(共30张PPT)
人教新目标版 九年级（全）
Unit6 When was it invented
Period 3 Section A
Grammar focus-4c
语法课优质课
Presentation
Learning aims
1.学习本课新词汇:fridge, low, somebody, translate, lock, ring, earthquake,
sudden, bell, biscuit, cookie, musical, instrument, at a low price, advise sb. to do, translate... into..., all of a sudden
掌握句型：They sold the fridge at a low price.
Somebody stole my camera from my hotel room.
The earthquake happened all of a sudden, but luckily the villagers were
brought to a safe place.
2.归纳一般过去时被动语态的结构和用法。
3. 能够把主动语态的句子变成被动语态，同时把被动语态的句子变成主动语态。
4. 能够用被动语态表达自己的态度。
Presentation
Revision
Pre-grammar
Look and say.
Look at the pictures and rewrite the sentences.
The students clean the classroom every school day.
The classroom is cleaned by the students every school day.
The farmers grow tea plants on the sides of mountains.
Tea plants are grown on the sides of mountains by the farmers.
How delicious the soup is! Who cooked it
Mom cook the soup.
It was cooked by Mom.
Presentation
Revision
Pre-grammar
Look and say.
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.
Presentation
Revision
Talk about the following inventions using the patterns:
A: When was it invented
B: It was invented in1976.
A: Who was it invented by
B: It was invented by Steven.
A: What is it used for
B: It is used for ...
Pre-grammar
Look and say.
Presentation
Complete the sentences according to the Chinese and pictures:
The cars _____ _________in 1885.
汽车在1885年被发明。
Flowers ______ _____in the garden last year.
去年鲜花被种在花园里。
The man _____ ___to the hospital an hour ago.
一小时前那个人被送到医院去了。
were invented
were planted
was sent
Revision
Pre-grammar
Look and say.
Presentation
New words
Pre-grammar
Listen and repeat.
fridge
low
somebody
translate
lock
ring
earthquake
sudden
all of a sudden
bell
biscuit
cookie
musical
instrument
n. 冰箱
adj. 低的；矮的
pron. 某人 n. 重要人物
v. 翻译
v. 锁上；锁住 n. 锁
v. (rang, rung) 发出钟声或铃声；打电话
n. 地震
adj. 突然(的)
突然；猛地
n. 钟(声)；铃(声)
n. 饼干
n.曲奇饼
adj. 音乐的；有音乐天赋的
n. 器械；仪器；工具
Presentation
While-grammar
Look and translate.
Grammar Focus
Read the sentences and translate them.
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. Presentation
Practice
Fill in the blanks according to grammar focus.
1. 拉链是什么时候被发明的？______ _____ the zipper ________
2. 它于1893年被发明。It ______ _________ in 1893.
3. 它是由谁发明的？ ______ _____ it invented ______
4. 是由惠特科姆 贾得森发明的。It ____ _________ ___ Whitcomb Judson.
5. 茶叶什么时候被带到朝鲜的？______ ____ tea _________ to Korea
6. 是在六到七世纪之间被带到朝鲜的。
It _____ _______ to Korea ________the 6th and 7th centuries.
7. 热冰淇淋勺用来做什么？What ___ the hot ice-cream scoop_____ ____
8. 它用来盛很凉的冰淇淋。It’s _____ ____ ________ really cold ice-cream.
9. 贝尔于1876年发明了电话机。Alexander Graham Bell _________ the telephone
in 1876.
10. 电话机在1876年被贝尔所发明。The telephone _____ ________ ___
Alexander Graham Bell in 1876.
When was invented
was invented
Who was by
was invented by
When was brought
was brought during
is used for
used for serving
invented
was invented by
While-grammar
Look and translate.
Presentation
While-grammar
Grammar Focus
探究语法规律
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.
探究一：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
Presentation
Practice
While-grammar
Look and translate.
将下列句子改为被动语态
We planted trees last week.
