如题所述
名词性从句引导词的基本用法
下表对高考中常见的名词性从句的引导词进行了总结:
名词性从句的引导词引导词是否在名词性从句中充当成分的情况
连接代词: what, which, who, whom, whose
连接副词: when, where, why, how
what, which在从句中作主语、 宾语、 表语或定语; who在从句中作主语、 表语; whom在从句中作宾语; whose在从句中作定语; when, where, why, how在从句中分别作时间状语、 地点状语、 原因状语、 方式状语
连词that否
连词whether, if否
名词性从句的引导词在高考中的基本用法详见下面的总结:
1. 引导特殊疑问句的疑问词在转为引导名词性从句时, 即成为连接代词(主要包括what, which, who, whom, whose)或者连接副词(主要包括when, where, why, how)。注意体会如下例句: Choose which you like best. 选你最喜欢的。// Who has taken away my bag is unknown. 谁拿走了我的包还不知道。// Have you decided whom you are to nominate as your candidate? 你们是否已经决定提名谁做候选人了?// He asked when Mr. Gilbert would be allowed to go home. 他问什么时候可以允许吉尔伯特先生回家。// Where we can look up his address is still a problem. 我们在哪儿可以查到他的地址还是个难题。// Why he did that wasn’t quite clear. 他为什么做那件事还不十分清楚。// How they will solve the serious problem has not been decided. 他们将怎样解决这个严重问题还没有决定。
以下两种特殊情况要给予特别关注:
(1) what作连接代词引导的名词性从句既可以表示一个问“什么……?”的问题, 也可以表示相当于“名词/代词+关系代词引导的定语从句”结构的意思, 这种特殊用法在语法上被称作“关系代词型的what”, 注意体会如下例句:He is not what (=the person that) he was a few years ago. 他不是几年前的他了。// This is what (=the place that) they call Salt Lake City. 这就是他们称作盐湖城的地方。// What (=the place that) is now the North Sahara Desert was once a civilized world. 现在的北部撒哈拉沙漠曾是一个文明世界。// Our income is now double what (=the income that) it was ten years ago. 我们现在的收入是十年前的两倍。// The color of the flower is different from what (=the color that) it was in the morning. 花朵(现在的)颜色与它早上的颜色不同。
(2) 带’ever后缀的疑问词除引导让步状语从句之外, 还可以引导名词性从句(“no matter+疑问词”的结构只能引导让步状语从句, 不可以引导名词性从句), 注意体会以下例句: Whoever wants to see this film can go with us tonight.无论谁想看这部电影, 今晚都可以和我们一起去。// You can give the ticket to whomever you like. 你可以把票给任何你想给的人。// All the books are here. You may borrow whichever (book) you like. 所有的书都在这儿, 你愿借哪本就借哪本。// I’ll do whatever you ask me to do. 你叫我做什么, 我就做什么。
2. that引导名词性从句时后面接完整的陈述句, that只起引导名词性从句的作用而不充当该名词性从句中的具体成分; 引导宾语从句时that常可省略, 但引导主语从句、 表语从句、 同位语从句时that通常不被省略。例如:
She hoped (that) he would arrive on time. 她希望他按时到达。(宾语从句)
That she was chosen made us very happy. 她被选中了让我们很开心。(主语从句)
I have the belief that I will succeed. 我怀有必胜的信念。(同位语从句)
that, what引导名词性从句的区别在于: that在其引导的名词性从句中不充当任何成分, 在有的情况下可以省略; what需要在其引导的名词性从句中充当主语、 宾语、 表语或者定语, 而且引导名词性从句的what在任何情况下都不能省略。例如:
That he will succeed is obvious. 显然, 他会成功。(引导主语从句的that不在其中充当具体的句子成分)
What she told me is not true. 她所告诉我的都不是真的。(what在其引导的主语从句中作宾语)
3. whether与if均可以引导表示“是否”之意的名词性从句, 且whether与if均不在这种名词性从句中充当具体的句子成分。在引导宾语从句时whether与if一般可以互换, 但在引导主语从句、 表语从句、 同位语从句、 介词后的宾语从句、 放于句首的宾语从句或者名词性从句中包含or (not) 时通常只能用whether作引导词。注意体会下列例句: I don’t know if/whether I can help you. 我不知道我能否帮助你。(宾语从句)// Whether we can really help you, I don’t know yet. 我们是否真的能帮助你, 我还不知道。(位于句首的宾语从句)// The teacher worried about whether he had hurt the girl’s feelings. 老师为是否伤害了那女孩的感情而担心。(介词后的宾语从句)// The question is whether they can cooperate with us. 问题是他们能否与我们合作。(表语从句)// The question whether he should come himself or send a substitute must be decided upon. 他该亲自来还是派人替他来, 这个问题必须定下来。(同位语从句)// The little girl asked her father whether she should go to the party or not. 那女孩问她的父亲她应不应该参加这个晚会。(包含or not的宾语从句)
注意: 肯定形式的doubt后面通常接whether/if引导的宾语从句, 否定形式的doubt后面通常接that引导的宾语从句, 例如: I doubt whether it’s true. 我怀疑它是否是真实的。// I doubt if that was what he wanted. 我怀疑那是否是他所想要的。// I don’t doubt that you are honest. 我不怀疑你的诚实。// She never doubted for a moment that she was right. 她对自己是正确的这一点从不怀疑。
下表对高考中常见的名词性从句的引导词进行了总结:
