英语中的数词表示

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英语数词和冠词

英语数词和冠词

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。

数词(num.):表示数目或事物的顺序。

如:one, two, three, first, second, third, fourth.冠词(art..):用在名词前,帮助说明名词。

如:a, an, the.4、数词:基数词,序数词。

英语的数词可以作句子的主语、宾语、表语和定语。

1000→one(a) thousand,10000→ ten thousand,100000→one hundred thousand ,1000000→one million,10000000→ten million, 100000000→one hundred million,108→one hundred and eight, 146→one hundred and forty-six, 500→five hundred , 1001→one thousand and one, 1813→one thousand eight hundred and thirteen.[注]:(1)百位与十位之间要加and;十万位和万位,亿位和千万位之间通常也要加and。

(2) 英语用千、百万等单位计数,大数字从右向左看, 每隔三位划一逗号,倒数第一个逗号之前要用thousand,倒数第二个逗号之前要用million,倒数第三的逗号之前要用billion表示。

(3) hundred、thousand、million作数词时,不用复数,前面可以加上one, two, …等其它数词。

用作名词时复数表示“成…上…”,后面必须要有of,前面可以加上some,many,several等词。

如:five hundred(五百), hundreds of(成百上千的), ten thousand(一万), thousands of(成千上万的), millions of(成百万的)4.2.序数词:表示顺序的数词叫序数词。

英语数词用法详解

英语数词用法详解

英语数词用法详解本文将详细介绍英语中的数词用法。

基本概念在英语中,数词用于表示数量、顺序和分数。

它们可以用来描述事物的数量、排序以及分割等。

基数词与序数词- 基数词用于表示数量或数量的顺序,例如:one(一)、two (二)、three(三)等。

基数词用于表示数量或数量的顺序,例如:one(一)、two(二)、three(三)等。

- 序数词用于表示次序或顺序,例如:first(第一)、second(第二)、third(第三)等。

序数词用于表示次序或顺序,例如:first(第一)、second(第二)、third(第三)等。

基数词的用法基数词可用于以下方式:1. 描述数量:基数词可以直接表示一个具体的数量。

例如:two apples(两个苹果)、three dogs(三只狗)。

2. 描述年龄:基数词可以表示一个人的年龄。

例如:He is twenty years old(他二十岁)。

3. 表示日期:基数词可以表示具体的日期。

例如:It's the 10thof May(是5月10日)。

4. 表示序号:基数词可以用来表示物品或人的顺序。

例如:He is the fourth person in line(他是排队的第四个人)。

序数词的用法序数词可用于以下方式:1. 表示顺序:序数词用来表示事物的顺序。

例如:My birthday is on the 15th(我的生日是在15号)。

2. 表示课程编号:序数词可以用来表示课程的顺序编号。

例如:I am taking English 101(我正在研究英语101)。

3. 表示日期:序数词可以表示日期中的天数。

例如:Today is the 27th of December(今天是12月27日)。

结论本文介绍了英语中基数词和序数词的用法。

希望这份文档能帮助您更好地理解和运用英语数词。

英语数词

英语数词

数词一.基数词:表示数目多少的词1---20 one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty从13开始,就有规律了,在后加teen.(除13和15有变动外),teen 就表示十几。

eg: How many birds can you see?I can see three.二.序数词:表示顺序先后的数词1---20 first、second、third、forth、fifth、sixth、seventh、eighth、ninth、tenth. eleventh、twelfth、thirteenth、fourteenth、fifteenth、sixteenth、seventeentheighteenth、nineteenth、twentiethEg:She was the third to arrive.她是第三个到的。

三.日期的表示方法用英语表示日期,其顺序是月+日+年,日和年之间用逗号隔开。

如:2001年4月2日应该写成:April 2nd, 2001,或者Apr. 2nd, 2001 英语日期前介词的使用:若指在哪一年或哪一月,则用in,若具体到某一天,则用介词on四.英语时间通常用以下两种方法表达:1. 直接表达法A. 用基数词 + o'clock来表示整点,注意o'clock须用单数,可以省略。

