《DNA-The Story of You》Look into Science! PPT下载
第一部分内容:This is the shape of DNA.
“DNA” is short for deoxyribonucleic acid.
The two girls are twins. Maybe they have the identical DNA.
Fang Zuming looks like his father—Cheng Long.
New Words
DNA blueprint
general complex
twin repeat
pattern identify
related grandson
granddaughter instruction
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DNA-The Story of YouPPT,第二部分内容:Read the lesson and answer the questions.
(1)What is a blueprint?
A blueprint is a drawing that shows how to put a house together with many different parts.
(2)Which is more complex,building a living thing or building a house?
Building a living thing is far more complex than building a house.
(3)Do some twins have the same DNA?
Yes,they do.
(4)Is it possible to change your DNA?
Yes,it is.In the future,scientists might be able to change our DNA.
(5)Whose DNA is related to yours?
People who are related to me.For example,my parents and grandparents.
... ... ...
DNA-The Story of YouPPT,第三部分内容:Main phrases:
·in general
·except for
·be related to
·billions of
Main sentences:
·What can scientists do with DNA?
·But building a living thing is far more complex than building a house.
·Except for some twins,every living thing has its own unique DNA.
·Some health problems can be caused by problems in your DNA.
·In the future,scientists might be able to change your DNA.
·There are copies of your DNA in every part of your body.
·You have your own unique DNA,but it repeats patterns from your parents’ DNA.
·Your DNA has billions of instructions that explain why you are the way you are.
·It’s one of the most amazing things on the earth!
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DNA-The Story of YouPPT,第四部分内容:教材解读
1.What can scientists do with DNA?
do with为固定短语,意为“处理”,强调对象,与疑问词what连用。
【拓展】deal with也意为“对待,处理”,侧重处理的方式、方法,与疑问词how连用。
2.In general,a blueprint is a drawing that shows how to put a house together with many different parts.
◆in general意为“一般而言,概括说来”,通常置于句首,也可以用generally speaking来表示。
◆different为形容词,意为“不同的”,常用于以下结构中:be different from与……不同;be different in…在……上不同。
3.But building a living thing is far more complex than building a house.
◆living为形容词,意为“活着的,活的”,常作定语。
◆far为副词,意为“非常,远远”,用来修饰形容词和副词的比较级,表示程度。
【拓展】同样用法的词还有even“甚至”;rather“相当”;much“……得多”;a little/bit“有点”;a lot“……得多”等等。
4.Except for some twins,every living thing has its own unique DNA.
◆except for意为“除……之外,要不是由于”,它要求排除的是不同类的。
【辨析】except for,except,besides,but
(1)except for意为“除了”,表示对主体的肯定和局部的否定,用于不同类的事物间。
(2)except可用作介词,意为“除了……之外”,表示同类事物间的排除关系。
(3)besides可用作介词,意为“除……之外”,表示同类事物间的叠加关系。
(4)but可用作介词,意为“除……之外”,常与no,all,every,each,none,nobody等词连用,有时可与except互换。
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DNA-The Story of YouPPT,第五部分内容:Practice
Ⅰ.Fill in the blanks with the phrases in the box.
in general,except for,not only…but also,related to,even if,the same…as…
1.Your homework is quite good__________a few spelling mistakes.
2.__________the young__________the old like pop music.
3.Kate’s hair is__________colour__________her sister’s.
4.__________ ,women live longer than men.
5.__________ many difficulties remain,we can overcome them.
6.Is wealth__________ happiness?
Ⅱ.Complete the passage with the sentences in the box.
Changing DNA
Do you know DNA can be changed?Have you ever seen a pig with a dog’s body?Of course not!Pigs and dogs can’t have babies together.________But now, scientists can do it.Scientists can take DNA from one kind of animal and put it into another kind of animal. They can design new plants by combining the DNA of other plants.________Some scientists are worried.They say we need to know more about DNA before we start changing it.________But what if the plants are bad for humans,too?
A.Their DNA can’t combine.
B.We can make plants that are bad for pests.
C.They can even combine the DNA of a plant and an animal.
... ... ...
DNA-The Story of YouPPT,第六部分内容:Homework
1.Finish off the exercises in the activity book.
2.Preview Lesson 30.
《单元主题写作》Look into Science! PPT 第一部分内容:话题分析 本单元的话题为谈论科学。通过本单元的学习,学生要能够用英语表达出科技对人们日常生活产生的影响。写作此话题时多..
《单元语法聚焦》Look into Science! PPT 第一部分内容:教材典句 1.A blueprint is a drawing that shows how to put a house together with many different parts. 蓝图就是展示如..
《单元基础知识过关》Look into Science! PPT 第一部分内容:基础知识清单 重点单词 1.方法;办法 ________ 2.力量;迫使;强迫 ________ 3.火柴;相称;相配 ________ 4.当然;..
