《DNA-The Story of You》Look into Science! PPT
第一部分內(nèi)容：Warming up
Do you and the students near you look the same? What is the same?
Think about it!
1. What do you know about DNA?
2. What can scientists do with DNA?
This is the shape of DNA. Do you think it’s magic?
“DNA” is short for deoxyribonucleic acid.
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DNA-The Story of YouPPT，第二部分內(nèi)容：While-reading
Read the lesson and answer the questions：
What is a blueprint?
It’s a drawing that shows how to put a house together with many different parts.
Which is more complex, building a living thing or building a house?
Building a living thing is far more complex than building a house.
Do some twins have the same DNA?
Yes, they are.
Is it possible to change your DNA?
In the future, scientists might be able to change my DNA.
Whose DNA is related to yours?
My parents and grandparents.
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DNA-The Story of YouPPT，第三部分內(nèi)容：Language points
1. But building a living thing is far more complex than building a house.
比較級(jí)前可以用much, even, still, far, a bit, a little, a lot 等詞加以修飾。
This unit is much easier than that one. 這個(gè)單元比那個(gè)單元容易得多。
2. own 的用法
1）adj. 自己的 （用在所有格后，加強(qiáng)語(yǔ)氣）
Now ask the same questions about your own teachers.
She makes all her own clothes.
2) vt. 有，擁有 其名詞形式為owner，意為主人，所有者。
— Who owns the bike?
—Jackie. He is the owner of it.
3. except for =apart from 除……以外，只是 表示從整體中排除一小部分，前后對(duì)比的東西不同類(lèi) 。except =but “除了”前后對(duì)比的東西同類(lèi)
常與all , every ,no,not, any等連用。besides 表示“除……之外，還有”，即包含后面提到的內(nèi)容。
eg:He is a good man except for hot temper.
I have said goodbye to all the teachers except Mr. Wang.
Besides Tom, five other boys also passed the exam.
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DNA-The Story of YouPPT，第四部分內(nèi)容：Practice
Fill in each blank with the proper word.
1. This is the __________(identify) hotel that we stayed in last year.
2. Your brothers are people _________(relate) to you.
3. Do you know who is the _________(own) of the house?
4. Your body uses this pattern _________ (build) itself.
5. You have your own DNA, but it repeats the patterns from your __________(parent) DNA.
6. Some health problems come from your family’s DNA. _________(science) can look for these problems in your DNA.
根據(jù)漢語(yǔ)意思完成句子，每空一詞：
1. 我們用藍(lán)圖建造房子。
We _______ a blueprint ______ _______ a house.
2. 除了窗子小外,這座房子很漂亮。
The house is beautiful ______ _____ the small windows.
3. 你的頭發(fā)和皮膚有同樣的DNA。
Your hair has ______ _______ _______ _____ your skin.
4. 她不但會(huì)唱歌，而且會(huì)跳舞。
She can _____ ______ sing ______ ________ dance.
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DNA-The Story of YouPPT，第五部分內(nèi)容：Homework
1. Write a passage about DNA, try to tell what it is, where it is from, what things you show your parents’DNA?
2. Preview Lesson 30.
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