初中英语人教版（2024）八年级下册（2024）Section A背景图ppt课件

这是一份初中英语人教版（2024）八年级下册（2024）Section A背景图ppt课件，共38页。PPT课件主要包含了过去进行时的结构，过去进行时的用法，标志性的时间点，单项选择等内容，欢迎下载使用。
First, let’s take a lk at the park’s security cameras (监控摄像头). When the typhn was hitting the city, what were the peple in the park ding?
were playing
was reading
were playing
When the typhn hit,
1. 台风“hit”（袭击）的这个瞬间，大家观察一下这些人正在做什么？表示他们“正在做”的那个动作，在英语里都是什么形式？
动词 + ing (ding)
2. 这些“动词+ing”前面是不是都站着“保镖”？这些“保镖”是谁？
► the tw ld men were playing chess.► the man was jgging in the park.► the man was reading newspaper n the bench.► the by was lying under a tree.► the tw kids were playing with sand.
3. 谁知道，什么时候用was？什么时候用were？观察一下主语。
单数主语用was；复数主语用were
4.这些事情是发生在现在，还是发生在过去？你是从哪里看出来的？
过去某个时刻 (the typhn hit)
We were driving hme when the strng winds started.It was raining hard while we were driving back.
Accrding t the verbs in these sentences,What tense are they?
—— past cntinuus tense.
过去进行时：表示过去某一时刻或某一段时间内正在进行或发生的动作。
What’s the difference between these sentences?
be+v-ing is used fr actins happening nw
was/were+v-ing is fr actins that were happening in the past
present cntinuus tense（现在进行时）
past cntinuus tense (过去进行时)
基本结构： 否定形式： 一般疑问句： 肯定回答： 否定回答： 特殊疑问句：
主语+was/were + ding +其他.
主语+wasn’t/weren’t +ding+其他.
Was/Were+主语+ding+其他？
Yes, 主语+was/were.
N, 主语+wasn’t/weren’t.
特殊疑问词+ was/were +主语+ding+其他？
1. 精准的时间点：定格动画 想象把时间轴上的某一刻按下暂停键，那一刻正在发生什么。
At 10：00 a.m. yesterday, I was having a meeting.
2.过去某一段时间内一直在做
They were cleaning the rm the whle mrning.
3. 描绘氛围:常用于故事的开头，铺设背景，让读者身临其境。
The wind was blwing and the rain was beating against the windws. An ld wman was sitting by the fire.
1. 表达过去某一具体时刻，正在做的事。
昨晚8点，我正和家人一起看电视。
铃声响起时，她正在教室里看小说。
At 8 'clck last night, I was watching TV with my family.
When the bell rang, she was reading a nvel in the classrm.
2. 过去某段时间，一直持续做的事
昨天晚上7点到9点，我一直在做数学作业。
整个周末，他们都在为期末考试做准备。
Frm 7 t 9 yesterday evening, I was ding my math hmewrk.
All weekend, they were preparing fr the final exam.  
3. 两个过去动作同时发生（when/while引导）
我正在看书，而我的父母正在看电视。
铃响的时候，我们正在上英语课。
I was reading a bk while my parents were watching TV.
We were having an English class when the bell rang.
1. at + 具体时刻 + 过去时间at 8：00 last night（昨晚8点）at this time yesterday（昨天的这个时候）at that mment（在那个时刻）at nn yesterday（昨天中午）
What were yu ding at 9：00 last night？At this time yesterday， I was flying t Shanghai.
2.时间段 + 过去时间all day yesterdayall mrning/afternn/eveningthe whle nightfrm 2 t 4 yesterday afternnduring the summer vacatin
I was wrking in the garden all afternn yesterday.They were playing chess frm 2 t 5 yesterday.
• 结构： 主语 + was/were ding... when + 主语 + did...
典型用法1：主句（进行时）+ when + 从句（一般过去时）
I was walking hme when it started t rain.We were having dinner when the lights went ut.
典型用法2：主句（进行时）while + 从句（进行时）
结构： 主语 + was/were ding... while + 主语 + was/were ding...
含义： 两个动作在过去某段时间内并行发生。
• 含义： 一个动作正在进行，突然发生了另一件事。
I was studying while my brther was playing vide games.
What are the differences between when and while when used in past cntinuus tense?
I did my hmewrk. The typhn landed n the cast.The pwer went ut. My father and I made dinner.Kate wrte a letter. Her brther called t warn her f the strm.My parents packed the supplies. I mved ur things ff the flr.I slept sundly. It rained cats and dgs.
4b Cmbine each pair f sentences using when r while.
1.I did my hmewrk. The typhn landed n the cast.→ I was ding my hmewrk when the typhn landed n the cast.
2.The pwer went ut. My father and I made dinner.→ My father and I were making dinner when the pwer went ut.
3.Kate wrte a letter. Her brther called t warn her f the strm.→ Kate was writing a letter when her brther called t warn her f the strm.
