校训：给自己希望，给别人希望！1
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校训：给自己希望，给别人希望！3
校训：给自己希望，给别人希望！4
校训：给自己希望，给别人希望！5
校训：给自己希望，给别人希望！6
校训：给自己希望，给别人希望！7
表语从句和同位语从句 Ⅰ语法填空单句训练（用适当的连接词填空） 1.I have made a promise ________I will buy her many gifts. 2.He is quite able; the question is ________he is willing to do such a job. 3.The news ________Tim has bought a big house in Beijing is true. 4.________ I can’t understand is ________ so few students are interested in my lecture. 5.We don’t care about the problem ________oil is expensive. 6.The good news is ________they have arrived there in time. 7.The fact ________ the money has gone does not mean it was stolen. 8.The only doubt is ________has taken away my e-dictionary. 9.The question ________ the actress was killed is still under discussion. 10.Our school is not________ it used to be ten years ago. Ⅱ单项选择 1.Some experts think the wolf’s team spirit for survival is ________needed in today’s competitive culture. A. that B. what C. which D. how 2. --- He is eager to try something he has never tried before. ---Oh. I see. That’s ________he is different from others. A. when B. where C. how D. what 3. Tomorrow is Tom’s birthday. Have you got any idea ________the party to be held? A. what B. which C. that D. where 4. The reason ________his coming to Beijing was ________he wanted to study Chinese Medicine. A. for; what B. why; that C. why; because D. for; because 5. The moment ________Leo will never forget is ________Mr. Green gave him a lot of valuable advice on how to improve his writing. A. that; when B. that; that C. when; that D. when; where 6. --- Mrs. Jackson, Dr Ellis i8s here. How is that new tooth? ---Not so good, doctor, that’s ________ I’m calling about. A. when B. why C. how D. what 7. The question remains ________we should accept their invitation. A. whether B. that C. if D. why 8. Honesty is a kind of quality and that’s ________it takes to communicate with others successfully. A. what B. why C. how D. which 9. What the boss really doubts is ________his employees will go on working in the factory. A. that B. what C. when D. whether 10. ---I rang you at about nine, but there was no reply. --- Oh, that was probably ________ I was seeing the doctor. A. why B. when C. what D. that 11. We all know the truth ________there is air, water and sunlight, there are living things. A. where B. wherever C. that D. that where 12. The professor gives every one of us the impression ________he is a real expert in his field. A. which B. what C. where D. that 13. The last time we had great fun was ________ we were visiting the Water Park. A. where B. how C. when D. why 14. ---Always lock your bike to a bike rack, even if you are only away for a minute. ---That is ________ I agree with you. A. What B. Where C. that D. when
从句小结 从句总述： 从句有主语从句、表语从句、宾语从句、同位语从句、定语从句和状语从句6类。 由于主语从句、表语从句、宾语从句及同位语从句在句子的功用相当于名词，故而这4种从句又通称名词性从句。 1.主语从句（Subject Clause）：用作主语的从句叫主语从句。引导主语从句的关联词有从属连词、疑问代词、疑问副词、缩合连接代词、缩合连接副词等。 2.表语从句（Predicative Clause）：用作表语的从句叫表语从句。引导表语从句的关联词与引导主语从句的关联词大都一样。 3.宾语从句（Object Clause）：在句子中起宾语作用的从句叫做宾语从句.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. 4. 同位语从句（Appositive Clause）：在复合句中用作同位语的从句叫同位语从句。它一般跟在某些名词后面，用以说明该名词表示的具体内容。其关联词多为that。 状语从句还可以分为条件状语从句、原因状语从句、方位状语从句和时间状语从句等。 宾语从句 学习宾语从句要抓住三要素：时态、语序、连接词。 一：时态和语序 1·主句用一般现在时，从句可用任意时态。 2·主句用过去时，从句用过去某个时态。 3·主句用过去时，从句是真理时，只用一般现在时。 语序：宾语从句只能用陈述句语序，坚决不能用疑问句语序。 二：连接词 ①从属连词 连接宾语从句的从属连词主要有that，if，whether. that引导表示陈述句的宾语从句,而if和whether引导表示“是否”的宾语从句. 例句： He told that he would go to the college the next year 他告诉我他下一年上大学. I don’t know if there will be a bus any more. 我不知道是否还会有公交车. ②连接代词 连接代词主要有who, whom ,whose ,what ,whoever ,whomever ,whosever, whatever, whichever等. 连接代词一般指疑问,但what, whatever除了指疑问外,也可以指陈述. 例句： Do you know who has won Red Alert game 你知道谁赢了这一局红警游戏吗 ③连接副词 连接副词主要有when,where,why,how,whenever,wherever,however等. 例句： 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.
