八年级英语上册Unit4 Topic2 Section C仁爱版

Unit4 Topic2 Section C
The main activities are 1a and 2a. 本课重点活动是1a和2a。

Ⅰ. Teaching aims and demands 教学目标
1. Learn some useful words and expressions:
spend…on, dictionary, order, in alphabetical order, look up, pay attention to, begin with, write to
2. Talking about popular science and modern technology:
(1)We can go shopping without leaving our houses.
(2)We can use the Internet for finding jobs.
(3)But we shouldn’t spend too much time on the Internet.
(4)The Internet can tell you how to find a new place.
3. Learn how to look up new words in an English dictionary:
(1)I’m glad to tell you that I learned how to use the English-Chinese dictionary.
(2)The words in dictionaries are in alphabetical order.
(3)When you look up a word in the dictionary, you must pay attention to the first letter of the word.
Ⅱ. Teaching aids 教具
录音机/图片/英汉字典/调查表/小黑板
Ⅲ. Five-finger Teaching Plan 五指教学方案
Step 1 Review 第一步复习(时间:10分钟)
1. (通过对话复习有关UFO的知识。

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T: Hi! S1, are you sure there are UFOs?
S1: No, I’m not sure there are UFOs.
T: Why do you think so?
S1: Because until now, nobody seems to have really seen a UFO.
T: What are the scientists’ ideas?
S1: They aren’t sure whether there are UFOs.
T: What about the children’s ideas?
S1: Jane is sure there are UFOs.
Kangkang is not so sure there are UFOs.
Michael is quite sure there are UFOs.
Maria is sure there are no UFOs.
T: Why do some people think there are UFOs?
S1: Because people often mistake some man-made objects such as kites or balloons for UFOs.
(教师示范后，先让同学之间进行两两对话，然后挑几组学生表演出来。

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2. (通过讨论图片导入新课。

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T: We have learned a useful invention. Its name is robot. Robots can help us a lot.
Today we are going to study another invention.
(这时教师出示电脑的图片。

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T: What’s this?
S2: It’s a computer.
T: What can we do on the computer?
S3: We can play games on it.
S4: We can listen to the music on it.
S5: We can watch movies on it.
S6: We can write an e-mail on it.
(让学生尽可能多地说。

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T: Yes. That’s very good. And I often use the computer for downloading useful information.
use…for”的用法后，通过对话形式来询问学生，从而练习“use…for”这一句型。

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T: What do you often use the computer for?
S7: I use the computer for playing games.
….
Step 2 Presentation 第二步呈现(时间:10分钟)
1. T: I often use a computer for searching the Internet. The Internet is very useful
and wonderful. OK, I think all of you make a good use of the computer, so what can we do on the Internet? Read the passage in 1a and find out the answer to this question.
(板书)
(两分钟后核对答案。

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T: OK. Now please give me your answers. From S1 please, say it one by one.
S1:We can go shopping without leaving our houses .
S2:We can study on the Internet.
S3:We can use the Internet for finding a job.
S4:We can find the way to a new place on the Internet.
S5: We can listen to songs, watch movies and play games.
2. (学生跟读1a模仿语音和语调，并画出关键词句。

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T: OK. Now please read 1a after the tape. Pay attention to your pronunciation and intonation. And underline the key words and sentences.
(板书)
Step 3 Consolidation 第三步巩固(时间:10分钟)
1. (学生自读1a并理解文章大意。

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T: Now please read the passage by yourselves and get the general idea of it. 2. (学生根据关键词复述课文。

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T: OK. Boys and girls, please stop. According to the key words on the blackboard, please retell the text to your deskmate.After two minutes, I will ask someone to retell it in front of class.
(两分钟后，挑几名学生复述课文。

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3. (学生独立完成1b。

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T: OK. Now let’s move to 1b. First look at the pictures and complete the sentences with the words above. I will ask four students to write down the answers on the blackboard.
(核对答案。

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4. (做调查完成1c。

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T: Now let’s move to 1c. I will give everyone a piece of paper. There are four questions on it. Please answer them.
(教师将事先准备好的调查表发给学生。

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(根据上面的调查结果，小组讨论，然后各组选派代表在全班学生面前汇报调查结果。

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T: OK. After you finished your answers, please discuss your results in groups. Then report it to the class. I will give you an example of the report on the blackboard. (板书)
(让学生汇报调查结果，然后进行辩论。

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T: OK, that’s great. Every group gives us a good report. Now let’s have a debate about this topic. Is it good or bad to spend too much time on the Internet? Please give your opinions.
S1:It’s good for us because it’s helpful to us.
S2:It’s bad for our eyes.
S3:It’s bad for our health.
S4:If you spend too much time on the Internet, you can’t study well.
T: Internet is wonderful. There are lots of useful things on the Internet, so it can help us a lot. But we should not spend too much time on it.
(教师根据时间问题来安排活动，如果时间不够，可以作为课外活动。

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Step 4 Practice 第四步练习(时间:10分钟)
1. (老师拿出一个英汉字典。

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T: What’s this?
Ss: It’s a dictionary. (引导学生回答。

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T: Yeah, it’s an English-Chinese dictionary.
(板书)
T: Do you have an English-Chinese dictionary?
Ss:Yes, we do.
T: If you meet a new word while you are reading, what will you do?
Ss:I’ll look it up in the dictionary.
T: You are right! Do you know how to look up the words in the dictionary? Read 2a by yourselves, and then find out the answer to this question.
(学生自读三分钟，用铅笔画出重点句子。

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(板书)
(鼓励学生总结出如何查字典，为下步活动打下基础。

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T: Excellent!
(跟读2a，模仿语音语调。

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T: Listen to 2a and repeat.
(学生自读2a两分钟后，让学生根据黑板上的关键句编对话。

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T: According to the important sentences on the blackboard, please make up a dialog.
For example:
S1:Could you tell me how to use an English-Chinese dictionary?
S2:Certainly. When you look up a word in the dictionary, pay attention to the first letter of the word. When two words begin with the same letter, you have to look at the second letter to find the word. If both the first and second letter are the same, look at the third letter and so on.
S1:Thank you.
(然后挑几组学生进行表演。

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T: I’m pleased with your dialog. I hope everyone can know how to look up a word in a dictionary. Now I’ll give you a word “music”,can you find where it is?
(教师巡视，看谁先找到这个单词。

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(教师讲解如何查找生词，并做示范。

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T: I’m going to look up the word “music”in the dictionary. First I pay attention to the first letter “m”. Second, I have to look at the second letter “u”.
Then I look at the third letter “s”and so on. Now look, here is the word “music”.
2. (学生根据刚才所学的查字典的方法完成2b。

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Step 5 Project 第五步综合探究活动(时间:5分钟)
2. Homework:
Choose the best answer. (选择最佳选项。

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(1) Robots can do many kinds of .
A. a job
B. jobs
C. a work
D. works
(2) We can go shopping without our house.
A. leave
B. to leave
C. leaving
D. leaves
(3) We shouldn’t spend too much time it.
A. look for it
B. on
C. for
D.about
(4) If you don’t know the word, you may in a dictionary.
A. look for it
B.look it for
C.look up it
D.look it up
(5) People use robots for .
A. do boring job
B. do boring jobs
C. doing boring job
D. doing boring jobs.。