be _of_ 结构与介词宾语从句
be of 结构与介词宾语从句
be of 结构与介词宾语从句一、“ (be)+of+名词”用法请看课本中的句子：Freedom fighters can be found everywhere, and they are of all times.（Unit 14）自由战士在各个地区，各个时期都存在。
该句的后半句，采用了be of接名词来说明句子的主语所具有的性质或特征。
这是一种很常用的句式。
be of 后可接两种不同性质和类型的名词，他们的意义大相径庭区别明显相差很远。
1，be of 后可接value, importance, use, help, significance, interest, benefit 等一些抽象名词，这样的结构用来说明句子主语所具有的作用、重要性或意义。
在这类抽象名词前我们可用一些形容词，如: great, little, some, any, no, not much等来修饰抽象名词，用以说明程度。
“be of+ 抽象名词（value，importance，use，help，interest 等）”相当于“be + 该抽象名词相对应的形容词”。
其中of 表示“具备；具有”，of 不可以省略。
例如：They are of great help to learners of English.他们对英语学习者来说是很有帮助的。
The press conference seems of great importance.这个新闻发布会看来很重要。
I don't want to hear what you are saying. It is of no interest to me. 我不想听你说,我对此不感兴趣。
(of no interest=not interesting)Doing morning exercises will be of benefit to your health.做早操对你的健康有利。
宾语从句种类有3类
宾语从句种类有3类动词的宾语从句介词的宾语从句形容词的宾语从句1、动词的宾语从句·大多数动词都可以带宾语从句We all expect that they will win , for members of their team are stronger.我们都预料他们会赢,因为他们的队员更强壮.He told us that they would help us through the whole work.他告诉我们在整个工作中,他们都会帮忙的.·部分“动词+副词”结构也可以带宾语从句I have found out that all the tickets for the concert have been sold out.我发现这场音乐会的所有票都卖光了.Can you work out how much we will spend during the trip?你能计算出这次旅行我们将花费多少钱吗?·动词短语也可以带宾语从句常见的这些词有:make sure确保 make up one’s mind下决心 keep in mind牢记Make sure that there are no mistakes in your papers before you turn them in.在上交试卷前确保没有任何错误.·可运用形式宾语it代替的宾语从句①动词find,feel,consider,make,believe等后面有宾语补足语的时候,则需要用it做形式宾语而将that宾语从句后置.I think it necessary that we take plenty of hot water every day .我认为每天多喝开水是有必要的.I feel it a pity that I haven’t been to the get-together.我没去聚会,感觉非常遗憾.②有些动词带宾语从句时需要在宾语与从句前加it这类动词主要有:hate, take , owe, have, see to.I hate it when they with their mouths full of food.我讨厌他们满嘴食物时说话.He will have it that our plan is really practical.他会认为我们的计划确实可行.We take it that you will agree with us.我们认为你会同意我们的.When you start the engine, you must see to it that car is in neutral.开启发动机时, 一定要使汽车的离合器处于空挡位置.③若宾语从句是wh-类,则不可用it代替We all consider what you said to be unbelievable.我们都认为你所说的是不可信的.We discovered what we had learned to be valuable.我们发现我们所学到的东西都是有用的.2、介词的宾语从句·用wh-类的介词宾语从句We are talking about whether we admit students into our club.我们正在讨论是否让学生加入我们的俱乐部.The new book is about how Shenzhou 6 manned spaceship was sent up into space.这本新书是关于神州6号载人航天飞船是如何升入太空的.·用that,if引导的介词宾语从句有时候except,but,besides三个介词后可见到that引导的宾语从句I know nothing about my new neighbor except that he used to work with a company.对于我的新邻居我只知道他曾在一家公司上班,其他一无所知.3、形容词的宾语从句·常用来引导宾语从句的形容词有:sure,certain,glad,please,happy,sorry,afraid,satisfied,surprisedI am sure I will pass the exam.我确信我会通过考试.I am sorry that I have troubled you so long.很抱歉我这么长时间在打扰你.He is glad that Li Ming went to see him when he was ill.他很高兴在他生病的时候李明能去看望他.注意A 宾语从句必须用陈述语序。