如:eight o'clock 八点钟,ten (o'clock) 十点钟B. 用基数词按钟点 + 分钟的顺序直接写出时间。

如:eleven-o-five 十一点过五分, six forty六点四十2. 间接表达法A. 如果分钟数少于30分钟,可用分钟 + past + 钟点表示,其中past 是介词,意思是“过”。

英语中的数词有两类

英语中的数词有两类

英语中的数词有两类:基数词和序数词。

基数词表示数目的词,与中文中的“一、二、三”一致;序数词是表示顺序的词,与中文中的“第一、第二、第三”等一致。

基数词英语中最基本的基数词如下,其他数词都可以由这些词构成:1. 基数词1—12 : 死记硬背这十二个数词例:one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve2. 13—19: 个位数+teen 例:14: fourteen (除thirteen, fifteen ,eighteen )3. 整十位数:个位数+ty 例:60:sixty (除twenty, thirty, forty ,fifty, eighty)4. 复合基数词:整十位数+个位数twenty-one (两个词之间有连接号)5. 百位数:数词+hundred +and+整十位数+个位数+复数名词例:One hundred and fifty-five days6. 千位数:数词thousand +数词hundred ++and+整十位数+个位数+复数名词7. 百万数:用million表示,例:10 million8. 亿: 用“hundred million”表示, 例:five hundred million9. 十亿: 用“billion”表示, 例:ten billion* 注意:1. 如果数词里有零,用“and ”表示,例:三百零三;three hundred and three2. 百位数与十位数之间有"and”; 十位数与个位数之间有“-”;千位数与百位数之间没有任何修饰词。

