Section C
Ⅰ. Material analysis
本课是九年级第四单元第三话题的第三课时。主活动是1a和2。1a介绍了电脑在各行各业中的作用，也提醒了学生要合理地利用电脑和网络。在这个信息爆炸的时代，学生很容易迷失方向，辨别信息的真假尤其重要。1b既可以通过提纲式结构来巩固1a的内容，也可以让学生学习在写作中运用这种方法来草拟提纲。2这个写作任务，可以让学生充分发挥想象，如果没有了电脑，生活会变成什么样子。这从另一个角度让学生感受电脑对我们生活的重大影响。为了能让学生有足够的时间来完成这个任务，建议留作家庭作业。 Ⅱ.Teaching aims 1. Knowledge aims：
掌握本课的重点词汇和短语，继续学习定语从句。 2. Skill aims:
能够通过1a的pre-reading 任务来预测1a的内容。
能够借助1b的提纲复述1a的内容，并把这种提纲式的结构运用到写作中。 能够快速找到段落的中心句、辨别论证句。 3. Emotional aims: (optional)
电脑和网络是个双刃剑，在利用它来服务于生活、学习的同时，不能沉溺于游戏游戏，并且要自觉远离不良信息的诱惑。 Ⅲ. The key points and difficult points 1. Key points:
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Words and phrases: doubt, tiny, inside, brain, cancel, 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 computers 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 clause 2. Difficult points：
In space, computers have been used to control the speed and direction of a spaceship. Besides, 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. Ⅳ. Learning strategies
通过标志词，如：for instance, for example, besides来找到属于举例子的句子。 能够根据经验快速识别文段的中心句。
能够根据pre-reading的任务来预测文章的内容。 Ⅴ. Teaching aid 小黑板/图片/ppt等。 Ⅵ. Teaching procedures
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Stage (time period) Interaction patterns Teacher activity Encourage 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. Have you done them? Student activity Exchange HMK with their partners and check the answers by themselves. Ss: Yes. Remarks 对于学生出现的错误，老师要马上指出来，以降低后面的学生犯同样错误的机率。 1 Revision (3mins) T: Fine. Then exchange your sentences with Pair work your partners and check the answers by yourselves. If you finish, put up your hand. S1: The Great Wall which/that was T: Now, I’ll choose some pairs to show your built in ancient China is regarded as sentences. xxx and xxx, please. T: Another pair? the symbol of Chinese nation. S2: The girls who/that are dancing in the gym are from Class Six. S3: … S4: …
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Individual Step1: Let the Ss tick the fields we use Tick the fields we use computer in. work Pre-reading (7mins) Class activity computer in. 老师要利用点评的机会讲解新词：doubt, cancel。 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? S1: All S2: Me, too. 2 T: But do you know what the seventh word S2: Sorry, I don’t know. means? S3:休闲、娱乐。 T: It means“leisure”. Do you know“leisure”? Ss: entertainment T: Quite right. Now, class, follow me, “entertainment”. Step 2: Encourage the Ss to give an Give an example of the use of the example of the use of the computers in one computers in one of the fields of the fields mentioned in 1. mentioned in 1. 4
T: There is no doubt that computers are very useful. So I’d like you to give an example of the use of the computers in one of the fields mentioned in 1. Can you, xxx? T: Good idea! Next one? S1: I think computers are useful in education. We can use them to T: Yes. I like shopping on the Internet. The search for helpful information. goods are cheap, so I often place orders in S2: In business, we can do some Taobao. And sometimes, if I don’t want the shopping on the Internet. goods, I can cancel the orders. T: Computers have become very important S3: … in many areas of work and leisure. You can S4: … find more information in 1a. Let the Ss read 1a, underline the topic Read 1a, underline the topic 不要担心没有解决新词While- 3 reading (10mins) Individual work sentence of each paragraph and do 1b. sentence of each paragraph and do 就让学生完成任务。其实Check the answers. 1b. Check the answers and finish 1b. 1b就是文章的大意。就是要培养学生获取信息的能力。另外要学生注意T: Now, let’s read 1a. You will learn about computers. You have two tasks while
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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 S1: Since computers were …and give examples. When you finish the two leisure. tasks, please raise your hand. S2: Since the Internet…too. 表示举例子的词语：for example, for instance, besides 等。 T: Now, let’s check the topic sentences S3: Computers have improved…, first. xxx, what’s the topic sentence of too. paragraph 1? T: Yes, you got it. Paragraph 2, who? S4: control the speed and direction T: Very good job. Now, let’s check the of a spaceship. answers to the diagram. One student for S5: find diseases easily one point. xxx, can you try the first point? S6: … Ss: Yes. 6
