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DNA－The Story of You
Lesson 29
Zhaocun Junior High School
Liu Xiya
Your DNA comes from your parents.
Where does your DNA come from?
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.
被深深影响
DNA 脱氧核糖核酸 blueprint n. 蓝图
general adj. 一般的 complex adj.复杂的
twin - twins n.双胞胎 repeat v. 重复,复述,背诵
pattern n. 模式，形式 identify v.确认，鉴别
related adj. 有关的，相关的
grandson n. 孙子，外孙
granddaughter n. 孙女，外孙女
instruction n.指示，说明
Review Words:
Listening: Listen to the tape ,then answer the questions.
What is DNA?
How is DNA?
1．What is a blueprint?
2．Which is more complex，building a living thing or
building a house?
3．Do some twins have the same DNA?
4. Is it possible to change your DNA?
5. Whose DNA is related to yours?
In general,A blueprint is a drawing that shows how to put a house together with many different parts.
Building a living thing.
Yes, they do.
Reading: Read and answer.