Whether it be 句式中的语法
名词性从句知识点考点

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表语从句或同位语从句在某些表示"建议,请求,命令" 表语从句或同位语从句在某些表示"建议,请求,命令" 在某些表示 等意义的名词后同样需用" 动词原形" 等意义的名词后同样需用"(should) + 动词原形"来构成 谓语.这类名词有: 谓语.这类名词有: advice,desire,decision,idea,order,plan,proposal,recommendation,request,suggestion等.如: 等 My suggestion is that we (should) read English newspapers to improve our English. The teacher suggested that we (should) have a rest. It is necessary that he (should) come to see us.
名词性从句知识点考点
考点一,名词性从句的语序问题. 考点一,名词性从句的语序问题. 考点二, 作为形式主语 形式宾语的用法 形式主语或 的用法. 考点二,it 作为形式主语或形式宾语的用法. 考点三, 的区别. 考点三,考查 that 与 what 的区别. 考点四,考查whether 与 if 以及与 that 的区别. 的区别. 考点四,考查 考点五, 疑问词+ever 引导的名词性从句 考点五,考查 疑问词 的区别. 以及与 no matter + 疑问词 的区别. 考点六, 考查名词性从句的 虚拟语气 问题. 考点六, 问题.
7.This is the main use that the scientists make ___of natural resources. D A.it B.which e D.\ 8.Mr. Cooper wanted to buy the house and he told me that ___the house C cost, it would be ___it. A.however\worth B.how much\worth C.whatever;worth D.what\worthy 9.Mr. Tom enjoyed___again by working in the factory because he often C hates____while staying alone at home all day long. A.him\that B.it\it C.himself\it D.himself\that B 10.___sometimes keeps her awake at night___Tom is getting more and more quiet at home. A.That\which B.It\that C.Whether\what D.What\that B 11.---Do you know___Mr.Jack's address is? ---He may live at No.25 or No.52 of Changan Street.I'm not sure of____. A.where\which B.what\which C.where\what D.what\where
形式主语的四种句型

形式主语的四种句型作为英语语法中重要的概念之一,形式主语在句子中所起的作用不可小觑。
它通常指代作为主语的一些短语,以便避免出现复杂的结构和重复过多的词语。
在句子中,形式主语的位置一般放在句首,可以是it,there,what以及whether。
接下来,我们将详细介绍四种典型的形式主语句型,并举例说明它们在日常交际中的应用。
一、以it为形式主语的句型1. It + be + 形容词 + (for someone) + to do something这种句型用于表达特定行为或事物对某人来说是容易或困难的,常用形容词有easy/hard, important/unimportant, convenient/inconvenient等。
例如:It is important for us to learn English well.(It 对应的是后面的不定式短语“to learn English well”)It is inconvenient for him to come here by bus.2. It + be + 名词 + to do something这种句型强调所作的行为或事情的性质和特点,常用名词有fact, truth,pity, shame, joy等。
例如:It is a fact that smoking is harmful to health.It is a shame to refuse help from a friend in need.3. It + be + 形容词 + that从句这种句型用于表达一种事实或假设情况的存在,以及所涉及的具体内容或状态,常用形容词有clear, evident, strange等。
例如:It is strange that he doesn't like chocolate.It is clear that the Internet has greatly changed our life.二、以there为形式主语的句型1. There + be + 名词 + (地点状语)这种句型常用于描述物品、人员、场所等存在的情况,常用名词有book, pen, people, hospital, school等。
“It”作形式主语和形式宾语用法详解

新希望英语语法精讲——-———“It"作形式主语和形式宾语“It”作形式主语和形式宾语的用法详解It作形式主语和形式宾语用法,是英语学习的主要语法项目之一。
无论是单项选择,还是完行填空,it 用法始终是反复考查的重、热点之一。
现将it在特殊句型中作形式主语和形式宾语用法,进行如下归纳分析,以供学习参考。
一、It 用作形式主语当不定式(短语)、动名词(短语)或从句在某个句子中作主语时,为保持句子结构前后平衡,避免头重脚轻,因此常用it作形式主语置于句首,而将真正的主语放在句尾。
此时it只起先行引导作用,本身无词义。
e.g. It is wrong to tell a lie. (说谎是错误的。
) 〔It为to tell a lie的形式主语〕It is no use arguing about it. (争吵是没用的.)〔It为arguing about it的形式主语〕It is uncertain who will come. (谁要来还不确定。
)〔It为who will come的形式主语〕It 作形式主语的常见句型:①It + be + 形容词+ to do sth. / doing / that ….e。
g。
It is very important to learn a foreign language. (学一门外语非常重要.)It is useless crying over the spilt milk。
(覆水难收。
)It was really surprising that she married a man like that。
(她嫁给那样的男士真让人惊讶。
)②It + be +名词词组+ doing / that …。
e。
g。
It is no good telling lies. (撒谎没好处。
)It is a pity that you didn’t go to see the film yesterday。
英语中宾语从句用法及例句总结(完整)

