教学设计：SandstormsinAsia优质课比赛一等奖

Module4SandstormsinAsiaPeriod3Grammar1;Grammar2;PronunciationandFunction教学设计教材分析本节是语法课，针对的是汉语中没有的语法现象：不定式和but+不定式。教师可以先让学生通过例句总结出不定式的形式和用法。分组讨论分析的方法可以使学生在课堂上积极参与而不是被动的记忆一些语法条目。同时应该在学生了解何为不定式之后设计一些对应的练习来加深印象并记住用法。语音和功能部分与语法部分相关，放在本节处理，便于学生类比记忆。三维目标1.知识与技能1)Makestudentslearntosumupgrammaticalrulesbythemselves.2)Makesurestudentsmasterthegrammaticalitems.3)Expressstrongfeelingsthroughspecialsentencepatterns.2.过程与方法1)Motivatestudents’enthusiasmintakingpartintheclass.2)Trytothinkinanegativewaywhenexpressfeelingswithnegativesentences.3.情感与价值Throughthestudyofthisperiodstudentswillsurelyknowmoreaboutdifferenttypesofinfinitive.教学重点1.Encouragestudentstosumupgrammaticalrules.2.EncouragestudentstothinkintheEnglishway.教学难点1.Thedefinitionsofdifferentformsofinfinitiveandhowtousethem.2.HowtothinkintheEnglishway.教学方法1.Individualworkandpairworktomakeeverystudentworkinclass.2.Deduction.3.Practice.教学过程→Step1RevisionRevisewhatwehavelearnedlastclass.Dosomemultiplechoicequestionsaboutthepassagelearnt.(Showthefollowingonthescreen.)1.Whatisthebestdescriptionaboutasandstormaccordingtothepassage?A.ItisamajordisasterformanyAsiancountriesforcenturies.B.Itisastrongwindcarryingsand.C.Itisawaytocauselandtobecomedesert.D.Itisakindofnaturaldisasterthatcan’tbetreated.2.WhatisthemainreasonfortheincreaseofsandstorminChinarecently?A.Tobeclosetomanydeserts.B.TheworseningoftheweatherinChina.C.Itisaresultofdesertification.D.Peoplecuttingdowntreesanddiggingupgrass.3.Whateffectsaresandstormsbringingtopeoplelivingincities?A.Thewholecityisusuallycoveredbythickandyellowdust.B.Trafficmovesveryslowly.C.Peoplecan’tbreathewellandthedustmakethemill.D.Allabove.4.Whatisthebestwaytoavoidtheeffectsfromthesandstorm?A.Tolivefarawayfromdeserts.B.Tostayathomewhenasandstormhappens.C.Towearmaskifyouwanttogoout.D.Toplantmoretrees.5.WhichofthefollowingisnottheelementstomakeCentralAsia,NorthAmerica,CentralAfricaandAustraliathefourmainplaceswheretherearesandstorms?A.Theclimateintheseplacesisratherbad.B.Theyarealltheplaceswithbigdeserts.C.Thenaturalenvironmentintheseplacesisworseningeveryyear.D.Thegovernmentsintheseplacespaidlittleattentiontotheprotectionofnature.Suggestedanswers:1.B2.C3.D4.D5.D→Step2Grammar11.Inthisperiodwearegoingtotalkabouttheinfinitive.(Showthefollowingsentencesonthescreenifpossible.)Paraphrasethembyusingtheinfinitive.1)Thewindisstrongenough.Itcanmovesanddunes.2)Wewereadvised,“Don’tgooutside.”3)I’mcyclingtoworkinasandstormandit’sfrightening.4)Thereisnothinganyonecando.5)Iamtheonlypersoninmyfamilywhohasbeeninasandstorm.6)I’vebeencaughtinasandstorm.Itwasaterribleexperience.Suggestedanswers:1)Thewindisstrongenoughtomovesanddunes.2)Wewereadvisednottogooutside.3)It’sfrighteningtobecyclingtoworkinasandstorm.4)Thereisnothingtobedone.5)Iamtheonlypersoninmyfamilytohavebeeninasandstorm.6)Tohavebeencaughtinasandstormwasaterribleexperience.2.OptionOneAskstudentstosumupthedifferenttypesofinfinitive.Writethefollowingontheblackboard.