《DNA-The Story of You》Look into Science! PPT

描述

《DNA-The Story of You》Look into Science! PPT

第一部分内容：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.

... ... ...

DNA-The Story of YouPPT，第二部分内容：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.

... ... ...

DNA-The Story of YouPPT，第三部分内容：Language points

1. But building a living thing is far more complex than building a house.

比较级前可以用much, even, still, far, a bit, a little, a lot 等词加以修饰。

This unit is much easier than that one. 这个单元比那个单元容易得多。

2. own 的用法

1）adj. 自己的 （用在所有格后，加强语气）

Now ask the same questions about your own teachers.

She makes all her own clothes.

2) vt. 有，拥有 其名词形式为owner，意为主人，所有者。

— Who owns the bike?

—Jackie. He is the owner of it.

3. except for =apart from 除……以外，只是 表示从整体中排除一小部分，前后对比的东西不同类 。except =but “除了”前后对比的东西同类

常与all , every ,no,not, any等连用。besides 表示“除……之外，还有”，即包含后面提到的内容。

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.

... ... ...

DNA-The Story of YouPPT，第四部分内容：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.

根据汉语意思完成句子，每空一词：

1. 我们用蓝图建造房子。

We _______ a blueprint ______ _______ a house.

2. 除了窗子小外,这座房子很漂亮。

The house is beautiful ______ _____ the small windows.

3. 你的头发和皮肤有同样的DNA。

Your hair has ______ _______ _______ _____ your skin.

4. 她不但会唱歌，而且会跳舞。

She can _____ ______ sing ______ ________ dance.

... ... ...

DNA-The Story of YouPPT，第五部分内容：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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更新时间: 2024-07-10

所属频道：冀教版九年级英语上册

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