发布于:2020-05-25 10:31:45
0
九年级上册
《DNA-The Story of You》Look into Science! PPT教学课件
第一部分内容:课前自主预习
1. 一般的;普遍的________→(adv.)________
2.重复;复述;背诵________
3.孙子;外孙________
4.孙女;外孙女____________
5.blueprint ________
6.instruction ________→(v.)________
7. twin ___________________
8.pattern_____________
9.identify _____________
10.related _____________
11. complex ________
1. 一般而言;通常________________
2.除……之外________________
3.不仅……而且……________________
4. 数以百万计的________________
5. 例如________________
6.be related to________________
7. in the future ________________
8.the same…as________________
1.一般而言,蓝图就是展示如何将许多不同的部分组建成一栋房子的图纸。
________ ________, a blueprint is a drawing________
________ ________ ________ put a house together with many different parts.
2.对大自然来说,改变生物的DNA以使它们适应它们生存的世界要花费数百万年的时间。
It takes millions of years for nature to change the DNA in
living things to make them fit the world ________ ________ ________.
3.所有的这些事情在你出生之前就被你的DNA强烈地影响着!
All these things________ ________ ________ by your DNA before you are born!
4.除了一些双胞胎之外,每一个生物都有自己独特的DNA。
________ ________ some twins, every living thing has its own unique DNA.
5.从你的DNA中,科学家们不仅能够鉴别你,而且能鉴别与你相关的人。
From your DNA, scientists can identify not only you, but also
people ________ ________ ________ ________ ________.
根据课文内容,判断正(T)误(F)。
( )1. DNA is the blueprint of life.
( )2. Building a house is more complex than building a living thing.
( )3. Scientists can change our DNA now.
( )4. Your hair and your fingers have different DNA.
( )5. From your DNA, scientists can identify people who are related to you.
... ... ...
DNA-The Story of YouPPT,第二部分内容:课堂互动探究
词汇点睛
1 general adj. 一般的;普遍的
[观察] In general, a blueprint is a drawing that shows how to put a house together with many different parts.一般而言,蓝图就是展示如何将许多不同的部分组建成一栋房子的图纸。
There is a general interest in sports.对于运动,(人们)有普遍的兴趣。
[探究] general用作________词,指普遍存在于大多数人或事物中,有“较少例外的”含义。常用短语是in general,意为“_____________”。
2 repeat v. 重复;复述;背诵
[观察] You have your own unique DNA, but it repeats patterns from your parents' DNA.
你有你自己独特的DNA,但是它重复了你父母DNA的模式。
The teacher asked him to repeat what she had said.
老师要求他重复她所讲的话。
[探究] repeat可作及物动词,也可作不及物动词。repeat意为“重复;重说;重做”时, 其后不能再跟 again。repeat sth.=say/do sth. ________。
句型透视
1 It takes millions of years for nature to change the DNA in living things to make them fit the world they live in.
对大自然来说,改变生物的DNA以使它们适应它们生存的世界要花费数百万年的时间。
[探究] (1)句中“they live in”为定语从句,前面省略了关系词that或which。
(2)millions of 意为“________________”。
[拓展] (1)关系代词在定语从句中作主语时,一般不能省略;只有做宾语或表语时才可省略。
Is there anything (that) you wanted here?
这儿有你想要的东西吗?
China is not the country (that) it was.
中国已不是过去的中国了。
(2)hundred, thousand, million, billion表示具体数字时,用单数;表示概数时,后面要加s, 并且与of连用。
2 Except for some twins, every living thing has its own unique
DNA. 除了一些双胞胎之外,每一个生物都有自己独特的DNA。
Everyone except Li Ming passed the English exam.
除了李明之外,大家都通过了这次英语考试。
He is a good man except for his hot temper.
他是个好人,只是脾气暴躁而已。
We've been to the Great Wall besides Li Lei.
除了李雷之外,我们也都去过长城。
There is nothing but a bed in the room.
房间里除了一张床什么也没有。
... ... ...
《单元主题写作》Look into Science! PPT 第一部分内容:话题分析 本单元的话题为谈论科学。通过本单元的学习,学生要能够用英语表达出科技对人们日常生活产生的影响。写作此话题时多..
《单元语法聚焦》Look into Science! PPT 第一部分内容:教材典句 1.A blueprint is a drawing that shows how to put a house together with many different parts. 蓝图就是展示如..
《单元基础知识过关》Look into Science! PPT 第一部分内容:基础知识清单 重点单词 1.方法;办法 ________ 2.力量;迫使;强迫 ________ 3.火柴;相称;相配 ________ 4.当然;..
发布于:2020-05-24 19:16:15
0
九年级上册
《DNA-The Story of You》Look into Science! PPT课件下载
第一部分内容:Warming up
Do you and the students near you look the same? What is the same?
Are there any differences between you and your friends?
Zhang Liangying looks like her mother.
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DNA-The Story of YouPPT,第二部分内容:Discussion
Do you look like your father or mother? Do you know why?
Do you know DNA?
Are your fingerprints the same as your mother's?
New words
blueprint n. 蓝图
repeat v. 重复
general adj. 一般的;普遍的
complex adj.复杂的
twin n. 双胞胎
identify v. 鉴别;确认
grandson n. (外)孙
granddaughter n. (外)孙女
DNA 脱氧核糖核酸
instruction n. 说明
pattern n. 模式
related adj. 有关的
... ... ...
