高中英语必修2Unit3Computers课时教案(人教新

1、课 时 教 案授课时间：第 周 年 月 日课 题 Unit 3 Computers 教 学 目 标Teaching aim: go over this unit to master the usage of words; phrases and sentences patterns of this unit.教 学 重 点Important points: Grammar filling教 学 难 点Difficult points: Basic writing教 学方 法Summary；Exercises；Consolidation教 具Book II ； Blackboard；PPT；教

2、学时 数Three Periods: (two periods for key points, one period for exercise)教学过程Teaching steps: Step 1 Word study一、单词拼写 根据词性和词义写出下列单词。1._ vt. 计算 2._ vt. 简化3._ n. 接线员 4._ adv. 合逻辑的5._ n. 科技 6._ n. 革命7._ adj. 人造的 8._ n. 智力9_ vt. 解决 10._ adv. 亲自 11._ n. 应用 12._ n. 金融 13._ v. 探索 14._ adv. 无论如何15._ n. 目标 16.

3、_ n. 信号17._ n. 类型 18._ vi. 出现，19._ adj. 电子的， 20._ n. 外貌教学过程二、单词运用 根据句子的结构和意义，在空格处填入一个恰当的单词，或者用括号中所给的适当形式填空。1. At the end of a letter you should write “Yours _” and your name.2. With the development of science and _, people will live a happier life.3. IQ(智商) stands for _ quality.4. The captain had an

4、 _ leg, made of wood.5. English is a _ language, so we have to learn it.6. An a_ is a calculating tool for dealing with figures in ancient China.7. One Laptop per Child is a non-profit association devoted to research to develop a 100 l_ for every child in the world.8. During the course, students wil

5、l develop their _(analysis) skills.9. The _ (develop) of the information technology was the greatest advance of the 20th century.10. We will soon arrive at the point where we can find all the knowledge of humankind on a computer _(网络).三、词语派生 用括号中所给词的适当形式填空。1. Try to _ (simple) your explanation for t

6、he students to help them understand better.2. If you want to know about the hotel, you can call the _ (operate) to find out the information.3. The boy is very clever and he shows high _ (intelligent) in study.4. _ (real) is not the way you wish things to be but the way they actually are.5. Bob is _

7、(total) different from his father, who is very tall.6. They agreed to accept my _ (apply) for joining their team.7. His success in business brought _ (happy) to his parents.8. We will make a _ (person) visit to the students home.9. His speech is _ (logical) organized and sounds great.10. I disagree

8、that the age of _ (technology) revolution has ended.Step 2 Phrases reviewing 四、词组互译 将下列词组或短语译成中文或英文。1. fromon _ 2. as a result _ 3. sothat _4. in a way _ 5. with the help of _ 6. deal with _7. watch over _ 8. as time goes by _ 9. in/during the 1970s _10. after all _11. _ 公有；共用 12. _ 技术革命 13. _ 处理；安排

9、；对付 14. _ 解决问题 15. _ 人工智能 16. _ 走过；过去 17. _ 依某人看来 18. _ 采取行动19. _ 与信息共享 20. _ 弥补、组成教学过程五、词组运用 词组填空 根据句子提供的语境，从第四大题中选一个适当的词组并用其适当的形式填空。1. They had a lot _ and became good friends very soon.2. How are you going to _ such problems?3. Dont blame him. _, he is a child.翻译填空 根据汉语意思，从上述短语中选一个恰当的词组完成句子。4. He

10、 soon _ the lessons he missed.5. Why didnt you _ to put out the fire?6. It is not rare in _ (九十年代) that people in _ (五十多岁)are going to university for further education.句子翻译 从上述短语中选择恰当的短语翻译下列句子。7她从那时起就知道自己会获胜。8结果，他只得离开。9在他父母的帮助下，他很快完成了作业。10在春天，我们通常将钟表向前拨一小时，以充分利用日光。Step 3 Practice六、语法填空 阅读下列短文，按照句子结构

11、的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。 eBay is the worlds online marketplace, 31 enables individuals and small Business to trade on a local, national and international basis32 (found) in September 1995, eBay provides a platform (平台) 33 the sale of goods and services to more than 135 million regi

12、stered members from all around 34 world. Globally, eBay has more than 44 million items (项目) listed for sale at any one time. And an additional 4 million items 35 (add) daily. There are more than 50,000 kinds, including computers, art, toys, stamps, magazines music, glass, electronics, jewelry, e-Boo

13、ks and so on.Electronic (电子的) books or e-Books are texts designed to be read only 36 a computer screen. The greatest advantage of e-Books is that you can get the relevant information at the press of a button. Buying e-Books on eBay is easy. You can order e-Books online and they will be delivered (交付

14、) electronically to your computer. So you can 37_ money with no shopping, no taxes, and the lowest prices. You could visit e-Book Mall that has the worlds largest 38_ (choose) of quality eBook. Or go to Gemstar e-Books that give a new 39 (mean) to the term “light reading”. They have powerful electro

