课件-全国-2016_九年级英语全册 Unit 2 I think that mooncakes are delicious Section A 4课件 （新版）人教新目标版.ppt

SectionAGrammarFocus-4cWordsreviewmooncakeIknowthattheWaterFestivalisreallyfun.1.that,if和whether引导的宾语从句名词性从句nounclause试比较：DoyouknowwhoisthefirstChineseastronaut(宇航员)?Ourteachertoldusthattheearthgoesaroundthesun.Pleasetellmewhereshehasgone.Idon’tknowifhewillcometonight.Let’sfindoutwhat’sontonight.注：that在句中无词汇意义，在从句中不能充当成分，在口语当中往往省略。a.在主+谓+it(形式宾语)+宾补+that从句(真正宾语)的句型中不省略.eg:Wemustmakeitclearthatwemeanwhatwesay.b.由连词and连接的两个由that引导的宾语从句中,第二个that不省略.eg:Hetoldme（that）hewouldcomeandthathewouldcomeontime.c.当that作介词except,in等宾语时e.g.Theybelieveinthatshemuststillbesingle.IknownothingabouthimexceptthatheislivinginBeijing.2.由从属连词whether,if引导的宾语从句1).whether和if都可以引导宾语从句eg:Idon’tknowwhetherornothewillcome.注意：如果ornot放在whether所引导的从句句尾，则可以用if来替换。Idon’tknowwhether/ifhewillcomeornot.eg:IworryaboutwhetherIhurtherfeeling.HeaskedmewhetherIwantedtogotherebytrainorbybus.他问我是想乘火车还是坐公共汽车去那里。注：whether和or一起还有“不管”之意,引导让步状语从句。Whetherhedrivesortakesthetrain,hewillbehereontime.不管开车来还是乘火车来，他都会准时到。e.g.WhetherhewillcomeIamnotsure.e.g.HeaskedmewhetherI’dmovetoNewYorkifIgotthejob.Pleaseletmeknowifyouneedhelp.如果你需要帮助请告诉我。或：请告诉我你是否需要帮助。对比：Pleaseletmeknowwhetheryouneedhelp.请告诉我你是否需要帮助。Idon’tknowifitwon'traintomorrow.我不知道明天是不是会下雨。2).引导主语从句置于句首时，只能用whethere.g.Whetherhecomesornotmakesnodifference.3).Whether可以引导表语从句和同位语从句，if不可以4).用在动词不定式之前时用whether不用if。Idon’tknowwhethertogothereatonce.我不知道是不是该立刻去那里。3.由连接代词Who,whom,whose,which,what和连接副词where,how,why,when引导的宾语从句当主句是一般现在时，宾语从句的时态不作限制，我们可以根据句子的意思来使用需要的任何一种时态。HewillgotoHongKong.Heissick.Heisreadingabook.Hehasfinishedhiswork.thesunismuchbiggerthanthemoon.主句时态DannysaysthathewilllearnEnglish.Doyouknowwherehecamefrom?PleasetellmehowIcangettothebusstation.宾语从句三要素学习宾从三注意，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。1.Tomsaid.Heisreadingabook.→2.Heasksme.Aretheyplayingagame?→3.Whereisthehospital?Hetoldme.→4.Whoboughtthepen?Hewondered.→Whocananswerthequestion？Thete