DNA-The Story of YouPPT,第三部分内容:Language notes
1. Except for identical twins, each living thing has its own unique DAN. 除了每个双胞胎之外,每个生物都有他唯一的DNA。
1)except for除……以外,只是,排除的不是同类,表示对主要部分的肯定和对局部的否定。
Your article is quite good except for several spelling mistakes. 你的文章很好,只是有几处拼写错误。
except, besides, but 和except for 的区别
except “除……之外”,排除后面的人或物,而且排除的内容和主语往往是同一类。如:We went to see our teacher yesterday except Li Ming. 昨天除了李明以外我们都去看我们的老师了(李明没去)。
besides “除……之外,还有”,包括该词后面的人或物。如:We all went to see a film besides Li Ming. 除李明以外我们也都去看电影了(李明去了)。
but““除……之外”,一般用于否定句中,表示”只有……“,如:There is nothing but a pen in the pencil case.铅笔盒里除了一支钢笔之外什么也没有。
except for “除……之外”,后面排除的部分和主语不是同一类人或物.如 :The movie was good except for the ending.这部电影除了结局之外都很好。
2. From your DNA, scientists can identify not only you but also people related to you. 在你的DNA中,科学家们不但能鉴别你,而且也能鉴别和你有关系的人。
1) not only …but also…不但……而且……,连接两个相同的成分,也可连接两个分句。连接两个并列主语时,谓语动词和临近主语保持一致;连列两个并列分句时,not only置于句首,通常用倒装结构,也就是说,把not only引导的分句中的助动词或be提到主语前面。
He likes not only English but also math.
他不仅喜欢英语,而且喜欢数学。
Not only you but also I am a teacher. 不仅你而且我也是一名老师。
Not only does he work hard, but also he is very clever.
他不仅工作认真,而且很聪明。
2)relate to涉及,有关
The story related to the Second World War.
故事讲的是第二次世界大战的事情。
I have a book relating to the Autumn Harvest Uprising. 我有一本关于秋收起义的书。
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DNA-The Story of YouPPT,第四部分内容:Practice
I. 根据句意及所给汉语提示写出单词。
1. She_________(认出) that the man was her uncle.
2. The engineer drew a________(蓝图) to build the road.
3. The two boys are________(双胞胎). They look the same.
4. Read the ___________ (说明) first before you use the machine.
5. Please _______ (复述) the words after the tape.
《单元主题写作》Look into Science! PPT 第一部分内容:话题分析 本单元的话题为谈论科学。通过本单元的学习,学生要能够用英语表达出科技对人们日常生活产生的影响。写作此话题时多..
《单元语法聚焦》Look into Science! PPT 第一部分内容:教材典句 1.A blueprint is a drawing that shows how to put a house together with many different parts. 蓝图就是展示如..
《单元基础知识过关》Look into Science! PPT 第一部分内容:基础知识清单 重点单词 1.方法;办法 ________ 2.力量;迫使;强迫 ________ 3.火柴;相称;相配 ________ 4.当然;..
发布于:2020-08-03 11:55:18
0
九年级上册
《DNA-The Story of You》Look into Science! PPT免费课件
第一部分内容:词汇听写
同学们,上一课学习的单词你们都掌握了吗?现在大家来检验一下,点击下面的音频开始听写吧!
What do you know about DNA?
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DNA-The Story of YouPPT,第二部分内容:课文呈现
THINK ABOUT IT
·What do you know about DNA?
·What can scientists do with❶ DNA?
When you build a house,you use a blueprint. What’s a blueprint?In general❷,a blueprint is a drawing that shows how to put a house together with many different parts. DNA is the blueprint of life.❸
But building a living thing is far more complex than building a house. It takes millions of years for nature to change the DNA in living things to make them fit the world they live in.
How tall are you?What colour are your eyes?What size are your feet? All these things are strongly influenced by your DNA before you are born!
DNA is fantastic!
·Except for❹ some twins,every living thing has its own unique DNA.
... ... ...
DNA-The Story of YouPPT,第三部分内容:知识讲解
do with 处理
do with与deal with都可表示“处理”。do with常与what连用,而deal with常与how连用。
eg:I don’t know what they do with the problem.
我不知道他们如何处理这个问题。
in general 通常;大体上
eg:In general,their cars are very reliable.
通常,他们的小汽车是很可靠的。
generally adv.一般地;广泛地;普遍地。generally speaking“大体而言;概括来说”。
eg:Generally speaking,your idea is right.
总的来说,你的想法是正确的。
________,it is not very bad to work in this factory.
A.General speak B.Speaking generally
C.In general D.In generally
【点拨】句意:通常来说,在这家工厂工作还是不错的。
In general通常来说。故选C。
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DNA-The Story of YouPPT,第四部分内容:Let's Do It !
1.Read the lesson and answer the questions.
1.What is a blueprint?
A blueprint is a drawing that shows how to put a house together with many different parts.
2.Which is more complex,building a living thing or building a house?
