Lesson 26 Keep the Candle Burning教学设计与反思

Lesson26: Keep the Candle Burning! 教学设计

冀教版

九年级

下花园中学

王文娟

张家口市下花园中学

九年级

英语

教学设计

课题

课型

new Lesson26: Keep

the

Candle

Burning 课时数

1 累计课时

1 教学目标

1. Learn the new words: match, light, burn, use up, shallow, candleholder, oxygen, one-fifth 2. Learn the important sentences: ①

Light the candle. ②

As the candle burns, it uses up oxygen in the air. ③

There is about one-fifth oxygen in the air, so the water rises and fills about one-fifth of the jar.

分数的表达法:口诀:分子基,分母序,分子>1,分母加s e.g. one-fifth; two-thirds Use the phrases and sentences correctly. 教学重点

教学难点

教法

学法

Listen, say, read and write. Listen, say, read and write. 教

学

过

程

教

学

案

导

案

教学手段

Setp1.Class opening 1.Revision: Which experiment did you learn in this unit? 2.Presentation Step 2. Reading Read the new words. Step 3. Experiment Watch the experiment. Sum up steps of experiment. Step 4. Watching watch the video and know more about the experiment. And think about

"what will happen?". Step 5. Explain and writing 1. light ①作动词:意思是点燃; ②作名词:意思是光,光线,灯; e.g.The light is too poor to read. There are two lights in our classroom. ③做形容词:意思是轻的,不重的;

e.g.This coat is light but very warm. 2. use up 意思是耗尽,耗费; e.g.We have used up the ink. 3. 分数的表达法:口诀:分子基,分母序,分子>1,分母加s e.g. one-fifth; two-thirds Step 6. Do exercises Let`s do an experiment. Fist find a _______and then put it in the ________.Where do we put the candleholder? Out it in the _______._________the dish ________full of water. After that,we can________the candle.Let the candle ________for two or three minutes.At last put the jar ________the candle.What can we see?As the candle burns,it ________up oxygen in the air.When the candle stop ________,it has used up all the oxygen.The water inside the jar goes________. Step 7. Sum up 1. Master the words and expressions. 2. Master the experiment. Step 8. Homework 板

书

设

计

1. When the candle stops burning, it has used up all the oxygen in the air. 当蜡烛停止燃烧时，它就用完了空气中所有的氧气了。

【用法】use up意思是“用完、用光”，这是“动词

+ 副词”短语。这类短语用名词作宾语时，名词可用在副词前，也可用在副词后；用代词作宾语时，代词则必须用在副词前。

【举例】I gave Li Ming a lot of pencils, but he has used them up already. 我给了李明很多铅笔，但他已经把它们都用完了。

2. Because about one fifth of the air is made up of oxygen, the water rises and fills about one fifth of the jar. 因为组成空气的成分大约五分之一是氧气，所以水会上升并且填充瓶子的大约五分之一。

【用法】短语be made up of意为“由……组成”，后加名词或代词作介词宾语。

【举例】This grade is made up of ten classes. 这个年级是由十个班组成的。

【用法】句中的one-fifth意思是“五分之一”，这是一个分数。分数的表达一般遵循以下规则：分子用基数词，分母用序数词；当分子大于一时，分母要用复数形式；并且其中的连字符号有时可以不要。

【举例】one-fourth 四分之一

three fifths 五分之三

本节课主要任务是让学生了解并学会该实验，在实验中探究并掌握知识。整体上效果良好，达到了师生互动和生生互动的课堂效果。在调动全班学生上还需进一步提高。

教学反思