3. 注意一些词组:hundreds of; thousands of; millions of; billions of序数词构成1. 与基数词完全不同形(1-3):first; second; third2. 在基数词后+th (4-12):fourth;sixth;seventh; tenth ( fifth, eighth; ninth ,twelfth)3. 十位数序数词的构成:个位数+ ty 改“y”为“ieth ”:twentieth, thirtieth4. 复合序数词只需把后一个基数词改成序数词:twenty-one:twenty-first*其中以下数词“5;9;12;14;19;40;44;50;90;99;100”很特殊,同学经常犯错,望重视这些词,他们分别是:fifth; ninth; twelfth; fourteenth; nineteenth; fortieth; forty-fourth; fiftieth; ninetieth; ninety-ninth; hundredth序数词前常有“the”;但如有形容词或定语修饰就不需“the”(1) There is a fourth boy in the playground.(2) This is my second time to come here.用法:1.日期(the fifth of March)2. 修饰名词( the first time)3. 修饰基数词(the first ten people)1. Today is his ninth birthday.2. December the twenty-fifth is the most day in western countries.3. Tom is the third tallest boy in my class.4. The first ten people to finish the charity walk will receive a souvenir.基数词和序数词的语法功能1. 作主语Three from ten leaves/is seven.The first to arrive at school is always Mary.2. 作宾语The school has a population of over 2 thousand.Please give me the fifth.3. 作表语The woman looks over 30.I was the fifth to speak at the meeting.4. 作同位语We two can go there for the meeting.You may wait for us four at the gate.5. 作定语Five students got lost in the forest.They were happy to buy the first three books at the bookshop.分数构成:分子和分母分子用基数词;分母用序数词,当分子大于数词“一”;分母的序数词用复数,例:Two fifths注意:分数作主语,谓语形式的单复数1. Two fifths of the class are league members.2. Half of the population are workers. (看后面的名词决定谓语的单复数)3. Three quarters of the water is sea water.百分数(per cent)30% 30 per cent百分数作主语,注意谓语的单复数形式1. Sixty per cent of the students have passed the exam.2. 70 per cent of the earth is covered by water.数词应注意以下几点:1. 固定词组hundreds of ; thousands of ; millions of ; billions of当前面有数词修饰这些词时,“hundred; thousand; million; billion” 不能用复数例:two hundred students; thirty thousand people没有数词修饰时,这些词常用复数(除several)例:many hundreds of toys; millions of people注意下面特殊句:Several hundred of the students are working hard now.Five hundred of the people will be invited to the party.2. 数词的其他用法:Lesson 15 = the fifteenth lessonRoom 203 Channel 6 n.+基=定+序+n.April 10, 2003 April the tenth,2003The last 3 pages the first 5 minutesthe No. 16 busin one’s +整十位数的复数形式in his twentiesin the 1930s in the nineteen thirties3. 序数词前一般用定冠词,有时可用不定冠词(意义不一样)He wanted to pay a second visit to our countryShall I ask him a third time ? 还要问他第三次4. 当一个基数词和一个序数词同时修饰一个n.时,序数词一般位于基数词之前,例:The first three sentences need to be read againThe second five pupils are from class one .三个一等奖three first prizes first three prizes 前三个奖5. 年份、日期、时刻的表示法1)年份1600—sixteen hundred 1949—nineteen forty-nine1970 / 1970’s—nineteen seventies2) 序数词表日期May 23—May the twenty-third or the twenty-third of May3) 日期的书写用序数词也可用基数词,说话用序数词4) 倍数的表示法……timesa……..times +名词短语The size of shanghai is five times the size of that city .b……..times+形容词比较级……four times larger than ……c…….times + as + 形+ asd ……five times as big as5) 大于more than , over / aboveabove 20 degrees小于less than ……under / belowless than 2 hours ; the boy under 6Sell it below 100 dollars数词的相关练习根据相对应的中文,完成句子1. My grandpa is very glad Today because it’s his _________(九十) birthday today .2. In his _________ (四十), he began to learn how to play computers.3. Wednesday is the_________ day of week.4. Two _________ (五) of the class are league members.5. Half of the population _________ (be) workers.6. _________ (九十) percent of the water in this area is dirty.7. The _________ (八英尺高) table is made of metal.8. The __________(第一)_ _________(六) students are going to look after the player’s things.9. Do you know which is the _________ (四) longest bridge in our city?10. There are two _________ (百) students in the park now.选择题( )1. A ________ boy can sing the English song very well.A. ten-years-oldB. ten years oldC. ten-year-oldD. fifth years old( )2. The river through our city, which is about ________, is clean again.A. 6000 meters longB. 6000-meters-longC. 6000-meter-longD. 6000 meter long( )3. Nanjing is a city with many places of interest, ________ tourists come here every year.A. Thousand ofB. ThousandC. ThousandsD. Thousands of( )4. I think _______ of the materials I listened to at the beginning of the exam ________ easy.A. two thirds, isB. second three; areC. two thirds; areD. two third; are( )5. _______ people in the world are sending and receiving e-mails every day.A. Million ofB. Many millions ofC. Several million ofD. Several millions( )6. It is said that the gravity on Mars is only about _______ of the gravity on earth.A. three eighthesB. third-eighthC. three-eightsD. third-eight( )7. He became a famous writer when he was _______.A. in his fiftyB. in his fiftiesC. in fifty years oldD. in fifties( )8. It took ______ to get there.A. two hours and a halfB. two hours and halfC. two hour and a halfD. two hour and half( )9. ________ of the surface of the earth ________ covered by land.A. one third; isB. two thirds; isC. third first; areD. first third; are( )10. The _______ people will each get a certificate after doing the charity show.A. five firstB. first fifthC. one fiveD. first five。

英语语法数词

英语语法数词

语法-数词在英语中,表示数量多少和先后顺序的词被称为数词。

数词可分为两种:1.基数词表示"多少"的词叫做基数词,如:one (一),twenty(二十),hundred(百)等。

2.序数词表示"第几"的词叫做序数词,如:first (第一),twentieth (第二十),hundredth(第一百)等。

基数词用法相当于名词和形容词,可作主语,表语,定语,状语。

百/千a/one hundred/thousand 一万ten thousand 三万thirty thousand百万million 十亿billion a man in his forties 一个四十几岁的男人固定词组hundreds of 成百上千;好几百thousands of 成千上万;好几千tens of thousands of 好几万hundreds of thousands of 好几十万dozens of 好几打;好几十scores of 大量注意;当前面有数字时,不可以加s.e.g. Thousands of people c ame to see Jay Chow’s concert this evening.There are three thousand seats in this theatre.three dozen bottles of wine 36瓶酒They received dozens of letters from the readers.序数词说明:1)英语序数词1-19除第一(first),第二(second),第三(third)有特殊形式外,其余均由基数词后加-th 构成。

