高中英语《Unit 3 Inventors and inventions》2学案 新人教版选修8.doc

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1、2012安徽省泗县三中高二英语学案：《Unit3Inventorsandinventions》2（新人教版选修八）学案二Gettoknowsomenecessarybackgroundknowledge:IntroductiontotheUnit:Inventingisascientificactivitybecauseitusesthesameproceduresasscientificexperiment.Itisalsoacreativeactivity.Sotobeagoodinventor,youneedtobeimagin

2、ativeaswellasdisciplinedinyourapproach.Oneoftheimportantaimsofthisunitistoidentifyandsetoutthestepsthatshouldbefollowedbyanyinventor.Anotheristomakeclearthedifferencebetweenadiscoveryandaninvention.Thethirdistointroducethereaderstotheroleofthepatentofficeindecidingwhati

3、saninventionandwhatisnot.Inventinghasbeenapartofhumanlifeaslongashumanshavebeenontheearth.Ifyougointoamuseum,youwillseethestoneaxes,potsandfishinghooks,whichweretheinventionsofourancestors.Eachistheresultofsuccessfulexperimentsbyearlymanintoproblemssuchashowtocutdowntre

4、es,cookandstorefoodandwaterorcatchfish.Manyobjectsthatwehavearoundustodayaresimilarmoderninventions.Themobilephonesolvestheproblemofhowtocontactsomeonewhileyouareonthemove.Thetelevisionsolvestheproblemofhowtospreadnewsandentertainpeopleathome.Thewashingmachinehelpsustok

5、eepourclothescleanandlightenourwork.Soinventorsandinventionsarenotnewandeachoneanswersaparticularneedorsolvesaproblem.Workouttherulesthatwillhelpyoudecidewhatadiscoveryisandwhataninventionis.Workouttheconnectionbetweenadiscoveryandaninvention:discoveriesoftenleadtoinven

6、tions.Readthefollowing:DiscoveriesInventions1.electricity1.Systemsofdeliveringelectricallightandheatingtohomesandoffices.2.Householdmachinesforwashing,ironing,keepingfoodcold,etc.3.Computers,telephones,television,etc.[2.themovementofair1.Airplanejetengines2.Airballoons,

7、etc.3.thecirculationofthebloodMachinestohelppeoplewithseriousdisease(likekidneyfailure4.X-rays1.Bodyscannerstoseewhetheryouareill.2.Machinestotreatillnesses(likecancer)Adiscoveryis_____________________________________________________.Aninventionis_______________________

8、____________________________.Inventionisgenerallythoughttomake,designorproducesomethingnewforthefirsttime.Infa