高中英语宾语从句详解
高中英语宾语从句详解1、概述用作宾语的从句叫做宾语从句.宾语从句的位置与陈说句基本结构中的宾语相反.宾语从句可作谓语动词的宾语, 也可以作介词和非谓语动词〔动词不定式、动名词、分词〕和某些描画词的宾语.宾语从句可以由附属连词that whether if, 关系代词what,who,whose,which和关系副词when、where、how、why等引导.He said he wanted to go to town.他说他想去城里.I hope you'll be better soon.我希望你能很快好起来.I’m so glad that you were able to come to this party.你能设法抽空列席这个交际会, 我很快乐.I know nothing about it except what I have read in the papers.除了在报上读到的以外,我对这件事一无所知.Most of the Chinese people usually go to work on the bike except when it rains.除了雨天,大少数中国人普通都骑自行车下班.He asked me whether she was coming.他问我, 她来还是不来.2、作动词宾语〔1〕由附属连词that引导的宾语从句.that引导宾语从句时, 只起引导词作用, 在句中不做成分, 在口语和非正式文体中常省去.I think(that)he'll be right in a few days.我以为他几天后就会好的.I wish(that)she would understand me.我希望她了解我.〔2〕由关系代词what,who,whose,which引导的宾语从句, 在句中作成分, 即主语、宾语、表语和定语, 关系代词在句中不能省略.A computer can only do what you have instructed it to do．计算机只能按人的指令去做.Do you know whom they are waiting for?你知道他们在等谁吗?He asked whose dictionary it was.他问这是谁的字典.He can't tell which method they will use for the experiment.他不能判定他们会用哪一种方法做实验.〔3〕关系副词when, where, how, why等引导宾语从句.关系副词when, where, how, why既有疑问意义, 又起衔接作用, 而且在宾语从句中充任各种状语, 区分表时间、地点、方式、缘由.在句中不能省略.Please tell me when we shall discuss our plan.请通知我我们将何时讨论方案.I don't know where we are going to have the meeting.我不知道我们将在哪里休会.Will you tell me how I can get to the station?你能通知我如何能到车站吗?Do you know why he said that?你知道他为什么说那件事吗?I remember when this used to be a quiet village．我记得这里曾经是一个僻静的村庄.〔4〕由附属连词whether或if引导的宾语从句.I wonder whether(if)daughters are valued as much as sons in the countryside.我想知道在乡村女儿能否和儿子一样遭到注重.I don't know whether(if)you are willing to help me.我不知道你能否情愿帮我.留意：whether和if的区别.〔5〕动词+直接宾语+宾语从句.动词如：advise,ask,inform,promise,question,remind,show,teach,tell,warn等, 宾语从句前可以有一个直接宾语, 这个宾语有时可以省略, 有的不能省略.He has informed me when they are to discuss my proposal.他曾经通知我们将什么时分讨论我的建议.(me不可省略)She promised(us)that she would give us more help later on.她容许以后给我们更多的协助.(us可省略)3、作介词宾语It depends on whether he is coming or not.这要看他能否会来.I was curious as to what we could do next.我想知道下一步我们该做什么.留意：that引导的宾语从句只在in,but,except,besides等少数介词后作宾语, 构成固定搭配, in that在于〔由于〕, but that要不是(只是), except that除了…….The higher income tax is harmful in that it may discourage people from trying to earn more.