15、nic features such 40 a built-in dictionary, world search and bookmarks.七、基础写作 用括号中所给词翻译下列句子，然后将这些句子联成一篇5句话的连贯的短文。1. 随着岁月的流逝，计算机在我们的日常生活中变得越来越重要。(as, go by, more and more, in our daily life)2. 我们利用计算机查找我们所需要的资料；从某种意义上说，计算机是我们的好帮手。(make use of, information, in a way)3. 巧板学生沉迷于网络游戏，这对身体健康有害。(fall in lo

16、ve, be harmful to)4. 依我来看，计算机有优点，也有缺点。(in ones opinion, advantage, disadvantage)5. 家长应该看护子女，如何用好计算机。(watch over, how to use)One possible versionAs time goes by, computer is more and more important in our daily life. We can make use of it to find out information we need. In a way, computer is our goo

17、d helper. However, students fall in love with games in the Internet, it is harmful to their health.Step 4 : Points usages核心单词1. personally adv. 亲自(= in person)，依本人之见，就人而论Personally, I couldnt work to live. 就我个人而言，我无法为生存而工作。Youd better talk to him personally.你最好亲自去跟他说。We like him personally, but disl

18、ike his way of living. 我们喜欢他这个人, 但不喜欢他的生活方式。说明：该副词用于句首时，意为“就个人而言”，相当于as far as I am concerned。运用：用personally翻译句子或完成句子。(1)就本人而言，我赞同这个计划。 _(2)我不喜欢他的为人，但我钦佩他的艺术。_, but I admire his art.2. create v. 创造；产生A novelist creates characters and a plot. 小说家塑造人物和故事情节。His appearance created a bad impression. 他的外表

19、给人留下了不好的印象。运用：用create翻译句子。(1)健康和财富能创造美丽。_(2)我们所做的就是创造“价值”。_3. arise vi. 出现(appear)，发生(happen)，起身，起因于理解：指出下列句中arise的意思。(1)Problems will arise as we do the work.(2)How did this quarrel arise? (3)When I fall, I will arise.(4)Accidents often arise from carelessness.搭配：arise from/out of 由而引起，由而产生辨析rise,

20、raise 和arise： rise和arise都是不及物动词；rise意为：站起，起床；升起；arise意为：出现，发生；起身；起床。 raise 是及物动词。意为：举起；养育；种植；筹款选用上述词并用其适当形式填空。A new situation will _when the examination system comes into existence. He _ his hands to tell the teacher what he wanted to say.He _ early this morning.4. wander vi. 游荡，闲逛；离开正道，离题；开小差；(河流等)

21、蜿蜒理解：指出下列各句中wander的意思。(1)He wandered in the streets. (2)He wandered from the subject. (3)My attention wandered.(4)The stream wanders through the forest.运用：根据汉语完成英文句子。(1)这堂课太糟了，我都开始走神了。The class is so boring that_.(2)我喜欢晚饭后在公园里闲逛。I like to _after dinner.5. simple-minded adj. 愚蠢的，头脑简单的She is simple-mi

22、nded.她心地单纯。联想：请猜猜下列合成词的意思。(1)open-minded _(2)absent-minded _(3)broad-minded _(4)fashion-minded _重要词组1. go by = pass（时间）流逝，经过(地方)，遵守理解：指出go by在下列句中的意思。(1)I go by the house every day.(2)Thats a good rule to go by.(3)You cant always go by appearances.(4)She becomes more and more talkative as time goes

23、by.联想：填入适当的介词或副词。(1)go _进行，(做，说)吧 (2)go _追求，追赶(3)go _上升 (4)go _下降 (5)go _继续 (6)go _离开；爆炸 (7)go _熄灭 (8)go _经历(9)go _没有而勉强凑合2deal with处理，涉及，对付理解：指出deal with在下列各句中的意思。(1)He has to deal with the problem carefully. (2)You should deal with your work more carefully. (3)This report deals with the present si

24、tuation in the Mid-East.辨析：deal with与do withdo with表示“处置，与相处，忍受”等，do是及物动词，就某事做些什么，应用what，what是do的宾语；而deal with中的deal是不及物动词，表示应付或安排什么，应用how，how是deal with的状语。3. make up编造，组成，化妆，和解 make out 辩认出，理解，填写，开出理解：指出各句中划线部分的意思。(1)Farm workers make up only a small section of the population.(2)The student made up

25、 an excuse for his being late.(3)The girl made up her face carefully before going to meet James.(4)They had an argument, but they have already made up.(5)To this day I still cant make out why they did so.(6)His handwriting is so bad that I can hardly make it out.(7)The teacher made out the report cards and gave them to the students to take home.拓展：翻译下短语。(1)make up for _ (2)make up ones mind_(3)be made up of _运用：用含make up的短语填空。(1) The medical team _twelve doctors.(2) In Britain today women _ 44% of the work force, and nearly half the mothers with children are in