专题06 数词---备考2023中考英语二轮高频考点剖析 课件（共28张PPT）

(共28张PPT)
专题六　数词
专题 六 数词
命题点解读
　　　　　　基数词
1．基数词可用作主语、宾语、表语、定语或同位语。
用法 例句
主语 Three of them are students. 他们中有3人是学生。
宾语 Give him three. 给他三个。
表语 He is only ten. 他只有10岁。
定语 There are twenty teachers in the office. 办公室里有20个老师。
同位语 The desk is for you two. 这张桌子是供你们两个使用的。
2.基数词的用法
用法 示例
“基数词＋名词(＋形容词)”合成的定语中，名词用单数，基数词、名词和形容词之间加连字符。 a 100-meter-long bridge一座100米长的桥
基数词与表示时间、距离、重量、金钱、度量等词连用的数词作主语时，常看作一个整体，谓语用单数。 Twenty years is quite a long time.
20年是很长的一段时间。
用法 示例
“another ＋基数词＋名词复数”＝“基数词＋ more ＋名词复数”，表示在一定基础上增加一定的数量。 We need another five candles. ＝ We need five more candles.我们还需要五根蜡烛。
“基数词＋度量单位＋形容词(tall/long/wide/deep/high/heavy/…)”表示计量。 The room is about twenty meters wide.
这个房间大约二十米宽。
用法 示例
基数词hundred，thousand，million, billion前有具体数字或several修饰时不能用其复数形式；当它们表示概数时，需用复数且与of连用。 two thousand students两千名学生
thousands of students数千名学生
A
根据括号内所给的中文意思完成短文(不可用数字代替英语)。
First, I'd like to ask a question, how much do you know about pandas I want to tell you what I saw at the Chengdu Research Base. At 1._______________ (八点) in the morning, panda keepers began preparing milk for the baby pandas as breakfast. They took good care of the baby pandas. But in the past 2.____________ (二十年), the number of pandas has dropped quickly. Scientists say there are now fewer than 3.______________
eight (o'clock)
twenty years
two thousand
(两千只) pandas living in the forest, another 4._____________ (三百只) or so live in zoos or research centers in China and other countries. Pandas do not have many babies, maybe only one 5._______________ (每两年), and the babies often die of illnesses and do not live very long. What's more, adult pandas spend more than 6.____________ (十二小时) a day eating about 7.___ (十) kilos of bamboo, but we cut down bamboo forests now and they don't have enough to eat.
What should we do to protect pandas Let's think about it.
three hundred
every two years
twelve hours
ten
B
8．_______________ teenagers went to the university to listen to the ______________ speech.
数百名青少年去大学听了那个120分钟的演讲。
9．_________________ quite a long time.
两个月是相当长的时间。
10．Can you have__________________________________？
你能再吃两个鸡蛋吗？
Hundreds of
120－minute
Two months is
another two eggs/two more eggs
11．The classroom is_______________________，6 meters wide and _________________．
教室长9米，宽6米，高3米。)
9 meters long
3 meters high
　　　　　　序数词
1．序数词可用作主语、宾语、表语、定语或状语。
用法 例句 基数词变序数词口诀
主语 The second is the better one of the two. 两个中比较好的是第二个。 基变序，有规律，词尾加上-th。
一，二，三，特殊记，词尾字母t，d，d。
八去t，九去e，ve要用f替。
整十基数变序数，ty变成tie。
若是碰到几十几，十位基数个位序。
表语 I am always the first to get there. 我总是第一个到那儿。 宾语 He likes the third.他喜欢第三个。 定语 The second room is yours.第二个房间是你的。 状语 Safety must come first.安全必须放在第一位。 2.序数词的用法
用法 例句
序数词表示事物的顺序，常与定冠词the连用，但当前面有形容词性物主代词、名词所有格等限定词修饰时，不加the。 It is my first time to come here.
这是我第一次来这里。
序数词前面也可以加不定冠词a或an，表示“又一，再一”，内含顺序性。 We've talked about it twice. Must we try it a third time？我们已经讨论过两次了。我们必须再尝试(讨论)一次吗？
12.You'd better have a __________ (two) thought before you make a decision, or you will regret it later.
13．Mum, the beautiful card I made last night is just for your ___________ (forty) birthday.
14．He chose the __________ floor because he thought _________ was a lucky number for him. (eight)
15．The __________ (four) is what I really need.
