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人教九全英语同步精品课件
人教版九年级全一册
Unit 6 When was it invented
Section B 3a-Self check
写作精品课
人教新目标版 九年级（全）
Section B
Unit 6 When was it invented
写作课优质课
3a-Self check
1.能用“be invented in/by..., be used for…,be made of/from/by...”等句型描述发明物的历史。
2.能够在写作中运用素材收集、话题解读、问题回答、遣词造句、连句成篇、篇章结构布局、写作思维导图等写作技能和写作策略介绍一项发明。
3.鼓励学生保持对科学发明探索的兴趣。
学习目标
Some fruits were bought (by him) yesterday.
He bought some fruits yesterday.
He rode the motorbike to his factory last night.
The motorbike was ridden to his factory (by him) last night.
We made the snowman this morning.
The snowman was made by us this morning.
Ask and answer in pairs.
A: What invention is it
B: …
A: Who was it invented by
B: ...
A: When and where was it invented …
·Problem: __________________________
·New invention: _____________________
·What it is used for: ___________________
a special pen
quickly taking notes in class
taking notes in class
Can you think about more details about this pen
What is it made of
What special thing does it have
What does it look like
How can it help you
Think of something that you do not like to do. Then think of an invention that could help you. Make notes.
3a
3
4
1
2
5
who
when
how
...was/were invented by...
...invented ...
in+ 年份
on+月，日，年
at the same time
although
because....
in order to.....
There be...
color,shape,size
what
why
invention
How to introduce an invention
3b
This special pen was invented by Liu Jie. It has three colors and is used for …
Imagine you are a business person. Write a description of
your new invention. Try to sell the invention to the class.
假如你是一个商人，你有一项新发明。请以A special…为题介绍一下你的新发明，并将它推销给你的同学们。词数80-100。开头已给出，不计入总词数。
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。
the special pen
引出话题
介绍发明
畅想未来
... important in our daily life.
时间:The pen was invented
in ...
外形：... was long and round.
用途:write some messages ... open ...
I think pens are going to ...
1. 人称: 主要用第三人称
2. 时态: 一般过去时态为主，其它时态为辅；
3. 语态：主要用被动语态
4. 常用句型：
① ... was invented by / in …
② ... is made of / from …
③ ... is used for...
④ I think … is a very useful invention.
5. 写作思路
首先，使用3b句型介绍发明的产品发明人名称；
其次：根据3a提示，使用句型介绍类型、用途及其制作材料等；
最后：介绍自己的使用感受效果等, 建议同学买一个。
注意：要恰当运用被动语态，检查时态、句子结构等是否正确。
写作指导
1. I think … is a very useful invention.
我认为……是一项很有用的发明。
2. … was invented by …
……是由…… (某人)发明的
3. … was invented in …
……是在…… (某时间)发明的
4. It is used for … 它被用来……
5. … is made of ………是由……(材料)制成的
常用句型：
Hi, boys and girls. I have a special invention. This special pen was invented by Liu Jie. It has three colors and is used for taking notes quickly in class. It was invented in 2012. It is made of plastic and steel. It can remember what the teacher said. It can also help write down the main points. I think it’s a useful invention.
Do you like it If you like it, please call me at 13562327969.
范文展示：
本单元以"Inventions"为话题，主要谈论了历史上及生活中的一些重要发明，要求学会介绍某项发明的用途、特点等。该话题常见的命题形式有∶介绍历史上的一项重要发明;介绍你身边的人或你自己的一项新发明。
从古自今，无数发明走进了我们的生活，例如点灯、电视、电脑、电话、手机、自行车和雨伞等，这些发明给我们的生活带来了诸多便利，提高了我们的生活质量，真是“小发明改变世界”。请以“My favorite invention"为题根据要求完成A、B两项写作任务。
B.请以“My favorite invention"为题，写一篇短文。
要求：1.内容包含A部分的信息，适当发挥，内容完整。
2.语句通顺连贯，无单词拼写及语法错误。
3.书写规范整洁。 4.不少于80词。
A.用完整的句子回答下列问题：
1.What's your favorite invention
2.When was it invented
3.Who was it invented by
4. What is it used for
5.What do you think of the invention
My favorite invention is light bulb.
It was invented in 1854.
It was invented by Thomas Edison.
It is used for seeing in the dark.
I think it's a great /useful/invention.
Beginning
Sb.al always have difficulty in doing sth., so he invented this.
Body
It is made of…
It looks like…
It has…
Not only can it help you…, but also it can help you…
End
Nowadays, it has become so popular in the world and a lot of people like to used it.
