(共25张PPT)
人教版九年级(初中)英语全册
Unit 6
When was it invented
第1课时 sectionA1a-2d
1.熟练使用以下新词汇、短语和句型：
heel, scoop, electricity, style, project, pleasure, zipper, daily, website, pioneer, list, mention, , be used for, with pleasure, think about, have a point
--I think the TV was invented before the car.
--Well, I think the TV was invented after the car.
--When was the telephone invented
--I think it was invented in 1876.
--What are they used for
--They’re used for seeing in the dark.
2.能够用被动语态来谈论一些东西的发明历史。
3.学生能了解一些发明的历史，扩充学生的知识，培养学生的创造力。
教学目标
Free talk
Who is this
What do you know about him
What did he invent
Thomas Alva Edison
carbon filament bulb
gramophone
课堂导入
Do you know any great inventions in ancient China
Tell us what you know about them.
printing
papermaking
seismograph
课堂导入
Who invented it
When was it invented
Bi Sheng.
between 1041 and 1045.
Cai Lun.
105 A.D.
Zhang Heng.
132 A.D.
课堂导入
Look at the things below. In what order do you think they were invented Discuss
them with your group. Then number them[1-4] (1=first, 4= last)
1a
A: I think the TV was invented before the car.
B: Well, I think the TV was invented after the car.
1
2
3
4
课堂活动
Listen and match the inventions with the dates.
1b
_____ 1876
_____ 1885
_____ 1927
_____ 1971
a
b
c
d
d
a
c
b
课堂活动
Student B, cover the dates. Student A, ask Student B when the things in the picture in 1b were invented. Then change roles and practice again.
1c
When was the telephone invented
I think it was invented in 1876.
Who was it invented by
It was invented by Bell.
课堂活动
Listen and number the inventions [1-3] in the order you hear them.
2a
3
1
2
课堂活动
Listen again and complete the chart.
2b
Invention What is it / are they used for
shoes with special heels ________ the style of the shoes
shoes with lights seeing ___________
hot ice-cream scoop ________ really cold ice-cream
changing
in the dark
serving
课堂活动
1. Do the Ture or False questions according to the conversation.
(1) Alex always hit his toe on something on the way to the bathroom
at night. _____
(2) The hot ice-cream scoop runs on electricity and becomes hot. _____
(3) According to the last invention, people can not move the heels up
and down. _____
T
T
F
课堂活动
Make conversations using the information in 2b.
2c
What are they used for
They’re used for …
课堂活动
Role-play the conversation
2d
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: My 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!
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.
课堂活动
1. Ask students to read the conversation aloud, then act it out with their partners .
Paul
Roy
课堂活动
1. invent v. 发明，名词形式为：invention意为“发明”。inventor意为“发明家”。
e.g. Shakespeare created many famous characters.莎士比亚创造了许多有名的人物。
who invented the telephone 谁发明了电话？
He invented a new teaching method.他发明了一种的教学方法。
【辨析】：discover, invent和create
discover意为“发现”, 指发现某种本来存在,但以前未被发现或未为人所知的事物或现象。
e.g. The lost bike was discovered at the bus stop. 丢了的自行车发现在公共汽车站那儿。
Later I discovered that he was so kind.后来我发现他如此善良。
invent指创造出原来自然界不存在的东西，如工具、方法、手段、灯泡、汽车、电视、合成材料等
Do you know who invented the computer 你知道谁发明的电脑吗？
create指产生出新的东西，其对象往往是精神上的，如艺术、文学作品中的人物及新的科学领域等。
知识拓展
2. What are they used for 它们是用来做什么的？
be used for sth. /doing sth.意为“被用来做某事”，表示用途或目的，后接名词或动名词，相当于be used to do sth.
Clothes are used for keeping (= to keep) warm.
Wood can be used for building (= to build) houses.
used to do sth.意为“过去常常做某事”。
I used to smoke when I was young.
use sth. to do sth.意为“使用某物来做某事”，其被动结构为“sth. be used to do sth.”。
These knives are used to cut pies.
be used as 意为“被用作……，被作为……使用”。
English is used as a foreign language in China.
be used by 意为“被……使用”。
Rubbers are often used by students to correct mistakes.
