湖南省古丈县古阳中学九年级英语全册 Unit 6 When was it invented Period 4教学案 （新版）人教新目标版VIP专享VIP免费

Unit6WhenwasitinventedPeriod4课题名主备人课时Period4(SectionAGrammarFocus-4c)学习目标1)学习掌握下列词汇：fridge,low,somebody,translate,lock,earthquake,sudden,allofasudden,biscuit,cookie,instrument2）进行一步复习巩固学习SectionA部分所学的生词和词组。3）进一步学习运用一般过去时态的被动语态。4)掌握主动语态变被动语态的方法，并通过不同方式的练习，来熟练运用。学习重点1)学习生词fridge,low,somebody,translate,lock,earthquake,sudden,allofasudden,biscuit,cookie,instrument2)复习巩固SectionA部分所学的生词和词组，达到熟练运用的目标。学习难点1)一般过去时态的句子变为被动语态。2)综合运用所学的知识进行练习运用。教学步骤教学过程二次备课I.温故知新Showsomepicturesofsomeinventionsandaskthestudentstohaveafreetalkaboutsomeinventions.Whatdoyouthinkisthemosthelpfulinvention?Whenwasitinvented?Whowasitinventedby?II.兴趣导入Workinpairs.Lookat1b.StudentAcoverthedates.StudentB,askstudentAwhenthethingsinthepicturewereinvented.Thenchangerolesandpracticeagain.2.Askstudentstomakesimilardialoguesusingthethingsaroundthem.III.感受新知1.Askthestudentstomakealistoffivehelpfulinventionsandfiveannoyinginventionsontheirown,movearoundtheroomtoofferhelpasneeded.2.Letthestudentswhowouldliketosharetheiranswerstoreadtotheclass.IV.梳理巩固PracticeWorkon4a:1.TellSstoreadthesentencesin4aandrewritethesentencesusingthepassivevoice.2.认真阅读每个句子，根据上下文确定空格处应填的意思。3.逐句进行分析推敲，然后分析句子的时态及语态，用适当的形式填空。4.最后，通读一遍所有句子，进行综合理解，看句子的意思是否通顺，合理。5.ChecktheanswerswiththeSs.Workon4c:Decidewhetheractiveorpassiveformsshouldbeusedinthesesentences.Writethecorrectformsintheblanks.1.先通读小短文，了解大意。2.逐句分析每一句话的意思，确定句子主语和谓语动词之间主动或被动关系。3.结合句子的时态，填上正确的形式。4.复读短文，看是否通顺。5.ChecktheanswersV.拓展探究主动语态变被动语态应注意的问题1.有些短语动词相当于及物动词，变为被动句时介词或副词不能去掉。2.含有双宾语的主动句变为被动句时，通常把指“人”的间接宾语变为主语，指“物”的直接宾语保留不变；如果把指物”的直接宾语变为主语，则在间接宾语前加to或for。Ane-dictionarywasgiventomeyesterday.3.主动句中感官动词see/hear/watch/feel等和使役动词make/let/have等后跟省略to的动词不定式，变为被动语态时应加上不定式符号to。Isawaheavymanenterthehouse.Aheavymanwasseentoenterthehouse.4.系动词、不及物动词或某些短语动词（happen,takeplace,cometrue,fallasleep…）没有被动语态。WhathappenedtoMr.Brown?布朗先生发生了什么事？课堂检测补全下列主动句变被动句。1.Jennyputherclothesinthesuitcaselastnight.Herclothes________inthesuitcaselastnight.2.ThetwinssanganEnglishsongthatday.AnEnglishsong____________bythetwinsthatday.3.Didtheybuildabridgehereayearago?____abridge____herebythemayearago?4.Theysoldoutthelightgreendressesyesterday.Thelightgreendresses______________out.教学反思