形式时间概念语态todo/do与谓语动词同时发生或发生在谓语动词之后主动Givestudentsseveralminutestofillintheform.Suggestedanswers:形式时间概念语态todo/do与谓语动词同时发生或发生在谓语动词之后主动tobedoing与谓语动词同时发生,动作在进行主动tohavedone发生在谓语动词之前主动tobedone与谓语动词同时发生或发生在谓语动词之后被动tohavebeendone发生在谓语动词之前被动Letstudentsreadtheabovesentencessilentlyandtrytounderstanddifferenttypesofinfinitiveandcanusethemcorrectly.OptionTwoShowthegrammarrulesonthescreenandletstudentsunderstandthem.不定式的各种形式动词不定式是一种非限定动词,仍具有动词的一般特征,有一般式、进行式、完成式。现分别介绍如下:1.动词不定式的一般式:todo/doIamgladtoseeyouhere.很高兴在这儿见到你。Shedecidednottoaccepthispresent.她决定不接受他的礼物。Toloveandtobelovedisthegreatesthappinessoflife.有所爱而且也被人爱是人生一大幸福。2.动词不定式的进行式:tobedoingItiswrongtobealwaysthinkingofyourself.老是考虑你自己是错误的。Youdon’tneedtobeworkinginsuchabighurry,forthere’splentyoftime.你现在不必这样匆匆忙忙地干,有的是时间。Thestudentspretendedtobelisteningtotheteachercarefully.学生们假装在专心听老师讲课。3.动词不定式的完成式tohavedoneI’msorrytohavetroubledyousomuch.对不起,给你添了这么多麻烦。Heissaidtohavebeenlivingherefortwentyyears.据说他已经在这儿住了20年时间了。Itisagreathonortohavebeeninvitedtovisitthiscountry.应邀来这个国家访问我感到很荣幸。Ifeelitanhonortohavebeengivenachancetostudyhere.有机会来这里学习我感到非常荣幸。4.不定式的复合结构Itisnothardforonetodoabitofgood.(主语)一个人做点好事并不难。Thisproblemisforyoutodealwith.(表语)这个问题该由你来处理。Thesunwarmstheearth,whichmakesitpossibleforplantstogrow.(作宾语)太阳晒热大地,从而使植物得以生长。Heopenedthewindowforthefreshairtocomein.(作状语)他打开窗子好让新鲜空气进来。Thereisalotofworkforyoutodo.(定语)你有很多工作要做。Hadbetterhavestudentsdiscoversomerulesbythemselvesbeforeexplainingtothemasfollows.3.Consolidatetheinfinitiveandmakesurethatstudentscanusedifferenttypesofinfinitive.AskstudentstofinishActivities2and3individually,andthenchecktheiranswerswiththeirpartners.Thenasksomestudentstosharetheiranswerswiththewholeclass.（Showthefollowingonthescreen.）1.I’mtravelingduringasandstorm.It’sdangerous.It’sdangerousto_____________.2.Expertshopethattheywilllearnmoreaboutthemovementofthunderstorms.Expertshopeto_____________.3.Weweretold,“Don’tleavethehouse.”Weweretoldnot_____________.4.Themenneedtocompletetheworkonthehousebytheendoftheweek.Theworkonthehouseneedsto_____________.5.Itseemsthatmosthouseshavebeendestroyedbythestorm.Mosthousesseemto_____________.Askstudentstoanswerthequestions.Suggestedanswers:1.travelduringasandstorm2.learnmoreaboutthemovementofthunderstorms3.toleavethehouse4.becompletedbytheendoftheweek5.tohavebeendestroyedbythestorm（Showthefollowingonthescreen.）1.It’sfrightening_____________(walk)intheroadinasandstorm.IhopeIreachhomesoon.2.Expertshope_____________(learn)moreaboutthemovementofthunderstorms.3.I’dlike_____________(tell)aboutthesituationbeforenow.4.Theworkneeds_____________(complete)bytheendoftheweek.5.Myfatherwasoutofthecitywhenthesandstormcame.Hewasveryglad_____________(miss)it.6.Thebuildinghas_____________(finish)bytheendofthisyear.