初中英语数词笔记

一、词类、句子成分和构词法：1、词类：英语词类分十种：名词、形容词、代词、数词、冠词、动词、副词、介词、连词、感叹词。1、名词(n.)： 表示人、事物、地点或抽象概念的名称。如：boy, morning, bag, ball, class, orange.2、代词(pron.)： 主要用来代替名词。如：who, she, you, it .3、形容词(adj..)：表示人或事物的性质或特征。如：good, right, white, orange . 4、数词(num.)： 表示数目或事物的顺序。如：one, two, three, first, second, third, fourth.5、动词(v.)： 表示动作或状态。如：am, is,are,have,see .6、副词(adv.)： 修饰动词、形容词或其他副词,说明时间、地点、程度等。如：now, very, here, often, quietly, slowly.7、冠词(art..)：用在名词前,帮助说明名词。如：a, an, the.8、介词(prep.)： 表示它后面的名词或代词与其他句子成分的关系。如in, on, from, above, behind.9、连词(conj.)： 用来连接词、短语或句子。如and, but, before .10、感叹词(interj..)表示喜、怒、哀、乐等感情。如：oh, well, hi, hello.2、句子成分：英语句子成分分为七种：主语、谓语、宾语、定语、状语、表语、宾语补足语。一位朋友)4、名词或代词作主语时和谓语之间的单复数的一致问题：1、谓语和谓语基本保持单复数的一致,即：主语是可数名词单数或不可数名词时,谓语动词用单数形式：如：The computer was a great invention.(计算机是个了不起的发明)The water in the glass is very cold.(玻璃杯里的水很冷)2、集体名词(如family, class, team, group, row, police, school等)做句子主语时,① 如果表示整体概念,则谓语用单数形式,如：Class Three is a very good class.(三班是好班)② 如果表示其中的所有成员时,则谓语用复数形式,如：Class Three have a map of China.(三 班有张中国地图)3、Chinese, Japanese, fish, sheep, people等表示单个时谓语用单数,表示许多时,谓语用复数。如：There is a sheep in the yard.(院子里有只绵羊) / There are some sheep in the yard.(院子里有一些绵羊)4、maths, news等虽然有s结尾,但不是复数,因此谓语仍用单数：The news is very exciting. (这个消息令人兴奋)5、glasses, shoes, socks, trousers, gloves等名词往往用复数形式,故谓语用复数。如：The trousers are very cheap and I want to take them.(裤子很便宜,我想买)6、a lot of 后跟名词复数时谓语用复数形式,跟不可数名词时谓语用单数形式。如：A lot of students are playing baseball now.(现在有许多学生在打垒球) A lot of time was wasted on that work.(大量的时间花在了那个工作上)(被动句)7、and 连接两个名词做主语时,谓语原则上用复数,但是两个名词若构成一个整体事物时,谓语则用单数。如：The teacher and his son are picking apples now.(老师和他的儿子在摘苹果) / Fish and chips is very famous food. (鱼和薯条是一种出名的食品)8、 there be 句型中be的单复数一般由靠近的名词决定。如：There is a table and four chairs in the room.(房间里有一张桌子和四张椅子)9、用both…and…连接两个事物做主语时,谓语一般用复数。如：Both you and I are required to be here tomorrow.(你和我明天要求都来)10、主语中含有with的短语时,谓语单复数由with之前的人物决定。如：A woman with a 7-year-old child was standing at the side of the road. (一名妇女带着一个七岁的孩子(当时)就站在路边)11、either…or…或者 neither…nor…连接两个人物做句子主语时,谓语采用就近原则。如：Either you or he is right.(要么是你对,要么是他对。/你和他有一个人是对的) / Neither you nor I am going there.(你和我都不打算去那里) 12、表示一段时间或长度概念的复数名词做主语时,谓语一般用单数。如：Two months is not a short time.(两个月不是个短时间)Two thousand kilometers is quite a long distance(距离).(两千千米是相当长的一段距离)13、主语中含有half of… / (three quarters)of… / all (of) the ….等词语时,谓语的单复数由名词确定,如：Over three quarters of the information on the Internet is in English.(因特网上四分之三以上的信息是用英语写的) / A third of the students were playing near the lake.(学生的三分之一(当时)正在湖边玩耍) / All of the water in these rivers has been polluted.