T: Up to now, I think you have learned a lot about the use of computers, haven’t you? Individual Step 1: Let the Ss read 1a again to find the Read 1a again to find the new words 对于文章末尾出现的新work Post- 4 reading (20mins) new words and attributive clauses. and attributive clauses. 形式的定语从句，老师可以提一下。并指出关系代词“that”被省略了，因为它在从句中作宾语。 T: Now, let’s read 1a again. You should circle the new words and underline the attributive clauses this time. When you finish, put up your hand. S1: For example, tiny computers T: There are five attributive clauses in this which are inside patients’ bodies can passage. See how many you have found. keep their hearts beating normally. Who wants to have a try? S2: In factories, robots are controlled by computers that are like human brains. S3: .. S4: … T: Marvelous! You have found four of them. Where is the last one? Ss: Sorry, we don’t know.
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Class activity T: It’s here! Turn to page 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. 当学生找出新词后，老师要按照构词法、近义词或反义词来归类让学生学习。 Step 2: Let the Ss learn the new words by Learn the new words by word word formation or synonyms: in+side=inside, formation or synonyms. normal(adj.)+ly=normally(adv.), work+place=work-place, proper(adj.)+ly=properly (adv.), tiny=very small, connect=join… example, together, for instance=for besides=what’s more=moreover =in addition. T: Now, try to guess the meaning of the new 8
Group work words and then turn to the vocabulary list to learn the pronunciation. Step 3: Let the Ss read 1a again and discuss Read 1a again and discuss in groups 对于本课内的词组辨析，in groups to find the difficult and key to find the difficult and key points. points. 不一定都要在本次课内解决，也可以放一点在讲解作业时处理。如：for example和for instance, besides 和except。 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 the difficult and key points as well. When you finish, put up your hand. T: First, let’s solve the difficult points. S1: How to understand “There is no Which group first? doubt that…in business? T: “There is no doubt that…”is a useful S2: 毫无疑问…… pattern. It means “It’s certain that…”. Who can put it into Chinese? T: Brilliant! That’s it. S3: besides 是“除了”，except 也是“除了”，它们两个一样吗？
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T: Any other questions? S4: 我的理解是“besides”是包括在T: They are not exactly the same. Look at 内，“except”是不包括在内。 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 doesn’t like football at S5: in many areas of .., with the help all.” Have you got it? T: You are right. of…, for example, for instance, … S6: keep sth/sb. doing sth, place T: There are many useful expressions in this orders, come into being,… passage. Group 1, please speak out what S7: thanks to, instead of doing sth., you have found. Summarizing and 5 assigning homework (5mins) Class activity at work,… 在复述课文时，老师要引导和带动学生。不要求和Step1: Let the Ss retell the main content of Repeat the content of 1a according 1a according to the diagram in 1b. to the diagram in 1b. T: Up to now, we have learned much about T&Ss: In space，computers are used 课文一模一样。 computers. Now, let’s retell the main content to control the speed and direction of of 1a according to the diagram in 1b. Get a spaceship. In hospitals, computers 10
ready. Go! Step 2: HMK Let 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.
help doctors to find diseases easily. In factories, the robots which are controlled by computers can do some dangerous work ….
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Ⅶ. Blackboard design
China is the third nation that sent a person into space. Section C Words and phrases： doubt tiny brain cancel in+side=inside normal+ly=normally entertain+ment=entertainment work+place=workplace proper+ly=properly for instance=for example Sentences： There is no doubt that computers are very useful in technology and business. For example, tiny computers which are inside patients’ bodies can keep their hearts beating normally. In factories, robots are controlled by computers that are like human brains. Besides, not everything we read on the Internet is true or good for us.
Grammar： attributive clause : 关系代词做主语（不能省略） 关系代词做宾语（常省略） 12
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