基数词 |
| 表示一定数目的词 |
| 第1类 | one two three four five six seven eight nine ten eleven twelve 12个,是特殊的,不规则要硬背 |
| 第2类 | 13-19: thirteen fourteen fifteent sixteen seventeen eighteen nineteen 7个,发音都有两个重音;都有后缀-teen.除thirteen和fifteen外 |
| 第3类 | 20-30-40-50-60-70-80-90: twenty thirty forty fifty sixty seventy eighty ninety 8个,整几十,均以后缀ty结尾。sixty、 seventy、eighty、ninety |
| 几十几 | 可看成是合成词。结构:用十位整数加上个位整数,用“一”连接。很简单,变化是规则的。 twenty-one forty-six ninety-five |
| 百位数 | 个数基数词形式加“hundred”,表示几百,在几十几与百位间加上and. 101 a hundred and one 320 three hundred and twenty 648 six hundred and forty-eight |
| 千位数以上 | 从数的右端向左数每3位数加个“,”。第一个“,” 前的数字后添加 thousand |
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| 第二个“,” 前面的数字后添加 million |
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| 第三个“,” 前的数字后添加 billion |
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| 然后一节一节分别表示,两个逗号之间最大的数为百位数形式。 |
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| 2,648 two thousand six hundred and forty-eight |
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| 5,237,166,234 five billion,two hundred and thirty-seven million,one hundred and sixty-six thousand,two hundred ,and thirty-four |
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| 表示确切数字时,不能用百、千、百万、十亿的复数形式;但是,当基数词表示不确切数字,如成百、成千上万,三三两两时,基数词则以复数形式出现。 |
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| There are hundreds of people in the hall.厅里有数以百计的人。 |
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| Thousands and thousands of people come to visit the Museum of Qin Terra-Cotta Warriors and Horses every day每天有成千上万的人来参观秦兵马涌博物馆 |
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| They went to the theatre in twos and threes他们三三两两地来到了剧院。 |
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| 人不确切岁数或年代,用几十的复数形式 He became a professor in his thirties.他三十多岁时成为了教授。 |
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| She died of lung cancer in forties.她四十来岁时死于肺癌。 |
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| It was in the 1960s.那是在二十世纪六十年代。 |
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| 句法功能:句中可作主语、宾语、定语、表语、同位语。 |
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| The two happily opened the box.两个人高兴地打开了盒子。 (作主语) |
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| I need three altogether.我总共需要三个。 (作宾语) |
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| Four students are playing volleyball outside.四个学生在外面打排球 (作定语) |
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| We are sixteen.我们是16个人。 (作表语) |
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| They three tried to finish the task before sunset.他们三个人尽力想在日落前完成任务。 |
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序数词 |
| 表示一定顺序的词,序数词表顺序时,前面加“the”。序数词还可以表达年份;表达具体日期5,the first(五一);表达排名the first one(第一) |
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| 一、二、三(first、second、third),单独记;从4开始上t,八去t,九除e, 5ve要用f替,整十基数变序数,先把ty变成tie;要是遇到两位数,十位基数个位序,th最后加上去。 |
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| 几十尾巴ty变tie,后面跟上th(twentieth);几十几,头不变,尾巴变,中间记得加个杠(twenty-fourth);遇到特殊要除外(twenty-first) |
| 1-10 | first second third fourth fifth sixth seventh eighth ninth tenth |
| 11-20 | eleventh twelfth thirteenth fourteenth fifteenth sixteenth seventeenth eighteenth nineteenth twentieth |
| 21-30 | twenty-first twenty-second twenty-third twenty-fourth twenty-fifth twenty-sixth twenty-seventh twenty-eighth twenty-ninth thirtieth |
| 31-40 | thirty-first thirty-second thirty-third thirty-fourth thirty-fifth thirty-sixth thirty-seventh thirty-eighth thirty-ninth fortieth |
| 41-50 | forty-first forty-second forty-third forty-fourth forty-fifth forty-sixth forty-seventh forty-eighth forty-ninth fiftieth |
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| 第1类: | first (1st)第一 second(2nd)第二 third(3rd)第三 这类3个.(括号里是缩写,均在阿拉伯数字后面加上相应序数词的最后2个字母构成),序数词里最特殊的,要硬记。 |
| 第2类: | fourth(4th)第四 fifth (5th)第五 sixth (6th)第六 seventh(7th)第七 eighth (8th)第八 ninth (9th)第九 tenth (10th)第十 eleventh (11th)第十一 twelfth(12th)第十二 |
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| thirteenth(13th)第十三 fourteenth(14th)第十四 sixteenth(16th)第十六 seventeenth(17th)第十七 eighteenth(18th)第十八 nineteenth(19th)第十九 |
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| 这类16个.均在相应的基数词后面加上后缀-th构成。要注意其中fifth、eighth、ninth、twelth四个词的拼法。 |
| 第3类: | twentieth(20th)第20 hirtieth(30th)第30 fortieth(40th)第40 fiftieth(50th)第50 sixtieth(60th)第60 seventieth(70th)第70 eightieth(80th)第80 ninetieth(90th)第90 |
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| 十位整数的序数词,共8个。构成:先将相应的十位整数的基数词词尾-ty中的y改成i,然后在加上后缀-eth。 |
| 第4类: | thirty-first(31th)第三十一 sixty-second(62nd)第六十二 eighty-seventh(87th)第八十七 ninety-eighth(98th)第九十八 |
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| 表“第几十几”跟表“几十几”的基数词一样简单。构成:均由基数词“几十几”变化而来,十位数不变,仅把个位上的基数词变成序数词,中间记加“——”个杠 |
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| 1-19 : | one—first two—second three—third five—fifth eight—eighth nine—ninth twelve—twelfth为特殊,其它序数词均由其基数词后加“th”构成。six— sixth、nineteen— nineteenth. |
| 20-29: | 整数第几十的形式由其对应的基数词改变结尾字母y一i,再加“eth”构成。twenty一twentieth thirty一thirtieth |
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| 第几十几用几十的基数词加连字符“-”和个位序数词一起表示thirty-first 第三十一 fifty-sixth 第五十六 seventy-third 第七十三ninety-ninth 第九十九 |
| 100以上: | 由基数词变结尾部分为序数词表示 one hundred and twenty-first第一百二十一 one thousand,three hundred and twentieth第一千三百二十 |
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| 序数词句法:序数词在句中可作主语、宾语、定语和表语。 The second is what I really need.第二个是我真正需要的。(作主语) |
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| He choose the second.他挑选了第二个。(作宾语) |
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| We are to carry out the first plan.我们将执行第一个计划。(作定语) |
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| She is the second in our class.在我们班她是第二名。(作表语) |
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| 注:序数词在使用时,通常前面要加定冠词 the;但是如果序数词前出现不定冠词a或an时,则表示“再——”,“又——”。 |
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| We'll go over it a second time.我们得再念第二遍。 |
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| We've tried it three times.Must we try it a fourth time? 我们已经试过三遍了,还必须试一次(第四次)吗? |
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| 另外,基数词也可以表示顺序。只需将基数词放在它所修饰的名词之后即可,不需要添加定冠词。 |
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| the first lesson一Lesson One the fifth page一Page 5(five) the twenty-first room一Room 21(twenty-one) |