高中同位语从句专项语法习题 1.The fact ____ she works hard is well known to us all. A.that B.what C.why D.which 2.The fact ____ he was successful proves his ability. A.that B.what C.which D.why 3.The news ____ he was kidnapped surprised us greatly. A.what B.that C.why D.when 4.His suggestion ____ the meeting be delayed was turned down. A.which B.that C./ D.it 5.I have no idea ____ he will start. A.when B.that C.what D./ 6.I've come from the government with a message ____ the meeting won't be held tomorrow. A.if B.that C.whether D.which 7.The thought ____ he might fail in the exam worried him. A.when B.which C.what D.that 8.The order ____ the prisoner be set free arrived too late. A.which B.whether C.that D.what 9.The nurses are trying their best to reduce the patient's fear ____ he would die of the disease. A.that B.as C.of which D.which 10.He often asked me the question ____ the work was worth doing. A.whether B.where C.that D.when 1-5 AABBA 6-10 BDCAA
Ⅰ.用适当的连接词填空 1．The trouble is that I can’t find my way. 2．We are discussing what we shall do to help the poor. 3．It depends on whether you can do the work well. 4．I wonder how you are getting on with your studies. 5．He got caught in the heavy traffic.That was why he was late. 6．Energy is what makes things work. 7．We didn’t set out; it was because we wanted to wait until our mother came back. 8．We consider it necessary that he should improve his pronunciation. Ⅱ.单项填空 1．—Can you join us in the party this evening? —Well, that depends on ________ I can finish my report before then. A．whether B．if C．that D．when 解析：选A。句意：“你今天晚上能参加我们的聚会吗？”“嗯，那得看到时候我的报 告能不能完成。”连词whether表示“是否”，引导宾语从句。if表示“是否”，不引导介词的宾语从句；that没有意义；when“当……时”。 2．I don’t think ________ possible ________ one can master a foreign language without much memory work. A．it; whether B．it; that C．which; whether D．this; that 解析：选B。it在句中作形式宾语；possible作宾补；真正的宾语是that引导的宾语从句。 3．He said________he had eaten nothing for a long time and________he was very hungry. A．that; 不填B．不填；that C．不填；不填D．what; what 解析：选B。考查宾语从句中that的省略问题。said后接了两个that引导的宾语从句，其中第一个从句中的that可省略，后面的that不可省略。 4．The reason for his coming to China was ________ he wanted to study Chinese medicine. A．that B．what
同位语从句。 一. 同位语从句定义。 在复合句中用作同位语的从句叫同位语从句。它一般跟在某些名词/先行词后面，用以说明该名词/先行词表示的具体内容。 二. 同位语从句的名词/先行词。 1．可以跟同位语从句的名词/先行词通常有news，idea，fact，promise，question，doubt，thought，hope，message，suggestion，words（消息），possibility等（一般的“抽象”名词都可用）。 例：I’ve come from Mr wang with a message that he won’t be able to see you this afternoon． 我从王先生那里来，他让我告诉你他今天下午不能来看你了。 2. 在某些名词（如demand,wish,suggestion,resolution等）后面的同位语从句要用虚拟语气 例：There was a suggestion that Brown should be dropped from the team. 有一项建议是布朗应该离队。 3．有时同位语从句可以不紧跟在说明的名词/先行词后面，而被别的词隔开。 The thought came to him that maybe the enemy had fled the city． 他突然想起可能敌人已经逃出城了。 三. 同位语从句的引导词。 1.连词that引导，引导同位语从句的that不能省略，which不能引导同位语从句。 