英语语法体系

主语是we这个没问题了吧。谓语是need，需要toknow不定式做need的宾语而whatothersaredoing这个句子（宾语从句）又做了宾语中的know的宾语。呵呵，是不是有点儿晕？为什么宾语后面还会冒出来了另一个句子做宾语呢？在这里多说几句在英语里，一个句子一般只能有一个谓语动词（连动式除外，这个句子显然不是连动式），但是，有的时候会出现这样的情况，一个动词的宾语偏偏也是一个动作，需要一个动词来完成句子，比如像你这个句子，我们需要什么呢？需要“知道”，知道也是一个动作，可是一个句子又只能有一个谓语动词，这怎么办呢？于是我们在第二个动词（也就是知道）的前面加点小东西，让它变成一个类名词的结构来做宾语（我们知道，动词是不能给另一个动词做宾语的），于是，我们在know前面加上了to变成了toknow(也就是传说中的不定式).这个时候，toknow在语法上就具有了名词的功能（有类似功能的还有动名词，即动词后加ing,不过在need这个词后，有固定的用法只能跟不定式做宾语），但是，我们知道，know的前面虽然加了个小东东，但它本身还是有动词的属性的哦.所以，在这里，know的变身其实并不彻底，它在to的掩护下同时具备了名词和动词的两个功能，作为名词，它做了need的宾语，可是做为动词的那一部分属性让它可以在后面再接宾语，于是，就出现了句子中的whatothersaredoing这个句子做know的宾语从句的情况。嘿嘿，说了一堆，也不知道你听懂没有。不过，我给我学生这么讲，他们都表示可以接受。

英语语法体系表语法网络图一．名词I. 名词的种类：专有名词普通名词国名地名人名，团体机构名称可数名词不可数名词个体名词集体名词抽象名词物质名词II. 名词的数：1. 规则名词的复数形式：名词的复数形式，一般在单数形式后面加-s或-es。现将构成方法与读音规则列表如下：规则例词1一般情况在词尾加-smap-maps, sea-seas, girl-girls, day-days2以s, x, ch, sh结尾的名词后加-esclass-classes, box-boxes, watch-watches, dish-dishes3以-f或-fe结尾的词变-f和-fe为v再加-esleaf-leaves, thief-thieves, knife-knives, loaf-loaves, wife-wives加-sbelief-beliefs, chief-chiefs, proof-proofs, roof-roofs, gulf-gulfs4以辅音字母加y结尾的名词，变y为i加-esparty-parties, family-families, story-stories, city-cities5以元音字母加y结尾的名词，或专有名词以y结尾的，加-stoy-toys, boy-boys, day-days, ray-rays, Henry-Henrys6以辅音字母加-o结尾的名词一般加-eshero-heroes, Negro-Negroes, potato-potatoes, tomato-tomatoes不少外来词加-spiano-pianos, photo-photos, auto-autos, kilo-kilos, solo-solos两者皆可zero-zeros/zeroes, volcano-volcanoes/ volcanos7以元音字母加-o结尾的名词加-sradio-radios, bamboo-bamboos, zoo-zoos8以-th结尾的名词加-struth-truths, mouth-mouths, month-months, path-paths,2. 不规则名词复数：英语里有些名词的复数形式是不规则的，现归纳如下：规则例词1改变名词中的元音字母或其他形式man-men, woman-women, foot-feet, goose-geese, mouse-mice2单复数相同sheep, deer, series, means, works, fish, species li, yuan, jin,3只有复数形式ashes, trousers, clothes, thanks, goods, glasses, compasses, contents4一些集体名词总是用作复数people, police, cattle, staff5部分集体名词既可以作单数（整体）也可以作复数（成员）audience, class, family, crowd, couple, group, committee, government, population, crew, team, public, enemy, party6复数形式表示特别含义customs(海关), forces(军队), times(时代), spirits(情绪), drinks(饮料), sands(沙滩), papers(文件报纸), manners(礼貌), looks(外表), brains(头脑智力), greens(青菜), ruins(废墟)7表示“某国人”加-sAmericans, Australians, Germans, Greeks, Swedes, Europeans单复数同形Swiss, Portuguese, Chinese, Japanese以-man或-woman结尾的改为-men,-womenEnglishmen, Frenchwomen8合成名词将主体名词变为复数sons-in-law, lookers-on, passers-by, story-tellers, boy friends无主体名词时将最后一部分变为复数grown-ups, housewives, stopwatches将两部分变为复数women singers, men servantsIII. 名词的所有格：名词在句中表示所有关系的语法形式叫做名词所有格。所有格分两种：一是名词词尾加’s构成，二是由介词of加名词构成。前者多表示有生命的东西，后者多表示无生命的东西。1. ’s所有格的构成：单数名词在末尾加’sthe boy’s father, Jack’s book, her son-in-law’s photo,复数名词一般在末尾加’the teachers’ room, the twins’ mother,不规则复数名词后加’sthe children’s toys, women’s rights,以s结尾的人名所有格加’s或者’Dickens’ novels, Charles’s job, the Smiths’ house表示各自的所有关系时,各名词末尾均须加’sJapan’s and America’s problems, Jane’s and Mary’s bikes表示共有的所有关系时在最后一词末加’sJapan and America’s problems, Jane and Mary’s father表示＂某人家＂＂店铺＂，所有格后名词省略the doctor’s, the barber’s, the tailor’s, my uncle’s2. ’s所有格的用法：１表示时间today’s newspaper, five weeks’ holiday2表示自然现象the earth’s atmosphere, the tree’s branches3表示国家城市等地方的名词the country’s plan, the world’s population, China’s industry4表示工作群体the ship’s crew, majority’s view, the team’s victory5表示度量衡及价值a mile’s journey, five dollars’ worth of apples6与人类活动有特殊关系的名词the life’s time, the play’s plot7某些固定词组a bird’s eye view, a stone’s throw, at one’s wit’s end(不知所措)3. of所有格的用法：用于无生命的东西：the legs of the chair, the cover of the book用于有生命的东西，尤其是有较长定语时：the classrooms of the first-year students用于名词化的词：the struggle of the oppressed?