冀教版九年级上册英语课件:unit5 Lesson 29 DNA--The Story of You(共23张PPT).ppt
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1、Lesson 29Unit 5 Look into Science5Lesson 29 DNA-The Story of You学习目标objectivesThe new words:DNA,blueprint,general,complex,twin,repeat,pattern,identify,related,grandson,granddaughter,instruction Train the speaking and writing abilities.DNA blueprint general complex twin repeat pattern identify relate
2、d grandson granddaughter instructionNew WordsDo you and the students near you look the same?What is the same?Warming upLead inThink 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 its magic?“DNA”is short for deoxyribonucleic acid.The two
3、girls are twins.Maybe they have the identical DNA.identical(adj)-identify(v.)Why?Fang Zuming looks like his fatherCheng Long.Listening TaskGenerally speaking,a _ is a drawing._ for identical twins,each living thing has its own unique DNA.blueprintExceptWhile-readingRead the lesson and answer the que
4、stions: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?1.What is a blueprint?2.Which is more complex,building a living thing or building a house?3.Do some t
5、wins have the same DNA?Its a drawing that shows how to put a house together with many different parts.Building a living thing is far more complex than building a house.Yes,they are.4.Is it possible to change your DNA?5.Whose DNA is related to yours?In the future,scientists might be able to change my
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