本试题 “The manager's demand was that the data ______ to in his report ______ to Mr. Andrew without delay.[ ]A. referred; be e-mailedB. referring; should b...” 主要考查您对过去分词
虚拟语气
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。
过去分词的概念：
过去分词一般表示完成和被动的动作，只有一种形式。即：动词原形加-ed构成。
如：fallen leaves 落叶
boiled water 开水
I heard the door closed. 我听见门被关上了。
过去分词与现在分词被动式的区别：
两者均可表示被动，其区别主要在于它们所表示的时间概念不同，但有时它们也可表示相同的意思。
如：Written in haste, the book has many mistakes. 这书因写得仓促，所以错误不少。
Being written in haste, the book has many mistakes. 这书因写得仓促，所以错误不少。
Having been written in haste, the book has many mistakes. 这书因写得仓促，所以错误不少。
有时虽然所表示的时间概念相同，但有细微区别：
如：Having been show the lab, we left. 被领着看了实验室后，我们就离开了。
过去分词的句法功能：
1、作定语：
如：I don't like the book written by Martin.
Our class went on an organized trip last Monday. 上周一我们班开展了一次有组织的旅行。
注意：当过去分词是单词时，一般用于名词前，如果是过去分词短语，就放在名词的后面。过去分词做定语相当于一个被动语态的定语从句。
2、过去分词作表语：
如：They were very excited at the news. 听到这个消息，他们非常激动。
The window is broken. 窗户破了。
They were frightened at the sad sight. 他们对眼前悲惨的景象感到很害怕。
注意：be+过去分词，如果表示状态是系表结构，如果表示被动的动作是被动语态。
区别：The window is broken.（系表）
The window was broken by the boy.（被动）
有些过去分词是不及物动词构成的，不表示被动，只表示完成。
如：boiled water（开水） fallen leaves（落叶） newly arrived goods（新到的货） the risen sun（升起的太阳） the changed world（变了的世界）
这类过去分词有：gone, come, fallen, risen, changed, arrived, returned, passed等。
3、过去分词作宾语补足语：
如：I heard the song sung several times last week. 上周我听见这首歌被唱了好几次。
有时过去分词做with短语中的宾语补足语：
如：With the work done, they went out to play. 工作做完了，他们出去玩去了。
4、过去分词作状语：
如：Praised by the neighbours, he became the pride of his parents. 受到邻居们的表扬，他成为父母的骄傲。（表示原因）
Onceseen, it can never be forgotten. 一旦它被看见，人们就忘不了。（表示时间）
Given more time, I'll be able to do it better. 如果给予更多的时间，我能做得更好。（表示条件）
Though told of the danger, he still risked his life to save the boy. 虽然被告之危险，他仍然冒生命危险去救那个孩子。（表示让步）
Filled with hopes and fears, he entered the cave. 心中充满了希望与恐惧，他走进山洞。
5、过去分词与逻辑主语构成独立主格：
如：All books returned at the end of the term, the library assistant was satisfied. 所有的书期末时都还了，图书管理员很高兴。
The field ploughed, he began to spread seed. 地耕好了，他开始撒种子。
现在分词与过去分词的区别：
1、分词作表语：
分词做表语有两种情况，一种是现在分词做表语，一种是过去分词做表语，这两者区别是考试中经常考到的地方。一般来说，表示心理状态的动词如excite，interest等都是及物动词，汉语意思不是“激动”，“高兴”，而是“使激动”、“使高兴”，因而现在分词应该是“令人激动的”、“令人高兴的”，过去分词则是“感到激动的”和“感到高兴的”。所以，凡表示“令人……的”都是-ing形式，凡是表示“感到……”都用-ed形式。换句话说，若人对……感兴趣，就是somebody is in terestedi n...，若人/物本身有兴趣时，就是说sb./sth. is interesting。这类词常见的有：
interesting 使人感到高兴—interested感到高兴的
exciting令人激动的—excited感到激动的
delighting令人高兴的—delighted感到高兴的
disappointing令人失望的—disappointed感到失望的
encouraging令人鼓舞的—encouraged感到鼓舞的
pleasing令人愉快的—pleased感到愉快的
puzzling令人费解的—puzzled感到费解的
satisfying令人满意的—satisfied感到满意的
