高考英语精品同步备课课件 英语 外研版（2019）必修三 Unit3 Developing ideas.pptxVIP

Unit3TheworldofscienceBYXXXXDevelopingideas

Lead-in:Whatcanyougetfromthevideo?GalileoExperimentsontheLeaningTowerofPisaNewtonGravity

Pre-reading:Whatdoyouknowabouthim?BenjaminFranklin(1706-1790)wasoneoftheFoundingFathersoftheUnitedStatesandhelpeddrafttheDeclarationofIndependence.Apartfrombeingasuccessfulstatesman,hewasalsowellknownasaleadingAmericanauthor,printerandpublisher,successfuldiplomat,creativescientistandinventor.美国的开国元勋之一政治家作家印刷商出版商发明家外交官科学家起草《独立宣言》

Toencouragereaderstoquestionthisexperiment.ReadingTip:Werecognizethepurposebyreadingthetitle,firstparagraphandlastparagraph.Pre-reading:Whatisthefunctionofthequestionmark?

明确的隐含的

While-reading:ReadthepassageandfindoutwhatFranklinsexperimentaimedtoprove.Franklinsexperimentaimedtoprovethatlightningwasaformofelectricity.

While-reading:Readandmatchthemainideas.Paragraph1A.Questioningacceptedideas.Paragraph2B.Benefitsofthestoriesaboutexploringscience.Paragraph3 C.BenjaminFranklin’sfamousexperiment.Paragraph4 D.Summingupthethemethetext.Paragraph5E.Introductionofthethemeofthetext.Paragraph6F.Noteverythingabouttheexperimentistrue.

While-reading:Readandfillintheexperimentreport.AimMaterialsResultProcedures?ExperimentReportToproveiflighteningwasreallyproducedbyelectricityorsomethingelse.Akitewithastringandametalkey.Lightningwasaformofelectricity.

Aflashoflightninghitthekite.Electricitywasconductedtothekey.Franklingotanelectricshock.Franklintouchedthekey.Franklinraisedthekite.1234

1Readandretelltheexperiment.234Heraised?the?kite?with?a?piece?of?string?tied?to?it.?Ametal?key?was?attached?to?the?string.?A?flash?oflightning?hit?the?kite,?and?electricity?was?conductedthrough?the?string?to?the?key