高二英语Unit3Scienceversusnature教案Period2Reading(Theperfectcopy)Teachinggoals:1.Tolearnsomenewwordsandexpressions.2.Toimprovetheirreadingabilities.3.Tobecomemoreinterestedinreadingarticlesrelatedtoscience.Teachingfocusanddifficulties:1.Studentscanworkoutthemeaningofdifficultorunfamiliarscientifictermswithreadingstrategy.2.Studentscanholdtheirownopinionsonthebaseofreadingthearticle.Teachingaids:ThemultimediaBriefteachingprocedures:Step1WarmingupCheckthehomework.Encouragestudentstosharetheirsourcesrelevanttocloningtechnologywiththewholeclass.Tellstudentsthatcloninghasbeenthesubjectofscientificexperimentsforyears.Therecentsuccessincloninganimalshasresultedinfiercedebatesbetweenscientists,politiciansandpublic.Step2Lead–inTalkaboutDolly,knowsomeinformationaboutcloningandlearnsomenewwords.Step3Speed-readingReadquicklyandanswerthefollowingquestions1.Whatiscloning?2.Howmanyscientistsarementionedinthistext?Whowantstocloneahumanbeing?Step4ReadingindetailReadeachparagraphofthistextcarefully,andthenfindoutagreementanddisagreementaboutcloning.Pro-cloningAnti-cloning1.producevaluabletissuesandorgans1.mayproduceareal-life用心爱心专心thatcouldbeusedtosavehumanlivesFrankenshtein’smonster2.curediseaselikecancer2.createmorediseaseintheanimalworld3.helpthosewhoareunabletohavechildren3.cloningshowsnorespectforhumanlife4.helpthosewhowanttoclonetheirdeadchildren4.humanlifewouldnolongerbeunique5.weshouldbehavingfewerbabiesinordertoreduceEarth’spopulation,notcloningmoreStep5ExercisesReadthepassagecarefullyanddecidethesesentencestrueorfalse.Step6Discussion1.What’sthewriter’sattitudetocloning?2.Arethereanybenefitsfromcloning?3.Whatdoyouthinkis“theperfectcopy”?What’syouropininabouthumancloning?Step7Homework1.Readthetextagainandtrytofindoutyourfavoritesentences.2.Ifyouhadtheright,whatwouldyouliketoclone?Why?Pleasewriteashortpassage(100wordsorso).用心爱心专心
