资源简介

(共21张PPT)
Unit8 Safe and sound
Grammar
Lead-in
1
2
3
I was working 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.
What were people doing when the earthquake happened
Lead-in
过去进行时
Lead-in
The past continuous tense
Discovering
◇Look at the sentences.
He was watching TV at nine yesterday.
We were sleeping when you came.
She was cooking dinner at that time.
They were playing football that afternoon.
You were reading when the telephone rang.
I was washing my car at this time yesterday.
What’s the rule
Discovering
◇Circle the right verb.
At this time yesterday, she is reading/was reading in the study.
What were you doing/did you do at nine o’clock last night
I am chatting/was chatting online with my friends when he came.
It was raining/were raining yesterday.
They were doing/did homework from 4:00 to 5:00 that afternoon.
Use the rule!
行
Discovering
Work out the rule!
Essential Structure
was / wasn’t
were / weren’t
+ doing
sb +
行
Discovering
Work out the rule!
◆We use “was + doing” with the pronoun _____, _____, _____ and _____.
◆We use “were + doing” with the pronoun _____, _____ and _____.
he she it I
you they we
Explaining
Usage
To talk about things that were happening at
a particular time in the past.
e.g. I was reading a book at 5 p.m. yesterday.
She wasn’t chatting online just now.
Were your parents watching TV at 9 last night
What were they discussing all day last Sunday
Communication show
1
2
3
at this time yesterday
the whole night yesterday
at 4 p.m. yesterday
Make sentences
当堂反馈
The boys were playing football at 4 p.m. yesterday.
The woman was shopping
The girl was reading
Explaining
Difficulty: when, while, as
They all mean “during the time that” and can be used to introduce a long action that started before a short action.
e.g. When/While/As Millie was watching TV,
Andy came into the sitting-room.
_______________
long action
____________________
short action
Tip
We use past continuous tense for the longer actions
and past tense for the shorter actions.
Explaining
Attention
1. When there are two long actions, we often
use “while”.
e.g. We were watching in fear while
the firemen were putting out the fire.
__________
long action
____________
long action
Explaining
Attention
2. If the shorter action is in the main clause, we can use “when, while or as” to join the clauses.
When/While/As Millie was watching TV, lightening hit a nearby building.
__
short action
Explaining
Attention
3. If the longer action is in the main clause, we
often use “when” to join the clauses.
e.g. Millie was watching TV when
lightning hit a nearby building.
__________________
long action
Comparison
Summary
◆Past continuous tense:
sb + was/were + doing
◆Present continuous tense:
sb + am/is/are + doing
◆Simple past tense:
sb + was/were/did
Complete a conversation
Communication show
◆Complete Part A on Page 113
Communication show
单击此处输入你的正文，文字是您思想的提炼，为了最终演示发布的良好效果，请尽量言简意赅的阐述观点。根据需要可酌情增减文字。
当堂反馈：
was snowingwere enjoying
was watchingwere visiting
was gettingwas reading
Complete Simon’s article
Communication show
◆Complete Part B on Page 113
Communication show
was snowing
was blowing
drew
was clearing
was getting/got
were enjoying
Practice
Complete the survey with your own information.
What were you doing in the
_____ class this morning
Chinese __________ __________
English __________ __________
Music __________ __________
Maths __________ __________
Pair work: Ask a partner and write his/her answers.
You
Your partner
Review grammatical rules learned in this class.
2. Preview Integrated skills.
Homework

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