英语数词用法
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注:通常前面要加定冠词 the;但出现不定冠词a 或an时,则表示“再—”,“又—”。 We'll go over it a second time.
序数
(1)单纯的序号,可在基数词前加number,简写为No.。如: No.1第一号
(2)事物名词的序号表达法有所不同: • ①对于一些小序号可有序数词也可用基数词表达,形式分
another, other, more修饰数词的用法 1. another A) another+名词单数 B)表“另外的、额外的、附加的时,+具体数字 的复数 1.—Have you finished your report yet?
—No,I will finish it in 10 minutes. A.another B.Other C.more D.less 2.The strike may last another three days.罢 工可能还要持续三天。
数形式。 当分数作主语,谓语要根据分数后的名词确定 单复数,如果是可数名词用复数,不可数名词用单数。 One third of the students in our class have been to Beijing.
Four fifths of the water is drunk by the children.
• 加s + of + 可数名词复数; • 数词与名词合成形容词时,四个单词用单数形
式。
• millions of trees
• a ten-thousand-word story
• an 11-year-old boy
3. several, some, many等词被认为是具体数字, 其后跟hundred, thousand, million, billion的 单数+名词复数。 Several hundred soldiers are coming.
英语数词用法
数词分基数词和序数词两类。 一、 数词的分类 1. 基数
A.从1——10 one,two,three,four,five,six,seven,
eight,nine,ten . B.从 11——19
eleven,twelve, thirteen, fourteen, fifteen, sixteen, seventeen,eighteen, nineteen.
• 3. “乘”用time(动词)或multiply表示 3X4=? How much is three times four?
3X4=12 Three times four is/are twelve.
Three fours is/are twelve. Multiply three by four,and we get twelve.
3. more 1.more 1)She has got five more electric fans.她还有
五台电扇。
2.more还可与many,some等词连用 (1)There are many more dictionaries on the desk.课桌上有许多词典。 (2)Would you like some more tea?再喝点茶好 吗?
F.基数词的句法功能 可作主语、宾语、定语、表语、同位语。
The two happily opened the box.(作主语) They three tried to finish the task (作同位语) .
三、数词的用法
1. hundred, thousand, million, billion这几个 2. 数词前如有具体数字,要用单数形式, 3. 后面加可数名词复数。
4. 名词省略 如果前后意思清楚,another或more后面的名词可 以省去。如:
1.I climbed the stairs slowly,carrying a big suitcase,my father following with two more.
加减乘除表示法
• 1. "加"用plus,and或add表示;"等于"用is, make,equal等词表示。 2+3=? 可表示为: How much is two plus
2. other +复数名词,置于数词之后 B)但与定冠词the连用时,other要放在数词前。
A.Tony is going camping with _boys next Sunday.
A.little two other B.two little other C.two other little D.little other two B.Do you know where he found the other two photos?另外两张照片
fourth—4th twentieth—20th
twenty-third—23rd 4.序数词的句法功能 序数词在句中可作主语、宾语、定语和表语。 The second is what I really need.(作主语) He choose the second.(作宾语) We are to carry out the first plan.(作定语) She is the second in our class.(作表语)
别为:the + 序数词 + 名词;名词 + 基数词。如:第一 次世界大战可以表示为the First World War或World War One, Lesson 8 =the eighth lesson • ②对于一些大序号我们通常只用一种表达法,即名词 + 数 词。如:501号房间表示为Room 501, 538路公共汽车表 示为Bus 538。 • ③可用a / the + number + 基数词 + 名词。如:a No.5 bus一辆五路公共汽车,the No.8 bus那辆8路公共汽车。
• 2. "减"用 minus或 take from表示 10-6=? How much is ten minus six?
10-6=4 Ten minus six is four.
Take six from ten and the remainder is
four. Six (taken) from ten is four. 十减去六等于四
5. 用数词表示事物的编号。 名词+基数词=the+ 序数词+名词。 Room 8 = the eighth room
6. 用数词表示人的不确切岁数或年代, 用几十的复数形式表示。 He became a teacher in his thirties.
in the 1990s
7. 分数是由基数词和序数词一起来表示的。 基数词作分子,序数词作分母, 除了分子是“1”以外,其他情况下序数词都要用复
8. 数词还可以用来表示时间、年月日等。
注意:1)百分数 由基数词+percent来表示 95%—— ninety-five percent
2) 英语中表达“几个半”有两种方法: ①“数词+and a half+名词复数”; ②“数词+名词复数+and a half”。
例如:two and a half hours/ two hours and a half
二、时刻表示法 1. 几点钟 5:00 读作 five o’clock
2. 几点过几分 five past seven 七点过五分 half past six 六点半 a quarter past eight 八点过一刻
3. 几点差几分 ten to eight 差十分八点 a quarter to twelve 差一刻十二点 twenty to six 差二十分六点
序数词
• 表示顺序的词称为序数词。 • 1.第一至第十九
特殊: first, second, third, fifth, eighth,ninth, twelfth • 其他: 添加“th”。如 sixth、nineteenth
2.从第二十至第九十九 变y为i,再加“eth”构成。
twenty——twentieth thirty——thirtieth
Three multiplied by four makes twelve.
三乘以四等于十二
• 4. “除”用divide的过去分词形式表示 16÷4=? How much is sixteen divided
by four? 16÷4=4
Sixteen divided by four is four. Sixteen divided by four equals/gives/makes four.
C.从 21——99 特殊:twenty,thirty, forty,fifty,eighty
21 twenty-one D.百位数
101 a hundred and one
个数基数词后加"hundred",表示几百;在几十几与 百位间加上and.( 200 two hundred 101 a/one hundred and one , 320 three hundred and twenty , 648 six hundred and forty-eight )
three?
2+3=5 Two plus three is five. Two and three is equal to five. Two and three make five. Two added to three equals five.
If we add two to/andLeabharlann three, we get five
表示第几十几时,用几十的基数词+连字符
“-”+个位序数词。
thirty-first 第三十一
fifty-sixth 第五十六
seventy-third 第七十三 ninety-ninth 第九十
九
3.序数词的缩写形式:阿拉伯数字后加上th。
irst—lst second—2nd third—3rd
4. a number of+名词复数,许多,大量。谓语用复数; A number of students were absent from the
meeting. the number of+名词复数,......的数目。谓语用单数。
The number of students absent from the meeting was increasing.
• in twos and threes 三三两两;零零星星 • They arrived in twos and threes. • sixes and sevens 乱七八糟,没有头绪 • The boy made the room at sixes and
sevens.
• 2. 如果hundred, thousand, million, billion • 这几个数词前没有具体数字,应在四个词后
two hundred students six thound people
Dozen 一打
dozens of 几十,许多,大量 two dozen eggs For dozens of years.
score scores 许多,好几十
three score of eggs scores of people
2,648 two thousand six hundred and forty-eight
16,250,064 sixteen million two hundred and fifty thousand sixty-four
5,237,166,234 five billion,two hundred and thirtyseven million,one hundred and sixty-six thousand, two hundred and thirty-four
E.千位数以上 thousand million百万
billion十亿
• 从数字的右端向左端数起,每三位数加一个逗号“,”。 从右开始,
• 第一个“,”前的数字后添加 thousand,第二个“,” 前面的数字后添加 million,第三个“,”前的数字后添 加 billion ,然后一节一节分别表示。