Building a living thing.
3.Do some twins have the same DNA?
Yes, they do.
4.Is it possible to change your DNA?
Yes. In the future, scientists might be able to change our DNA.
5.Whose DNA is related to yours?
My parents’ and my grandparents’.
2.Fill in the blanks with the phrases in the box.
in general except for not only…but also
related to even if the same…as
1.Your homework is quite good __________a few spelling mistakes.
2.________the young ________the old like pop music.
3.Kate’s hair is________ colour ______her sister’s.
4._________,women live longer than men.
5.________ many difficulties remain,we can overcome them.
6.Is wealth _________ happiness?
... ... ...
DNA-The Story of YouPPT,第五部分内容:课堂练习
一、根据句意及首字母提示完成单词
1.Lucy and Lily are ______.They look the same.
2.In ________,women do it more easily than men.
3.It’s important for you to ________the text.
4.Mike has a granddaughter and a ________.
5.Before you take this medicine, you must read the _____________.
二、单项选择
6.What did the police ________ that accident?
A.deal in B.deal with
C.do with D.do about
7.My article is good ________some spelling mistakes.
A.except B.except for
C.Beside D.besides
8.From your DNA,scientists can identify you and the people ________to you.
A.related B.relates
C.relating D.relate
9.(中考·六盘水) Not only you but also he _____ the secret.
A.knows B.know
C.have known D.to know
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DNA-The Story of YouPPT,第六部分内容:课堂小结
本节课主要学习了以下重点内容:
(1)重点单词:sometimes, by等。
(2)重点短语:do with, in general, except for, the same… as, not only…but also…, one of…等。
1.熟记本课时的词汇
2.完成本课时的课后作业
《单元主题写作》Look into Science! PPT 第一部分内容:话题分析 本单元的话题为谈论科学。通过本单元的学习,学生要能够用英语表达出科技对人们日常生活产生的影响。写作此话题时多..
《单元语法聚焦》Look into Science! PPT 第一部分内容:教材典句 1.A blueprint is a drawing that shows how to put a house together with many different parts. 蓝图就是展示如..
《单元基础知识过关》Look into Science! PPT 第一部分内容:基础知识清单 重点单词 1.方法;办法 ________ 2.力量;迫使;强迫 ________ 3.火柴;相称;相配 ________ 4.当然;..
发布于:2020-05-24 18:18:49
0
九年级上册
《DNA-The Story of You》Look into Science! PPT免费下载
第一部分内容:New Words
1. DNA 脱氧核糖核酸
2. blueprint n. 蓝图
3. general adj. 一般的;普通的
e.g. He teaches them general knowledge and life skills.
他教给他们一般性知识和生活技能。
4. complex adj. 复杂的
5. twin n. 双胞胎之一;孪生儿之一
6. repeat v. 重复;复述;背诵
e.g. Will you please repeat the word?
请你重复一遍这句话好吗?
7. pattern n. 模式;形式
8. identify v. 确认;鉴别
9. related adj. 有关的;相关的
10. grandson n. 孙子;外孙
e.g. A grandma is kissing her grandson.
一位奶奶在亲吻她的孙子。
... ... ...
DNA-The Story of YouPPT,第二部分内容:Think about it
What do you know about DNA?
What can scientists do with DNA?
Read the lesson and answer the questions.
1.What is a blueprint?
A blueprint is a drawing that shows how to put a house together with / using many different parts.
2. Which is more complex, building a living thing or building a house?
Building a living thing is far more complex than building a house.
3. Do some twins have the same DNA?
Yes, some twins have the same DNA.
4. Is it possible to change your DNA?
Yes, it is. In the future, scientists might be able to change our DNA.
5. Whose DNA is related to yours?
People who are related to you. For example, your parents and grandparents.
... ... ...
DNA-The Story of YouPPT,第三部分内容:Language points
1. In general, a blueprint is a drawing that shows how to put a house together with many different parts.
一般而言,蓝图就是一幅图纸,它显示一座房子的构造。
in general意思是“一般而言;概括说来(通常置于句首)”。也可以用
generally speaking来表示。
e.g. In general / Generally speaking, women cry more easily than men.
一般而言,女人比男人容易哭。
2. But building a living thing is far more complex than building a house.
但创造一个生物比盖房子要复杂得多。
far用来修饰形容词和副词的比较级,这样的词语还有much, still, even,
no, a little, a bit, a lot, rather, any等。
e.g. The room is a bit larger than that one.
这个房间比那个稍大一点。
He works still harder than ever.
他比以往更加努力学习了。
Matters are a lot better than ever before.
情况远远比以往好。
Can he jump any higher?
他能跳得更高一些吗?
Lesson One is much easier than Lesson Two.
第一课比第二课容易得多。
Tom looks even younger than before.
汤姆看上去甚至比以前还年轻。
This train runs much faster than that one.
这辆火车比那辆快得多。
... ... ...
DNA-The Story of YouPPT,第四部分内容:Fill in the blanks with the phrases in the box.
in general except for
not only … but also related to
even if the same … as
1. Your homework is quite good _________ a few spelling mistakes.
2. ________ the young _______ the old like pop music.
