三大从句与动词不定式的转换
定语从句与非谓语动词的转换
定语从句和非谓语动词是高中阶段重要的两大语法项目。
定语从句的应用可以使语言表达更精确更生动,显得使用者具有较高的英语文化底蕴,但也是中学英语的难点语法项目,许多同学在学习和运用定语从句时,感到很难理解。
若将其简化,理解起来就比较简单了。
而非谓语动词的正确使用,就可以使定语从句的理解容易化,简单化,而且使语句简练、更有文采。
掌握二者的转换,有助于我们更好的理解其用法,并能够自如地运用。
下面我就着重谈谈如何将定语从句转换成非谓语动词以及转换时应注意的事项。
1定语从句转换成不定式“to do”。
定语从句的谓语动词是将来时或含有情态动词或含有序数词the next,the last等时,该定语从句转换为不定式“to do”.(1)The plane which will arrive is from Hubei.→The plane to arrive is from Hubei。
(2)The students will go to a party that will be held in our class at 7:45.→The students will go to a p arty to be held in our class at 7:45.(3)He was the first boy who came to school.→He was the first boy to come to school..2定语从句可转换成为“介词+关系代词或副词+不定式”。
“介词+关系代词”引导的定语从句和“介词+关系代词或副词+不定式”充当的定语,可以相互转换。
被这种定语修饰的名词往往在逻辑上充当不定式动作的地点、时间或工具。
例:(1)She wanted a room in which she could do her homework.→She wanted a room in which to do her homework.(2)She had only a pen with which she can write.→She had only a pen to write with.或She had only a pen with which to write.注:定语从句转换成“介词+ 关系代词+不定式”时,此时的不定式一定是及物动词,如是不及物动词,则需在动词后面加上相应的介词。
不定式与从句的转换
一、动词不定式是一个仅仅含有动词原形和附加成分(宾语、表语)以及连带成分(状语)的短语,转换为从句时主要围绕动词做文章。
既然不定式变成谓语动词,以下几点必需要考虑:1. 在原句中找出不定式的逻辑主语,使其成为转换成句子后的主语;2. 确定不定式所表达的时态或情态,把转换后的谓语动词变成相应的时态(将来、一般、完成或进行),有时候还有必要另加情态动词can/could,may/might;3. 确定原不定式在句子中所充当的成分(主语、宾语、表语、定语或状语),然后加上必要的关连词改为相应的从句。
二、与转换有关的不定式的相关知识A. 不定式的逻辑主语有下列几种情况1. 句子的主语就是不定式的逻辑主语,如:He helped to build a reservoir.You mustcome to see me on Sunday.What have I done to make you so angry?2. 不定式的逻辑主语是相邻的名词It's kind of you to see me.We know her to be a brave girl.Did you see him enter the room?It is for you to decide.3. 不定式的逻辑主语存在于不言自明的语境中To talk with him is a great pleasure. (可能是we, you 或everybody)Our plan is to finish the work in two weeks. (we)It is wrong not to help others. (we, they 或you)B. 不定式的时态1. 不定式的一般式的行为常表示下列两种时间:* 如果作宾补,与谓语动词同时发生,如:I saw him go out.Would you help me to put things in order?* 其他情况多数发生在谓语动词后,如:I hope to see you again.He wanted to be an actor.2. 不定式的完成式的行为发生在谓语动词之前,如:I am sorry to have kept you waiting.3. 不定式的进行式的行为发与谓语动词同时发生,如:He seems to be recovering.C. 不定式的词性以及在句子中充当的成分1. 名词性主语:It is our duty to help you.宾语:She decided to try again.表语:Her job is to take care of the children.2. 形容词性定语:He is always the first one to get up.3. 副词性目的状语:He came here to see me yesterday.结果状语:He is too excited to go to sleep.形容词补足语:I am sorry to hear that.三、转换实例1. 不定式——名词从句to talk with him is a great pleasure. ( 主语)--It is a great pleasure (that we can) talk with him.He hopes to be a sailor.(宾语)-- He hopes (that he can) be a sailor.My suggestion is to wait a little longger.(表语)-- My suggestion is (that we should) wait a little longger.The plan to finish the work in two weeks has been handed in. (同位语)-- The plan (that we/they should) finish the work in two weeks has been handed in.2. 不定式——定语从句He is the only one to go to the party in our class.-- He is the only one (who will/may) go to the party in our class.3. 不定式——状语从句We all work hard in order to complete our assignment in time. (目的)-- We all work hard in order (that we can) complete our assignment in time.We hurried so as to be in time for the meeting. (目的)-- We hurried so as (that we might) be in time for the meeting.He is too young to join the army (结果)-- He is too young (that he could not) join the army.His behaviour was such as for us all to refuse to receive him in our homes. (结果)-- His behaviour was such (that we all refused) to receive him in our homes.I'm very sorry to have kept you waiting. (原因)-- I'm very sorry (because/as/for I) have kept you waiting.四、不定式的转换有时候不能死板硬套上面的格式,有些特殊情况还需要特殊对待。
初中英语重点语法三大从句总结
初中英语重点语法三大从句总结初中英语中,主要有三大从句,即宾语从句、定语从句、状语从句(包括时间、条件、结果、目的、原因、让步、地点、方式等)。
1宾语从句在句子中起宾语作用的从句叫做宾语从句。
that: I think that you can pass the exam. Whether/if: I don’t know what the word means. “Wh”: I don’t know what the word means.I don’t know where he found the book.只用whether的情况:1. 与or not连用:I don’t know whether it’s raining or not.2. 与动词不定式连用:He doesn’t know whether to accept the invitation.3. 连接词前有介词时:It depends on whether he is coming.1. 主句是一般现在时态,从句根据实际情况而定(各种时态均可)She wants to know what he has done for the exam.2.主句是一般过去时态,从句用相应的过去的时态。
