成人英语三级考试重点解析讲义(二)

　　(三)名词性从句中的虚拟语气

　　1)The doctor advised that Mr.Malan _____ an operation right away so as to save his life.(1998.6)

　　A.had

　　B.was going to

　　C.have

　　D.would have

　　2)His mother insisted that he _____ the coat when going out.(1999.6)

　　A.put on

　　B.puts on

　　C.to put

　　D.putting on转自环 球 网 校edu24ol.com

　　3)Peter wishes that he _____ law instead of literature when he was in college.(2000.6)

　　A.could study

　　B.studied

　　C.had studied

　　D.would study

　　4)It is desirable that he _____ .(2000.6)

　　A.gives up trying

　　B.give up trying

　　C.would give up trying

　　D.is going to give up trying

　　5)I am too busy these days.I would rather all of you _____ next month for a dinner.(2002.6)

　　A.come

　　B.would come

　　C.came

　　D.have come

　　6)The general's command is that the soldiers _____ their fort and carry out more important tasks.(2002.6)

　　A.would leave

　　B.leave

　　C.left

　　D.have left

　　7)It's urgent that a meeting _____ before the final decision is made.(2003.4)

　　A.will be arranged

　　B.must be arranged

　　C.be arranged

　　D.would be arranged

　　8)Let's finished our homework in a few seconds; it's time we _____ .

　　A.played football

　　B.will play football

　　C.play football

　　D.are playing football转自环 球 网 校edu24ol.com

　　9)It's vital that enough money _____ collected to get the project started.

　　A.is

　　B.be

　　C.must be

　　D.can be

　　「答案」CACBC BCAB

　　「评析」

　　与以上两种虚拟语气句式不同，这里虚拟语气中时态的变化比较少，主要依据所处的句型。考生所需要的是了解在哪些情况下用这种句式，测试中考生只需从四个选项中辨认答案即可。该部分所包含的句型有：

　　① 表示"命令""建议"或"要求"的动词后面的宾语从句中用should + 原形动词，should可以省略。常用于该句型的动词有direct, order, command, require, ask, request, demand, insist, suggest, recommend, advise等。

　　这里句型的考题中，一般都会有would, must等干扰项，正确选项以省略should者居多，如1)和2)。

　　1)The doctor advised that Mr.Malan _____ an operation right away so as to save his life.(1998.6)

　　A.had

　　B.was going to

　　C.have

　　D.would have

　　答案：C

　　2)His mother insisted that he _____ the coat when going out.(1999.6)

　　A.put on

　　B.puts on

　　C.to put

　　D.putting on

　　答案：A

　　并且常是not do something, 或be的形，尤其是 not be done的形式。如：

　　Mike's uncle insists ____ in this hotel.

　　A.staying not

　　B.not to stay

　　C.that he would not stay

　　D.that he not stay

　　答案：D

　　It is recommended that the project _____ until all the preparations have been made.

　　A.is not started

　　B.will not be started

　　C.not be started

　　D.is not to be started

　　答案：C

　　As Commander-in-Chief of the armed forces, I have directed that all measures ____ for our defense.

　　A.had been taken

　　B.would be taken

　　C.be taken

　　D.to be taken

　　答案：C

　　另外这类考题还常借助于动词本身的句法结构设干扰项。如insist后可接doing something, being done或 on doing something的结构，suggest后也可接动名词。

　　注意： 如suggest, insist不表示"建议" 或"坚持要某人做某事时"，即它们用于其本意"暗示、表明"、"坚持认为"时，宾语从句用陈述语气。

　　(错)You pale face suggests that you (should)be ill.

　　(对)Your pale face suggests that you are ill.

　　② 表示"命令""建议"或"要求"的名词后面的同位语或表语从句中同样是用should + 原形动词，should可以省略。

　　与上面一条相同，表示这些概念的名词如suggestion, advice, order, proposal等后面的that从句中虚拟语气使用规则相同，如6)中都是that引导的表语从句中使用should + 原形动词，should省略的结构。

　　6)The general's command is that the soldiers ____ their fort and carry out more important tasks.(2002.6)

　　A.would leave

　　B.leave

　　C.left

　　D.have left

　　答案：B

　　再如：

　　We are all for your proposal that the discussion ____.

