2023學(xué)年完整公開課版教學(xué)設(shè)計：DNA-theSecretofLife

Module2DNA-theSecretofLife

教學(xué)設(shè)計(第2課時)

Content:

ReadingandVocabulary(1)

Step1Readparts1and2ofthepassageandanswerthequestions.

1.WhydidWatsonandCricksay,“Wehavediscoveredthesecretoflife”?

BecausetheydiscoveredDNAandthatiswhatgenesaremadeof.

2.DoyouthinkstoriedA-Dinpart2aretrue?Why?/Whynot?

StoryA

DNAtestingwasmadeastandardprocedureincriminalinvestigations.

StoryB

Usingatechnologycalledgeneticengineering,acouplehadahighlyintelligent,good–lookingbaby.

StoryC

Havingbeeninsertedananimalgene,Markwonallhisraces.

StoryD

Havingbeentestedthattheunbornchildwouldhaveaterrible,inheritedillness,thecoupledecidedtogetridofit.

Step2Readpart3ofthepassageandanswerthequestions.

1.Whatwillgeneticengineeringhelpscientiststodointhenearfuture?

Insertnewgenesintopeopletocreatenewcharacteristics.

2.Whatdoesthewriterfeelaboutthenewdevelopmentsingenetics?

Somethingswouldbepositivebutothersmightchangethebasicnatureofhumanbeings;hefeelswemustbecarefulinmakingdecisions.

Step3Lookatthewordsfromthepassage.

commitamurdercouplehereditaryperformanoperation

pregnantquestionreproducevictim

1.…h(huán)owdolivingthingsreproducethemselves?Thismeans____.

A.tohavebabiesorproducenewplantsB.tofeedthemselves

2.…ourgenes,whichpasshereditarycharacteristicsontoourchildren.Thismeans______.

A.newB.inheritedfromparents

3.Althoughthepolicequestionedhim…Thismeans_______.

A.towonderaboutsomeone

B.toasksomeonequestions

4.Butwhenhecommittedthemurder…Thismeans_______.

A.killedtheman

B.sawthedeadman

5.…Watersleftsomeofhisowncellsonhisvictim.Thismeans______.

A._thepersonheattacked

B.hisownclothes

6.Aboutsixmonthsago,Marksecretlyvisitedasurgeon,whoperformedanoperationonhim.

Thismeans________.

A.Markhadanoperation

B.thesurgeonsaidMarkshouldhaveanoperation

7.DamianPetersonandhiswifeClaraareanothercouple…Thismeans______.

A.twopeoplewhoaremarried

B.example

8.WhenClarabecamepregnant…Thismeans_______.

A.becameworried

B.wasgoingtohaveababy

Step4Readthroughthewordsinthebox,andpayattentiontothestress.

advancealterathletebenefitconsequencedevelopment

fieldgood-lookinginsertstructuretechnology

1.Whatisanotherwordfor

A.athlete

B.consequence

C.alter

D.field

E.good-looking

2.Doesaplanthaveastructure?

Yes,itdoes.

3.WhatarethebenefitsoflearningEnglish?

Internationalcommunication.

4.Canyouthinkofatechnologythatisusedinbusiness?

Computertechnology.

5.Whichtwowordsintheboxcanhavemoreorlessthesamemeaning?

advance,development

6.Ifyouinsertsomething,whatdoyoudo?

Putitintosomethingelse.

Step5Findthesesentencesandphrasesinthepassage.

1.ThediscoveryofDNAhasbeencalledthemostimportantbiologicalworkofthelast100years.Why?

Becauseithassuchabiginfluenceonourlives.

2.Butwhenhecommittedthemurder,Watersleftsomeofhisowncellsonhisvictim.

Whatwerescientistsabletodoasaresult?

MatchtheDNAinthecellstotheDNAofthesuspect.

3.TwomonthslaterJuliahadasmallbutveryexpensiveoperation…

Whatdoyouthinkthesurgeondid?

4.He’saworldchampionagain…

Whydoesn’tMarkdeservetobeaworldchampion?

Becauseheisnota“natural”champion.

5.…h(huán)ospitaltestsshowedthatherchildwouldhavethisillness.

WhydidClarahavehospitaltests?

Tofindoutiftheirunbornchildhadthefamily’shereditarydisease.

6.ANEWFUTUREISAPPROACHING.

Whydoesthewritersaythis?

Because