2021学年Lesson 26 Keep the Candle Burning教学设计

这是一份2021学年Lesson 26 Keep the Candle Burning教学设计，共4页。


掌握文中重点短语和句型。
能够熟练记忆、使用match，use up等单词和短语。
Step 1：Warming up
What’s this？(It’s a candle.)Yes，it’s a burning candle. We will have an interesting class. Can yu guess what we will d in this class？There are sme things that may be used in an experiment. D yu want t knw what will happen？Tday we’ll learn Lessn 26：Keep the Candle Burning.
设计意图：利用带来的教具，凭着学生对科学强烈的求知欲和好奇心，学习本课的新词，并鼓励他们表述实验。
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Step 2：Presentatin
1.Watch，Say and Fill
(1)What d we need?
We need a candle，a candle hlder，a big glass jar，a shallw dish，sme water and a lighter.
(2)What d we d?
First，________ the candle ________ the candle hlder.
Then ________ the candle hlder ________ the dish.
Third ________ the dish ________ water.
Furth，________ the candle.
Fifth，________ the candle ________ fr tw minutes.
2.Imagine and Predict
If I put the jar ver the candle until the tp f the jar rests n the dish，what will happen?
I’m nt sure./I’m sure it will...
I think... Maybe...
3.D，Observe and Answer
Put the jar ver the candle carefully until the tp f the jar rests n the dish.
(The candle stps burning. The water rises up.)
4.Then d Exercises 1 and 2 n Page 69
设计意图：教师示范实验，同时描述实验过程，让学生熟悉实验流程，并让学生在听的过程中填出关键词，为下一步做实验做好基础，并讨论会发生什么。体现本单元主题Talking Abut Science。
Step 3：Listen，read and think
1.Why did the candle stp burning?
Because it has ________ the xygen in the air.(used up)
2.Why did the water rise?
Because the frce utside the jar is ________ than the frce inside the jar.(strnger)
3.Hw far did the water rise?
Because there is abut ________ xygen in the jar，s the water rises and fills abut ________ f the jar.(ne fifth，ne fifth)
Step 4：Prject
1.D the experiment in grups
Read abut the experiment in this lessn. With a grup f classmates，practice the experiment. D yur experiment in frnt f the class. Dn’t frget the fllwing things：
First，describe yur experiment.
Secnd，ask the class what they think will happen.
Third，d the experiment.
Finally，ask the class if the result is what they expected.
组长分配任务，一人写实验报告，一人做实验，其他人用英语描述实验过程，必须用英语描述，否则实验为失败，小组间比赛，实验成功且完成快的组，获得一颗星奖励。
2.Write the experiment reprt
Step 5：Explain the language ntes f the text t the class
1.Keep the candle burning！让蜡烛燃烧！
keep... burning 使……燃烧。keep sth.(sb.)ding使某物(某人)保持做某一动作状态。
2.use up用光，耗尽。表示完全，彻底。
3.ne­fifth五分之一。
分数的表达：
分数由分子及分母两部分构成。用英语表达时，分子用基数形式，分母用序数词形式。若分子为1时，则分母的序数词为单数形式；若分子大于1时，则分母的序数词用复数形式。
如：1/3，ne third，三分之一；1/5，ne fifth，五分之一；3/4，three furths，四分之三；2/5，tw fifths，五分之二
1．Jim ________all his mney t buy the cmputer.
A．fixed up B．used up
C．ate up D．Gt
2．—Have yu finished the wrk?
—Nt yet，but n matter hw hard it is，
we’ll keep________ until we finish it.
A．failed B．trying
C．tried D．failing
答案：1.B 2.B
完成请完成《 少年班》P20对应习题
本课时以问答形式与学生互动来导入新课，引出课时的中心—D yu like ding science experiments?这样既增长了学生关于一般疑问句的知识，又锻炼了学生的思考能力。
知识目标
单词
regret, examinatin, pain，wake up, get dressed, get
词组
，use up，ne­fifth
句型
Let the candle burn fr tw r three minutes.When the candle stps burning, it has used up all the xygen in the air.Because abut ne fifth f the air is made up f xygen, the water rises and fills abut ne fifth f the jar. Hw far des it rise?
技能目标
能听懂本课时的听力材料，能说出本课时的重要句型，能运用句式用英语谈论学习方法