Let’s Do an Experiment教学设计教案

2024年1月24日发(作者：国产小型车)

八年级下英语教案Unit4（课时31-40）

Lesson25: Let’s Do an Experiment!

? Step1：复习巩固、激情导入

复习：提问unit3重点词组和句型

导入：Do you like to do experiment? What experiment have you done?

? Step2：出示目标、明确任务

1. 牢记本课黑体词汇：science/experiment/fill/prove/scientific/method等；

2. 能分角色表演对话；

3. 背诵重点句子1-5，并灵活运用相关知识点。

? Step3：自主学习、合作探究

任务一：限时5分钟，熟读所有词汇，牢记黑体词汇

任务二：熟读对话，把握其意，画出不理解处，同桌之间交流

任务三：背诵重点句子，并自学知识点，画出不理解处，同桌之间交流

1. I fill a jar with water.

2. I turn the jar upside down.

3. I\'m sure the floor won\'t get wet.

4. We can prove who\'s right.

5. We\'ll do the experiment and observe what will happen.

? Step4：师生互动、展示提升

互动一：单词记忆比赛

互动二：对话熟读接力赛

互动三：知识点展示大比拼

? 知识点一：I fill a jar with water.

意为“ 用...装满... ”

be =be 意为 “充满...”

意为“ 填上...;填充...”

Eg: On hearing the news, her eyes are filled with tears.

They filled the hole with water.

Fill in the blanks.

? 知识点二： I turn the jar upside down.

Turn…upside down意为“把……翻转/倒过来”

upside down 意为“正面朝下”

right side up意为“正面朝上”

Eg: That picture is upside down.

You hold the book upside down.

? 知识点三：I\'m sure the floor won\'t get wet.

be sure （that）从句,意为“肯定……，确定……”主句的主语必须是人

否定形式是be not sure+疑问词引导的从句.

Eg: Tom is sure that he will win the game.

Tom is not sure whether he can win the game.

I\'m not sure when he\'ll come here.

? 知识点四：We can prove who\'s right.

prove是及物动词,意为“证明,证实”

常用于以下结构:prove sth.(to sb.);prove(to sb.);(to be)+adj/n.

Eg： The fact has proved the man\'s honesty to us all.

=The fact has proved to us all that the man is honest.

=The fact has proved the man (to be) honest.

prove也可以作不及物动词,意为吧“证明表明(自己)是...”后跟形容词或名词.

Eg： My theory will prove right some day.

During the trip,he proved a man with a strong will.

? 知识点五： We\'ll do the experiment and observe what will happen.

(1)observe是动词,意为 “观察”

observe sb. do sth.

observe sth.

用法同see/watch/hear等

Eg: I observed her dance.

When I passed by the grass,I observed him walking.

（2）happen vi 意为“发生”

【固定短语】sth happens to sb（无被动语态）

Happen to do sth

Eg: What has happened to you？

I happened to meet an old friend yesterday.

? Step5：巩固练习、检测验收

教学反思：