⒈疑问词＋不定式结构
疑问词who,what,which,when,where,whether,how后可接不定式构成不定式短语，在句中作主语、宾语、表 语等。如：
①When to leave for London has not been decided yet. ②Mr. Smith didn't know whether to leave or stay there. ③I asked Professor Xu how to learn English well. ④The question was where to get the medicine needed.
以上例句中疑问词＋不定式部分，均可转换为相应的从句形式。如：①When we shall leave… ③…how I could learn…
经常在这种结构中使用的动词有：consider,decide,discover,explain,find out,forget,hear,know,lea rn,observe,understand,wonder等。
⒉动词不定式的时态、语态 (1)时态
①一般式：动词不定式一般式表示的动作发生在谓语动词之后，有时表示同时发生。如： I hope to become a university student this year.（tobecome发生在hope之后） We often hear Dick play the piano in the next room.（play和hear同时发生） ②完成式：表示的动作发生在谓语动词所表示的动作之前。如： I'm sorry to have kept you waiting.
We are too young to have seen the old society. ③进行式：表示的动作与谓语动词同时发生。如：
The teacher happened to be correcting our papers when Icame in. They seemed to be discussing something important. (2)语态
如果动词不定式的逻辑主语是这个不定式所表示的动作的承受者，不定式一般要用被动语态形式。如：
It's a great honour to be invited to Mary's birthday party.（不定式作主语） It was impossible for lost time to be made up.（不定式作主语） I wish to be sent to work in the country.（不定式作宾语）
Can you tell me which is the car to be repaired（不定式作定语） He went to the hospital to be examined.（不定式作状语） 在There be结构中，修饰主语的不定式可用被动，也可用主动。如：There are still many things to t ake care of (to be taken care of).但有时两种形式表达的意思不同，如：These is nothing to do now.( We have nothing to do now.) There is nothing to be done now.(We can do nothing now.)
⒊动名词的时态、语态 (1)时态
①一般式：动名词的一般式所表示的动作可以是泛指，也可与谓语动词同时发生，或发生在谓语动作之前 、之后。如：
We are interested in collecting stamps.
I shall never forget seeing the Great Wall for the firsttime. We are not afraid of dying.
②完成式所表示的动作发生在谓语动词之前。如： Lmagine having travelled on the moon.
We were praised for having finished the work ahead of time. (2)被动语态
①如果动名词的逻辑主语为动名词所表示的动作的承受者，动名词要用被动语态，动名词的被动语态有一 般式与完成式之分。如：
The young man came in without being noticed.
He prided himself on having never been beaten in class. ②有些动词后的动名词用主动形式，但表示被动意义。如： The bike needs repairing.
If a thing is worth doing, it is worth doing well.
⒋在口语中，为避免重复，常用\代替不定式结构，有时甚至可以把to省略。如： ①—Did you go to visit the Great Wall
—No,I wanted to,but there wasn't enough time. ②—Would you like to come to a party —I'd love to.
③—Don't make any mistakes in your homework,will you —I'll try not to.
④—Try to be back by 12,won't you —OK,I'll try.
另外，be going to,ought to,used to等也常用于这一结构中。 ⒌在why引起的问句中，省略\。如： Why spend such a lot of money Why not wait for a couple of days
⒍当两个或更多作用相同的不定式并列使用时，只在第一个不定式前加\。如： It's quite necessary for us to read more and have morepractice. ⒎\在下列短语中是“介词”，后接动名词或名词形式。如： devote…to,face up to（勇敢地面对），look forward to（盼望），object to（反对），take to（养 成习惯，对……感兴趣；开始从事某种活动），be used to（习惯于）等。
五、复合式谓语
3) 记住使用下列正确形式：
①情态动词+原形动词。如：You’d better go over the lesson.（你最好复习这一课。） ②shall/ will/ would+原形动词。如：They should have been there once.（他们应该去过那儿。） ③be+现在分词或者过去分词。如：What are you doing this evening（今晚你打算做什么？）/ Many
trees have been cut down since 1970s.（自从20世纪70年代大批树木被砍伐。）
④have+过去分词。如：Many trees have been cut down since 1970s.（意思同上）
⑤一般时问句和否定句中：do/does/did+原形动词。如：He does not enjoy himself very much.