1)She said that she was a student.2)She said that she would fly to Japan in a week. 3)She said that she had finished her homework already.3. 如果宾语从句说的是客观真理、自然现象或事实时,这时宾语从句要用一般现在时态。
The teacher said that the earth goes round the sun.2定语从句在复合句中修饰名词、代词的从句叫定语从句。
先行词指人 who /that先行词指物 which/ that定语从句一般紧跟被修饰的名词或代词(即先行词)后关系代词代替先行词在句子中担当成分,所以从句中不可再出现其他代替先行词的代词Whom: 先行词指人,则代替先行词在定语从句中充当宾语(包括介词的宾语), 与who的区别是如果前面带介词则必须用whom1. This is the teacher whomwho we like best.2. I don’t like the boy to whom you are talking.Whose :指人或物,作定语,表示“…的”eg: Harry is the boy whose mother is our math teacher.关系代词只能 that 的特殊情况:1.先行词前有序数词修饰时:This is the first gift that my parents bought me.2.先行词前有形容词最高级修饰时:This is the most exciting film that I have ever seen.3. 先行词是不定代词something, anything等时.e.g. Is there anything that you want i n this shop4. 先行词是人和物时, 用that.e.g.He talked about some writers and books that were unknown to us all.5. 先行词被all , little , the only , the very(就是,正是), the last 等词修饰时,只能用thate.g. This is the last place that I want to visit.6. 特殊疑问句以who 或which 开头,只能用that引导.Who is the girl that is making a speech on the platform?当关系代词前使用介词时:物+介词+which ; 人+ 介词 + whom当关系代词前使用介词时:e.g. 1. This is the train by which we went to Beijing.2. This is the teacher to whom my mother is talking.3状语从句在复合句中由从句表示的状语称作状语从句,它可以用来修饰谓语(包括非谓语动词)、定语或状语,或是整个句子。
(完整版)非谓语动词和从句的转换
非谓语动词和从句的转换----一.不定式(短语)与从句的关系1.不定式(短语)在句中作主语,其功能相当于一个主语从句,因此二者之间可以转换。
(1).To be able to help you is really an honor.(=That I’m able to help you)(2).He seemed to know the way.(=It seemed that he knew the way.)(3).Bush is said to have decided to attack North Korea.(= It is said that Bush has decided to attack North Korea.)2.不定式(短语)在句中作宾语或宾补,相当于一个宾语从句(1).We still don’t know when and where to build a school.(宾语)(=when and where we should build a school)(2).I advised him to go and see the doctor.(宾补)(=that he should go and see)(3).He thought it a great pity not to have invited her. .(宾语)(=That he hadn’t invited her.)3不定式(短语)在句中作表语.,相当于一个表语从句(1).My suggestion is for them to leave as soon as possible.(=that they should leave)(2).My chief purpose has been for them to get a good understanding.(=that they can get a good understanding)4.不定式(短语)在句中作定语.,相当于一个定语从句(1).The question will be discussed at the conference shortly to open in Beijing.(=that is shortly to open in Beijing)(2).All dead, I was the only one to grow up. (=that grew up)5.不定式(短语)在句中作目的.结果状语.,相当于一个目的.结果状语从句(1).He came to the area in order/so as to study the folk music there.(=in order/so that)(2).The lady was so excited as not to say a word.(=so excited that she could n’t…)7.不定式(短语)在句中作原因状语.,相当于一个原因状语从句(1)I trembled to think of being punished by the boss.(=because I though of being punished by the boss)(2).We were disappointed to have lost the game.(=that we have lost the game)二.动名词(短语)与从句的关系1. 动名词(短语)在句中作主语,相当于一个主语从句(1).Your going away (=That you went away) made the professor angry.(2).Mary’s not being made monitor (=That Mary was not made monitor ) made us sad.被动的动名词在句中作主语时一般不能省(3).Being called a fool(=That he was called a fool) hurt Bob badly.2. 动名词(短语)在句中作宾语或宾补语,相当于一个宾语从句(1).I remember being taken to Beijing(=that I was taken to Beijing) when I was five.(2).He admitted having married Mary to a soldier(=that he had married Mary to a soldier).3.动名词(短语)在句中作表语.,相当于一个表语从句(1).My duty is serving the people heart and soul (that I’ll serve the people heart and soul).(2).The problem is his not having prepared his lessons for the exam(=that he hasn’t prepared his lessons for the exam)(3).The difficulty is Mary’s being caught between the two trees(=that Mary is caught between the two trees).4.介词+动名词(短语),相当于一个从句(宾语从句或同位语从句 0(1)He was afraid of being scolded by his mistake.(=that he was…)(2).He was astonished at her knowing you.(=that she knew you)(3).We heard the news of our team having won.(=that our team had won)三.分词(短语)与从句的关系1.分词(短语)作定语,相当于一个定语从句(1)The hospital was an old building built in 1931(=that was built in 1931).(2).Do you know the girl standing over there(=who is standing over there)?(3).The man speaking to us the other day(= who spoke to us the other day) has gone to Japan.本节值得注意的问题:现在分词短语作定语时,所表示的动作不能先于谓语所表示的动作,也不可以表示将来。
初中英语重点语法三大从句总结
As (so) far as ---据……所知
As far as I know, he speaks English very well.
