2007年高考语法讲义（二十）主谓一致
主谓一致是指：
1、语法形式上要一致，即单复数形式与谓语要一致。
2、意义上要一致，即主语意义上的单复数要与谓语的单复数形式一致。
3、就近原则，即谓语动词的单复形式取决于最靠近它的词语，
一般来说，不可数名词用动词单数，可数名词复数用动词复数。例如：
There is much water in the thermos.
但当不可数名词前有表示数量的复数名词时，谓语动词用复数形式。例如：
Ten thousand tons of coal were produced last year.
一、并列结构作主语时谓语用复数，例如：
Reading and writing are very important. 读写很重要。
注意：当主语由and连结时，如果它表示一个单一的概念，即指同一人或同一物时，谓语动词用单数，and 此时连接的两个词前只有一个冠词。例如：
The iron and steel industry is very important to our life. 钢铁工业对我们的生活有重要意义。
典型例题
The League secretary and monitor ___ asked to make a speech at the meeting.
A. is B. was C. are D. were
答案B. 注： 先从时态上考虑。这是过去发生的事情应用过去时，先排除A.，C。本题易误选D，因为The League secretary and monitor 好象是两个人，但仔细辨别，monitor 前没有the，在英语中，当一人兼数职时只在第一个职务前加定冠词。后面的职务用and 相连。这样本题主语为一个人，所以应选B。
二、主谓一致中的靠近原则
1、当there be 句型的主语是一系列事物时，谓语应与最邻近的主语保持一致。例如：
There is a pen, a knife and several books on the desk. 桌上有一支笔、一把小刀和几本书。
There are twenty boy-students and twenty-three girl-students in the class.班上有二十个男孩，二十三个女孩。
2、当either… or… 与neither… nor，连接两个主语时，谓语动词与最邻近的主语保持一致。如果句子是由here, there引导，而主语又不止一个时，谓语通常也和最邻近的主语一致。例如：
Either you or she is to go. 不是你去，就是她去。
Here is a pen, a few envelops and some paper for you. 给你笔、信封和纸。
三、谓语动词与前面的主语一致
当主语有with, together with, like, except, but, no less than, as well as 等词组成的短语时，谓语动词与前面的主语部分一致。例如：
The teacher together with some students is visiting the factory. 教师和一些学生在参观工厂。
He as well as I wants to go boating.他和我想去划船。
四、谓语需用单数
1、代词each以及由every, some, no, any等构成的复合代词作主语时，或主语中含有each, every时, 谓语需用单数。例如：
Each of us has a tape-recorder. 我们每人都有录音机。
There is something wrong with my watch. 我的表坏了。
2、当主语是一本书或一条格言时，谓语动词常用单数。例如：
The Arabian Night is a book known to lovers of English. 《天方夜谭》是英语爱好者熟悉的一本书。
3、表示金钱，时间，价格或度量衡的复合名词作主语时，通常把这些名词看作一个整体，谓语一般用单数。例如：
Three weeks was allowed for making the necessary preparations. 用三个星期来做准备。
Ten yuan is enough. 十元够了。
五、指代意义决定谓语的单复数
1、代词what, which, who, none, some, any, more, most, all等词的单复数由其指代的词的单复数决定。例如：
All is right. 一切顺利。
All are present. 人都到齐了。
2、集体名词作主语时，谓语的数要根据主语的意思来决定。如family, audience, crew, crowd, class, company, committee等词后，谓语动词用复数形式时强调这个集体中的各个成员，用单数时强调该集体的整体。例如：
His family isn't very large. 他家成员不多。
His family are music lovers. 他家个个都是音乐爱好者。
但集合名词people, police, cattle, poultry等在任何情况下都用复数形式。例如：
Are there any police around 附近有警察吗？
3、有些名词，如variety, number, population, proportion, majority 等有时看作单数，有时看作复数。例如：
A number of +名词复数+复数动词。
The number of +名词复数+单数动词。
A number of books have lent out.
The majority of the students like English.