例：The idea that you can do this work well without thinking is quite wrong. 你认为不动脑筋就能做好这件工作的想法是完全错误的。 2. 连词whether引导，if不能引导同位语从句。 例：The question whether we should call in a specialist was answered by the family doctor. 我们是否请专家由家庭医生来定。 3.其它引导词引导，连接代词what,who,whom,whose，引导同位语从句。 1).I have no idea what size shoes she wears.我不知道她穿几号的鞋。 2).The question who will take his place is still not clear. 问题谁来接替他的位置还不是很明朗。 4. 连接副词when,where,how,why 引导。 例：We haven’t yet settled the question where we are going to spend our summer vacation. 到哪儿去度暑假，这个问题我们还没有决定。 四. 同位语从句与定语从句的区别。 1. 意义的不同。 同位语从句是用于说明所修饰名词的具体内容的，它与被修饰词语通常可以划等号；而定语从句是限制所修饰名词的，它的作用是将所修饰的名词与其他类似的东西区别开来： We are glad at the news that he will come. 听到他要来这个消息我们很高兴。（news的内容就是that he will come，故that引导的是同位语从句） We are glad at the news that he told us. 听到他告诉我们的这个消息我们很高兴。（that从句是限制the news的内容的，即我们高兴只是因为他告诉的这个news而不是其他的news，故that从句为定语从句） 2.引导词的不同。 what,how,whatever 等可引导同位语从句，但不引导定语从句。Which可引导定语从句但不引导同位语从句。3. 引导词的功能上的不同 that引导同位语从句时，它不充当句子成分，而引导定语从句时，它作为关系代词，要么充当定语从句的主语，要么充当定语从句的宾语。如上例that he told us中的that就充当told的宾语。 4. 被修饰词语的区别。
宾语从句和表语从句详解 名词性从句指的是在整个句子中起名词作用的从句。这种从句可以做主语、宾语、表语、同位语等，所以这类从句包括主语从句、宾语从句、表语从句和同位语从句。各种名词性从句的结构都是相同的，即由if，whether，that和各种疑问词充当连接词，后接陈述语序。 例如：What they are doing seems very important．（主语从句） 他们在做的事似乎很重要。 My hope is that he will be the best student in the class．（表语从句） 我的愿望是他能够成为班上最好的学生。 Nobody knows who he is．（宾语从句） 大家都不知道他是谁。 I don't like the idea that money is everything．（同位语从句） 我不喜欢金钱就是一切这一观点。 引导名词性从句的连接词中，除了that，if和whether之外其它的都作从句中的一个成分。 【宾语从句】 在句子中作动词或介词宾语的从句叫做宾语从句。引导宾语从句的词有连词that，whether，if；连接代词who，which，what以及其强调形式whoever，whichever，whatever；连接副词when，where，why，how等。 例如：Do you know where the Greens live I have no interest in how rich he is． 宾语从句主要用于下面五种结构： 1．由that引导的宾语从句（that 引导宾语从句时，特别是在口语中可省略） The boy believes that he will travel through space to other planets． that引导的宾语从句多用于say，think，insist，wish，hope，demand，imagine，wonder，know，suppose，see，believe，agree，admit，deny，expect，explain，order，command，feel，dream，suggest，hear，mean，notice，prefer，request，require，propose，declare，report等后。 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。例如：I don’t think it is right for him to treat you like that．（＝I think it is not right for him …．） that不能省略的情况： （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。如： He said （that）you were too young to understand the matter and that he was asked not to 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。如： Just then I noticed，for the first time，that our master was wearing his fine green coat and his black silk cap． （3）当that从句是双宾语中的直接宾语时，that不可省。如： I can’t tell him that his mother died． 2．由特殊疑问词引导的宾语从句 这样的宾语从句实际上是由特殊疑问句变化而来的，宾语从句要用陈述句语序。用于这种结构的动词常常是：see，say，tell，ask，answer，know，decide，show，find out，imagine，suggest，doubt，wonder，discover，understand，inform，advise等。