(see)arealsandstormwasveryfrightening.Suggestedanswers:1.towalk2.tolearn3.tobetold4.tobecompleted5.tohavemissed6.tobefinished7.ToseeFromtheaboveexercisestrytomastertheirmeaningsandcanusetheminsentencescorrectlyandproperly.→Step3Grammar21.Now,we’lllearnaspecialinfinitive:but+infinitive.Lookatthewordsandphrasesinboldinthesesentences.（Showthefollowingonthescreen.）Answerthequestionsbelow.aAndyetwedonothingbuttalkaboutit.bIcan’thelpbutfeelveryconcerned.cIcan’tbutwonderwhatwillhappen.1Whichwordorphrasemeansexcept?2WhichwordorphrasemeansIhaveto?3Whatpartoftheverbfollowsthewordsinbold?Givestudentsafewminutesandthencallbacktheiranswers.Suggestedanswers:1but2can’thelpbutandcan’tbut3theinfinitivewithout“to”2.(Showthefollowingonthescreen.)短语but+不定式介词but后面跟不定式的情况有以下几种:1.can’thelpbut+原形动词。例如:Hearingthenews,Icouldnothelpbutcry.听到这一消息,我忍不住哭了起来。Asasoldier,Icannothelpbutobeytheorder.作为一个军人,我只能服从命令。2.do+anything/nothing/everything+动词原形。例如:Hedoesnothingbutcomplain.他只是一个劲地抱怨。Mydogdoeseverythingbutspeak.我的狗除了不会说话以外什么都会。Can’tyoudoanythingbutasksillyquestions?你别一个劲地提愚蠢的问题好吗？3.Next,encouragestudentstofinishActivity2onPage36inpairs,andthenasksomestudentstogivetheanswers.Underlinethecorrectanswer.1.Ican’thelp/buthopethattheywillsucceed.2.Ican’thelpbutthink/tothinkthatitwasamistake.3.Ican’tchose/choosebutdoit.4.Hedoesnothingbutcomplaining/complain.5.Ican’thelpbuttolove/loveher.6.Theworkersdonothing/notbutdrinkteaandtalktoeachother.Givestudentsafewminutesandthencallbacktheiranswers.Suggestedanswers:1.plain5.love6.nothing→Step4PronunciationandFunction1.Pleaselookatpronunciationandfunction.Inthisclass,we’lllearnhowtoexpressstrongopinions.Doyouknowhowtoexpressyouragreementordisagreement?Collectstudents’answersontheblackboard.1.Iagreewithyou.2.Isupportyou.3.Youareabsolutelyright.Welldone!Todaywe’lllearnsomeotherways.2.First,listentothefollowingsentences,andunderlinethewordsthespeakerstresses.（Showthefollowingonthescreen.）Icouldn’tagreewithyoumore.Ithinkyou’reabsolutelyright.It’sextremelyserious.Askavolunteertosharehisorheranswers.Suggestedanswers:Icouldn’tagreewithyoumore.Ithinkyou’reabsolutelyright.It’sextremelyserious.Askstudentstoreadthethreesentences.Thenplaythetapeagainforstudentstofollow,payingattentiontothestressedwords.3.Listentothispartanddecidewhichwordsthespeakerwillstress.Ihavenoidea.Itcouldn’tbeworse.It’sabsolutelyhopeless.Suggestedanswers:Ihavenoidea.Itcouldn’tbeworse.It’sabsolutelyhopeless.4.Askstudentstocompletethesentencesindividually,andthencheckwithapartner.Afterthat,asksomepairstosharetheiranswerswiththewholeclass.(Showthefollowingonthescreen.)Completethesentencesusingtheaboveexpressions.1.A:Weneedtoplantmoretrees.B:_____________Thetrafficinthiscityjustdoesn’tmove.3.A:Peopledon’tcareenoughabouttheenvironment.B:_____________Ican’tseeanything.There’ssandeverywhere.Suggestedanswers:1.Icouldn’tagreewithyoumore./Ithinkyou’reabsolutelyright.2.Itcouldn’tbeworse./It’sabsolutelyhopeless.3.Icouldn’tagreewith