高中英語(yǔ)必修2Unit3Computers課時(shí)教案(人教新

1、課 時(shí) 教 案授課時(shí)間：第 周 年 月 日課 題 Unit 3 Computers 教 學(xué) 目 標(biāo)Teaching aim: go over this unit to master the usage of words; phrases and sentences patterns of this unit.教 學(xué) 重 點(diǎn)Important points: Grammar filling教 學(xué) 難 點(diǎn)Difficult points: Basic writing教 學(xué)方 法Summary；Exercises；Consolidation教 具Book II ； Blackboard；PPT；教

2、學(xué)時(shí) 數(shù)Three Periods: (two periods for key points, one period for exercise)教學(xué)過(guò)程Teaching steps: Step 1 Word study一、單詞拼寫(xiě) 根據(jù)詞性和詞義寫(xiě)出下列單詞。1._ vt. 計(jì)算 2._ vt. 簡(jiǎn)化3._ n. 接線(xiàn)員 4._ adv. 合邏輯的5._ n. 科技 6._ n. 革命7._ adj. 人造的 8._ n. 智力9_ vt. 解決 10._ adv. 親自 11._ n. 應(yīng)用 12._ n. 金融 13._ v. 探索 14._ adv. 無(wú)論如何15._ n. 目標(biāo) 16.

3、_ n. 信號(hào)17._ n. 類(lèi)型 18._ vi. 出現(xiàn)，19._ adj. 電子的， 20._ n. 外貌教學(xué)過(guò)程二、單詞運(yùn)用 根據(jù)句子的結(jié)構(gòu)和意義，在空格處填入一個(gè)恰當(dāng)?shù)膯卧~，或者用括號(hào)中所給的適當(dāng)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 _(網(wǎng)絡(luò)).三、詞語(yǔ)派生 用括號(hào)中所給詞的適當(dāng)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、詞組互譯 將下列詞組或短語(yǔ)譯成中文或英文。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. _ 技術(shù)革命 13. _ 處理；安排

9、；對(duì)付 14. _ 解決問(wèn)題 15. _ 人工智能 16. _ 走過(guò)；過(guò)去 17. _ 依某人看來(lái) 18. _ 采取行動(dòng)19. _ 與信息共享 20. _ 彌補(bǔ)、組成教學(xué)過(guò)程五、詞組運(yùn)用 詞組填空 根據(jù)句子提供的語(yǔ)境，從第四大題中選一個(gè)適當(dāng)?shù)脑~組并用其適當(dāng)?shù)男问教羁铡?. 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.翻譯填空 根據(jù)漢語(yǔ)意思，從上述短語(yǔ)中選一個(gè)恰當(dāng)?shù)脑~組完成句子。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 _ (五十多歲)are going to university for further education.句子翻譯 從上述短語(yǔ)中選擇恰當(dāng)?shù)亩陶Z(yǔ)翻譯下列句子。7她從那時(shí)起就知道自己會(huì)獲勝。8結(jié)果，他只得離開(kāi)。9在他父母的幫助下，他很快完成了作業(yè)。10在春天，我們通常將鐘表向前撥一小時(shí)，以充分利用日光。Step 3 Practice六、語(yǔ)法填空 閱讀下列短文，按照句子結(jié)構(gòu)

11、的語(yǔ)法性和上下文連貫的要求，在空格處填入一個(gè)適當(dāng)?shù)脑~或使用括號(hào)中詞語(yǔ)的正確形式填空。 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 (平臺(tái)) 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 (項(xiàng)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 (電子的) 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 “l(fā)ight reading”. They have powerful electro

15、nic features such 40 a built-in dictionary, world search and bookmarks.七、基礎(chǔ)寫(xiě)作 用括號(hào)中所給詞翻譯下列句子，然后將這些句子聯(lián)成一篇5句話(huà)的連貫的短文。1. 隨著歲月的流逝，計(jì)算機(jī)在我們的日常生活中變得越來(lái)越重要。(as, go by, more and more, in our daily life)2. 我們利用計(jì)算機(jī)查找我們所需要的資料；從某種意義上說(shuō)，計(jì)算機(jī)是我們的好幫手。(make use of, information, in a way)3. 巧板學(xué)生沉迷于網(wǎng)絡(luò)游戲，這對(duì)身體健康有害。(fall in lo

