Unit 6 When was it invented？ Section B 3a-self check 学案设计（无答案）
Unit6 When was it invented?
Name Group Class
Period 4
Section B 3a-self check
【Topic】
Talk about the history of inventions
【Get ready before class】
温故知新
一、 练一练:如何将主动语态变为被动语态?
1. Alexander Graham Bell invented the telephone in 1876.
________________________________________________________________ 2. The manger has not signed the papers.
________________________________________________________________ 3. I posted that letter last night.
________________________________________________________________ 4. They know that he is an expert.
________________________________________________________________ 5. I often hear him sing songs in the next room.
________________________________________________________________ 6. The boss make the workers work fifteen hours a day.
________________________________________________________________
二、你在这个单元里学了这么多的发明物，如果你在孤岛上，你最想拥有哪些呢？请完成一下句子，并在小组中表达自己的观点。
I’d like ______________________________________, because ___________ _ _______________________________________________________________________________ _______________________________________________________________________________ 三、背诵第5课时中的Section B 1a-2e部分，准备默写。
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Unit 6 When was it invented？ Section B 3a-self check 学案设计（无答案）
信息收集：
发明物大起底：同学们，这是老师千辛万苦找到的资料，了解一下历史吧。 The abacus was invented in the sixth century by Chinese people.
The umbrella was invented about 4000 years ago in Assyria, China and Egypt. In Italy in 1854, Ignatio Porro invented the binoculars.
The Camera was invented by Joseph Nicephore Niepce in 1827 who took the first picture. The bicycle was invented in the 1880s in England.
新知探究
一、我们在介绍发明的时候常常会用到以下句型，请同学们先试着造句吧！
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 was used for … 它被用来……
_______________________________________________________________________________ 5. … is made of ………是由……(材料)制成的
_______________________________________________________________________________
【Enjoy in class】
Feedback : 分享同学们喜爱的发明。
Writing
句子仿写：下面是课文里的佳句，大家动手模仿写一写吧：
1. Did you know that tea, the most popular drink in the world(after water),was invented by accident?
Did you know that _____________,_____________________in the world, was invented
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Unit 6 When was it invented？ Section B 3a-self check 学案设计（无答案）
_________________?
2. It is said that a Chinese ruler called Shen Nong was the first to discover tea as a drink.
It is said that 3. It was quite delicious, and so, one of the world’s favorite drinks was invented.
It was quite _________,and so, one of the world’s favorite _______________ was invented. 4. This helped to spread the popularity of tea and the tea plant to more places around the world. This helped/helps ___________ to ____________________________________________
写作指导
这是一篇介绍你的发明物情况的说明文，语态应为被动语态为主；时态应以一般现在时为___________ is one of the 主，辅以少量一般过去时态或其他时态的句子。写作时，应根据总起：most important inventions. It was invented ___________为首段，接着具体描述一下发明物的情况，最后进行总结这条主线，理清写作思路，逐条清晰地进行介绍。
注意：要恰当运用被动语态，检查时态以及句子结构等是否正确。
完成写作:Imagine you are a business person. Write a description of your new
invention. Try to sell the invention to the class.
自评： 互评： 师评：
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