Lesson25Let's do an experiment教案+课件+习题

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名称 Lesson25Let's do an experiment教案+课件+习题
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版本资源 冀教版
科目 英语
更新时间 2018-11-06 10:02:29

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冀教版英语九年级上册Unit5第一课时教学设计
课题
Let’s Do an Experiment
单元
Unit 5
学科
英语
年级
九年级
学习
目标
知识与能力目标:
1.记忆单词: science, experiment, fill, prove, scientific, method.
短语和句型: do an experiment, fill…with, cover…with, turn…upside down, be (not) sure…
2. 掌握重点句型 : ①Then I turn the jar upside down and take my hand off the cardboard .
②That ’s called the scientific method.
过程与方法目标:
1.Improve the students’ ability of speaking, listening, reading and writing.
2.Do and express the experiment.
情感态度与价值观:
Students can enjoy the pleasure of literature.
重点
能够正确应用词汇: science, experiment, fill, prove, scientific, method.
掌握重点短语: do an experiment, fill…with, cover…with, turn…upside down, be (not) sure…
难点
1.能准确掌握句型①Then I turn the jar upside down and take my hand off the cardboard .
②That ’s called the scientific method.
2.能够确定定语从句的先行词和关系词。
教学过程
教学环节
教师活动
学生活动
设计意图
导入新课
Free talk:
Do you like science?
What kinds of experiments have you done in science class? 2·1·c·n·j·y
If you hold a jar that is filled with water upside down, what will happen?
自由讨论,畅所欲言回答老师给出的问题。
新课开始,教师通过问题互动的方式来引起学生的兴趣,以调动学习的积极性。
讲授新课
Presentation
Words:
Teacher shows the words we are going to learn with PPT: science, experiment, fill, prove, scientific, method and then explain the meanings and the usages of these words.
2. Give the students five minutes to remember the words. And then the teacher picks out one of them. Let students spell and read them.
3.Listen to the tape and answer the questions:
4. Check the answers.
5. Language points.