所得税过高是有害的, 由于它能够使人不愿多赚钱.His paper is perfect except that there were some misprints.除了一些印刷错误之外, 这篇论文很好.4、作描画词宾语.No one can be sure what man will look like in a million years．谁也不知道一百万年先人类会变成什么样子.I am not certain whether I have met him before.我不能一定从前能否见过他.I'm sorry(that)you're ill.你病了, 我很忧伤.留意：that引导的从句在以下描画词前面作宾语, that可以省略anxious,aware,certain,confident,convinced,determined,glad,proud,surprised,worried,sorry, thankful,ashamed,disappointed,annoyed,pleased,hurt,satisfied,content,proud等.I'm sure(that)he'll help you.我确信他会协助你.I'm glad(that)he has passed the exam.我很快乐, 他考试及格了.5、it充任方式宾语, 真正的宾语---宾语从句后置.正如我们常用it充任方式主语替代主语从句一样, 我们也常用it用作方式宾语替代宾语从句,把真正的宾语从句后置.特别是带复合宾语的句子中.在这种结构中that不可省略.有以下几种状况：〔1〕believe,consider,declare,estimate,fancy,feel,find,guess,hear,imagine,know,make, prove,reckon,think,understand等动词接复合宾语〔宾语＋宾补〕时, 要用it作方式宾语. We find it difficult that we should finish the work on time．我发现我们按时完成任务有困难. She thinks it wrong that he didn't answer the phone．她以为他不接是不对的.〔2〕在like, enjoy, love,hate,take等表喜怒哀乐的动词, 后假定要跟宾语从句, 需跟方式宾语it.I hate it when people talk with their mouths full.我不喜欢人们满口饭说话.I like it that everyone passed the exam．都经过了考试我很喜欢.〔3〕由动词和介词构成的短语动词后接that宾语从句时, 要用方式宾语.We are thinking of it that we'll lend you some money．我正在思索借给你钱的事.I shall see to it that he is taken good care of when you are absent.你不在的时分我担任把他照顾好.〔4〕用于〝动词+宾语+介词短语〞的句型中.Keep it in mind that you have to be home by ten o’clock.要记住你得十点钟之前回家.We took it for granted that he would come.我们以为他来是当然的.6、不可直接跟that从句的动词.以下动词不可直接接that从句：ask,refuse,let,like,cause,force,condemn,admire,celebrate,entreat,dislike,overlook,love,hel p,take,forgive,bid,hate,hear〔听见〕,see〔看见〕,want〔想要〕等, 但可用it,the fact做媒介, 后接that从句；或接动名词、不定式.He overlooked it that he had made another mistake.(对)他无视了一件事, 他又犯了一个错误. He overlooked the fact that he had made another mistake.(对)He overlooked that he had made another mistake.(错)I admire it that they won the match.(对)I admire the fact that they won the match.(对)我很羡慕, 他们赢得了竞赛.I admire that they won the match.(错)7、that引导宾语从句的省略.〔1〕主句谓语动词是agree,argue,hold,learn,maintain,observe,contend,conceive,reckon, remark,state,suggest,assume,announce,calculate,indicate等时, 其后宾语从句的引导词that普通不可省略；主句谓语动词是hear,know,say,see,confess consider, declare,understand,propose等时, 其后宾语从句的引导词that可以省略, 也可以不省略；主句谓语动词是think,suppose,believe,presume,dare say等时, 其后宾语从句的引导词that可以省略.He suggested that we should set off at8o’clock tomorrow morning.