初中英语语法知识—数词的单元汇编
数词总结归纳
数词总结归纳数词(numerals)是表示数量的词语,用于对人、事、物进行计数和表达数量关系。
数词在语言中具有重要的作用,无论是日常生活还是学术领域,我们都离不开数词的使用。
本文将对数词进行总结归纳,以便更好地理解和运用数词。
一、基数词(cardinal numerals)基数词是用来具体表示数目大小的词语,从1到无穷大。
比如:- 1(one)- 2(two)- 3(three)- ...- 10(ten)- ...- 100(one hundred)- 1,000(one thousand)- ...基数词在日常生活中最常见,用于计数、记数和表示具体的数量。
二、序数词(ordinal numerals)序数词是用来表示次序、顺序的词语,表示人、事、物在某种顺序中的位置。
比如:- 第一(the first)- 第二(the second)- 第三(the third)- ...- 第十(the tenth)- ...- 第一百(the one hundredth)- ...序数词在日常生活和学术领域中都有广泛的应用,用于表示排名、顺序和次序。
三、分数词(fractional numerals)分数词是用来表示一个数量相对于整体数量的部分的词语,由分子和分母组成。
比如:- 一半(one half)- 三分之一(one third)- 四分之一(one quarter)- ...- 五分之四(four fifths)- ...分数词常用于表示比例、份额、比率等。
四、百分数词(percentage numerals)百分数词是用来表示一个数量相对于整体数量的百分比的词语。
比如:- 百分之十(ten percent)- 百分之五十(fifty percent)- 百分之九十九点九(ninety-nine point nine percent)- ...百分数词在统计分析、社会调查、市场研究等领域中经常使用。
新初中英语语法知识—数词的分类汇编含解析
一、选择题1.—We’ll be back for our school’s ___________ anniversary(周年) ceremony.—I see. That means you’ll have a get-together with your classmates in ___________ years. A.twelve; seven B.twelfth; seven C.twelve; seventh D.twelfth; seventh 2.I think we've learnt English words so far.A.hundred of B.nine hundreds C.hundreds of3.The year “1999” should be read “The year_______.”A.nineteen and ninety-nine B.nineteen ninety-nineC.one thousand nine hundred ninety-nine D.nineteen hundred and ninety-nine4.The old man began to learn to drive a car at the age of _______.A.sixty B.the sixtieth C.sixty years old D.sixties5.– Good news. My good friend has just moved to my flat. He lives on the floor.– We are neighbors. We live on the 19th floor. He lives one floor above us.A.twelve B.twelfth C.twenty D.twentieth 6.—How do your students improve their English writing?—Well, about ______________ of the students like keeping diaries in English in our class. A.two fifth B.two fifths C.second five D.two five7.﹣Welcome to Los Angeles.Have you ever been here?﹣Sure. I visited this city three years ago so this is my _________ time here.A.first B.second C.third8.—______________ do you read English newspaper?—At least ______________ a week.A.How long;one B.How often;twiceC.How many;once D.How much;third9.It is reported that people throw ______________ plastic bags along this street every day. A.three hundreds of B.three hundreds C.hundreds of D.hundred of 10.There are _______ people in the picture, and the ______ one from the left is me. A.eleven; five B.eleventh; fifth C.eleven; fifth11.__________ of his time __________ been spent on studies every day.A.Three fourths;has B.Three fourths;haveC.Third fours;has D.Thirds four;have12.In our city, about ________ of people can get _________ yuan a month.A.three quarters; two thousands B.three quarter; two thousandC.three quarters; two thousand D.three quarter; two thousands13.— They will need __________ volunteers for 2014 International Horticulture Exposition (国际园艺博览会) in Qingdao.—Let’s go and join them.A.thousand of B.thousands of C.three thousand of D.three thousands14.A year is divided into ______ months. September is the _____ month of the year. A.twelve, ninth B.twelve, nineth C.twelfth, ninth D.twelfth, nineth 15.