Practice:
1..Read the dialogue with the following questions.
2. Check the answers.
3. Read the experiment. Put the sentence in the correct order on page 67.
4. Check the answers.
Step 4. Consolidation
1. Group work: Try to do the experiment in this lesson yourself.
What happens when you use less water, more water, wet cardboard, or different kinds and sizes of jars?
2. Report your experiment and retell the process.
Summary the experiment. How to do an experiment.
4. Listen and sing a song, What is science.
Exercises
Homework:
Listen and read words and dialogue
2.Finish exercises of this lesson.
学生跟老师读单词。
用五分钟的时间记忆单词。
记忆单词,回答老师的问题。
学生在书上标注重点单词句型以及用法。
带着问题朗读材料。
学生朗读回答问题。
完成练习。
小组合作完成实验任务。
按照老师要求对实验进行汇报。
认真听,总结自己的欠缺。
教师以PPT的形式学习新单词并单个记忆,形象神东,方便学生快速记忆单词。
检验学生的掌握程度。
教师引导学生找出本课的重点短语和句型,进行讲解 , 扫清了学生理解文章的障碍。
让学生了解文章大意。
理解文章,锻炼逻辑能力。
培养学生的实践动手能力。
注重学生语言表达能力的培养,能流畅,准确表达。
总结本课知识,对学生表现作出点评,并总结实验所有注意事项。
情感升华。
课堂小结
本节课的教学目标一是掌握所学的新单词并能正确运用;二是能够听懂用情态动词should来讲述句子,并掌握询问“生病”的重要交际用语;三是让学生膳食均衡,远离恶习,关注健康,关爱生命。
板书
Lesson 1 What’s Wrong, Danny?
Main phrases:           Main sentences:
do an experiment
fill…with ①Then I turn the jar upside down and take my cover…with hand off the cardboard.
turn…upside down ②That’s called the scientific method
be (not) sure…
课件32张PPT。冀教版 九年级Unit 5 Lesson 25
Let' s Do an ExperimentFree talk(1)Do you like science?(2)What kinds of experiments have you done in
science class? (3)If you hold a jar that is filled with water
upside down, what will happen?Free talkInternetArtificial intelligence robot rocketsFree talkBiological experimentPhysical experiment Chemical experimentWords science [sa??ns] 变形:scientificadj.科学的n.科学e.g. : He decided to study science.
他决定研究科学。Wordsexperiment[?ksp?r?m?nt] n.实验e.g.:I am doing an experiment with my mom.
我正在和我的妈妈做实验。experiment为可数名词,意为“实验”;do experiment/ do an experiment意为“做实验”。 拓展:experiment作为动词,意为“做实验”。Wordsfill[f?l] vt.填满e.g. : Please fill the cup with water.
请把这个杯子装满水。Wordsprove [pruv]vt.证明e.g. : These facts are enough to prove that she is right.
这些事实足以证明她是对的。Wordsmethod[m?θ?d] n.方法e.g.: He succeeded with the aid of a completely new
method he discovered.
借助于自己发现的一种全新的方法,他获得了成功。WordsGame: Let' s have a guess.sciencemethodprovefillexperimentLet's do it!Danny, Jenny and Brian are in the lab.
Brian: Let' s do an experiment. I fill a jar with water. I cover the top with apiece of cardboard and hold it there.Then I turn the jar upside down and take my hand off the cardboard.Can you guess what will happen?
Danny: I think the floor will get wet.We should do this experiment outside, Brian.
Jenny: I think the cardboard will hold the water.Let's do it!Danny: I don' t think so.
Jenny: You think the water will pour out, Danny. I think the water will stay in the jar. Lets test which theory is correct.
Brian: Good idea, Jenny. That's called the scientific method.
Jenny: I am so sure of my theory that Brian can do the experiment over your head and I know you won't get wet.
Danny: Well, let' s try it!Let's do it!Brian: Are you ready, Danny?
Danny: No! Wait! (He puts on a raincoat and sits down.) Now, I think I' m ready.
Jenny: Brian, take your hand off the cardboard.
Danny: No!(Danny closes his eyes tightly, and Brian takes his hand off the cardboard.The water stays in the jar:)
Jenny: See, Danny!Danny: How is that possible?
Brian: The force of the air keeps the water in the jar. It is strong enough to hold the water.
Danny: Wow!
Brian: So what have we discovered?
Jenny: We have discovered that the air pressure helps the cardboard hold the water in the jar.Let's do it!Let's do it!Brian: Right. What do you conclude, Danny?
Danny: I conclude that air is stronger than I thought.2.Read the dialogue and answer the following questions.Let's do it!Because he think the floor will get wet.Do an experiment.No , he didn’t.(2) What will Brian do?(3) Does Danny have the same theory as Brian’s? (1)Why does Danny say they should do this experiment outside?Let's do it!I think…“我认为……”其后可接that引导的宾语从句。在使用时遵循“否主反从”的规律,即否定主句,反问从句。e.g.: I don’t think he is a good student.Let's do it!1. I think he is a good student.Let's do it!get wet意为:变湿get在本句中是系动词,意为“变得”后接形容词作表语Let's do it!2. I think the floor will get wet.Let's do it!3. be sure of 意为“确信;对……有把握”。
4. put on 意为“穿上”。 “动词+副词”构成的短语。 Let's do it! e.g.To be sure of the fact. 确信你说的是事实。 5. pour out:“倒出,使流出,涌出”。 
pour…into…:“把……倒进……”。Let's do it!6. It is+形容词+enough to do sth.”“做某事是足够……的”。
=too…to…=so…that…

Let's do it!e.g. : He is too old to go to school.7. conclude from意为“从……推断,从……中得出”。e.g. : What do you conclude from from them?
你能从中得到什么结论? (1)find为“找到,发现”,强调“找”的结果,也可指偶然发现、
碰到,其后可接名词、复合结构或that从句。www.21-cn-jy.com
(2)find out指“弄清楚,查明”。着重表示通过调查、分析、思考等
得出结果。
(3)discover意为“发现”,指发现已存在但不为人所知的事物。
(4)invent意为“发明”,指发明原来不存在的东西。Let's do it!8. find, find out, discover, inventLet's do it!(1)Where does Danny think they should do the experiment?