他建议我们明天早晨8点走.(that不可省略)I think(that)this is very important.我以为这很重要.(that可省略)〔2〕当一个句子很复杂, 句中有多个状语时, that不可省略；或许一个句子有多个并列的宾语从句时, 特别第一个宾语从句特别长, 前面的宾语从句的that不可省略；谓语动词与that 从句之间有拔出语时, that不可省去.He said you needn't worry and that he would help you.他说你没有必要着急, 他会协助你的.〔said之后可省去that, 但第二个that不可省去〕We decide,as he has suggested,that we will start out tomorrow.就像他建议的那样, 我们决议明天动身.8、否认转移与省略〔1〕假设主句的谓语动词是〝think,consider,suppose,believe,expect,fancy,guess,reckon, imagine等, 主语是第一人称的普通如今时态, 其后的宾语从句如含有否认意义, 一定要把否认词一道主句谓语上, 从句谓语动词用一定方式.I don’t think he can do it better than me.我想他不会比我干得好.I don’t believe he treated the child like that.我置信他不会那样看待孩子的.〔2〕假设think,consider,suppose,believe,expect,fancy,guess,reckon,imagine等前有副词或表示强调的do,does,did；或许同其它词构成并列谓语；或许不以如今时出现；或许用作拔出语中.这时分不用否认转移.I really expect she didn’t say that to him.我确实希望她和睦他说那件事.I think and hope that he won’t be deceived by the man.我以为也希望他不会被那团体诈骗.〔3〕think,consider,suppose,believe,expect,fancy,guess,reckon,imagine等此类动词后, 在复杂答语中, 用so替代前文一定的宾语从句；假定替代一个否认的宾语从句, 用not或not…so替代前文整个从句.-I believe we've met somewhere before．我以为我们从前在哪见过.-No, I don't think so．没有, 我以为我们以前没见过.-Do you think it's going to rain over the weekend?你以为这周末会下雨吗?-I believe not．我以为不会.留意：hope只能说I hope not一种方式, 由于hope不能否认转移.9、时态的照应与语序.在宾语从句中只能用陈说句语序, 时态照应上要遵照以下三条原那么：〔1〕假设主句谓语是普通如今时或未来时, 宾语从句的谓语可依据意思的需求运用任何一种时态.Can you make sure where Alice has put the gold ring?你能确定爱丽丝把金戒指放到什么中央了吗?They have no idea at all where he has gone．他们一点也不知道他去了哪.Do you know who he was talking with at eight last night?你知道他昨晚和谁一同说话吗?〔2〕假设主句谓语是普经过去时, 宾语从句要用表示过去的某一时态.He said he would come to see us the next day.他说他明天未来看我们.I wanted to know whether he had been to Beijing.我想知道他能否去过北京.〔3〕假设宾语从句是表示客观理想、真理等, 不论主句是什么时态, 宾语从句一概用普通如今时.Dick asked Lucy how old she is．迪克问露斯她多大了.The teacher said the sun rises in the east．教员说太阳从西方升起.要点一、宾语从句要点之时态的照应1. 假设主句是普通如今时、普通未来时或祈使句时,宾语从句可依据状况运用各种时态.例如:I hear she is here today(she was here yesterday/she will be here tomorrow.)2. 假设主句是普经过去时,宾语从句应运用过去时态的某种方式.例如:He said he was watching TV(he had swept thefloor/ he would play football after school).3. 如宾语从句所表达的是客观理想、自然现象或迷信真理等,从句不受主句时态限制,仍用普通如今时.例如:Our teacher told us that light travels fasterthan sound.二、宾语从句要点之引导词的运用1. 当宾语从句由陈说句变化而来时,用that来引导从句,that常无详细意义,普通可省略.例: Lin Tao thought (that)the TV play was veryboring.2. 当宾语从句是由普通疑问句变化而来时,要用if或whether来引导从句.例如:David asked his mother if/ whether she liked thedinner last night.3. 当宾语从句是由特殊疑问句变化而来时,原句中的疑问词充任衔接代词(如who, whose, what, which)或衔接副词(如when,where, why, how),引导宾语从句.