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

《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.

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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?

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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

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