(共24张PPT)
Unit 6 When was it invented
人教新目标版 九年级上
SectionA 2d Grammar Focus-4c
7. low[l ] adj.低的;矮的
8. sudden [ s dn] adj.突然(的); suddenly adv.突然地
9. bell [bel] n.钟(声);铃(声)
10. biscuit [ b sk t] n.饼干
11. cookie [ k ki] n.曲奇饼
12. musical [ mju z kl]adj.音乐的;有音乐天赋的;musician n.音乐家
13. instrument [ nstr m nt]n.器械;仪器;工具
重点单词
1. fridge[fr d ] n.冰箱
2. earthquake[ θkwe k] n.地震
3. somebody [ s mb di] pron.某人; someone n. 重要人物
4. translate [tr nz le t] V.翻译;translation n.翻译
5. lock [l k] v.锁上，锁住; n.锁
6. ring[r ] v. (使)发出钟声或铃声;打电话
Invention Inventor Time Usage (用途)
telephone Bell 1876 making phone calls
computer an American 1976 getting information
light bulb Edison 1879 giving light
camera a Frenchman 1839 taking pictures
bike a German 1817 riding
Make conversations according to the table.
A: When was... invented
B: It was invented by... in...
A: What is it used for
B: It is used for...
What do these things have in common
They all have zippers.
zipper n. 拉链；拉锁
New drills
The zipper is a small and normal invention in our daily lives.
However, we can see zippers almost everywhere!
Paul is preparing for his school project.
Roy comes to help him.
Read the conversations between them and find out something about the zipper.
project n. 课题；项目
What is the subject for their school project
2. What kind of invention does Roy think of
3. Why does Roy think it is a great invention
4. Who and when was the zipper invented
5. When did the zipper become popular
Small inventions that changed the world.
The zipper.
Because it is often used in our daily lives.
Whitcomb Judson invented it in 1893.
Around 1917.
Read 2d carefully and answer.
2d
Listen again and repeat.
Paul: Hey Roy, the subject for my school project is “Small inventions that changed the world.” Can you help me think of an invention
Roy: With pleasure! Let me think… hmm… I know! The zipper!
Paul: The zipper Is it really such a great invention
Roy: Think about how often it’s used in our daily lives. You can see zippers on dresses, trousers, shoes, bags… almost everywhere!
with pleasure!乐意效劳！
如此伟大的一项发明
在我们的日常生活
Paul: Well, you do seem to have a point…
Roy: Of course! I thought about it because I saw a website last week. The pioneers of different inventions were listed there. For example, it mentioned that the zipper was invented by Whitcomb Judson in 1893. But at that time, it wasn’t used widely.
Paul: Really So when did it become popular
Roy: Around 1917.
有道理
不同发明的先驱者
Do you know how small _________ changed the world That’s the subject for my ______ ______. I want to introduce the _______. It is ______ a great invention ______ it is often ______ in our ______ _______. Zippers can ______ ______ _____ dresses, ______ , shoes, bags, almost everywhere. I have seen on a ________ that the _________ of different inventions were ______. There it ________ that the zipper was invented _____ Whitcomb Judson in 1893. But it wasn’t used _________ at that time. In around 1917, it became ___________.
inventions
school project
zipper
such
that
used
daily lives
be seen on
trousers
website
pioneers
listed
mentioned
by
widely
popular
Fill in the blanks according to the conversation.
Consolidation
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.
Grammar Focus
Practice
1. 拉链什么时候发明的？
When _____ the zipper _________
2. 1893年发明的。It ___ _________ in 1893.
3. 它是谁发明的？
Who ______it ______ ___
4. Whitcomb Judson发明的。
It ____ _____ ___Whitcomb Judson.
5. 茶什么时候带到韩国的？
When ___ tea ______ ____Korea？
was invented
was invented
was invented by
was invented by
was brought to
6. 第六世纪和第七世纪间带到韩国。
It ____ ________ _____ Korea during the 6th and 7th centuries.
