中考数词复习

课件19张PPT。　

数 词·译林牛津版课标考点：
1．掌握基数词和序数词的构成和用法。
2．掌握年、月、日、时的基本表达方式，分数、以及hundred、thousand、million等的用法及其一些特殊用法。考点一：基数词表示数目的多少的词为基数词。
(1).1—12的基数词是独立的词。
one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve.(2).13---19的基数词以—teen结尾。但13,15,18比较特殊，e.g. thirteen ,fourteen，fifteen, sixteen, seventeen, eighteen, nineteen（3）.20—90各整数的基数词都以-ty结尾，但，20,30,40,50,80较特殊。e.g.twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety.·译林牛津版(4)“几十几”要加连字符号“-”。如：97，ninety-seven。
(5)“几百零几”或者“几百几十几”在百位与十位之间加 and。（156；509）
如：156，one hundred and fifty-six；509，five hundred and nine。
(6)四位数或者四位数以上的基数词的拼写规律用逗号从右往左每三位加一个逗号，第一个逗号前为千(thousand)，第二个逗号前为百万(million)，第三个逗号前为(十亿)billion。(3610； 94295； 274350)
如：3,610＝three thousand six hundred and ten；94,295＝ninety-four thousand two hundred and ninety-five；274,350＝two hundred and seventy-four thousand ，three hundred and fifty。·译林牛津版2．用法
(1)表示数量。
(2)表示年代年份。
年代表达法：用“几十”的基数词的复数形式或者在年份后面加s可以用来表示岁数和年代。
如：in his fifties 在他五十多岁的时候；
in the1960s /in the 1960’s在20世纪60年代。
年份表示法：用基数词表示，四位数分两组来读。
e.g. 1949； nineteen forty-nine
1800； eighteen hundred
2003; two thousand and three
(3)表示房间，门牌 ，电话号码等。如：Class Five，Room One o (zero) five, the NO.11 bus.

three and a half hours
three hours and a half(3)表示时刻。表示时间有三种方法，
整点法：钟点数+o’clock, o’clock可以省略(8)。
e.g. 8：eight o’clock/ eight
顺读法（直接读法）：用于既有钟点数又有分钟数的时间，先读钟点数，再读分钟数(7:20)。
e.g. 7:20：seven twenty
倒读法：先读分钟数，再度钟点数。
0<分钟数 <30,用“分钟数+past+钟点数”表示，介词past为“过”，译为几点过几分(6:10)。
e.g. 6:10 ten past six
②分钟数=30，表示为“half past +钟点数” ，“钟点数+thirty” (12:30)
e.g. 12:30 half past twelve/ twelve thirty