______of the students in our class ______ going to the summer camp in Beijing next week. A.Two-fifths, are B.Second-fifths, areC.Two-fifths, is D.Second-fifths, is16.Two students to the opening ceremony last Friday.A.hundreds, were invited B.hundred , were invited C.hundreds of, invited 17.—What do you think of the environment here?—Wonderful! of the land is covered with trees and grass.A.Two fifths B.Two fifth C.Second fifths D.Second fifth 18.________ runners took part in the half marathon(半程马拉松) in Haikou in April. A.Hundred B.Hundreds C.Hundreds of19.—How many people have come to Beijing for the Olympic Games in 2008?—It’s hard to say. _______ people, I think.A.Million of B.Millions of C.Two millions of D.Two million of 20.Today is my little sister’s ______ birthday. My family will get together to celebrate it. A.nine B.ninth C.the ninth D.the nine 21.Every day, _______ people wait to watch the raising of the national flag at Tian’anmen Square.A.thousands B.two thousands C.thousand of D.thousands of 22.The number “23,456” can be read as “________”.A.twenty-three thousand, four hundred and fifty-sixB.twenty-three thousand and four hundred fifty-sixC.two three thousand and four five sixD.two three thousand, four and five six23.---Song of Youth is a very popular movie these days.---That’s true. people, especially the young, enjoy watching it.A.Millions of B.Two millions C.Two millions of24.of people enjoy the TV play You Come From the Star. And 70% of the music in it very original.A.Three fifth, is B.Three fifth, are C.Three fifths, are D.Three fifths, is 25.Leonardo was born in ________ in Los Angeles. Last year, he won his ________ Oscar in the 88th Academy Awards (奥斯卡奖).A.1980;first B.the 1980s;the firstC.1980s;first D.the 1980s;first【参考答案】***试卷处理标记,请不要删除1.B解析:B【解析】试题分析:句意:我们将回来参加学校的12周年庆。
初中英语数词知识点总结
初中英语数词知识点总结一、数词的分类数词在英语中可以分为两类:基数词和序数词。
基数词用于表示数量,而序数词用于表示顺序。
1. 基数词(Cardinal Numbers)基数词用于表示数量,如 one, two, three 等。
在英语中,基数词的顺序和中文相似,从1开始,依次增加。
以下是基数词的常见形式:- 1到10:one, two, three, four, five, six, seven, eight, nine, ten- 11到19:eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen- 20到90:twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety,以及相应的-ty结尾(如 twenty-one, thirty-two 等)- 100及其倍数:one hundred, two hundred, three hundred 等,以及千(thousand)、百万(million)、十亿(billion)等2. 序数词(Ordinal Numbers)序数词用于表示顺序,通常在基数词前加the,或者在基数词后加-th来构成。
以下是序数词的常见形式:- 1到10:first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth- 11到19:eleventh, twelfth, thirteenth, fourteenth, fifteenth, sixteenth, seventeenth, eighteenth, nineteenth- 20到90:twentieth, thirtieth, fortieth, fiftieth, sixtieth,seventieth, eightieth, ninetieth,以及相应的-ty结尾(如twenty-first, thirty-second 等)- 100及其倍数:hundredth, thousandth, millionth, billionth 等二、数词的用法数词在句子中可以用作主语、宾语、定语和表语等。
数词知识点的归纳总结
数词知识点的归纳总结一、基数词1. 基数词表示几个或多少,是最基本的数量词。
如:one、two、three、four、fifty、one hundred等。
2. 基数词的用法A. 基数词可以用来表示具体数量,如:There are five students in the classroom.(教室里有五个学生。
)B. 基数词也可以用来表示顺序,如:I am the first one to arrive.(我是第一个到达的。
)C. 基数词后面可以接可数名词复数形式,表示具体数量,如:There are three apples onthe table.(桌子上有三个苹果。
)D. 基数词后面还可以接不可数名词,表示数量,如:I drink two cups of tea every day.(我每天喝两杯茶。
)3. 基数词的变化A. 基数词的变化规则(1)一般情况下,基数词的变化只有单数和复数的区别,单数形式和复数形式相同,如:three books(三本书)。
(2)当基数词修饰可数名词时,前面要加定冠词或其他限定词,如:The three boys are playing football.(那三个男孩正在踢足球。
