general_2
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1Determination of Organic Emission of Non-metallic materials from
vehicles Interior VDA 277
Contents
1. General
2. Test preparations
3. Testing sets and conditions
4. Attempt realization
5. Calibration
6. Evaluation
1. General
1.1 Purposes
According to this test method, the organic emission from non-metallic materials is
determined with direct or indirect influence for the passenger's cell of automobiles stand.
It measure the emission potential of a material, the sum of all release values of the
emitted substances with gaschromatograph and detection with a Flame ionization detector.
The test operated by means of steam space analysis (Head Space technology) at
temperature of 120ºC.
1.2 Requirements
The accompanying sample, the respective requirements as well as special method is of
the suitable specification to take drawing or the like.
Unit 5 General Revision 2
Task5-task6教学设计
Teaching aims:
1、通过听说读写多种形式复习食物,饮料和动物名称
2、通过三个场景复习小学阶段出现的重点句型:would you
like …? Have some… , Can I have …,what are these/those?及其回答。
3、通过创设不同情境,让学生进行合作学习,培养学生合作意识和语言表达能力。
Main and difficult points:
1、熟练的使用本课句型进行交流。
2、掌握本课单词,巩固已学过的有关食物,饮料和动物的单词。
Teaching aids:图片、多媒体设备
Teaching procedure:
一、Revision
a、free talk。活跃课堂,调动学生语言表达兴趣。
b、复习学过的动物名称。
c、出示儿童节图片提出问题: What would you like to do on
Children’s Day?
二、Presentation
a、教师出示自己的travel plan想学生介绍自己的假期安排,引导学生说我 I’d like to go with you .
b、教师利用多媒体出示farm场景,介绍:this is a big farm .
there are a lot of animals in it.抛出问题“听录音,将单词填入横线上,完成对话。然后分角色朗读对话” 。
c、听录音然后核对答案 ,生生合作,分角色朗读对话。
d.出示Picnic场景让学生讨论野餐吃什么,给出图片复习食物和饮料的相关单词。
e.分组操练,设计自己组的野餐计划。
f.出示马戏团场景,带学生观看马戏表演。引导学生说出动物名称。
三、Practice
教师出示图片设计travel plan,让学生小组讨论每组的旅游计划。
A.分组讨论。
六年级英语下册Unit4GeneralRevision1(第2课时)教案人教精通版(三起)
第二课时
Teaching Aims:
1. 能够听、说、读、写句型:Where did you go on your holiday? I went to
Xinjiang.
2. 能够听懂Let’s try部分的录音并完成练习。
3. 能够理解、说唱歌谣“Where did you go on your holiday?”。
4. 会使用英汉字典查新词。
Teaching Importance and Difficulties:
1. 本课时的教学重点是句型:Where did you go on your holiday? I went to
Xinjiang.
2. 本课时的教学难点是在实际情景中正确运用所学对话。
Teaching Medias:
Teacher:录音机及磁带;Let’s learn部分的单词卡片;调查表格;几张地名卡片;几张照片;英汉字典。
Teaching Procedures:
Ⅰ.Warm-up
1. 教师与学生的日常会话。
2. 复习上一课时新课呈现部分所学的歌谣。
Ⅱ.Preview
1. 教师放A Let’s learn 部分的录音,学生跟读并拼读动词短语。
2.“打擂台”游戏
请五名学生到教室前面,教师任意抽取一张短语卡片,让五名学生根据卡片上的内容造句,如:I learned Chinese at school. 不能正确造句的学生即被淘汰出局。然后教师出示另一张卡片,留在台上的学生继续比赛。能最后留在台上的学生成为擂主。
Ⅲ.Presentation and Practise Let’s try
1. 学生听Let’s try部分的录音,完成练习。
2. 教师提问:What do people in Xinjiang like doing? 引导学生回答:They like
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