In case ---假使,如果
The plane cannot take off in case it rains.
Provided that如果,有时省略that
The plane will be in good condition provided that it is taken care of carefully.
On condition that ---条件是…
He said that he would come to the meeting on condition that no one asked him to speak.
宾语从句
一、定义
在句子中起宾语作用的从句叫做宾语从句。
二、连接词
that: I think that you can pass the exam.
Whether/if: I don’t know what the word means.
“Wh”: I don’t know what the word means.
Because ---因为,通常从句放在主句后.
Mr Smith was very upset because he couldn’t find his luggage.
As ---因为,通常放在句首
As he is honest and modest, all his friends like him.
Each time he came to town, he would visit our school.
原题目:三大从句与动词不定式的用法总结
原题目:三大从句与动词不定式的用法总结三大从句与动词不定式的用法总结一、名词性从句名词性从句是在句子中充当名词的从句。
常见的名词性从句有三种:主语从句、宾语从句和表语从句。
- 主语从句:在句子中充当主语的从句。
常以连接词“that”引导,但在口语中通常省略。
例:That he is innocent is beyond doubt.(他是无辜的是毋庸置疑的)That he is innocent is beyond doubt.(他是无辜的是毋庸置疑的)- 宾语从句:在句子中充当宾语的从句。
常以连接词“that”引导,但在口语中可以省略。
例:I believe that he is innocent.(我相信他是无辜的)that he is innocent.(我相信他是无辜的)- 表语从句:在句子中充当表语的从句。
常以连接词“that”引导,但在口语中可以省略。
例:The important thing is that we try our best.(重要的是我们尽力)that we try our best.(重要的是我们尽力)二、定语从句定语从句是在句子中充当定语的从句,用来修饰名词或代词。
- 定语从句的引导词有关系代词和关系副词。
常用的关系代词有:who, whom, whose, which, that;常用的关系副词有:when, where, why。
- 关系代词指人的用who, whom, whose;指物的用which, that。
- 关系副词在从句中充当状语,指时间的用when,指地点的用where,指原因的用why。
例:I know the man who is standing there.(我认识站在那里的那个人)who is standing there.(我认识站在那里的那个人)This is the house where I used to live.(这是我曾经住过的房子)where I used to live.(这是我曾经住过的房子)三、状语从句状语从句是在句子中充当状语的从句,用来表示时间、地点、条件、原因、目的、方式、比较等。
原题目:三大从句与动词不定式的语法规则
原题目:三大从句与动词不定式的语法规则三大从句与动词不定式的语法规则本文将介绍三大从句(名词性从句、定语从句和状语从句)以及动词不定式在语法中的规则和用法。
一、名词性从句名词性从句用作主语、宾语、表语或同位语,常有以下几种引导词:that, whether, if, who, whom, whose, which, what, whoever, whatever, whichever。
例:- 表语从句:The important thing is that we should try our best. (重要的是我们应该尽力。
)- 同位语从句:The fact that she is leaving surprised me. (她要离开的事实让我感到惊讶。
)二、定语从句定语从句用来修饰名词或代词,并与被修饰的词构成一定关系。
常用引导词有:who, whom, whose, which, that。
例:- 限制性定语从句(不可省略):The book that you gave me is really interesting. (你给我的那本书真的很有趣。
)- 非限制性定语从句(可省略):My sister, who is a doctor, works at the hospital. (我的姐姐是一名医生,她在医院工作。
)三、状语从句状语从句用来修饰谓语动词,表示时间、原因、条件、目的、结果等,常用引导词有:when, while, before, after, because, since, as, if, unless, although, though, whether, that, etc.例:- 时间状语从句:I will go shopping after I finish my work. (我完成工作后会去购物。
)- 条件状语从句:If it rains tomorrow, we will stay home. (如果明天下雨,我们会呆在家里。
三种易混从句的辨别
三种易混从句的辨别专题策划:这样备考三类从句编者按:英语中有三类从句,即名词性从句、定语从句和状语从句。
这三类从句的学习、掌握和使用对同学们来说是一个颇为复杂的过程。
本专题通过对比分析这三大从句的区别,归纳三大从句与动词不定式的转换规律,希望能帮助同学们掌握区分从句与解答从句类考题的方法,并学会在书面表达中正确使用从句。
定语从句、同位语从句和状语从句有时候在形式上很相似,下面提供一些区分的方法。
一、定语从句与同位语从句定语从句与前面的名词是修饰与被修饰的关系,而同位语从句是用来说明前面名词的内容的。
that在定语从句中充当句子成分,可指物或人,而同位语从句中的that在从句中不充当任何句子成分,只起连接作用。
试比较:①The news(that/which)he told us was exciting.(定语从句,that/which在从句中作宾语,可以被省略)②The news that our team has won is exciting.(同位语从句,that从句是说明news的内容的,that在从句中不作任何成分,但不能省略)特别提醒:一般情况下,同位语从句紧跟在它所说明的名词之后,可是有时为了表达的需要,名词与从句之间被另外一些内容分隔开了,叫“分隔同位语从句”。
对于这类同位语从句,一定要根据句意,找准其所说明的名词。
例1 (2014年高考安徽卷)The exact year _____ Angela and her family spenttogether in China was 2008.A. whenB. whereC. whyD. which解析:本题中的定语从句的先行词是the exact year,后面的定语从句Angela and her family spent together in China中动词spent后面缺少宾语,所以使用关系代词which 引导这个定语从句,并在句中作宾语。
原题目:动词不定式与三大从句的比较分析
原题目:动词不定式与三大从句的比较分析引言本文将对动词不定式和三大从句进行比较分析。
首先,我们将简要介绍动词不定式和三大从句的定义和特点。
接下来,将分析它们在语法结构、用法和表达意义等方面的差异。
最后,我们将总结比较结果,探讨它们在不同语境中的使用情况和适用性。