例如:Do you know what we can do on the island?I don’t know why Jane was late for school this morning.三、宾语从句要点之语序的陈说化宾语从句普通要用陈说句语序.例如:When did he leave? I want to know. →I want to know when he left.Does the shop close at six every day? Do you know? →Do you know if/ whether the shop closes at six every day?四、宾语从句要点之否认转移当主句的谓语动词为think, believe, suppose等动词,且主语为第一人称时,从句的否认要转移到主句上.例如:I don’t believe he is here on time, is he?I don’t think Tom is the best student in his class, is he?。
高中英语六种基本句型结构
英语学习中的六种基本句型结构英语的句式从表达形式上来看，形式多样且丰富多彩，但仔细观察后就不难发现，无论其怎样变化，它们大都基本保持了常见的六个句型结构。
也就是说，绝大多数英语句子都是由这六个基本句式演变、衍生而成的。
因此，掌握好这六个基本句型以及他们的基本用法，对于初学英语的同学们来说，就显得非常重要了。
这里做一简单列举与说明，希望对同学们的学习有所帮助：英语五种基本句型列式如下：一：ＳＶ（主＋谓）主语——动词二：ＳＶＰ（主＋系＋表）主语——动词——表语三：ＳＶＯ（主＋谓＋宾）主语——动词——宾语四：ＳＶｏＯ（主＋谓＋间宾＋直宾）主语——动词——宾语——宾语五：ＳＶＯＣ（主＋谓＋宾＋宾补）主语——动词——宾语——补语六： There be + 主语 + 其它一、句型 1：Subject (主语 ) ＋ Verb (谓语 )这种句型中的动词大多是不及物动词，常见的动词如： work ，sing，swim，fish，jump，arrive，come， die， disappear，cry，happen等。
如：1)Li Ming works very hard 。
李明学习很努力。
2)The little girl cried even harder。
小女孩哭得更厉害了。
3)The accident happened yesterday afternoon。
事故是昨天下午发生的。
1、The sun is rising。
2、 I'll try 。
3、Did you sleep well？(well 做状语，修饰不及物动词sleep)4、The engine broke down。
注意：在此句型中，有少数不及物动词表达被动含义，表达主语本身所具有的特性，不用被动语态。
1、The book sells well。
2、The window won't shut。
3、The pen writes smoothly。
宾语从句考点归纳
宾语从句考点归纳宾语从句考点归纳宾语从句是高考的一个热点，又是一个难点，近几年虽说出现的次数不多，但是不能掉以轻心。
下面就高考试题谈一下宾语从句的考点和后不接that 从句的特殊情况。
一) 宾语从句可分为三类：1. 由that 引导，常跟在say, see, hear, doubt, think, know, believe, suggest等动词后2. 由if 或whether引导，常跟在wonder 和say等动词后3. 由等连接代词或连接副词引导。
近年来高考主要侧重对连接词的正确选择和从句中应使用陈述语序以及从句中时态呼应的考查。
(1) 连接代词均在宾语从句中充当主语、宾语、或定语；连接副词均充当状语。
因此应正确分析题意，断定宾语从句中缺少何种成分，然后再做出选择。
1.A computer can only do __you have instructed it to do (NMET2001)A. howB. afterC. whatD. when答案：C 连接代词,在宾语从句中充当宾语。
(2) 宾语从句应同主句在谓语时态上保持一致。
主句谓语是现在时，宾语从句的谓语可以是任意时态；主句谓语是过去时，宾语从句的谓语必须是过去的某种时态，（宾语是客观真理时则无此限制）如：The reporter said that the UFO ___ east to west when he saw it. (NMET2000) A. was travelling B.travelled C.had been traveling D.was to travel答案：A 从题意可知宾语从句的动作应是当时正在发生。
(3) 有时为使句子简洁明快还可以借助动词不定式来简化宾语从句，使用连接代（副）词+to do结构, 如:I’ve worked with children before, so I know what ____in my new job. (NMET2000)A. expectedB. to expectC. to be expectingD. expects (B)(4)宾语从句应使用陈述语序，尤其要注意由who, which, what, when, where, why, ho w等引导的宾语从句。
英语宾语从句
英语宾语从句宾语从句（OBJECT CLAUSE）是名词性从句的一种。
在主从复合句中充当宾语，位于及物动词、介词或复合谓语之后的从句称为宾语从句。
宾语从句分为三类：动词的宾语从句，介词的宾语从句和形容词的宾语从句。
动词+宾语从句例如：Mum doesn't know if/whether he will go to Paris withher.妈妈不知道他是否要参加运动会。