2)有几个序数词加-th 时拼法不规则,它们是:fifth,eighth,ninth,twelfth。

3)十位整数的序数词的构成方法是:先将十位整数基数词的词尾-ty 中的y变成i,然后加-eth.4)基数词"几十几"变成序数词时,仅将个位数变成序数词,十位数不变。

英语中的数词

英语中的数词

数词的定义:表示"多少"和"第几"的词,叫数词。

其用法相当于名词或者形容词。

数词分为基数词和序数词两种。

基数词: 表示数目的词是基数词,最基本的数词如下:1 one,2 two,3 three,4 four,5 five,6 six,7 seven,8 eight,9 nine, 10 ten, 11 eleven, 12 twelve, 13 thirteen, 14 fourteen, 15 fifteen, 16 sixteen, 17 seventeen, 18 eighteen, 19 nineteen, 20 twenty, 30 thirty, 40 forty, 50 fifty, 60 sixty, 70 seventy, 80 eighty, 90 ninety, 100 a hundred,1,000 a thousand,1,000,000 a million,1,000,000,000 a billion.基数词1-12 是独立单词,需逐个记忆。

基数词13 - 19是个位数词的词干后加-teen 构成。

其中thirteen, fifteen, eighteen, 变化不规则。

基数词20 ━90 是在十位数词后面加-ty 构成。

基数词21 ━99 是在十位数词后面加上个位数词合成,中间加上连字符" ━" 。

例如:21 twenty ━one 95 ninety ━five基数词三位以上的数词, 在百位和十位之间,一般要用连词"and "。

例如:132 one hundred and thirty ━two.1340 one thousand three hundred and forty表示"万"的词英语中没有.如1万可用10千来表示。

ten thousand. 30万可用three hundred thousand 来表示。

英语数量词

英语数量词

英语数量词数量词是英语中一种常用的词类,也是英语词汇中最丰富的词类之一。

在英语表达中,使用数量词可以更加准确地表达语义。

本文将介绍英语中常用的数量词,以及数量词的用法。

英语中的数量词大致可分为以下几类:一、基数词基数词是表示某物的数量的词,如one(一),two(二),three(三),four(四),five(五)等。

例如:I have two sisters.(我有两个姐妹。

)二、序数词序数词表示某物的顺序,如first(第一),second(第二),third(第三),fourth(第四),fifth(第五)等。

例如:She is the fourth child in the family.(她是家里的第四个孩子。

)三、普通分数普通分数由基数词和序数词共同组成,如half(一半),quarter(四分之一),third(三分之一),fourth(四分之一),fifth(五分之一)等。

例如:He ate a quarter of the cake.(他吃了四分之一块蛋糕。

)四、倍数倍数一般由multiple(倍)和基数词组成,如double(两倍),triple(三倍),quadruple(四倍),quintuple(五倍)等。

例如:The price of the food has quadrupled in the lastmonth.(食物的价格在上个月翻了四倍。

)五、集合数量词集合数量词是形容整体的数量之用,如pair(一对),dozen (一打),score(二十),hundred(一百),thousand(一千)等。

例如:We bought two dozen eggs.(我们买了两打鸡蛋。

)六、计量计量数量词是用来表示重量、距离、面积等的词语,如ton (吨),pound(磅),ounce(盎司),foot(英尺),meter(米)等。

例如:This truck is loaded with five tons of steel.(这辆卡车装载着五吨钢铁。

英语中的数词

英语中的数词

英语中的数词英语中的数词英语中的数词指基数词和序数词。

一、基数词基数词是从1计数的词,用来表示数目、数量、时间等,在英语中,基数词用来表示任何数量。

基数词分为两种:1、十进制数这种数字从个位开始,一直到十位,依次为:one, two, three, four, five, six, seven, eight, nine, ten。