7.冰激凌加热勺是做什么用的？
What _____ the hot ice-cream scoop ______ ______
8.它是用来盛真正冷的冰激凌的。
It____ _____ _____ ________ really cold ice-cream.
9.Alexander Graham Bell 1876年发明电话。
was brought to
is used for
is used for serving
Alexander Graham Bell invented the telephone in 1876.
The telephone was invented (by Alexander Graham Bell) in 1876.
一般过去时的被动语态的构成
句式 结构 例句
肯定句 主语+ was/ were +过去分词+ (by…). The club was set up in 2010.
否定句 主语+ wasn’t/ weren’t +过去分词+ (by…). 1 wasn’t told to attend the meeting yesterday.
一般疑问句及回答 Was/Were+主语+过去分词 肯定回答: Yes, 主语+ was/ were. 否定回答: No, 主语+wasn’t/ weren’t. — Were the trees planted last year
— Yes, they were./
No, they weren’t.
特殊疑问句 特殊疑问词+ was/were+主语+过去分词 When was the bridge completed
Alexander Graham Bell invented the telephone in 1876.
The telephone was invented (by Alexander Graham Bell) in 1876.
主（执行者）
谓
宾(承受者)
添加
总结:
主动语态 被动语态
宾语 →
谓语 →
主语 →
其他 → 抄下来
主语
be+ P.P(过去分词)
by +宾语
主动变被动的方法:
在改写中应注意：
1.把原来的宾语提到前面作被动语态的主语;
2.把动词变成“be + 过去分词”;
3.主动语态中的主语变为介词by的宾语, 放在动词后或句末。
Rewrite the sentences using the passive voice.
4a
1.They sold the fridge at a low price.
2.Somebody stole my camera from my hotel room.
3.Where did you take these photos
4.Our parents advised us not to go out alone.
5.Different writers translated the book into different languages.
Where were these photos taken
The fridge was sold at a low price.
My camera was stolen from my hotel room.
We were advised not to go out alone by our parents.
The book was translated into different languages
by different writers.
at a low price 以低价
eg：This sweater is on sale at a low price.
low形容词，意为“低的”。
eg：She jumped over the low wall.
1
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】
知 识 点
translate /tr ns'le t/ v．翻译
translate... into ...意为“把……翻译……”，
eg：Don’t translate everything into Chinese
when you read English articles.
2
练习：Do you know Mo Yan His books ________ into English a few years ago. (黔西南)
A．were translated B．translated
C．are translated D．translates
A
translation n. 翻译translator n. 翻译家
拓展
易错点1:
John turned on the radio.
The radio was turned ____.
动词短语变被动语态时,千万不要遗漏单词。
We must speak to old people politely.
Old people must be spoken ____ politely.
on
to
. He makes her horse work all day.
Her horse is made all day.
. My father saw me go out for a picnic.
I was seen out for a picnic.
to work
to go
这些动词真奇怪，主动句中to 离开，被动句中to回 来。（hear, see, watch, let, have, make, …)
易错点2：
（5）其他：
There be 结构没有被动语态。
Happen, rise, appear, come out, take place等不及物动词没有被动语态。
主动句中宾语为反身代词的没有被动语态。
Look, sound, smell等系动词或sell，write，wash等表示主语内在“品质”或“性能”的不及物动词可以用主动形式表被动含义。
例：这些书卖得很好。These books sell well.
不使用被动语态
易错点3
Complete the sentences with the correct forms of the verbs in the box.
4b
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.
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
all of a sudden: 突然；猛地
(1) When she got home, she found that she forgot_______the door this morning.
(2) Alice is good at music and she has a______talent.
(3) My daughter likes eating______very much. She thinks they're very delicious.
(4) He made a______decision to go to Beijing. We all didn't know that.
(5) Last week our hospital bought some medical______.
用方框中所给单词的适当形式填空.
suddenly instrument music lock cookie
答案：(1) to lock (2)musical(3)cookies(4) sudden(5) instruments
Exercises
Homework
1. Review the grammar we've learnt today.
2. Write five sentences with passive voice
(past tense).
3. Preview 1a-1e of Section B on page 45.