注意：动词词组后面也可跟宾语从句。
例如：makesure确保makeup one's mind下决心keepin mind牢记2.介词+宾语从句例如：He is thinking about what he should bring with him.他正在考虑随身携带什么。
3.形容词+宾语从句例如：Mother is happy that he will go there with her.妈妈很高兴他愿意一起去那里。
这样的形容词有：sure,certain,glad,please,happy,sorry,afraid,satisfied,s urprised等。
基本构成宾语从句的三要素是：语序、连接词和时态。
语序：宾语从句用陈述语序(主谓语序)例如：I wonder when the train will come.我想知道火车什么时候到。
连接词有三种情况：1.that宾语从句为陈述句时，连接词常选择that，有时将that省略。
例如：Mothersays(that)she is ill.妈妈说她病了。
Mothersays(that)she'll be alright in couple of days.妈妈说她过两天就好了。
2.if或whether宾语从句由一般疑问句变来时，连接词常选择if或whether。
只用whether的情况：介词的宾语，whether…or not结构中不能用if替换。
例如：Motherdoesn't know if he can help her.妈妈不知道他是否能帮助她。
宾语从句用法详解
宾语从句用法详解一.宾语从句的定义置于动词、介词等词性后面起宾语作用的从句叫宾语从句。
宾语从句的语序必须是陈述语序。
谓语动词、介词、动词不定式，v.-in ｇ形式后面都能带宾语从句。
有些形容词(afｒａid,sｕre,glaｄ等）之后也可以带宾语从句。
二．宾语从句中引导词的用法在复合句中作主句的宾语，引导词有:连词：thａｔ（thａt 常可省略)，whether， if代词：wｈo, whose， wｈaｔ，which副词:wｈen ,whｅrｅ, ｈow, whｙ等。
(一)ｔhat引导的宾语从句（在非正式场合that可以省略)可跟that从句做宾语的动词有：saｙ, thiｎｋ, inｓist, wiｓh, hope， demａｎd, ｉmagin ｅ, woｎdeｒ, know, ｓｕppose, ｓee, belieｖe, agreｅ, ad ｍit, deny, expect, ｅｘｐlain, ｏrder，commaｎd， fｅel, dreaｍ, ｓugｇｅst, hear, meaｎ， notice， pｒefｅｒ, ｒeq ｕest， reqｕire, ｐropｏsｅ, declaｒe, rｅpｏrt等。
例句:Ｔhe boy beliｅves thａt he wiｌl travel tｈrougｈsｐａcｅｔo oｔher planeｔs．注意事项：当主句谓语动词是 thｉｎｋ, beｌiｅve， sｕpｐose, expect 等词,而宾语从句的意思是否定时，常把否定转移至主句表示。
例句:I ｄoｎ’t ｔhink it is right fｏr ｈiｍ to treat yｏu lｉｋｅ thａt.在以下情况中thａt不能省略1.当句中的动词后接多于两个由that引导的宾语从句时,第一个that可省，但后面的that不可省。
ﻫ例句：Ｈe sａiｄ（thａt） yｏｕwerｅ too young to undeｒstａndthe matter aｎd that hｅ was asked ｎoｔto tell you．2.当主句的谓语动词与tｈat宾语从句之间有插入语时，ｔhat一般不可省。
什么是宾语从句
什么是宾语从句？宾语从句是名词性从句的一种。
在主从复合句中充当宾语，位于及物动词、介词或复合谓语之后的从句称为宾语从句。
宾语从句分为三类：动词的宾语从句，介词的宾语从句和形容词的宾语从句.1宾语从句连接词★从属连词that 、if、whether需要注意区分的是：that引导表示陈述句的宾语从句,if和whether引导表示“是否”的一般疑问句的宾语从句.例如He told me that he would go to the college the next year.他告诉我他明年上大学.I don’t know if there will be a bus any more.我不知道是否还会有公交车.Nobody knew whether he could pass the exam.没有人知道他是否会通过考试.★连接代词who, whom ,whose ,what ,whoever ,whomever ,whosever, whatever, whichever需要注意的是：连接代词一般指疑问,但what, whatever，whichever除了指疑问外,也可以指陈述.例如Do you know who has won Red Alert game?你知道是谁赢得了红色警戒的游戏么？The book will show you what the best CEOs should know.这本书会告诉你最好的执行总裁该了解什么. Have you determined whichever you should buy, a Galaxy Note 7 or iphone 7?你决定好是买三星7还是iphone 7了吗?★连接副词主要有when,where,why,how,whenever,wherever,however等与主语从句的引导词，一毛一样例如He didn’t tell me when we should meet again.他没有告诉我什么时候我们能再见面.Could you please tell me how you use the new machine?你能告诉我怎么用这个新的机器了吗?None of us knows where these new parts can be bought.没有人知道这些的新的零件能在哪里买到.2哪些宾语从句不可以省略引导词that★表达人主观意见的动词add, agree, announce, argue, assume, complain, decide, hold, indicate, insist, intend, learn, promise, point out, remark, suggest, state等之后的宾语从句的引导词that需保留。