2、二十以上的数当数字大于20时,需要注意它的发音,比如 twenty-one, thirty-two, forty-nine, fifty-six, sixty-three, seventy-two, eighty-nine, ninety-seven 等,其中的twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety都是基数词,他们的发音完整,不要忘记在-one, -two, -three, -four, -five, -six, -seven, -eight, -nine后面加上音节-teen (-ty) 。

二、序数词序数词用来表示次序,是由基数词派生而来,其发音主要有一般和特殊之分,一般情况下,在基数词后加-th,例如:first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth。

特殊的,有eleventh, twelfth, thirteenth, fourteenth,fifteenth, sixteenth, seventeenth, eighteenth, nineteenth, twentieth。

三、其他英语中还有其他数词,如:hundred, thousand, million, billion,等,他们的发音可分为两部分,如:hundred ['hndrd], thousand ['θaznd] 等。

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英语中的数词一.概述数词是表示数目多少和顺序先后的词,分为基数词和序数词两种.基数词表示数目,序数词表示顺序.二.基数词1.基数词的构成1)1~12是独立的单词1 one2 two3 three4 four5 five6 six7 seven 8 eight 9 nine10 ten 11 eleven 12 twelve2)13~19是在基数词后加-teen13 thirteen 14 fourteen 15 fifteen16 sixteen 17 seventeen 18 eighteen19 nineteen注意:13和15的拼写发生变化,18应省去原来的字母t,应熟记3)20~90的整位数是在基数词后加-ty20 twenty 30 thirty 40 forty50 fifty 60 sixty 70 seventy80 eighty 90 ninety注意:20,30,40,50,80的拼写发生变化4)21~29由”十位数20+个位数1~9”构成,中间加连字符21 twenty-one 22 twenty-two 23 twenty-three24 twenty-four 25 twenty-five 26 twenty-six27 twenty-seven 28 twenty-eight 29 twenty-nine其他”几十几”的数词依此类推.31 thirty-one 42 forty-two 53 fifty-three64 sixty-four 75 seventy-five 86 eighty-six97 ninety-seven 99 ninety-nine5)百位数由1~9加hundred构成100 one/a hundred 200 two hundred500 five hundred 900 nine hundred百位数含十位数和个位数时,百位数和十位数之间常用and连接;百位数加个位数时,也可用and连接,但在美式英语中,这个and往往省略.158 a/one hundred (and)fifty-eight599 five hundred (and)ninety-nine605 six hundred (and)five808 eight hundred(and)eight6)千位数由1~9加thousand构成1,000 a/one thousand 2,000 two thousand5,000 five thousand 9,000 nine thousand千位数带百、十、个位数时,由千位数直接加百、十、个位数构成.a只能用在整个词组之首.one比a 正式,因而在正式文体中应该用one.另外,千位数中如果百位数和十位数均为零,可用and与个位数连接,但在美式英语中,and往往省去.1,005 one/a thousand (and)five3,008 three thousand (and)eight4,836 four thousand eight hundred (and)thirty-six6,927 six thousand nine hundred (and)twenty-seven7)万位数的构成英语中的”万”要用”数词+thousand“表示.10,000 ten thousand20,000 twenty thousand50,000 fifty thousand60,856 sixty thousand eight hundred (and)fifty-six89,733 eighty-nine thousand seven hundred (and)thirty-three“10万~99万”的表示法100,000 a/one hundred thousand200,000 two hundred thousand335,452 three hundred (and) thirty-five thousand four hundred(and)fifty-two650,700 six hundred (and)fifty thousand seven hundred998,616 nine hundred (and)ninety-eight thousand six hundred (and)sixteen8)”百万”的表示法“百万”以million为单位.1,000,000 a/one million2,000,000 two million3,600,000 three million six hundred thousand8,964,688 eight million nine hundred (and)sixty-four thousand six hundred (and)eighty-eight9)”千万”的表示法10,000,000 ten million20,000,000 twenty million96,000,000 ninety-six million10)”亿”的表示法100,000,000 a/one hundred million600,000,000 six hundred million11)”十亿”的表示法1,000,000,000 (10亿) a/one billiona/one thousand million2,000,000,000 (20亿) two billiontwo thousand million1000以上的基数词,从后向前数,每三位数加一个逗号,作为一个单位,第一个逗号前的数为thousand(千),第二个逗号前的数为million(百万).8,869 eight thousand eight hundred (and)sixty-nine40,664,820 forty million six hundred (and)sixty-four thousand eight hundred (and)twenty2.基数词的用法1)作主语2)作表语3)作宾语4)作定语5)作同位语hundred,thousand,million在读数时不可加s.4,685 four thousands,six hundreds and eighty-five(误)four thousand,six hundred and eighty-five(正)hundred,thousand,million修饰名词,表示具体数目时,不可加s.这所学校有600名学生.There are six hundreds students in the school.(误)There are six hundred students in the school.(正)hundreds of (几百),thousands of (几千),millions of (几百万)等表示泛指,数量不定,要加s,用复数形式.He spent hundreds of dollars on books.他买书花了数百美元.Thousands of people attended the meeting.数千人参加了会议.Millions of workers lost their jobs.数百万工人失业.The birds came by hundreds.鸟儿成百地出现.The novel sold by the millions.这部小说销售以百万计.表示整十的基数词可用复数形式,表示人的岁数或年代.The man is in his thirties.那人有三十多岁.She died in her nineties.她是九十多岁去世的.He went abroad in the eighties.他八十年代出国去了.in one’s teens (正)十几岁in one’s tens (误)年份用基数词表示,通常以”百”为单位来读.1956 读作nineteen (hundred and)fifty-six (hundred and通常要省去)1999 读作nineteen (hundred and)ninety-nine但2000年,2001年,2002年等要用thousand.2000 读作two thousand2001 读作two thousand and one2008 读作two thousand and eight2020 读作two thousand and twenty三.序数词1.序数词的构成1)第一至第三英语序数词第一至第三各有特殊形式.第一first(缩写为1st) 第二second(缩写为2nd)第三third(缩写为3rd)2)第四至第十九序数词第四至第十九都是在基数词后加-th构成,发[θ]音.但第八、第九和第十二的拼写有变化,应特别注意.第四fourth 第五fifth第六sixth 第七seventh第八eighth 第九ninth第十tenth 第十一eleventh第十二twelfth 第十三thirteenth第十四fourteenth 第十五fifteenth第十六sixteenth 第十七seventeenth第十八eighteenth 第十九nineteenth3)第二十至第九十从第二十到第九十表示整十的序数词,是把相应的基数词尾的y改为i,再加-eth.第二十twentieth 第三十thirtieth第四十fortieth 第五十fiftieth第六十sixtieth 第七十seventieth第八十eightieth 第九十ninetieth4)非整十的多位数非整十的多位数,把个位数变为序数词即可,十位数不变.第二十一twenty-first(21st) 第三十二thirty-second(32nd) 第四十三forty-third(43rd) 第五十四fifty-fourth(54th)第六十五sixty-fifth(65th) 第七十六seventy-sixth(76th)第八十七eighty-seventh(87th) 第九十八ninety-eighth(98th) 第九十九ninety-ninth(99th)第一百零一(one)hundred and first(101st)第二百八十八two hundred (and)eighty-eighth(288th)第九百七十三nine hundred (and)seventy-third(973rd)第一千零一(one)thouand and first(1,001st)序数词的缩写式是由阿拉伯数字加上序数词的最后两个字母组成.5)hundred等的序数词hundred,thousand和million的序数词分别为hundredth,thousandth,millionth.第一百(one)hundredth (不可用a)第八百eight hundredth第一千(one)thousandth第一万ten thousandth第十万 (one)hundred thousandth第一百万(one)millionth2.序数词的用法1)作主语2)作宾语3)作表语4)作定语5)作同位语6)作状语序数词前常要加定冠词.He will be the first to speak.