英语四大从句完整讲解版.ppt

名词性从句名词性从句v主语从句主语从句v宾语从句宾语从句v表语从句表语从句v同位语从句同位语从句信息安全技术信息安全技术主语从句主语从句v? ?v连接词连接词信息安全技术信息安全技术uthatthat引导的主语从句：引导的主语从句：v1. 1. It isIt is + + adj.adj. (obvious, true, natural, surprising, wonderful, funny, possible, certain, (obvious, true, natural, surprising, wonderful, funny, possible, certain, ect.) + ect.) + that that 从句从句vIt isIt is certaincertain thatthat she will do well in her exam.she will do well in her exam.vthat that 是否可以省略是否可以省略? ?v? ?vThatThat she will do well in her exam she will do well in her exam is is certain.certain. v( )( )vthat that 在句首时绝对不能省在句首时绝对不能省. .v口语中口语中thatthat引导真正的主语时引导真正的主语时,that,that可省可省. .v 信息安全技术信息安全技术v2. 2. It isIt is + + 名词词组名词词组（（no wonder, a good thing, a pity, no surprise, ect.) + no wonder, a good thing, a pity, no surprise, ect.) + that that 从从句句vIt’sIt’s a pitya pity thatthat we can’t go.we can’t go.vthat that 是否可以省略是否可以省略? ?v? ?vThatThat we can’t go we can’t go is is a pity.a pity. v ( ) ( )vthat that 在句首时绝对不能省在句首时绝对不能省. .v口语中口语中thatthat引导真正的主语时引导真正的主语时,that,that可省可省. .v 信息安全技术信息安全技术3. It is + 过去分词过去分词（（ said, reported, thought, expected, decided, announced, arranged, ect.) + that 从句从句vIt isIt is decideddecided thatthat the meeting has been put off till next Monday.the meeting has been put off till next Monday.vthat that 是否可以省略是否可以省略? ?v? ?vthat that 在句首时绝对不能省在句首时绝对不能省. .v口语中口语中thatthat引导真正的主语时引导真正的主语时,that,that可省可省. .v vThatThat the meeting has been put off till next Monday the meeting has been put off till next Monday is is decided.decided. v( )( )信息安全技术信息安全技术主语从句主语从句uthat that 引导的主语从句引导的主语从句vthat that 置于句首时绝对不能省置于句首时绝对不能省, ,v口语中口语中thatthat引导真正的主语时引导真正的主语时,that,that可省可省. .信息安全技术信息安全技术 ________ the meeting will be given is still a problem. It is doubtful ___________ he will come here.vWhetherWhethervwhether/ ifwhether/ ifv主语从句放于句首，只能用主语从句放于句首，只能用whetherwhetherv当当it it 作形式主语，主语从句放在句末时用作形式主语，主语从句放在句末时用whether whether 或或if if 均可。

均可v翻译翻译: :uwhether / ifwhether / if引导的主语从句引导的主语从句v明天是否开会仍然是个问题明天是否开会仍然是个问题. .v他是否会来这还令人怀疑他是否会来这还令人怀疑. .v? ?v? ?信息安全技术信息安全技术主语从句主语从句uthat that 引导的主语从句引导的主语从句uwhether / ifwhether / if引导的主语从句引导的主语从句vthat that 一般不能省一般不能省v主语从句放于句首，只能用主语从句放于句首，只能用whetherwhetherv当当it it 作形式主语，主语从句放在句末时用作形式主语，主语从句放在句末时用whether whether 或或if if 均可信息安全技术信息安全技术u特殊疑问词引导的主语从句特殊疑问词引导的主语从句vIt makes no difference _______ we shall have the meeting.It makes no difference _______ we shall have the meeting.vwherewherevIt has not been decided yet ____ will president over the meeting.It has not been decided yet ____ will president over the meeting.vwhowho信息安全技术信息安全技术主语从句主语从句uthat that 引导的主语从句引导的主语从句uwhether / ifwhether / if引导的主语从句引导的主语从句u特殊疑问词引导的主语从句特殊疑问词引导的主语从句信息安全技术信息安全技术uwhat, wh- ever what, wh- ever 引导的主语从句引导的主语从句vWhat What they need is a good textbook.they need is a good textbook.vWhoeverWhoever did this job must be rewarded. did this job must be rewarded.v他们需要的是一本好课本他们需要的是一本好课本. .v无论谁干了这件工作一定要得到酬谢无论谁干了这件工作一定要得到酬谢. .v翻译翻译: :信息安全技术信息安全技术主语从句主语从句uthat that 引导的主语从句引导的主语从句uwhether / ifwhether / if引导的主语从句引导的主语从句u特殊疑问词引导的主语从句特殊疑问词引导的主语从句uwhat, wh-ever what, wh-ever 引导的主语从句引导的主语从句信息安全技术信息安全技术宾语从句宾语从句v? ?v连接词连接词信息安全技术信息安全技术请说出以下句子that 是否可省略Do you know that he has joined the army?v( ) ( ) vI’m sure I’m sure thatthat he will pass the exam. he will pass the exam.v( ) ( ) vadj. adj. 的宾语的宾语vWe think it highly probable We think it highly probable thatthat he is dead. he is dead.v由由it it 作形式宾语时，作形式宾语时，that that 引导的真正宾语中，引导的真正宾语中， that that 不可省略。

