，常用“过去进行时+when+一般过去时”结构。如：
I was walking in the street when he called me.
我正在街上走时，他突然喊我。
当主句、从句动作同时进行，从句动作的时间概念淡化，而主要表示主句动作发生的背景或条件时，只能用as。这时，as有“随着……”；“一边……，一边……”之意。
As years go by, China is getting richer and stronger.
随着时间一年一年过去，中国变得越来越富强了。
The little girls sang as they played. 小姑娘们一边玩，一边唱。
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
新知学习
课堂小结
当堂检测
学习目标
重点研讨
主语+was/were+现在分词
主语+was/were+not+现在分词
当……时候
新知学习
课堂小结
当堂检测
学习目标
重点研讨
一、用括号中单词的适当形式填空。
1. He asked me if I ____________ (go) fishing that afternoon.
2. When the bell rang, jenny _______________ (wait) in her seat.
3. She ___________ (make) her dress the whole afternoon.
4. When I came in the room, he _____________ (read) something
5. When we _______ (arrive) at the village, it was raining hard.
was going
was waiting
was making
was reading
arrived
新知学习
课堂小结
当堂检测
学习目标
重点研讨
二、用when、while或as完成下列句子。
It began to rain ______________ Linda was having supper.
2. What were you doing _______ Mr Jackson came into the classroom
3. _______________ you are driving, don’t use your mobile phone.
4. ____ years go by, China is getting better and better.
when/while/as
when
When/While/As
As
Unit 8
Natural disasters
Period 3
Grammar
新
课
导
入
Video about past continuous tense
Language Goal
1. 能熟悉并正确运用本课时的重点单词和短语。
2. 能掌握过去进行时。
3.能掌握when、while和as的用法。
新知学习
课堂小结
当堂检测
学习目标
重点研讨
新知学习
课堂小结
当堂检测
学习目标
重点研讨
A Past continuous tense
We use the past continuous tense to talk about things that were happening at a particular time in the past.
I was (not) sleeping at 10 p.m. last night.
You/We/They were (not)
He/She/It was (not)
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Was I sleeping at 10 p.m. last night
Were you/we/they
Was he/she/it
Yes, I was.
you/we/they were.
he/she/it was.
No, I wasn’t.
you/we/they weren’t.
he/she/it wasn’t.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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
新知学习
课堂小结
当堂检测
学习目标
重点研讨
B Using when, while and as
When, while and as can be used as conjunctions of time. They all mean “during the time that”.
I was sleeping when the earthquake started.
People were running in all directions while pieces of glass and bricks were falling down.
As I was trying to find my way out, I suddenly heard some noise above me.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Note: When a shorter action happened at the same time as a longer action, we use the past continuous tense for the longer action and the simple past tense for the shorter action. When there are two long actions, we often use while.
If the shorter action is in the main clause, we can use when, while or as to join them.
When/while/as Millie was watching TV, Andy came into the room.
If the longer action is in the main clause, we often use when to join them.
Millie was watching TV when Andy came into the room.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Tip:
We use a comma to separate the two clauses if when, while or as comes at the beginning of the sentence.
When the earthquake started, most people were sleeping.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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
was building
was taking
was getting
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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
While
was running
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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。
新知学习
课堂小结
当堂检测
学习目标
重点研讨
过去进行时
我们可以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。如：
I was doing my homework at 8 p.m. last night.
昨晚8点我正在做家庭作业。
What were you doing last month
你上个月一直在做什么？
新知学习
课堂小结
当堂检测
学习目标
重点研讨
过去进行时的肯定结构是由“was/were + 现在分词”构成，否定 结构是由“was/were + not + 现在分词”构成。如：
The boy was cleaning the house. 那个男孩在打扫房子。
We were not shopping at this time yesterday.
昨天这个时候我们没在购物。
有些动词通常不用于进行时，主要有：
1. 表示心理状态、情感的动词，如love、hate、like、know等。
2. 部分连系动词，如seem、appear等。
3. 感官动词，如see、hear、feel、smell、sound、taste等。
4. 短暂性动词，如decide、stop等。
新知学习
课堂小结
当堂检测
学习目标
重点研讨
when、while和as的用法
when，while和as这三个词均有“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.
米莉在看电视时她妈妈在睡觉。
I saw a traffic accident as I was riding to school this morning.
今天早晨我骑车上学时看见一起交通事故。
新知学习
课堂小结
当堂检测
学习目标
重点研讨
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. ( √ )
While he woke up, it was eight o'clock. (×)
When/While/As I was waiting for a bus, I met her. ( √)
新知学习
课堂小结
当堂检测
学习目标
重点研讨
when引导的从句的谓语动作可以在主句谓语动作之前、之后或同时发生；while和as引导的从句的谓语动作必须是和主句谓语动作同时发生。
When he finished his homework, he played the computer games for a
while. 当他完成作业后，他玩了会儿电脑游戏。（finished先发生）
When I got to the museum, the door was closed.
当我赶到博物馆时，大门已经关上了。（got to后发生）
While/As I was sleeping, the telephone rang.
当我睡觉时，电话响了。（was sleeping和rang同时发生）
新知学习
课堂小结
当堂检测
学习目标
重点研讨
当主句、从句动作同时发生且从句动作为延续性动词时，when、while和as都可使用。
When/While/As she was making a phone call, I was writing an email.
当她在打电话时，我正在写一封电子邮件。（make为延续性动词）
When/While/As we were reading, a stranger came in.
当我们正在看书时，一位陌生人走了进来。（read为延续性动词）
新知学习
课堂小结
当堂检测
学习目标
重点研讨
强调两个动作同时进行，常用“过去进行时+while+过去进行时”结构。如：
They were rowing boats while we were climbing the hill.
当我们在爬山时，他们在划船。
强调某个动作发生的时候，另一个动作正在进行，常用“一般过去时+while+过去进行时”结构如：
It began to rain heavily while we were having dinner.
我们在吃完饭时，开始下起大雨。
新知学习
课堂小结
当堂检测
学习目标
重点研讨
强调某个动作正在进行时，另一个动作突然发生，常用“过去进行时+when+一般过去时”结构。如：
I was walking in the street when he called me.
我正在街上走时，他突然喊我。
当主句、从句动作同时进行，从句动作的时间概念淡化，而主要表示主句动作发生的背景或条件时，只能用as。这时，as有“随着……”；“一边……，一边……”之意。
As years go by, China is getting richer and stronger.
随着时间一年一年过去，中国变得越来越富强了。
The little girls sang as they played. 小姑娘们一边玩，一边唱。
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
新知学习
课堂小结
当堂检测
学习目标
重点研讨
主语+was/were+现在分词
主语+was/were+not+现在分词
当……时候
新知学习
课堂小结
当堂检测
学习目标
重点研讨
一、用括号中单词的适当形式填空。
1. He asked me if I ____________ (go) fishing that afternoon.
2. When the bell rang, jenny _______________ (wait) in her seat.
3. She ___________ (make) her dress the whole afternoon.
4. When I came in the room, he _____________ (read) something
5. When we _______ (arrive) at the village, it was raining hard.
was going
was waiting
was making
was reading
arrived
新知学习
课堂小结
当堂检测
学习目标
重点研讨
二、用when、while或as完成下列句子。
It began to rain ______________ Linda was having supper.
2. What were you doing _______ Mr Jackson came into the classroom
3. _______________ you are driving, don’t use your mobile phone.
4. ____ years go by, China is getting better and better.
when/while/as
when
When/While/As
As