　　A.be put off

　　B.was put off

　　C.should put off

　　D.is to be out off

　　答案：A

　　The suggestion that the mayor ________the prizes was accepted by everyone.

　　A.would present

　　B.present

　　C.presents

　　D.ought to present

　　答案：B

　　三、非谓语动词 不定式(to + V)

　　动名词

　　分词-ing

　　分词-ed

　　(一)动词不定式(to+动词原形)

　　动词不定式的语法功能

　　可以做除谓语动词以外的任何句子成分。

　　1)作主语

　　不定式或不定式短语作主语时，谓语动词用第三人称单数。如：

　　To serve the people well is our duty.

　　动词不定式短语作主语时，往往放在谓语动词的后面，用引导词it作形式主语。上述句子也可改为：

　　It is our duty to serve the people well.

　　类似这样不定式做主语的句型有:

　　It is + n.+ to do

　　It takes sb.+ some time + to do

　　It is +adj.+ for sb.+ to do

　　It is + adj.+ of sb.+ to do

　　例如：

　　It is our duty to help them.

　　It will take you quite a long time to finish it.

　　It is easy for us to answer this question.

　　It is kind of you to help me.

　　注：

　　1)for sb.常用于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：

　　2)of sb.的句型一般表示人物的性格，品德，表示主观感情或态度的形容词，如good, kind, nice, clever, foolish, right等。

　　2)作宾语

　　We hope to have more opportunities to talk with native speakers.

　　注意：

　　如果不定式作宾语而又跟有补语，这时，通常要用"it"作形式宾语，而将不定式放到补语后面去。

　　例如：

　　他们发现提前把一切都准备好是不可能的。

　　×They found to get everything ready in advance impossible.

　　宾语　宾补

　　×They found to get everything ready in advance is impossible.

　　√They found it impossible to get everything ready in

　　宾补　宾语

　　advance.

　　再看下面的两个例句：

　　I consider it my duty to point out their shortcomings.

　　Robert doesn't think it advisable for Mary to be on a diet.

　　三级出题方式：

　　I _____ to point out their shortcomings.

　　A.consider it my duty

　　B.consider it is my duty

　　3)作定语

　　This is the best way to solve the problem.

　　注意：

　　①用不定式作定语时，它与它所修饰的词有时是动宾关系，所以如果不定式是不及物动词，其后面应跟上必要的介词。

　　例如：

　　Mary needs a friend to play with.

　　There is nothing to worry about.

　　Because air pollution has been greatly reduced, this city is still _____ .

　　A.a good place to live

　　B.a good place for living in

　　C.a good place to be lived in

　　D.a good place to live in

　　答案：D

　　②不定式作定语，如果与他所修饰的词是动宾关系，则不定式后面不能再带宾语。

　　例如：

　　×Here is a letter for you to type it.

　　√Here is a letter for you to type.

　　×The smell tells the bees what kind of flowers to look for them.

　　√The smell tells the bees what kind of flowers to look for.

　　同时要注意：在这类结构中，常用不定式的主动式代替被动式。

　　4)作状语

　　In order to overcome difficulties, we must work hard.

　　注意：

　　①不定式能够修饰作表语或宾语补足语的形容词，在句中作状语，这时不定式不能再带宾语。

　　例如：

　　√The water is unfit to drink.

　　×The water is unfit to drink it.

　　√They found Mr.Jones' lecture hard to understand.

　　×They found Mr.Jones' lecture hard to understand it.

　　同时要注意：在这类结构中，常用不定式的主动式代替被动式。

　　②作状语的不定式的逻辑主语必须与句子主语一致。

　　例如：

　　×To save money, the bus was taken instead of plane.