不可省略uthat that 引导的宾语从句：引导的宾语从句：信息安全技术信息安全技术宾语从句宾语从句uthat that 引导的宾语从句引导的宾语从句v一般可省一般可省v由由it it 作形式宾语时，作形式宾语时，that that 引导的真正宾语中，引导的真正宾语中， that that 不可省略不可省略信息安全技术信息安全技术I don’t care _______ he doesn’t come.I don’t care _____________ he comes or not.I don’t care _______ or not he comes.I don’t know _______ to go there.It depends on _________ you can do the work well.vwhetheruwhether / ifwhether / if引导的宾语从句引导的宾语从句vifvwhether / ifvwhethervwhetherv宾语从句为否定句时用宾语从句为否定句时用if ifv介词后只能用介词后只能用whetherwhethervwhether + to dowhether + to dovwhether or notwhether or notvwhether / ifwhether / if…or not ( or not ( 口语中有时用口语中有时用 if )if )信息安全技术信息安全技术宾语从句宾语从句uthat that 引导的宾语从句引导的宾语从句uwhether / ifwhether / if引导的宾语从句引导的宾语从句信息安全技术信息安全技术u特殊疑问词引导的宾语从句特殊疑问词引导的宾语从句vI can’t imagine I can’t imagine how how he did it.he did it.vWe are worrying We are worrying aboutabout what what we should do next.we should do next.v作介词宾语作介词宾语v陈述语序陈述语序信息安全技术信息安全技术宾语从句宾语从句uthat that 引导的宾语从句引导的宾语从句uwhether / ifwhether / if引导的宾语从句引导的宾语从句u特殊疑问词引导的宾语从句特殊疑问词引导的宾语从句信息安全技术信息安全技术uwhat, wh-ever what, wh-ever 引导的宾语从句引导的宾语从句vWe shall not forget We shall not forget when ( = the time when )when ( = the time when ) the meeting will open. the meeting will open.vShe will give She will give whoever (= anyone who)whoever (= anyone who) needs help a warm support. needs help a warm support.vShe walked up to She walked up to where (= the place where)where (= the place where) he stood. he stood.信息安全技术信息安全技术宾语从句宾语从句uthat that 引导的宾语从句引导的宾语从句uwhether / ifwhether / if引导的宾语从句引导的宾语从句u特殊疑问词引导的宾语从句特殊疑问词引导的宾语从句uwhat, wh-ever what, wh-ever 引导的宾语从句引导的宾语从句信息安全技术信息安全技术表语从句表语从句v? ?v连接词连接词信息安全技术信息安全技术 My decision is that all of us are to start at 6 o’clock tomorrow morning.uthat that 引导的表语从句引导的表语从句vthat that 是否可以省略是否可以省略? ?v? ?信息安全技术信息安全技术表语从句表语从句uthat that 引导的表语从句引导的表语从句信息安全技术信息安全技术uwhether / ifwhether / if引导的表语从句引导的表语从句vThe problem is The problem is whetherwhether the meeting will be given. the meeting will be given.v此时的此时的whether whether 是否可以用是否可以用if if 替换替换? ?v? ?信息安全技术信息安全技术表语从句表语从句uthat that 引导的表语从句引导的表语从句uwhether whether 引导的表语从句引导的表语从句信息安全技术信息安全技术u特殊疑问词引导的表语从句特殊疑问词引导的表语从句vMy question My question howhow I shall get in touch with him had not been I shall get in touch with him had not been answered.answered.信息安全技术信息安全技术表语从句表语从句uthat that 引导的表语从句引导的表语从句uwhether whether 引导的表语从句引导的表语从句u特殊疑问词引导的表语从句特殊疑问词引导的表语从句信息安全技术信息安全技术uWhat, wh-ever What, wh-ever 引导的表语从句引导的表语从句vThis is This is wherewhere our problem lies. our problem lies.