Unit 6 When was it invented? Revision 课件 (共18张PPT)

(共18张PPT)
Unit 6 When was it invented
九年级全一册
Revision
1. be used for doing
= be used to do sth
2. with pleasure
3. by accident
4. It's said/believed that
5. take place
6. without doubt
7.by mistake
8.all of a sudden
被用于做某事
发生
据说.....
毫无疑问
错误地；意外地
很荣幸....
偶然，意外地
突然
phrases
1. divided ... into
2. stop sb from doing sth
3. not only....but also...
5. the number of
6. look up to
7. encourage sb to do sth
8.achieve one's dream
把...分成....
鼓励某人做某事
....的数量
钦佩，仰慕
实现某人地梦想
阻止某人做某事
不仅...而且...
phrases
1. electric(adj.) →______________ (n. )电能
2. day(n. )→_____________ (adj. )日常的
3. accident(n. ) →___________ (adj. )意外的；偶然的
4.popular(adj.) →__________(n.)受欢迎，普及
5.sudden(adj) →____________(adv.)突然地
6.music（n.）→___________(adj.)有音乐天赋的
7.salt(n.) →_______（adj.）咸的
8.Canada(n.) →__________ （adj.）加拿大（人）的
9.near(adj.) →__________ （adv.）几乎
10.nation（n.）→___________ （adj.）民族的
11.invent（v）→_______（n.）发明者→__________ (n.)发明；创造
12.profession（n.职业）→__________ （adj.）专业的；职业的
accidental
popularity
salty
Canadian
national
suddenly
inventor
professional
electricity
daily
musical
nearly
invention
words
1.--When was the zipper invented
--It was invented in 1893.
2.--Who was it invented by
--It was invented by Whitcomb Judson.
3.--When was tea brought to Korea
--It was brought to Korea during the 6th and 7th
centuries.
4.--What is the hot ice-cream scoop used for
--It’s used for serving really cold ice-cream.
5.Active Voice : Alexander Graham Bell invented the
telephone in 1876.
Passive Voice: The telephone was invented (by Alexander
Graham Bell) in 1876.
拉链是什么时候被发明的？
它是在1893年被发明的。
它是由谁发明的？
它是由惠特科姆·贾德森发明的。
茶是什么时候被带到朝鲜的？
它是在6世纪和7世纪期间被带到了朝鲜。
热冰激凌勺是用来干什么的？
它被用来提供很凉的冰激凌。
亚历山大·格拉厄姆·贝尔在1876年发明了电话。
电话在1876年被(亚历山大·格拉厄姆·贝尔)发明。
Notice:
1.翻译；2.观标红, 总结语法结构.
words
Language points
A number of +名词复数/代词+V.原形/are/were
The number of +名词复数+V.三单/is/was
2.Not only…..but also…..
就近原则：
距离前面的主语谁最近，就用相应的形式。
Eg: Not only my family but also she ______(love) reading books.
loves
3. With pleasure
用于回答别人请你帮忙 （can you…….. )
用于回答别人对自己的感谢(Thank you for/ Thanks)
Language points
4.discover 和invent 的区别
discover: 译为发现，指本来就存在但一直没有被发现的东西。
Invent: 译为发明，指创造出自然界本来就不存在的东西
5. so 和such的区别
So 为副词
So +adj.+n.
So +adj.+a/an+n.
So+ adj.+n.复数/不可数
Such为形容词
Such+n.
Such+a/an+adj.+n.
Such+adj.+n.可数/不可数
that从句
that从句
Language points
6.doubt
当doubt做名词时 “疑惑”
固定搭配为：“毫无疑问”
without doubt
there is no doubt that……
当doubt做动词时 “怀疑”
用在肯定句中后接if/whether引导的宾从 I doubt if/whether …….
用在否定句中后常接宾从 I don’t doubt that………
当主语为动作的执行者时， 谓语的形式为主动语态； 当主语为动作的承受者时， 谓语要用被动语态。
eg: Judson invented zipper in 1893.
（主动语态, 句子的主语 Judson 是动作 invented的执行者）
Zipper was invented by Judson in 1893.
（被动语态, 句子的主语zipper是动作invented的承受者）
被动语态的结构：
be（was/were） + 动词的过去分词(课本184)
Grammar
1.意义
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...)
was/were + done
Grammar
一般过去时的被动语态
2.结构
Grammar
3.主动句变被动句的步骤
1.主变宾
2.动词变成被动语态 be+done，be用什么形式由原句的时态决定
3.by+主动句的主语
Eg:
They sold the fridge at a low price.
The fridge were sold at a low price by them.
代词变成宾格
代词变主格
Exercise
1.词性转换
1.In 1986, American made the rose the________(nation) flower.
2.According to a survey，the average number of ______(day) steps is 4196.
3.The drum is the oldest __________(music) instrument in the world.
4.I found that the _________(Canada) food was very delicious
5.The__________(popular) of Internet makes our life better.
6.The teachers were________(near) all men.There are only two women.
7.Sometimes you need the advice of ___________(profession)artists.
daily
national
musical
popularity
Canadian
professional
nearly
2.动词应用
Did you know that tea, the most popular drink in the world (after water), was _________(invent) by accident Many people believe that tea was first _________(drink) about 5,000 years ago. It is said a Chinese ruler _________(call) Shen Nong was the first to discover tea as a drink.
A few thousand years later, Lu Yu, “the saint of tea”,_________ (mention) Shen Nong in his book Cha Jing. The book describes how tea plants _________ (grow) and used to make tea.
It is _________(believe) that tea _________(bring)to Korea and Japan during the 6th and 7th centuries.The tea trade from China to Western countries _________(take) place in the 19th century. This helped to spread the popularity of tea and the tea plant to more places around the world.
invented
drunk
called
mentioned
were grown
was brought
believed
took
题目要求：
Imagine you are a business person. Write a description of your new invention. Try to sell the invention to the class.
writting
这是一篇事物介绍类的说明文，根据题目提示可考虑采用下面的模板。
特殊的笔
引出话题
介绍发明
简短的结尾
There are so many interesting inventions
in our life, and they make our life easier.
So today I want to show you a special
pen, and it will help a lot while you study.
材料：It is made of/ from....
用途: It is uesd for.../ to do
(一般写2-3个用途)
I think this special pen will become
more an more popular
in the future. So why not buy one
引出话题
There are so many interesting inventios in our life, and they make our life easier.So today I want to show you a special pen, it will help a lot when you study.
介绍发明
It's made of steel and a kind of special material.(材料)
It has three buttons with three colors （按钮）, you can change the color when you need to write different words.(用途1）It can also store（存贮） many words , so it can be used for writing more quickly. (用途2) It is very useful if you have a lot to write down many words. And it can be used to light（照明） in the evening.（用途3）
简短结尾
I think this special pen will become more and more popular in the future. So why not buy one