高考英语总复习 语法专项 名词性从句课件 新人教版.ppt

名词性从句 一 名词性从句的连接词1 连接词that whether和if 1 whether与if的用法比较二者均可作 是否 讲 都可以引导名词性从句 引导宾语从句时可以互换 idon tknowwhether ifhe llattendthemeeting 在下列情况下 常用whether 不用if whether引导从句可以放于句首 whetherhecomesornotmakesnodifference whether可引导表语从句和同位语从句 if不可 thequestioniswhetheritisworthtrying thequestionwhetherheshouldjointheteamhasnotbeendecidedupon whether可以作介词宾语 if则不可 ihaven tsettledtheproblemofwhetheri lllendhimthemoney whether后可以加不定式 if不可 hedidn tknowwhethertogetmarriedortowait 可以用whether or引导让步状语从句 意为 无论 不论 if则不可 whetheritrainsorsnows idon tcare 2 连接代词引导名词性从句的连接代词有 who whom whose what which whatever whichever whoever 连接代词在句中既起连接作用 同时又充当主语 宾语 定语 表语等成分 3 连接副词引导名词性从句的连接副词有 when where how why 连接副词在句中既是连接词 又作状语 二 主语从句1 主语从句在复合句中充当主语 大多数主语从句都可以用it作形式主语而把主语从句置于句尾 2 that引导主语从句时可用it作形式主语 that不可省 what引导的主语从句表示 的东西 时 一般不用it作形式主语 whatever whoever whichever一般也不用it作形式主语 thatshewillsucceediscertain itiscertainthatshewillsucceed whatheneedsismoreexperience 1 it 系动词 形容词 necessary right likely unlikely wrong important certain clear obvious strange normal等 that从句itiscertainthatmostofthefarmershavebroughtinmoremoneybyallmeans 2 it be 名词 短语 apity ashame goodnews afact anhonour awonder nowonder等 that从句it snowonderthatyou veachievedsomuchsuccess 3 it be 过去分词 said told heard reported decided suggested advised ordered remembered thought considered well known announced等 that从句itissaidthattheprofessorhasalreadysucceededincarryingouttheexperiment 4 it 特殊动词 seem appear happen matter that从句ithappenedtomethatihadbeenawaywhenhecalled 注意 1 在 itisnecessary important strange natural that从句 结构中 从句常用 should 动词原形 形式 2 在 it be suggested advised ordered requested insisted required that从句 结构中 that从句应用 should 动词原形 三 宾语从句1 动词的宾语从句 1 大多数动词 hope tell say等 可以带宾语从句 weallexpectthattheywillwin formembersoftheirteamarestronger idon tthinkyouareright idon tsupposehecares doeshe 2 动词find feel think consider make believe等后有宾语补足语时 则需要it作形式宾语而将that宾语从句后置 ithinkitnecessarythatwetakeplentyofboiledwatereveryday 3 有些动词带宾语从句时习惯上需要在宾语从句前加it 这类动词 词组 有hate enjoy like love dislike seeto等 ihateitwhentheytalkwiththeirmouthsfull 2 一般情况下介词后只能用wh 类连接词引导宾语从句 wearetalkingaboutwhetherweadmitstudentsintoourclub 注意 1 where引导的从句有时也可用作介词的宾语 wecouldseethetemplequiteclearlyfromwherewelived 2 that引导的从句作介词的宾语是很少有的 只有在except in but等介词后偶尔可能用到 yourcompositionisquitegoodexceptthattheorganizationisabitloose 3 sure certain glad pleased happy surprised等表示 情感 的形容词后也可带宾语从句 i msurethattheywillmakeitinspiteoftheterribleweather 四 表语从句1 主句的主语是idea advice suggestion order request requirement等名词时 表语从句的谓语应用虚拟语气 即 should 动词原形 的形式 hissuggestionisthatwe should changeourcourse 2 主语为名词reason时 表语从句中的连接词要用that 而不用why或because thereasonforsuchaseriousaccidentisthatthedriverwastoocarelessanddranktoomuch 3 because asif asthough as like等连接词也可引导表语从句 hehasheartdisease thatisbecausehehasbeensmokingtoomuch 五 同位语从句同位语从句是用以解释说明某一名词内容和实质的从句 1 能接同位语从句的名词有 belief fact hope idea doubt news conclusion suggestion problem order answer decision explanation information thought等 2 同位语从句一般用that引导 但也可以用连接代词 what which who 连接副词 when where why how 或whether引导 ihavenoideawhathashappenedtohim 3 有时同位语从句不紧跟在它所说明的某个名词后 而是被别的词隔开 thestorygoesthatwilliamtelldidkillthekingwiththatsword 六 名词性从句的几个难点1 that通常不可省略的四种情况 1 引导主语从句 that置于句首时不可省略 thathefailedintheexammadehisparentsdisappointed 2 当一个句子有两个或多个并列的宾语从句时 引导第二个和以后几个从句的that不可省略 iwished that wecouldgosightinginhangzhouthissummerandthatwecouldbuysomebooksonourwaybackinshanghai 3 在由it作形式宾语 that引导的宾语从句中 that也不可省略 hehasmadeitclearthathewouldn tagreetotheplan 4 引导表语从句和同位语从句时 that也不可省略 2 what与that的区别 what在从句中充当一定成分并且具有特定含义 的人 地方 东西等 that只起引导作用 在主语从句中不充当任何成分并且也没有含义 whathesaidwastrue thathecamelatemadetheteacherangry 用适当的连接词填空1 theemployersoftengivethejobto theybelievehasworkexperiencewithastrongsenseofduty 2 lifebeganontheearthisoneofthebiggestpuzzlestoscientists 3 whatareyouworryingabout itis thereisanychanceofbeinginfectedbya h1n1 virus 4 afterafive hourdrive theyreached theythoughtwastherightplace theyhadbeendreamingof 5 somepeoplebelieve hashappenedbeforeorishappeningnowwillrepeatitselfinthefuture 6 exactly thepotatowasintroducedintoeuropeisuncertain butitwasprobablyaround1565 7 whatmadehersoupset sh