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be of 结构与介词宾语从句一、“ (be)+of+名词”用法请看课本中的句子：Freedom fighters can be found everywhere, and they are of all times.（Unit 14）自由战士在各个地区，各个时期都存在。
该句的后半句，采用了be of接名词来说明句子的主语所具有的性质或特征。
这是一种很常用的句式。
be of 后可接两种不同性质和类型的名词，他们的意义大相径庭区别明显相差很远。
1，be of 后可接value, importance, use, help, significance, interest, benefit 等一些抽象名词，这样的结构用来说明句子主语所具有的作用、重要性或意义。
在这类抽象名词前我们可用一些形容词，如: great, little, some, any, no, not much等来修饰抽象名词，用以说明程度。
“be of+ 抽象名词（value，importance，use，help，interest 等）”相当于“be + 该抽象名词相对应的形容词”。
其中of 表示“具备；具有”，of 不可以省略。
例如：They are of great help to learners of English.他们对英语学习者来说是很有帮助的。
The press conference seems of great importance.这个新闻发布会看来很重要。
I don't want to hear what you are saying. It is of no interest to me. 我不想听你说,我对此不感兴趣。
(of no interest=not interesting)Doing morning exercises will be of benefit to your health.做早操对你的健康有利。
Coal is of great importance to the development of industry.煤对工业发展是相当重要的。
(of great importance=very important)The book will be of great value to students of history.这本书对学历史的学生将很有用。
The meeting is of great importance.这个会议很重要。
This medicine is of no use.这种药无效。
This matter is of no significance.这件事无关紧要。
在“be of + 抽象名词”结构中，其意义就相当于“be + 与该抽象名词同词根的形容词”。
如：be of value→be valuable,be of help→be helpful,be of use→be useful, be of importance→be important,be of significance→be significant等。
它们之间可以相互转换，因此，以上各例句可转换为：They are very helpful to learners of English.This book is very valuable to students of history.This meeting is very important.This medicine is useless.This matter is insignificant.2. be of +名词，还可用来说明句子主语在度量，大小，颜色，类别等方面的特征。
这类名词有colour, age, size, height, weight, shape, type，kind等。
在这类名词前常用different,all, the same，this, that, a(n) + 形容词等词来修饰或说明。
“be of+ 表示年龄（age ）、大小（size ）、颜色（color ）、重量（weight ）、高度（height ）、价格（price ）、意见（opinion ）、形状shape ）种类kind ）（、（和方法way ）（等的名词” 表示，“具有……” ，说明主语的特征。
例如：When I was of your age，I entered the war.当我是你这个年龄的时候，我就去打仗了。
These flowers are of different colors.这些花的颜色都不同。
注意：在此结构中，如果后面的名词前有不定冠词 a / an ，则这个冠词相当于the same .例如：The two boys are of an age.The two boys are of the same age.这两个男孩同龄。
The two rooms are of a size .The two rooms are of the same size.这两个房间大小一样。
