冀教版九年级上册英语课件unit5Lesson29DNATheStoryofYou共23张.ppt
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Lesson 29Unit 5 Look into Science 5Lesson 29 DNA--The Story of You 学学习习目目标标objectivesThe new words:DNA, blueprint, general, complex, twin, repeat, pattern, identify, related, grandson, granddaughter, instruction DNA blueprintgeneral complextwin repeatpattern identifyrelated grandsongranddaughter instructionNew Words Do you and the students near you look the same? What is the same? Warming upLead in 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 thinkit' ' smagic?“DNA” is short for deoxyribonucleic acid. The two girls are twins . Maybe they have the identical DNA. [identical（adj) ---identify (v.)] Why?Fang Zuming looks like his father —Cheng Long. Listening Task?Generally speaking, a ________ is a drawing.?______ for identical twins, each living thing has its own unique DNA.blueprintExcept While-readingRead the lesson and 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? 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?It ' s 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 DNA.My parents and grandparents. 1. But building a living thing is far more complex than building a house.Language points比较级前可以用much, even, still, far, a bit, a little, a lot 等词加以修饰。
2. own 的用法的用法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Who owns the bike? 3. except for 除除……以外，只是以外，只是He is a good man except for hot temper. Your article is quite good except for several spelling mistakes. 4. not only ... but also ... 不但……而且……连接两个相同的成分，也可以连接两个分句当接两个主语时，谓语动词和后面主语保持一致e.g. He likes not only English but also math. Not only you but also I am a teacher. 5. relate to 涉及；有关e.g. The story related to the Second World War. I have a book relating to the Autumn Post-readingFree TalkIs it a good idea to change the DNA of the food we eat? WritingWrite down your ideas…… PracticeFill 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.identicalrelatedownerto build 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.parents'Scientists 根据汉语意思完成句子，每空一词：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 DNAYour hair has ______ _______ _______ _____ your skin.useto buildexcept forthe same DNA asnot onlybut also HomeworkHomework1. 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. 。
