人教版九年级全册Unit 6 When was it invented?Section A Grammar Focus-4c课件(共25张PPT)

(共25张PPT)
Unit 6
When was it invented
Grammar Focus-4c
the light bulb
It was invented by Thomas Edison.
Who was the light bulb invented by
自学反馈
We bought some books.
主动句与被动句之间的转换
Some books were bought ( by us )
主语 谓语动词主动语态的过去式 宾语
主语 谓语动词被动语态的过去分词 介词+ 宾语
The important thing in life is to have a great aim, and the determination to attain it
自学反馈
过去式被动语态的几种句型
1. 肯定句 主语 + be + 过去分词 + (by…)
A sweet song was sung by her on the stage.
2 否定句 主语 + be + not +过去分词 + (by…)
3 一般疑问句 Be + 主语 +过去分词 + (by…)
A sweet song wasn’t sung by her on the stage.
Was a sweet song sung by her on the stage
4 特殊疑问句 疑问词 + be + 主语 +过去分词 + (by…)
Where was a sweet song sung by her
The important thing in life is to have a great aim, and the determination to attain it
【例题】请判断下列结构是否为被动语态的谓语结构。
1. are done A. 是 B. 不是
【巩固】
2. were doing A. 是 B. 不是
3. is done A. 是 B. 不是
4. are doing A. 是 B. 不是
5. has studied A. 是 B. 不是
A
B
A
B
B
The important thing in life is to have a great aim, and the determination to attain it
Grammar Focus
When was the zipper invented It was invented in 1893.
Who was it invented by It was invented by Whitcomb Judson.
When was tea brought to Korea It was brought to Korea during the 6th and 7th centuries.
What is the hot ice-cream scoop used for It’s used for serving really cold
ice-cream.
Active Voice: Alexander Graham Bell invented the telephone in 1876. Passive Voice: The telephone was invented (by Alexander Graham Bell) in 1876.
The important thing in life is to have a great aim, and the determination to attain it
Grammar Focus
What did you find out
When was the zipper invented It was invented in 1893.
Who was it invented by It was invented by Whitcomb Judson.
When was tea brought to Korea It was brought to Korea during the 6th and 7th centuries.
What is the hot ice-cream scoop used for It’s used for serving really cold ice-cream.
Active Voice : Alexander Graham Bell invented the telephone in 1876. Passive Voice: The telephone was invented (by Alexander Graham Bell) in 1876.
主动语态和被动语态的概念和转换
主动语态：主语Alexander Graham Bell是动作invent 的执行者。
主动语态
被动语态
被动语态：主语The telephone是动作invent 的承受着。
Alexander Graham Bell invented the telephone in 1876.
The telephone was invented (by Alexander Graham Bell) in 1876.
主动语态
被动语态
主(执行者)
谓
宾(承受者)
①
③
主(承受者)
谓
by(执行者)
②
The important thing in life is to have a great aim, and the determination to attain it
Look at the pictures and make sentences in the passive voice.
The tree was planted five years ago.
tree, plant, five years ago
praise, mother, just now
The boy was praised by his mother just now.
books, carry, classroom, in the morning
The books were carried into the classroom by the boy in the morning.
flowers, water, yesterday
The flowers were watered by the girl yesterday.
The classroom is cleaned by the students every day.
The tea was invented by Shen Nong 5000 years ago.
一般现在时被动语态：
主语 + ______________ + ________
一般过去时被动语态：
主语 + ______________ + ________
am / is / are
过去分词
was / were
过去分词
Grammar
The important thing in life is to have a great aim, and the determination to attain it
1.肯定句: 主语 + was/were + V-ed + (by…)
The book was bought by Tom.
2.否定句: 主语 + was/were + not + V-ed + (by…)
3.一般疑问句: Was/Were + 主语 + V-ed + (by…)
The book was not bought by Tom.
Was the book bought by Tom.