简单句与宾语从句、表语从句、同位语从句英语语法培训教材
1简单句与宾语从句 (2) 1.1陈述句作宾语 (2) 1.2一般疑问句作宾语 (3) 1.3特殊疑问句作宾语 (3) 2简单句与表语从句 (5) 2.1陈述句作表语 (5) 2.2一般疑问句作表语 (5) 3简单句与同位语从句 (6) 3.1陈述句作同位语 (6) 3.2一般疑问句作同位语 (7) 3.3特殊疑问句作同位语 (7) 本章小结 (8) 1简单句与宾语从句 名词从句的本质是用三种句子（陈述句、一般问句和特殊问句）充当四种句子成分（主语、宾语、表语和同位语）。所以，当用三种句子充当另外一个句子的宾语时，就构成了宾语从句。因此，本节内容安排如下： 1.1陈述句作宾语 1.2一般疑问句作宾语 1.3特殊疑问句作宾语 1.1陈述句作宾语 把“that＋陈述句”这一结构放在宾语的位置即构成宾语从句。请看例句： 1We know(that) the world is round.我们知道，地球是圆的。 2I think(that) a sound knowledge of grammar is indispensable to good writing.我认为扎
实的语法功底对良好的写作极为重要。 需要注意的是，只有宾语从句中的that才可以省去（在不影响对句意的理解的情况下），而主语从句、表语从句和同位语从句中的that一般不能省去。 1.2一般疑问句作宾语 把“whether/if＋陈述句”这一结构放在宾语的位置即构成宾语从句。请看例句： 1I don't know if/whether he needs my help我不知道他是否需要我的帮助。 2No one knew whether or not interest rates would rise 没有人知道利率是否会提高。 这里原来的一般问句是would interest rates rise，变成陈述句语序后成为interest rates would rise，然后为了保留疑问的意义又添加了whether or not，于是便有了whether or not interest rates would rise，在主句的谓语knew后面作宾语，即构成宾语从句。需要提醒的是，因为一般不说if or not，所以这里的连词不宜用if，而要用whether。 注意：只有宾语从句才可以用if引导，主语从句、表语从句和同位语从句一般都要用whether引导。 1.3特殊疑问句作宾语 把特殊疑问句变成陈述句语序后放在宾语的位置即构成宾语从句。请看例句： 1I have not decided whom I should vote for我还没有决定该投谁的票。 这里的特殊疑问词whom是作vote for的宾语，所以需将原来的倒装句whom should I vote for调整为陈述句语序whom I should vote for，然后作主句谓语decided的宾语，即构成宾语从句。 2No one knows exactly how speech began没有人确切地知道语言是如何产生的。 这里的特殊疑问词how是作began的方式状语，所以需将原来的倒装句how did speech begin调整为陈述句语序how speech began，然后作主句谓语knows的宾语，即构成宾语从句。 3Could you tell me where the post office is? 你能告诉我邮局在哪里吗？
初中英语语法同位语从句专项讲解与训练(一) 概念 一般来说，在主从复合句中,用作同位语的从句叫同位语从句。它通常跟在某些名词之后，用以说明或解释该名词表示的具体内容。可以跟同位语从句的名词通常有： advice, decision, fact, hope, idea, information, message, news, promise, p roposal, reply, report, suggestion, word（消息）， problem， question, doubt, thought等。例如： They were delighted at the news that their team had won. 当听到他们队获胜的消息时，他们欣喜若狂。 Where did you get the idea that I could not come？你从哪儿听说我不能来？ 有时同位语从句可以不紧跟在被说明的名词后面，而被别的词隔开。如： The thought came to him that Tom might have returned the book. 他突然想起汤姆可能已经还了书了。 （二）引导词 请仔细观察下列句子，注意从句引导词的用法。 1. The news that Mr. Li will be our new English teacher is true.
2. He hasn’t made the decision whether he will go there. 3. The question who should do the work is being discussed at the meeting 4. I have no idea what the boy is doing in the next room now. 5. We haven’t yet settled the question where we are going to spend our s ummer vacation this year. 6. I have no idea how I can get to the railway station. 7. I have no idea when he will be back． [小结归纳] ① that引导同位语从句时无词义，也不充当任何成分，但通常不可以省略，如句1； ② whether引导同位语从句时意为“是否”，通常不能用if来代替,如句2; ③连接代词who, what等可以引导同位语从句，如句3， 4； ④连接副词where, how, when等可以引导同位语从句，如句5，6，7。 (三) that 引导的同位语从句和定语从句 ①意义不同：同位语从句用来进一步说明前面名词的内容；而定语从句用来修饰、限定前面的先行词。试比较： 1. The news that our team has won the final match is encouraging. 2. The news that you told us is really encouraging.