(这些河流中的水已经被污染了)(被动句) 但是,population一词又有特殊情况： What’s the population of China?(中国人口是多少？)(句子用单数) / Three quarters of the population in this city are Arabs(阿拉伯人).(这个城市四分之三的人口是阿拉伯人)(句子用复数)5、部分名词用法辨析：1、sport、game、match、race 的区别：sport通常指“户外运动”,以锻炼为主,概念较大；game意思是“运动、比赛”,不管户内户外还是脑力体力,指以胜负为主的运动；match意为“竞赛、比赛”,多指正式比赛；race主要表示“赛跑、赛马、赛车”。如：People all around the world enjoy sports.(全世界的人都喜爱运动) / The 2008 Olympic Games will be held in Beijing.(2008奥运会将在北京举行)(被动句) / Our school football team won the league match(联赛).(我们学校足球队取得了联赛冠军) / They were strong and won the boat race.(汤他们很棒,赢得了划艇比赛) 2、festival、holiday、vacation的区别：festival“节日”,指喜庆的日子或持续一段时间的文娱活动；holiday(假日、休息日),指法定假日或风俗习惯,复数可以表示一个较长的假期；vacation“假期”,指学习或工作中一段长时间的休息。如：The Shanghai Television Festival will be held next month.(上海电视节将在下个月举行) / Sunday is a holiday and most people do not work.(星期天是个假日,多数人不工作) / What are you going to do during the summer vacation/holidays?(在暑期你打算做什么事情？)3、journey、tour、trip、travel的区别：journey指在陆地上(或海上或空中)进行的长途旅行,不知终点,含有辛苦的意思；tour指途中作短期逗留的巡回旅行,强调游览多处,常用来指观光等；trip通常指往返定时的短途旅行,如出差度假等；travel多指长期或长途的观光旅行,尤其指到国外,没有明确目的地,也作不可数名词,指旅行这一行为。如：He made up his mind to make the journey to Dunhuang.(他拿定主意要去敦煌旅行)/ He has gone on a walking tour.(他步行观光去了) / He took several trips to Shanghai last yeaar.(去年他去了上海好几次) / Did you go to Santiago(圣地亚哥) during your travels?(旅行期间你去圣地亚哥了吗？) / Travelling through thick forests is dangerous.(在密林里边穿行是很危险的) 4、sound、noise、voice的区别：sound指各种声音；noise主要指“噪音”；voice指人的“嗓音”。如：The noise of the street kept me awake in the night.(街上的喧嚣声让我彻夜难眠) / All of a sudden there was the sound of shots and a cry.(突然间传来几声枪响和一声尖叫) / The singer has lost her ringing voice as a result of a bad cold.(因为感冒的缘故,这个歌唱家失去了她银铃般的嗓音) 5、fish的问题：指许多条鱼且不管种类时,用fish,单复数相同；fishes 指许多种类的鱼；fish指“鱼肉”时是不可数名词。如：There are many kinds of fishes in the pool. (池子里有很多种类的鱼)/ I prefer fish to meat.(与肉相比我更喜欢鱼)1、形容词性物主代词只能作句子中名词的修饰语,后面要跟名词。如：Is that your umbrella?(那是你的伞吗？) / I often go to see my aunt on Sundays.(我经常在星期天去看望阿姨) / They are their books.(是他们的书)2、名词性物主代词相当于名词,既代替事物又表明所属关系,在句子中往往独立地作主语、宾语或者表语,后面千万不可以跟名词。如：This is your cup,but where is mine?(这是你的杯子,可我的在哪儿？) / Your classroom is very big, but ours is rather small.(你们的教室很大,我们的相当小)3、“of + 名词性物主代词”称为双重所有格,作定语时放在名词的后面。如：A friend of mine came to see me yesterday.(我的一个朋友昨天来看我了) (指若干朋友中有一个来看我。)[试比较] My friend came to see me yesterday.(我的朋友昨天来看我了)(指我的那个特定的朋友来看我。)4、反身代词：表示谓语的动作与主语有关或者宾语补足语的动作与宾语有关。第一人称单数 第二人称单数 第三人称单数 第一人称复数 第二人称复数 第三人称复数 阳性 阴性 中性 myself(我自己) yourself(你自己) himself(他自己) herself(她自己) itself(它自己) ourselves(我们自己) yourselves(你们自己) themselves (他们/她们/它们自己)1、反身代词在句子中作宾语表示反射(指一个动作回到该动作执行者本身)。