2019高考英语说明文篇章解读

AnalyzingtheStructureofExpositoryEssays高三英语说明文语篇结构分析授课教师：谢岑指导老师：兰郑勇FuzhouGezhiMiddleSchool福州格致中学What'sisit?topic？？whenwhywhathowWhatisan?AnExpositoryEssayiswrittenforthepurposeofclassifying,explainingandinformingf______otherpeople’svieworreportingaboutaneventorsituation.fairlywithoutprejudice•Differenttypesof.DescriptiveessayCompare&ContrastessayProcessessayProblem&SolutionessayCause&Effectessay-Whatisthetopic?-Whichtypeofessaydoesitbelongto?Descriptiveessay-Canyoupredictwhatwillbedescribed?FirstreadingUnderlinethetopicsentenceofeachparagraphTips:a.(ageneralstatement)intheb________;b.(ac_________)intheend;c.(atransition)after“however、____，_____，______…”;d.(aresearchresult)after“found,_______,____,_______…”;Atopicsentenceisastatementthattellswhatyourparagraphwillbeabout.SecondreadingbeginningconclusionbutthoughbesidesshowedsaidindicatedAsdataandidentitytheftbecomesmoreandmorecommon,themarketisgrowingforbiometric（生物测量）technologies—likefingerprintscans—tokeepothersoutofprivatee-spaces.Atpresent,thesetechnologiesarestillexpensive,though.ResearchersfromGeorgiaTechsaythattheyhavecomeupwithalow-costdevice（装置）thatgetsaroundthisproblem:asmartkeyboard.Thissmartkeyboardpreciselymeasuresthecadence（节奏）withwhichonetypesandthepressurefingersapplytoeachkey.Thekeyboardcouldofferastronglayerofsecuritybyanalyzingthingsliketheforceofauser’stypingandthetimebetweenkeypresses.Thesepatternsareuniquetoeachperson.Thus,thekeyboardcandeterminepeople’sidentities,andbyextension,whethertheyshouldbegivenaccesstothecomputerit’sconnectedto—regardlessofwhethersomeonegetsthepasswordright.Italsodoesn’trequireanewtypeoftechnologythatpeoplearen’talreadyfamiliarwith.Everybodyusesakeyboardandeverybodytypesdifferently.Inastudydescribingthetechnology,theresearchershad100volunteerstypetheword＂touch＂fourtimesusingthesmartkeyboard.Datacollectedfromthedevicecouldbeusedtorecognizedifferentparticipantsbasedonhowtheytyped,withverylowerrorrates.Theresearcherssaythatthekeyboardshouldbeprettystraightforwardtocommercializeandismostlymadeofinexpensive,plastic-likeparts.Theteamhopestomakeittomarketinthenearfuture.thoughsaydoesn'taren’tsayaffirmativetonePara1:Whydoyouthinktheauthormentionthe“presenttechnology”?Para2:Canyoupredictwhattheauthorwilltalkaboutafterintroducingtheterm“smartkeyboard”?Para3:Whatdoyouthinkisthepurposebyusingtheword“familiar”?Para4:Whatdoestheauthorwanttoshowbytalkingabout“market”?exploreAtpresent,thesetechnologiesarestillexpensive,though.theyhavecomeupwithalow-costdevice（装置）thatgetsaroundthisproblem:asmartkeyboardItalsodoesn’trequireanewtypeoftechnologythatpeoplearen’talreadyfamiliarwith.thekeyboardshouldbeprettystraightforwardtocommercializeandismostlymadeofinexpensive,plastic-likeparts.PresenttechnologystillexpensiveLow-costdevicesolvetheproblemBefamiliartopeopleWillbeputintomarketsoontopicsentenceskeyinfomationfunctionsproblemsolutionadvantagefuturei____s___C_________introducesupportConcludeTointroducewhyyouaretalkingaboutitTopresentwhatyouareexplainingToconcludewhatdifferenceitmakesTosupportyourthesisstatementAthesisstatementoffersasummaryofthemainidea.introductiontopicsupportingpartconclusionreasons,examples,statistics,quotes,steps...ExpositoryManIntroductionTopicBodyParagraphsConclusionthesisstatement1.1Whydotheresearchersdevelopthesmartkeyboard?A.Toreducepressureonkeys.B.ToimproveaccuracyintypingC.Toreplacethepasswordsystem.D.Tocutthecostofe-spaceprotection.1.2Whatmakestheinventionofthesmartkeyboardpossible?A.Computersaremucheasiertooperate.B.Fingerprintscanningtechniquesdevelopfast.C.Typingpatternsvaryfrompersontoperson.D.Datasecuritymeasuresareguaranteed.Challenge:ResearchersfromGeorgiaTechsaythattheyhavecomeupwithalow-costdevice（装置）thatgetsaroundthisproblem:asmartkeyboard.Thissmartkeyboardpreciselymeasuresthecadence（节奏）withwhichonetypesandthepressurefingersapplytoeachkey.Thekeyboardcouldofferastronglayerofsecuritybyanalyzingthingsliketheforceofauser’stypingandthetimebetweenkeypresses.Thesepatternsareuniquetoeachperson.Thus,thekeyboardcandeterminepeople’sidentities,andbyextension,whethertheyshouldbegivenaccesstothecomputerit’sconnectedto—regardlessofwhethersomeonegetsthepasswordright.generalstatementThuscauseeffectParagraph2:1.1Whydotheresearchersdevelopthesmartkeyboard?A.Toreducepressureonkeys.B.ToimproveaccuracyintypingC.Toreplacethepasswordsystem.D.Tocutthecostofe-spaceprotection.1.2Whatmakestheinventionofthesmartkeyboardpossible?A.Computersaremucheasiertooperate.B.Fingerprintscanningtechniquesdevelopfast.C.Typingpatternsvaryfrompersontoperson.D.Datasecuritymeasuresareguaranteed.1.3Whatdotheresearchersexpectofthesmartkeyboard?A.It’llbeenvironment-friendly.B.It’llreachconsumerssoon.C.It’llbemadeofplastics.D.It’llhelpspeeduptyping.1.4Whereisthistextmostlikelyfrom?A.Adiary.B.AguidebookC.Anovel.D.Amagazine.Challenge:•Justaseverytypingpattermisunique,sodoeseveryExpositoryman.ExploreStep1:Locatethetopicsentences;Step2:Pickoutthekeyinformation;Step3:Explorethefunctionofeachparagraph;Step4:Drawtheexpositoryman;Step5:Comparenoteswithyou