名词性从句的引导词引导词是否在名词性从句中充当成分的情况
连接代词: what, which, who, whom, whose
连接副词: when, where, why, how
what, which在从句中作主语、 宾语、 表语或定语; who在从句中作主语、 表语; whom在从句中作宾语; whose在从句中作定语; when, where, why, how在从句中分别作时间状语、 地点状语、 原因状语、 方式状语
连词that否
连词whether, if否
名词性从句的引导词在高考中的基本用法详见下面的总结:
1. 引导特殊疑问句的疑问词在转为引导名词性从句时, 即成为连接代词(主要包括what, which, who, whom, whose)或者连接副词(主要包括when, where, why, how)。注意体会如下例句: Choose which you like best. 选你最喜欢的。// Who has taken away my bag is unknown. 谁拿走了我的包还不知道。// Have you decided whom you are to nominate as your candidate? 你们是否已经决定提名谁做候选人了?// He asked when Mr. Gilbert would be allowed to go home. 他问什么时候可以允许吉尔伯特先生回家。// Where we can look up his address is still a problem. 我们在哪儿可以查到他的地址还是个难题。// Why he did that wasn’t quite clear. 他为什么做那件事还不十分清楚。// How they will solve the serious problem has not been decided. 他们将怎样解决这个严重问题还没有决定。
以下两种特殊情况要给予特别关注:
(1) what作连接代词引导的名词性从句既可以表示一个问“什么……?”的问题, 也可以表示相当于“名词/代词+关系代词引导的定语从句”结构的意思, 这种特殊用法在语法上被称作“关系代词型的what”, 注意体会如下例句:He is not what (=the person that) he was a few years ago. 他不是几年前的他了。// This is what (=the place that) they call Salt Lake City. 这就是他们称作盐湖城的地方。// What (=the place that) is now the North Sahara Desert was once a civilized world. 现在的北部撒哈拉沙漠曾是一个文明世界。// Our income is now double what (=the income that) it was ten years ago. 我们现在的收入是十年前的两倍。// The color of the flower is different from what (=the color that) it was in the morning. 花朵(现在的)颜色与它早上的颜色不同。
(2) 带’ever后缀的疑问词除引导让步状语从句之外, 还可以引导名词性从句(“no matter+疑问词”的结构只能引导让步状语从句, 不可以引导名词性从句), 注意体会以下例句: Whoever wants to see this film can go with us tonight.无论谁想看这部电影, 今晚都可以和我们一起去。// You can give the ticket to whomever you like. 你可以把票给任何你想给的人。// All the books are here. You may borrow whichever (book) you like. 所有的书都在这儿, 你愿借哪本就借哪本。// I’ll do whatever you ask me to do. 你叫我做什么, 我就做什么。
2. that引导名词性从句时后面接完整的陈述句, that只起引导名词性从句的作用而不充当该名词性从句中的具体成分; 引导宾语从句时that常可省略, 但引导主语从句、 表语从句、 同位语从句时that通常不被省略。例如:
She hoped (that) he would arrive on time. 她希望他按时到达。(宾语从句)
That she was chosen made us very happy. 她被选中了让我们很开心。(主语从句)
I have the belief that I will succeed. 我怀有必胜的信念。(同位语从句)
that, what引导名词性从句的区别在于: that在其引导的名词性从句中不充当任何成分, 在有的情况下可以省略; what需要在其引导的名词性从句中充当主语、 宾语、 表语或者定语, 而且引导名词性从句的what在任何情况下都不能省略。例如:
That he will succeed is obvious. 显然, 他会成功。(引导主语从句的that不在其中充当具体的句子成分)
What she told me is not true. 她所告诉我的都不是真的。(what在其引导的主语从句中作宾语)
3. whether与if均可以引导表示“是否”之意的名词性从句, 且whether与if均不在这种名词性从句中充当具体的句子成分。在引导宾语从句时whether与if一般可以互换, 但在引导主语从句、 表语从句、 同位语从句、 介词后的宾语从句、 放于句首的宾语从句或者名词性从句中包含or (not) 时通常只能用whether作引导词。注意体会下列例句: I don’t know if/whether I can help you. 我不知道我能否帮助你。(宾语从句)// Whether we can really help you, I don’t know yet. 我们是否真的能帮助你, 我还不知道。(位于句首的宾语从句)// The teacher worried about whether he had hurt the girl’s feelings. 老师为是否伤害了那女孩的感情而担心。(介词后的宾语从句)// The question is whether they can cooperate with us. 问题是他们能否与我们合作。(表语从句)// The question whether he should come himself or send a substitute must be decided upon. 他该亲自来还是派人替他来, 这个问题必须定下来。(同位语从句)// The little girl asked her father whether she should go to the party or not. 那女孩问她的父亲她应不应该参加这个晚会。(包含or not的宾语从句)
注意: 肯定形式的doubt后面通常接whether/if引导的宾语从句, 否定形式的doubt后面通常接that引导的宾语从句, 例如: I doubt whether it’s true. 我怀疑它是否是真实的。// I doubt if that was what he wanted. 我怀疑那是否是他所想要的。// I don’t doubt that you are honest. 我不怀疑你的诚实。// She never doubted for a moment that she was right. 她对自己是正确的这一点从不怀疑。
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