信息安全技术信息安全技术表语从句表语从句uthat that 引导的表语从句引导的表语从句uwhether whether 引导的表语从句引导的表语从句u特殊疑问词引导的表语从句特殊疑问词引导的表语从句uwhat, wh-ever what, wh-ever 引导的表语从句引导的表语从句信息安全技术信息安全技术uas if/ as though, because, why as if/ as though, because, why 引导的表语从句引导的表语从句vIt looked It looked as ifas if it was going to rain. it was going to rain.vThat was That was why why I asked for three days’ leave.I asked for three days’ leave.vThat’s That’s because because he didn’t work hard enough.he didn’t work hard enough.vbecause because 引导的表语从句引导的表语从句, ,主语能不能是主语能不能是reason reason 或或cause?cause?v? ?vbecause because 是否可以换成是否可以换成since, as since, as 引导表语从句引导表语从句? ?信息安全技术信息安全技术表语从句表语从句uthat that 引导的表语从句引导的表语从句uwhether whether 引导的表语从句引导的表语从句u特殊疑问词引导的表语从句特殊疑问词引导的表语从句uwhat, wh-ever what, wh-ever 引导的表语从句引导的表语从句uas if/ as though, because, why as if/ as though, because, why 引导的表语从句引导的表语从句信息安全技术信息安全技术同位语从句同位语从句v? ?v连接词连接词信息安全技术信息安全技术uthat that 引导的同位语从句引导的同位语从句vThere’s a feeling in me There’s a feeling in me thatthat we’ll never know what a UFO is – not we’ll never know what a UFO is – not ever.ever.v连词连词that that 引导同位语从句时引导同位语从句时, , 应在某些抽象名词之后应在某些抽象名词之后, ,如如: fact, hope, desire, : fact, hope, desire, thought, suggestion, idea, news, problem, possibilitythought, suggestion, idea, news, problem, possibility等等, , 对前面的名词起补充说对前面的名词起补充说明的作用明的作用. .v? ?vthat that 在同位语从句中是否做成分在同位语从句中是否做成分? ?vthat that 是否能省略是否能省略? ?信息安全技术信息安全技术同位语从句同位语从句uthat that 引导的同位语从句引导的同位语从句信息安全技术信息安全技术uwhether whether 引导的同位语从句引导的同位语从句vI have no idea ________ the meeting will be given.I have no idea ________ the meeting will be given.vwhetherwhetherv? ?v此处是否可以用此处是否可以用if?if?v我不知道会是否要开我不知道会是否要开. .信息安全技术信息安全技术同位语从句同位语从句uthat that 引导的同位语从句引导的同位语从句uwhether whether 引导的同位语从句引导的同位语从句信息安全技术信息安全技术u特殊疑问词引导的同位语从句特殊疑问词引导的同位语从句vMy question My question howhow I shall get in touch with him had not been answered. I shall get in touch with him had not been answered.信息安全技术信息安全技术同位语从句同位语从句uthat that 引导的同位语从句引导的同位语从句uwhether whether 引导的同位语从句引导的同位语从句u特殊疑问词引导的同位语从句特殊疑问词引导的同位语从句信息安全技术信息安全技术uwhat, wh-ever what, wh-ever 引导的同位语从句引导的同位语从句vI gave the girl a big doll, exactly I gave the girl a big doll, exactly what what she longed to have.she longed to have.信息安全技术信息安全技术同位语从句同位语从句uthat that 引导的同位语从句引导的同位语从句uwhether whether 引导的同位语从句引导的同位语从句u特殊疑问词引导的同位语从句特殊疑问词引导的同位语从句uwhat, wh-ever what, wh-ever 引导的同位语从句引导的同位语从句信息安全技术信息安全技术Revision名名词词性性从从句句v主语从句主语从句v宾语从句宾语从句v表语从句表语从句v同位语从句同位语从句uthat that 引导的主语从句引导的主语从句uwhether / ifwhether / if引导的主语从句引导的主语从句u特殊疑问词引导的主语从句特殊疑问词引导的主语从句uwhat, wh-ever what, wh-ever 引导的主语从句引导的主语从句信息安全技术信息安全技术主语从句主语从句uthat that 引导的主语从句引导的主语从句uwhether / ifwhether / if引导的主语从句引导的主语从句u特殊疑问词引导的主语从句特殊疑问词引导的主语从句uwhat, wh-ever what, wh-ever 引导的主语从句引导的主语从句信息安全技术信息安全技术宾语从句宾语从句uthat that 引导的宾语从句引导的宾语从句uwhether / ifwhether / if引导的宾语从句引导的宾语从句u特殊疑问词引导的宾语从句特殊疑问词引导的宾语从句uwhat, wh-ever what, wh-ever 引导的宾语从句引导的宾语从句信息安全技术信息安全技术表语从句表语从句uthat that 引导的表语从句引导的表语从句uwhether whether 引导的表语从句引导的表语从句u特殊疑问词引导的表语从句特殊疑问词引导的表语从句uwhat, wh-ever what, wh-ever 引导的表语从句引导的表语从句uas if/ as though, because, why as if/ as though, because, why 引导的表语从句引导的表语从句信息安全技术信息安全技术同位语从句同位语从句uthat that 引导的同位语从句引导的同位语从句uwhether whether 引导的同位语从句引导的同位语从句u特殊疑问词引导的同位语从句特殊疑问词引导的同位语从句uwhat, wh-ever what, wh-ever 引导的同位语从句引导的同位语从句信息安全技术信息安全技术Bye。