动词不定式做主语(动词不定式的被动形式)

  

动词不定式做主语,主要行为动词在那里。


  不是很理解你的问题。但动词不定式作主语,不定式相当于一个名词功效。句子的谓语动词与它无关。如:   To get up early is good.   is good 为句子的系表结构   

动词不定式作主语表示什么


  动词不定式表目的是作目的状语!   

动词不定式和动名词作主语的区别


  不定式和动名词都可在句子中作主语,一般说来, 有下面几点须给予注意:   (1) 不定式一般表示具体的、特定的行为;而-ing分词一般表示抽象的、一般的行为。如:   To complete the program needs much effort. 完成这项计划需要很大的努力。   Riding a bike can make a man smart. 骑单车能使一个人敏捷。   (2) 在疑问句中,只能用动名词的复合结构作主语。如:   Is his speaking reasonable? 她的说话有道理吗?   (3) 在某些句型中通常要用动名词短语作主语。如:It is no use doing…/ It is no good doing… / It is useless doing…/ It is worthwhile doing…如:   It is no use talking your trouble to a man like him. 跟他那样的人谈你的烦恼没有用。   (4) 一般说来,作主语和表语的非谓语动词形式应一致,即:或同时为不定式,或同时为-ing分词。如:   Seeing is believing. 眼见为实(from )。   但是,在现代英语中,当表语用来说明主语的特定意义或具体内容时,主语和表语的非谓语动词的形式可以不一致,即,主语用动名词,而表语用动词不定式。如:   Waving your hand is to say “Good-bye”. 挥手就是说“再见”。   Nodding your head is to say “Yes”. 点头就是说“对,是的”。   

不定式做主语


  
1、To love and to be loved is the greatest happiness in the world.

  爱人和被人爱是这个世界上最大的幸福。 

  2、 这里可以用loving和being loved 来代替主语。比如:眼见为实就有两种翻译:Seeing is believing. 和 To see is to believe.

  3、什么时候用不定式:

  动词不定式在句子中可做任何成分,但不能做谓语。 

  (1】动词不定式做主语 

  eg: To swim with you was very enjoyable. 

  注:动名词和动词不定式均可以做主语和表语,但动名词表示经常性的,抽象的动作,而不定式表示特指的一次性的具体的动作 

  (2】动词不定式做表语 

  eg: Her wish is to become a teacher. 

  注:表语为不定式时,主语也是不定式;当主语部分含有动词do时,做表语的不定式可以省略to. 

  eg: To see is to believe. 

  All you have to do is (to) study hard.

  (3)不定式做宾语 

  以下及物动词后常用动词不定式: 

  want,decide,aim(目标),manage(试图),hope,ask,happen,like,love,choose,prevent(阻止),promise,continue,plan,learn,fail等。 

  eg: I decide to look for a job. 

  (4)动词不定式做定语 

  动词不定式做定语往往要后置,与被修饰词之间存在动宾关系、主谓关系、同位关系和修饰关系。如果动词不定式是不及物动词,应该在动词后加上适当的介词。如果被修饰词是地点、时间、方法,通常省略动词不定式后的介词。 

  eg: I have something to say.(动宾关系】 

  I was the last one to leave here.(主谓关系】 

  I have no wish to quarrel with you.(同位关系】 

  This is the best way to do that.(修饰关系】 

  I have nothing to worry about.(不及物动词后加介词】 

  I can"t find a place to play (in).(省略介词in) 

  注:当名词用特定的定语如:frist,last,next,only等以及形容词最高级修饰时,后面用不定式修饰。 

  eg: He is the only person to know the truth. 

  (5】不定式做状语 

  不定式做状语主要表达结果、目的和原因。 

  eg: He worked day and night to play for the debts.(目的状语】 

  He woke up to find everyone gone.(结果状语】 

  We laughed to hear the news.(原因状语】 

  注:动词不定式与only连用时,可表出乎意料的结果。 

  eg: He went to seaside only to be drowned. 

  (6)动词不定式做补语 

  eg: Allow me to introduce her to you.

  