如：Don’t play with the knife, you might hurt yourself.(不要玩刀子,那会割伤你的)2、在句子中作同位语表示强调(即用来强调名词或代词的语气)。如：The story itself is good. Only he didn’t tell it well.(故事本身是好的,只是他没有讲好)6、 指示代词： 指示说明近处或者远处、上文或者下文、以前或者现在的人或事物。单数 复数 含义this(这个) these(这些) 指较近的人和物that(那个) those(那些) 指较远的人和物such (这样的人/物) 指上文提过的人和物same (同样的人/物) 指和上文提过的相同的人和物it (这人/这物) 指不太清楚是谁或者是什么时指示代词既可以单独使用做句子的主语、宾语或表语,也可以作定语修饰名词。如：What’s this?(这是什么？) / That model plane is made of plastic.(那只模型飞机是塑料做的)(被动句) / Remember never to do such things.(记得永远不要做这样的事情) / Do the same as the teacher tells you. (按老师说的做)/ ---Who is it?(是谁？) ---It’s me!(是我！)6、关系代词：用来引导定语从句的代词叫关系代词,参见后面的定语从句。1、关系代词who 、which、 that 、whom 等,将定语从句和主句连接起来。英语中的关系代词一方面在从句中担任一定的成分,另一方面又起连接作用。 如：The student who is drawing a picture is in Grade One.(正在画画的学生是一年级的)2、关系代词who / whom指人,如果作从句的宾语,则有时省略。如：Do you know the man who is wearing a red hat? (你认识那个戴着红帽子的男人吗？)3、关系代词which 指物,如果作从句的宾语,则有时省略。如：Have you found the book which you lost several days ago?(你找到几天前丢失的那本书了吗？)4、关系代词that既可指人也可指物,如果作从句的宾语,则有时省略。如：Can you see the man/dog that is running along the river bank ?(你看得见顺着河跑的男人/狗了吗？)主动句： 主语(人/物) + 谓语(及物动词) + 宾语(人/物) + 其他 + 状语 (动作的执行者) (各种时态形式) (动作的承受者) 被动句： 主语(人/物) + 谓语(及物动词) + by +人 / 物 + 其他 + 状语 (动作的承受者) (be +过去分词) (动作的执行者) (3) 注意点：①“动词+间接宾语+直接宾语”改为被动时,可以用间接宾语做被动句的主语。如： His teacher gave him a dictionary.→He was given a dictionary by his teacher.(老师给他一本字典→他得到老师一本字典)也可以用直接宾语做被动句的主语,但是需用to或者for引出原句的间接宾语。如：His teacher gave him a dictionary.→A dictionary was given to him by his teacher.(老师给他一本字典→一本字典由老师送给了他)/His father made him a kite.→A kite was made for him by his father.(他的父亲给他做了一个风筝→一个风筝由他的父亲做给了他)②“动词+宾语+动词原形”改为被动时,动词原形前要加to.如：The boss made the poor man work 12 hours a day.→The poor man was made to work 12 hours a day.(老板让这个可怜的人一天工作12小时→这个可怜人被迫一天工作12小时)③“动词+…+介词”改为被动时,介词一般在原位不动。如：The girl takes good care of her little brother.→The girl’s little brother is taken good care of by her.(女孩照顾小弟弟→女孩的小弟弟由她照顾着)④“be+过去分词”未必表示被动语态,而可能是系表结构。如：He is pleased / worried / tired /…….(系表)(他高兴/焦虑/疲劳……) He was hit / knocked down / told / shot / …….(被动)(他被击中/撞倒/关照/射中……)7、动词的非谓语形式：动词不做谓语时的固定形式。(1)动词的非谓语形式包括动词不定式、动名词和分词三种形式；其中分词又包含现在分词和过去分词两种形式。它们在句子中不能单独作谓语。(2)动词不定式：① 形式：动词不定式基本形式由“不定式记号to+动词原形”构成。它的否定形式只要在“to” 前面加上“not”。它的疑问形式是：“wh-疑问词+to+动词原形”。*它的被动形式：“to be +过去分词”。*它的完成形式：“to have +过去分词”。② 动词不定式具有名词、形容词和副词的特征,即可以在句子中作主语、宾语、定语、状语、表语和宾语补足语。但不定式也保留动词的某些特征,即不定式后面可以跟宾语、表语和状语。动词不定式加上相关成分就构成不定式短语。③ 动词不定式可以放在谓语前句子作主语。但是通常将作主语的动词不定式或不定式短语放在谓语后面,而在主语位置用“it”作形式主语(有时在不定式的前面还会用for sb.表示不定式的逻辑主语)。如：To help animals is helping people.(帮助动物就是帮助人)/ It is very difficult (for us) to learn Chinese well.