二．冠词冠词分为不定冠词（a, an），定冠词（the），和零冠词。I. 不定冠词的用法：1指一类人或事，相当于a kind ofA plane is a machine that can fly.2第一次提及某人某物，非特指A boy is waiting for you.3表示“每一”相当于every，oneWe study eight hours a day.4表示“相同”相当于the sameWe are nearly of an age.5用于人名前，表示不认识此人或与某名人有类似性质的人或事A Mr. Smith came to visit you when you were outThat boy is rather a Lei Feng.6用于固定词组中A couple of, a bit, once upon a time, in a hurry, have a walk, many a time7用于quite, rather, many, half, what, such之后This room is rather a big one.8用于so(as, too, how)+形容词之后She is as clever a girl as you can wish to meet.II. 定冠词的用法：1表示某一类人或物The horse is a useful animal.2用于世上独一无二的事物名词前the universe, the moon, the Pacific Ocean3表示说话双方都了解的或上文提到过的人或事Would you mind opening the door?4用于乐器前面play the violin, play the guitar5用于形容词和分词前表示一类人the reach, the living, the wounded6表示“一家人”或“夫妇”the Greens, the Wangs7用于序数词和形容词副词比较级最高级前He is the taller of the two children.8用于国家党派等以及江河湖海，山川群岛的名词前the United States, the Communist Party of China, the French9用于表示发明物的单数名词前The compass was invented in China.10在逢十的复数数词之前，指世纪的某个年代in the 1990’s11用于表示单位的名词前I hired the car by the hour.12用于方位名词，身体部位名词，及表示时间的词组前He patted me on the shoulder.III. 零冠词的用法：1专有名词，物质名词，抽象名词，人名地名等名词前Beijing University, Jack, China, love, air2名词前有this, my, whose, some, no, each, every等限制I want this book, not that one. / Whose purse is this?3季节，月份，星期，节假日，一日三餐前March, Sunday, National Day, spring4表示职位，身份，头衔的名词前Lincoln was made President of America.5学科，语言，球类，棋类名词前He likes playing football/chess.6与by连用表示交通工具的名词前by train, by air, by land7以and连接的两个相对的名词并用时husband and wife, knife and fork, day and night8表示泛指的复数名词前Horses are useful animals.三．代词：I. 代词可以分为以下七大类：1人称代词主格I, you, he, she, it, we, you, they宾格me, you, him, her, it, us, you, them2物主代词形容词性my, your, his, her, its, our, their名词性mine, yours, his, hers, its, ours, theirs3反身代词myself, yourself, himself, herself, itself, ourselves, yourselves, themselves4指示代词this, that, these, those, such, some5疑问代词who, whom, whose, which, what, whoever, whichever, whatever6关系代词that, which, who, whom, whose, as7不定代词one/ some/ any, each/ every, none/ no, many/ much, few/ little/ a few/ a little,other/ another, all/ both, neither/ eitherII. 不定代词用法注意点：1. one, some与any:1) one可以泛指任何人，也可特指，复数为ones。some多用于肯定句，any多用于疑问句和否定句。One should learn to think of others.Have you any bookmarks? No, I don’t have any bookmarks.I have some questions to ask.2) some可用于疑问句中，表示盼望得到肯定的答复，或者表示建议，请求等。Would you like some bananas? Could you give me some money?3) some 和any修饰可数名词单数时，some表示某个，any表示任何一个。I have read this article in some magazine. Please correct the mistakes, if any.4) some和数词连用表示“大约”，any可与比较级连用表示程度。