初中英语人教版（2024）八年级下册（2024）Section A示范课课件ppt

这是一份初中英语人教版（2024）八年级下册（2024）Section A示范课课件ppt，文件包含第3课时SectionA4a-4dpptx、过去进行时持续动作和一般过去时瞬间完成的动作mp4等2份课件配套教学资源，其中PPT共36页， 欢迎下载使用。
过去进行时（持续动作）和一般过去时（瞬间完成的动作）
1. I ______ 14 years ld this year.2. I ______ 13 years ld last year.3. Hw ______ the weather tday?4. Hw ______ the weather yesterday?5. They ______ gd friends. 6. They ______ gd friends three years ag.
Read the sentences. Underline the verbs which shw an nging actin in the past.
1)延续性动词和非延续性动词
延续性动词指动作可以延续一段时间，而不是瞬间结束。如：wrk、study、drink、eat等。
非延续性动词指动作极为短暂，瞬间结束。如：start、begin、hit、jump、knck等。
2)when表示“当……的时候”。从句中既可用延续性动词， 又可用非延续性动词，这些动词既可以表示动作，又可表示 状态。从句中动作既可和主句的动作同时发生，又可在主句 的动作之前或之后发生。如：
Mary was having dinner when I saw her.The by was still sleeping when his mther gt hme yesterday mrning.
3)while表示“在……的时候”、“在……期间”。它强调主句的动作与从句的动作同时发生或主句的动作发生在从句的动作过程中。while从句中必须是表示动作或状态的延续性动词
如果主句的动作在从句的动作过程中发生，从句常用进行时。
1. 概念：表示过去某一时刻或某段时间内正在进行的动作。2. 构成：was/were + 动词现在分词3. 用法： A: 表示某一时刻正进行的行为，与特定的过去时间状语 连用，常见的时间有：at 8 last night, at this time, at that time, at that mment 等。e.g. What were yu ding at 10 ’clck yesterday mrning? I was writing a letter t my father at that mment.
B：表示过去某段时间内正进行的动作。e.g. We were building a huse last winter. They were waiting fr yu yesterday.否定句和疑问句：e.g. We were nt sleeping at hme. Was he feeling well?
1)一般动词在词尾加-ing，如：
2)以不发音字母e结尾的动词， 先去掉e，再加-ing
cme→cming  
make→making  
write→writing
3)以重读闭音节结尾的动词，如果末尾以一个辅音字母结 尾，应先双写这个字母，再加-ing，x和w结尾的除外。
get→getting 
swim→swimming 
4)以字母y结尾的单词，直接加-ing。如：
5)以字母ie结尾的动词，变ie为y，再加-ing。
6)以元音字母加e结尾，或以e结尾，且e发音的动词， 直接加-ing。
   die→dying 
1) 一些动词，如see、 hear、 lve、 like、knw、 remember、 understand、have等表示感情、知觉和状态的词，一般不用 于进行时态。2) 在there和here引起的句子中，常用一般现在时代替现在进 行时。
e.g. Here cmes the bus.       There ges the bell.
1) 过去进行时表示过去某一时刻或某一段时间正在进行的动作， 而一般过去时则表示在过去某个时间发生过的动作或存在的 状态。如：
They were writing letters t their friends last night. 昨晚他们在写信给他们的朋友。
They wrte letters t their friends last night. 他们昨晚写了信给他们的朋友。
(没有说明信是否写完)
(表达了他们已写好的意思，整个写的过程已完成)
2) 当动作延续较长时间时或表示厌烦、赞美等感情色彩时， 常用过去进行时表示。如：
He was thinking mre f thers than f himself. 他考虑别人的比考虑自己的多。The by was always making truble then. 那时，他总是惹麻烦。
(表示说话者赞扬的口气)
(表示说话者厌烦的口气)
1. I did my hmewrk. The typhn landed n the cast.
I was ding my hmewrk when the typhn landed n the cast.=When the typhn landed n the cast, I was ding my hmewrk.=While I was ding my hmewrk，the typhn landed n the cast.
Cmbine each pair f sentences using when r while.
2. The pwer went ut. My father and I made dinner.
My father and I were making dinner when the pwer went ut.=When the pwer went ut, my father and I were making dinner.=While my father and I were making dinner, the pwer went ut.
g ut (火或灯光)熄灭
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.=While Kate was writing a letter, her brther called t warn her f the strm.
warn sb f/abut sth警告/提醒某人注意某事
4. My parents packed the supplies. I mved ur things ff the flr.
5. I slept sundly. It rained cats and dgs.
While my parents were packing the supplies, I was mving ur things ff the flr.=My parents were packing the supplies while I was mving ur things ff the flr.
I was sleeping sundly while it was raining cats and dgs.=While it was raining cats and dgs, I was sleeping sundly.
rain cats and dgs 下倾盆大雨
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.
hide frm sb/sth躲避某人/某物
（形容词）厚的；浓密的
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.
find sb/sth ding sth发现某人/某物正在做某事
=each ther 互相；彼此
/tɔːˈneɪdəʊ/（名词）龙卷风；旋风
A: What were yu ding when the trnad hit?B: My family and I were hiding in a safe rm.A: What were yu ding while yu were waiting there?B: Oh, while I…
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.
Language pints
(1)[不可数名词]电力供应 pwer cut/failure 停电Parts f the area had pwer cuts because f the strms. 这个区域的部分地区由于暴风雨而停电了。The pwer came back n. 电力恢复了。
pwer n. 电力供应；能量；力量
(3)[不可数名词]力量The ship was helpless against the pwer f the strm. 那艘船只能任凭强大的暴风雨肆虐。
(2)[不可数名词]能量nuclear/wind/slar pwer 核能/风能/太阳能Slar pwer is a clean energy surce. 太阳能是一种清洁能源。
由 “sund (adj. 酣畅的；可靠的；透彻的)+-ly(副词后缀)” 构成The baby slept sundly all night. 宝宝整晚都睡得很香甜。Experimental data sundly supprted his thery. 实验数据可靠地支持了他的理论。The team was sundly defeated. 该队一败涂地。
sundly adv. (睡觉) 酣畅地；可靠地；完全彻底地
lkup 抬头看 ，常与介词frm连用，意为“从某物上抬头”。
She lked up frm her bk as I entered the rm. 我进房间时，她从书本上抬起头来看了看。
lk after 照顾lk arund 环顾lk thrugh 快速查看；浏览lk frward t 盼望lk fr 寻找lk like 看起来像 lk ver 查看；检查lk ut 小心
if 在此引导宾语从句(宾语从句应用陈述语序)，常用于ask、knw、find ut、wnder等动词(短语)之后。
if cnj. 是否
I wnder if it will rain tmrrw. 我想知道明天是否会下雨。D yu knw if the train arrives n time? 你知道火车是否 准点到达吗？