Unit 6 When was it invented Section B3 (3a-Self check) 优学案（含答案）

Unit 6 When was it invented
Section B3 (3a-Self check)
【学习目标】
1．复习一般过去时的被动语态的用法。
2．能够用英语讲述自己所熟悉的某一发明的简单过程。
3. 能够用英语介绍某一发明的简要过程。
【重点和难点】
学习重点:
掌握本单元所学的词汇、句型及语法知识，并能进行综合练习运用。
学习难点:
用英语介绍某一发明。
【课前预习】
一. 翻译短语。
1. decide on _______________
2. come up with _______________
3. lead to ______________
4. all of a sudden ________________
5. use someone else’s idea ____________
6. be used for _____________
二. 翻译下面的句子。
1. 这个特殊的钢笔是由刘杰发明的。
_______________________________________________________
2. 很难断定谁先想到这个主意的。
_______________________________________________________
3. 他们认为发明家是借用其他人的想法来创造自己的发明。
______________________________________________________
三、用所给单词的适当形式填空。
1. Ten eggs __________ (use) to make the big cake by my mother.
2. The boys __________ (ask) not to shout in the hallway.
3. When did they invent the __________ (person) computer?
4. Thomas Edison was a great ___________ (invent) in history.
5. Some inventions can also lead to other inventions all of a _________ (suddenly).
【合作探究】
探究一、完成课本3a-ab部分的任务。
根据3a所给表格列举出的内容提示，想出些你不喜欢做的事，
然后想出一些发明来帮助你，和同伴进行交流，写出提要。
Think of something that you do not like doing. Then think of an invention that could help you. Make notes.
假设你现在是一名商人，根据3a 写的提要以及3b方框中所给的句型、短语
写出一篇描述你的新发明的文章介绍这种新产品并设法卖给你的同学们。
探究二、复习重点句型
1. I think the TV was invented before the car.
我认为电视是在轿车之前发明的。
2. ---When was the telephone invented? 电话是什么时候发明的？
---I think it was invented in 1876. 我认为电话是在1876年被发明的。
3. ---What are they used for? 他们可用来做什么？
---They are used for changing the style of the shoes.他们可用来改变鞋子的样式。
4. ---When was the zipper invented? 拉链是什么时候发明的？
----It was invented in 1893 它是在1893年被发明的。
5. ---Who was it invented by? 它是由谁发明的？
---It was invented by Whitcomb Judson. 它是被惠特科姆.贾德森发明的。
6. ---When was tea brought to Korea?
茶是什么时候被带到韩国的？
---It was brought to Korea during the 6th and 7th centuries.
它是在六至七世纪被带到韩国的。
7. ---What is the hot ice-cream scoop used for?
这个热的冰其淋勺子是用来做什么的？
---It’s used for serving really cold ice-cream
它用来提供真正冷的冰淇淋。
探究三、完成课本Self check 1-2部分的任务。
1. 用方框中所给单词的正确形式完成1部分的短文并朗读短文同时核对答案。
invent nearly all of a sudden doubt website mention
2. 用被动语态改写句子。
1) My watch was stolen by someone.
2) Five eggs was used to make this big cake.
3) When was the personal computer invented?
4) We were told not to run in the hallway.
5) The video was taken back to the store.
探究四、写作
本单元的话题主要是谈论重要的发明，涉及的内容有发明物的发明时间、发明人及用途等；写作涉及的题目多为介绍某项发明或某件物品并发表评论；要求学生在写作中能正确使用be invented by/in…，be used for…等短语。
单元写作素材:
(一)单元话题短语积累
1．众所周知 ________
2．谈论 ________
3．对……有益 ________
4．由……制成 ________
5．被用于 __________
6．把某物介绍给某人 _________
(二) 单元话题句子积累
7．机器人已经给我们的生活带来了很多便捷。
Robots _______ _______ a lot of ________ ________ our life.