There are some 3,000 students in this school. Do you feel any better today?2. each和every:each强调个别，代表的数可以是两个或两个以上，而every强调整体，所指的数必须是三个或三个以上。Each student has a pocket dictionary. / Each (of us) has a dictionary. / We each have a dictionary.Every student has strong and weak points. / Every one of us has strong and weak points.3. none和no：no等于not any，作定语。none作主语或宾语，代替不可数名词，谓语用单数，代替可数名词，谓语单复数皆可以。There is no water in the bottle.How much water is there in the bottle? None.None of the students are (is) afraid of difficulties.4. other和another: 1) other泛指“另外的，别的”常与其他词连用，如：the other day, every other week, some other reason, no other way,the other特指两者中的另外一个，复数为the others。如：He held a book in one hand and his notes in the other.Two students in our class failed, but all the others passed the exam. 2) another指“又一个，另一个”无所指，复数形式是others，泛指“别的人或事”如：I don’t like this shirt, please show me another (one). The trousers are too long, please give me another pair / some others.Some like football, while others like basketball.5. all和both, neither和either all表示不可数名词时，其谓语动词用单数。both和all加否定词表示部分否定，全部否定用neither和none. All of the books are not written in English. / Not all of the books are written in English. Both of us are not teachers. / Not both of us are teachers. / Either of us is a teacher.四．形容词和副词I. 形容词：1. 形容词的位置：1) 形容词作定语通常前置，但在下列情况后置：1修饰some, any, every, no和body, thing, one等构成的复合不定代词时nobody absent, everything possible2以-able, -ible结尾的形容词可置于有最高级或only修饰的名词之后the best book available, the only solution possible3alive, alike, awake, aware, asleep等可以后置the only person awake4和空间、时间、单位连用时a bridge 50 meters long5成对的形容词可以后置a huge room simple and beautiful6形容词短语一般后置a man difficult to get on with2) 多个形容词修饰同一个名词的顺序：代词数词性状形容词冠词前的形容词冠词指示代词不定代词代词所有格序数词基数词性质状态大小长短形状新旧温度颜色国籍产地材料质地名词allbothsuchtheathisanotheryoursecondnextonefourbeautifulgoodpoorlargeshortsquarenewcoolblackyellowChineseLondonsilkstone3) 复合形容词的构成：1形容词+名词+edkind-hearted6名词+形容词world-famous2形容词+形容词dark-blue7名词+现在分词peace-loving3形容词+现在分词ordinary-looking8名词+过去分词snow-covered4副词+现在分词hard-working9数词+名词+edthree-egged5副词+过去分词newly-built10数词+名词twenty-yearII. 副词副词的分类：1时间副词soon, now, early, finally, once, recently5频度副词always, often, frequently, seldom, never2地点副词here, nearby, outside, upwards, above6疑问副词how, where, when, why3方式副词hard, well, fast, slowly, excitedly, really7连接副词how, when, where, why, whether, however, meanwhile4程度副词almost, nearly, very, fairly, quite, rather8关系副词when, where, whyIII. 形容词和副词比较等级：形容词和副词的比较等级分为原级，比较级和最高级。比较级和最高级的构成一般是在形容词和副词后加-er和-est，多音节和一些双音节词前加more 和most。1. 同级比较时常常用 as…as…以及not so(as)…as…如：I am not so good a player as you are.2. 可以修饰比较级的词有：much, many, a lot, even, far, a bit, a little, still, yet, by far, any, a great deal。3. 表示一方随另一方变化时用“the more…the more…”句型。如：The harder you work, the more progress you will make.4. 用比较级来表达最高级的意思。如：I have never spent a more worrying day.5. 表示倍数的比较级有如下几种句型：Our school is three times larger than yours./Our school is four times as large as yours./Our school is four times the size of yours.6. 表示“最高程度“的形容词没有最高级和比较级。如：favourite, excellent, extreme, perfect。

英语语法在线教程（全） 名词 冠词和数词 代词 形容词和副词 动词 动名词 动词不定式 特殊词精讲 分词 独立主格 动词的时态 动词的语态 句子的种类 倒装 主谓一致 虚拟语气 名词性从句 定语从句 状语从句 连词 情态动词26