《Lesson 29 DNA - The Story of You》教案冀教版九年級全一冊初中英語-九年級英語教案

[來源:Z&xx&k.Co

Lesson29:DNA-TheStoryofYou

Teachingaims:

1:wordsandphrases.

2:ImprovetheSs'abilityofreading,understandthetextaboutDNA.

3:Knowaboutthenature,science,andourbody.Youareuniqueintheworld.

Importantpoints:wordsandphrases

Difficultpoint:Attributiveclause

Teachingprocedure:

Step1.Greeting.

Step2.Leadin:Lookatthepictures,thenwatchavideoaboutDNA.

Step3.Reviewthewordsandpractice.

Step4.Listening:AsktheSstolistentothetape,thenanswerthequestions:WhatisDNA?HowisDNA?

Step5:Reading:Readandanswerthequestions:

(1).Whatisablueprint?

(2).Whichismorecomplex,buildingalivingthingorbuildingahouse?

(3).DosometwinshavethesameDNA?

(4).IsitpossibletochangeyourDNA?

(5).WhoseDNAisrelatedtoyours?

Step5.Careful-readingpart2:

WhyisDNAfantastic?

Step6:Languagepoints:

Watchavideoaboutlanguagepoints

Step7:It’stimetopractice.

Step8:Freetalk:IsitagoodideatochangetheDNAofthefoodweeat?

Step9:Summary:Weallknow.YourDNAcomesfromyourparents.YouhaveyourownuniqueDNA,butitrepeatspatternsfromyourparents’DNA.FromyourDNA,scientistscanidentifynotonlyyou,butalsopeoplewhoarerelatedtoyou,Yourparentsandgrandparentsarerelatedtoyou,andyouhavetheirDNA.Whenyouhaveagrandsonorgranddaughter,heorshewillhaveyourDNA.

Step10:Homework

1.Writethecompositiondowninyourbook.

2.FinishLet’sdoit3.

3.Readthetextthreetimeatleast.

Blackboard-writing:

Lesson29:DNA-TheStoryofYou

isablueprintoflife.ingeneral

DNA

1.unique.exceptfor

2.healthy

Changeable.beableto