六、与后接名词或代词保持一致
1、用half of, most of, none of, heaps of, lots of, plenty of 等引起主语时，谓语动词通常与of后面的名词/代词保持一致。例如：
Most of his money is spent on books. 他大部分的钱化在书上了。
Most of the students are taking an active part in sports. 大部分学生积极参与体育运动。
2、用a portion of, a series of, a pile of, a panel of 等引起主语时，谓语动词通常用单数。例如：
A series of accidents has been reported. 媒体报道了一连串的事故。
A pile of lots was set beside the hearth. 炉边有一堆木柴。
3、如 many a 或 more than one 所修饰的短语作主语时，谓语动词多用单数形式。但由more than… of 作主语时，动词应与其后的名词或代词保持一致。例如：
Many a person has read the novel. 许多人读过这本书。
More than 60 percent of the students are from the city.百分之六十多的学生来自这个城市。2007年高考语法讲义（二十一）虚拟语气
1、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。虚拟语气在条件句中应用比较多。
2、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。
一、真实条件句用于陈述语气，假设的情况有可能发生。各种结构参见下表：
句型 条件从句 主句
一般现在时 shall/will + 动词原形
祈使句
情态动词一般现在时
例如：If he comes, he will bring his violin. 如果他来，会带小提琴来的。
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.
（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
1、虚拟语气可以表示过去，现在和将来的情况，时态的基本特点是时态往后推移。
a. 与现在事实相反的假设
条件从句 主句
一般过去时（be用were） should（would）等 +动词原形
例如：If they were here, they would help you. 如果他们在这儿，会帮助你的。
含义：They are not here, they can’t help you.
b. 与过去事实相反的假设
条件从句 主句
过去完成时 should（would）等+ have+ 过去分词
例如：If he had come yesterday, I should / would have told him about it.如果他昨天来的话，我会把这件事告诉他的。
含义：He did not come yesterday, so I did not tell him about it.
c. 表示对将来不大可能发生的事情的假想
条件从句 主句
一般过去时 should/would等 + 动词原形
were+ 不定式
should+ 动词原形
例如：If you succeeded, everything would be all right. 如果你将来成功了，一切都会好的。
If you should succeed, everything would be all right.
If you were to succeed, everything would be all right.
含义：You are not likely to succeed, everything will be what it is now.
三、混合条件句
有时，主句与从句的动作发生在不同的时间，主句从句谓语动词的虚拟语气形式因时间不同而不同，这种条件句叫做混合条件句。例如：
If you had asked him yesterday, you would know what to do now. 如果你昨天问过他，今天就知道做什么了。
（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）.如果昨晚下过雨，今天就会很冷了。
四、虚拟条件句的倒装
虚拟条件句的从句部分含有were, should, 或had时, 可省略if，再把were, should或had 移到从句的句首，实行倒装。例如：
Were they here now, they could help us. =If they were here now, they could help us.他们现在在的话，就会帮助我们了。
Had you come earlier, you would have met him. =If you had come earlier, you would have met him.你来得早一点，就碰到他了。
Should it rain, the crops would be saved. =Were it to rain, the crops would be saved.假如下雨，庄稼就有救了。
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。例如：
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。
五、特殊的虚拟语气词should
1、在主语从句中的应用
It is demanded / necessary / a pity + that…等结构的主语从句，谓语动词用should 加动词原形，should 可省略。
It is 可用的词有三类 that （should）do
suggested, ordered, required, proposed, demanded, requested, insisted等
important, necessary, natural, imperative, strange等
a pity, a shame, no wonder等
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，像order, suggest, propose, require, demand, request, insist, command, insist + （should） do等。例如：
I suggest that we （should） hold a meeting next week. 我建议下周召开个会议。
He insisted that he （should ） be sent there.他要求被派到那儿去。
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。
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
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。例如：
My idea is that we（should）get more people to attend the conference.我的想法是让更多的人来参加会议。
I make a proposal that we（should）hold a meeting next week.我提了个建议，下周我们开个会。
六、wish的用法
1）wish后面的从句，表示与事实相反的情况，或表示将来不太可能实现的愿望。其宾语从句的动词形式为：
主句 从句
从句动作先于主句动词动作（be的过去式为 were） 现在时 过去时
从句动作与主句动作同时发生（had + 过去分词） 过去时 过去完成时
将来不大可能实现的愿望 将来时 would/could +动词原形
例如：I wish I were as tall as you. 我希望和你一样高。
He wished he hadn't said that. 他希望他没讲过那样的话。
I wish it would rain tomorrow. 我希望明天下雨就好了。
2）wish to do；wish sb / sth to do。例如：
I wish to see the manager. = I want to see the manager. 我希望见一见经理。
I wish the manager to be informed at once. （= I want the manager to be informed at once.）我希望经理能马上得到消息。
七、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。例如：
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. 当时闹钟响就好了。
If only he comes early. 但愿他早点回来。
八、 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。例如：
It is time that the children went to bed. 孩子们该睡觉了。
It is high time that the children should go to bed.