特殊疑问句: 疑问词 + was/were + 主语 + V-ed + (by…)
Who was the book bought by
一般过去时被动语态结构:“主语+ was /were +及物动词的过去分词(+by+动作的执行者).”常见几种句型结构：
一般过去时被动语态句子结构
The important thing in life is to have a great aim, and the determination to attain it
用 法 示 例
表示过去某一具体时间发生的动作，且句子的主语是谓语动词动作的承受者
The house was built in 1990.
这所房子建于1990年。
讲述发生在过去的动作，且不知道动作的执行者
He was honored with the name
“ Father of Hybrid Rice”.
他被授予“杂交水稻之父”的称号。
一般过去时被动语态
考点一：基本用法
The important thing in life is to have a great aim, and the determination to attain it
研究分享
Group Work
How can you change an active sentence into a passive one
The important thing in life is to have a great aim, and the determination to attain it
4a
They put off the meeting because
of the weather.(变为被动语态）
The meeting was put off because of the weather.
注意：有些短语动词相当于及物动词，变为被动句时介词或副词不能去掉。
The important thing in life is to have a great aim, and the determination to attain it
注意：含有双宾语的主动句变为被动句时，
通常把指“人”的间接宾语变为主语，
指“物”的直接宾语保留不变；如果把
指“物”的直接宾语变为主语，则在间接
宾语前加to或for。
I was given an e-dictionary yesterday.
An e-dictionary was given to me yesterday.
My aunt gave me an e-dictionary yesterday.（变为被动语态）
间接宾语
直接宾语
The important thing in life is to have a great aim, and the determination to attain it
注意：主动句中感官动词see / hear / watch / feel等和使役动词make / let / have等后跟省略to的动词不定式，变为被动语态时应加上不定式符号to。
I saw a heavy man enter the house.（变为被动语态）
A heavy man was seen to enter the house.
The important thing in life is to have a great aim, and the determination to attain it
4b
Complete the sentences with the correct forms of the verbs in the box.
eat lock like ring invite break tell bring
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.
were invited
were brought
The important thing in life is to have a great aim, and the determination to attain it
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.
was locked
rang
were told
broke
were eaten
liked

eat lock like ring invite break tell bring
The important thing in life is to have a great aim, and the determination to attain it
注意：系动词、不及物动词或某些短语动词（happen, take place, come true, fall asleep…）没有被动语态。
布朗先生发生了什么事？（译成英语）
What happened to Mr. Brown
你的想法听起来不错
Your idea sounds a good one .
The important thing in life is to have a great aim, and the determination to attain it
这种纸很好写（译成英语）
This kind of paper writes well.
注意：某些动词（如write, wash, sell, read, clean, drive等）作不及物动词且表示主语质地、性能、自身特征等属性时，通常用主动形式表示被动被动意义。
The important thing in life is to have a great aim, and the determination to attain it
将下列句子变为被动语态。
1. He chose six story books the other day.
Six story books _____ _______ by him the other day.
2. Uncle Lee gave Jack a large cake for he painted the wall wonderfully.
Jack _____ _____ a large cake for he painted the wall wonderfully.
Practice
was given
were chosen
1
The important thing in life is to have a great aim, and the determination to attain it
3. A mouse ate half of the cake last night.
Half of the cake _____ _____ by a
mouse last night.
was eaten
将下列句子变为主动语态。
4. Were these machines invented by Edison
_____ Edison _______ these machines
Did invent
The important thing in life is to have a great aim, and the determination to attain it
4c
Decide whether active or passive forms should be used in these sentences. Write the correct forms in the blanks.
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
was invented
was born
worked
learned
The important thing in life is to have a great aim, and the determination to attain it
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 said
is used
The important thing in life is to have a great aim, and the determination to attain it
1、一般过去时被动语态：
was/were +过去分词.
2、强调过去动作的承受者。
Summary
Find out information about an invention you would like it and write sentences below.
Invention:
When:
Who:
Purpose:
Homework