3. Kate’s hair is _________ colour ____ her sister’s.
4. __________, women live longer than men.
5. _______ many difficulties remain, we can overcome them.
6. Is wealth _________ happiness?
... ... ...
DNA-The Story of YouPPT,第五部分内容:Homework
Is it a good idea to change the DNA of the food we eat?
Some people say doing this makes our food better.
Others think it’s too dangerous.
Search the Internet for information and write down your ideas.
《单元主题写作》Look into Science! PPT 第一部分内容:话题分析 本单元的话题为谈论科学。通过本单元的学习,学生要能够用英语表达出科技对人们日常生活产生的影响。写作此话题时多..
《单元语法聚焦》Look into Science! PPT 第一部分内容:教材典句 1.A blueprint is a drawing that shows how to put a house together with many different parts. 蓝图就是展示如..
《单元基础知识过关》Look into Science! PPT 第一部分内容:基础知识清单 重点单词 1.方法;办法 ________ 2.力量;迫使;强迫 ________ 3.火柴;相称;相配 ________ 4.当然;..
发布于:2020-05-25 13:27:51
0
九年级上册
《Keep the Candle Burning》Look into Science! PPT教学课件
第一部分内容:Think About It !
Do you think science is interesting?
Why or why not?
Name one or two famous Chinese scientists.
What do you know about them?
... ... ...
Keep the Candle BurningPPT,第二部分内容:Main phrases:
·use up
·be made up of
Main sentences:
·Science is so interesting!
·Fill the dish half full with water.
·Light the candle.
·Carefully put the jar over the candle until the top of the jar rests on the dish.
·The water inside the jar rises.
·Because about one fifth of the air is made up of oxygen,the water rises and fills about one fifth of the jar.
... ... ...
Keep the Candle BurningPPT,第三部分内容:教材解读
1.Science is so interesting!
◆so为副词,意为“这样,如此”,用于修饰形容词或副词的原级,表示程度。常见用法如下:
(1)“so+形容词+a/an+单数名词”相当于“such a/an+形容词+单数名词”。
(2)so后可接many,much,few和little来表示名词的数量。
(3)so…that…意为“如此……以至于……”,构成结果状语从句。
◆interesting为形容词,意为“有趣的”,表示事物本身含有令人感兴趣的因素,可作表语或定语,用于说明物。
【拓展】interested也为形容词,意为“感兴趣的”,表示人对物的感受,在句中可作表语,常用于固定短语be/get interested in“对……感兴趣”。
2.Fill the dish half full with water.
half full with water为形容词短语,在句中作状语,表伴随状态。
3.Light the candle.
light为动词,意为“点燃”,可构成短语light up“点(烟),照亮”,宾语为代词时,应放在light与up之间。light的过去式和过去分词为lighted/lit,lighted/lit。
【拓展】(1)light作名词时,意为“灯,光”。
(2)light作形容词时,意为“轻的,浅的”。
4.Carefully put the jar over the candle until the top of the jar rests on the dish.
carefully为副词,意为“细心地,认真地”,其形容词形式为careful,意为“小心的”。care可用作动词,意为“关心”,也可用作名词,意为“照顾”。
5.When the candle stops burning,it has used up all the oxygen in the air.
use up意为“用完,用光”,为“动词+副词”构成的短语。这类短语用名词作宾语时,名词可用在副词前,也可放在副词后;用代词作宾语时,代词则必须放在副词前,该短语相当于run out of…,可用于被动语态。
... ... ...
Keep the Candle BurningPPT,第四部分内容:Do the experiment in groups.
Read about the experiment in this lesson.With a group of classmates,practice the experiment.Do your experiment in front of the class.Don’t forget the following things:
·First,describe your experiment.
·Second,ask the class what they think will happen.
·Third,do the experiment.
·Finally,ask the class if the result is what they expected.
... ... ...
Keep the Candle BurningPPT,第五部分内容:课堂练习
Ⅰ.选词(组)填空
1.Don’t_________(use up/push up)all of the ink.Leave some for me.
2.The medical team_________(is made of/is made up of)five experienced doctors.
3.Please fill the hole_________(with/in)sand and water.
4.They didn’t realize their mistake_________(until/ as)we told them.
5.My brother wasn’t_________(strong enough/ enough strong)to lift the box.
Ⅱ.单项填空
1.I fill a jar_________water.And I cover the top_________a piece of cardboard.
A.with,with B.use,use
C.with,use D.use,with
2.Let’s do the experiment and see_________will happen.
A.whatB.whenC.howD.where
3.I will_________them the theory.
A.sayB.speakC.talkD.tell
4.The water in the river_________after it rained.
A.riseB.raiseC.raisedD.rose
5.You needn’t keep the candle_________.It’s bright enough here.
A.burnB.to burnC.burningD.burned
... ... ...
Keep the Candle BurningPPT,第六部分内容:Homework
1.Finish off the exercises in the activity book.
2.Preview Lesson 27.