surprising令人惊异的—surprised感到惊异的
worrying令人担心的—worried感到担心的
如：Travelling is interesting but tiring. 旅行是有趣的，但是使人疲劳。
The pupils will get confused if they are made to learn too much. 如果要学生学得太多，他们会感到糊涂的。
The game is exciting. (现在分词作表语)
We were excited at the news. (过去分词作表语)
2、分词作定语：
分词作定语时有下面几个特点：
1)现在分词表示主动意义，过去分词一般表示被动含意。
2)现在分词表示正在进行，过去分词表示状态或做完(完成)的事。
如：He rushed into the burning house. 他冲进了正在燃烧着的房子。
The child standing over there is my brother. 站在那儿的男孩子是我弟弟。
The room facing south is our classroom. 朝南的房间是我们的教室。
He is an advanced teacher. 他是个先进教师。
3)下列不及物动词也以过去分词形式做定语或表语，但不具有被动意义，这点要注意：
departed, elapsed, faded, fallen, gone, frown-up, retired, returned, risen, set, vanished, much-traveled, newly-arrived, recently-come
3、分词作状语：
现在分词做状语与过去分词做状语的最主要区别在于两者与所修饰的主语的主动与被动关系的区别。
1)现在分词作状语时，现在分词的动作就是句子主语的动作，它们之间的关系是主动关系。
如：He went out shutting the door behind him. 他出去后将门随手关上。
Not knowing what to do, he went to his parents for help. 由于不知如何办是好，他去找父母帮忙。
Smiling, they came in.
2)过去分词作状语时，过去分词表示的动作是句子主语承受的动作，它们之间的关系是被动关系。
如：Cleaned, the room looks nice.
Given more attention, the trees could have grown better. 如果对这些树多关心一些，它们本来会长得更好。
Faced with difficulties, we must try to overcome them. 在遇到困难的时候，我们必须设法克服。
虚拟语气的概念：
虚拟语气用来表示说话人的主观愿望或假想，所说的是一个条件，不一定是事实，或与事实相反。在条件句中的应用条件句可分为两类，一类为真实条件句，一类为非真实条件句。非真实条件句表示的是假设的或实际可能性不大的情况，故采用虚拟语气。
虚拟语气在条件句中的应用：
一、真实条件句：
真实条件句真实条件句用于陈述语气，假设的情况可能发生，其中if是如果的意思。
时态关系句型：条件从句：一般现在时；主句：shall/will+动词原形
如：If he comes, he will bring his violin.
典型例题：
The volleyball match will be put off if it___.
A. will rain
B. rains
C. rained
D. is rained
答案：B。真实条件句主句为将来时，从句用一般现在时。
注意：1）在真实条件句中，主句不能用be going to表示将来，该用shall, will。
如： （错） If you leave now, you are never going to regret it.
（对） If you leave now, you will never regret it.
2）表示真理时，主句谓语动词便不用shall(will)+动词原形，而直接用一般现在时的动词形式。
二、非真实条件句：
非真实条件句表示的是假设的或实际可能性不大的情况，故采用虚拟语气。
1）时态：可以表示过去，现在和将来的情况。它的基本特点是时态退后。
a. 同现在事实相反的假设。
句型：从句：一般过去时；主句：should(would)+动词原形
如：If they were here, they would help you.
b.表示于过去事实相反的假设。
句型：条件从句：过去完成时；主句：should(would)have+过去分词
如：If she had worked harder, she would have succeeded.
The rice would not have been burnt if you had been more careful.
If my lawyer had been here last Saturday, he would have prevented me from going.
c.表示对将来的假想句型：
条件从句：一般过去时；主句：should+动词原形
从句： were+不定式；主句：would+动词原形 should+动词原形
如：If you succeeded, everything would be all right.
If you should succeed, everything would be all right.
If you were to succeed, everything would be all right.
三、混合条件句：
主句与从句的动作发生在不同的时间，这时主，从句谓语动词的虚拟语气形式因时间不同而不同，这叫做混合条件句。
如：If you had asked him yesterday, you would know what to do now. （从句与过去事实相反，主句与现在事实相反。）
If it had rained last night (过去), it would be very cold today (现在).