((对于我们而言)学好汉语是非常的困难)/ It took me half an hour to work out this problem.(解出这道题花了我一个小时的时间)④ 动词不定式可以作谓语动词(及物动词)的宾语。[A] 及物动词+不定式一般形式：谓语动词(vt.) +不定式(作宾语) [说 明]want(想) / try(试图) / decide(决定) / would like(想要) / hope(希望) / love(喜爱) / learn(学会) / afford(提供) / agree(同意) / fail(失败、未能) / mean(意味着) / prefer(宁愿) / wish(希望) + to (do) (无)help(帮助) to可以省略begin(开始)/ start(开始)/hate(憎恨) 也可跟动名词,意义变化不大forget(忘记) / remember(记得)/ like(总爱) 也可跟动名词,意义变化较大 如：I would like to have a rest at the moment.(我现在想休息一下)/ They began to search the room for the thief.(他们开始在屋子里搜寻小偷)/ He liked to have a swim in the pool near his house.(他喜爱在靠家的水塘里面游泳)/ When did you learn to speak English?(你什么时候开始学英语的？)/ Don’t forget to close the door when you leave.(你离开时别忘了关门[比较] He forgot to turn off the light.(他忘了关灯.) (没关)/ He forgot turning off the light.(他忘记关过灯.)(关了) / Please remember to ring me up.(记得给我打电话.)(还没打电话) / I remember calling you yesterday but you forgot.(我记得昨天给你打电话了,但是你忘记了.)(打过电话) [B] 及物动词+疑问词+不定式： 谓语动词(vt.) +wh-疑问词+不定式 (作宾语) [说明]tell (告诉) / show (显示) / know (知道) / ask (问) / find out (发现) / understand (明白) / wonder(疑惑) / learn(学会) / forget(忘记) / remember(记得) / teach sb.(教某人) / discuss(商讨) what where+ how + to (do)whowhich…… 不定式疑问形式还可以作句子的主语、表语等。 如：He does not know which one to take.(他不知道该选哪个)/ Tell me how to get to the station.(告诉我怎么样去火车站)/ She asked me what to do for today’s homework.(她问我今天家庭作业做什么)/ Can you teach me how to search the internet?(你能教我怎样上网吗？) [C] 不定式作宾语而后面又有宾语补足语时,通常用it代替作形式宾语,而不定式则后置。如： I found it not very easy to learn to ride a bike.(我发现学骑车不很容易)⑤ 动词不定式可以在句子中用作定语,放在名词或代词后面。[A] 记住下面的一些结构：被修饰部分 + 不定式(作后置定语) 汉 语 意 思a key to lock the door 锁门的钥匙 a box to hold these things 装这些东西的箱子give her a book to read 给她一本书读Is there any (+名词/代词) to (do)? 有…要(做的)吗?It’s time to go. 是走的时间了。/ 该走了。Do you have any work to do? 你有工作要做吗?I’d like something to eat. 我要点儿吃的。I have nothing to say. 我没有话要说。Would you like something to drink? 你要点儿喝的吗？[B] 在这种情况下,如果不定式动词是不及物动词,则后面必须加介词。如：They could not find a place to live in.(他们找不到住的地方)/ Please give me a chair to sit on.(请给我一张椅子坐坐)/ He has got a writing brush to write with.((他找到了写字的毛笔)⑥ 动词不定式可以在句子中用作状语,有下列几种情况：[A] 放在不及物动词(come, go, stop, finish, wait等词)的后面。如：He came to see her yesterday.(他昨天来看望她)(表示来的目的)/ I stopped to have a rest.(我停下来休息一会儿)(表示停下来的目的)[B] 放在完整的谓语之后(即“谓语+宾语”、“谓语+宾语+补语”、“动词+表语”之后)。如：We cleaned the room to let him play in it.(我们打扫了房间以便让他在里面玩)/ I opened the window to see more clearly.(我打开窗子以便看得更清楚点儿)[C] 有时表示目的的不定式短语可以放在句首。如：To arrive there on time,I got up one hour earlier than usual.(为了按时到达,我们比平时早起了一个小时)(表示早起的目的)[注意] stop to do 与stop doing的不同。如：They stopped to have a look.