16．Mother was ______ (I) first teacher in my life.
second
fortieth
eighth
eight
fourth
my
　　　　　　数词在生活中的应用
1．编号与电话号码的表达
(1)编号：在英语中可用基数词和序数词表示。基数词位于名词之后，首字母要大写；序数词在名词之前，并加定冠词。如：
第一课　Lesson One＝the first lesson
3路公共汽车　Bus No.3＝the No.3 bus
302房间　Room 302(读作room three O two)
第457页　Page 457
(2)电话号码：用基数词，可单个读，两个重复的数字也可读作“double＋数字”。如：
38556033读作three eight five five (double five)six O(zero)three three (double three)
2．世纪、年代、年份、日期的表达
(1)世纪用序数词表达，前面用定冠词the。如：
the 20th century　20世纪
(2)年代的表达方式通常为“in＋the＋数词＋s”。如：
in the 1980s　在20世纪80年代
(3)年份用基数词。四位数年份常分两组来读。如：
1999：nineteen ninety-nine
1900：nineteen hundred
2000：two thousand
1905：nineteen O five
(4)日期用序数词，读时前面加定冠词the。
①“在某日”，前面用介词on。如：
1998年6月8日，写作(on)June 8，1998; (on)June 8th，1998；(on) 8 June，1998；(on) 8th June，1998；读作(on) June the eighth，nineteen ninety-eight或(on) the eighth of June，nineteen ninety-eight。
②“在某年某月”，前面用介词in。如：
1930年3月，写作(in)March，1930；读作(in)March, nineteen thirty。
③“在某日的上午(下午/晚上)”，前面用介词on。如：
7月29日早上，写作(on) the morning of July 29；读作(on) the morning of July the twenty-ninth。
3．时刻的表达
(1)整点：基数词加o'clock。如：
5点钟 five (o'clock)
(2)顺读法：“钟点＋分钟”。如：
7：05 seven O five
7：30 seven thirty
(3)逆读法：
①30分内：“几点过几分”用“分钟数＋past＋已过点钟数”。如：
7：05 five (minutes)past seven
②超过30分：“差几分到几点”为“差的分钟数＋to＋下个钟点数”。如：
7：45 a quarter to eight
7：50 ten (minutes)to eight
③半小时用“half”，一刻钟用quarter。如：
7：15 a quarter past seven
7：30 half past seven
4．分数、小数、百分数的表达
(1)分数：分子用基数词，分母用序数词，分子大于“1”，分母则加“s”。一般情况下，单词之间可用连字符连接，也可不用。分数作主语时，谓语动词与分数所表示的名词的数一致。如：
1/3 　one third＝one-third
2/3 　two thirds＝two-thirds
1/2 　a/one half
1/4 　one fourth＝a/one quarter
3/4 　three fourths＝three－fourths＝three quarters
(2)小数：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。如：
15．67读作fifteen point six seven
0.009读作zero point zero zero nine
(3)百分数：先读基数词，再读百分号“%”(读作percent)。如：
5%读作five percent
0.5%读作zero point five percent
200%读作two hundred percent
5．年龄的表达
(1)年龄可直接用阿拉伯数字表示，一般场合下多用英语单词。如：
He is twenty (years old)．他二十岁。
(2)at the age of后加基数词，意为“在……岁的时候”，后面不能再加years old。如：
He passed on at the age of 72.
他72岁时去世了。
(3)表示在“某人几十多岁”时用“in one's＋整十数的复数形式”。如：
When he was in his twenties, he became a very famous poet.
他在二十多岁的时候成为了一名非常有名的诗人。
根据括号内所给的中文意思完成短文(不可用数字代替英语)。
Mr. Brown is a teacher in a middle school. In his 17._______ (四十多岁), he went to Russia. He has lived in Russia for about 18.______________ (一年半). In the school, the number of students is about 19.______________ (三千). And about 20.________________ (五分之三) of students are boys. A number of boys like playing basketball. Mike is a 21._________________ (十五岁的) student from 22.___________________________ (三年级四班). He often plays basketball 23.__________________ (一周两次).
forties
one and a half years
three thousand
three fifths
fifteen－year－old
Class Four, Grade Three
twice a week
The 24._________ (第二十届) World Basketball Championship began. There were 25.____________ (成千上万的) people watching the game. But Mike didn't go to watch it because he had to stay in Room 305 with his classmates to study English.
twentieth
thousands of
Thank you