九、need "不必做"和"本不必做"
didn't need to do表示过去不必做某事, 事实上也没做。
needn't have done表示过去不必做某事, 但事实上做了。例如：
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步行回家了，没有遇上John的车。）
典型例题
There was plenty of time. 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 have done. 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）。
2007年高考语法讲义（十九）倒装
一、倒装句之全部倒装
全部倒装是只将句子中的谓语动词全部置于主语之前。此结构通常只用于一般现在时和一般过去时。常见的结构有：
1、here, there, now, then, thus等副词置于句首, 谓语动词常用be, come, go, lie, run等表示来去或状态的动词。例如：
Then came the chairman. 那时总裁来了。
Here is your letter. 你的信。
2、表示运动方向的副词或地点状语置于句首，谓语表示运动的动词。例如：
Out rushed a missile from under the bomber. 轰炸机肚底下窜出一枚导弹。
Ahead sat an old woman. 前面坐着一个老妪。
注意：上述全部倒装的句型结构的主语必须是名词，如果主语是人称代词则不能完全倒装。例如：
Here he comes. 他来了。
Away they went. 他们走开了。
二、倒装句之部分倒装
部分倒装是指将谓语的一部分如助动词或情态倒装至主语之前。如果句子的谓语没有助动词或情态动词，则需添加助动词do, does或did，并将其置于主语之前。
1、句首为否定或半否定的词语，如no, not, never, seldom, little, hardly, at no time, in no way, not until… 等。例如：
Never have I seen such a performance. 从未见过如此糟糕的表演。
Nowhere will you find the answer to this question. 无论如何你不会找到这个问题的答案的。
Not until the child fell asleep did the mother leave the room. 母亲一直到孩子入睡后离开房间。
2、当Not until引出主从复合句，主句倒装，从句不倒装。注意： 如否定词不在句首不倒装。例如：
I have never seen such a performance.
The mother didn't leave the room until the child fell asleep.
典型例题
1） Why can't I smoke here
At no time___ in the meeting-room
A. is smoking permitted B. smoking is permitted
C. smoking is it permitted D. does smoking permit
答案A. 这是一个倒装问题。当否定词语置于句首以表示强调时，其句中的主谓须用倒装结构。这些否定词包括no, little, hardly, seldom, never, not only, not until等。本题的正常语序是 Smoking is permitted in the meeting-room at no time.
2） Not until the early years of the 19th century ___ what heat is.
A. man did know B. man know C. didn't man know D. did man know
答案D. 看到Not until…的句型，我们知道为一倒装句，答案在C，D 中选一个。
改写为正常语序为，Man did not know what heat is until the early years of the 19th. 现在将not提前，后面就不能再用否定了,否则意思就变了。
三、以否定词开头作部分倒装
如 Not only…but also, Hardly/Scarcely…when, No sooner… than等，要倒装。例如：
Not only did he refuse the gift, he also severely criticized the sender. 他没有收下礼物，还狠狠批评了送礼的人。
Hardly had she gone out when a student came to visit her. 她刚出门，就有个学生来访。
No sooner had she gone out than a student came to visit her. 她刚出门，就有个学生来访。
典型例题
No sooner___ than it began to rain heavily.
A. the game began B. has the game begun
C. did the game begin D. had the game begun
答案D. 以具有否定意义的副词放在句首时，一般采用倒装句（谓语前置）。这类表示否定意义的词有never, seldom, scarcely, little, few, not, hardly, 以及not only…but （also）, no sooner…than, hardly… when scarcely… when 等等。
注意：只有当Not only… but also连接两个分句时，才在第一个分句用倒装结构。如果置于句首的Not only… but also仅连接两个并列词语，不可用倒装结构，如Not only you but also I am fond of music。
四、so, neither, nor作部分倒装
用这些词表示"也"、"也不" 的句子要部分倒装。例如：
Tom can speak French. So can Jack. 汤姆会讲法语，杰克也会。
If you won't go, neither will I.你不去，我也不去。
典型例题
---Do you know Jim quarrelled with his brother
---I don't know, _____.