体裁：说明文
时态：介绍发明要用一般现在时
人称：第三人称
在介绍该发明的工作原理时，可以使用表示顺序的词first和then来连接，这是使用逻辑纽带的方式进行衔接的一种方法。
daily lives日常生活 be made of/from 由……制成
by accident 偶然；意外地
be used to/for 被用来……
at that time 在那时
without doubt 毫无疑问；的确
not only … but also … 不但……而且……
thanks to 由于；多亏
开头句：
Among all the modern inventions, I think … is the most important one.
I think … is such a great invention.
In my opinion, … is one of the greatest inventions.
中间句：
It was invented … ago.
It was made of/from …
It was used to/for …
This invention can not only … but also …
This invention made it … for sb. to do sth.
结尾句：
Thanks to …, our lives have been greatly improved.
Without doubt I like … because …
… play(s) an important part in our daily lives.
常用的关联词
1. 开头常用词语：
as far as we know 据我们所知
as everybody knows 众所周知
at present 目前
first of all 首先
tell the truth 老实说
2. 结尾常用词语：
after all 毕竟
in the end 最后
in a word 总而言之
we hope that ... 我们希望 In short 简而言之
clearly 显然
原因 thanks to, because of, because
结果 as a result of, so/therefore, so ... that
转折 however, yet, but
补充说明 not only ... but also ..., furthermore/ What’s more/ besides/ In addition, It is said that ...
My favorite invention is light bulb.
It was invented in 1854.It was invented by Thomas Edison. it is used for seeing in the dark.
I think it's a great /useful/invention.
There are many inventions around us,such as computers,cameras and mobile phones and so on.
I believe
that it is a small invention that changed the
world.
It's made of glass and looks like a ball.It has brought bright to the world since it was invented. With light bulb, people can do more things than before.
My favorite invention
What's more,Thomas Edison was a great inventor.I also want to be an inventor like him.
And
It is often difficult to decide on the inventor of certain inventions. This is because sometimes a few people may ______ things which are _______ the same. It’s hard to tell who came up with the idea first. Some inventions can also lead to other inventions _____________. So some people _____ whether the inventor came up with the idea himself or herself. They think that the inventor used someone else’s idea to create his or her invention. That is why books or _______ usually _______ more than one inventor when giving information about inventions.
invent, doubt, mention, nearly, website, all of sudden
Complete the passage with the correct forms of the words in the box.
Self Check
invent
nearly
all of a sudden
doubt
websites
mention
My watch was stolen (by someone).
Five eggs were used to make this big cake.
When was the personal computer invented
We were asked not to run in the hallway.
The video was taken back to the store (by someone).
Self Check
3. Find out information about an invention you would like to know more about and write sentences below.
Invention:___________
When: ______________
Who: _______________
Purpose:_____________
switch plug
(断路插头)
2012，
富超穎 (中国)
scooter carriage
(滑板婴儿车)
2007年
Valentin Vodev (奥地利)
Self Check
如何介绍某项发明
Para 1
引出话题
... important in our daily life.
Para 2
介绍发明
时间：It was invented in ...
材料：It’s made of....
外形：... is/was small/huge/light ...
用途：... is/was used for/to ...
Para 3
谈谈感受
I think/hope it ...
Summary
1. The first paper __________ (make) in China in 105 AD.
2. For over 500 years the art of making paper __________ (limit) to China.
3. In 610, papermaking ______________ (introduce) into Japan.
4. Kites ___________ (know) in China about 3,000 years ago.
5. Wheelbarrows ____________ (invent) in the Han Dynasty.
6. Gunpowder _______________ (discover) by the Chinese hundreds of years ago.
7. Soccer _____________ (develop) in England in the 12th century.
was made
was limited
was introduced
were known
were invented
was discovered
was developed
I、Fill in the blanks with the correct form of the given verbs.
Ⅱ.用所给词的适当形式填空。
1. Now computers are widely used in our ______ (day) lives.
2. He mentioned _________ (hear) from her often.
3.The soup is very _______ (salt) because my mother put lots of _____ (salt) on it.
4. Since then, the ___________ ( popular ) of basketball has risen quickly.
5. I have worked here for _______(near) two years.
daily
hearing
salty
salt
popularity
nearly
1. Review the words in this unit.
2. Write a passage:
假如你发明的“飞行单车”在学校科技节中获奖，被推荐参加一个国际青少年科技展览。请用英语介绍你的发明， 内容包括下图1-4项。
注意：
（1）参考词汇：轮子：wheel 太阳能：solar power
（2）词数80左右（文章的开头已给出，不计入词数）。
（3）不得透露学校、姓名等任何个人信息。
My invention is a flying bike. ____________________________________________
____________________________________________________________________________________________________________________________________________________________________________________________________________
Homework
谢谢
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