动词不定式动词不定式是名词、形容词或副词等的补语。
它的形式由"to"加上动词原形构成。
动词不定式在句子中可以作为主语、宾语、表语或介词的宾语等。
它可以表示目的、意图、原因、结果等。
三大从句三大从句包括名词性从句、定语从句和状语从句。
名词性从句在句子中充当名词的角色,可以作主语、宾语或表语等。
定语从句用于修饰名词,可以用来限定名词或补充名词的信息。
状语从句在句子中充当状语的角色,可以表示时间、条件、原因、方式等。
比较分析语法结构动词不定式的语法结构相对简单,由"to"加动词原形构成。
而三大从句的语法结构相对复杂,需要注意从句的引导词和句子的连接关系。
用法动词不定式可以用于表示目的、意图、原因、结果等,常见的用法有不定式作主语、宾语、表语等。
三大从句可以在句子中充当名词、形容词或副词的角色,具有更丰富的用法。
表达意义动词不定式的表达意义相对简洁明了,常用于陈述事实或目的。
而三大从句的表达意义更加复杂多样,可以用于描述条件、原因、方式等。
结论通过对动词不定式和三大从句的比较分析,我们可以看出它们在语法结构、用法和表达意义等方面具有不同的特点。
动词不定式相对简单,常用于表达目的和意图,而三大从句更加灵活,用法更加多样。
在使用时,应根据具体语境和需要选择合适的表达方式。
以上是对动词不定式和三大从句的简要比较分析,希望对您有所帮助。
原题目:动词不定式与三大从句的比较分析
原题目:动词不定式与三大从句的比较分析动词不定式和三大从句(名词性从句、形容词从句和副词从句)是英语语法中常见的结构形式。
本文将对动词不定式和三大从句进行比较分析。
一、定义1. 动词不定式:动词不定式是由动词原形加上"to"构成的形式,用来作为动词的名词、形容词或副词。
2. 名词性从句:名词性从句是作为名词使用的从句,可以充当主语、宾语、表语或同位语等。
3. 形容词从句:形容词从句是用来修饰名词或代词的从句,常作为定语或表语。
4. 副词从句:副词从句是用来修饰动词、形容词或副词的从句,常作为状语。
二、用法比较1. 主谓结构:- 动词不定式:作为动词的宾语,表示某个动作或状态。
- 名词性从句:作为主语或宾语从句,表示某个事实或概念。
- 形容词从句:作为主语从句,表示某种品质或状态。
- 副词从句:作为状语从句,表示时间、地点、原因、目的等。
2. 宾语从句:- 动词不定式:作为动词的宾语从句,常带有to,并可以省略to。
- 名词性从句:作为动词的宾语从句,没有to,并无法省略引导词。
- 形容词从句:不作为宾语从句。
- 副词从句:不作为宾语从句。
3. 特殊用法:- 动词不定式:可以用作主语补语、目的状语、结果状语等。
- 名词性从句:可以用作主语、宾语、同位语等。
- 形容词从句:可以用作定语、表语、同位语等。
- 副词从句:可以用作状语。
三、语法结构比较1. 动词不定式:to + 动词原形2. 名词性从句:从句中使用连接词引导,如that, whether, if等3. 形容词从句:从句中使用连接词引导,如who, whom, whose, which, that等4. 副词从句:从句中使用连接词引导,如when, where, why, how, that等四、总结动词不定式和三大从句在用法上有一些区别,主要体现在主谓结构、宾语从句和特殊用法等方面。
需要根据具体的语境和语义要求选择适当的结构使用。
复合句和非谓语动词之间的转换
复合句和非谓语动词之间的转换1.名词性从句和非谓语动词之间的转换:将名词性从句变为动名词短语、动词不定式短语等。
A. 主语从句:1. That the students know English helps them in learning French.The students’ knowing English helps them in learning French. 2. That he was ill made his mother worried.His being ill made his mother worried.3. That she was chosen made us happy.Her being chosen made us happy.4. When and where we will hold the meeting is unknown. Where and where to hold the meeting is unknown.5. It seemed that they were eating something cooked on the fire.They seemed to be eating something cooked on the fire.6. It is said that the book has been translated into many other languages.The book is said to have been translated into many other languages.7. He happened that he was at home that day.He happened to be at home that day.B. 表语从句1. Our worry is that you depend too much on him.Our worry is your depending too much on him.2.The trouble is that they were not able to agree witheach other.The trouble is their not being able to agree with each other.3.My idea is that he should go without delay.My idea is for him to go without delay.C.宾语从句1. I regret that I haven’t accepted your advice.I regret not having accepted your advice.2.He suggests that we (should) make better use of the schoollibrary.He suggests our making better use of the school library.3.I don’t know what I can do with the unwelcome fellow.I don’t know what to do with the unwelcome fellow.4.I warned that he should not drive the car after drinking.I warned him not to drive the car after driving.5.He was afraid that he was scolded for his mistake.He was afraid of being scolded for his mistake.6.He was astonished that she knew you.He was astonished at her knowing you.D. 当从句是同位语从句:We heard the news that our team had won.We heard of our team having won.2.定于从句和非谓语动词之间的转换A.