A. nor don't I care B. nor do I care C. I don't care neither D. I don't care also
答案：B. nor为增补意思"也不关心"，因此句子应倒装。A错在用 don't 再次否定，C neither 用法不对且缺乏连词。D缺乏连词。
注意：当so引出的句子用以对上文内容加以证实或肯定时，不可用倒装结构。意为"的确如此"。例如：
Tom asked me to go to play football and so I did. 汤姆邀我去踢球，我去了。
---It's raining hard.---So it is. 雨下得真大。是呀。
五、only在句首倒装的情况。例如：
Only in this way, can you learn English well. 只有这样，你才能学好英语。
Only after being asked three times did he come to the meeting. 叫了三次，他才来参加会议。
如果句子为主从复合句，则主句倒装，从句不倒装。例如：
Only when he is seriously ill does he ever stay in bed. 病得狠重时，他才卧床休息。
六、as, though 引导的倒装句
as / though引导的让步从句必须将表语或状语提前（形容词, 副词, 分词, 实义动词提前）。但需注意：
1） 句首名词不能带任何冠词。
2） 句首是实义动词, 其他助动词放在主语后。如果实义动词有宾语和状语，随实义动词一起放在主语之前。例如：
Try hard as he will, he never seems able to do the work satisfactorily. 他工作很努力，但总不能让人满意。
注意：让步状语从句中，有though，although时，后面的主句不能有but，但是 though 和yet可连用。
七、其他部分倒装
1、so… that 句型中的so 位于句首时，需倒装。例如：
So frightened was he that he did not dare to move an inch. 他害怕得很，动也不敢动。
2、在某些表示祝愿的句型中。例如：
May you all be happy. 愿你们都快乐。
3、在虚拟语气条件句中从句谓语动词有were, had, should等词，可将if 省略，把 were, had, should 移到主语之前，采取部分倒装。例如：
Were I you, I would try it again. 我是你的话，就再试一次。
典型例题：
1）Not until the early years of the 19th century___ what heat is
A. man did know B. man knew C. didn't man know D. did man know
答案为D. 否定词Not在句首，要求用部分倒装的句子结构。
2）Not until I began to work ___ how much time I had wasted.
A. didn't I realize B. did I realize C. I didn't realize D. I realize
答案为B。
3） Do you know Tom bought a new car
I don't know, ___.
A. nor don't I care B. nor do I care
C. I don't care neither D. I don't care also
答案为B. 句中的nor引出部分倒装结构，表示"也不"。由 so, neither, nor引导的倒装句，表示前一情况的重复出现。其中, so用于肯定句, 而 neither, nor 用在否定句中。
2007年高考语法讲义（十八）情态动词
一、情态动词的语法特征
1、情态动词不能表示正在发生或已经发生的事情，只表示期待或估计某事的发生。
2、情态动词除ought 和have 外，后面只能接不带to 的不定式。
3、情态动词没有人称，数的变化，即情态动词第三人称单数不加-s。
4、情态动词没有非谓语形式，即没有不定式，分词，等形式。
二、比较can 和be able to
1、can/could 表示能力；可能 （过去时用could）, 只用于现在式和过去式（could）。be able to可以用于各种时态。例如：
They will be able to tell you the news soon. 他很快就能告诉你消息了。
2、只用be able to的情况：
a. 位于助动词后。
b. 情态动词后。
c. 表示过去某时刻动作时。
d. 用于句首表示条件。
e. 表示成功地做了某事时，用was/were able to，不能用could。例如：
He was able to flee Europe before the war broke out. = He managed to flee Europe before the war broke out.
他在战争爆发之前逃离欧洲。
注意：could有时不表示时态
1）提出委婉的请求，（注意在回答中不可用could）。例如：
--- Could I have the television on 我能看电视吗？
--- Yes, you can. / No, you can't. 可以/不可以。
2）在否定句、疑问句中表示推测或怀疑。例如：
He couldn't be a bad man. 他不大可能是坏人。
三、比较may和might
1、表示允许或请求；表示没有把握的推测；may 放在句首，表示祝愿。例如：
May God bless you! 愿上帝保佑你！
He might be at home. 他可能在家。
注意：might 表示推测时，不表示时态，只是可能性比may 小。
2、成语：may/might as well，后面接不带to 的不定式，意为"不妨"。例如：
If that is the case, we may as well try.如果情况确实如此，我们不妨试一试。
典型例题
Peter ___come with us tonight, but he isn't very sure yet.
