Unit2 section A 4a-4c

Unit2Ithinkthatmooncakesaredelicious！,人教九年级英语,SectionA（4a-4c）,课前预习,Objectclauseswiththat,ifandwhether,（一）宾语从句,GrammarFocus（一）,GrammarFocus,一、宾语从句的概念,在句子中起宾语作用的从句叫做宾语从句。WeknowMrGreenteachesEnglish.Sheaskediftheseanswerswereright.,GrammarFocus,二、宾语从句三要素,宾语从句三要素,引导词,that+陈述句,ifwhether+一般疑问句,特殊疑问词+特殊疑问句,时态,主句为一般现在时,主句为一般过去时,一般过去时过去将来时过去进行时过去完成时,语序,宾语从句的语序都为陈述句语序,从句客观真理时态不变,从句可为任何时态,GrammarFocus,（1）由that引导的宾语从句,注：that在句中无词汇意义，在从句中不充当成分，在口语当中往往省略。,Objectclauseswiththat,知识拓展,a.根据汉语句子的意思完成下列英语句子。,.我认为玛丽不回来了。IdontthinkMary_.山姆跟我说他准备去上海。Samtoldmethathe_forShanghai.我想知道今天晚上还有没有去北京的火车。Iwanttoknow_thereisatraintoBeijing.,will,come,was,leaving,if/whether,GrammarFocus,1）.if和whether引导宾语从句时，作“是否”讲，一般情况下，二者没有区别，可以换用。但if常用于口语中，whether比较正式。例：Millieaskedif/whetherhelikedthissweater.米莉问他是否喜欢这件羊毛衫。Thefishermanwantstoknowif/whetheritwillrain.渔民想知道天是否会下雨。,Objectclauseswithifandwhether,（2）由if/whether引导的宾语从句,GrammarFocus,2）.if和whether引导宾语从句时，要注意宾语从句三要素，即连词、语序和时态。由于if和whether连接的是一般疑问句，因此要注意把从句语序改为陈述句语序。例：DoesMrZhaoliveinRoom208?Couldyoutellme?Couldyoutellmeif/whetherMrZhaolivesinRoom208?,GrammarFocus,3）.if和whether的区别二者在下列几种情况下不能换用：.宾语从句置于句首表示强调时，应用whether，不用if。例：Whetherthisistrueornot,Icantsay.这是否对，我不能说。,.宾语从句与ornot直接连用时，应用whether，不能用if。例：Idontknowwhetherornothewillcometomorrow.我不知道他明天是否来。,GrammarFocus,.与动词不定式连用时，只能用whether。例：ShecantdecidewhethertogotoAmerica.她不能决定是否去美国。.从句作介词宾语时，只能用whether。例：IworryaboutwhetherIhurtherfeeling.我担心是否伤了她的感情。,GrammarFocus,.宾语从句的谓语动词是否定形式时，只能用if，不能用whether。例：Tomwantstoknowifhewontcomeheretomorrow.汤姆想知道他明天是否不来这儿。.if意为“假如，如果”时，可以引导条件状语从句，而whether没有这个用法。例：IfSimoncomesheretomorrow,Illcallyou.假如西蒙明天来这儿，我将打电话告诉你。,GrammarFocus,学习宾从三注意，时态语序和连词。时态主从要呼应：主句若为现在时，从句时态随句意；主句若为过去时，从句时态变过去；宾从若是表真理，时态不变无质疑。语序要用陈述序，切莫照搬疑问句。That连接陈述句，省与不省要注意。从句若表“是否”时，if/whether要慎记。特殊问句作宾语，仍用原来疑问词。三个问题需牢记，切莫丢东忘了西。,宾语从句歌,练一练,a.IdontknowifMr.Wang_onafieldtrip.Ifhe_onafieldtriptomorrow,pleasecallme.A.goes;willgoB.willgo;goesC.willgo;willgoD.goes;goesb.SheaskedmeifIknew_.A.whosepenwasitB.whosepenitwasC.whosepenitisD.whosepenisit,B,B,练一练,c.Theywonderediftheteacher_usEnglishthenextterm.A.wouldteachB.hadtaughtC.willteachD.taughtd.Theboyasked_anynoisefromoutside.A.whetherhadIheardB.whetherIhadheardC.whetherhaveIheardD.whetherIhaveheard,A,B,练一练,e.Ihaventdecide_Illgooutorstayathome.A.ifB.whenC.whyD.whetherf.Iwanttoknow_helovesyou.A.thatB.whatC.ifD.who,D,C,练一练,g.把下列句子改为宾语从句的复合句。.Hesaid,“IhavebeentoAmerica”.Hesaid_toAmerica.Isthereahotelnearhere?Doyouknow?Doyouknow_ahotelnearhere?.Whatsportdoyoulikebest?Couldyoupleasetellme?Couldyoupleasetellme_?,thathehadbeen,if/whetherthereis,whatsport,youlikebest,课前预习,用来表达喜、怒、哀、乐等强烈感情的句子叫感叹句。