动词不定式作主语、宾语、定语、状语、补语的句子


  一、作主语   【1】动词不定式作主语时,谓语动词常常用单数。例如:   To do morning exercises is useful for our health. 做早操有利于我们的健康。   To sweep the floor is my duty every day. 每天打扫地板是我的责任。   【2】如果动词不定式太长,常常用 it 作形式主语,而将真正的主语——动词不定式后置。例如:   It took me half an hour to walk there.我走到那儿花了半小时的时间。   It’s important for us to learn English well.对我们来说,学好英语是重要的。   二、作宾语   【1】能够接动词不定式作宾语的有 ask, agree, beg, decide, determine, fail, hope, manage, offer, plan, prepare, pretend, promise, refuse, wish 及 would like/love 等动词,但 finish, enjoy, miss, appreciate, mind, advise, suggest 等动词后面通常只能接动名词作宾语。例如:   I hope to visit this place again. 我希望能再度访问此地。   She enjoys reading very much.她非常喜欢读书。   The driver failed to see the other car in time. 司机没能及时看见另一辆车。   【2】动词不定式与名等词构成复合宾语时,通常要用 it 作形式宾语,而将真正的宾语——动词不定式后置。例如:   I think it our duty to obey the laws. 我认为遵守法律是我们的义务。   I found it difficult to see him here. 我发现在这里见到他是很难的。   三、作补足语   【1】某些动词在主动式中后接动词不定式作宾语补足语;在被动式中,由于原来的宾语变成了主语,故原来的宾语补足语变成了主语补足语。这类动词常用的有 consider, expect, tell, want, warn, wish,invite等。例如:   They told him not to be late again.他们告诉他不要再迟到了。→He was told not to be late again.   She invited me to have dinner with her yesterday.昨天她请我一起进餐。   【2】在feel【一感】,listen to,hear【二听】,let,make,have【三让】,look at,see,watch,notice【四看】等词之后接不带to的不定式作宾语补足语,强调动作的完成过程;它们作被动句的谓语时,to要补上。如:   I heard her sing today.She sang wonderfully.今天我听见她唱歌了,她唱得非常精彩。   She was heard to sing today.今天有人听见她唱歌了。   She is often heard to sing this song【by us】.我们经常听见她唱这首歌。   四、作状语   ⑴动词不定式作状语可表示目的、原因及结果等,其逻辑主语就是句子的主语,因此动词不定式作状语往往用主动式。例如:   Come to see me again soon. 尽快再来看我。   I trembled to think of it. 我一想到那件事就不寒而栗。   You couldn"t do that to save your life. 你即使为了救自己也不能那样做。   (2) only to do sth. 与 only doing sth. 都可作表示结果的状语,区别是:only to do sth. 表示一个与主语愿望相反的或出乎主语意料的结果, 或用来暗示最初的未能实现的动作;only doing sth. 表示谓语动词本身的动作造成的结果。例如:   I worked hard, only to fail at last. 我努力工作,结果最后却是失败。   He died, only leaving nothing but debts. 他死了,只留下一身债   五、作表语   【1】动词不定式往往放在系动词be【,become, sound, taste 等系动词后面一般不接不定式】的后面作表语,表示将来的情况,说明主语的内容。例如:   My wish is to become a teacher.我的愿望是当一名教师。   Your job today is to clean the playground. 你今天的工作是打扫操场。   【2】如果系动词后的动词说明主语的性质,特征,相当于形容词。这时就要用现在分词作表语,而不用不定式。例如:   He said that the story was interesting.他说这则故事很有趣。   六、作定语   【1】动词不定式常常放在名词或不定代词后面作后置定语,其逻辑主语往往是句子的主语,故动词不定式作定语时往往用主动式;如果动词不定式的逻辑主语不是句子的主语,该动词不定式要用被动式。例如:   Do you have anything to do tonight? 你今晚有什么事要做吗?   I am going to Shanghai tomorrow. Do you have anything to be taken there? 明天我要去上海。你有什么东西要捎去的吗?   【2】动词不定式作定语往往表示尚未发生的动作,如果动作已发生或正在发生,一般用现在分词作定语。例如:   I have no pen to write with.我没有钢笔写字。   The man standing there is Li Ming. 站在那里的那个人是李明。   七、和疑问词连用:   不定式前可用what,who,which,where,when,how,why等疑问词构成不定式短语,这种短语在句子中可作主语、宾语和表语等成分。   【1】作主语。例如:   When to start has not been decided. 什么时候出发还没定下来。   【2】作表语。例如:   The question is how to do the job well. 问题是怎样做好这项工作。   【3】作宾语。例如:   He told me where to find the book. 他告诉我了在哪找到这本书的。   Do you know how to play football? 你知道怎样踢足球吗?   八、不定式的被动式   在初中阶段还涉及到动词不定式被动式的一般式,这种形式是由“to be+动词过去分词”构成的,表示“被……”之意。例如:   

动词不定式作主语与动名词作主语的区别


  不定式和动名词作主语的区别:不定式表示具体或一次性的动作,也可表示将来的动作。动名词表示经常或泛指的动作。   如:To move this heavy box is not easy.   Reading in the sun is bad for your eyes. / Swimming is good exercise.   希望我的回答能够帮到你,不懂的再问!   祝你学习进步,天天快乐。O(∩_∩)O   

动词不定式当主语的介绍,请举几个例子,谢谢


  * 不定式表示目的或将要进行的事情;动名词表示状态或正在进行的事情.   * 作主语   1】 It"s easy (for me) to do that.我做这事太容易了   easy, difficult, hard, important, possible, impossible, comfortable, necessary, better;   the first, the next, the last, the best, too much, too little, not enough   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.   当你不用车的时候,锁车是有必要的。   2) It"s very kind of you to help us. 他帮助我们,他真好。   Kind, nice, stupid, rude, clever, foolish, thoughtful, thoughtless, brave, considerate(考虑周到的), silly, selfish(自私的)   例句:   It was silly of us to believe him. 我们真愚蠢,竟然相信了他。   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。   注意:1) 其他系动词如,look,appear等也可用于此句型   2) 不定式作为句子成分时,动词用单数形式。   3) 当不定式作主语的句子中又有一个不定式作表语时,不能用It is… to…的句型   (对)To see is to believe. 百闻不如一见。   (错)It is to believe to see.
© 版权声明
评论 抢沙发
加载中~
每日一言
不怕万人阻挡,只怕自己投降
Not afraid of people blocking, I'm afraid their surrender