他将第一个发言.The ninth boy is from England.第九个男孩来自英国.序数词前用了物主代词或名词所有格,则不用定冠词.She is his second wife.她是他的第二个妻子.It is Lily’s third dictionary.这是莉莉的第三本词典.表示比赛或考试的名次时,定冠词常省略.Tom was (the) first in the match.汤姆在比赛中获得第一名.用作副词时,不加定冠词.I first met him in Shanghai.我第一次见到他是在上海.序数词前有时可用不定冠词,表示”又一,再一”,指在原有基础上的增加,相当于another.I’ll read the book a second time.我将把这本书再读一遍.(已读过一遍)He saw a third monkey.他又看见了第三只猴子.(已看见两只)3.数词的各种表达法1)章节、页数、课次、行次、第几中学、第几车间等编号常用”名词+基数词”表示,也可用”the+序数词+名词”表示.第一章:Chapter One或the first chapter第二节: Section Two或the second section第五课: Lesson Five或the fifth lesson第23页:page 23或the twenty-third page第8行: line eight 或the eighth line第三中学: Middle School 或the Third Middle School第二机械车间: Machine Shop或the Second Machine Shop第一次世界大战: World WarⅠ或the First World War较大的数字,要用”名词+基数词”表示.第608页: page six o eigth(o读作[?u])第839页:page eight three nine或page eight hundred (and)thirty-nine第2645页:page two six four five或page twenty-six forty-five2)房间、门牌等的表示法房间、门牌、电话号码、信箱号码、邮政编码等,用”名词+基数词”表示.第236房间:Room(No.)236(读作room(number)two three six)中山东路66号:(No.)66 East Zhongshan Road电话号码: Telephone number (读作 o two five eight four three one eight nine eight eigth(或double eight))(在o,two,five之后要稍加停顿)326信箱: 326邮政编码:230094 Postcode 230094(读作:postcode two three o o nine four)33路公共汽车: Bus (No.)33或The Bus309班机:Flight Number 309507航班:Flight Number 5073)世纪、年代表示法年代为四位数时,各分成二位来读.20世纪:the 20th century21世纪:the 21st century在50年代:in the fifties(数词用复数)在90年代:in the nineties(数词用复数)1990年:nineteen ninety1998年:nineteen ninety-eight注意下面年代的读法:2000年:(the year)two thousand2001年:two thousand (and)one2008年:two thousand (and)eight2025年:two thousand (and)twenty-fivetwenty twenty-five2050年:two thousand (and)fiftytwenty fifty4)日期表示法日期通常用序数词来读.5月1日:1(st)May(英式)(读作the first of May)May 1 (st)(美式)(读作May (the)first/May one)10月5日: 5(th)October(英式)(读作the fifth of October) October 5(th)(美式)(读作October(the)fifth/October five) 2008年6月28日: 28(th)June,2008(英式)June 28(th),2008(美式)5)公元表示法“公元”用AD或.表示;”公元前:用BC或.表示.公元6世纪:in the sixth century AD公元55年:in 55 ADin (the year) AD 55公元前500年:in (the year) 500 BC6)钟点表示法钟点时刻通常用基数词表示.表示整点可加o’clock,口语中常省去.It’s ten o’clock. 现在10点钟.He got up at six (o’clock). 他6点钟起的床.表示”几点几分”,在30分钟之内,包括30分钟,用past,结构为:分钟数+ past/after +小时.9:10 ten past nine 或nine ten10:15 (a) quarter past ten或ten fifteen11:30 half past eleven 或eleven thirty5:25 twenty-five past five或five twenty-five表示”几点几分”,分钟数超过了30分钟,结构为:到下一钟点所差分钟数+ to/of(美)+下一小时数.7:40 twenty to eight 或seven forty9:45 (a)quarter to ten或nine forty -five用. 表示”上午”,用. 表示”下午”.另外,o’clock不能与. 或. 连用.四.分数词1.分数词的构成分数词由基数词和序数词构成:分子用基数词,分母用序数词.分子大于1时,分母序数词须用复数形式.1/2: a/one half 1/3: a/one third1/5: a/one fifth 1/4:a/one fourth或a/one quarter2/3: two thirds 3/4: three fourths或three quarters5/8: five eighths 7/10: seven tenths1 1/2: one and a half2 3/4:two and three fourths分母和分子之间可用连字符,也可不用.2.