1、2013高三英语一轮复习教案：Unit3Computers（1）（新人教版必修2）Aims:1 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 theyve reviewed.Procedure:Step 1Ss have a good review of the key words, useful phrases and sentences
2、. Explain some usages of the key words and phrases.1. signal / single / symbol / sign / sigh / scene / scenery / sightWhite has always been a _ of purity.The policeman made a _ to the driver to stop his car.2. arise / happen / occur / come about / take place / break outGreat changes _ in my hometown
3、 since I left.A. have been taken place B. have taken place C. took place D. would take place3. 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.4. in
4、 a way / on ones 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 _.5. 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.6. 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 2Review some p
5、rofessional 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.
6、Step3Review the text and finish the timeline below. (This step is to make the students have a brief command of the whole text.)1642The computer began as a calculating machine200 years laterThe analytical machine was made by Charles Babbage.1936Alan Turing wrote a book about how computers could be ma
7、de to work as “universal machine”1940sThe computer had grown as large as a room.1960sThe first family of computers was connected to each other.1970sMany new applications have been found for computers.nowComputers connect people all over the world together.Step 4Retell the story of the development of
8、 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. 1642simplify think logicallyartificial intelligenceuniversal machine from t
9、hen onas large as memory smaller network applicationsgoal Step 5Check 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
10、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 lifeOn the Internet，we can learn about news both at home and abroad as well as read a variety
11、of books and deal with some important things. In a way ,the Internet has definitely made our life more colorfulHowever, 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
12、 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 6Create a story of your own choosing some useful words. (Th
13、is 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; providewithStep 7 Share some of the stories in class.Step 8Assignment