Unit 8.docx

Unit 8.docx

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Unit8

Unit8Cloning

I.SuggestedTeachingPlan

（6periods）

Objectives

Studentswillbeableto:

1.understandthemainidea（cloningisatwo-edgedsword）andstructureofthetext;

2.appreciatethewritingstrategiesemployedbytheauthor;

3.masterthekeylanguagepointsandgrammaticalstructuresinthetext;

4.conductaseriesofreading,listening,speakingandwritingactivitiesrelatedtothethemeoftheunit

Timeallotment

1stperiod:

Pre-reading;While-reading（PartI）

2ndperiod:

While-reading（PartI,PartII）

3rdperiod:

While-reading;

4th&5thperiod:

Post-reading;.Checkon5s'homereading（TextB）

6thperiod:

Theme-RelatedLanguageLearningTasks

Pre-readingtasks

1.Tasks5sthefollowingquestionsontherecordedinterview:

（5minutes）

-WhatdoesProf.Greelythinkofhumancloning?

（Wemustdistinguishdifferenttypesof

humancloning.Somearejustified;othersarenot.）

-Whatisthegreatestproblemwithhumanreproductivecloning?

（safety）

2.Out-of-classresearchproject（30minutes）

1）Theresearchprojectshouldbeassignedattheendofthelastunit.SsformgroupstouselibraryresourcesandInternetresourcestogetanswerstothefollowingquestions:

-Whatiscloning?

-Giveabriefhistoryofthescientificresearchintocloning.

-Whatarethemajorprosandconsofhumancloning?

-Duringyourresearch,whatnewvocabularyitemshaveyoucomeacrossthatarerelatedtocloning?

2）Groupsreporttoclass.Tosavetimeandgivepresentationopportunitiestomoregroups,no

onegroupneedanswerallthequestions.Agroupmembermaywritedownnewvocabulary.items（inbothEnglishandChinese）ontheblackboardwhileanothermemberispresenting.:

3.Tmayleadintothetextbysaying:

Bynowmanyofyoumayhavealreadyformedyourownideaabouthumancloning,butlet'srefrainfromopinionsforthemoment.TheauthorofTextAisasciencereporter.Likeagoodjournalist,let'sfirstmakethefactsclear.（2minutes）

While-readingtasksI

1.PartI（70minutes）

1）Ssscanthefirstthreeparagraphstoseewhereatensechangetakesplace.Bythusdoingtheywillseethatthefirsttwoparagraphsactasintroductiontothewholeessay.

2）TasksSsthefollowingquestions:

-ThisisapieceofjournalisticwritinglikeTextA,Unit7.Whatimportantroledobeginningparagraphsplayinjournalisticwriting?

-Whydidn'ttheauthorstartfromtheverybeginningofcloningresearch,butstartwiththe

birthofDolly?

（seeTextAnalysis）

3）TexplainslanguagepointsinPartIandgivesSspractice（seeLanguageStudy）.

4）Sssumupthemain-ideaofPartI.

2.TexplainslanguagepointsintherestofthetextandgivesSspractice（seeLanguageStudy）.

（70minutes）

3.SsdoTextOrganizationExercises1and2.（25minutes）

1.Learningaboutwritingstrategy（40minutes）

1）SsreadWritingStrategyinthisunit.

2）Ssdotheafter-textstructureexerciseon"Itistrue...,but..."and"True...,but...",sothat

theyrealizethisisoneformofconcession.,

3）TremindsSsthatthisisapieceofjournalisticwriting,theauthorofwhichmustrefrainfrom

passingjudgment.He/Sheconcedestoachieveobjectivity.

4）Ssfindotherexamplesofbalanced,objectivewriting.（seeTextAnalysis）

2.TguidesSsthroughsomeafter-textexercises.（35minutes）

3.TchecksonSs'homereading（TextB）.（3minutes）

4.SsdoPartIV:

Theme-RelatedLanguageLearningTasks.（1period）

ll.TextAnalysis

ThistexthassomefeaturesincommonwithTextA,Unit7:

aneye-catchingintroductionandobjectivity

ThetextstartswiththebirthofDolly,becauseitisacriticalpointincloningresearch.Readerinterestisfurtherarousedbythelow-keytone.Whynoexcitement,whynochampagne,whywerefewpeoplearound?

Readersarethenreadytobetoldanobjectiveaccountabouthumancloning.

The"father"ofDollyislevel-headedabouthisachievement,soistheauthor.ShequotesWilmutandOppenHeimertoshowhow"sciencecanbeadouble-edgedsword.BeforelistingthemanybenefitsofhumancloninginPartIV,shefirstidentifiestheethicalproblemsinvolvedinPartIII.Inherarticlesheasksmanyquestions,towhichshegivesnoanswer.Ifshesaidthatthereweredefiniteanswers,shewouldnotbeobjective..

However,comparedwithTextA,Unit7,thewordchoiceismoreelaborate;.sentencesandparagraphsgrowlongerandmorecomplex.Afterall,thisisaboutscienceandethics!

III.CulturalNotes

1.clone:

agroupoforganismsorcellsthataregeneticallyidentical,havingbeenproducedfromoneparentbyasexualreproduction.Theindividualorganismsorcellsareprecisecopiesoftheparentandgeneticallyidenticaltoit.Clonesarefoundnaturallyamongsingle-celledorganisms（suchasbacteria）,afewinvertebrates（suchascorals）,andsomeasexuallyreproducingplants{as