)B. 基数词的特殊变化(1)one的复数形式是ones,通常作主语或宾语时用于强调,如:These are good apples, and those are bad ones.(这些是好苹果,那些是坏苹果。
)(2)twenty、thirty等基数词前面可以加连字符连接后面的数字,如:twenty-three(二十三)。
二、序数词1. 序数词表示顺序或次序,是基数词在整体中的顺序。
如:first、second、third、tenth 等。
2. 序数词的用法A. 序数词可以表示顺序或次序,如:I am the first one to arrive.(我是第一个到达的。
)B. 序数词还可以用来表示日期或年龄,如:Today is the fifteenth of October.(今天是十月十五日。
初中英语语法知识—数词的单元汇编及答案解析(3)
一、选择题1.In China, about ___________ of people live in the country.A.three fifth B.third fifthC.three fifths D.three fives2.In our city, about ________ of people can get _________ yuan a month.A.three quarters; two thousands B.three quarter; two thousandC.three quarters; two thousand D.three quarter; two thousands3.The year “1999” should be read “The year_______.”A.nineteen and ninety-nine B.nineteen ninety-nineC.one thousand nine hundred ninety-nine D.nineteen hundred and ninety-nine 4.—Zhapo has a really beautiful beach, doesn't it?—Yes, ________ travelers like to come here for a visit.A.thousands of B.thousand of C.thousand D.three thousands 5.—______________ do you read English newspaper?—At least ______________ a week.A.How long;one B.How often;twiceC.How many;once D.How much;third6.The shoe factory is only about ______ walk from our school.A.half an hour’s B.half and an hour’s C.half an hours’7.---I am going to take this summer holiday in Taiwan.---Oh, really? Taiwan is ______ a beautiful island that ______ people in Guangdong go to visit it every year.A.so; thousands B.so; thousands ofC.such; many thousand D.such; thousands of8.Sally, this is ___ time you’ve asked me about that matter. What’s wrong with you? A.three B.the three C.the third9.________of the students in our class________ going to the summer camp in Beijing next week.A.Two fifths; are B.Second fifths; are C.Two fifths; is D.Two fifth; are 10.________ trees have been planted near here, so the air is very fresh.A.Two hundreds B.Hundred ofC.Hundreds of D.Hundreds11.—How old is your grandpa? He looks energetic.—Yeah, it’s hard to imagine he is already in his________ .A.seventies B.seventy C.seventieth D.seventieths 12.---How often does the boy play sports?---__________A.Once a week B.Four hours C.In an hour D.At 7pm13.________ runners took part in the half marathon(半程马拉松) in Haikou in April. A.Hundred B.Hundreds C.Hundreds of14.______of the teachers in our school is 118, ______ of them are women teachers.A.The number; first fourth B.The number; one fourthC.A number; one second D.A number; three quarters15.There are ________ teachers in our school, ________of them are women teachers. A.two hundreds ; three fourth B.two hundred ; three fourthsC.two hundred; three forths D.two hundreds; three fourths16.Every day, _______ people wait to watch the raising of the national flag at Tian’anmen Square.A.thousands B.two thousands C.thousand of D.thousands of 17.—Good news! We will have a ________ holiday.