Coins may be of different sizes, weights, shapes, and of different metals.硬币可能在大小、重量、形状和铸造的金属方面都有所不同。
These pens are of many different colours.这些笔有许多不同的颜色。
He is of the same weight as his brother.他和他弟弟一样重。
注意：此类句型中的某些表达可以转换成“be + different +in + 抽象名词” 的形式。
“be + the same + in + 抽象名词” 的形式。
如:Coins may be different in size, weight, shape, and metal.These pens are different in colour.The two rooms are the same in size.The productive forces were of a very low level.生产力处于非常低的水平。
City Lights and Modern Times were of this kind.“城市之光”和“摩登时代”就是这种影片。
3、be of 还可以表示所属关系，相当于belong to .例如：China and India are of the third world. 中国与印度同属于第三世界。
Workers and peasants are of one family. 工人和农民是一家。
4、“be of + 物质名词”，表示主语是由某种材料制成或由某种成分构成，相当于be made of，be built of，be made up of 等。
例如：The necklace is （made）of glass. 这条项链是由玻璃制成的。
Our class is （made up）of over 50 students. 我们班有50 多个学生。
5、“be of + 形容词最高级=表示最，，之一”，相当于be one of .例如：His temper is of the quickest.他的脾气是最急躁的。
Mr Liu is of the best teachers in our school. 刘老师是我们学校最好的老师之一。
6、“be of+名词”也可以表示“来源、组成”。
如：He was of a poor peasant family. 他出身贫农家庭。
The committee is of seven people. 该委员会由7 人组成。
二、“ (be)+of+名词”结构的句法功能1．作表语：如：Their experience is of great significance．他们的经验是很意义的。
This problem is of different nature．这个问题是属于不同性质的。
Good intonation is of great importance．语调好很重要。
This dictionary is of great help．这本词典是很有帮助的。
Don't throw anything that may be of use.不要把任何有用的东西扔掉。
Flowers are of many colours.花的颜色很多。
New Zealand wine is of high quality and is sold all over the world.新西兰葡萄酒质量很高,行销全世界。
2. 作定语。
例如:Your sister is a girl of wisdom.你妹妹是一位有智慧的女孩。
(=Your sister is a wise girl.)We don't think there is anything of interest in your pictures. 我们认为你的画并没有什么有趣的地方。
3．作宾语补语：如：I consider what he said of little importance．我认为他所说的并没有什么重要性。
We all think his words of great importance．我们都认为他的话非常重要。
He found himself of absolutely contradictory pointsof view. 他发现自己处于完全矛盾的观点之中。
4．作状语：如：Man must，of necessity，die．人必然会有一死。
5、of＋（one’s）own ＋V-ing结构这一结构表示某事由某人（亲自）完成。
其中be of后也可接物主代词加own或名词所有格加及物动词的V-ing主动形式。
如：The book is of my own choosing．这本书是我自己挑选的。
The cotton is of our growing．棉花是我们种的。
The house is of Tom’s repairing．这房子是汤姆修的。
The bridge is of the villagers’ own building．这座桥是村民们自己建的。
介词宾语从句We are talking about whether we admit students into our club.我们正在讨论是否让学生加入我们的俱乐部.The new book is about how the manned spaceship was sent up into space. 这本新书是关于载人航天飞船是如何升入太空的.The boy was interested in whatever he saw here.那孩子对在那里看到的任何事物都感兴趣。