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高中三年级英语

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  • 单选题
    ____seemed to be a lot of difficulty in dealing with some many problems within a week.
    _____seemed that she was not interested in the topic they
    [     ]

    A. There
    B. It
    C. She
    D. They
    本题信息:2012年同步题英语单选题难度一般 来源:耿辉(高中英语)
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本试题 “____seemed to be a lot of difficulty in dealing with some many problems within a week._____seemed that she was not interested in the topic they[ ]A...” 主要考查您对

it的用法

there be句型

等考点的理解。关于这些考点您可以点击下面的选项卡查看详细档案。
  • it的用法
  • there be句型

it的概念:

it可用作人称代词、指示代词、先行词及引导词等。


it 的用法:

1、it可指天气、温度、时间、距离等 。
如:It is cold today, isn't it?
2、用作人称代词,代替前文提到过的事物。
如:The dog is not  acold-blooded animals.  It doesn't need to hibernate.
3、为避免重复,it可用来代替前面说过的短语或句子。
如:I tried to persuade my father to give up smoking, but found it impossible. (it=to persuade my father to give up smoking)
4、代替指示代词this,that。
如:—What's this?
        —It's an album.
        —Whose new bike is that?
        —It's Mary's.
注:it与one,that的区别:
        it=the(this, that)+名词,特指并且代替前面所提到的某特定事物。
如:He's bought a new car, so he drives it everywhere to show ito ff.
        one=a+名词,one指前面提到的同类事物中的不同的另一个。
如:He needs a computer, but he can't afford one.
        that=the+名词,that指代的名词与前面的名词属于同一类,但不属同一个。
如:The population of China is larger than that of Japan.  that指代population,但其后有一个of短语作定语,以区别于the population of China。
:it与that的异同:
        it指同一事物,that指同类但并不是同一事物。
如:I like the climate of Kunming more than that of Beijing.
       The climate of Kunming is mild, and I like it.
5、It/This/That+be+the first(second, third...) time+that-clause 这个句型表示截止到说话时为止的某人的一种经历,关键是注意time前有序数词,主句是一般现在时is时,从句要用现在完成时;如果主句用一般过去时was时,则从句须相应地用过去完成时。
如:This is the first time(that) these Europeans have visited the Great Wall.
        It was the fifth time(that) I had paid a friendly visit to America.
6、在一些相对固定的词组中,没有特殊含义,经常不翻译。
如:He's never really made it as an actor. 作为演员,他从未获得过真正的成功。
        It is my turn. 轮到我了。


强调句中的it:

可以用来改变句子结构,使句子的某一成分得到强调:
1)强调句的基本句型it's/was+被强调成分+that/who+其他成分
原句:I told Jim the news in our office yesterday.
强调主语:It was I that/who told Jim the news in our office yesterday.
强调宾语:It was Jim that I told the news in our office yesterday.
            或:It was the news that I told Jim in our office yesterday.
强调地点状语:It was in our office that I told Jim the news yesterday.
强调时间状语:It was yesterday that I told Jim the news in our office.
2)强调句的一般疑问句型Is/Was+it+所强调部分+that/who...?
如:Was it you that told Jim the news in your office yesterday?
3)强调句的特殊疑问句型疑问词+is/was+it+that/who...?
如:Who was it that told Jim the news in your office yesterday?
【注】强调句与主语从句虽然在形式上很相似,即都含有it is(was)...that。但,区别在于:强调句去掉it is(was)…that之后,句子结构仍然完整,而主语从句却不能这样。
如:(It is)our hope(that) the two sides will work towards peace.
解析:去掉It is…that之后,句子是不成立的。由此得出该句不是强调句,而是一个简单的主语从句,it是形式主语,从句是真正的主语。


“it”的用法:

1、it 作形式主语:
it 在句中可作形式主语,而真正作主语的主语从句需要放在句子的末尾。主语从句后置常用以下几种结构:
1)It is/was+adj.+subject-clause可用于此句型的形容词有:
clear, certain, funny, good, impossible, likely, natural, obvious, possible, probable, strange, surprising, true, unusual, wonderful等。
如:It is obvious that going for sports will do a lot of good to your health.
2)It+be+adj./n.(forsb./ofsb.)+todosth. 该句型中的形容词通常表示事物的特点或特征的,如:
difficult, hard, easy, impossible, necessary, important等,此时用for;或表示人的性格特征或特点的,如:
nice, good, bad, kind, silly, foolish, wise, clever, careless, rude, brave, cruel, careful, grateful等,这时要用of 。
3)It is/was+名词词组+subject-clause可用于该结构的名词词组有:
a pity/duty, a good thing, no surprise, good news, an honor, a fact, a mystery, a shame, manners等。
 如:It's a pity that I didn't attend the party.
4)It is/was+V-ed+subject-clause可用于该结构的动词的过去分词有:
said, reported, thought, supposed, believed, hoped, expected, known, decided, announced, arranged等。
如:It is said that something had been done to end the pollution.
注:本句还可改写为:Something is said to have been done to end the pollution.
5)It+vi.+subject-clause可用于该结构的动词有:appear, seem, happen, occur等。
 如:It appeared to scientists that the stars had moved.
6)It doesn't matter(makes no difference,etc.) +连接代词或连接副词引起的从句作宾语。
如:It doesn't matter whether he'll join the army or not.
        It makes no difference where we have the conference.
7)一些固定句型:
It takes sb. some time to do sth.
如:It will take you two days to get there on foot. 
It costs sb. some money to do sth.
如:It costs 1,000 dollars to fly to America.
It is/was no use(useless) doing(做什么是没有用处的)
如:It's no use arguing with him.
It is/was no good doing(做什么是没有好处的)
8)以下句型结构中需要用虚拟语气
① It is/was important(necessary, strange) that...;
     It is/was ordered(required, suggested, proposed) that...;
     It is/was a pity(a shame) that...表示遗憾等感情的句子中,主语从句要用“should+动词原形”,should可以省略。
如:It's necessary that he(should) be operated on at once.
② It is (high)time that...结构中用should+动词原形(should不能省略)或动词过去式。
如:It is high time that you should make(made) full use of your time to go over your lessons.

2、it作形式宾语
1)动词consider(feel, find, think等)+it+形容词(名词)+不定式(动词-ing形式,从句)。
 如:She thinks it no use telling me.
2)主语+appreciate(enjoy,like,love,hate)+it+if(when)...结构
如:We would appreciate it if you could come to help us.
3)dependon, relyon, see to(负责/设法做到), takeforgranted(习以为常)等短语后跟that从句时,要以it作形式宾语。
如:We're depending on it that he will finish the job by Friday.


“it ”引起的几个易混淆的时间句型:

1)It be+时间+since-clause 这个句型表示从since从句谓语动作发生以后到现在或过去所经过的一段时间,意为“自从…以来已多久了”,主句多用一般现在时,从句用一般过去时,如果表示过去的情况,主句一般用过去时,从句用过去完成时,或主句用过去完成时,从句用一般过去时。
:since引导时间状语从句时,从句若使用终止性动词,则表示该时间是主句时间段的终点(时间从现在算起);若从句使用延续性动词,则表示该动作状态的结束(时间从过去算起)。
如:It's five years since they got married. 他们结婚已经5年了。 
        It's five years since they were married. 他们离婚已经5年了。
        It's ten years since his father was a worker. 他父亲不当工人已经10年了。
        I haven't seen him since we were boys together. 我们长大以后再没有见过面。 
2)It be+时间+before-clause 这个句型中的时间一般为表示一段时间的词语(如:long years, months, weeks, days, hours, minutes),主句中的谓语动词用肯定式,意为“过多长时间才…”。主句的谓语动词是否定式时,意为“没过多长时间就…”。主句的时态可用过去时was或将来时willbe;用was时,before从句的动词用一般过去时;用willbe时,before从句常用一般现在时。 如:It was not long before she learned those poems by heart. 她没过多久就背会了那些诗。
        It was long before the police arrived. 过了很久警察才来。
        It will be hours before he makes a decision. 要过好几个小时他才会作出决定。
        It will not be hours before we meet again. 要不了几个小时我们还会再见面的
3)It be+时间+when-clause 这个句型中,it指时间,而且表示时间的词语前没有介词(时间一般是具体时间)。主句和从句中的谓语动词在时态上是一致的,主句是willbe,when从句用一般现在时代替将来时。
如:It was already 8 o'clock when we got home.
        It will be late afternoon when they get there. 
4)It be+时间+that-clause 这个句型是个强调句型。
如:It was at 5o'clock that he practiced playing the violin in the morning. (原句是:He practiced playing the violin at 5o'clock in the morning.)
比较:It was 5o'clock when he started in the morning.(5o'clock前没有介词,这个是定语从句)
5)It be+time+that-clause 这个句型属虚拟语气结构,不管主句中用的是is或was,that从句都须用动词的过去式或should+动词原形(但不及物动词通常用过去式),在time之前有时可以加上high 或about 以加强语气。
如:It is high time(that) he wrote a letter to his girl friend.
        It is time(that) we made people's life a little easier.= It is time that we should make people's life a little easier.


there be句型的概念:

英语中的there be结构主要表示某处存在有某物,所以通常被称为存在句。其中的there为引导词,无词义,be为谓语动词,therebe后面的名词为句子主语。


therebe结构的否定式和疑问式:

 1、否定式
there be结构的否定式通常应将否定词置于动词be之后:
如:There is not any bread left. 没有一点面包了。
        There isn't anything I can do for you. 我帮不了你什么忙。
若谓语中包括有助动词或情态动词,通常将否定词置于助动词与情态动词之后:
如:There can't be so many mistakes. 不可能有那么多错误。
        There shouldn't be any doubt about it. 对此不应有什么怀疑。
        There haven't been any parties in weeks. 好几个礼拜没开过晚会了。
另外注意以下类型的否定式:
如:There doesn't seem to have been any difficulty over the money question. 在钱的问题上似乎没发生什么困难。
2、疑问式:
there be结构的疑问式通常应将否定词置于动词be之后:
如:Is there any good film on? 映什么好电影吗?
        Is there room for me in the car? 车子里还有我坐的地方吗?
        Are there any letters for me? 有我的信吗?
若谓语中包括有助动词或情态动词,通常将助动词或情态动词移至句首构成疑问式:
如:Has there been an accident? 出事了吗?
        Have there been any new developments? 有什么新的发展吗?
        Can there have been so much rain there?那儿会下过那么多雨吗?
另外注意以下类型的疑问式:
如:Uncle Jesse, why do there have to be poor people like those? 杰西叔,为什么一定要有他们那样的穷人?


there be结构的谓语形式:

1、主谓一致问题:
 若只有一个主语,谓语的数则取决于该主语的数;若有几个主语并列,则通常是与靠近的主语保持一致:
如:There is a man at the door. 门口有个人。
        There are some girls in the room. 房间里有几个女孩。
        There is a pen and some books on the desk. 桌上有一支钢笔和一些书。
2、时态问题:
there be结构的时态由其中的谓语动词be来体现,它可以有一般现在时、一般将来时、一般过去时、现在完成时以及过去完成时等多种时态形式:
如:There is going to be[will be] an English film tonight. 今晚将有一场英语电影。
        There was a lot to be done. 有很多事要做。
        There were some children swimming in the river. 有些小孩在河里游泳。
        There have been many such accidents. 已发生了好几起那样的事故。
        There had been two seafights between them. 他们之间发生了两场海战。
3、与情态动词连用:
there be结构有时可以与情态动词连用:
如:There may be a storm tomorrow. 明天可能有风暴。
        There used to be a hospital here. 原来这里有家医院。
        He felt there must be something wrong. 他感到准有什么问题。
        There might still be hope. 可能还有希望。
        There ought to be a comma here. 这儿应有一个逗号。
4、动词be换成其他动词:
有时可将there be中的动词:be换为live, remain, seem, appear, exist, stand, lie, come等:
如:Once upon a time there lived a man known by the name of Joe Beef. 从前有个人名叫乔·比夫。 
        There seems[appears] something the matter with her. 她好像是出了什么事似的。
        There existed different opinions on this problem. 对这个问题曾有不同看法。
        There remained just twenty-eight pounds. 只剩28英镑了。
        At the top of the hill there stands an old temple. 在小山顶上有一座古庙。
5、与其他动词搭配使用:
there be结构有时可与其他动词搭配使用,构成一种复合谓语:
如:There seemed to be nobody about, so I went in. 附近似乎没有人,因此我就走了进去。
        There happened to be a man walking by. 恰好有一个人从旁经过。

therebe结构的非谓语形式:

基本结构:there be结构的非谓语形式有两种基本结构,即there being和there to be:
1、there being结构该结构的主要用法有:
(1)用作状语:
如:There being nothing else to do, we went home. 由于没什么其他的事要干,所以我们就回家了。
        There having been no rain, the ground was dry. 由于没有下雨,所以地面很干。
【注】有时可与状语从句转换:
如:There being no further business(=As there was no further business), I declared the meeting closed. 由于没有别的事了,我宣布闭会。
(2)用作介词宾语:
如:There is now some hope of there being a settle ment of the dispute. 现在有点希望可以解决这次争端。
2、There to be结构该结构的主要用法有:
(1)用作动词宾语:该结构可用作某些动词(如like, prefer, hate, want, mean, intend, expect, consider等)的宾语:
如:I don't want there to be any misunderstanding. 我可不希望有任何误解。
        Students hate there to be too much homework. 学生讨厌做太多的家庭作业。
        We expect there to be more discussion about this. 我们期望能对此展开更多的讨论。
【注】在let there be结构中,动词be不带to:
如:Don't let there be any noise. 不允许有任何吵闹。
        Let there be no mistake about it. 这事不要出错。
(2)用作介词for的宾语:
如:They asked for there to be another meeting. 他们要求再开一次会议。
【注】用作介词宾语一般用there being,但用作介词for的宾语时,只能用there to be。
比较:They planned on there being another meeting. 他们打算再开一次会议。
            They planned for there to be another meeting. 他们打算再开一次会议。


