高中英语Unit2CloningReading课件新人教版选修8

Unit2Cloning人教版选修八Period1ReadingNaturalclone

isonethatoccurs

inanaturalformofcloning

withouthumanhelp.Man-madeclone

isonethat

producedthroughhuman

intervention(介入).Inpairs,lookatthesepicturesanddiscusswhichonesarenaturalclonesandwhichonesareman-made.Explainhowtheydiffer.discussionAstrawberryplantNaturalcloneGrowingnewplantsman-madecloneTwinsNaturalcloneDollythesheepShewascloned

while

theotherswerebornnaturally.Dollywasa______sheep.clonedHowdoesDollydifferfromothersheepman-madecloneReading

Listentothetapeandfindoutthemainideaofeachparagraph.Cloningisawayofmakinganexactcopyofanotheranimalandplant.WhatiscloningIthappensbothin______andin_______.Theycanbeclonedby________and_______.plantsanimalsthemselveshumansNaturalcloneMan-madeclonePara1

ThedefinitionofcloningPara21996ThemajorusesandproceduresofcloningAtfirst,thefactthatDollydeveloped______inanaturalwaywas__________.Later,thenews_____shelivedforsixyears,halfthelengthofthelifeofthe______onewas__________.Finally,theproblemthatoccurredtothescientistswasthataclonedanimallives

_____________theoriginalone.Para3TheproblemsofDollynormallyencouragingorginalthataslongas/shorterthan/longerthandisturbingshorterthanPara4TheimpactofDollyTrueorfalse:1PeoplefearedthatClonedHitlerswoulddoharmtotheworld.2Alltheresearchintohumanbeingswillbeforbidden.3Somecountrieswillusecloninginawiseway.Para5People’sreactiontocloningManygovernmentsforbadereserchintohumanbeings.theauthordoesnotstateany

personalopinionaboutcloning.A.Objective(befair)

B.Negative(beagainstit)C.Positive(beinfavorofit)Thewriter’sattitudetowardscloningBecause_________________________________________________________________IntensiveReadingFillinthechartonPage12usingtheinformationfromthetext.Whichiseasiertoclone,plantoranimalDiscussion

Homework1.

TranslatetheprocedureofcloningDollythesheepintoChinese.2.

FinishEx.1,2,3,Page12.AstrawberryplantThenewplantsthatgrowfromtherunnersareexactcopiesoftheoriginalplant.一株草莓依靠它沿地“爬走〞的匍匐茎,一年内就能长出数百株草莓苗富贵竹插枝即活

Thegardenersh