Unit 6 When was it invented？Section A Grammar Focus(4a-4c)课件【人教版2024秋九年级英语】

(共32张PPT)
（人教新目标版）九年级全
Period 3 Section A 4a - 4c
Unit 6
When was it invented
Learning objectives
Key words & phrases：
fridge, low, somebody, translate, lock, ring, earthquake, sudden, bell, biscuit, cookie, musical, instrument
all of a sudden
Key structure：
Active Voice:Alexander Graham Bell invented the telephone in 1876.
Passive Voice:The telephone was invented(by Alexander Graham Bell) in 1876.
fridge
n. 冰箱
Milk keeps much longer in a fridge.
牛奶在冰箱里保鲜得更久。
low
adj. 低的；矮的
a low wall/building/table
矮墙 / 建筑物 / 桌子
New Words
somebody
pron. 某人
n. 重要人物
Somebody told me she lives near here.有人告诉我她住在这附近。
translate
v. 翻译
He translated the letter into English.
他把这封信译成了英文。
相关词汇：translation n. 翻译
New Words
warn
v. 警告；告诫
warn sb. (not) to do sth.
I warn him not to touch the animals in the zoo.
我警告他在动物园里不要接触动物。
wolf
n. 狼
a pack of wolves
一群狼
New Words
lock
v. 锁上；锁住 n. 锁
① Did you lock the door
你锁门了吗？
② She turned the key in the lock.
她转动锁眼里的钥匙。
ring
v. (rang, rung) (使)发出钟声或铃声；
打电话
~ sb/sth (up)
I'll ring you up later.
我以后再给你打电话。
bell
n. 钟(声)；铃(声)
New Words
earthquake
n. 地震
Earthquakes are not common in this part of the world.
地震在这一带不常发生。
sudden
all of a sudden
adj. 突然(的)
There was a sudden loud noise.
突然有一声巨响。
突然；猛地
All of a sudden, he could see nothing.
他突然什么也看不见了。
New Words
biscuit
n. 饼干
cookie
n. 曲奇饼
New Words
musical
instrument
adj. 音乐的；有音乐天赋的
① musical talent/ability/skill
音乐天赋 / 才能 / 技巧
② musical styles/tastes
音乐风格 / 品味
相关词汇：music n. 音乐;乐曲
n. 器械；仪器；工具
Is he learning an instrument
他在学习演奏乐器吗？
New Words
1 What are the shirts
made of
2 When was it invented
这些衬衫是用什么做的？
它是什么时候发明的？
一般现在时的
被动语态
What's their difference
一般过去时的
被动语态
Lead in
Focus on
用法
Passive voice
(past tense)
Presentation
主语
+ 动词的过去分词
+ was/were
Ⅰ. 一般过去时被动语态的结构
1. The zipper was invented in 1893.
2. Tea was brought to Korea during the 6th and 7th centuries.
3. The light bulb was invented by Edison.
4. The telephone was invented by Alexander Graham Bell.
Presentation
II. 一般过去时被动语态的各类句式
肯定句: 主语 + was/were + 动词过去分词 (+ by +
动作执行者).
I was born in Beijing.
2. 否定句: 主语 + was/were + not + 动词过去分词
(+ by + 动作执行者).
The windows were not broken by him.
我出生在北京。
窗户不是被他打破的。
Presentation
- Was your homework finished yesterday
- Yes, it was. / No, it wasn't.
特殊疑问句: 疑问词 + was/were + 主语 + 动词过去分词
(+ by + 动作执行者)
- When was the company founded
- Two years ago.
—你昨天完成作业了吗？
—是的，完成了。/ 不，没有完成。
—这家公司是什么时候成立的？
—两年前。
3. 一般疑问句: Was/Were + 主语 + 动词过去分词
(+ by + 动作执行者)
Presentation
Ⅲ. 主动语态变被动语态的方法
Edison
the light bulb.
invented
The light bulb
主语 + 谓语动词主动语态(一般过去时) + 宾语
① 主动语态的宾语变成被动语态的主语。
was invented
by Edison.
怎样将这个句子变为被动语态呢？
② 主动语态的谓语动词变成“was/were+动词过去分词”形式。
③ 主动语态的主语变成by引导的介词短语放在主谓结构后面，有时可以省略。
Presentation
含有不定式的主动句变被动句
I'm encouraged by my mum to study hard at school.
For example：
在“主语 + 谓语 + 宾语 + 不定式”结构中，当动词是被动语态时，其后的不定式可保持主动语态。
My mum often encourages me to study hard at school.
当含有被动含义时，不定式本身能变成被动语态。
For example：
He never expected the book to be found (by them).
He never expected them to find the book.