（他日子过的不好。）/ Did any of you see dinosaur eggs（你们当中有谁见过恐龙蛋吗？） (4)不可用形容词、名词、代词、副词、介词短语等独立作谓语,必须在此之前加连系动词。 (5)谓语动词单复数形式：单数形式的动词有：is,was,has,does以及“动词+s”；复数形式的动词有：are,were,have以及动词原形。其他动词不分单、复数。
谓语部分第一个动词的形式 单数形式 复数形式
一般现在时be(是)动词； 现在某些时态和语态的助动词be
am (单一); are (单二); is (单三); are
一般过去时be(是)动词； 过去某些时态和语态的助动词be was (单一); were (单二); was;(单三) were
一般现在时have(有)动词； 现在完成时态的助动词have
have (单一); have (单二); has (单三); have
一般现在时行为动词和助动词do do (单一、单二); does (单三) do
实意动词和连系动词的一般现在时动词（否定和疑问句除外） 原形动词(单一、单二); 动词+s /es (单三) 原形动词
其他各时态语态的谓语动词 单复数形式相同
记住：主语、谓语单复数必须保持一致。
Air and water is necessary to us all.(空气和水对于我们大家是必不可少的。)
(6)一般问句和反意问句的回答不使用行为动词,应该使用“是”动词、情态动词、助动词(be,will,have,do以及变形)。如：The Olympic Games is held every other year, isn’t it ----Yes, it is.(奥运会每两年举办一次,是吗？----是的。) 3、宾语：
(1) 由名词、代词(人称代词要用宾格)、不定式、动名词、(宾语)从句充当,表示动作的承受者是“谁”或者是“何物”。如： The angel also came to Joseph and told him the same thing.(那个天使同样来到约瑟夫面前并且告诉他同样的事情。)(代词和名词充当两个宾语) / He told me that the company could not afford to pay him so much money.(他告诉我说公司付不起他那么多的钱。)(不定式作宾语) / They enjoy watching football games so much that they often forget their lessons.(他们如此喜爱看足球以至于常常忘记了他们的功课。)(动名词作宾语) / I think to be a children’s doctor is very rewarding.(我认为当个儿童医生是很值得的。)(从句作宾语)
(2) 只有及物动词或介词才有宾语,不及物动词没有宾语,如果涉及到事物,则必须在不及物动词后面加合适的介词。Listen to the radio. (listen不是及物动词,故加to。) / Can you hear anything exciting(你能听到什么令人兴奋的消息吗？)
(3) 宾语一般放在及物动词或介词的后面,但是在疑问句中,如果宾语是疑问词,则宾语要放在句首。介词的宾语如果是疑问词,则可以放在介词后或句首。如：What did he see (他看见了什么？) / What does he write a letter with (他用什么写的信？) / With what does he write a letter (他用什么写的信？)
(4)“动词+副词+宾语”结构中,如果宾语是代词,则代词必须放在“动”“副”之间。如：Please put the shoes away. (请把鞋子收起来。) / Please put away the shoes. (请把鞋子收起来。) / Please put them away. (请把它们收起来。) (5) 动词后面跟双宾语时可以采用两种结构：
①动词+间接宾语(人)+直接宾语(物)。如：He often gives me some help. (他常常帮我。) ②动词+直接宾语+介词+间接宾语。注意,一般情况介词用to,但动词是make, buy, borrow时,介词用for.如： Please make me a kite. (请给我做个风筝。)或Please make a kite for me. (6) 在“动词+宾语+宾补”结构中,如果宾语是不定式、动名词、宾语从句,则常用it做形式宾语,而将实际的宾语移到补语后面去。如：I found the job rather difficult. (我发觉这个工作相当难做。) / I found it rather difficult to do the job. 4、表语：
(1) 说明主语的身份、性质、状况等含义的成分,通常由形容词、副词、介词短语、名词、代词等充当。如：He became a doctor after he left high school.(高中毕业他当上了医生。) / The rubber wheels are over there.(橡胶轮子在那边。) / He does not feel like eating anything today because he has caught a bad cold.(他今天不想吃任何东西因为他得了重感冒。) / Who is it(谁呀？)
(2) 表语只能放在连系动词(如：be,look,become,turn get,grow,feel,seem) 之后,对表语进行提问的句子除外。
(3) 代词做表语一般用主格,口语中常用宾。如：It’s I. (It’s me.)是我。
(4) 只能作表语的形容词有：sorry,afraid,alone,asleep,awake,ill,well,sure,interested等等。He was terribly sorry for his carelessness.(他很为他的粗心而歉疚。) / Please make no noise here; the baby is asleep.(请不要发出响动,婴儿正熟睡呢。) / I am only interested in sitting in a boat and doing nothing at all!(我只是对独坐孤舟无所事事感兴趣。) / I am not alone in thinking so.(并非只有我才这样想的。) 5、定语：
(1) 修饰名词或代词的成分,常由形容词、名词(含所有格)、代词(物主、指示、疑问、不定)、介词短语、不定式(短语)充当,在初三阶段还学习了定语从句做定语的知识。如：Put it in the top drawer.(把它放在最上层的抽屉里。) / France and Switzerland are European countries. (法国和瑞士是欧洲国家。) / His mother and father are both college teachers.(他的父母都是大学教师。) / This is the day that I can never forget in my life.(这是我一辈子难忘的日子。)
(2) 单词做定语时一般放在被修饰的名词前面,而且有一定的次序： 冠词/ a, the 物代 my, his 年龄/形状/ old, young 大小/温度 small 色彩 red, yellow 来源 Chinese, English 质地/材料 silk, paper,wooden 目的/用途 reading, improve 被修饰的名词(中心词) room, friend,car
例子：这是一辆很大的红色的中国的古老轿车。
(3) 时间副词(now,then,today,yesterday,...)、地点副词(here,there,back,in,out,home,...作定语时放在被修饰的名词后面。如：I could not find my way out, so I stayed there all along. (我找不到出去的路,所以就一直呆在那儿。)
(4) 介词短语修饰名词时只能放在名词的后面：The monkey in the cage was caught yesterday. (笼子里的猴子是昨天逮着的。)
(5) 形容词修饰复合不定代词时,往往后置。如：He remembered everything unusual. (他记得所有不寻常的事情。)
(6) 注意：由于定语属于修饰性的成分,因此它常归入主语、宾语、表语之中,不作为句子的主要成分。 6、状语：
(1) 说明动作“何时”、“何地”、“如何”发生,或者说明形容词或副词的程度,一般由副词、介词短语、不定式、状语从句等充当。如：I was not born yesterday.（我又不是昨天才出世的娃娃。）/ For many of these families a college education was something new.（对其中的许多家庭来说,大学教育是件新事物。）/ He woke up to find his house on fire.(他醒来发现房子着火了。) / You cannot leave until your work is finished.(在你的工作被完成以前你不能离开)
(2) 副词作状语位置较为灵活;介词短语作状语,位置基本固定；不定式作状语,一般表示目的、结果；从句作状语.
专升本考试英语语法总结
