冀教版九年级英语Lesson29DNA—TheStoryofYou.ppt

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1、Zhang Liangying looks like her mother.,the two children are twins,They have same DNA.,Lesson 29:DNAThe Story of You,北营中学 马小维,New Words,DNA blueprint general complex twin repeat pattern identify related grandson granddaughter instruction,预习检测：,英汉互译1.一般而言 _2.except for _3.Not onlybut also _4.与有关 _5.即使

2、，纵然 _6.the same as _,in general,even if,除之外,不仅而且,be related to,与相同,Read 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

3、?,Where does your DNA come from?Your parents.Is your DNA in every part of your body?Yes,it is.,Reading Task,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。,这个单元比那个单元容易得多。This unit is _ _ _ that one.,合作探究

4、,议一议：,much easier than,2.except for 除以外，只是 Your article is quite good except for several spelling mistakes.辨析：except 与 except for（1）except 表示“除去，不包括”强调所排除的不包括在内，一般表示同类之间的关系。（2）except for用于表示对主要部分的肯定和对局部的否定，表示整体很好，除了有一些瑕疵。知识运用：(1).He is a good man,_ his bad temper(脾气)(2).Everyone is here _ Danny,he i

5、s ill in the hospital,except for,except,3.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，谓语动词遵循就近原则。即与靠近的主语的单复数保持一致。e.g.He likes not only English but also math.Not only you but also I am a teacher.讨论：1.不仅你而且他也必须离开 _ _ you _ _ he_ _ leave.2._ _ Tom _ _Mary _(说)English.,Not only,but also,has to,No

6、t only,but also,speaks,4.be related to 与相关 e.g.Is wealth（财富）related to happiness?知识运用：the two boys _ _ _ the car accident.5.one of+形容词最高级+可数名词复数+最之一 e.g.Its one of the most amazing things on the earth.活学活用：他是我们班最高的男孩之一。He is_ _ _ _ _ in our class.,are related to,one of the tallest boys,Lets do it1.A

7、ll the questions are easy _ the last one.(除了)2.There are many others _ me.(除了还有)3.We had a good time _ the weather.除了天公不作美之外，我们玩的很愉快。4.I can _ swim _ skate.(不但而且）5.Not only I but also he _(know)the answer to the question.,except,besides,except for,not only,but also,knows,达标测评根据汉语提示完成句子1.大体上讲，人们都不喜欢被

8、捉弄。_ _，people dont like to be made fun of.2.心脏病的发作可能与他去年的车祸有关。The heart attack could _ _ _ his car crash last year.3.这道物理题比那道数学题要复杂的多。The physics problem is _ _ _ than that math problem.4.我有我自己独特的DNA吗？Do I have _ _ _ DNA?5.她是我们学校最受欢迎的老师之一。She is _ _ _ _ _ _in our school.,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.,