Lesson 26 Keep the Candle Burning优秀教学实录

A teaching design 九年级冀教版Unit 5 look into science Lesson 26 keep the candle burning 戚氏初中 闫改兰

教材分析：本单元是九年级冀教版unit 5look into science的第二课。本课主围绕让蜡烛持续燃烧这一实验来学习有关实验的单词和短语，丰富学生的知识，激发学生学习英语的兴趣。通过用英语来描述实验过程和试验现象，掌握本课的单词、短语和重点句子，并提高学生听说读写的能力。

学情分析：对象是九年级的学生，拥有一定的听说读写能力和动手操作能力，同时他们也在物理课上学习了有关大气压强的知识，在lesson25 let’s do an experiment,已经学习了一个关于大气压强的实验，同学们也做了这个实验，很感兴趣，为学习26 课做好了很好的铺垫，但我们是农村学生，学生的听说读的能力很差，不愿意开口说英语，当然用英语描述物理实验的能力更差，需要老师不断地启发和鼓励他们张口说英语的能力。

设计理念：利用实物，或图片介绍、学习有关单词，然后边做实验，边用英语描述；先老师描述，学生听，然后带领大家一起用英语说实验过程；然后让学优生边做实验边用英语描述；最后知识产出环节让学生复述课文内容。训练时，既让学生自学又分组讨论；让学生在听中学，做中学，说中学，写中学，从而达到培养学生听说读写能力的教学目标。

教学目标: 知识目标：掌握6 个单词：holder ,shallow ,lighter ,match ,examine , oxygen ;7 个短语:use up , be made up of

,Put

in

,put

on

,put

over , fill

with ，keep….

doing

能力目标：在掌握本课单词短语和理解课文内容的基础上，让学生可以自己做实验，并用英语来描述本课的实验

情感目标：通过本课的学习，激发热爱科学的兴趣，培养学生热爱科学的精神

教学重点：

1 . words and useful expressions:

shallow,

holder , lighter,

match , examine , oxygen;

use up ,

be

made up of

，put

in , put

on ,

put

over , fill

with ，keep….

doing

2.语法：分数的表达；

教学难点：怎样用英语来描述让蜡烛持续燃烧的实验

教法：实验法，听说法，讲解法，练习法

学法：听说法，合作法，讨论法，复述法，练习法

教学资源：实验器材，多媒体, 录音机

教学过程：

Step1 lead in T:

What did we learn in lesson25? Ss: We learned and did an interesting experiment about the force of the air.(teacher helps them answer) T: Do you like doing science experiments?

Why or why not? Today we will do another interesting experiment about the force of the air. Do you like it? Step2 present 1. Show the experiment things to students and ask what it is one by one , then learn the new words. Try to explain the words in English. Make sure the

students can understand the meaning of the words 2. show the useful expressions on ppt learn the expressions ,then try to make up sentences with them. ask some volunteers to practice them Step4 .listen and exercise 1. Listen to the tape carefully and answer the questions: What do we need? What do we do ? 2. Then do NO.1, let’s do it! First do it by themselves, then teacher checks their answers

Step5.let’s do the experiment

Do the experiment and describe it in English

1. The teacher is describing it in English while she \he is doing the experiment. ask students to listen to him\her carefully. Then teacher and students describe it together 2. Ask one student to do the experiment, and the other student describe the experiment in English Step 6 .Explain and practise

Explain the language points 1.keep的用法

keep... burning 使……燃烧。

keep sth.(sb.)doing使某物(某人)保持做某一动作状态

The mother kept her son standing until he realized his mistake 2.use up:用光，耗尽。

I have used up all my money,

3. one-fifth五分之一。

分数的表达和用法

用英语表达分数时，分子前，分母后；分子基，分母序；若分子大于1时，则分母的序数词用复数形式。

For example: 1/3，one third，三分之一；1/5，one fifth，五分之一；3/4，three fourths，四分之三；2/5，two fifths，五分之二

当分数短语做主语时，谓语动词的单复数和它所修饰的名词的单复数保持一致。For example:

Three quarters of students are girls . Half of the water is used up now, we must save it

4.be made up of: 由

…….

组成

Each group is made up of six students step7.discuss

disscuss in groups and answer the questions: How do we do the experiment? What do you do ? What is happening? Step 8.retell

Ask a leader of one group to stand in front of the students and retell the experiment Step 9.homework 1.Write the experiment in your exercise book . 2.do the exercises in xue’an

3.preview

lesson 27

板书设计

Lesson26 Keep the Candle Burning Put…..over

把

…….

放在….. 上方

Put …...in

把

…….

放在

…….

里面

Put…..on

把

…….

放在……. 上面

Fill……with

用

……. 填满

use up

用完，用光

be made up of

由

……

组成

教学反思：上完本课，经过听课老师以及同课头老师的点评，有以下优点：

幻灯片简洁，本着为教学服务的目的；教学过程清晰，环节齐全，突出了重难点，利用不同的练习方式，突破了重难点知识；学生操练方式多样，既让学生在静中学，又在动中学；既在看中学，听中学，做中学；又在听中练，在做中说，在说中提，在提中升，从而培养和提高了学生听说

读写的英语综合能力和核心素养，较好地完成本课了教学任务。

不足之处是：由于时间短，只让学优生展示；让学生做实验和描述实验过程时，由于缺乏读的环节，导致有的学生说的不流利；以后教学当中要多在知识的输出环节动脑筋，要善于给学生搭梯子，慢慢过渡到retell环节.