将定语从句变成分词短语、动词不定式短语(主动关系用doing, to do; 被动关系用done, being done, to be doneThe building which was built last week is our library.The building built last week is our library.He lives in a house that faces the south.He lives in a house facing the south.The building which is being built now is our library.The building which had been built last year is our hospital.The building built last year is our hospital.The man who is talking to Tom is his young brother.The man talking to Tom is his young brother.定语从句中如含有情态动词或先行词前有序数词、Last、only、等修饰时变定语从句为不定式短语作后置定语You need someone who can look after you.You need someone to look after you.He was the first that arrived and the last that leftHe was the first to arrive and the last to leave.The question which will be discussed tomorrow is whether income tax should be increased.The question to be discussed tomorrow is whether income tax should be increased.C. 若定语从句中含有“拥有”意义的动词has, have, had 时,用介词with, without.The old man who had a pipe in his mouth stood there.The old man with a pipe in his mouth stood there.The teacher is looking for a rule that did not have an exception.The teacher is looking for a rule without an exception.3.状语从句与非谓语动词之间的转换(1)当从句是条件状语从句、时间状语从句、让步状语从句时把状语从句变成分词短语(主动关系用doing, 完成关系用having done; 被动关系用done; 完成时的被动关系用having been done当主句和从句的主语一致时While I was waiting for the bus, I caught sight of her.(while) waiting for the bus, I caught sight of her.Because I hadn’t received an answer I wrote again.Not having received an answer, I wrote again.As he was educated by the party, he became a great fighter. Educated by the Party, he became a great fighter.Being educated by the Party, he became a great fighter.(不正确)Though he had been told many times, he still repeated the same mistake.Having been told many times, he still repeated the same mistake.Once seen, it can never be forgotten.当主句和从句的主语不一致时(独立主格结构,其前不能保留连接词)When spring comes, the fields are full of life.Spring coming, the fields are full of life.If weather permits, we’ll go for a spring outing.Weather permitting, we’ll go for a spring outing.Because he was ill, his wife had to attend to him at home.Being ill, his wife had to attend to him at home.Because there was no bus, we must come back home on foot. There being no bus, we must come back home on foot.When everything was prepared, we began to carry out the project.Everything prepared, we began to carry out the project.B.用介词短语替代从句He was praised because he had won the prize.He was praised for having won the prize.As soon as I arrive there, I’ll telephone you.On arriving there, I’ll telephone you.After the work was done, he went home.With the work done, he went home.If you help us, we will finish the task in time.With you to help us, we will finish the task in time.2.当从句是结果状语从句、目的状语从句时用表结果的分词短语或表目的的不定式替换从句(只有当主句和从句的主语一致时)They set out early in order that (so that) they can arrive there in time.They set out early in order to (so as to) arrive there in time.She was so excited that she couldn’t go to sleep.She was too excited to go to sleepShe was so excited as not go to sleep.4.并列复合句和非谓语动词之间的转换有些以and连接的复合句,可以把变成逗号,把and后面的从句变成独立主格结构、with复合结构或非谓语动词The boy stood there and his right hand was raised.The boy stood there, his right hand raised.He climbed in and a sword was in his hand.He climbed in, with a sword in his hand.He climbed in, a sword in his hand.He climbed in, sword in hand.His father died and left him an orphan.His father died, leaving him an orphan.The teacher entered the lab and (he) was followed by his students.The teacher entered the lab, followed by his students.。
原题目:掌握三大从句与动词不定式的转换技巧
原题目:掌握三大从句与动词不定式的转换技巧从句和动词不定式是英语中常用的句子结构之一。
掌握它们之间的转换技巧,可以帮助我们提升写作和表达能力。