A. must B. may C. can D. will
答案B. 表可能性只能用may。此句意可从后半句推出。
四、比较have to和must
1、两词都是'必须'的意思，have to 表示客观的需要，must 表示说话人主观上的看法，既主观上的必要。例如：
My brother was very ill, so I had to call the doctor in the middle of the night.
弟弟病得很厉害，我只得半夜里把医生请来。（客观上需要做这件事）
He said that they must work hard. 他说他们必须努力工作。（主观上要做这件事）
2、have to有人称、数、时态的变化，而must只有一种形式。但must 可用于间接引语中表示过去的必要或义务。例如：
He had to look after his sister yesterday. 他昨晚只得照顾他姐姐。
3、否定结构中：don't have to表示"不必"，mustn't表示"禁止"。例如：
You don't have to tell him about it. 你不一定要把此事告诉他。
You mustn't tell him about it. 你不得把这件事告诉他。
五、must表示推测
1、must用在肯定句中表示较有把握的推测，意为"一定"。
2、must表对现在的状态或现在正发生的事情的推测时，must 后面通常接系动词be 的原形或行为动词的进行式。例如：
You have worked hard all day. You must be tired. 你辛苦干一整天，一定累了。（对现在情况的推测判断）
He must be working in his office. 他一定在办公室工作呢。
比较：He must be staying there. 他现在肯定在那里。
He must stay there. 他必须呆在那。
3、must 表示对已发生的事情的推测时，must 要接完成式。例如：
I didn't hear the phone. I must have been asleep. 我刚才没有听到电话，我想必是睡着了。
4、must表示对过去某时正发生的事情的推测，must 后面要接不定式的完成进行式。例如：
---Why didn't you answer my phone call 为何不接我的电话？
---Well, I must have been sleeping, so I didn't hear it.唉，肯定在睡觉，所以没有听见。
5、否定推测用can't。例如：
If Tom didn't leave here until five o'clock, he can't be home yet. 如果汤姆五点才离开这儿，他此时一定还未到家。
六、表示推测的用法
can, could, may, might, must 皆可表示推测，其用法如下：
1、情态动词+动词原形，表示对现在或将来的情况的推测，此时动词通常为系动词。例如：
I don't know where she is, she may be in Wuhan. 我不知道她在哪儿，可能在武汉。
2、情态动词+动词现在进行时，表示对现在或将来正在进行的情况进行推测。例如：
At this moment, our teacher must be correcting our exam papers. 这时，想必我们老师正在批改试卷。
3、情态动词+动词完成时，表示对过去情况的推测。例如：
The road is wet. It must have rained last night. 地是湿的，昨天晚上一定下雨了。
4、情态动词+动词的现在完成进行时，表示对过去正在发生事情的推测。例如：
Your mother must have been looking for you. 你妈妈一定一直在找你。
5、推测的否定形式，疑问形式用can't, couldn't表示。例如：
Mike can't have found his car, for he came to work by bus this morning.
迈克一定还没有找回他的车，因为早上他是坐公共汽车来上班的。
注意：could, might表示推测时不表示时态，其推测的程度不如can, may。
七、情态动词+ have +过去分词
1、may（might） have + done sth, can （could） have + done sth 表示过去，推测过去时间里可能发生的事情。例如：
Philip may （might） have been hurt seriously in the car accident. 菲力浦可能在车祸中受了重伤。
Philip can （could） have been hurt seriously in the car accident.
2、must have +done sth，对过去时间里可能发生的事情的推测，语气较强，具有"肯定"，"谅必"的意思。例如：
---Linda has gone to work, but her bicycle is still here. 琳达已经去上班了，但她的单车还在这儿。
---She must have gone by bus.肯定乘巴士去的。
3、ought to have done sth, should have done sth表示本应该做某事，而事实上并没有做。否定句表示"不该做某事而做了"。例如：
You ought to （should） have been more careful in this experiment. 你当时在做试验时应该更仔细点。
He ought not to have thrown the old clothes away.他不该把旧衣服扔了。（事实上已扔了。）
ought to 在语气上比should 要强。
4、needn't have done sth表示本没必要做某事，但做了。例如：
I dressed very warmly for the trip, but I needn't have done so. The weather was hot.