《单元主题写作》Look into Science! PPT 第一部分内容:话题分析 本单元的话题为谈论科学。通过本单元的学习,学生要能够用英语表达出科技对人们日常生活产生的影响。写作此话题时多..
《单元语法聚焦》Look into Science! PPT 第一部分内容:教材典句 1.A blueprint is a drawing that shows how to put a house together with many different parts. 蓝图就是展示如..
《单元基础知识过关》Look into Science! PPT 第一部分内容:基础知识清单 重点单词 1.方法;办法 ________ 2.力量;迫使;强迫 ________ 3.火柴;相称;相配 ________ 4.当然;..
发布于:2020-05-25 08:50:39
0
九年级上册
《Keep the Candle Burning》Look into Science! PPT课件下载
第一部分内容:课前自主预习
1. 火柴;相称;相配________
2.holder______________→(v.)________
3.shallow ________
4. lighter ____________→(v.) ________
5.examine ________→(n.)__________
6.oxygen ________
1. 用光;用完________________
2.由……组成________________
3.两三分钟________________
4.how far ________________
5. one fifth________________
1.倒半碟水。
________ the dish half full ________ water.
2. 让蜡烛燃烧两三分钟。
________the candle ________for two or three minutes.
3.当蜡烛停止燃烧时,它(蜡烛燃烧)已经用完了空气中所有的氧气。
When the candle ________ ________, it has ________ ________ all the oxygen in the air.
4.因为大约空气的五分之一是由氧气构成的,所以水上升并填满了大约广口瓶的五分之一。
Because about one fifth of the air ________ ________
________ of oxygen, the water rises and fills about one fifth of the jar.
5. 你能做这个实验吗?
Can you ________ ________ ________?
... ... ...
Keep the Candle BurningPPT,第二部分内容:课堂互动探究
词汇点睛
match n. 火柴 v. 相称;相配
[观察] He quickly struck a match to light his cigarette.
他迅速地擦着一根火柴,点燃了他的香烟。
[探究] match作“火柴”讲时,是________名词。搭配:一根火柴________________; 一盒火柴a box of matches。
[拓展] (1)match用作名词,还可译为“比赛”。
I like watching football matches on TV.
我喜欢通过电视看足球比赛。
(2)match还可用作动词,意为“相称;相配”。常用结构:match (with) sb./sth. (in sth.)(在某方面)和某人/某物相匹配。
Your scarf doesn't match (with) your sweater.
=Your scarf and sweater don't match. 你的围巾和毛衣不搭配。
The picture matches the story.这张图片与这个故事相匹配。
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(蜡烛燃烧)已经用完了空气中所有的氧气。
[探究] (1)stop doing sth.意为“_____________”。
(2)use up 意为“______________”, 相当于run out of。
[拓展] stop to do sth.意为“停止正在做的事情去做另一件事情”。
stop sb. from doing sth. 意为“阻止某人做某事”。
2 Because about one fifth of the air is made up of oxygen, the water rises and fills about one fifth of the jar. 因为大约空气的五分之一是由氧气构成的,所以水上升并填满了大约广口瓶的五分之一。
[探究] (1)be made up of 意为“____________”。
(2)one fifth 意为“____________”。分数的表达方式:分子用________词,分母用________词,当分子大于1时,分母加s。
[记忆口诀]分子基,分母序;分子大于1,分母加s。
[拓展]分数短语作主语时,谓语动词的单复数取决于分数后的名词的单复数。
Two thirds of the students are boys in our class.
我们班三分之二的学生是男生。
... ... ...
《单元主题写作》Look into Science! PPT 第一部分内容:话题分析 本单元的话题为谈论科学。通过本单元的学习,学生要能够用英语表达出科技对人们日常生活产生的影响。写作此话题时多..
《单元语法聚焦》Look into Science! PPT 第一部分内容:教材典句 1.A blueprint is a drawing that shows how to put a house together with many different parts. 蓝图就是展示如..
《单元基础知识过关》Look into Science! PPT 第一部分内容:基础知识清单 重点单词 1.方法;办法 ________ 2.力量;迫使;强迫 ________ 3.火柴;相称;相配 ________ 4.当然;..
发布于:2020-05-24 22:45:12
0
九年级上册
《Keep the Candle Burning》Look into Science! PPT免费课件
第一部分内容:Think About It!
1.Do you like doing science experiments? Why or why not?
2.What will happen if you put a jar upside down over a burning candle?
... ... ...
Keep the Candle BurningPPT,第二部分内容:New words
match n. 火柴
holder n. 支撑者
shallow adj. 浅的
lighter n. 打火机
examine v. 检查
oxygen n. 氧气
... ... ...
Keep the Candle BurningPPT,第三部分内容:Listening Task:
true or false.
( ) 1. The experiment needs a candle and matches.
( ) 2. We need to put water in a bowl.
( ) 3. The experiment proves the air has one fifth of oxygen.
... ... ...
