Unit3Lesson7AFamousInventor（第二课时）教学设计九年级英语北师大版全一册

Unit3Lesson7AFamousInventor(第二课时)

LessonFocus

·Linkingwords:because,since,as,aswellas,becauseof

•Talkingaboutgreatinventors

Grammar:Linkingwords.subordinatingconjunctions(because,since,as)andaparativephrase(aswellas)

Exercise5

Purpose:tohelpstudentspletesentenceswiththecorrectlinkingwords

Directstudentstothesentences.Readthemaloud,orhaveastudentreadthem.Say“Lookbackandfindthesentencesinthetext”.Ifyoufeelyourstudentsareready,ryoumayskipthisstep.

Readthelinkingwordsaloud.Explainthatbecause,sinceandasareconjunctions.Askstudentstothinkofotherconjunctions.Elicitand,but,orandso.Formoreadvancedstudents,explainthatthosearecoordinatingconjunctions.Tocoordinatemeanstojointwosimilarorplementaryideas.Because,sinceandasaresubordinatingconjunctions.Tosubordinatemeanstobedependant,ortoneed.Subordinatingconjunctionsalsojoinideas,buttheclause(sentence)withthesubordinatingconjunctiondependsontherestofthesentenceforthemeaningtobeclear.

Say“Nowpletethesentenceswithbecause,sinceoras,accordingtothetext”Monitor,offeringhelpasneeded.Ifstudentsneedsupport,havethemworkinpairs.

Goovertheanswers,askingindividualstudentstosaythemaloud.

Ask“Isthissentencecorrect?”Readthefirstsentenceinthegrammarbox,butuseasinstead.ElicitorprovideYes,it'scorrect.Thenreadthefirstsentence,butusesinceinstead.Askifit'scorrect.ElicitYes.Say“Nowpletetheothertwosentences,usingtheothertwoconjunctions.Aretheycorrect?”ElicitYes.Explainthatthesubordinatingconjunetionsbecause,sinceandasallexpressthesamething:areason.Theyareinterchangeableinsentences.Ifnecessary,givesomemoreexamplesofsentenceswiththesesubordinatingconjunctions.

Writethesetwosentenceswithsinceontheboard:I'velivedheresinceIwasachild.Iliveheresinceit'sclosetowork.Underlinesinceinbothsentences.Thenask“Whichuseofsincemeansbecauseandwhichmeansfromthattime?”Tellstudentstosubstitutebecauseandfromthattimeinthesentencestoseeiftheymakesense.ElicitorprovideSinceinthefirstsentencemeansfromthattime,andinthesecondsentencemeansbecause.DirectstudentstotheinformationintheWatchout!box.Readthefirstexamplealoud,pointingoutagaintheexplanationofsince.

Directstudentstothesecondpartoftheexercise.Readthephrasealoud.Say“pletethesentencewithaswellas”.Pointoutthatinthissentence,itimpliesadditionandmeansand.

Writethesetwosentencesontheboard:Hewasanartistaswellasaninventor.HeplaystheviolinaswellasIdo.Underlineaswellasinbothsentences.Ask"Inwhichsentencedoesaswellasmeaninthesamewayasandwhichdoesitmeanand?"Again,havestudentsreplacethosewordsinthesentencesandseewhichmakessense.ElicitorprovideAswellasinthefirstsentencemeansand,andinthesecondsentence,itmeansinthesamewayas.Directstudentstothe.WatchOut!box.Readthesecondexamplealoud,pointingouttheexplanationofaswellas.

Ifnecessary,providestudentswithmoreexamples.

Answers

because,As,Since,aswellas

Exercise6

Purpose:tohelpstudentsidentifyhowwordsareused

Directstudentstotheunderlinedwords.Ask“Whocanrememberthetwomeaningsofsince?”ElicitorprovideBecauseorfromthetime.Thenask"Whocanrememberthetwomeaningsofthephraseaswellas?"ElicitorprovideNicelyinthesamewayasorand.Ifyoufeelyourstudentsareready,youmayskipthisstep.

Directstudentstothesentences.Ask“Whatdotheunderlinedwordsmean?Writethemeaningfromthechoicesgiven”.Readthechoicesaloud.Monitor,offeringhelpasneeded.Ifstudentsneedsupport,havethemworkinpairs.

Goovertheanswers,havingindividualstudentsreadtheiranswersaloud.Encouragestudentstoanswerinpletesentences.

Answers

1.fromthetime,2.because,3.nicelyinthesamewayas,4.and

Exercise7

Purpose:tohelpstudentsunderstandthedifferencesbetweenbecauseandbecauseofandpletesentenceswithsince,as,becauseorbecauseof

WriteontheboardHeisstillfamoustodaybecauseoftheMonaLisa.andDaVinci'sdiariescanonlybereadwithamirrorbecauseeverythingiswrittenbackwards.Underlinebecauseandbecauseofandpointtothefirstsentence.Ask“WhyisdaVincistillfamoustoday?”ElicitorprovideBecauseoftheMonaLisa.Thenask“WhycandaVinci'sdiariesonlybereadwithamirror?”ElicitorprovideBecauseeverythingiswrittenbackwards.Explainthatbothbecauseandbecauseofintroducereasons.Pointtobecauseinthesecondsentence.Remindstudentsthatbecauseisasubordinatingconjuntion.Asubordinatingconjunctionisfollowedbyapletesentence:underlineeverythingiswrittenbackwards.Pointtobecauseofinthefirstsentence.Ask“Whatpartofspeechisof?”ElicitorprovideApreposition.Aprepositionisfollowedbyanounornounphrase;underlinetheMonaLisa.

Provideotherexamplesofsentenceswithbecause:Shecouldonlyeatasaladintherestaurantbecausesheisavegetarian.Hecrashedhiscarbecausehewasdrivingtoofast.Shefoundtheexameasybecauseshehadstudiedhard.Havestudentsidentifytheclauseafterbecauseineachandunderline.Thenprovidemoreexamples