旅行时，我衣服穿得较多，其实没有必要。那时天很热。
5、would like to have done sth表示本打算做某事，但没做。例如：
I would like to have read the article, but I was very busy then. 我想读这篇文章，但太忙了一直没读。
八、should 和ought to
除了上述的用法，两者还可表示"想必一定，按理应该"的意思。例如：
I ought to be able to live on my salary. 靠我的薪水，想必也能维持了。
It ought to be ready now. 想必现在准备好了吧。
They should be there by now, I think. 现在他们该到那儿了。
The poems should be out in a month at most. 诗集估计最多还有一个月就要出版了。
九、had better表示"最好"，相当于一个助动词，它只有一种形式，它后面要跟动词原形。例如：
It is pretty cold. You'd better put on my coat. 天相当冷。你最好穿上我的外套。
She'd better not play with the dog. 她最好不要玩耍那条狗。
had better have done sth表示与事实相反的结果，意为"本来最好"。例如：
You had better have come earlier. 你本该来得早一点。
十、 would rather表示"宁愿"
would rather do
would rather not do
would rather… than… 宁愿…而不愿。
还有would sooner, had rather, had sooner都表示"宁愿"、"宁可"的意思。例如：
If I have a choice, I had sooner not continue my studies at this school. 如果有选择的余地，我宁可辍学离开这个学校。
I would rather stay here than go home. = I would stay here rather than go home. 我宁愿呆在这儿，而不愿回家。
典型例题
----Shall we go skating or stay at home
----Which ___ do
A. do you rather B. would you rather C. will you rather D. should you rather
答案B。本题考查情态动词rather的用法，would rather +do sth 意为"宁愿"，本题为疑问句，would 提前，所以选B。
十一、will和would
注意：1）would like；would like to do = want to 想要，为固定搭配。例如：
Would you like to go with me 想和我一块去吗？
2）Will you… Would you like… 表示肯定含义的请求劝说时，疑问句中一般用some, 而不是any。例如：
Would you like some cake 吃点蛋糕吧。
3）否定结构中用will，一般不用would, won't you是一种委婉语气。
Won't you sit down 你不坐下吗？
十二、情态动词的回答方式
问句 肯定回答 否定回答
Need you… Yes, I must. No, I needn't
Must you… No, I don't have to.
典型例题
1）---Could I borrow your dictionary
---Yes, of course, you____.
A. might B. will C. can D. should
答案C. could表示委婉的语气，并不为时态。答语中of course，表示肯定的语气，允许某人做某事时，用can和 may来表达，不能用could或might。will 与you连用，用来提出要求或下命令。should与you 连用，用来提出劝告。
2）---Shall I tell John about it
---No, you ___. I've told him already.
A. needn't B. wouldn't C. mustn't D. shouldn't
答案A。needn't 不必，不用。 wouldn't 将不, 不会的。 mustn't 禁止、不能。 shouldn't 不应该。本题为不需要，不必的意思，应用needn't。
3）---Don't forget to come to my birthday party tomorrow.
---______.
A. I don't B. I won't C. I can't D. I haven't
答案B. will既可当作情态动词，表请求、建议、也可作为实义动词表"意愿、意志、决心"，本题表示决心，选B。
十三、带to 的情态动词
带to 的情态动词有四个：ought to, have to, used to, be to, 如加上have got to （=must）, be able to，为六个。它们的疑问、否定形式应予以注意：
Do they have to pay their bill before the end of the month
She didn't use to play tennis before she was fourteen.
You ought not to have told her all about it.
Ought he to see a heart specialist at once.
ought to 本身作为情态动词使用。其他的词作为实义动词使用，变疑问，否定时，须有do 等助动词协助。
典型例题
Tom ought not to ___ me your secret, but he meant no harm.
A. have told B. tell C. be telling D. having told
答案A。由于后句为过去时，告诉秘密的动作又发生在其前因，此地应用过去完成时，但它在情态动词 ought to 后，所以用have told。
十四、比较need和dare
这两词既可做实义动词用，又可做情态动词用。作为情态动词，两者都只能用于疑问句，否定句和条件句。need 作实义动词时后面的不定式必须带to，而dare作实义动词用时, 后面的to 时常可以被省略。
1） 实义动词：need（需要, 要求） need + n. / to do sth
2） 情态动词：need，只用原形need后加do，否定形式为need not。例如：
Need you go yet 你要走了吗？
Yes, I must. / No, I needn't.是的，我要走了/不，不急着走。
2007年高考语法讲义（十七）连词
连词不能独立担任句子成分而只起连接词与词，短语与短语以及句与句的作用。连词主要可分为两类：并列连词和从属连词。并列连词用来连接平行的词、词组和分句。如：and, but, or, nor, so, therefore, yet, however, for, hence, as well as, both…and, not only…but also, either…or, neither…nor, （and）then等等。
一、并列连词与并列结构
并列连词引导两个并列的词、词组或句子。
1、and 与or
判断改错：（错）They sat down and talk about something.