16、ve, be harmful to)4. 依我來(lái)看，計(jì)算機(jī)有優(yōu)點(diǎn)，也有缺點(diǎn)。(in ones opinion, advantage, disadvantage)5. 家長(zhǎng)應(yīng)該看護(hù)子女，如何用好計(jì)算機(jī)。(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核心單詞1. personally adv. 親自(= in person)，依本人之見(jiàn)，就人而論P(yáng)ersonally, I couldnt work to live. 就我個(gè)人而言，我無(wú)法為生存而工作。Youd better talk to him personally.你最好親自去跟他說(shuō)。We like him personally, but disl

18、ike his way of living. 我們喜歡他這個(gè)人, 但不喜歡他的生活方式。說(shuō)明：該副詞用于句首時(shí)，意為“就個(gè)人而言”，相當(dāng)于as far as I am concerned。運(yùn)用：用personally翻譯句子或完成句子。(1)就本人而言，我贊同這個(gè)計(jì)劃。 _(2)我不喜歡他的為人，但我欽佩他的藝術(shù)。_, but I admire his art.2. create v. 創(chuàng)造；產(chǎn)生A novelist creates characters and a plot. 小說(shuō)家塑造人物和故事情節(jié)。His appearance created a bad impression. 他的外表

19、給人留下了不好的印象。運(yùn)用：用create翻譯句子。(1)健康和財(cái)富能創(chuàng)造美麗。_(2)我們所做的就是創(chuàng)造“價(jià)值”。_3. arise vi. 出現(xiàn)(appear)，發(fā)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，由而產(chǎn)生辨析rise,

20、raise 和arise： rise和arise都是不及物動(dòng)詞；rise意為：站起，起床；升起；arise意為：出現(xiàn)，發(fā)生；起身；起床。 raise 是及物動(dòng)詞。意為：舉起；養(yǎng)育；種植；籌款選用上述詞并用其適當(dāng)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. 游蕩，閑逛；離開(kāi)正道，離題；開(kāi)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.運(yùn)用：根據(jù)漢語(yǔ)完成英文句子。(1)這堂課太糟了，我都開(kāi)始走神了。The class is so boring that_.(2)我喜歡晚飯后在公園里閑逛。I like to _after dinner.5. simple-minded adj. 愚蠢的，頭腦簡(jiǎn)單的She is simple-mi

22、nded.她心地單純。聯(lián)想：請(qǐng)猜猜下列合成詞的意思。(1)open-minded _(2)absent-minded _(3)broad-minded _(4)fashion-minded _重要詞組1. go by = pass（時(shí)間）流逝，經(jīng)過(guò)(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.聯(lián)想：填入適當(dāng)?shù)慕樵~或副詞。(1)go _進(jìn)行，(做，說(shuō))吧 (2)go _追求，追趕(3)go _上升 (4)go _下降 (5)go _繼續(xù) (6)go _離開(kāi)；爆炸 (7)go _熄滅 (8)go _經(jīng)歷(9)go _沒(méi)有而勉強(qiáng)湊合2deal with處理，涉及，對(duì)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與do withdo with表示“處置，與相處，忍受”等，do是及物動(dòng)詞，就某事做些什么，應(yīng)用what，what是do的賓語(yǔ)；而deal with中的deal是不及物動(dòng)詞，表示應(yīng)付或安排什么，應(yīng)用how，how是deal with的狀語(yǔ)。3. make up編造，組成，化妝，和解 make out 辯認(rèn)出，理解，填寫(xiě)，開(kāi)出理解：指出各句中劃線(xiàn)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：翻譯下短語(yǔ)。(1)make up for _ (2)make up ones mind_(3)be made up of _運(yùn)用：用含make up的短語(yǔ)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