　　√To save money, we took the bus instead of plane.

　　让我们看一道2005年11月份的三级试题：

　　To succeed in a scientific experiment,______.

　　A.one needs being patient person.

　　B.patience is to need.

　　C.one needs to be patient.

　　D.patience is what needed.

　　答案：C

　　2.不定式的逻辑主语

　　如要表明不定式或不定式的动作发出者(即逻辑主语)，就要在不定式前用for+名词(或代词的宾格)。如：

　　Is the road wide enough for two cars to pass?

　　The conference is too important for you to miss.

　　3.不定式的时态和语态

　　不定式有一般、完成、进行等几种常用的形式，也有主动和被动语态的区别。以study为例：

　　主动/被动一般式to study; to be studied

　　进行式to be studying

　　完成式to have studied; to have been studied

　　1)不定式的时态

　　不定式的一般式(to do)所表示的动作与谓语动词所表示的动作是同时发生，或是在其后发生的。如：

　　Thousands of young people are learning to ski.

　　不定式的进行式(to be doing)所表示的动作与谓语动词的动作是同时进行的，而且是正在进行的。如：

　　They seemed to be getting along quite well.

　　不定式的完成进行时(to have done)表示限于谓语动词之前发生的动作或状态，to have + V-ed 表示动作，to have been 表示状态。如：

　　She seems to have finished her work.

　　不定式的完成进行时表示动作在谓语动词之前发生，而且一直进行着。如：

　　She was happy to have been staying with her aunt.

　　2)不定式的语态

　　每个不定式都有其逻辑主语，如果逻辑主语是动作的发出者，不定式用主动式，如果其逻辑主语是动作的承受者，不定式用被动式。如：

　　The doctor recommended him to air the room.

　　医生建议他打扫房间。

　　The doctor recommended the room to be aired.

　　医生建议打扫房间。

　　考试重点：使用不带to的不定式的几种情况

　　(1)在口语中，以why开头的简单问句中。例如：

　　Why do it that way?

　　Why not go out for a walk?

　　(2)某些使役动词，如make, let，have等后面跟动词不定时作宾语补足语时，用省略to的不定式。如：

　　Let him do it.让他做吧。

　　I would have you know that I am ill.我想要你知道我病了。

　　(3)表示生理感觉的动词后接不定时作宾语补足语时，不定式不带to.这类词有：

　　feel　觉得　observe 注意到，看到　hear听到

　　watch注视　listen to听　perceive察觉，感知

　　notice注意　see看见　look at看]

　　注意：

　　表示 "感觉"的动词，既可以用不带to 的不定式作宾语补足语，又可以用现在分词作宾语补足语，但两者有含义上的差别。现在分词作这些动词的宾语补足语，表示动作的进行，以不带to的不定式作这些动词的宾语补足语,表示动作的完成。

　　例如:

　　I heard her playing the violin.

　　我听到她在拉小提琴.

　　I don't see the ball break the window.

　　我没有看到球砸坏玻璃.

　　注意：

　　上述使役动词与感觉动词转换为被动结构时，其后的不定式需带to，如：

　　He was seen to come.

　　The boy was made to go to bed early.

　　(4)在do nothing/anything/everything but(except)结构中。例如：

　　Last night I did nothing but watch TV.

　　昨天晚上，除了看电视，我什么也没干。

　　但是，如果谓语动词不是"do nothing，anything，everything"，那么but(except)所跟的不定式则仍须带to.

　　The doctor told him nothing but to stop smoking.

　　医生除了让他戒烟，其它什么都没有说。

　　There was nothing for them to do but remain silent.

　　除了保持沉默以外，他们没有别的办法。

　　记忆口诀：

　　前面有do，后面省to，前面无do，后面带to.

　　(5)下面这些词组是不定式的习惯用法，只能用省to的不定式形式。

　　can not help but do(不得不)

　　can not but do(不得不)

　　cannot choose but do(只能)

　　have no choice but do (只能)

　　had better do(最

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