—I’ve heard of it. But it’s coming in ________.A.three days; three days’ time B.three days’; three days’C.three-day; three days D.three days; three-day time18.Li Ming is an active boy student and he always tries his best to make his life colorful though he is in Grade 9. The table below shows that he spends ________ minutes on after-class activities every week.A.250 B.850 C.60019.Sally, this is _____ time you’ve asked me about that matter. What’s wrong with you? A.three B.the three C.third D.the third 20.There are about people in the village.A.eight hundred B.eight hundredsC.eight hundred of D.eight hundreds of21.The number “23,456” can be read as “________”.A.twenty-three thousand, four hundred and fifty-sixB.twenty-three thousand and four hundred fifty-sixC.two three thousand and four five sixD.two three thousand, four and five six22.—Ann, when do you plan to go for your ten-day holiday?—Next month. I’m going away on the and coming back on the 12th.A.first B.second C.third D.fourth23.visitors came to take photos of Hongyadong during the vacation.A.Thousand B.Thousand of C.Thousands D.Thousands of 24.of people enjoy the TV play You Come From the Star. And 70% of the music in it very original.A.Three fifth, is B.Three fifth, are C.Three fifths, are D.Three fifths, is 25.---If your parents wanted to have a ______ child, would you agree?---Of course. But they should make it in _____ yeas’ time.A.second; second B.two; two C.second; two D.two;second【参考答案】***试卷处理标记,请不要删除一、选择题1.C解析:C【解析】句意:在中国,约五分之三的人生活在农村。
初中数词知识点总结
一、数词的概念表示人或事物的数目和顺序的词是数词。
如:eight 8 nineteen 19 sixty-six 66first 第一tenth 第十twenty-seventh 第二十七二、数词的分类数词分为基数词和序数词。
1.基数词(1)1-19的基数词one two three four five six seven eight nine teneleven twelve thirteen fourteen fifteen sixteenseventeen eighteen nineteen(2)20-90的整十数基数词twenty thirty forty fifty sixty seventy eighty ninety(3)非整十数基数词(十位和个位数之间用连字符号“-”) Twenty-three forty-four ninety-nine(4)101-999的基数词①整百基数词f ive hundred 500 eight hundred 800②非整百基数词one hundred and one 101three hundred and sixty-five 365(5)1000以上的基数词f ive thousand 5,000nine thousand nine hundred and ninety-nine 9,999thirty thousand 30,000(6)年代的读法:每两位数读一读1997nineteen ninety-seven2010 two thousand and ten请读一读下面的句子There were 450 sheep and 83 cows in the farm in 2005.读作:There were four hundred and fifty sheep andeighty-three cows in the farm in two thousand and five.2)英语用千、百万等单位计数,大数字从右向左看, 每隔三位划一逗号,倒数第一个逗号之前要用thousand,倒数第二个逗号之前要用million,倒数第三的逗号之前要用billion表示。
(完整版)数词知识点
(完整版)数词知识点一、定义表示数量多少的叫基数词,如:one,two.表示顺序的数词叫作序数词,如:first,second.二、数词常考点:1.三位数的基数词,百位与十位/个位之间加and。
千位数和百位数之间不加and.101 one hundred and one840 eight hundred and forty2.约数(s与of共存亡)几十个/许多:dozens of成百上千:hundreds of成千上万:thousands of3.年用基数词表示,两位一读,介词用in;日用序数词表示,介词用on。
19,99 nineteen ninety-nine19,49年10月1日可写作:October(the)first,nineteen forty-nine (月-日,年)the first of October,nineteen forty-nine (日-月,年)4.分数表示法。
分子用基数词,分母用序数词;分子大于1时,分母加s1/4 one-fourth/a(one)quarter3/4 three-fourths/three quarters分数修饰名词时,用of短语。
1/3的老师:one third of teachers3/7的男孩:three sevenths of boys5.时刻的表示方法(介词用at)。
①顺读法:先时后分, “几点几分"。
9:30 ninethirt6:21 six twenty-one②逆读法:先分后时。
A.表示“几点过几分”,半小时以内,介词用past,即表示为“分钟数+past+钟点数”。
10:10 tenpastte8:20 twenty past eightB.表示“几点差几分”,半小时以上,介词用to,即表示为“60减原分钟+to+下一个钟点数”。
9:50 tentote7:40 twenty to eight。
数词知识点的用法总结
数词知识点的用法总结一、基本概念数词是表示数量的词语,它用来表示人或事物的数量、顺序、时间、年龄等。
数词可以分为基数词和序数词两种。
基数词用来表示数目的大小,如:一、二、三、四、五……序数词用来表示次序或顺序,如:第一、第二、第三、第四、第五……二、基数词的用法1. 表示具体的数目例:三个苹果、四只鸟、五张纸等。
2. 表示时间例:八点钟、九月份、十年前等。
3. 表示顺序例:第一名、第二次、第三组等。
4. 表示年龄例:十岁、二十五岁、三十八岁等。
5. 表示价格例:一元、两块钱、五十块等。
