扬中市第一中学九年级英语导学案9AUnit2Colours第五课时Grammar(Ⅱ)（新授课）主备人：张秀梅审核人：审批人：班级：_________姓名：_______【学习目标】学会运用if或whether引导的宾语从句。【学习重点、难点】学会运用if或whether引导的宾语从句。【学习过程】一、课前预习预习完成课本P27用if或whether引导宾语从句。二、课堂学习研讨语法讲解：◆if或whether引导的宾语从句⑴用if或whether引导宾语从句，此时从句部分的语义相当于一个一般疑问句，口语中常用if。如：Iwanttoknowif/whetherheisourteacher.我想知道他是不是我们的老师。⑵宾语从句的语序必须是陈述语序，即“连接词+主语+谓语+其他成分”。如：“DidMarycleantheclassroomyesterday?”MrHuisasking.→MrHuisasking_______/_______________________________theclassroomyesterday.⑶宾语从句中的人称代词要符合逻辑，有时需进行合理变化。如：Shewonders,“CanIkeepthebookforonemoreweek?”→Shewonders_______/_________________________keepthebookforonemoreweek.“Canyouhelpme?”sheasks.→Sheasks________/____________________________help________.⑷宾语从句的时态呼应：主句的谓语动词是现在时，从句的时态则无需变化；主句的谓语动词是过去时，直接引语变间接引语时，从句的谓语动词在时态上要作相应的变化。但若宾语从句表示的是客观事实、客观真理或谚（习）语，其谓语动词仍用一般现在时。Sheasked,“Willthebusarriveinfiveminutes?”→Sheasked________/____________________________________arriveinfiveminutes.MrGreenaskedus,“Doeslighttravelmuchfasterthansound?”→MrGreen________us______/____________________________muchfasterthansound.◆if与whether的区别：⑴引导主语从句、表语从句时不用if。______________wewillhaveameetingnextweekisnotdecided/hasnotbeendecided.Thequestionis______________wecangetthereontime.⑵在介词后引导宾语从句不用if。I’mthinkingabout___________we’llhaveameeting.我在考虑我们是否要开个会。⑶宾语从句置于句首时不用if。__________youhavemetGeorgebefore,Ican’tremember.⑷在discuss等动词的后面不用if。We’rediscussing__________we’llgoonapicnic.学校网址:http://www.jsyzyz.com/1扬中市第一中学九年级英语导学案⑸与or/ornot连用时不用if。Idon’tknow__________ornotyouwillgo.Heaskedme______________Iwantedtogotherebytrainorbybus.⑹当用if会引起歧义时不用if。Pleaseletmeknow__________youneedhelp.请告诉我你是否需要帮助。(若用if，还可理解为“如果你需要帮助，请告诉我。”)⑺在动词不定式前用whether不用if。Hedoesn’tknow__________togoornot.Hewaswondering______________togohomeorstayatschool.⑻当引导一个否定的宾语从句时，通常用if而不用whether。Sheaskedme_____________Tomdidn’tcome.她问我Tom是不是没来。Heaskedme______________Ihadn’tfinishedmyhomework.她问我是不是还没完成作业。三、课堂检测1.Hashebeenabroadbefore?Doyouknow?（合并成一个句子）Doyouknow_____________________________________abroadbefore?2.CantheyspeakFrench?Iwanttoknow.（同上）Iwanttoknow_______________________________________French.3.Doeshermotherworkinthathospital?Couldyoutellus?（同上）Couldyoutellus____________________________________________inthathospital?4.Willyougoonapicnicorstayathome?Mymotheraskedme.（同上）Mymotheraskedme________________________________goonapicnicorstayathome.5.Theteachertoldthechildren.Thesunrisesintheeastandsetsinthewest.（同上）Theteachertoldthechildren_______thesun________intheeastand________inthewest.6.Wehaven’tdecidedifwe’llputonaplay.（改为被动语态）______________________putonaplay_____________________________byus.四、作业布置㈠单项选择()1.Myteachersays________he’lltakeustohishome.A.whenB.ifC.howD.that()2.Idon’t...