以下是三大从句与动词不定式的转换技巧:一、名词性从句与动词不定式的转换1. 主语从句与it + 动词不定式的转换主语从句是句子中充当主语的从句,而it + 动词不定式结构可以用来替代主语从句。
主语从句例句:- What she said is true. (她说的是真的。
)转换为it + 动词不定式:- It is true what she said.(她说的是真的。
)2. 宾语从句与动词不定式的转换宾语从句是句子中充当宾语的从句,而动词不定式可以用来替代宾语从句。
宾语从句例句:转换为动词不定式:二、定语从句与动词不定式的转换1. 定语从句与介词 + 动词不定式的转换定语从句是对名词进行修饰的从句,而介词 + 动词不定式结构可以用来替代定语从句。
定语从句例句:转换为介词 + 动词不定式:2. 定语从句与关系副词 + 动词不定式的转换定语从句中使用关系代词/副词来引导,而关系副词 + 动词不定式结构可以用来替代定语从句。
定语从句例句:- This is the place where we met. (这是我们见面的地方。
)转换为关系副词 + 动词不定式:- This is the place to meet.(这是我们见面的地方。
)三、状语从句与动词不定式的转换1. 时间状语从句与动词不定式的转换时间状语从句用来表示时间关系,而动词不定式可以用来替代时间状语从句。
时间状语从句例句:- I will leave when you finish your work. (当你完成工作时,我会离开。
)转换为动词不定式:- I will leave once you finish your work.(当你完成工作时,我会离开。
)2. 条件状语从句与动词不定式的转换条件状语从句用来表示条件关系,而动词不定式可以用来替代条件状语从句。
初中知识点归纳名词性从句的种类与句型转换
初中知识点归纳名词性从句的种类与句型转换名词性从句是一种在句子中作为名词的从句。
它可以充当主语、宾语、表语或补语,起到连接主句和从句的作用。
名词性从句的种类有主语从句、宾语从句、表语从句和同位语从句。
本文将对这几个种类进行归纳,并介绍句型转换的方法。
一、主语从句主语从句在句子中充当主语的角色,用来说明谓语动词的内容。
常常以“从句+谓语”的形式呈现。
以下是主语从句的几种常见句型转换方法:1. 主语从句转换为 it 作为形式主语:原句:What he said is true.转换后:It is true what he said.2. 主语从句转换为 it 作为形式主语 + 省略从句中的谓语动词:原句:Whether she will come or not remains unknown.转换后:It remains unknown whether she will come or not.3. 主语从句转换为 it 作为形式主语 + 将从句中的谓语动词变为不定式:原句:If it will rain tomorrow worries me.转换后:It worries me whether it will rain tomorrow.二、宾语从句宾语从句在句子中充当宾语的角色,说明动词的对象。
常以“主句+从句”的形式出现。
下面是宾语从句的几种常见句型转换方法:1. 宾语从句转换为 it 作为形式宾语:原句:I don't know where he is.转换后:I don't know it where he is.2. 宾语从句转换为 it 作为形式宾语 + 省略从句中的谓语动词:原句:She asked if I could help her.转换后:She asked it I could help her.3. 宾语从句转换为 it 作为形式宾语 + 将从句中的谓语动词变为不定式:原句:They want to know whether he has arrived.转换后:They want to know it he has arrived.三、表语从句表语从句在句子中充当表语的角色,通常以“主句+系动词+从句”的形式出现。
原题目:应用三大从句与动词不定式进行句子改写
原题目:应用三大从句与动词不定式进行句子改写从句是一个句子中作为主句、宾语、表语等成分的一种句子。
动词不定式是不带有人称和数的动词形式。
在句子改写中,使用从句和动词不定式可以为原句增添变化和丰富性。
下面将介绍如何应用三大从句(定语从句、名词性从句和状语从句)和动词不定式进行句子改写。
一、定语从句进行句子改写定语从句是一种修饰名词或代词的从句,常用关系代词如that, who, which等引导。
通过改写原句中的定语从句,可以使句子结构更加简洁、连贯。
例如:原句:The book that I bought yesterday is very interesting.改写:The book I bought yesterday is very interesting.原句中的定语从句"that I bought yesterday"被改写为" I bought yesterday",使句子更加简洁。
二、名词性从句进行句子改写名词性从句在句子中充当名词的作用,可以作主语、宾语、表语等。
通过改写原句中的名词性从句,可以改变句子的结构和表达方式。
例如:原句:I don't know where she is.改写:I am not sure about her whereabouts.原句中的名词性从句"where she is"被改写为"her whereabouts",使句子更加表达了作者对她位置的不确定。
三、状语从句进行句子改写状语从句充当句子中的状语,修饰动词、形容词、副词等。
通过改写原句中的状语从句,可以使句子更有变化和灵活性。
例如:原句:Although it was raining, they went out for a walk.改写:Despite the rain, they went out for a walk.原句中的状语从句"Although it was raining"被改写为"Despite the rain",使句子更加简洁。
非谓语动词和从句的转换
非谓语动词和从句的转换----一.不定式短语与从句的关系1.不定式短语在句中作主语;其功能相当于一个主语从句;因此二者之间可以转换..1.To be able to help you is really an honor.=That I’m able to help you2.He seemed to know the way.=It seemed that he knew the way.3.Bush is said to have decided to attack North Korea.= It is said that Bush has decided to attack North Korea.2.不定式短语在句中作宾语或宾补;相当于一个宾语从句1.We still don’t know when and where to build a school.宾语=when and where we should build a school2.I advised him to go and see the doctor.宾补=that he should go and see3.He thought it a great pity not to have invited her. .宾语=That he hadn’t invited her.3不定式短语在句中作表语.;相当于一个表语从句1.My suggestion is for them to leave as soon as possible.=that theyshould leave2.My chief purpose has been for them to get a good understanding. =that they can get a good understanding4.