冀教版九年级英语Unit 5 Lesson 29 《The Study of Living》共23张PPT).ppt

1、英语冀教版九年级上Lesson 29DNA-The Story of YouWang ShubaoNO.19 Middle SchoolChinas Most Famous“Farmer”Professor Sir Ian Wilmut DNA deoxyribonucleic aciddi:ksi,raibunju:kli:ikWhat do you know about DNA?What can scientists do with DNA?N H C ETask 1 Skim and AnswerTask 1 Skim and Answer（略读（略读 跳读）跳读）DNA is the

2、blueprint of life.Whats the topic sentence of this passage?Task 2 Scan,answer and translate1.What is a blueprint?A blueprint is a drawing that shows how to put a house together with many different parts.2.Which is more complex,building a living thing or building a house?Building a living thing.3.Doe

3、s every living thing have its own unique DNA?No,except for some twins.4.Whose DNA is related to you?People who are related to us.For example,our parents,grandparents,grandsons and granddaughters.5.Your DNA has billions of instructions that explain why you are the way you are.(翻译)bluprntkmpleks junik

4、 twn nstrk()n DNA(fantastic)Read aloud and then use the key words todescribe DNA.DNA(fantastic)uniqueExcept for some twins,every living thing has its own unique DNA.1.Your homework is quite good except for a few spelling mistakes.2.Everyone is here except Tom.DNA(fantastic)health uniqueSome health p

5、roblems can be caused by problems in your DNA.DNA(fantastic)changehealth uniqueIn the future,scientists might be able to change your DNA.DNA(fantastic)uniquehealth changecopyThere are copies of your DNA in every part of yourbody.DNA(fantastic)healthuniquerelatedchangecopyFrom your DNA,scientists can

6、 identify not only you,but also people who are related to you.The matter relates to Jack.Jack _ the matter.Jack is the person_ the matter.Not only I but also Tom _(enjoy)fishing.is related torelated toenjoys1.Your composition is quite good _ a few spelling mistakes.2._ the young _ the old like pop m

7、usic.3.You can have any of the cakes _ this one,for its for Cindy.4._,women live longer than men.5.He is the person _ to my family.6.I dont think wealth _ happinessFill in the blanks with the phrases in the box.in general，except for，not only but alsorelated to，except，be related toexcept forNot onlyb

8、ut alsoexceptIn generalrelated tois related toOne student reads the sentence,the other student tells us true or false as soon as possible.1.Your hair has the same DNA as your blood.2.Twins have the same DNA.3.Everyone has his own unique DNA.4.You have the same DNA as your parents.5.Its impossible to

9、 change your DNA.6.Some problems in your DNA can cause some health problems.7.You have part of your grandparents DNA.Is it a good idea to change the DNA of the food we eat?good/badkinddeliciousproductionfeed pricehealthynatural or notbe good forbe bad formore kinds of more delicious than beforeincre

10、ase the productionfeed more peoplecheaperunnaturaldo harm to Is it a good idea to change the DNA of the food we eat?On one hand,it is good to change the DNA of the food we eat.First,(kind/delicious)Second,(production/feed)Third,(price)On the other hand,it also has some disadvantages.(not natural/do

11、harm to).In my opinion,Is it good or bad to clone people?Why?1.Scientific discoveries are making our lives better and better.2.Everything in the world are amazing.Love science,love animals,love all the people around you,love nature.3.Study hard and make a contribution to our society.As the saying goes,Roses given,fragrance in hand.11.Write acomposition.Topic:Is it good or bad to change the DNA of food?23Doing the tasksHomeworkFinish the activity books.Retellthearticle.