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2009年自学考试英语(一)第八章复习及练习题
来源:优易学 2011-3-2 10:43:11   【优易学:中国教育考试第一门户】   资料下载   学历书店


  但是当说话人考虑的是必须有人去完成某件事情时,不定式用主动形式,如果说话人强调的是事情本身必须完成,则用被动式。
  如:There's nothing to do.意为无事可做,感到无聊。
  There's nothing to be done.意为某东西坏了,无法使之恢复正常。
  c)被only, last, next,序数词,最高级修饰的名词常用不定式作定语。
  如:The next train to arrive is from New York.下一列到达的火车是从纽约开来的。
  Clint was the only person to survive the air crash. Clint 是这次空难事故中唯一的幸存者。
  6)作状语
  a)动词不定式作目的状语:
  如:He went to America to learn English.他去美国学习英语。
  为了强调动词不定式所表示的目的时,动词不定式可以用in order to或so as to.
  如:She reads China Daily every day in order to/so as to improve her English.她每天读《中国日报》提高她的英语水平。
  in order to 为于句首或句中均可,so as to不能为于句首。
  b)动词不定式作结果状语:
  不定式作结果状语时,往往仅限于几个具有终止含义的动词,learn(得知),find(发现),see(看见),hear(听见)等。
  如:He retuned home to learn his son had gone to the countryside.他回家后才知道他的儿子已去了乡下。
  不定式用在too…to和enough结构中表示结果
  如:He is old enough to join the army.他够参军的年龄了。
  He is too short to reach the top of the shelf.他太矮了,够不着书架的顶层。
  某些形容词如:anxious, delighted, easy, kind, pleased, ready, willing 等,在too…to结构中,没有否定的含义,而是表示肯定。
  如:He is too ready to find fault.他老是爱挑毛病。
  在not, only, all, never, but等后的too…to结构,too的含义为very,不定式没有否定含义。
  如:It is never too late to learn.活到老,学到老。
  动词不定式和only连用时,表示未预料到的结果。
  如:He went to the station hurriedly only to find the train had left.他匆匆地赶到车站,却发现火车已经离开了。
  2.动词不定式的复合结构
  动词不定式的复合结构for+名词或代词宾格+动词不定式,在这种结构中,for后面的名词或代词是不定式的逻辑主语。
  如:It is necessary for us to learn from each other.我们必须互相学习。(不定式作主语)
  What we want is for you to understand the matter clearly.我们所希望的是你更清楚地了解这件事。(不定式作表语)
  We consider it necessary for him to do the job alone.我们认为很有必要他独自做那项工作。(不定式作宾语)
  There is a lot work for us to do.有很多工作要我们去做。(不定式作定语)
  The text is too long for us to learn by heart.课文太长,我们背不下来。(不定式作状语)
  注:有些表示人或事物性质、特征的形容词的不定式复合结构是of+名词或代词宾格+动词不定式
  如: It is very kind of you to help him every day.每天帮助他,你真好。
  It is brave of you to do that.你那样做真勇敢。
  3.疑问词what, who, which, when, where, how和连接词whether之后,可以跟带to的不定式,构成一个特殊的动词不定式短语,可以在句中作主语,宾语和表语。
  如:How to solve the problem is very important.如何解决这个问题是很重要的。(主语)
  He didn't know what to say. 他不知道该怎么说。(宾语)
  The question is where to find the source of water.问题是在什么地方能找到水源。(表语)
  4.不带to的不定式
  1)在feel, hear, listen to, look at, notice, observe, see, watch, let, have等动词后面,动词不定式作宾语补足语,动词不定式符号to通常省略。
  2)在would rather…than, would sooner…than, rather than, had better等结构中
  如:I would rather go than stay.我宁愿走不愿意留下。
  He insisted on going back to his work rather than stay in hospital.他坚持要返回到工作岗位,而不再住院。
  3)在以why引导的疑问句中不带to。
  如:Why spend such a lot of money? 为什么花那么多钱?
  4)在cannot but, cannot choose, cannot help but之后的不定式不带to.
  如:I cannot but admire his courage. 我不得不钦佩他的勇气。
  5) 不定式动词在介词but, except, besides后面时,如果这些介词之前有行为动词do的各种形式,那么,这些介词后面的不定式不带to, 否则要带to。
  如:The boy would do nothing but cry.这个男孩只是哭。
  I have no choice but to accept the fact.除了接受这个事实之外,我别无选择。
  6)某些习语中,如:make believe(假装),let go (放开,释放),hear say(据说),go hang (
  忘却)等。
  如:The children are making believe that they are princes and princesses.孩子假装他们是王子和公主。
  7)两个动词不定式由and, or 或than连接在一起,为了避免重复,第二个动词不定式可以省去。
  如:I'd like to lie down and go to sleep.我想躺下睡觉。
  但是如果是两者的对照,后面的不定式不省to.
  如:It is better to laugh than to cry. 笑比哭好。
  第二部分 巩固练习
  用括号中动词的适当形式填空
  1.The boy was made ___________ (sing) the song once again.
  填to sing. 在make后面,不定式作主语补足语时应该加上不定式符号to
  2.Don't make children _________ (work) too hard.
  填work. make后面的动词不定式作宾语补足语的时候,省略不定式符号to
  3.They would rather _____ (die) than _________ (surrender).
  填 die, surrender。would rather 后面不用to
  4.He could not choose but ___________ (love) her.
  填love. could not choose but后面之后的不定式不带to
  5.She could do nothing but _________ (change ) her name under the circumstances.
  填change. 不定式动词在介词but后面时,如果这些介词之前有行为动词do的各种形式,那么,这些介词后面的不定式不带to, 否则要带to
  6.He had his son _________ (play)the violin three hours a day.
  填play. have 后面的动词不定式作宾语补足语,要省略to
  7.There was nothing to do except _________ (escape).
  填escape. 不定式动词在介词except后面时,如果这些介词之前有行为动词do的各种形式,那么,这些介词后面的不定式不带to, 否则要带to
  8.He has not alternative but ________ (go ) and ask his sister for help.
  填 to go. 不定式动词在介词but后面时,如果这些介词之前有行为动词do的各种形式,那么,这些介词后面的不定式不带to, 否则要带to
  9.What can you see in the park?
  I can see birds ________ (fly ) in the sky and sometimes I can see people _______ (do) shadowboxing.
  填 fly/ do 感官动词see后面的动词不定式作宾语补足语的时候,省略to

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