主动语态变被动语态解题步骤
1. 找宾语 ----即动作的承受者
2. 判断宾语的单复数 ----即be动词的单复数.
3.把谓语改成was/were+V.过去分词
5. 修改原句的主语 ----即by+ 主语/ 宾语.
宾变主,主变宾,前加by
动变被,看清be, 结构分别be+ pp
Tree was planted by us.
4. 判断新主语的单复数:确定be动词
的单复数
He washed his car yesterday.
His car was washed (by him)yesterday.
Did you clean up your room last night
Was your room cleaned up last night
He saved the lives of the children.
The lives of the children were saved
by him.
Presentation
While-grammar
Grammar Focus
探究语法规律
探究一：主动语态和被动语态的概念和转换
主动语态变为被动语态的注意事项：
几种特殊的被动语态
① “不及物动词 + 介词/ 副词”(介词/副词不与动词拆开或漏掉)
e.g. The man cut down the tree. →
② 在主动句中, 使役动词(如make等)和感官动词 (如see, watch, notice, hear等)后面常接不带to的动词不定式作宾语补足语; 但在被动句中，这些词后面的动词不定式都带to。
e.g. We heard Mary sing in the next room. →
感官动词
一感二听三让四看
主动句中to 离开，被动
句中to回来
We often heard Kate sing in the room.
The tree was cut down by the man.
Mary was heard to sing in the next room.
Kate was often heard to sing in the room (by us).
Presentation
While-grammar
Grammar Focus
探究语法规律
探究一：主动语态和被动语态的概念和转换
③ 含有双宾语的主动句变被动句时，如果直接宾语(物)作主语，则需在间接宾语(人)前加介词to或for。
e.g. Peter gave me a pen.
间接宾语
直接宾语
a. I was given a pen by Peter.
④ 有些动词常用其主动形式表示被动意义，如sell, wash, write等和表示感觉、知觉的系动词feel, sound, taste, smell等。
e.g. This kind of dress sells well. The fish tastes very delicious.
含有双宾语的主动句变为被动语态时，通
把指 “人”间接宾语变为主语，而指“物
的直接宾语则不变
如果要把指“物”的直接宾语变为主语，则在间接宾语前加to或for。
b. A pen was given to me by Peter.
Some food was brought to him (by me).
I brought him some food.
Presentation
While-grammar
Grammar Focus
探究语法规律
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. 探究二：一般过去时被动语态谓语动词的构成
主语+was\were+ done(过去分词)+其他成分
Tom made the new machine last week.
The new machine ______ _______ by Tom last week.
was made
What did you find out
Presentation
While-grammar
Grammar Focus
探究语法规律
探究二：一般过去时被动语态谓语动词的构成
一般过去时的被动语态的句式结构
肯定句 主语+was/were+及物动词的过去分词（ + by…）
否定句 主语+was/were + not+及物动词的过去分词（+ by…)
疑问句 Was/Were+主语+及物动词的过去分词（+by …)
特殊疑问词+was/were+主语+及物动词的过去分词（ +by...)
2. 一般过去时的被动语态的基本用法
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。
Presentation
Practice
While-grammar
1.The young man saved the lives of the children.
2. The villagers didn’t find the lost boy at last.
3. Did you clean up your room last night
4. My mother bought me a new CD player.
将下列句子改为被动语态。
The lives of the children were saved by the young man.
The lost boy wasn’t found by the villagers at last.
Was your room cleaned up last night
A new CD player was bought for me by my mother.
Presentation
Practice
Post-grammar
4a
Rewrite the sentences using the passive voice.
They sold the fridge at a low price.
____________________________________________________
2. Somebody stole my camera from my hotel room.
____________________________________________________
3. Where did you take these photos
____________________________________________________
The fridge was sold at a low price.
My camera was stolen (by somebody) from my hotel room.
Where were these photos taken
Presentation
Practice
Post-grammar
4a
Rewrite the sentences using the passive voice.
