2014年九年級英語上冊教學(xué)教案Unit4Topic3SectionC

1、Section C. Material analysis本課是九年級第四單元第三話題的第三課時。主活動是1a和2。1a介紹了電腦在各行各業(yè)中的作用，也提醒了學(xué)生要合理地利用電腦和網(wǎng)絡(luò)。在這個信息爆炸的時代，學(xué)生很容易迷失方向，辨別信息的真假尤其重要。1b既可以通過提綱式結(jié)構(gòu)來鞏固1a的內(nèi)容，也可以讓學(xué)生學(xué)習(xí)在寫作中運用這種方法來草擬提綱。2這個寫作任務(wù)，可以讓學(xué)生充分發(fā)揮想象，如果沒有了電腦，生活會變成什么樣子。這從另一個角度讓學(xué)生感受電腦對我們生活的重大影響。為了能讓學(xué)生有足夠的時間來完成這個任務(wù)，建議留作家庭作業(yè)。.Teaching aims1. Knowledge aims： 掌握本課的

2、重點詞匯和短語，繼續(xù)學(xué)習(xí)定語從句。2. Skill aims:能夠通過1a的pre-reading 任務(wù)來預(yù)測1a的內(nèi)容。能夠借助1b的提綱復(fù)述1a的內(nèi)容，并把這種提綱式的結(jié)構(gòu)運用到寫作中。能夠快速找到段落的中心句、辨別論證句。3. Emotional aims: (optional)電腦和網(wǎng)絡(luò)是個雙刃劍，在利用它來服務(wù)于生活、學(xué)習(xí)的同時，不能沉溺于游戲游戲，并且要自覺遠(yuǎn)離不良信息的誘惑。. The key points and difficult points1. Key points: Words and phrases: doubt, tiny, inside, brain, cance

3、l, connect, no doubt, normally, for instance, besides, properly, be useful in,with the help of, for example, keep sth/sb. doing, place orders, thanks to, come into being, instead of doing sth. Sentences: There is no doubt that computers are very useful in technology and business. For example, tiny c

4、omputers which are inside patients bodies can keep their hearts beating normally. In factories, robots are controlled by computers that are like human brains.Grammar: Attributive clause2. Difficult points： In space, computers have been used to control the speed and direction of a spaceship. Besides,

5、 not everything we read on the Internet is true or good for us. Computers help us at work and at home, but they must be used properly. Learning strategies 通過標(biāo)志詞，如：for instance, for example, besides來找到屬于舉例子的句子。 能夠根據(jù)經(jīng)驗快速識別文段的中心句。 能夠根據(jù)pre-reading的任務(wù)來預(yù)測文章的內(nèi)容。. Teaching aid小黑板/圖片/ppt等。. Teaching procedur

6、es Stage(time period)InteractionpatternsTeacher activityStudent activityRemarks1 Revision(3mins)Pair workEncourage the Ss to exchange their HMK with their partners, and check the answers by themselves.T: Hi, class! Nice to see you again. In the last period, I asked you to make up five sentences. Hav

7、e you done them?T: Fine. Then exchange your sentences with your partners and check the answers by yourselves. If you finish, put up your hand.T: Now, Ill choose some pairs to show your sentences. xxx and xxx, please.T: Another pair? Exchange HMK with their partners and check the answers by themselve

8、s.Ss: Yes.S1: The Great Wall which/that was built in ancient China is regarded as the symbol of Chinese nation.S2: The girls who/that are dancing in the gym are from Class Six.S3: S4: 對于學(xué)生出現(xiàn)的錯誤，老師要馬上指出來，以降低后面的學(xué)生犯同樣錯誤的機率。2Pre-reading(7mins)Individual workClass activityStep1: Let the Ss tick the field

9、s we use computer in.T: As we know, computers are now widely used. Now, turn to page 101. You can see many fields in 1. Please tick the fields we use computers in.T: xxx, which fields have you ticked?T: How about you, xxx? T: But do you know what the seventh word means?T: It means“l(fā)eisure”. Do you k

10、now“l(fā)eisure”?T: Quite right. Now, class, follow me, “entertainment”.Step 2: Encourage the Ss to give an example of the use of the computers in one of the fields mentioned in 1.T: There is no doubt that computers are very useful. So Id like you to give an example of the use of the computers in one of

11、 the fields mentioned in 1. Can you, xxx?T: Good idea! Next one?T: Yes. I like shopping on the Internet. The goods are cheap, so I often place orders in Taobao. And sometimes, if I dont want the goods, I can cancel the orders. T: Computers have become very important in many areas of work and leisure

12、. You can find more information in 1a.Tick the fields we use computer in.S1: AllS2: Me, too.S2: Sorry, I dont know.S3:休閑、娛樂。Ss: entertainmentGive an example of the use of the computers in one of the fields mentioned in 1. S1: I think computers are useful in education. We can use them to search for h

13、elpful information. S2: In business, we can do some shopping on the Internet.S3: S4: 老師要利用點評的機會講解新詞：doubt, cancel。3While-reading(10mins)Individual workLet the Ss read 1a, underline the topic sentence of each paragraph and do 1b. Check the answers.T: Now, lets read 1a. You will learn about computers.

