2013高三英语一轮复习教案：Unit3《Computers》（1）（新人教版必修2）
Aims:
Ss can get a good review of the key words, useful phrases and important sentences in this unit.
2. Ss can write a passage based on the language material they've reviewed.
Procedure:
Step 1
Ss have a good review of the key words, useful phrases and sentences.
Explain some usages of the key words and phrases.
signal / single / symbol / sign / sigh / scene / scenery / sight
White has always been a _______ of purity.
The policeman made a ________ to the driver to stop his car.
arise / happen / occur / come about / take place / break out
Great changes ____ in my hometown since I left.
A. have been taken place B. have taken place C. took place D. would take place
as a result / as a result of / result in / result from
___________global warming, the temperature of the earth is going up gradually, which _________ the rise of the sea level, and ___________ ,many countries are suffering a lot.
in a way / on one’s way to / by the way / in the way / in no way
我们绝不能忽视肢体语言的重要性。
In no way ______________________________________________________________.
城市发展如此之快，你想象不到它明天会是什么样子。
The city is developing so fast that you can never imagine what it will be like tomorrow.
无论如何，我的目标是考上一所好的大学。
Anyhow, my goal is to be admitted to a good university.
Step 2
Review some professional words in this text with some pictures.
1. A _____________machine (计算机器） can ___________(简化）difficult sums.
2. An___________ machine（分析机） can think “_________”(逻辑地）and produce an answer quicker than any men. It was regarded as_________________ and the start of _________________.
3. A ___________machine (通用机器）can solve difficult______________(数学的）problems and it is as large as a room.
Step3
Review the text and finish the timeline below. (This step is to make the students have a brief command of the whole text.)
1642
?The computer began as a calculating machine．
200 years later
The analytical machine was made by Charles Babbage.
1936
?Alan Turing wrote a book about how computers could be made to work as “universal machine”．
1940s
The computer had grown as large as a room.
1960s
The first family of computers was connected to each other.
1970s
?Many new applications have been found for computers.
now
Computers connect people all over the world together.
Step 4
Retell the story of the development of the computer with the given words. (This step is to have a good knowledge of the whole text and review some important structures and practice the students spoken English.)
Over time the computer has been changed quite a lot.
1642…simplify… think logically…artificial intelligence…universal machine… from then on…as large as… memory… smaller… network… applications…goal …
Step 5
Check the answer of translation which Ss have finished. (This step aims to know if Ss can use what they have learned to organize a passage.)
众所周知，电脑在我们生活中起着重要的作用。/在网上，我们不仅可以获悉国内外新闻，还可以阅读各种书籍，也能处理一些重要的事情。/在某种程度上，电脑使我们的生活更丰富多彩了。/但随着时间流逝，我越来越沉迷于网络游戏。结果，我对学习逐渐失去了兴趣。/幸运地是，在老师们的帮助下，我最终努力学习以至于考取了浙江大学。从那时起，我开始自己设计电脑程序。/我的目标是有一天能设计出一台智能的机器人，为人类提供高质量的生活。但不管怎样，我还有很长的路要走。
As we all know, computers are playing more and more important part in our daily life．On the Internet，we can learn about news both at home and abroad as well as read a variety of books and deal with some important things. In a way ,the Internet has definitely made our life more colorful．However, with time going by, I became increasingly addicted to computer games. As a result, I lost interest in my studies. Luckily, with the help of my teachers, I eventually worked so hard that I was admitted to Zhejiang University. From then on, I began to design programs for computers. My goal is to design an intelligent robot which can provide humans with a life of high quality. Anyhow, I still have a long way to go.
Step 6
Create a story of your own choosing some useful words. (This step is to develop the students’ imagination and improve their writing skill.)
(topics: English learning、swimming、cooking、drawing 、singing、playing chess …)
over time; It took … before…; at that time ; from then on ; as time went by; as I have grown older; until … ; as a result; with the help of; deal with; solve; anyhow; arise; goal; provide…with…
Step 7
Share some of the stories in class.
Step 8
Assignment
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