4.My parents packed the supplies. I mved ur things ff the flr.→ While my parents were packing the supplies, I was mving ur things ff the flr.
5.I slept sundly. It rained cats and dgs.→ While I was sleeping sundly, it was raining cats and dgs.
用when/while填空
1. ______ I was reading a bk, my best friend called me.2. He was ding his hmewrk ______ the light went ut suddenly.3. ______ we were having a picnic, it began t rain heavily.4. My mm was cking ______ I gt hme frm schl.5. ______ the teacher came int the classrm, the students were talking ludly.
6. She was listening t music ______ her brther was playing the pian.7. ______ I saw him, he was running n the playgrund.8. They were playing basketball ______ it started t snw.9. ______ my father was watching TV, I was ding my hmewrk.10. I was walking in the park ______ I met an ld friend.
1. Tilly Smith _______ alng the beach with her family when she _______ the strange waves. A. walked; nticed B. walks; ntices C. was walking; nticed D. is walking; ntices2. The children _______ games in the playgrund frm 3 p.m. t 4 p.m. yesterday. A. play B. played C. are playing D. were playing
3. He was reading a strybk _______ the light went ut suddenly. A. thugh B. when C. after D. s4. ----________ did the accident happen, Mr. Wang? ----While we _______ a math class yesterday mrning. A. While; have had B. While; have C. When; were having5. The girls _______ s happily that they didn`t see the teacher walking twards them. A. were chatting B. chat C. have chatted D. will chat
与一般过去时的“爱恨情仇”
一般过去时： 把动作视为一个完整的、已经结束的事实。它关注“做过了”这个结果。
I read a bk last night.
过去进行时： 把动作视为一个未完成的、持续的片段。它关注“过程”本身
I was reading a bk last night.
at 7:00 last night, at that mment, while…
was/were + 现在分词 (ding)
都表示过去发生的动作或状态
过去某一时刻/时段正在进行的动作，强调动作的过程/状态
yesterday, last week, in 2020, just nw, ag…
一般过去时和过去进行时的区别
过去发生的动作，已经完成，强调动作的结果/事实
I cleaned my rm yesterday.（昨天我打扫了房间——强调过去发生了这个动作,已做完）
I was cleaning my rm at 5 yesterday.（昨天5点我正在打扫房间——强调当时正在做）
Lk at the picture. What can yu see utside the windw?
What d yu think the family were ding when trnad came?
I think they were staying tgether in a safe part f the huse t prtect themselves.
4c Cmplete the passage with was, were, when, r while.
When Jenny lked up, thick black cluds were frming in the sky, and the rain ______ beating against their rf.“Quick, this way,” said Dad.The family ran t the safe rm at nce. ______ they were waiting, Jenny's little sister started t cry. Dad gave her sme chclate and tld her that they ______ hiding frm an angry lin. Sn, she was laughing again.At last, the strm passed. ______ they stepped utside, they fund the sun shining. Peple were asking ne anther if they were safe while sme ______ starting t clear the streets. Jenny smiled. The trnad was scary, but it als brught everyne clser tgether.
Hw was the weather befre the trnad hit?Where were yur family?
What were yu ding when the trnad came?Were yu afraid f the trnad?Hw did yur family members cmfrt each ther?...
What was the weather like?What did yur neighbrs say t each ther?...
What questins may the interviewer ask?
1.What disaster did Jenny's family meet?2.Were they safe during the disaster? Hw d yu knw? Wh played a key rle in the prcess?3.What did Jenny's father cmpare the trnad t? D yu think a trnad is like an angry lin? In what way are they alike?
Read again and answer
They met a trnad.
Yes, they were.
He cmpared the trnad t an angry lin.
They ran t the safe rm.
Jenny's father played a key rle.
Bth are very fierce and dangerus.
4. What d yu think f Jenny's father?5.Why des the writer say "The trnad was scary, but it als brught everyne clser tgether."?
Because it made the family care mre abut each ther.
4d Imagine that yu are a reprter. Interview a member f Jenny’s family and find ut what he r she was ding arund the time f the trnad.
"What questins wuld yu ask?"
ReprterWhat were yu ding when the trnad hit?What were yu ding while yu were waiting in the safe rm?Hw did yu feel at that mment?Were yu scared?
Family member I was ... when I was ..., ... happened.We were all ... tgether.I felt scared / calm / wrried, but we were safe.
1. 龙卷风来袭时Jenny: I saw thick black cluds and rain beating the rf.Family: We ran t the safe rm right away.2. 在安全屋等待时Sister: She cried because she was scared.Dad: He gave her chclate and tld her we were hiding frm a lin t calm her dwn.Result: She laughed again quickly.3. 风暴过后Scene: The sun was shining; peple checked n each ther and started clearing streets.Feeling: The trnad was scary, but it brught peple clser.