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高中二年级英语

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  • 单选题
    Since we haven't got enough money available, _____ about sightseeing in that country.
    [     ]

    A. it is no need talking
    B. it is no need to talk
    C. there is no need talking
    D. there is no need to talk
    本题信息:2012年同步题英语单选题难度一般 来源:刘倩
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本试题 “Since we haven't got enough money available, _____ about sightseeing in that country.[ ]A. it is no need talkingB. it is no need to talkC. there is...” 主要考查您对

不定式

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。
  • 不定式
  • there be句型

动词不定式的概念:

动词不定式指由to加上动词原形(而且只能是动词原形)所构成的一种非限定性动词,但在有些情况下to可以省略。动词不定式在语法功能上可作主语、宾语、宾语补足语、
表语、定语和状语。


不定式的特殊句型对比:

1、不定式的特殊句型too…to…:
1)too…to 太…以至于…。
例如:He is too excited to speak. 他太激动了,说不出话来。  
        —Can I help you? 需要我帮忙吗?
        —Well, I'm afraid the box is too heavy for you to carryi t, but thank you all the same. 不用了。这箱子太重,恐怕你搬不动。谢谢。
2)如在too前有否定词,则整个句子用否定词表达肯定,too后那个词表达一种委婉含义,意为“不太”。
例如:It's never too late to mend. 改过不嫌晚。(谚语) 
3)当too前面有only, all, but时,意思是:非常…等于very。
例如:I'm only too pleased to be able to help you. 能帮助你我非常高兴。 
            He was but too eager to get home. 他非常想回家。
2、不定式的特殊句型so as to:
1)表示目的:它的否定式是so as not to do。
例如:Tom kept quiet about the accident so as not to lose his job. 汤姆对事故保持沉默是为了不丢掉他的工作。   
            Go in quietly so as not to wake the baby. 轻点进去,别惊醒了婴儿。
2)表示结果:
例如:Would you be so kind as to tell me the time? 劳驾,现在几点了。
3、不定式的特殊句型:Why not:
“Whynot+动词原形”表达向某人提出建议,翻译为:为什么不……?   干吗不……?
例如:Why not take a holiday?


不定式的用法:

1、不定式作补语:
1)有些有动词+宾语+不定式的结构。
例如:advise allow cause challenge command compel drive驱使
enable encourage forbid force impel induce instruct invite like/love order permit make let have want get warn persuade request send tell train urge 等。
例如:Father will not allow us to play on the street. 父亲不让我们在街上玩耍。      
            The officer ordered his men to fire. 长官命令士兵开火。
注意:有些动词如make,have,get,want等可用不定式作做宾补,也可用分词作宾补。现在分词表达主动,也表达正在进行,过去分词表达被动。
2)有些有动词+宾语+不定式的结构,不定式的动词往往是be,不定式一般可以省去。
例如:consider find believe think declare(声称) appoint guess fancy(设想) guess judge imagine know 等。
例如:We believe him to be guilty. 我们相信他是有罪的。 
            We know him to be a fool. 我们知道他是个笨蛋。(tobe不能省去)
典型例题:Charles Babbage is generally considered___the first computer.
                    A. to invent 
                    B. inventing 
                    C. to have invented 
                    D. having invented 
答案:C. 一般没有consider+宾语+be以外不定式的结构,也没有consider+宾语+doing的结构,排除A、B、D。consider用动词be以外的不定式作宾补时,一般要求用不定式的完成式,故选C。 3)有些动词可以跟there+to be的结构。例如:believe expect intend like love mean prefer want wish understand 等。
例如:We didn't expect there to be so many people there. 我们没料到会有那么多人在那里。
            You wouldn't want there to be another war. 你不至于想让另外一场战争发生吧。
2、不定式作主语:
不定式作主语,往往用it作形式主语,真正的主语不定式放至句子的后面。 
例如:It's so nice to hear your voice. 听到你的声音真高兴。
            It's necessary for you to lock the car when you do not use it. 不用车的时候,锁车是有必要的。 
            It's very kind of you to help us. 他帮助我们,他真好。 
            It seemed selfish of him not to give them anything. 他不给他们任何东西,这显得太自私了。
3、不定式作表语:
不定式可放在be动词后面,形成表语。
例如:My work is to clean the room every day. 我的工作是每天清扫房间。  
            His dream is to be a doctor. 他的梦想是成为一名医生。
4、不定式作定语:
不定式做定语通常要放在被修饰的词后,往往表示未发生的动作。
例如:I have a lot of work to do.我有许多事要做。   
            There was nothing to bring home that morning. 那天早上(他回家时)两手空空。
5、不定式作状语:
1)目的状语:常用结构为to do,only to do(仅仅为了), in order to do,so as to do,so(such)...asto…(如此…以便…)。
例如:He ran so fast as to catch the first bus. 他飞快地跑以便赶上第一班车。  
            I come here only to say good-bye to you. 我来仅仅是向你告别。
2)作结果状语,可以表示没有预料到的或事与愿违的结果,不定式要放在句子后面。
例如:I awoke to find my truck gone. 我醒来发现箱子不见了。  
            He searched the room only to find nothing. 他搜索了房间,没发现什么。
3)表原因:
例如:I'm glad to see you.  见到你很高兴。
            She wept to see the sight. 她一看到这情形就哭了。
4)表示理由和条件:
例如:He must be a fool to say so.
            You will do well to speak more carefully.
            You will do well to speak more carefully.