(2)What keeps the water in the jar?
Read the dialogue with the following questions.Let's do it!He thinks they should do the experiment outside.The force of the air.Let's do it!(3)Is Jenny sure of her theory? How do you know?
(4)Why does Danny put on his raincoat?
What does Danny conclude?
Read the dialogue with the following questions.Let's do it!No , she isn’t. Because he is so sure of his theory that brain can do it.In order to not get wet.
He concluded that air is stronger than he thought.Let's do it!Put a piece of cardboard over the jar
The jar of water is upside down , but the water stays in the jar. This is because air pressure pushes the cardboard onto the jar.
Fill the glass jar with water.
Turn the glass jar over quickly . Hold your hand on the cardboard for a few seconds.
Remove your hand from underneath the jar . What happens?
There is more air outside the jar than inside, so there is more air pressure outside than inside.Read the experiment. Put the sentence in the correct order on page 67.Let's do it!251346Pair workLet' s sing!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? It’s about matter—the universe.
Why do clouds go by? Why does a car stay on the road?
What keeps the birds in the sky? Why is there green all over a food.
That’s just science. Why can’t carry a heavy load?
That’s just science.Exercises一、用适当的介词填空。
1.The book is covered _______ a piece of red paper.
2.A strange thing happened______ him last week.
3.TV is another way ______ saying television.
4.Dave, please fill the jar ______water at first.
5.Have you read ______the earthquake in the newspaper?withtoofwithaboutExercises二、单项选择。
( )1.Let's do _____ experiment.
A.an B.a C.the D./
( )2.The streets were ______ cheering people.
A.full with B.filled with C.filled with D.filled of
( )3.The cardboard can _____ teh water in the jar.
A.close B.keep C.held D.kept
( )4.--What made you _____?
--The novel written by Lao She.
A.cry B.to cry C.crying D.cried
( )5.Let's _____ a party tonight!
A.has B.have C.having D.hadACBABSummaryWords:
science, experiment, fill, prove, scientific, method.
Phrases:
do an experiment, fill…with, cover…with, turn…upside down, be (not) sure… Homework2.Finish exercises of this lesson. 谢谢21世纪教育网(www.21cnjy.com) 中小学教育资源网站 有大把高质量资料?一线教师?一线教研员?
欢迎加入21世纪教育网教师合作团队!!月薪过万不是梦!!
详情请看:
https://www.21cnjy.com/help/help_extract.php
冀教版九年级上册Lesson5 第一课时习题
一、用适当的介词填空。
1.The box is covered _______a piece of red paper.
2.A strange thing happened_______ him last week.
3.TV is another way_______ saying television.
4.Dave, please fill the jar________ water at first.
5.Have you read________ the earthquake in the newspaper?
二、汉译英。
1.Science __________________
2.experiment ___________________
3.method ___________________
4.get wet ___________________
5.pour out ___________________
三、单项填空。
( )1.Let ’s does _____experiment.
A.an B. a C. the D./
( )2.The streets were_____ cheering people.
A. full with B. filled of C. filled with D. felled of
( )3.The cardboard can______ the water in the jar.
A. close B. keep C. held D. kept
( )4. —What made you?
—The novel written by Lao She.
A. cry B.to cry C. crying D. cried
( )5.Let ’s a party tonight!
A. has B. have C. having D. had
四、连词成句。
1.is, to, enough, hold, it, strong, water, the(?)
___________________________________________
2.did, physics, experiment, they, their, an, class, in(.)
____________________________________________
3.Let ’s,the,what,do,happens,experiment,see,and(.)
____________________________________________
4.fill,water,a,I,with,jar(.)
____________________________________________
5.called,method,the,that ’scientific(.)
____________________________________________
五、直击中考。
( )1.There is _____old piano in _____corner of the living room.
A. an; the B.an; 不填 C. a; the D. a; a
( )2.Tianjin is one of ____cities in China.
A. big Bigger C. the biggest D. the bigger
( )3.Mum asked me to____ for dinner.
A. lay the table B. go to sleep C. keep a diary D. take a vacation
( )4.In the picture, he sits_____me looking very happy.
A. beside B. among C. up D. through
( )5.—Tom feel off his bike and hurt his knee.
—_____.
A. Pretty good B. That’s too bad
C. That’s funny D. That’s a good idea.
答案
一、用适当的介词填空:
1. with 2.to 3. of 4. with 5. about
二、 汉译英:
1.科学
2.实验
3.方法
4.变湿
5.倒出,使流出,涌出
三、单项填空:
1-5 ACBAB
四、连词成句:
1.Is it strong enough to hold the water?
2.They did an experiment in their physics class.
3.Let ’s does the experiment and see what happens.
4.I fill a jar with water.
5.That’s called the scientific method.