不定式短语在句中作定语.;相当于一个定语从句1.The question will be discussed at the conference shortly to open in Beijing.=that is shortly to open in Beijing2.All dead; I was the only one to grow up. =that grew up5.不定式短语在句中作目的.结果状语.;相当于一个目的.结果状语从句1.He came to the area in order/so as to study the folk music there.=in order/so that2.The lady was so excited as not to say a word.=so excited that she couldn’t…7.不定式短语在句中作原因状语.;相当于一个原因状语从句1I trembled to think of being punished by the boss.=because I though of being punished by the boss2.We were disappointed to have lost the game.=that we have lost the game二.动名词短语与从句的关系1. 动名词短语在句中作主语;相当于一个主语从句1.Your going away =That you went away made the professor angry.2.Mary’s not being made monitor =That Mary was not made monitor made us sad.被动的动名词在句中作主语时一般不能省3.Being called a fool=That he was called a fool hurt Bob badly. 2. 动名词短语在句中作宾语或宾补语;相当于一个宾语从句1.I remember being taken to Beijing=that I was taken to Beijing whenI was five.2.He admitted having married Mary to a soldier=that he had married Mary to a soldier.3.动名词短语在句中作表语.;相当于一个表语从句1.My duty is serving the people heart and soul that I’ll serve the people heart and soul.2.The problem is his not having prepared his lessons for the exam=that he hasn’t prepared his lessons for the exam3.The difficulty is Mary’s being caught between the two trees=thatMary is caught between the two trees.4.介词+动名词短语;相当于一个从句宾语从句或同位语从句 01He was afraid of being scolded by his mistake.=that he was…2.He was astonished at her knowing you.=that she knew you3.We heard the news of our team having won.=that our team had won 三.分词短语与从句的关系1.分词短语作定语;相当于一个定语从句1The hospital was an old building built in 1931=that was built in 1931.2.Do you know the girl standing over there=who is standing over there3.The man speaking to us the other day= who spoke to us the other day has gone to Japan.本节值得注意的问题:现在分词短语作定语时;所表示的动作不能先于谓语所表示的动作;也不可以表示将来..另外;一般不用现在分词的完成式作定语;所以;下列句子都是错的:Here is Mr. Li coming from Beijing. 应改为who has come from BeijingThose having finished their work can go home now. 应改为who have finishedThe man giving us a lecture last week left for Shenzhen this morning. 应改为who gave us2.分词独立结构;相当于一个状语从句;其中伴随状语多与并列句转换1Weather permitting=If weather permits; we’ll have the match tomorrow.2.The dark clouds having disappeared=When the dark clouds had disappeared; the sun shone again.3.The monitor being ill=As the monitor was ill we’d better put the meting off.4.Other things being equal=If other things are equal; I’d buy the black dress.5.Given more time=If we were given more time; we could have done it better.6.He came back; his hands tied to his back=and his hands were tied to his back.3.分词短语;相当于一个状语从句1On arriving=As soon as I arrive there; I’ll telephone you.时间2.Whilewaiting=While I was waiting for the bus; I caught sight of her.时间cated=As he was educated by the party; he became a great fighter.原因4.Not having received=Because I hadn’t received an answer; I wrote to him again.原因5.If given=If we had been given enough time; e could have done it better.条件6.Though having made=Though he had made great achievements; he didn’t pride.让步4.分词短语作状语;可表伴随;结果;相当于and 的并列句;也可和 with 转换1He died; leaving his daughter much money. =with;=and left 2.The teacher entered the lab; followed by our students.=and he was followed by our students =with us following him=and we followed him5.分词短语在句中作宾语或宾语补足语;相当于一个宾语从句1He found the windows broken.=He found that the windows were broken.2.I felt my heart beating fast at the news of bomb explosion.