2014届中考英语专题复习课件:数词(人教新目标版)(精)
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基数词
•序数词
基数词
21-99的两位数,在十位数和个位数之间加连字符构成2) 325—three hundred and twenty-five 101-999的三位数由hundred加and再加两位数或末位数
基数词hundred, thousand , million, billion表示确切数目时不能加s;
但是:在表示不确切数目时,要用复数形式,如: hundreds of / thousands of students
巧记基数词
基数词不难记,找清规律很容易,十二以内词各异;十三数到十九数去, 后加・teen莫忘记。
二十三十至九十,
整十之后有
要说“几十几”,
中间号别丢弃,
hundred是“一百”,
请你记住莫大意。
:、序数词
2、序数词
1)他跑步得了第一。
He was the first in the race.
序数词一般由基数词后+ th构成,前面一般加定冠词the
2)第二十
the twent ^eth 以ty结尾的基数词构成序数词时,先把y改成i,再加班h
3)第93 ninety-third
第]49 one hundred and forty-nintli “二十”以上的多位数,T位数用序数词,其余仍用基数词。
4)不规则的序数词有以下几个’
first, second, third,
fifth, eighth, ninth, twelfth
三、其他几种数词
1 又2/3
1/2one and
twZh
one (1)分数由基数词和序数词合成基数词/序数词1/3 a third
2/3 two thirds
分子大于1时,分母的序数词要用复数形式。
•小数
•点读point;“零”读o或zero;小数点后的
数字按个位基数词依次读出。
如:
• 0.62・
iero point six two
3 •百分数
•由percent表示:
■ 29% —
• 29 percent
四.数词在句中的作用
K主语豈
Two of them are teachers.
The third is green.
2、定语二
There are fifty students in our class.
They live on the third floor
3、宾语丄
Give me two.
Give me the second.
4>表语二
Pm eighteen now.
You are the first to speak at the meeting.
5>同位语豈
You may leave it to us two.
6、状语z
This room is one-sixth larger than that one.
五、时刻表示法
K钟点
1)10: 20—Hen twenty / 8: 36—weight thirty-six
正读法—按时间聂上的数字读;先读钟魚数,后读分钟数
2)表示几点过几分在半小时以内(包括半小时),用介词past,时钟数在介词的后面,采用倒读法。
如:
9: 30—► half imst nine
7: 05—> five past s©ven
3)表示几点差几分,用介词to,多用在半小时以上(不包括半小时)”也用俺I读法。
如金
8: 50—► ten to nine
5 45—»a quarter to twelve
4)表示整点
8: 00—>eigh 1(05clock)
5)表示在某个钟点,用介词联。
如:
They begin to work at half past seven・
六、时间表示法
2、日期
1)年代用基数词,在某年要用介词in。
如:
He was born in 1983. (1983读成nineteen eighty-three)
2)月份首字母要大写,在某月也用介词in,如果有年代出现, 在月份名后加年代,中间用逗号。
如^
It happened in January, 1999・(这事发生在1999年1 月。
)3)日期用序数词(序数词前加the),在某日用介词on。
如:on the first ;on the eighteenth
美国说法^顺序为先月后日。
如豈
May 4(th)(五月四日-- 读成May the fourth)
4)年月日同时出现时,年代位于最后,其前加逗号。
如:Mary was born on January 1st, 1990・
5)表示“在几十年代”用in + the +逢十的数词复数。
如:in the 1990s / h nineties
牛刀小试
L Five hundred yuan a month _____ enough to live on.
a. is
b. are
c. is being d* has been
2.____ of the buildings were ruined*
a. Three fourth
b. Three four
c. Three・fouilhs d> Three-four
3.The Olympic Games are held_____ •
a・ every four years b. every four year
c< every fourth years d. every four-years
4・ As he is not in good health, he goes to his factory only ____
_________________________________________________ j ust to learn something about the production< a・ once a week b. one week
c. one time a week d> one a week
Thank you!。