2025年职教高考英语语法复习:数词课件(共24张PPT)

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2025年职教高考英语语法复习:数词课件(共24张PPT)

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(共24张PPT)
数词
基数词的表示方法
1.基数词1~12是独立的词,13~19都是以teen结尾的词。
(1)1~12要逐个记:
1---one   2---two 3---three    4---four
5---five   6----six 7---seven    8----eight
9----nine  10----ten 11----eleven  12----twelve
(2)13~19都以teen结尾,都是双重音:
13----thirteen 14----fourteen 15----fifteen 
16-----sixteen 17----seventeen 18-----eighteen
19----nineteen
2.基数词20~90整十位数都是以ty结尾。
20----twenty 30----thirty 40----forty
50----fifty 60----sixty 70----seventy
80----eighty 90----ninety
3 . 大数的表达
100 a hundred (一百) 1000 a thousand(一千)
1,000,000 a million(一百万)
1,000,000,000 a billion(十亿)
注:13~19的teen都是重读音,而20~90的ty 都是非重读音 节;/'ti n/为长音,而/t /为短音。
4.基数词21~99都是由“几十”和“几”合起来构成,
词中间加连字符(但音标里不加连字符),并分别重读。
21-----twenty one 34-----thirty four
45-----forty five 56------fifty six
78------seventy eight 99------ninety nine
5.基数词101~999,先说“几百”,再加“and”,再加末 两位数。
365---three hundred and sixty-five.
234---two hundred and thirty-four
502---five hundred and two
6.1,000以上的数,先从后向前数,每三位加“,”,
第一个“,”前为thousand(千);第二个“,”前为million
(百万);第三个“,”前为billion(十亿)。
4,007 85,626
402,407 14,002,102
8,946,724,631
其他数的表达
1.小数的读法:小数点前的基数词与前面所讲的基数词读法完全 相同,小数点读作“point”,小数点后只需将数字一一读出。
15.67 读作:fifteen point six seven
0.009 读作:zero point zero zero nine
2.百分数的读法:先读基数词,再读百分号“%”(读percent)。
5% 读作:five percent
0.5% 读作:zero point five percent
200% 读作:two hundred percent
3.年代的读法为两位、两位地读。整百后读hundred,整千
的后读thousand。
1937 年 读作:nineteen thirty seven
或: nineteen hundred and thirty seven
1900年 读作:nineteen hundred
1905年 读作:nineteen o five
  或: nineteen hundred and five
2000年 读作: two thousand
2020年 读作: twenty twenty
或: two thousand and twenty
4.表示公元后在年份前或后加AD,公元前一律在年份后加BC。
表几十年代时,前加 the,后加's或s。
from 200 BC to 500 AD(AD 500)
从公元前200年到公元后500年
in the 1960's/1960s 读作:nineteen sixties 二十世纪六十年代
5.年、月、日的英语顺序为“月,日,年”。
“日”用序数词读和写(写时也可用基数词);“日”读在“月” 前 时要加读“of”。
写作:July 7(th),2005  2005年7月7日
读作:July (the) seventh two thousand and five
写作:7th July,2005  2005年7月7日
或 : the seventh of July two thousand and five
6.一些数学公式的读法:
“加”用plus/and,“减”用minus,“乘”用times/multiplied by
“除”用divided by,“等于(=)”用is/equals。
3+5=8 读作:Three plus/and five is(equals) eight.
9-2=7 读作:Nine minus two is(equals) seven.
6×5=30 读作:Five times six is(equals)thirty.
读作:Six multiplied by five is(equals)thirty.
8÷4=2 读作:Eight divided by four is(equals) two.
基数词变序数词
基数词变序数词
th
one→first two→second three→third
一、二、三 单独记
four→fourth th要从四加起
eight→eighth nine→ninth 八去t,九去e
five→fifth twelve→twelfth ve要用f来代替
twenty→twentieth thirty→thirtieth 几十改y为ie
twenty-one→twenty-first thirty-four→thirty-fourth
若遇几十几,只变个位就可以
基变序有规律
Do some exercises
first
third
ninth
eightieth
1.He became a famous writer when he was ________.
A.in his fifty B.in his fifties
C.in fifty years old D.in fifties
2.—There is a wrong word in Line ________.
—Where
—In the ________ line.
A.Three;three B.Three;third
C.Third;three D.Third;third
【解析】第三行有两种表达方式:Line Three=the third line。
【答案】B
Do some exercises
3.—We'll be back for our school's ________ anniversary
ceremony.
—I see. That means you'll have a get-together with your
classmates in ________ years.
A.fifteen; seven B.fifteenth; seven
C.fifteen; seventh D.fifteenth; seventh
4.—You'll have ________ holiday next week. Where are you going
—I'm going to Hainan with my parents.
A.a seven day B.seven days
C.a seven day D.a seven days'
确数:百(hundred),千(thousand),百万(million)等词与具体
数字或a(n)连用时,词尾不可加“s”。(双无:无s无of)
I spent only two thousand yuan buying this computer.
概数:百(hundred),千(thousand),百万(million)等词与介词 of连用时,须用复数形式,表示不确定数目,其前不可与 数字连用。(双有:有s有of)
thousands of trees millions of books
确数:具体数字 + 概数词 + 名词复数 (双无:无s无of)
概数:概数词-s + of + 名词复数 (双有:有s有of)
概数词
1.—Have you seen the CCTV news on TV
—Yes, ________ children had a good festival on the
________ Children's Day.
A.millions of; sixty B.ten millions; sixtieth
C.millions of; sixtieth
2.________ trees have been planted near here, so the air is
fresh.
A.Two hundreds B.Two hundred
C.Hundred of D.Hundreds
Do some exercises
分数
分子用基数词,分母用序数词。(母序子基) 先读分子,再读分母。分子为one时可换用“a”。分子如果大于1,分母须用复数。(子大1,母复数)
1.分数的表达与读法。
1/2
a / one half
(而不是a second“一秒钟”)
1/3
one third
2/5
two fifths
1/4
a /one quarter
a / one fourth
3/4
three quarters
three fourths
three and a / one half
Four sevenths of the land is covered with trees。
七分之四的土地被树覆盖着。
2.当分数修饰的名词为单数可数名词或不可数名词时,其后谓语 动词用单数;当分数修饰的名词为可数名词复数时,其后谓语动 词用复数;
Two thirds of the students are girls in our class.
在我们班,三分之二的学生是女孩。
3.当分数后接名词时,如果分数表示的值大于1,名词用复数;
小于1,名词用单数。
hours
读作:one and a half hours
meters
读作:two and three fourths
meter
读作:four fifths meter
1.The number of the students in our school is about nine ________. ________ of them are boys.
A.hundred; Two thirds B.hundred; Two third
C.hundreds; Two thirds D.hundreds; Two third
2 . Nearly ________of the earth ______covered by sea.
A.three fourth; is B.three fourths; is
C.three fourth; are D.three fourths; are
Do some exercises
常用的时刻表达法有两种:
1.直接表述
1:15 9:05
2.借助于past和to的表述
当分钟数小于或等于30分钟时,用past。
当分钟数大于30分钟时,用to。
one fifteen
nine o five
11:10 12:15
几点过几分 分钟 + past + 小时
差几分几点 (60分钟-分钟) + to + (小时+1)
ten past eleven
a quarter past twelve
1:58 9:45
two to two
a quarter to ten
What time is it, please / What's the time, please
It is ......
seven fifteen
a quarter past seven
one o five
five past one
one forty
twenty to two
six thirty
half past six
six forty-five
a quarter to seven.
one o'clock
Have a rest!

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