几个重要句型和结构

 1、There is no doing结构:
其意为“不可能…”、“无法…”:
如:There's no denying the fact. 这一事实不容否认。
        There is no getting over the difficulty. 这困难无法克服。
        There is no knowing what he will do next. 无法知道他下一步要干什么。
        There was no telling when she would be back. 没法知道她什么时候回来。
2、There is no difficulty in doing sth结构:
意为“做某事没有困难”:
如:There is no difficulty in finding his office. 找到了他的办公室没费一点劲。
        There was no difficulty in carrying out the plan. 执行这项计划没什么困难。
3、There's no doubt…结构:
意为“毫无疑问…”:
如:There is no doubt of his success. 毫无疑问他一定会成功。
        There could be no doubt that he was one of the best writer in this country. 毫无疑问他是这个国家最优秀的作家之一。
4、There is no hurry(to do sth)句式:
其意为“不用急(于做某事)”:
如:There's no hurry to return the book. 现在不急于还书。
        There's no hurry, so do it slowly and carefully. 不用赶时间,要慢慢细心地做。
5、There's no need for…结构:
其意为“不需要或不必要…”:
如:There is no need for help. 不需要帮助。
        There is no need for you to go. 你没有必要去。
6、There is no question about...结构:
其意为“…是毫无疑问的”:
如:There's no question about his success. 毫无疑问他会成功。
        There's no question about his honesty. 毫无疑问他是诚实的。
7、There is no question of doing sth句式:
其意为“做某事是不可能的”:
如:There is no question of his coming. 他不可能会来。
        There is no question of our arriving on time. 我们不可能准时赶到。
8、There is no sense in doing sth结构:
意为“做某事没有道理或好处”:
如:There's no sense in criticizing him. 批评他也没有用。
        There's no sense in waiting three hours. 等三小时是不没有道理的。
9、There's no point in doing sth句式:
意为“做某事没有用”:
如:There's no point(in) telling her about it. 告诉她没有用。
如:There's no point in wasting time. 耗时间没用。
【注】以上有的结构中的no根据情况也可换成其他限定词:
如:There is some difficulty in doing sth 意为“做某事有些困难”。 
        There is much difficulty in doing sth 意为“做某事许多困难”。
        There's a need for… 意为“需要或有必要…”。
10、“there be+名词+动词”结构:
(1)there be+宾语+现在分词现在分词表示主动关系,同时表示动作正在进行:
如:There is some one waiting for him. 有人在等他。
        There was a man standing in front of me. 我前面站着一个男人。
        There were some children swimming in the river. 有些小孩在河里游泳。
        There were a group of young people working in the fields. 有一群青年在地里劳动。
有时现在分词可表示一种状态:
如:There's a piano standing against the wall. 靠墙有一架钢琴。
        There're a lot of difficulties facing us. 我们面前有很多困难。
        There is a door leading to the garden. 有一座门通往花园。
有个别现在分词用于该结构时可以表示将来(正如它们可用进行时表示将来一样):
如:There are ten people coming to dinner. 有10个人来吃晚饭。
(2)there be+宾语+过去分词过去分词表示一种被动关系,同时表示动作已经发生:
如:There is nothing written on it. 上面没写东西。
        There were ten people killed in the accident. 事故中有10人丧生。有时过去分词也可表示一种状态(可转换成被动结构):
        There were some old men seated(=who were seated)in the back. 有些老人坐在后面。
        There is a red car parked(=which is parked)outside the house. 房子外边停着一辆红色汽车。
(3)therebe+宾语+不定式不定式通常表示动作尚未发生:
如:There was nobody to look after the child. 没有人照顾这孩子。
        There was a large crowd to send him off. 有一大群人要来给他送行。
        There was so much to lose that we couldn't take any risks. 可能会有很大的损失,因此我们不能冒险。
【注】当其中的宾语与其后的不定式为被动关系时,可用主动表被动,也可用被动式:
如:There is much work to do[to be done]. 有许多工作要做。有时其中的不定式为系表结构:
        There is nothing to be afraid of. 没什么可怕的。
        What was there to be afraid of. 有什么可怕的?
        There's nothing to be ashamed of. 没有什么值得羞愧的。