Lesson 26 Keep the Candle Burning第一课时教学设计

2018—2019学年度第一学期公开课教案

讲课教师：张庆文

1.

Instruct students to learn the text by themselves and know about the steps and reason of the experiment.

2.

Practice doing some exercises in class.

四．Teaching procedure.

Step 1. Greeting Lesson 26: Keep the Candle Burning 一.

Teaching Contents. 1.

Mastery words

and phrases :

match

light

burn

use up

shallow

holder

candle holder

oxygen

one fifth

be made up of 2.

The key sentences: (1)

Fill the dish half full with water. 装（倒）半盘子水。

(2)

Carefully

put the jar over the candle until the top of the jar rests on the dish. 小心地将广口瓶罩在蜡烛的正上方，直到广口瓶的瓶口接触到盘子。

(3)

How far does the water rise? 水面上升了多少？

(4)

Because about one fifth of the air is made up of oxygen, the water rises and fills about one fifth of the jar.

因为空气的五分之一是由氧组成的，所以水上升达到了瓶子的五分之一处。

二．Teaching important points

1. Have students master the key words and phrases in this lesson. 2. Have students understand the key sentences in this lesson. 3. 分数表示法。

4. Understand the importance of experiments. 三．Teaching difficult points. Step 2. Lead in T: Today we’ll start lesson 26. The title is “Keep the Candle Burning”. Do you know the meaning? In this lesson we will learn about a science experiment. Let’s discuss the Think About It questions first.

(Talk freely)

1. Do you like dong science experiments? Why or Why not? 2. What will happen if you put a jar upside down over a burning candle? Step 3. Presentation

Show the new words on the screen. Teach Ss to read these words. The students follow the teacher three times. Then introduce the words to Ss. Let students read them one by one. Step 4.Reading

1.

Read the text aloud first. Then have Ss scan the text silently and finish off

Let’s Do It! No.1 independently. 2. Discuss and check the answers in class. Step 5. Deal with language points.

1.

Show the language points on the screen one by one.

2.

Teacher explains the language points to Ss. 3.

Have Ss write them down in their notebooks. Step6. Discuss and answer

1.

Why does the candle stop burning? 2.

Why does the water rise? 3.

How far does the water rise? Why? Step 7. Practice 1.

Have Ss do some exercises in class. The exercises will be shown on the screen. 2.

Check and discuss the answers as a class. Step 8. Summary

T: In this lesson, we have learnt some new words and key sentences. Also we have learnt how to do this experiment. If you have time, please do it in groups after class.

Step 9. Homework 1.

Complete Let’s Do It! No.2 after class. 2.

Do this experiment in groups of four. 3.

Preview lesson 27.

说课稿

一、

说教材

本课是九年级新教材第五单元第二课（lesson 26）。本单元的话题是走近科学，教材在编排上选取了实验介绍和自然科普的文章，其目的是借助英语语言知识的学习来普及科学知识，培养中学生关心科学、热爱科学的态度，并在学习过程中培养学生英语学习的兴趣和信心。本课是一个实验介绍，趣味性强，学生很感兴趣，知识点不难。学生通过自主学习就可以掌握语言知识点，获取如何做实验的信息，完成本课教学目标。

二、

说教法

首先利用多媒体课件教学，直接导入本课话题, 通过师生互动交谈使学生思绪快速进入课堂，调动学生们的积极性。其次，教师以PPT的形式呈现本课中出现的生词,领着学生们朗读并记忆,为下面的课文学习做好充分准备。第三、鉴于课文容量和难度有限，决定采用学生朗读、精读、自主学习，重点词、句教师加以点拨的方式展开教学，突出重点、突破难点。最后通过练习检验学习效果，完成本课教学任务。

三、说学法

1、要求学生课前做好复习、新课预习，做到单词会读，词义明白，扫除学习障碍。

2、课上调动学生集中精力，专心投入，记好学习笔记；鼓励学生课堂积极参与，敢于发言。

3、通过课堂练习来检查落实学习任务，提高学习效率。把动手操作实验留为课后作业，培养学生动手实验的能力和科学精神，进而达成学习目标。

2018.11.22