（错）They started to dance and sang.
（错）I saw two men sitting behind and whisper there.
（对）They sat down and talked about something.
（对）They started to dance and sing.
（对）I saw two men sitting behind and whispering there.
解析：第一句： and 连接两个并列的谓语，所以 talk 应改为 talked。
第二句：and 连接两个并列的动词不定式，第二个不定式往往省略to，因此sang 应改为 sing。
第三句：and 连接感观动词saw 后面的用作的宾补的两个并列分词结构，因此whisper应改为whispering。
注意：and 还可以和祈使句或名词词组连用表示条件。（or也有此用法）例如：
Make up your mind, and you'll get the chance. 拿定主意，这次你会有机会的。
= If you make up your mind, you'll get the chance.
One more effort, and you'll succeed. 再努力一下，你会成功的。
= If you make one more effort, you'll succeed.
2、both…and 两者都。例如：
She plays （both） the piano and the guitar. 她弹钢琴，也弹吉他。
3、not only…but （also）, as well as不但…而且。例如：
She plays not only the piano, but （also） the guitar. 她不但弹钢琴，也弹吉他。
注意：not only… but also 关联两个分句时，一个分句因有否定词not 而必须倒装。例如
Not only does he like reading stories, but also he can even write some.他不但喜欢读小说，甚至还会写。
4、neither…nor 意思为"既不……也不……"谓语动词采用就近原则，与nor后的词保持一致。例如：
Neither you nor he is to blame. 你和他都不该受指责。
二、比较and和or
1、并列结构中，or通常用于否定句，and用于肯定句。
2、但有时and 也可用于否定句。请注意其不同特点：
There is no air or water in the moon.
There is no air and no water on the moon.
在否定中并列结构用or 连接，但含有两个否定词的句子实际被看作是肯定结构，因此要用and。
典型例题
---I don't like chicken ___ fish.
---I don't like chicken, ___ I like fish very much.
A. and； and B. and； but C. or； but D. or；and
答案C。否定句中表并列用or, but 表转折。
判断改错：（错）We will die without air and water.
（错）We can't live without air or water.
（对）We will die without air or water.
（对）We can't live without air and water.
三、表示选择的并列结构
1、or意思为"否则"。例如：
I must work hard, or I'll fail in the exam. 我要努力学习，否则考试要不及格了。
2、either…or 意思为"或者……或者……"。注意谓语动词的主谓一致采用就近原则。例如：
Either you or I am right. 不是你对，就是我对。
四、表示转折或对比
1、but表示转折，while表示对比。例如：
Some people love cats, while others hate them.有些人喜欢猫，而有些人不喜欢。
典型例题
--- Would you like to come to dinner tonight
--- I'd like to, ___ I'm too busy.
A. and B. so C. as D. but
答案D。but与前面形成转折，符合语意。而表并列的and， 结果的so，原因的as都不符合句意。
2、not…but… 意思为"不是…而是…"，后面的用词要遵循一致原则。
They were not the bones of an animal, but （the bones） of a human being. 这些不是动物的骨头，而是人的。
五、表原因关系
1、for是并列连词，不能置于含两个并列分句的句子的句首，只能将其放在两个分句中间。
判断改错：（错） For he is ill, he is absent today.
（对） He is absent today, for he is ill.
2、so为连词, therefore一般为副词。例如：
He hurt his leg, so he couldn't play in the game. 他的腿受伤了，不能上场。
I think; therefore I exist. 我思故我在。
六、比较so和 such
such 是形容词，修饰名词或名词词组，so是副词，只能修饰形容词或副词。so 还可与表示数量的形容词many，few，much， little连用，形成固定搭配。
so + adj. such + a（n） + n.
so + adj. + a（n） + n. such + n. （pl.）
so + adj. + n. （pl.） such +n. （pl.）
so + adj. + n. （不可数） such +n.（不可数）
so foolish such a fool
so nice a flower such a nice flower
so many/ few flowers such nice flowers
so much/ little money. such rapid progress
so many people such a lot of people
so many 已成固定搭配，a lot of 虽相当于 many，但 a lot of 为名词性的，只能用such搭配。so…that与such…that之间的转换即为 so与such之间的转换。
