Unit 5 Lesson 25 Let's Do an Experiment! 教案 冀教版英语九年级全册

Unit 5 Lesson 25
教学目标
1.掌握单词:correct.method.force
2.接触单词:experiment. jar, upside, pour, scientific, raincoat, pressure, conclude
3.短语:turn…upside down, pour out, scientific method, take...off
核心素养
实践创新
1.劳动意识：掌握本课所学的单词和英语表达;
2.技术运用：能用英语描述实验的过程。
教学重点
掌握本课所学的单词和英语表达。
教学难点
能用英语描述实验的过程。
教学过程
一、导入新课
Sing along
What Is Science
What is science
Can you explain
Please make it easy for my brain.
It’s about making observations.
Why do onions make me cry
Why do clouds go by
What keeps the birds in the sky
That’s just science.
What is science
Can you explain
Please make it easy for my brain.
It’s about matter——the universe.
Why does a car stay on the road
Why is there green all over a toad
Why can’t I carry a heavy load
That’s just science.
二、新课讲解
Think about it
Do you like to do experiments
What experiments have you done
Words and expressions
ex/pe/ri/ment n. 实验；试验
jar n.广口瓶
up/side n.上部，上边
pour v.倒出；倾倒
co/rre/ct adj.正确的，恰当的
scien/ti/fic adj.科学的
me/thod n.方法；办法
rain/coat n.雨衣
for/ce n.力量
v.迫使；强迫
pre/ssure n.压力；压强；挤压
con/clu/de v.得出结论；断定
Sum up
1.本课所学的重要表达
turn...upside down 把……翻转；倒过来
pour out 涌出
scientific method 科学方法
take...off 把……拿开
2.如何做实验
三、语言点
Language points
1.Then I turn the jar upside down and take my hand off the cardboard.
turn…upside down=turn over“把……翻转/倒过来”
take…off…“使……离开/脱离……”或“把……从……拿开”。
take off意为“摘掉,(飞机)起飞,脱掉”。
2.I think the floor will get wet.
get wet“变湿”。
get在本句中为系动词,意为“变得……”,后接形容词作表语。
3.We should do this experiment outside,Brian.
experiment可数名词,“实验”。
do experiments/do an experiment“做实验”
experiment 动词,“做实验,进行试验”。
4.You think the water will pour out,Danny.
pour out“倒出,使流出,涌出”
pour…into…意为“把……倒进……”。
5.I am so sure of my theory that Brian can do the experiment over your head and I know you won’t get wet.
be sure of “对……有把握”
eg:I am sure of this answer.
6.He puts on a raincoat and sits down.
put on“穿上”(代词放中间)。
7.It is strong enough to hold the water.
“It is+形容词+enough to do sth.”
“做某事是足够……的”
8.What do you conclude,Danny
conclude为动词,“断定,推断出”,其后可接由that 引导的宾语从句。
conclude from意为“从……推断,从……中得出”。
Challenge yourself!
Let’s do another interesting experiment
带电的报纸
材料：1支铅笔；1张报纸。
步骤： 1. 展开报纸，把报纸平铺在墙上。
2. 用铅笔的侧面迅速地在报纸上摩擦几下后，会发生什么呢？
（ 电：Electricity 产生：produce 摩擦：rub）
四、摘要
Science can change our life. I hope all of you can love science, and I hope some of you can become great scientists like Albert Einstein and Marie Curie.
五、作业
1.Recite the text.
2.Preview Unit 5-Lesson 26.