不定式知识体系:

 


不定式用法拓展:

1、用作介词的to:
to可以用作介词,也可用作不定式的标示。下面的to都用作介词:admit to  object to  beaccus to  med to  beused to  stick to  turn to开始 look forward to  be devoted to  pay attention to  contribute to apologize to devote oneself to

2、省去to的动词不定式:
1)情态动词(除ought外)后。
2)使役动词let,have,make后,感官动词see, watch, lookat, notice, observe, hear, listento, smell, feel, find等后。
注意:被动语态中不能省去to。
例如:I saw him dance. 我看见他跳舞。=He was seen to dance.  
           The boss made them work the whole night. 老板让他们整夜干活。 =They were made to work the whole night.
3)would rather,had better句型后:
4)Why…/why not…句型后:
5)help后可带to,也可不带to, help sb(to)do sth:
6)but和except后:
but前是实义动词do时,后面出现的不定式不带to。
比较:He wants to do nothing but go out. 他只想出去玩。  
            He wants to believe anything but to take the medicine. 除了吃这药,他什么都信。
7)由and, or和than连接的两个不定式,第二个to可以省去:
8)通常在discover, imagine, suppose, think等词后作宾补时,可以省去to be。
例如:He is supposed(to be)nice. 他应该是个好人。

3、动词不定式的否定式在不定式标志to前加上not。
例如:Tell him not to shut the window。让他别关窗。 
            She pretended not to see me when I passed by. 我走过的时候,她假装没看见。
4、It's for sb. 和It's of sb. 这样的句子中,由于表语形容词性质的不同,导致了不定式逻辑主语标志用for或of的区别。
1)for sb. 句型中的形容词一般为表示事物的特征特点,表示客观形式的形容词,如easy, hard, difficult, interesting, impossible等:
例如:It's very hard for him to study two languages. 对他来说学两门外语是很难的。
2)of sb句型中的形容词一般为表示性格,品德,心智能力,表示主观感情或态度的形容词,如good, kind, nice, clever, foolish, right。
例如:It's very nice of you to help me. 你来帮助我,你真是太好了。用for还是用of的另一种辨别方法:用介词for或of后面的逻辑主语作句子的主语,用介词前边的形容词作表语,造个句子。如果通顺用of,不通则用for。
例如:You are nice.(通顺,所以应用of)。  
            He is hard.(非所表达的意思,不通,因此用for。)


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。