(他们停下来看看)(不定式作“停下来”的目的状语)/ They stopped looking out of the window and began to listen to the teahcher.(他们停止向窗外望,开始听老师讲课)(动名词作宾语,表示“停止”的内容)⑦ 动词不定式可以在句子中用作表语,限用于连系动词之后。如：My job is to keep the goal.(我的工作就是守住球门)⑧ 动词不定式可以在句子中用作复合宾语中的宾语补足语。 谓 语 动 词(vt.) + 宾语 (人 / 物) +不定式 (作宾语补足语)ask(请) / tell(关照) / teach(教) / want(想要) / would like(想要) / get(让) / help(帮) / invite(邀请) / like(喜欢) / warn(警告) / +sb. / sth. +to (do)make(使得) / let(让) / hear(听) / see(看) / feel(感觉) / watch(观看)/ have(使得) / help(帮助) +sb. / sth. + (do) 如：Mum asked me to help her with the cooking.(妈妈叫我帮助她做饭)/ I would like you to see my parents.(我想要你见见我的父母)/ The boss often made the workers work 14 hours a day.(老板常让工人们一天工作14小时)/ Now let me hear you play the violin.(现在让我来听你拉小提琴) [注意] help之后做宾补的不定式符号to可以省略；hear / see / feel / watch之后的宾补用不定式与现在分词时,含义不同,需特别注意,(参见现在分词部分)。试比较： I heard her crying when I walked past.(我路过时听到她正在哭)(指当时瞬间的情况) I sat near her and heard her sing the new song.(我坐在她附近听她唱新歌)(指整个过程) (3)动名词① 动名词由动词原形加词尾“ing”构成。动名词有动词的特征,可以跟宾语,可以被状语修饰；它也有名词的特征,在句子中可以作主语、宾语(包括介词宾语)等。动名词加相关词语(宾语或状语等)构成动名词短语。② 动名词可以作主语。一般可用it作形式主语而将动名词短语后移。如：Learning English all by yourself is not so easy.(自学好英语不那么容易)(=It is not so easy learning English all by yourself.)③ 动名词可以作宾语。[A] want / need之后用动名词时,含有被动意思。如：Your car needs reparing badly.(你的车急需修理。)(被修)My hair needs cutting.(我要理发。)(头发被理)(4)分词： 包含现在分词和过去分词。(高中学习重点)① 主要区别：现在分词一般有主动的意思或表示动作正在进行的意思；过去分词有被动或动 作已经完成的意思。分词可以有自己的宾语或状语。② 分词或分词短语在句子中作定语、状语和复合宾语等。[A] 作定语：分词作定语时,一般要放在修饰的名词之前,分词短语作定语时,则要放在所修饰的名词之后。 如：I have got a running nose.(我流鼻涕) / The woman running after the thief shouted very loudly,“Stop the thief!”(跟着小偷追的妇女大喊：捉小偷！) / Yesterday I met a man called Mr. Black.(昨天我遇见了一个名叫布莱克先生的人)/ He only gave me a broken glass,so I was very angry with him.(他只给了我一个坏玻璃杯,所以我很生他的气)[B] 现在分词可以作下列动词的宾语补足语。(参考不定式作宾语补足语)谓语动词(vt.) 宾语 宾语补足语keep(保持) / see(看到) / hear(听到) / watch(注意到) / feel(感觉到) sb./sth. (do)ing 如：Mum kept me working all the week.(妈妈让我一个星期都在工作)/ When I entered the room,I saw Jack eating a big pear.(我进入房间时看到杰克正在吃一只大梨子)/ In the dark I felt something very cold moving on my foot.(黑暗之中我感到有个冷的东西在我的脚上移动)[C] 现在分词可以作状语,表示伴随情况。如：She came into the classroom,holding a pile of papers in her hand.(他走进教室,手上抓着一沓纸)/ I am very busy these days getting ready for the coming oral test.(这些日子我正忙着准备即将来到的口语考试)[D] 过去分词可以作表语,放在连系动词后面,但要注意不要与被动语态混淆,“主系表”主要表示状态,而被动语态则表示动作。常用过去分词作表语的结构有：be worried (焦虑) / be pleased (高兴) / be tired (疲劳) / get dressed (打扮好) / get lost (迷路) / get caught (遭遇) / beome frustrated (沮丧) / become intereted in (对…感兴趣)等等。例略。 [E] 过去分词可以作宾语补足语。如：I had my hair cut this morning.(今天早上我让人给我理了发)(注意：have sth. done表示动作由别人来做,而have done sth.则为现在完成时的结构,两个结构不可以混淆)