资源简介

(共39张PPT)
Unit 5
Nature's Temper
人教版八年级下册
Section A (4a-4d)
01
Learning goals
Learn new words: power, soundly, thick, beat, hide, tornado.
Talk about a continuous action at a particular time in the past.
Learning goals
1
2
02
Warming up
1. I________ 16 years old this year.
2. I________ 15 years old last year.
3. How________ the weather today
4. How________ the weather yesterday
5. They________ good friends.
6. They________ good friends three years ago.
am
was
is
was
are
were
Fill in the blanks with “be”.
写出过去式
grow
grew
tell
take
think
get
ring
shop
told
took
thought
got
rang
shopped
become
run
fall
buy
make
cut
sleep
ran
fell
bought
made
cut
became
slept
mean
fly
hear
eat
go
leave
meant
flew
heard
ate
went
left
What was/were... doing at 6:00 last night
I/He/She was/ They were...
03
Grammar
What were you doing while it was snowing heavily I was travelling on the train then.
What were your family doing when the typhoon hit My children and I were reading together.
When my neighbour called, my family were having dinner. We were driving home when the strong winds started. While we were driving home, the strong winds started. It was raining hard while we were driving back. Read the sentences. Underline the verbs which show an ongoing action in the past.
4a
以when和while引导的时间状语从句
1.
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：work、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、knock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 boy was still sleeping when his mother got home yesterday morning.
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：
The weather was fine while we were in Beijing.
She called while I was out.
While the boys were playing football, it rained.
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。如:
1. 概念：表示过去某一时刻或某段时间内正进行的动作。
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 moment 等。
过去进行时
2.
e.g.What were you doing at 10 o’clock yesterday morning
I was writing a letter to my father at that moment.
B：表示过去某段时间内正进行的动作。
e.g. We were building a house last winter.
They were waiting for you yesterday.
否定句和疑问句：
e.g. We were not sleeping at home.
Was he feeling well
现在分词的构成
3.
1)一般动词在词尾加-ing，如：
go→going
2)以不发音字母e结尾的动词， 先去掉e，再加-ing
come→coming
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
show→showing
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。
carrying
playing
studying
die→dying
lie →lying
see→seeing
be→being
1)一些动词，如see、 hear、 love、 like、know、 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。
使用进行时态的注意事项
4.
e.g. Here comes the bus.
There goes 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：
过去进行时和一般过去时的区别
5.
They were writing letters to their friends last night.
昨晚他们在写信给他们的朋友。
They wrote letters to 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、赞美等感彩时，常用过去进行时表示。如：
He was thinking more of others than of himself.
他考虑别人的比考虑自己的多。
The boy was always making trouble 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)
现在进行时
含义：表示现在正在进行的动作。
结构：
is/am/are + doing
例句：
I am having an English class.
过去进行时
含义：表示过去某个时刻正在进行的动作。
结构：
was/were + doing
例句：
I was having an English class at this time yesterday.
— Why didn’t you open the door for me, Jim
— I clothes in the bathroom. I didn’t hear the knock.
A. am washing B. have washed
C. was washing D. washed
中考链接
——吉姆，你为什么没有给我开门？
——（当时）我在浴室洗衣服，没有听到门铃声。
过去的某个时间，要用过去进行时。
Combine each pair of sentences using when or while.
4b
1. I did my homework. The typhoon landed on the coast.
2. The power went out. My father and I made dinner.
3. Kate wrote a letter. Her brother called to warn her of the storm.
I was doing my homework when the typhoon landed on the coast.
The power went out while my father and I were making dinner.
Kate was writing a letter when her brother called to warn her of the storm.
go out(火或灯光)熄灭
warn sb. of... 警告某人…
Combine each pair of sentences using when or while.
4b
4. My parents packed the supplies. I moved our things off the floor.
5. I slept soundly. It rained cats and dogs.
While my parents were packing the supplies, I was moving our things off the floor.
When I slept soundly, it was raining cats and dogs.
rain cats and dogs 下倾盆大雨
Complete the passage with was, were, when, or while.
4c
When Jenny looked up, thick black clouds were forming in the sky, and the rain beating against their roof.
“Quick, this way,” said Dad.
The family ran to the safe room at once. they were waiting, Jenny’s little sister started to cry. Dad gave her some chocolate and told her that they hiding from an angry lion. Soon, she was laughing again.
At last, the storm passed. they stepped outside, they found the sun shining. People were asking one another if they were safe while some starting to clear the streets. Jenny smiled. The tornado was scary, but it also brought everyone closer together.
was
were
While
When
were
04
Practice
Imagine that you are a reporter. Interview a member of Jenny’s family and find out what he or she was doing around the time of the tornado.
4d
A: What were you doing when the tornado hit
B: My family and I were hiding in a safe room.
A: What were you doing while you were waiting there
B: Oh, while I…
05
Language points
(1)[不可数名词]电力供应
power cut/failure 停电
Parts of the area had power cuts because of the storms.
这个区域的部分地区由于暴风雨而停电了。
The power came back on. 电力恢复了。
power n. 电力供应；能量；力量
(1)The power went out. 停电了。(教材 P45 4b)
(3)[不可数名词]力量
The ship was helpless against the power of the storm.
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/solar power核能/风能/太阳能
Solar power is a clean energy source. 太阳能是一种清洁
能源。
由 “sound(adj. 酣畅的；可靠的；透彻的)+-ly(副词后缀)” 构成。
The baby slept soundly all night. 宝宝整晚都睡得很香甜。
Experimental data soundly supported his theory. 实验数据可靠地支持了他的理论。
The team was soundly defeated. 该队一败涂地。
(2) I slept soundly. 我睡得很酣畅。(教材 P45 4b)
soundly adv. (睡觉) 酣畅地；可靠地；完全彻底地
(3)When Jenny looked up, thick black clouds were forming in the sky, and the rain was beating
against their roof. 当珍妮抬头看时，天空中正在形成厚厚的乌云，雨水敲打着他们的屋顶。(教材 P45 4c)
look after 照顾 look around 环顾 look through 快速查看；浏览 look forward to 盼望 look for 寻找
look like 看起来像
look over 查看；检查
look out 小心
look up抬头看 ，常与介词from连用。
She looked up from her book as I entered the room. 我进房间时，她从书本上抬起头来看了看。
if 在此引导宾语从句(宾语从句应用陈述语序)，常用于ask、know、find out、wonder等动词(短语)之后。
if conj. 是否
I wonder if it will rain tomorrow. 我想知道明天是否会下雨。
Do you know if the train arrives on time 你知道火车是否准点到达吗？
(4) People were asking one another if they were safe while some were starting to clear the streets. 当一些人开始清理街道时，人们在互相询问是否安全。(教材 P45 4c)
06
Summary
过去进行时的基本用法
过去进行时的基本句式
过去进行时
语法知识导图
过去进行时和一般过去时的区别
was/were+动词-ing
①表示过去某一段时间内一直进行的动作，常与the whole day、all day yesterday等连用
②表示过去某一时刻正在进行的动作，常与at 3 o’clock yesterday、aftenoon、at this time yesterday等连用
07
Homework
What were you doing at these times last Sunday Write them down.
9:00, 11:00, 13:00, 17:00, 19:00, 21:30
汇报人：WPS
See You!

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