分数词的用法分数词常同of短语连用,在句中作主语或宾语.五.四则运算表示法加、减、乘、除算式的表示法.2+6=8 Two and six are eight.Two plus six is eight.8+3= How much is eight plus three?10-8=2 Eight from ten leaves two.Ten minus eight is two.4×3=12 Four times three is twelve.16/4=4 Sixteen divided by four is four.Sixteen divided by four makes four.六.数词的其他用法的用法1)half作形容词意为”一半”,修饰单数可数名词时,有两种结构: 结构: half a/an +单数名词a half +单数名词半天half a day 半月half a montha half day a half month半小时half an hour 半英里half a milea half hour a half mile2)half作名词,常用于half of…结构,of常可省去,但half of后为人称代词时,of不可省一半的工作: half (of)the work一半的时间: half (of) the time一半的书: half (of) the books一半的房子: half (of)the houses我们中的一半: half of us他们中的一半: half of them3)”一个半”的表示法如下一个半苹果a/one apple and a halfone and a half apples一个半小时a/one hour and a halfone and a half hours2.小数表示法小数用基数词表示,小数点是point,读作[p?int],”零”是zero,读作[zi?r?u].zero point three zero point six fivefifteen point nine six ninety-five point three eight3.百分数表示法百分数用基数词表示,在数字后加percent.5% five percent 30% thirty percent84% eight-four percent 99% ninety-nine percent100% one hundred percent 250% two hundred and fifty percent4.倍数表示法1)”增加一倍”用doubleThe price of steel has doubled over the past ten years.钢的价格在过去的十年里增加了一倍.2)”比……大长……(n-1)倍”用:倍数+形容词/副词比较级 + than +被比部分That house is three times bigger than this one.那所房子比这所房子大两倍.The output of cars is four times greater than that of last year.汽车的产量比去年增加了三倍.3)”是……的几倍”用:倍数 + as + 形容词 + as +被比部分This factory is four times as big as that one.这个工厂是那个工厂的四倍大.She has three times as many books as I have.她的书是我的三倍之多.5.年龄表示法1)一般说法她13岁.She is thirteen years old.She is thirteen.She is aged thirteen.She is thirteen years of age.2)in one’s +整十的基数词复数“in one’s +整十的基数词复数形式”表示”……多岁了”.Her father is in his thirties.她爸爸三十多岁了.The old woman is in her nineties.这位老奶奶已经九十多岁了.3)at the age ofat the age of…表示”在……年龄”,常作状语.He went to school at the age of six.他6岁上学.At the age of nineteen,she joined the Party.她19岁入的党.6.约数表示法约数表示”多于,大约,左右,以上,不足”等意义,常用表示法如下:多于→over,more than 少于→less than大约→about,around 将近→almost,nearly左右→or so 或……以上→or more或……以下→or less 在……以下→underThe street is over 2,000 metres long.这条大街有2000多米长.He finished his homework in less than an hour.他不到一小时就做完了作业. There are about 500 books on the bookshelves.书架上大约有500本书.Almost/Nearly one hundred people swam across the river.将近有100人游过了那条河.The hall can hold 1,000 people or more.这个大厅能容纳1000多人. These toys are for children under five.这些玩具是给5岁以下儿童玩的.It will take them four of five days to walk out of the forest.他们要花四五天时间才能走出森林.The city has changed a lot in the past ten years or so.在过去十年左右的时间里,这座城市发生了很大变化.。

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