宾语从句用法及其例句宾语从句用法时态: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,从句是客观真理时,只用一般现在时。
一、宾语从句的连接词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,if和whether引导表示“是否”的一般疑问句的宾语从句.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.没人知道他是否会通过考试.连接代词连接代词主要有who, whom ,whose ,what ,whoever ,whomever ,wh osever, 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.Do you know who has won Red Alert game?你知道是谁赢得了红色警报的游戏?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些什么.Have you determined whichever you should buy,a Motorola or Noki a cell phone?你决定好是买诺基亚还是摩托罗拉的电话了吗?连接副词连接副词主要有when,where,why,how,whenever,wherever,however 等.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 panel?你能告诉我怎么用这个新的操作盘吗?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.二、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 stro nger.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 tur n 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.I have made it a rule that I keep diaries.我每天写日记成了习惯.We all find it important that we (should) make a quick decision abo ut this mater.我们都认为对这件事马上做出决定很重要.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.三、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 se nt 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.四、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,sor ry,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.五、if,whether在宾语从句中的区别① if和whether在作“是否”解时,引导宾语从句常放在动词know,ask,c are,wonder,find out等之后,介词后一般不用if②少数动词,如:leave,put,discuss,doubt后的宾语从句常用whether.③ whether后可以加or not,但是if不可以.④在不定式前只能用whether.(如:I can’t decide whether to stay. 我不能决定是否留下。
whether和if的区别

whether和if的区别一、相同之处1.whether和if表示“是否”时,都能引导宾语从句,这时两者可以互换,常置于see,ask,learn,tell,wonder,doubt,find out等动词之后。
如:He asked me whether/if I could help him. 他问我是否我能帮他。
I want to know whether/if he lives there. 我想知道他是否住在那里。
We don’t know whether/if we should go or stay. 我们不知道我们是否该走还是待着。
2.在be uncertain/doubtful之后,常用whether引导宾语从句,有时也可以用if。
如:We are uncertain whether/if Mary will come. 我们不确定玛丽是否会来。
二、不同之处1.whether可置于句首引导主语从句,而if不能;但如果是it作形式主语,则主语从句中可以用if。
如:Whether he will come is not certain. =It is not certain if/whether he will come.他是否会来是不确定的。
(it作形式主语,则后面的从句中可以用if)2.在宾语从句中,如果从句中有or not时,分两种情况:当whether与or not连成一个词组时,whether不可换用if。
She asked me whether or not I could finish the task in a day. 她问我是否能在一天之内完成这项任务。
I don’t know whether or not they will come for our help. 我不知道他们是否会来帮我们。
3.whether可用在介词之后,引导宾语从句,而if则不能。
如:Success depends on whether we make enough effort.成功取决于我们是否做了足够的努力。
语法whether与if的pk

语法whether与if的pk在名词性从句(如主语从句,宾语从句,表语从句)使用中我们有两个引导词的意思都解释为是否,它们就是whether和if。
很多同学会搞不清楚它们的用法,既然意思一样,那么用法是否完全一样呢?当然不完全一样!!今天,老师就给大家一个简单的口诀,让大家记住它们的用法区别~~首先,我们先给这两个引导词加上性别:if是女的,whether是男的。
一般而言,男的胆子都比较大,所以遇到如下困难和危险都是它勇往直前!“前有介be狼,后有不定虎,位句首,加是否。
”这个口诀十分短小精悍,我想大家应该都会觉得朗朗上口吧!那么,听老师来分析一下这四句话到底是什么意思吧~前有介be狼:介词和be动词之后只能用whether,不能用if!e.g. It depends on whether he will come or not.(此句中on为介词,所以后只能加whether,whether引导宾语从句)e.g. The problem is whether it will be sunny tomorrow.(此句中is为be动词,只能用whether,这里whether引导表语从句)后有不定虎:后有不定式,前面只能用whether,不能用if!e.g. He has not decided whether to go or not.(to go是动词不定式,前面只能用whether,whether引导宾语从句)位句首:放句首只能用whether,不能用if!e.g. Whether he will go to the party is not sure.(whether放句首,if不能放句首,这里whether引导主语从句)加是否:后接or not,前面只能用whether,不能用if!e.g. Mary has not decided whether or not she will go to see her friends off at the airport.(whether后可接or not,if不可,这里whether引导宾语从句)大家都清楚了吗??这个口诀一定要背出来哦,这样碰到whether和if的题目就不会出错啦!那我们来做几道题目试试吧~用whether或if填空:1. She asked Tom ______he would come the next day.2. Linda is interested in the movie, but she cannot decide _____ she will go to see it tomorrow.3. ______he will come to the meeting is not known.4. He is not sure ________to go to the library or go to the classroom.5. They have not agreed on ______ they will hold the second meeting or not.。
whether和if引导的从句

