Unit 6 When was it invented ?
【单元学习目标】
1. 交际用语：
围绕“发明”这一话题，谈论发明的历史
---When was the zipper invented? ---It was invented in 1893.
---Who was it invented by ? ---It’s was invented by Whitcoin Judson .
---What is the not ice cream scoop used for? --- It used for serving really cold ice-cream. 2. 语法：
一般过去时被动语态的构成及用法。
【单元重点难点】
重点：谈论发明物的历史。
难点：一般过去时被动语态的构成及用法。
第一课时Section A (1a-1c)
主备人：赵红审核人：吴寅成
【学习目标】
1.句型：When was the car invented?
2弄清一般过去时的主动语态与被动语态的差异，并通过练习和运用加以巩固。
【重点难点】
重点：When was the car invented?
难点：一般过去时的被动语态。
【导学过程】
一、课前预习
1.填空并回答问题
When they(invent)?
The telephone. The computer________________________________________________________________ .. The TV .
2.翻译下列年代：
1). ninteen seventy-one_____________ 2).eighteen eighty-five____
3).eighteen seventy-six 4). 2010____________________
5). 1927_________________ 6). 1976_____________________ _
二、自主学习、合作探究
（一）自主学习
1. 预习检查。
2.阅读1a部分的内容。
并按要求完成课本上相应的任务
3.播放听力1b，完成听力任务并检查读出序号-读出年份-读出完整的句子。
4.完成教材1c的任务，要求学生模仿1a内容，进行对话练习。
并邀请2-3对同学进行演示。
（二）合作探究
知识点invent, discover, create的区别
invent (v.)发明；创造
invent 指发明创造出自然界本来不存在的东西，如工具、方法、汽车、电器、合成材料等。
Eg: Bell invented the telephone. 贝尔发明了电话。
discover“发现”，指发现原来就有而一直没被发现，如发现电、煤、石油等矿科学真理等。
Columbus discovered America in 1492.1492年哥伦布发现了新大陆。
find的意思是“寻找”，强调找的结果，并不指发现。
I've tried to find another copy but couldn't find one. 我试图再找一本，但没能弄到
create指有目的地把原材料制成新产品，也指创造出原来不存在的或与众不同的事物
知识链接：
根据语境提示，用invent, discover，find或create的形式填空，完成句子。
1.When _____ the stream engine（蒸汽机）___?
2. I can’t ____ my bike, I’m looking for it.
3. Scientists are now trying to ___ if this is possible.
4. Do you know who______ the plane？
5. He ____quite a number of wonderful characters in his play.
三、达标检测
（）1.The kind of cup is used__________ drinking.
A .to B. as C .by D. for
（）2.My mother and my sister kept on talking, but my father________ silent all the time.
A. got
B. kept
C. turned
D. looked
（）3.I think the short story _________by Lu Xun.
A. is writing
B. is written
C. written
D. was written
（）4.—Who ________the electric light lamp______? —Edison.
A .was; invented B. is; invented C. was; invented by D. did; invented by
【教学反思】
第二课时Section A (2a-2d)
主备人：赵红审核人：吴寅成
【学习目标】
1. 掌握生词及短语heel scoop electricity style project pleasure zipper
3. 掌握句子Who was it invented by? What are they used for?
4. 掌握一般过去时被动语态的构成和运用
【重点难点】
重点：能听懂含有一般过去时被动语态的简短对话。
难点：能运用一般过去时被动语态谈论历史上的发明。
【导学过程】
一、课前预习
根据句意及首字母提示补全单词。
1.This kind of (电池)is very good .
2 . _______ (三分之二)of the sweaters are made of wool .
3 .Edison i__________ many things in this life.
4. It’s used for(用勺舀) really cold ice cream .
5 .These jeans don’t have a (拉链) .
6.Which of these (发明) is the most useful?
7.Nowdays ,houses are mostly lit by e .
二、自主学习、合作探究
（一）自主学习
1.播放录音，完成2a，2b的听力任务，然后个别检查，统一核对答案。
2.要求学生听第二遍录音，并逐句进行跟读。
3.学生模仿听力内容，利用2a，2b的信息分角色练习对话。
4.朗读2d，了解对话大意，找出对话中一般过去时被动语态的句子。
（二）合作探究
1.小组合作用下列句型进行对话练习
When was sth invented ?
It was invented in 1893
Who was it invented by ?
2.知识链接;
be used for 用来做……此短语中的for是介词，表示用途，后接名词或动词-ing形式。
A pen is used for writing. 钢笔用来写字。
be used by 意为“被……使用”，介词by后面接动作的执行者（宾语）。
Tractors are used by the farmers. 农民使用拖拉机。
三、达标检测
1.英汉互译
1）带灯鞋2）shoes with special heels
3) 冰激凌4）the style of the shoes
5) 用来做5）my pleasure
7) 每日生活8）当然
9) the pioneers of different inventions
2.用所给词的适当形式填空
1）shoes with lights are used for (see) in the dark .
2) Tea was first (drink) by Shen Nong nearly 5,000 years ago .
3) A nice smell was (produce ) when the tea leaves dropped into the hot water
4) The zipper wasn’t used (wide) until 1917.
5) The telephone was (invent) by a great (invent),it is a helpful (invent).
3.句型转换
1.The zipper was invented in 1893.(对划线部分提问)
The zipper invented?
2. Stamps are used for posting letters. (对划线部分提问)
Stamps ?
3.The machine which is used to catch mice was invented by a famer .
the machine which is used to catch mice invented by ?
【教学反思】。