Presentation
含有短语动词的主动句变被动句
The pets were taken care of by us.
For example：
短语动词是不可分割的整体，改为被动句后要保持其完整性，介词或副词不可遗漏。
We took care of the pets.
Presentation
含有双宾语的主动句变被动句
①将间接宾语变为主语，直接宾语保持不变。
②将直接宾语变为主语，间接宾语前须有介词(一般
是for或to)。
He gave me a book.
I was given a book by him.
The book was given to me by him.
For example：
间接宾语
直接宾语
Presentation
含有感官动词或使役动词的主动句变被动句
I heard him sing in the next room.
He was heard to sing in the next room.
The man makes the boy do his homework.
The boy is made to do his homework (by the man).
For example：
主动句中，感官动词（如：hear, see, watch等）或使役动词（如：make等）跟宾语后再跟省略to的动词不定式，改为被动句后，省略的to要加上。
Presentation
IV. 主动语态不能变成被动语态的情况
主动语态不能变成被动语态的情况
① He made himself a cup of coffee.
② They help each other.
We all want to be teachers.
The milk tastes slightly sour.
The elephant weighs five tons.
当宾语是反身代词或相互代词时
当宾语是不定式或V-ing时
当某些动词表示状态或结果时
当宾语表示数量、重量、大小或程度
Presentation
Rewrite the sentences using the passive voice.
P44
4a
1. They sold the fridge at a low price.
The fridge was sold at a low price.
2. Somebody stole my camera from my hotel room.
3. Where did you take the photos of these wolves
My camera was stolen from my hotel room (by somebody).
Where were the photos of these wolves taken
4. The guide warned them not to climb the mountain in bad
weather.
5. Different writers translated the book into different languages.
They were warned by the guide not to climb the mountain in bad weather.
The book was translated into different languages by different writers.
Practice
Complete the sentences with the correct forms of the verbs in the box.
P44
4b
eat like invite tell lock ring break bring
1. You _____________ to the party last night, weren't you Why
didn't you go
2. The earthquake happened all of a sudden, but luckily the
villagers _____________ to a safe place.
3. The door ___________ when we arrived, so we ______ the bell.
4. The students ________ not to eat or drink in class. But Ruby
_______ the rule when she started eating a biscuit in science
class.
5. The cookies __________ by the hungry kids in less than 20
minutes, and they really _____ them.
were invited
were brought
was locked
rang
were told
broke
were eaten
liked
Practice
Decide whether active or passive forms should be used in these sentences. Write the correct forms in the blanks.
P44
4c
The telephone _____________ (invent) by Alexander Graham Bell. He __________ (born) in 1847. Mr. Bell ________ (work) on the invention of the telephone with Thomas Watson. In 1875, Mr. Bell ____________ (learn) how to send musical notes through an instrument similar to a telephone. Finally, the telephone ____________ (invent) in 1876. The first sentence that ________ (say) on the telephone by Mr. Bell was “Mr. Watson, come here; I want to see you.” Today the telephone ________ (use) around the world.
was invented
was born
worked
learnt/learned
was invented
was said
is used
Practice
1. Computers have had a great influence on learning methods since they _______ into schools.
A. introduce B. introduced
C. are introduced D. were introduced
2. Hou Yi _____ magic medicine for shooting down
the nine suns, then Pang Meng tried to steal it.
A. gives B. has given C. gave D. was given
Practice
3. - Can he get the first prize in the race
- He _____ so, but he has just hurt his leg. It's
impossible now.
A. will expect to do B. is expected doing
C. has expected doing D. was expected to do
4. Last year, a new old people's home ________ in our community.
A. builds B. built
C. is built D. was built
Practice
5. Mr. Smith created a new game. Soon all his
students ________ rules to play it.
A. teach B. taught
C. are taught D. were taught
6. Last month, the little girl ______ well enough by
the neighbors while her parents were volunteering.
A. is cared for B. was cared for
C. will be cared for
Practice
8. Some groups _______ prizes in April, 2022 by the
Central Committee of the CYLC (共青团中央).
A. were given B. were giving
C. will be given
7. Few students could understand the sentence until it ________ by Miss Chen.
A. explained B. was explained
C. was explaining
Practice
一般过去时的被动语态
结构
句型
主语 + was/were + done
肯定句: 主语 + was/were + done (+ by...).
否定句: 主语 + was/were + not + done
(+ by...).
一般疑问句: Was/Were + 主语 + done
(+ by...)
特殊疑问句: 疑问词 + was/were + 主语 +
done (+ by...)
Summary
Can you use passive voice (past tense) correctly
Self-evaluation
Write some sentences about your favourite invention
using passive voice (past tense).
Homework