Keep the Candle BurningPPT,第四部分内容:Language Points
1. Light the candle. 点亮蜡烛。
light此处用作动词,意为“点亮”。还可作名词,意为“光;灯”。作形容词,意为“轻的,浅的,明亮的”。
I want a room with good light. 我要一个采光好的房间。(名词)
My sweater is light blue. 我的毛衣是浅蓝色的。(形容词)
He sat down and lit a cigarette. 他坐下点了一只香烟。(动词)
2. Because about one fifth of the air is made up of oxygen, the water rises and fills about one fifth of the jar. 因为大约五分之一的空气是由氧气组成的,水上升填充了大约广口瓶的五分之一。
1) one fifth意为“五分之一”。英语中表示分数时,分子用基数词,分母用序数词;分子与分母间的连字符可加可不加。若分子大于1,分母则加-s。
Two thirds of the apples are red. 三分之二的苹果是红色的。
2) be made up of意为“由……组成”,of后可接人也可接物,指某物或组织的结构成分。
The club is made up of twelve girls. 这个俱乐部是由12个女孩组成的。
... ... ...
Keep the Candle BurningPPT,第五部分内容:Practice
根据句意及提示补全单词。
1. Please put the candle in the candle h______.
2. The bowl is too s______ to fill too much water.
3. How many ________ (火柴) are there in the box?
4. You must _______ (检查) your homework after you finish it.
《单元主题写作》Look into Science! PPT 第一部分内容:话题分析 本单元的话题为谈论科学。通过本单元的学习,学生要能够用英语表达出科技对人们日常生活产生的影响。写作此话题时多..
《单元语法聚焦》Look into Science! PPT 第一部分内容:教材典句 1.A blueprint is a drawing that shows how to put a house together with many different parts. 蓝图就是展示如..
《单元基础知识过关》Look into Science! PPT 第一部分内容:基础知识清单 重点单词 1.方法;办法 ________ 2.力量;迫使;强迫 ________ 3.火柴;相称;相配 ________ 4.当然;..
发布于:2020-05-25 17:45:22
0
九年级上册
《Keep the Candle Burning》Look into Science! PPT免费下载
第一部分内容:词汇听写
同学们,上一课学习的单词你们都掌握了吗?现在大家来检验一下,点击下面的音频开始听写吧!
Do you like doing science experiments?
Why or why not?
... ... ...
Keep the Candle BurningPPT,第二部分内容:课堂导入
THINK ABOUT IT
·Do you like doing science experiments? Why or why not?
·What will happen if you put a jar upside down over a burning candle?
Can you see the candle holder in this picture?
The candle is pink. The candle holder is grey.
The candle holder is“holding” the candle!
What do you do?
1.Put the candle in the candle holder.
2.Put the candle holder on the dish.
3.Fill the dish half❸ full with water.
4.Light❹ the candle.
5.Let the candle burn for two or three minutes.
6.Carefully put the jar over the candle until❺ the top of the jar rests on the dish.
7.Examine the water in the jar. What can you see?
... ... ...
Keep the Candle BurningPPT,第三部分内容:知识讲解
keep /kiːp/ v.保持
eg:You should keep the room clean.
你应该保持房间清洁。
keep的用法:
keep+宾语+形容词,意为“使……保持某种状态”。
You can’t sneeze and keep your eyes open at the same time.
你不能在打喷嚏的同时让你的眼睛睁着。
keep sb. from doing sth. 阻止
某人做某事,相当于“stop sb.from doing sth.”。
We should keep the children from swimming alone in the sea.
我们应该阻止孩子们单独在海里游泳。
keep (on) doing sth.
继续,重复做某事。
Keep smiling!
保持微笑!
match/mætʃ/ n.火柴,比赛 v.相称,相配
eg:We need to light a match.
我们需要点一根火柴。
They beat us last time,but we hope to win the next match.
上次他们打败了我们,但我们希望赢得下次的比赛。
The picture matches the story.
这幅图和故事相配。
match作名词时,为可数名词,复数为matches。
eg:Don’t strike matches if you smell gas.
如果你闻到煤气味,就不要划火柴。
... ... ...
Keep the Candle BurningPPT,第四部分内容:Let's Do It !
1.Read the lesson and fill in the blanks.
Let’s do the experiment together! Put the candle in the candle holder. Put the candle holder on the dish. Fill the dish half full with water. Light the candle with a________ or a lighter. What can you see? The candle is burning. ________the candle burn for two or three minutes. Then carefully put the jar over it until the top of the jar rests on the dish. As the candle burns,it ________the oxygen in the air.
When the candle stops________,it has used up all the oxygen in the air. The water inside the jar ________ and fills about ________ of the jar. This is because about one fifth of the air is made up of oxygen.
2.Circle the correct words to complete the sentences.
1.Don’t (use up /push up) all of the ink. Leave some for me.
2.The medical team (is made of / is made up of) five experienced doctors.
3.Please fill the hole (with /in) sand and water.
4.They didn’t realize their mistake (until /as) we told them.
5.My brother wasn’t (strong enough/enough strong) to lift the box.
... ... ...
Keep the Candle BurningPPT,第五部分内容:课堂练习
一、根据汉语提示完成句子
1.Please pass me a ________ (浅的) dish.