知识拓展
3. — Can you help me think of an invention — My pleasure!
pleasure n. 愉快；高兴令人高兴的事;vt. 使高兴；使满意 ； vi.高兴。主要短语有：
My pleasure也可说成It’s a / my pleasure.或 A pleasure。
(1).用来回答感谢，意为：这是我高兴做的事； 别客气； 不用谢。如：
A：Thanks a lot. Bye. 谢谢了，再见。
B：It’s a pleasure. Bye. 别客气，再见。
(2). 表示做某事是件乐事（后接不定式或从句）。如：
It’s a pleasure to work with you. 与你共事真是件乐事。
It’s a great pleasure that you are here. 你在这儿是件非常令人愉快的事。
知识拓展
With pleasure (1)用来愉快地答应对方的请求或邀请，意为：好的；没问题；十分愿意。
如：A：May I borrow your car？ 我可以借你的车吗？
B：Yes， with pleasure. 当然可以。
A：Could you put me up tonight？ 请你为我安排今晚的住宿好吗？
B：With pleasure. 好的，没问题。
(2). 表示：高兴地；由于高兴。如：
She went red with pleasure. 她高兴得脸都红了。
They did the work with pleasure. 他们高兴地做了这项工作。
4. Well, you do seem to have a point …
(1) you do seem to have a point ...是个强调句，对谓语动词的强调用“助动词do +谓语动词原形”的结构。
Do Stay for supper! 一定要留下吃晚饭！
He did come here yesterday. 他昨天的确来这儿了。
Do come to my birthday party. 一定要来我的生日聚会。
知识拓展
5. ...it mentioned that the zipper was...
(1) mention表示“提到；提及”。
Don’t mention this problem this evening. 今晚别提这个问题。
He never mentioned his tall friend to me.
(2)若后接动词，要用动名词，不能用不定式。
Whenever I mention playing football, he says he’ s too busy.我一提起踢足球，他就说太忙。
(3) not to mention意为“更不用说；还不算”。
He can speak French, German and Japanese, not to mention English.
他会说法语、德语和日语，更不用说英语。
(4)口语中说 Don’ t mention it. 主要用来回答感谢，有时也用来回答道歉。
A：Thank you very much. 多谢你了。
B：Don’ t mention it. 不客气。
A：I’ m sorry to have troubled you. 对不起打扰你了。
B：Don’ t mention it. 没关系。
知识拓展
一、单项选择。
1. Paper ____first _____ about two thousand years ago in China by Cai Lun.
is; inventing B. is; invented
C. has; invented D. was; invented
2. English is widely used _______ many people around the world _______ a second language.
A. by; for B. by; as
C. as; for D. for; as
3. —Thank you for taking me around your school, Daming.
—________
A. Don’t mention it. B. Never mind.
C. Of course not. D. No problem.
D
B
A
课堂练习
二、句型转换。
1. The personal computer was invented in 1976. (对划线部分提问)
________ _______the personal computer ___________
2. The shoes with lights were invented by Julie Thompson. (对划线部分提问)
_________ _________the shoes with lights __________ ____
A Chinese named Cai Lun invented paper. (改被动语态)
Paper _______ _______ _______ a Chinese named Cai Lun.
4. Knives are used for cutting things. (对划线部分提问)
_______ _______ knives _______ _______
When
was
invented
Who
were
invented
by
was invented by
What
are
used
for
课堂练习
三、将下面的汉语翻译成英语句子。
1. 薯片是一个名叫乔治·克拉姆的厨师发明的。
Potato chips were invented by a cook called George Crum.
2. 而且他在它们上面放了很多盐。
And he put lots of salt on them.
3. 高铁被看作中国的新四大发明之一。
High﹣speed trains are seen as one of the new Four Great Inventions of China.
课堂练习
What have we learned in this class
1. New words and phrases ：
heel, scoop, electricity, style, project, pleasure, zipper, daily, website, pioneer, list, mention, be used for, with pleasure, think about, have a point
2. key sentences ：
--I think the TV was invented before the car.
--Well, I think the TV was invented after the car.
--When was the telephone invented
--I think it was invented in 1876.
--What are they used for
--They’re used for seeing in the dark.
3. Important language points：
(1) invent用法 (2)be used for用法 (3)pleasure 相关短语和用法(4)mention用法
(5)谓语动词的强调。
课堂总结
1.Search for more information about about some invention.
2.Review key knowledge points of this lesson.
3. Preview the content of next lesson.
家庭作业
Thank you！
