Unit+5+Lesson 29教学设计 冀教版英语九年级全册

教学设计Lesson29DNA--The Storyof YouLesson29DNA—The Story课题课型阅读课of You基本信息主备人课时1备课时间

2023.

10.16授课时间

1.To readand understandthe passageabout DNA.教学目标

2.To knowmore about DNA.

3.Study hardand workfor ourcountry,make ourcountry strongerand stronger.general,repeat,grandson,granddaughter,instruction,in general,expect重占for,be relatedto,billions of...教学重难点难点To knowmore aboutDNA.教学策略情境教学法教具准备音频PPT主备Step1Lead inAsk the studentsa question:What doyou knowabout DNALetthe students watch a video aboutDNA.How doesit workLet5swatchavideo.Step2PresentShow somepictures tolearn thenew wordsin thislesson.Askthestudents toread aloud,and ask them to make sentenceswith thenew words.教学过程Step3Readingl.Listen toParal-3,and Hllin the blanks:When youbuild a house,you usea blueprint.Whats ablueprint In___________,ablueprint isa drawingthat showhow to___________ahousetogether withmanydifferent_______.DNA isthe blueprintof life.But building a living thing______far______complex thanbuildingahouse.Ittakes________________years fornature to change the DNA in living things tomake them fit the world theylive in.are youWhat colourar your eyes Whatsize areyour feetAll thesethings areinfluencedby yourDNA beforeyour areborn!Answers:general,put,parts,is,more,millions of,How tall,strongly

2.Read the passage againand writetrue Tor falseF.

1.Nature changedthe DNA inlivingthingstomake themfit theworld theylive in.

2.Your DNAdecided yourheight,your eyecolor andthe sizeof yourfeet.

3.Everyone intheworldhas theirown uniqueDNA.

4.There isonly oneset ofDNA inyour body.

5.Your DNAwill passon toyour nextgeneration.Answers:TFFFTStep4Exercises:

1.Fill inthe blankswith thephrases inthe box.in generalexcept fbrnot only...but alsorelatedto evenif thesame...as

1.Your homeworkis quitegood afew spellingmistakes.

2.the youngthe oldlike popmusic.

3.Kates hairis colourher sisters.

4.,women livelonger thanmen.

5.many difficultiesremain,we canovercome them.

6.Is wealthhappiness

2.askthestudents tofinish No.

3.Step5RetellingWhat haveyou learntaboutDNAFill intheblanksand tryto retellthepassageto yourpartner.DNA is.Building alivingthingis.It takesmillions ofyears fornature totomakethemfittheworld.DNA stronglyinfluenced yourheight,youreyecolor andthe sizeof yourfeet before.Except forsome twins,every livingthing has.Some healthproblems canbe byproblems.There areof yourDNAinof yourbody.Scientists cannot onlyyou,but alsopeople whoyou.Step6Group workIsit agood ideatochangetheDNAof thefood weeat Somepeople saydoing thismakesour foodbetter.Others thinkits toodangerous.Search theInternet forinformationand writedown yourideas.

1.Write ashort reportabout itand bringsome photosof yourgrandparents and布置作业yourself.

2.Preview thewords andexpressions inLesson

30.Lesson29DNA-The Storyof Yougeneral,repeat,grandson,granddaughter,instruction,in general,expect for,berelated to,billions of...板书设计教学反思:。