内容正文:
专题三 数词
2025重庆英语(人教版)
《学本课堂》
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基数词
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表示数目或者数量多少的词叫基数词。其常见用法如下:
1.表示日期、时刻、顺序和编号、电话号码和年代
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2.年龄的表达
(1)用阿拉伯数字或基数词表示。如:15/fifteen years old十五岁
(2)at the age of后加基数词,意为“在……岁时”,后面不再加years old。如:at the age of eighteen在十八岁时
(3)“in one’s+整十数的复数形式”表示“在某人几十多岁时”。如:in his thirties在他三十多岁时
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(1)“基数词+连字符+名词”(=形容词)作定语,名词用单数形式。如:
a ten⁃minute walk=ten minutes’ walk步行十分钟的路程
(2)another+基数词+名词复数=基数词+more+名词复数。如:
another three boys=three more boys另外三个男生
(3)数词与表示时间、距离、重量、金钱、度量等的词连用作主语,在主系表结构中常被看作是一个整体,谓语动词用单数。如:
Ten dollars is enough to buy the book.十美元足够买这本书了。
要点提醒
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(4)分数的分子用基数词,分母用序数词,分子大于1,分母加“⁃s”;分数作主语时,谓语动词与分数所修饰的名词的数保持一致。如:two fifths五分之二
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序数词
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表示顺序先后的词叫序数词。其常见用法如下:
1.表示顺序时,序数词前必须加the,其后接单数名词。
2.序数词前若有形容词性物主代词、名词所有格等限定词,则不加the。如:
It’s my first time to visit Chongqing.这是我第一次来重庆旅游。
3.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。如:a second time又一次
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4.序数词与基数词连用时,通常是序数词在前面。如:the first three pages of the book这本书的前三页
5.序数词修饰谓语动词时,定冠词the省略。如:
The team ranks first in our school.该队在我们学校排名第一。
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概数词
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1.表示确切的数字(具体数字+概数词+名词复数)
hundred, thousand, million等词与具体的数字one, two …或several, some, many等连用时,其后不加⁃s,也不接of。如:five hundred people 五百人
2.表示不确切的数字(概数词⁃s+of+名词复数)
hundred, thousand, million等词与of连用时,其后要加⁃s,但前面不能再加具体的数字。如:thousands of factories成千上万家工厂
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03
一、单项选择。
( )1.(2023·凉山)My grandma told me the number “9” stands for “Long lasting”. So I chose the floor to live on.
A.nine B.eighth C.ninth
( )2.(2023·武威改编)—What’s thirty and ten?
—It’s .
A.forty B.fifty C.seventy
( )3.(2023·怀化)People plant trees on Tree⁃Planting Day every year.
A.hundred B.hundreds of C.hundreds
C
A
B
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( )4.(2023·滨州改编)The number of the fans going to this concert is about three . And of them are girls.
A.thousand;two third
B.thousands;two third
C.thousand;two thirds
( )5.(2024·白银改编)June is the month of a year.
A.fifth B.sixth C.seventh
C
B
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( )6.(2024·龙东)Two dollars is enough to buy the bike, but I can’t afford it.
A.hundreds;to buy
B.hundreds;buy
C.hundred;to buy
( )7.(2024·自贡)—There is going to be the Art Festival next week.
—Great. We can enjoy some beautiful paintings again.
A.two B.first C.second
C
C
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( )8.(2024·达州)—Why is Jenny so happy?
—Because today is her wedding anniversary.
A.fifth B.the fifth C.five
( )9.(2024·东营改编)I am child in my family. I have an elder brother and a younger sister.
A.the third B.the first C.the second
A
C
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( )10.(2024·呼和浩特改编)— of the students in our class have passed the exam.
—Oh, that means 20% of them should work harder.
A.One fifth B.Four five C.Four fifths
( )11.(2024·绥化)An boy, Li Wen, works hard and gets good grades in his final exam.
A.eighteen⁃year⁃olds
B.eighteen⁃year⁃old
C.eighteen years old
C
B
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( )12.(2024·牡丹江)There are solar terms(节气) in a year. Lichun is the first one.
A.twenty⁃four B.twenty⁃fourth C.the twenty⁃fourth
( )13.(2024·凉山)—Look at the triangle on the right,if AC=3,BC=4,how long is AB?
—It’s .
A.five
B.seven
C.twelve
A
A
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( )14.—Which is the biggest number of the three?
— .
A.One third B.A half C.A quarter
( )15.As one of the most popular tourist cities, Luoyang attracts ______ tourists every day.
A.five millions
B.millions of
C.five million of
B
B
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二、语法选择。
China, which was founded in 1 , is becoming more and more powerful. Big changes have taken place in science and technology in recent years. 2 have helped China catch up with other developed countries or even lead in some fields. China is between the world’s research leaders in chemistry, science and physics.
1.A.1949 B.1949s C.1949’s
2.A.This B.These C.Those
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Take hybrid rice(杂交水稻) as 3 example first. Chinese scientist Yuan Longping developed the first hybrid rice 4 , and it has been feeding the country since then. By the end of 2019, farmers in more than 40 countries have planted more than 7 5 hectares(公顷) of the crop. What great contribution 6 made to the whole world!
3.A.a B.an C.the
4.A.in the 1970 B.in the 1970s C.in the 1970’s
5.A.million B.millions C.millions of
6.A.his B.him C.he
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He is one of the greatest 7 who makes the world become better and better! Next, the Jiaolong, 8 manned(载人的) deep⁃sea research submersible(潜水器), went into service in 2010. It made China the 9 country, after the United States, Russia, France and 10 , to develop deep⁃sea exploration technology.
7.A.man B.mans C.men
8.A.China’s first B.the China’s first C.China first
9.A.five B.fifth C.fifteen
10.A.Japanese B.Japan C.Japan’s
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However, China needs to work harder in key technological fields such as microchip(微芯片) development than before. The government needs to offer more support in many areas to encourage greater development.
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本讲内容结束
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