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1、Lesson 29: DNAThe Story of You,I. Learning aims:,The new words: DNA, blueprint, general, complex, twin, repeat, pattern, identify, related, grandson, granddaughter, instruction,II. Train the speaking and writing abilities.,New Words,DNA blueprint general complex twin repeat pattern identify related
2、grandson granddaughter instruction,Do you and the students near you look the same? What is the same?,Warming up,Zhang Liangying looks like her mother.,Identical twins are two children that grew from the same egg. They have identical DNA. Theyre clones!,Do you and the students near you look the same?
3、 What is the same? Are there any differences between you and them? What can scientists do with “DNA”?,Free Talk,Listening Task,Generally speaking, a _ is a drawing._ for identical twins, each living thing has its own unique DNA.,blueprint,Except,Where does your DNA come from? Your parents. Is your D
4、NA in every part of your body? Yes, it is.,Reading Task,Do you and the students near you look the same? Are there differences between you and them?What can scientists do with “DNA”?,Listen and Think,1. But building a living thing is far more complex than building a house.,Language points,比较级前可以用much
5、, even, still, far, a bit, a little, a lot 等词加以修饰。,This unit is much easier than that one. 这个单元比那个单元容易得多。,2. own 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 除以外，只是 He is a good man except
6、 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
7、War. I have a book relating to the Autumn Harvest Uprising.,Students discuss these with their partners, then say out in class.,Lets do it,Exercises,1. Everyone wrote a good poem _ her. (除了) 2. _ Tom, five other boys also passed the exam. (除了还有)3. _ identical twins, (除之外) each living thing has its ow
8、n unique DNA.,except,Besides,Except for,4. All the questions are easy _ the last one. (除了)5. There are many others _ me.(除了还有) 6. We all went to Beijing _ Tom, who has been there before.,except,besides,except,1. I can _ swim _ skate.(不但而且) 2. 它不仅能说汉语而且还会说英语。He can speak _.3. Not only you but also I
9、_ (be) a teacher.4. Not only I but also he _ (know) the answer to the question.,am,not only Chinese but also English,not only but also,knows,5. Neither they nor I _ good at singing. A. are B. be C. is D. am 6. Both my father and I _ in the country. A. enjoys living B. enjoy to live C. enjoys to live D. enjoy living,D,D,1. 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.,