名词性从句名词性从句（主语、表语、宾语、同位语从句） （一）主语从句 1．定义：用作主语的从句叫做主语从句。 2．2．构成：关联词+简单句 3．3．引导主语从句的关联词有三类： 4．(1) 从属连词that。如： That they were in truth sisters was clear from the facial resemblance between them. 很明显，她们确是亲姐妹，她们的脸型很相似。 (2) 从属连词whether。如： Whether he’ll come here isn’t clear. 他是否会来这里还不清楚。 (3) 连接代词who, whom, whose, what, which, whoever, whatever, whichever 连接副词 where, when, how, why。如： What she did is not yet known. 她干了什么尚不清楚。 解释： 1．主语从句能用it作形式上的主语。常以it作形式主语的句型有： A. It+be+形容词(obvious, true, natural, surprising, good, wonderful, funny, possible, likely, certain, probable, etc.)+that从句。如： It is certain that she will do well in her exam. 毫无疑问她考试成绩会很好。 B. It+be+名词词组(no wonder, an honour, a good thing, a pity, no surprise, etc.)+that 从句。如： It’s a pity that we can’t go. 很遗憾我们不能去。。 C.It+seem, happen等不及物动词及短语+that从句。如： It seems that Alice is not coming to the party at all. Alice似乎不来参加晚会。 D.It+doesn’t matter (makes no difference, etc.)+连接代词或连接副词引起的主语从句。如： It doesn’t matter whether she will come or not. 她是否来这无关紧要。 F. 当that引导的主语从句出现在疑问句中时，要以it作形式主语，而把主语从句后置。如：Does it matter much that they will not come tomorrow? 他们明天不来很要紧吗？ G. 当主语从句出现在感叹句中时，要以it作形式主语，而把主语从句后置。如： How strange it is that the children are so quiet! 孩子们这么安静真奇怪！ 2．注意连接代词whoever, whatever, whichever等引导主语从句的含义 Whoever comes will be welcome. (whoever=the person who) 来的人将受到欢迎。 （二）表语从句 1．定义：用作表语的从句叫做表语从句。 2．构成：关联词+简单句 3．引导表语从句的关联词的种类：
主语从句与宾语从句 一、名词性从句是四位从句的总称：主语从句、宾语从句、同位语从句、表语从句。这些从句都起到类似于名词的作用。 主从：一个句子充当大句子的主语，就叫主语从句。例如； What I need is money.(主语是What I need作大句的主语) It was not obvious that water is fundamental to the development of life.（It是形式主语，真正的主语是that 从句。） 主语从句的位置有两种，一种是放于句首；一种是用It 作形式主语，从句被放后面。 二、宾语从句：一个小句子充当大句子的宾语。 He asked me how old I was . She took it for granted that I’d be back home an hour ago.（It 作形式宾语，真正的宾语是后面的that从句。） 考点一：语序 What I want to do is to go home immediately.陈述语序。 I asked where the famous restaurant was .陈述语序。 名词性从句的语序应该是陈述句语序。 删除疑问语序（be /助动词、情态动词+主语） 考点二：引导词 That（没成分） That the earth moves around the sun is known to all.(that 引导的句子作大句子的主语，that不能丢。) Whether /if （有时互换，主语从句只能用wheather引导，不能用if .可用if 的地方都能用wheather。） Whether the meeting will be put off depends on the weather . 疑问代词：what,who, whom,which,whose 在从句中有成分 What he has is just money.（在从句中有成分作宾语） 疑问副词：where ,when,why,,how在从句中有成分 Why he didn’t attend class is not know yet. That：引导名词性从句时无成分，无词义，有时可以省略。 Whether /if引导名词性从句时无成分，是否。 特殊疑问代词：主，宾，表，定。 疑问副词：状。 考点三：no matter+疑问词（what）VS疑问词（what）+ever Whatever he says must be put down . No matter what he says/Whatever he says,I will not change my mind. 意思相同，但语法不一样。第一句主从，第二句让步状语从句。以ever开头的引导主从或者状语从句，而以no matter 开头的不能引导名词性从句，只能引导状语从句，所以选ever 就一定对。 考点四：建议、命令、要求类+宾从 The doctor suggested that an operation (should)be done immediately on the patient. 初中讲过当主句是一般过去时态的宾语从句：主过去，从句也过去。当主句的动词是建议、命令、要求类的动词时，后面的宾从必须是should+动词原形且should可以省略。此时不管。主语是谁，不管主句是什么时态都不能改变动词是原形的要求.once表示建议、命令、要求类的动词suggest,advise,propose,demand,require,insist,request,ask,command,order后面如果后
同位语从句——语法专题讲解