4. Our parents advised us not to go out alone.
_____________________________________________________
5. Different writers translated the book into different languages.
____________________________________________________________________________________________________________
We were advised not to go out alone by our parents.
The book was translated into different languages by different
writers.
Presentation
Practice
Post-grammar
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
突然；猛地
Presentation
Practice
Post-grammar
4b
Complete the sentences with the correct forms of the verbs in the box.
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
Presentation
Practice
Post-grammar
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
Presentation
Practice
Post-grammar
4c
Decide whether active or passive forms should be used in these sentences. Write the correct forms in the blanks.
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
Presentation
Language points
Post-grammar
eg：This sweater is on sale at a low price. 这件毛衣正以低价出售。
low形容词，意为“低的”。
eg：She jumped over the low wall.她跳过了那堵矮墙。
1. at a low price 以低价
At present, the price of the houses in Urumqi _______ than before. I can afford ______ a large one. (乌鲁木齐)
A．are cheaper；to buy B．is cheaper；buy
C．are lower；buy D．is lower；to buy
【点拨】本题用分析句意法解题。句意：现在，乌鲁木齐市房子的价格比以前低， 我可以负担得起买一套大房子。the price of the houses作主语，应用low或high表示，且谓语动词用单数。afford to do sth.负担得起做某事。
D
Presentation
Language points
Post-grammar
low 低 主语是价格，不能是物品本身
high 高 cheap 廉价；便宜的 主语不能是价格，必须是物品本身
expensive 昂贵的；花钱多的 “高低贵贱”的用法
拓展【易错点】
eg：Today in Tokyo the lowest temperature is 16℃，and the highest is 28℃.
今天东京的最低气温是16℃，最高气温是28℃。
The price of this watch is very high. 这只表的价格很高。
The price of this book is not low for me.这本书的价格对我来说不低。
This watch is expensive.这只表很贵。
This cloth doll is very cheap.这个布娃娃很便宜。
Presentation
Language points
Post-grammar
translate... into ...意为“把……翻译成……”，既可用于主动语态中，也可用于被动语态中。
eg：Don’t translate everything into Chinese when you read English articles.
当你阅读英语文章时，不要把所有的东西都翻译成汉语。
Will the book be translated into English as soon as possible
这本书会尽快翻译成英文吗？
2. translate /tr ns'le t/ v．翻译
Do you know Mo Yan His books ________ into English a few years ago.
A．were translated B．translated
C．are translated D．translates
【点拨】本题用语法判定法解题。句意：你知道莫言吗？他的书几年前被翻译成英文。本句为被动语态，根据句中的时间状语a few years ago可知用一般过去时。
A
Presentation
Class test
Post-grammar
一、用所给动词的适当形式填空
1. The pizza __________ (make) by me. Would you like to have some
2. The Great Wall _________ (know) all over the world.
3. This story __________ (tell) by my grandmother last night.
4. Was a new science museum ______ (build) in your hometown last year
5. No student _______(see) in the playground.
was made
is known
was told
built
is seen
Presentation
Class test
Post-grammar
二、按要求完成句子
6. I was given a new toy by my aunt last week.( 改为主动语态)
My aunt ________ ________ a new toy last week.
7. Many trees were planted along the river last year.(改为否定句)
Many trees ________ ________ along the river last year.
8.Sky lanterns were used to ask for help in ancient times, _______ ______ （完成反意疑问句）
9. The beautiful piece of music was played by HuoZun. (对画线部分提问)
________ _______ the beautiful piece of music _______ by
10. The book was translated into eight languages last year. (改为一般疑问句)
_______ the book __________ into eight languages last year
gave me
weren't planted
weren't they
Who was played
Was translated
Presentation
Homework
1. Find out information about an invention you would like it and
write sentences below.
Invention:
When:
Who:
Purpose:
2. Preview SectionB1a-1e.
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