14、 You have two tasks while reading. One is to underline the topic sentence of each paragraph; the other is to complete the diagram in 1b. Pay attention to the expressions as “for example, for instance, besides”. They are usually used to give examples. When you finish the two tasks, please raise your

15、hand.T: Now, lets check the topic sentences first. xxx, whats the topic sentence of paragraph 1?T: Yes, you got it. Paragraph 2, who?T: Very good job. Now, lets check the answers to the diagram. One student for one point. xxx, can you try the first point?T: Up to now, I think you have learned a lot

16、about the use of computers, havent you?Read 1a, underline the topic sentence of each paragraph and do 1b. Check the answers and finish 1b.S1: Since computers were and leisure.S2: Since the Internettoo.S3: Computers have improved, too.S4: control the speed and direction of a spaceship.S5: find diseas

17、es easilyS6: Ss: Yes.不要擔(dān)心沒有解決新詞就讓學(xué)生完成任務(wù)。其實1b就是文章的大意。就是要培養(yǎng)學(xué)生獲取信息的能力。另外要學(xué)生注意表示舉例子的詞語：for example, for instance, besides 等。4Post-reading(20mins)Individual workClass activityGroup workStep 1: Let the Ss read 1a again to find the new words and attributive clauses.T: Now, lets read 1a again. You should ci

18、rcle the new words and underline the attributive clauses this time. When you finish, put up your hand.T: There are five attributive clauses in this passage. See how many you have found. Who wants to have a try? T: Marvelous! You have found four of them. Where is the last one? T: Its here! Turn to pa

19、ge 102. Look at the sentence “Besides, not everything we read on the Internet is true or good for us”. In fact, there is a “that” after “everything”. In this clause, the relative pronoun “that” acts as the object of the verb “read”. In this case, the relative pronoun is usually omitted.Step 2: Let t

20、he Ss learn the new words by word formation or synonyms: in+side=inside, normal(adj)+ly=normally(adv), work+place=work-place, proper(adj)+ly=properly (adv), tiny=very small, connect=join together, for instance=for example, besides=whats more=moreover =in addition.T: Now, try to guess the meaning of

21、the new words and then turn to the vocabulary list to learn the pronunciation.Step 3: Let the Ss read 1a again and discuss in groups to find the difficult and key points.T: We have read the passage twice. Maybe some of you still have some problems. Now, read 1a again and discuss in groups to find th

22、e difficult and key points as well. When you finish, put up your hand.T: First, lets solve the difficult points. Which group first?T: “There is no doubt that”is a useful pattern. It means “Its certain that”. Who can put it into Chinese?T: Brilliant! Thats it.T: Any other questions?T: They are not ex

23、actly the same. Look at the example “What other sports do you like besides football?” and “I like all sports except football”. The first example means “He likes football, too”, but the second example means “He doesnt like football at all.” Have you got it?T: You are right. T: There are many useful e

24、xpressions in this passage. Group 1, please speak out what you have found.Read 1a again to find the new words and attributive clauses.S1: For example, tiny computers which are inside patients bodies can keep their hearts beating normally. S2: In factories, robots are controlled by computers that are

25、 like human brains.S3: .S4: Ss: Sorry, we dont know.Learn the new words by word formation or synonyms.Read 1a again and discuss in groups to find the difficult and key points.S1: How to understand “There is no doubt thatin business?S2: 毫無疑問S3: besides 是“除了”，except 也是“除了”，它們兩個一樣嗎？S4: 我的理解是“besides”是包

26、括在內(nèi)，“except”是不包括在內(nèi)。S5: in many areas of ., with the help of, for example, for instance, S6: keep sth/sb. doing sth, place orders, come into being,S7: thanks to, instead of doing sth., at work,對于文章末尾出現(xiàn)的新形式的定語從句，老師可以提一下。并指出關(guān)系代詞“that”被省略了，因為它在從句中作賓語。當(dāng)學(xué)生找出新詞后，老師要按照構(gòu)詞法、近義詞或反義詞來歸類讓學(xué)生學(xué)習(xí)。對于本課內(nèi)的詞組辨析，不一定都要在本次

27、課內(nèi)解決，也可以放一點在講解作業(yè)時處理。如：for example和for instance, besides 和except。5Summarizing and assigning homework (5mins)Class activityStep1: Let the Ss retell the main content of 1a according to the diagram in 1b.T: Up to now, we have learned much about computers. Now, lets retell the main content of 1a accordin

28、g to the diagram in 1b. Get ready. Go!Step 2: HMKLet the Ss read the instructions in 2 and write a short passage with the given title.T: Now, computers are becoming more and more important in our life. Can you imagine what the world would be like if there are no computers one day? Read the instructions in 2 and write a short passage with the title “One Day Without Computers” after class.Repeat