高中英语语法专题讲解 专题二、同位语从句 一、同位语从句概述 同位语从句是用以解释说明某一名词内容的从句，常见的可以被同位语从句修饰的名词有：belief, chance, doubt, hope, idea, news, opinion, thought, promise等。引导同位语从句的词有连词that, whether和副词how, when, where等。 二、同位语从句 （1）同位语从句是意义完整的陈述句时，用连词that引导。注：that在从句中不充当任 何成分，只起连接作用，通常不省略。 eg：I got the news that he would come to see me the next week. （2）同位语从句是疑问句时，应根据语境选用who, when ,where, how, whether(不能用if) 等词来引导。 eg：The question who is the best for the job requires consideration. （3）分隔式同位语从句：当主句的谓语较短，而同位语从句较长时，为了使句子保持平 衡，常把同位语从句后置。
eg：An idea came to him that he could buy her a diamond ring. （4）后面常跟同位语的词有：doubt, fact, hope, idea, message, news, possibility, promise, question, suggestion,truth,thought,warning,wish等。 ●注：advice, order, suggestion等词表示建议、 命令的词后的同位语从句中的谓语动词须 eg：He made the suggestion that the meeting(should) be put off. 三、同位语从句与定语从句的区别 （1）所表达的内容不同：同位语从句和定语从句一般是放在某一名词后面，但同位语从 句是对该名词的解释和说明，而定语从句 是对该名词的修饰，说明它的性质特征。eg：The fact that he presented was a strong proof. The fact that she hadn’t said anything surprised us all. （2）在句中所起的语法作用不同：引导定语从句的that是关系代词，它的作用是连接主
Grammar—appositive clauses＆predicative clauses 名词性从句之同位语＆表语从句 同位语从句： I.明确概念与特征： 1. 同位语从句常放在名词之后，用来补充说明名词的具体内容。常用来接同位语从句的名词有news, idea, promise, question, doubt, wonder, fact, hope, wish, suggestion, advice, possibility, message, word, belief, information等。常用来引导同位语从句的连词有that, what, who, whether以及连接副词where, when, why, how 等。如： The news that their children couldn’t come back on time worried all the parents. I had no idea when the storm would end. 2. 不过有时候为了保持句子结构平衡，同位语从句也不一定直接放在名词后，而会出现隔离情况。如： Word came that the sports meet had been put off. Suddenly a good idea occurred to me that I could buy my teacher a gift. 3. 同位语从句前名词的数 同位语从句前的名词通常用单数形式，并且往往带有限定词加以修饰。如：Where did you get the idea that I could not come? Give me your promise that you will come to our party this evening. Exciting word came that I passed the exam. II. 正确选用引导词 一般来说根据句意来确定相应的引导词，并且从句要用陈述句的语序。 1.that引导同位语从句时在句中不作任何成分，但不可省略； The idea that we play football after class is great. 2.在表示是否的意思时连词只能用whether而不能用if； The question whether you can go to an ideal university depends on your effort. 3.从句若缺少主语,宾语或定语用连接代词（what, who, whom, whose, which），若缺少状语用连接副词（when, where, how, why）引导。 I have no idea which mobile phone is the best—it’s a matter of personal taste. At last I made a decision that I would never come back again. The question what we should do with this situation is under discussion. All of us had no idea why he refused our help. The question why he didn’t attend the meeting puzzled us. We can’t solve the problem how we can travel faster than light. 4.在名词doubt“怀疑”后的同位语从句用whether连接；在no doubt“不怀疑”之后的同位语从句用that连接。例如： There is no doubt that we will win the final match. I have a doubt whether he will finish the job on time. III. 注意从句中的时态 一般来说同位语从句的时态要和主句的时态保持一致。但在表示请求、命令、建议等意思的名词后的同位语从句中的谓语动词应用(should) do，(如demand, wish, suggestion, advice，order等)后面的同位语从句要用虚拟语气。如 I have no idea when he will be back. I accepted my father’s advice that I (should) apologize to my friend.