2.I need some ________ (火柴) to light the candles.
3.There is onefifth ________ (氧气) in the air.
4.After finishing all your work,you should ________(检查) it carefully.
5.We have __________ (用完) our salt.
二、单项选择
6.Jim ________all his money to buy the computer.
A.fixed up B.used up
C.ate up D.Got
7.—Have you finished the work?
—Not yet,but no matter how hard it is,we’ll keep________ until we finish it.
A.failed B.trying
C.tried D.failing
... ... ...
Keep the Candle BurningPPT,第六部分内容:课堂小结
本节课主要学习了以下重点内容:
(1)重点单词:keep,match,half,light,until,as, stop等。
(2)重点短语:use up, how far, one fifth等。
1.熟记本课时的词汇
2.完成本课时的课后作业
《单元主题写作》Look into Science! PPT 第一部分内容:话题分析 本单元的话题为谈论科学。通过本单元的学习,学生要能够用英语表达出科技对人们日常生活产生的影响。写作此话题时多..
《单元语法聚焦》Look into Science! PPT 第一部分内容:教材典句 1.A blueprint is a drawing that shows how to put a house together with many different parts. 蓝图就是展示如..
《单元基础知识过关》Look into Science! PPT 第一部分内容:基础知识清单 重点单词 1.方法;办法 ________ 2.力量;迫使;强迫 ________ 3.火柴;相称;相配 ________ 4.当然;..
发布于:2020-05-25 00:01:59
0
九年级上册
《Keep the Candle Burning》Look into Science! PPT优质课件
第一部分内容:Warming up
Do you like doing science experiments?
Why or why not?
What will happen if you put a jar upside down over a burning candle?
... ... ...
Keep the Candle BurningPPT,第二部分内容:New Words
1. holder n. 支托物;持有者
2. shallow adj. 浅的
3. lighter n. 打火机;点火器
4. examine v. 检查
5. oxygen n. 氧气
6. match n. 火柴 v. 相称;相配
match作动词时,既可以作及物动词,也可以作不及物动词,意为“相称;相配”。
e.g. a packet of cigarettes and a box of matches.
一包香烟和一盒火柴
... ... ...
Keep the Candle BurningPPT,第三部分内容:Let's do it!
1. Read the lesson and fill in the blanks.
Let’s do the experiment together! Put the candle in the candle holder. Put the candle holder on the dish. Fill the dish half full with water. Light the candle with a ______ or a lighter.
What can you see? The candle is burning. ___ the candle burn for two or three minutes. Then carefully put the jar over it until the top of the jar rests on the dish. As the candle burns, it _____ the oxygen in the air. When the candle stops ________, it has used up all the oxygen in the air.
The water inside the jar _____ and fills about ________ of the jar. This is because about one fifth of the air is made up of oxygen.
2. Circle the correct words to complete the sentences.
1. Don’t (use up / push up) all of the ink. Leave some for me.
2. The medical team (is made of / is made up of) five experienced doctors.
3. Please fill the hole (with / in) sand and water.
... ... ...
Keep the Candle BurningPPT,第四部分内容:PROJECT
SCIENCE? THAT’S INTERESTING!
Read about the experiment in this lesson. With a group of classmates, practice the experiment. Do your experiment in front of the class. Don’t forget the following things:
● First, describe your experiment.
● Second, ask the class what they think will happen.
● Third, do the experiment.
● Finally, ask the class if the result is what they expected.
... ... ...
Keep the Candle BurningPPT,第五部分内容:Language Points
1. Fill the dish half full with water.
倒半碟水。
half full with water是形容词短语,
在句中作状语,表伴随状态。
2. When the candle stops burning, it has
used up all the oxygen in the air.
当蜡烛停止燃烧时,它已经耗光了空气中的氧气。
use up 是固定短语,意为“用光、耗尽”。
其中的up是副词,意为“完、光、尽”,常与动词搭配使用。
e.g. He has used up all his energy.
他已筋疲力尽。
3. How far does the water rise?
水面上升了多少?
far在本句中表示“深(的程度)”。
e.g. They walked far into the forest.
他们走进森林深处。
Don’t work far into the night.
不要工作到深夜。
... ... ...
Keep the Candle BurningPPT,第六部分内容:Homework
Write a short passage that explains how the Lava in Cup experiment works.
What will happen if you mix oil and water and then add salt to the mixture?
《单元主题写作》Look into Science! PPT 第一部分内容:话题分析 本单元的话题为谈论科学。通过本单元的学习,学生要能够用英语表达出科技对人们日常生活产生的影响。写作此话题时多..
《单元语法聚焦》Look into Science! PPT 第一部分内容:教材典句 1.A blueprint is a drawing that shows how to put a house together with many different parts. 蓝图就是展示如..
《单元基础知识过关》Look into Science! PPT 第一部分内容:基础知识清单 重点单词 1.方法;办法 ________ 2.力量;迫使;强迫 ________ 3.火柴;相称;相配 ________ 4.当然;..
发布于:2020-05-25 16:28:54
0
九年级上册