whether与if一、相同之处。
1. whether和if常置于see, ask, say, learn, tell, wonder, doubt, find out, be uncertain/doubtful/be not known等动词之后引导宾语从句,通常可以互相替换,口语中多用if代替whether。
在非正式的写作中,可以使用if 或 whether 两个词来表达不定性,两者都算标准。
例如:We shall soon learn whether/if it is true.He asked me whether/if I could help him.I want to know whether/if he lives there.Ask if/whether he plans to come to the meeting.2. whether和if都可用it作形式主语从句中。
如: it's uncertain whether/if he'll come this evening.3. 在be uncertain/doubtful/be not known之后,常用whether引导宾语从句,有时也可以用if,如: We are uncertain whether/if Mary will come.二、不同之处。
1. whether可置于句首引导主语从句,if则不能。
如:Whether the 2000 Olympic Games will be in Beijing is not known.Whether the football game will be played depends on the weather.Whether he will come is still a question.若在句首使用形式主语 it,而将主语从句放在句末,则有时也可用 if 来引导。
【高考英语语法】名词性从句

名词性从句
内容索引
·高频考点突破 ·分层综合演练
高考考什么
名词性从句是高考中的重要部分,尽管语法填空题涉及不是很多,但是其重要性不可忽 视。 (1)三种形式:引导词①that ②if/whether ③what/how... (2)四种功能:宾语从句/表语从句/主语从句/同位语从句 (3)that引导宾语从句可以省略,引导其他三种从句不可省略;if只能引导宾语从句,不 能引导后三种从句。连接代词what/...和连接副词when/...都可引导。 (4)that与what引导名词性从句的区别
(2021·山东省枣庄市高三二调)
④This time I was alone wandof teenage girls asked me __if_/_w_h_e_t_h_e_r__ I could pose with them for a photo.(2021·河南省平顶山市四模) ⑤No one knows how much time we have.That's ____w__h_y_____ we must live in the moment.(2021·湖南省雅礼中学高三5月质量检测)
3. 连 接 代 词 who , whom , whose , what , which , whoever , whatever , whichever 和连接副词 where,when,how,why The question is how he did it. 问题是他是如何做此事的。 That was what she did this morning on reaching the attic. 那就是她今晨上了阁楼干的。
语 法 脉 图
高频考点突破
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Whether it be bird, fish or beast...
提问者:johnleo - Q籽一级[收藏]
悬赏沪元:20浏览1206 次
Whether it be bird, fish or beast, the porpoise is intrigued with anything that is alive.
请问这里为什么要用(should) be虚拟式,它不表示与事实相反,不表示愿望、假想和建议。
它到底要用虚拟式表示什么呢?谢谢
问题补充:如果要用whether it is bird, fish or beast...和原句有什么区别?
最佳答案
海豚对凡是活的东西都感兴趣,不管是鸟、是鱼,还是野兽。
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虚拟语气用在由“whether” 引导的让步状语从句中,从句谓语用原形动词。
All engines work on this principle, whether they be large or small.
所有发动机都按这一原理工作,无论它们是大还是小。
We must finish the work before we go home, whether it be early or late.
无论时间早晚,我们必须在回家前干完工作。
All matter, whether it be gas, liquid or solid, is made up of atoms.
所有物质,不论是气体,液体,或固体,都是由原子构成。
在此句型中,可省去whether ,而将be放在主语前。
例如:
Be it so, we must continue to do the test.
We must do our best to fulfil the task, be it ever so hard.
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Whether it is bird, fish or beast , ................. .
这样的句型属于宾语从句前置。
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比如:Whether it is true or not, I can't tell.
陈述的句子是:I can't tell whether it is true or not.
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你原句的主句是:the porpoise is intrigued with anything that is alive.
因此前面需要一个状语从句,即whether引导的让步状语从句,就要用虚拟语气。