文本内容:
2019-2020年高中英语UnitThree学案2新人教版选修8Gettoknowsomenecessarybackgroundknowledge:IntroductiontotheUnit:Inventingisascientificactivitybecauseitusesthesameproceduresasscientificexperiment.Itisalsoacreativeactivity.Sotobeagoodinventoryouneedtobeimaginativeaswellasdisciplinedinyourapproach.Oneoftheimportantaimsofthisunitistoidentifyandsetoutthestepsthatshouldbefollowedbyanyinventor.Anotheristomakeclearthedifferencebetweenadiscoveryandaninvention.Thethirdistointroducethereaderstotheroleofthepatentofficeindecidingwhatisaninventionandwhatisnot.Inventinghasbeenapartofhumanlifeaslongashumanshavebeenontheearth.Ifyougointoamuseumyouwillseethestoneaxespotsandfishinghookswhichweretheinventionsofourancestors.Eachistheresultofsuccessfulexperimentsbyearlymanintoproblemssuchashowtocutdowntreescookandstorefoodandwaterorcatchfish.Manyobjectsthatwehavearoundustodayaresimilarmoderninventions.Themobilephonesolvestheproblemofhowtocontactsomeonewhileyouareonthemove.Thetelevisionsolvestheproblemofhowtospreadnewsandentertainpeopleathome.Thewashingmachinehelpsustokeepourclothescleanandlightenourwork.Soinventorsandinventionsarenotnewandeachoneanswersaparticularneedorsolvesaproblem.Workouttherulesthatwillhelpyoudecidewhatadiscoveryisandwhataninventionis.Workouttheconnectionbetweenadiscoveryandaninvention:discoveriesoftenleadtoinventions.Readthefollowing:DiscoveriesInventions
1.electricity
1.Systemsofdeliveringelectricallightandheatingtohomesandoffices.
2.Householdmachinesforwashingironingkeepingfoodcoldetc.
3.Computerstelephonestelevisionetc.
2.themovementofair
1.Airplanejetengines
2.Airballoonsetc.
3.thecirculationofthebloodMachinestohelppeoplewithseriousdiseaselikekidneyfailure
4.X-rays
1.Bodyscannerstoseewhetheryouareill.
2.MachinestotreatillnesseslikecancerAdiscoveryis_____________________________________________________.Aninventionis___________________________________________________.Inventionisgenerallythoughttomakedesignorproducesomethingnewforthefirsttime.Infactinventinggoesthroughmuchthesamestagesasyoudowithascientificexperiment.Thefirstandthemostimportantstageistoidentifyaproblemthatneedsasolution.Lookatthefollowinglistandworkoutasuitableorder.ApplyingforapatentFindingaproblemDoingresearchTestingthesolutionThinkingofacreativesolutionDecidingontheinvention
1.___________________
2._________________
3._________________
4.___________________
5._________________
6.________________。