③30<分钟数<60，表示为“（60-分钟数）+to+(钟点数+1)”，介词to为“差”，译为差几分到几点。(8:42)
e.g.8:42 eighteen to nine
④ 分钟数涉及到15 分钟时，一般用“a quarter(一刻钟)”表示。(10:15)
e.g 10:15 a quarter past ten
(5)确数和概数的表达。“基数词＋hundred/thousand/million/billion＋可数名词复数”表示准确数字，如：five hundred五百。“hundreds/thousands/millions/billions of＋名词”表示大约数字，数百(千，百万，十亿)，前面可用several，some，many等修饰。有S有of,没s有数词。
·译林牛津版(6)“another＋基数词＋名词的复数”或者“基数词＋more＋名词”表示在一定基础上再增加一定的数量。如：two more ＝ another two
Can you have another two cakes?你能再吃两块蛋糕吗？
(7)“基数词-可数名词单数（-形容词）”作定语修饰名词。
如：一个16岁的男孩: a sixteen-year-old boy
一座800米长的桥: an 800-metre-long bridge
女子800米接力: women's 800-metre race
步行十分钟: ten-minute walk＝ ten minutes’ walk 五星级酒店：five–star hotel
考点二：序数词1．构成
(1)“第一”、“第二”、“第三”分别是 first，second，third.（1,2,3特殊记）
(2)“第四”到“第十九”除了fifth，eighth，ninth，twelfth是特殊的拼写外，其余的都是在相应基数词后面加th构成。如：fourth.（8去t，9去e, v e要用f替）
(3)整十的序数词由相应的基数词变y为ie，再加th.如：thirty→thirtieth；fifty→fiftieth.（见y变成 i和e）
(4)有个位数的基数词只变化个位数。如：twenty-one→twenty-first；one hundred and one→one hundred and first.(若是遇到几十几，只变个位就可以)
(5)第一百hundredth；第一千thousandth；第一百万millionth.
·译林牛津版2．用法
(1)序数词表示顺序。在用序数词表示顺序的时候，要在序数词前加冠词the，序数词后的名词要用单数。如序数词前有形容词性物主代词，不再用the。
如：the fifth floor，on her ninth birthday
(2)序数词表示日期。日期可按日，月，年的顺序表示，也可按月，日，年的顺序表示。日期既可以用阿拉伯数词，也可写成缩略形式的序数词。如：2010.5.1读作May (1)the first，two thousand and ten。
(3)小数，分数的表示：
小数用point表示 ： 4.56 four point five six
百分数用percent表示：17% seventeen percent
分数表示为：
1/4 one fourth；3/6 three sixths
“分数＋名词”做主语时，谓语动词的单复数取决于名词，名词为复数，动词用复数；名词为单数或者不可数名词，动词用单数。·译林牛津版考点三：数词的其他用法1．表示倍数关系。表示“一倍”once；表示“两倍”twice；表示“三倍”或“三倍以上”的倍数用times。如：三次three times；十倍ten times。
2．数词前加every，表示“每一段时间或每隔一段时间”。如：every ten days/every ninth day每10天/每隔9天。
3．与数目有关的词语。如：second 秒；several几个；a few几个；a dozen一打；a score[sk?:] 二十。
4. 数词作主语时，谓语动词用单数形式。
e.g. Seven and two is nine.
5.序数词前加a/an表示“又一，再一”。
He has tired once and he wants to try a second time.
6.the first/second/third…+最高级
The Yellow River is the second longest river in China. DAD4.Two days isn’t enough for me to finish the work.
I need ____day.
A. a third B. the third C. the other D. other 5.She is _______, but she looks young.
A. in her fifty B. at her fifty C. in her fifties D. at her fifties6.Sam, it is the ____time in ____days that you’ve made the same mistake.
A. two, three B. second, three C. two; third D. second ;third
7.We’ll have a _____holiday. What about going to the West Lake?
A. three-day B. three days C. three-days D. three-days’8.These sets of rooms in this apartment building are suitable for
a ______. A. family of three
B. three- people family C. family of three people ACBAC9.You took up _____of an empty seat.
A. three-fourths B. third –fourths C. three-four D three-fourth10.Tuesday is the _______ day of a week in English.
?A. first ??B. fifth C. third D. fourth11.Which number is wrong? _______.
A. Ninety B. Ninteen C. Ninth D. Nineteenth13.There was no bus in that small town. We had a ____.
ten miles walk B. ten-mile walk
C. ten mile’s walk D. tenth mile walkACBB12. It’s 7:17 is read ________.
seven and seventeen B. seven seven
C. seven one seven D. seven seventeenD16.Three ________ five is eight.
plus [pl?s] B. minus ['main?s]
C. times D. divided by17.It took me ________ to get there.
A. two hours and a half B. two hours and half C. two hour and a half D. two hour and halfA14. On May ___, ____ people traveled round the country.
the first, millions B. the first, millions of
C. first, the millionth D. first, millionsB15.Their house is about _______ as big as ours.
A. times three B. three time C. time three D. three timesDA 20._______ are in the army.
A. Two their sons B. Their two sons
C. Their sons two D. Two sons their 19.The flood happened _______.
A. in the summer of 1998 B. in the summer of 1998s
C. in 1998 of the summer ?D. in 1998s of the summerA18.I’m so tired after ________ walk.
three hours B. three hours’
C. three hour’s D. three hourBBThank you!