比较if only与only if：
only if表示“只有”；if only则表示“如果……就好了”。If only也可用于陈述语气。
如：I wake up only if the alarm clock rings. 只有闹钟响了，我才会醒。
If only the alarm clock had rung. 当时闹钟响了，就好了。
If only he comes early. 但愿他早点回来。
It is(high) time that It is(high) time that 后面的从句谓语动词要用过去式或用should加动词原形，但should不可省略。
如：It is time that the children went to bed.
It is high time that the children should go to bed.
need“不必做”和“本不该做"”
didn't need to do表示：过去不必做某事，事实上也没做。
needn'thavedone表示：过去不必做某事，但事实上做了。
如：John went to the station with the car to meet Mary, so she didn't need to walk back home.
约翰开车去车站接玛丽，所以她不必步行回家了。
John went to the station with the car to meet Mary, so she needn't have walked back home.
约翰开车去车站接玛丽，所以她本不必步行回家了。(Mary步行回家，没有遇上John的车。)
典型例题：
There was plenty o ftime. She___.
A. mustn't have hurried
B. couldn't have hurried
C. must not hurry
D. needn't have hurried
答案：D。needn't havedone. 意为"本不必"，即已经做了某事，而时实际上不必要。 Mustn't have done用法不正确，对过去发生的事情进行否定性推断应为couldn't have done,“不可能已经”。must not do不可以（用于一般现在时）
特殊的虚拟语气词should 的用法：
1）It is demanded/necessary/a pity+that…结构中的主语从句的谓语动词要用should加动词原形，should可省略。
句型：
如：It is suggested that we(should) hold a meeting next week.
It is necessary that he(should) come to our meeting tomorrow.
2）在宾语从句中的应用在表示命令、建议、要求等一类动词后面的从句中。order, suggest, propose, require, demand, request, insist, command, insist+(should)do
如：I suggest that we(should) hold a meeting next week.
He insisted that he(should) be sent there.
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。
如：The guard at gate insisted that everybody obey the rules.
判断改错：（错）You pale face suggests that you(should) be ill.
（对）Your pale face suggests that you are ill.
（错）I insisted that you(should) be wrong.
（对）I insisted that you were wrong.
3）在表语从句，同位语从句中的应用在suggestion, proposal, idea, plan, order, advice等名词后面的表语从句、同位语从句中要用虚拟语气，即（should）+动词原形。
如：My idea is that we(should) get more people to attend the conference.
I make a proposal that we(should) hold a meeting next week.
虚拟语气知识体系：
| 条件从句中的谓语动词形式 | 主句中的谓语动词形式 | |
| 与过去事实相反 | had+过去分词 | should/would+have+过去分词 |
| 与现在事实相反 | 过去式 | should/would+动词原形 |
| 与将来事实相反 | 1、过去式 | should/would+动词原形 |
| 2、should+动词原形 | should/would+动词原形 | |
| 3、were to+动词原形 | should/would+动词原形 |
虚拟条件句的倒装：
虚拟条件句的从句部分如果含有were, should, 或had, 可将if省略，再把were, should或had移到从句句首，实行倒装。
如：Were they here now, they could help us.=If they were here now, they could help us.
Had you come earlier, you would have met him=If you had come earlier, you would have met him.
Should it rain, the crops would be saved.=Were it to rain, the crops would be saved.
注意：在虚拟语气的从句中，动词“be”的过去时态一律用“were”，不用was，即在从句中be用were代替。
如：If I were you, I would go to look for him. 如果我是你，就会去找他。
If he were here, everything would be all right. 如果他在这儿，一切都会好的。
典型例题：_____to do the work, I should do it some other day.
A. If were I
B. I were
C. Were I
D. Was I
答案：C. 在虚拟条件状语中如果有were, should, had这三个词，通常将if省略，主语提前，变成were, should, had+主语的形式。
但要注意，在虚拟条件状语从句中，省略连词的倒装形式的句首不能用动词的缩略形式。如我们可说Were I not to do.，而不能说Weren't I to do。
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