人教新课标高中英语选修8第二单元 Book 8 Unit 2 Cloning 学案含答案文档资料.docx
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人教新课标高中英语选修8第二单元 Book 8 Unit 2 Cloning 学案含答案文档资料.docx
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人教新课标高中英语选修8第二单元Book8Unit2Cloning学案含答案文档资料
Unit2Cloning(Book8)
Period1ReadingCloning:
Whereisitleadingus?
Class:
Name:
__________Group:
No:
______
LearningObjectives:
1.Learntheusefulnewwordsandexpressions.
2.Readthepassageandlearnsomeinformationaboutcloning.
LearningKeyPoints:
1.Grasptheimportantwordsandexpressionsinthereadingmaterial.
2.Learnthetextandmasterthemajorusesofcloningandthesuccessandproblemof
cloningDollythesheep.
LearningDifficultPoints:
1.HelpSsimprovethestudents’readingability.
2.Sslearnthereadingskills:
scanningandskimming.
Assessment:
LearningProcedures:
I.【Pre-classhomework】
Scanthetextandchoosethebestanswer.
1.Themainideaofthetextis_____________.
A.animalcloningisveryvaluableandcanbenefittheworld
B.animalcloningcouldbemisusedbybadpeoplesoitmustbeforbidden
C.animalcloningiswelldevelopedbecauseDollythesheepwasborn
D.animalcloningraisedargumentsandscientistsarenotsureaboutitsfuture
2.WhichofthefollowingstatementsaboutcloningisNOTtrueaccordingtothetext?
A.Cloningissomethingthathasbeendevelopedquiterecently.
B.Twainsthatlookexactlythesameareoriginallyfromthesameegg.
C.Cloningisusedbygardenerstomakemoremoney.
D.Animalcloningismuchmoredifficultthanplantcloning.
3.ThelambisthecloneofthecellfromsheepBbecause______________.
A.itprovidestheeggcellB.itgivesbirthtothelamb
C.itprovidesthenucleusD.itisafemalesheep
4.WhichofthefollowingisNOTaproblemordangerofcloningmentionedinthetext?
A.Evilleadersmaywanttoclonethemselves.
B.Animalclonesmaydeveloptheillnessofolderanimalsandmaydieyoungerthanthedonoranimals.
C.Therearemoralobjectionstocloninghumanbeings.
D.Toomuchcloningmayleadtothedestructionofthebalanceofnature.
5.WhichofthefollowingisNOTanadvantageofcloning?
A.Cloningcanbeusedformedicalpurposes.
B.Largequantitiesoffoodcanbeproducedbycloning.
C.Famouspersonswhohavepassedawaycanbecloned.
D.Cloningcanhelpkeepanimalsfrombecomingextinct.
6.Wecaninferfromthelastthreeparagraphsthat_____________.
A.ThenormaldevelopmentofDollyhadnoeffectonthecloningofotherspecies.
B.Dolly’sseriousdiseaseandfinaldeathdisturbedeveryoneintheworld.
C.Dollysuccessfullyclonedanewlambwiththehelpofcloningscientists.
D.Therewereargumentsaboutanimalcloningandconcernsaboutthefutureofcloning.
7.Whatisthewriter’sattitudetowardcloninginthepassage?
A.Thewriterisagainstcloning.
B.Thewriterisinfavourofcloning.
C.Thewriterdoesnotstateanypersonalopinionaboutcloning.
D.Thewriterisinagreementwithcloning.
Assessment:
II.【While-class】
Step1.Lead-in
Step2.Groupdiscussion
Step3.Consolidation
Readthetextcarefullyandanswerthefollowingquestions.
1.Howmanymajorusesdoescloninghave?
_____________________________________________________________
2.WhatisusedintheprocedureforcloningDollythesheep?
________________________________________________
3.Whatcanweinferfromthelastparagraph?
4.Findoutthemainideaofeachparagraph:
Para.1:
___________________________________________________________
Para.2:
___________________________________________________________
Para.3:
___________________________________________________________
Para.4:
___________________________________________________________
Para.5:
___________________________________________________________
5.Readthetextagainandfillintheblanks.
Cloningisawayofmakingan1._____________(exactly)copyofanotheranimalorplant.Ithastwomajoruses.2.____________,gardenersuseittoearnprofits.Secondly,itisvaluableforresearchonnewplantspeciesand3.____________medicalresearchonanimals.Althoughcloningmammalsisdifficult4.___________(undertake),thedeterminationandpatienceofthescientists5.____________(pay)offin2019.Thefact6.___________sheseemedtodevelopnormallywasvery7._______________(encourage).Butshehadhalfofthe8.________________(long)oftheoriginalsheep,9.____________arosescientists’concern.Uptonow,cloningisstill10._________________(controversy).
Keys:
【Pre-classhomework】
1.D2.A3.C4.D5.C6.D7.C
Step3.Consolidation
1.Ithastwomajoruses.Firstly,gardenersuseitallthetimetoproducecommercialquantitiesofplants.Secondly,itisvaluableforresearchonnewplantspeciesandformedicalresearchonanimals.
2.ThenucleusofsheepB.
3.Somegovernmentswillpermitresearchintohumancloningwithaimofmedicalaid.
4.Para.1:
Thedefinitionofcloning
Para.2:
Thetwomajorusesofcloning
Para.3:
Theproble
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