感叹句一般用what或how引导，句末用感叹号。what修饰名词，how修饰形容词或副词。,（二）感叹句,GrammarFocus（二）,GrammarFocus,what引导的感叹句:1)What+a/an+adj.+可数单数(+主谓语)!例：Whatabraveboy(Tomis)!Whatanexcellentidea(itis)!2)What+adj.+可数名词复数(+主谓语)!例：Whatbeautifulpictures(theyare)!3)What+adj.+不可数名词(+主谓语)!例：Whatdeliciousfood(itis)!,GrammarFocus,how引导的感叹句：How+adj./adv.+主语+谓语!例：Howhappythechildrenwere!Howcarefullyheisreading!注意：一般情况下，以what和how开头的感叹句可以相互转换，转换后意义不变。例：Whatatallbuildingitis!=Howtallthebuildingis!,练一练,h.根据句意选出恰当的一项填空。._(What/Whata)deliciouschickenwearehaving!._(What/How)warmitisintheclassroom!._(What/Whata)niceshirtyoubought!._(What/How)fasttheyoungmaniswalking!,What,How,Whata,How,练一练,i.将下列句子改为感叹句。.Thegirlisveryclever._thegirlis!.Itisawonderfulexperience._wonderfulexperienceitis!.Thewindisblowingstrongly._thewindisblowing!.Thenewsisexciting._newsitis!,Howclever,Whata,Howstrongly,Whatexciting,1.think/LanternFestival/beautifulIthinkthattheLanternFestivalisbeautiful.2.dontknow/whether/he/comehome/forthefestival_3.believe/WaterFestival/most/fun_,4aWritesentencesusingthewordsgiven.,Idontknowwhetherhewillcomehomeforthefestival.,IbelievethattheWaterFestivalisthemostfun.,Practice,4.wonder/if/mooncakes/delicious_5.how/exciting/races_6.what/interesting/city_,Jennywondersifthemooncakesaredelicious.,Howexcitingtheracesare!,Whataninterestingcity(itis)!,Practice,4bReadthepassagebelowandunderlinetheobjectiveclauses.IfpossiblewriteyourownsentencesaboutMothersDayandFathersDayusingobjectiveclauses.,DearXiaYu,DoyouknowthattherearetwospecialdaysforparentsinAmerica?OneisMothersDayonthesecondSundayofMayandtheotherisFathersDayonthethirdSundayofJune.Onthesetwodays,Americanchildrenoftengivegiftstotheirparentsortakethemoutforlunch,Practice,ordinner.Commongiftsareflowersandcardsformothersandshirtsortiesforfathers.IheardthatitisbecomingmoreandmorepopulartocelebrateMothersDayandFathersDayinChina.Iwonderifchildrenovertherealsogivesimilargiftstotheirparents.Ibelievethattherearemanywaystoshowourlove.Actually,wedonthavetospendalotofmoney.Itisalsoagoodideatohelpparentstodosomethinginstead.June,Practice,课文解析,1.Commongiftsareflowersandcardsformothersandshirtsortiesforfathers.普遍的礼物是送花和卡片给妈妈，送衬衫或领带给爸爸。,（1）tien.领带（可数）复数形式：ties例：Iboughtatieformyfatheryesterday.昨天我买了条领带送给爸爸。,（2）tiev.系，捆，与to连用例：Pleasetieyourshoes.请系上鞋带。,课文解析,2.Actually,wedonthavetospendalotofmoney.事实上，我们不必花很多钱。haveto意为“必须；不得不”，强调由于客观因素主语不得不做某事，有人称和时态的变化，其后跟动词原形。例：Becausehehadnomoney,hehadtodropoutofschool.因为没有钱，他不得不辍学。,知识拓展,haveto与musthaveto:“必须；不得不”，表示客观需要，有人称、数、时态的变化。donthaveto表示“不必”must:“必须;一定”表示说话人主观上的看法，must只有一种形式。mustnt表示“禁止”例：Youdonthavetotellhimaboutit.你不必把这件事告诉他。例：Youmustnttellhimaboutit.你一定不要把这件事告诉他。,课文解析,(2)spendv.意为“用，花”常用句型为：spendsom