高中英语 Unit Three 学案2 新人教版选修8.doc

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1、NSEFCModule8学案二Gettoknowsomenecessarybackgroundknowledge:IntroductiontotheUnit:Inventingisascientificactivitybecauseitusesthesameproceduresasscientificexperiment.Itisalsoacreativeactivity.Sotobeagoodinventor,youneedtobeimaginativeaswellasdisciplinedinyourapproach.Oneoftheimportantaimsofthisunitist

2、oidentifyandsetoutthestepsthatshouldbefollowedbyanyinventor.Anotheristomakeclearthedifferencebetweenadiscoveryandaninvention.Thethirdistointroducethereaderstotheroleofthepatentofficeindecidingwhatisaninventionandwhatisnot.Inventinghasbeenapartofhumanlifeaslongashumanshavebeenontheearth.Ifyougointo

3、amuseum,youwillseethestoneaxes,potsandfishinghooks,whichweretheinventionsofourancestors.Eachistheresultofsuccessfulexperimentsbyearlymanintoproblemssuchashowtocutdowntrees,cookandstorefoodandwaterorcatchfish.Manyobjectsthatwehavearoundustodayaresimilarmoderninventions.Themobilephonesolvestheproble

4、mofhowtocontactsomeonewhileyouareonthemove.Thetelevisionsolvestheproblemofhowtospreadnewsandentertainpeopleathome.Thewashingmachinehelpsustokeepourclothescleanandlightenourwork.Soinventorsandinventionsarenotnewandeachoneanswersaparticularneedorsolvesaproblem.Workouttherulesthatwillhelpyoudecidewha

5、tadiscoveryisandwhataninventionis.Workouttheconnectionbetweenadiscoveryandaninvention:discoveriesoftenleadtoinventions.Readthefollowing:DiscoveriesInventions1.electricity1.Systemsofdeliveringelectricallightandheatingtohomesandoffices.2.Householdmachinesforwashing,ironing,keepingfoodcold,etc.3.Comp

6、uters,telephones,television,etc.2.themovementofair1.Airplanejetengines2.Airballoons,etc.3.thecirculationoftheMachinestohelppeoplewithseriousdisease(likekidneybloodfailure)4.X-rays1.Bodyscannerstoseewhetheryouareill.2.Machinestotreatillnesses(likecancer)Adiscoveryis_________________________________

7、____________________.Aninventionis___________________________________________________.Inventionisgenerallythoughttomake,designorproducesomethingnewforthefirsttime.Infactinventinggoesthroughmuchthesamestagesasyoud