=I felt that my heart was besting fast at the news of bomb explosion 四.特殊转换1. 动名词复合结构相当于从句1Sophia’s having seen them=That Sophia had seen them didn’t surprised us.2.I can’t bear his him staying up so late=that he stays up so late.3.We encourage students’ living in the school=that students live in the school.4.What was disappointing was our not being able to go for a picnic that we were not able to go for a picnic.2. there +being+其他成分1There being nothing to do; we played games.=Because there was nothing to do 原因2.They closed the store; there being no customers.=Because there was no customers 原因。
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一、定语从句与不定式的转换1.“介词+关系代词”引导的定语从句,主句与从句主语一致时,可转换为“介词+关系代词+不定式”结构。
命题方向主要为考查“介词+关系词”的选择。
例1 The farmers use wood to build a house ______ to store grains all the year round.A. with which B. to whichC. for which D. on which解析:此题可还原为一个“介词+关系代词”引导的定语从句:The farmers use wood to build a house with which they can store grains all the year round.因主句与从句主语一致,把定语从句转换为“介词+关系代词+不定式”结构,即“with which to store”。
答案为A。
例2 Frank’s dream was to have his own shop ______ to produce the workings of his own hands.A. that B. in which C. by which D. how解析:此题可还原为一个“介词+关系代词”引导的定语从句:Frank’s dream was to have his own shop in which he could produce the workings of his own hands. 因主句与从句主语一致,把定语从句转换为“介词+关系代词+不定式”结构,即“in which to produce”。
答案为B。
2.定语从句转换为不定式作定语,表示将来。
命题方向主要为考查不定式作定语表将来意义。
例3 The play ______ next month aims mainly to reflect the local culture.A. produced B. being producedC. to be produced D. having been produced解析:此题可还原为一个定语从句:The play which will be produced next month aims mainly to reflect the local culture.因不定式的一般式可以作定语,表将来意义,可把表示将来被动的定语从句“which will be produced next month”改为不定式的被动形式“to be produced next month”。
答案为C。
例 4 The chairman insists that there be a meeting ______ within the shortest possible time.A. to hold B. to be heldC. to have been held D. to be holding解析:此题可还原为一个定语从句:The chairman insists that there be a meeting which will be held within the shortest possible time.因不定式的一般式作定语可表示将来,可把表示将来被动的定语从句which will be held 改为不定式的被动形式to be held。
答案为B。
二、名词性从句与不定式的转换1.宾语从句与不定式的转换:当疑问词引导的宾语从句的主语与主句主语一致时,可转换为“疑问词+不定式”结构。
命题方向主要为考查不定式短语。
例5 It is said in Australia there is more land than the government knows ______.A. it what to do with B. what to do it withC. what to do with it D. to do what with it 解析:此题可还原为一个宾语从句:...the government knows what it will do with it.前一个it 指the government,宾语从句的主语与主句主语一致时,可转换为“疑问词+不定式”结构,即“what to do with it”。
答案为C。
2.由it作形式主语的主语从句与不定式的转换:(1)句型“It+be+said / reported / believed / thought / supposed that sb. / sth. +谓语”可转换为“sb. / sth.+be+said / reported / believed / thought / supposed +不定式”。
命题方向主要为考查不定式的时态和语态。
例6 ―Is Bob still performing?―I’m afraid not. He is said ______ the stage already as he has become an official.A. to have left B. to leaveC. to have been left D. to be left解析:此题可把“He is said ______ the stage already as he has become an official”还原为“It is said that he has left the stage already ...”。
题干中的句型为“sb. is said +不定式”,already 暗示完成,所以用不定式的完成式,主语和谓语是主动关系,即“He is said to have left ...”。
答案为A。
例7 Bell is believed ______ the first telephone in 1876.A. to invent B. to have inventedC. that it is D. to have been invented 解析:此题可把“Bell is believed ______ the first telephone in 1876”还原为“It is believed that Bell invented the first telephone in 1876”。
题干中的句型为“sb. is believed+不定式”,又因有具体的过去时间,所以用不定式的一般式,主语和谓语是主动关系,即“Bell is believed to invent ...。