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repeat
pattern
more complex
identify
instruction
( ) 1 A blueprint shows where to put all the parts of the house.
( ) 2 You can know what size your feet are with DNA.
T
T
( ) 3 Every living thing has the same DNA.
( ) 4 Your DNA is different in every part of your body.
( ) 5 Your DNA is different from your parents’.
F
F
F
Listen to the tape and write T or F
Answer the questions
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 ?
Language points
1 in general 2 except for
3 be related to
4 not only… but also
1in 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。
例如： In general / Generally speaking, women cry more easily than men.
2 except for用于表示对整体的肯定和局部的否定。
例如： Smith is a good man, except for his bad temper. 史密斯除了脾气不好之外是个好人。