Unit 8 Natural disasters Grammar 课件(34张PPT)

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名称 Unit 8 Natural disasters Grammar 课件(34张PPT)
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科目 英语
更新时间 2018-12-09 19:44:39

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Grammar
break
break down

because of
vi. 损坏;打破
(车辆或机器)出故障,坏掉
由于,因为
because of the bad weather
Because of the heavy rain
Words and expression review
What were you doing at 7 o’clock last night?
I was doing some housework.
I was having dinner.
Exercise
What were you doing between 7 o’clock and 9 o’clock yesterday?
I was doing my homework.
I was watching TV.
What was your father doing when you came back home yesterday?
He was cooking.
What was your brother doing
when you saw him half an hour ago?
He was mopping.
mop
What were they doing at this time last week?
They were shopping.
How about them?
They were having a picnic.
What were you doing at 7 o’clock last night?
What were you doing between 7 o’clock and 9 o’clock yesterday?
What were they doing at this time last week?
What was your father doing when you came back home yesterday?
过去进行时主要表示:
? 在过去某一时刻正在进行的动作
They were eating breakfast at 7:00 am
yesterday.
(b) I was writing a letter at this time
yesterday.
(c) --I phoned you last night, but you didn’t answer it. – I was having dinner with my grandparents.
2. 在过去某段时间一直在进行的动作
(a) From 1983 to 1998, he was teaching
at Yale.
(b) The boys were playing football the whole morning last Sunday.
2. 过去进行时的句式
(1) 基本结构:was / were + do-ing


(2) 否定式:was / were not + do-ing
was not = wasn’t were not = weren’t
I was doing some shopping.
People were running wildly.
I was not reading.
People were not running wildly.
(3) 疑问句:将 was / were 调到主语前
结构为:Was/Were+主语+do-ing?
回答:Yes, 主语+was/were.
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.
What was the girl doing just now?
She was running just now.
What were the boys doing just now?
They were jumping just now.
(4) 特殊疑问句的问答
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
was having
doing
A snowstorm hit Sunshine Town. Mr Wu is asking the students about it. Complete the conversation. (P 97)
A
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 ringing
Were
waiting
was walking
一、用所给动词的适当形式填空。
It was ten o’clock on Sunday morning.
The family were all in the garden. Mr
King and Mrs King ___________(sit)
under the tree, and they __________(talk)
and ________(laugh). Their son Jack
___________(read) an interesting book.
Their daughter Wendy __________ (play)
with their dog. Everyone was happy.
were sitting
were talking
laughing
was reading
was playing
Exercise
Using ‘while’ , ‘when’ and ‘as’
I was sleeping when it started to rain.
2. I was sleeping when the earthquake
took place.
3. People were running in all directions while pieces of glass and bricks were falling down.
4. As/when/ while I was trying to find way out, I suddenly heard some noise above me.
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.
when, while和as 用作连词,都有
“当……时候”的意思,引导时间状语
从句,注意它们的用法与区别:
他看书时睡着了。
He fell asleep when/while/as he was reading.
当我们跳舞时,一位陌生人走了进来。
When/While/As we were dancing, a stranger came in.
“主短从长”型:即主句表示的是一个短暂性动作,而从句表示的是一个持续性动作时,三者都可用。此时主句用一般过去时,从句用过去进行时。

He fell asleep when/while/as he was reading.

When/While/As we were dancing, a stranger came in.
2. “主长从短”型:即从句表示的是一个短暂性动作,而主句表示的是一个持续性动作时,通常用when。此时主句用过去进行时,从句用一般过去时。例如:
我们到达时正下着大雨。
It was raining hard when we arrived.
她给你打电话时你正在做什么?
What were you doing when she called you?
______ Simon ________ (arrive), Amy ____________ (get) some snow from the ground.
2. _______________ Suzy and Kitty
_____________(build) a snowman,
Millie ____________(take) photos.
3. Daniel ____ (fall) over ____________
he ____________ (make) a big snowball.
When
arrived
was getting
When/While/As
was building
was taking
fell
when/while/as
was making
Some Class1, Grade 8 students went to play in the snow. Complete the sentences. Then use when, while or as to connect the sentences. (P 98)
B
4. Peter _____________(hide) behind
a tree ______ a snowball ___
(hit) him.
5. ________________ Millie and her
classmates _____________ (play) in
the snow, Andy _____ (run) towards
them.
was hiding
when
When/While/As
were playing
hit
ran
3. “主长从长”型:即主、从句表示两个同时进行的持续性动作,常用while,且主句和从句皆常用过去进行时。
当我弟弟玩玩具的时候,我正在做作业。
I was doing my homework while my
brother was playing with his toys.
当我妈妈做饭的时候,我爸爸正在看报纸。
While my mother was cooking, my father was reading newspapers.
另外,在将来时从句中,常用when,句子的时态要求主将从现。
下周校长来这里参观时,我会和他谈谈此事。
When the headmaster comes here for a visit next week, I’ll talk with him about this.
主将
从现
若要表示主句动作伴随从句动作同时发展变化,有类似汉语“随着”的意思,英语习惯上要用as。
while也有“而” 、“却”的意思,表示对比。
There’s lots of rain in the southeast, while
there’s little in the northwest.
东南部雨量充足,而西北部则很少下雨。
随着时间的流逝,我的记忆力似乎越来越差。
As time goes by, my memory seems to get worse.
1. 过去进行时的用法
2. 连词 while, when 及as的用法
点击
1. When I came back yesterday evening, my brother _____ his homework.
[长沙]
A. is doing B. has done
C. was doing
2. --- I called you at 4:00 yesterday afternoon, but no one answered.
--- Sorry, I _____ with my friends at that time. [河南]
A. swim B. swam
C. will swim D. was swimming
3. --- I like the blue one best, please help me try it on.
--- I am sorry. I __________ about something else just now.
A. think B. thought
C. was think D. was thinking
1. 当我妈妈在做晚饭的时候,我在卧室
做作业。
I was doing my homework in the bedroom while my mother was cooking supper.
2. 当她下公交车时,我看到了她。
I saw her as/… she was getting off the bus.
3. 当我正看菜单的时候,那个男的走向我
们的桌子。
As/… I was reading the menu, the man
came to our table.
4. 当开始下雨的时候,我正和朋友们在
操场上打篮球。
I was playing basketball with my friends in the playground when it started to rain.
5. 我当时甚至不知道我正在做什么。
I did not even know what I was doing at that time.
1. Finish the exercises in Learning English.
2. To preview Integrated skills on
page 99-100
3. To preview the new words and
expressions