8．毫无疑问，互联网在我们的日常生活中起着重要的作用。
________ _______ _______ _______ that the Internet _______ _______ ________ ________ in our everyday life.
9．直到有一天我们自己成为父母，我们才知道父母的爱。
We ________ know the love of our parents ________ we become parents ourselves one day.
话题作文写作:
假如你就读于一所国际学校，酷爱发明，在你校的科技周活动中你想向同学们“推销”你的一项新发明。请根据提示准备一篇英语发言稿。
提示：
1．What's it and when was it invented?
2．What's it used for?
3．What's it like?
4．How does it work?
5．How much is it?
【思路点拨】
1.?定基调???体裁：说明文???时态：介绍发明要用一般现在时????人称：第三人称
2.?谋布局、写句子
3.?巧衔接
在介绍该发明的操作方法时，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。
4.?添佳句
It's cheap and good. (物美价廉。)
5.?成篇章
May I have your attention, please????????????????????????????????????????????????????????????????????????????__
????????????????????????????????????????????????????????????????????????????????????????????????????????????????????_____???????????????????????????????????????? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?__________________ ?
【课时小结】
重点词组
1. decide on 决定，判定
2. come up with 想到，想起
3. lead to 导致
4. all of a sudden 突然；猛地
5. use someone else’s idea 借用其他人的想法
重点句式
1. This special pen was invented by Liu Jie.
这个特殊的钢笔是由刘杰发明的。
2. It’s hard to tell who came up with the idea first.
很难断定谁先想到这个主意。
3. They think that the inventor used someone else’s idea to create his or her inventions.他们认为发明家是借用其他人的想法来创造自己的发明。
【达标检测】
一、从方框中选择合适的单词，并用其适当形式完成句子。
day, customer, popular, near, salt
1. These cookies your mom cooked taste __________.
2. The ___________ of private cars is changing the people’s life style.
3. What do you think is the most important in our __________ life.
4. Why do so many _______ come to this supermarket to buy things?
5. Mr Green is ________ eighty, so it's often difficult for him to remember things．
二、用所给动词的适当形式填空
1. During the afternoon, there was a _______ (suddenly) heavy fall of snow.
2. I think the telephone _____________ (invent) before the car.
3. The __________ (Canada) song Alouette(百灵鸟) is a fun song about a bird.
4. They ____________ (invite) to take part in the May Day celebrations in Beijing.
5. The ___________ (popular) of private cars is changing the people’s life style.
【自我评价】
1. 本课我学会了什么？
___________________________________________________________
2. 通过本课的学习，我还有哪些疑问？
_________________________________________________________
参考答案：
【课前预习】
一、1. 取决于，依靠 2. 想出，提出 3. 导致
4. 所有孩子 5. 利用别人的想法 6. 被用于……
二、1. This special pen was invented by Liu Jie.
2. It's hard to tell who thought of the idea first.
3. They think that inventors borrow other people's ideas to create their own inventions.
三、1. were used 2. were asked 3. personal 4. inventor 5. sudden
【合作探究】
探究四
2.?谋布局、写句子
(1) My new invention was invented three months ago
(2) My new invention is used for finding your glasses
(3) Follow the sound to look for your glasses
(4) how much my new invention is
5.?成篇章
May I have your attention, please??I'd like to introduce my new invention to you. It is an alarm on your glasses. It was invented three months ago. It is used for finding your glasses in your home or at school. The alarm is controlled by a remote control with a button on it.?First?press the button, and the alarm will make a sound.?Then?follow the sound to look for your glasses. You must want to know how much it is. It's 20 yuan.?It’s cheap and good.?You can afford one. Don't you hate it when you can't find your glasses? If so, please come to me and buy one.
【达标检测】
一、1. salty 2. popularity 3. daily 4. customers 5. nearly.
二、1.sudden 2.was invented 3.Canadian 4.were invited 5.popularity