八年级英语上册Unit4 Topic2 Section D_1仁爱版.doc

Unit4 Topic2 Section D
     重点活动是1和3。
教学目标:
     1.复习本话题中谈论机器人、UFO和Internet过程中出现的重点句型和习惯用语。
     2.重点词组和句型：
switch on, had better do..., ask...for...
教学过程：
     第一步：复习
让学生用流畅的英语谈论机器人、UFO和Internet。也可以以师生对话的方式进行问答。如：
     The first robot was invented in 1921. Robots can do a lot of dangerous and hard work instead of humans. They work without pay. I’m sure they can do some work faster and better than humans. But I don’t think they can take the place of us because we control them.
     I have never seen a UFO. I’m sure there are no UFOs. Until now, nobody seems to know UFOs, even scientists. People often mistake some manmade objects for UFOs. We can only get information about UFOs through books, movies, radios, the Internet and TV.
     The Internet can help us to do a lot of things. We can use the Internet for studying, shopping, listening to some music, watching movies, playing games, and even finding jobs. The Internet is interesting and useful. But we shouldn’t spend too much time on it. We must study well first.
     第二步：呈现
学习生词(下面划线的单词为生词，方框内为板书)。
教师可以用图片或影像像下面这样引出本课的生词：
T: If you want to use a computer, what do you do first?
S: We must turn it on first.
T: Yes, we should press the“On”switch. But if nothing happens after that, there must be something wrong with the computer. We should repair it.
turn on = switch on
press
happen
repair

第三步：巩固
1.完成 1。
turn on = switch on
press
happen
repair
useless
2.两两对话，表演1的对话。
     第四步：练习
根据1的对话，自由结组编新的对话，可以假设自己的自行车、电话或电视机坏了。
     第五步：活动产品
1.阅读2a和2b，复习和巩固本话题的重点句型和习惯用语。
2.完成3和4。
3.要点回顾。
4.布置作业。
Section D
     The main activities are 1 and 3.
Teaching aims and demands:
     1.Review the main sentences and useful expressons in this topic about robots,UFO and Internet.
     2.Main words and sentences:
switch on, had better do..., ask...for...
Teaching procedure:
Step 1 Review
       Ask the students to talk about robots, UFOs and Internet freely.
       For example, the first robot was invented in 1921. Robots can do a lot of dangerous and hard work instead of humans. They work without pay. I’m sure they can do some work faster and better than humans. But I don’t think they can take the place of us because we control them.
     I have never seen a UFO. I’m sure there are no UFOs. Until now, nobody seems to know UFOs, even scientists. People often mistake some manmade objects for UFOs. We can only get information about UFOs through books, movies, radios, the Internet and TV.
     The Internet can help us to do a lot of things. We can use the Internet for studying, shopping, listening to some music, watching movies, playing games, and even finding jobs. The Internet is interesting and useful. But we shouldn’t spend too much time on it. We must study well first.

Step 2 Presentation
     Present the new words. (The underlined words are the new words.)
     The teacher can show the new words with pictures or movies like this：
      T: If you want to use a computer, what do you do first?
      S: We must turn it on first.
      T: Yes, we should press the“On”switch. But if nothing happens after that, there must be something wrong with the computer. We should repair it.    
turn on = switch on
press
happen
repair

Step 3 Consolidation
     1. Finish 1.
turn on = switch on
press
happen
repair
useless
  2. Act out the dialog in 1 in pairs.
Step 4 Practice
      Make up new dialogs in pairs according to the one in 1. You can suppose there’s something wrong with your bike, telephone or TV.
Step 5 Project
     1. Read 2a and 2b to review and consolidate the important sentences and useful expressions in this topic.
     2. Finish 3 and 4.
     3. Sum up the main points in this lesson.
     4. Assign homework.