6. 表示温度例:零度、十度、二十度等。
7. 表示比例例:一半、两三成、三分之一等。
8. 辅助表达例:一个人、两个小时、三个月等。
三、序数词的用法1. 表示顺序例:第一位、第二名、第三段等。
2. 表示时期例:第一季度、第二天、第三年等。
3. 表示排列例:第一行、第二列、第三层等。
4. 表示顺序分类例:第一类、第二种、第三种等。
5. 表示时间例:第一次、第二回、第三场等。
6. 表示事件例:第一次世界大战、第二次革命等。
四、数词的变化1. 基数词和序数词的转换在特定的语境中,基数词可以转换为序数词,反之亦然。
例:第十二(12)→ 十二(12)2. 数词的复数形式当数词与名词构成复合结构时,数词的复数形式一般在名词上加-s,或变化为复数形式的数词。
3. 数词的形容词形式有些数词可以用作形容词,修饰名词或短语。
例:三只猫、五个人、二双鞋等。
五、数词的常见搭配1. 一、二、三例:一朵花、两个苹果、三个小时等。
2. 十、百、千例:十分鐘、一百米、一千元等。
3. 亿、万例:三亿人、一万年、两万块等。
4. 个、只、位例:三个人、五只鸟、一位老师等。
5. 双、副、组例:一双袜子、两副眼镜、三组题目等。
六、数词的注意事项1. 数词的词序一般情况下,数量词在名词前修饰名词,修饰名词短语时,数量词放在名词后。
2. 数词的连用数词与计量单位连用时,一般先写数词,再写计量单位。
新初中英语语法知识—数词的全集汇编含解析(2)
一、选择题1.Thanks to Project Hope, ________ children have better lives.A.thousands of B.thousands C.thousand of2.The year “1999” should be read “The year_______.”A.nineteen and ninety-nine B.nineteen ninety-nineC.one thousand nine hundred ninety-nine D.nineteen hundred and ninety-nine 3.—Zhapo has a really beautiful beach, doesn't it?—Yes, ________ travelers like to come here for a visit.A.thousands of B.thousand of C.thousand D.three thousands 4.—How do your students improve their English writing?—Well, about ______________ of the students like keeping diaries in English in our class. A.two fifth B.two fifths C.second five D.two five 5.——What should we do now, Mr.Li?——Please turn to Page_____and look at the_____picture.A.Twelfth;fifth B.Twelve; fifthC.Twelve;five D.Twelfth;five6.—______________ do you read English newspaper?—At least ______________ a week.A.How long;one B.How often;twiceC.How many;once D.How much;third7.Harry’s mom looks young and beautiful. It’s hard to imagine s he is already _________ her _________.A.in; fifty B.in; fifties C.on; fifties D.in; fiftieth8.---I am going to take this summer holiday in Taiwan.---Oh, really? Taiwan is ______ a beautiful island that ______ people in Guangdong go to visit it every year.A.so; thousands B.so; thousands ofC.such; many thousand D.such; thousands of9.I’ve told him of that ______, but he always forget it.A.a hundred time B.hundred timesC.hundred of times D.hundreds of times10.—When is Mother’s Day?—It’s on ___________ Sunday in May.A.two B.the second C.twelve D.the twelfth 11.______of the students in our class ______ going to the summer camp in Beijing next week. A.Two-fifths, are B.Second-fifths, areC.Two-fifths, is D.Second-fifths, is12.I think we've learnt English words so far.A.hundred of B.nine hundreds C.hundreds of13.—What do you think of the environment here?—Wonderful! of the land is covered with trees and grass.A.Two fifths B.Two fifth C.Second fifths D.Second fifth 14.______of the teachers in our school is 118, ______ of them are women teachers.A.The number; first fourth B.The number; one fourthC.A number; one second D.A number; three quarters15.Today is my little sister’s ______ birthday. My family will get together to celebra te it. A.nine B.ninth C.the ninth D.the nine 16.There are ________ teachers in our school, ________of them are women teachers. A.two hundreds ; three fourth B.two hundred ; three fourthsC.two hundred; three forths D.two hundreds; three fourths17.Li Ming is an active boy student and he always tries his best to make his life colorful though he is in Grade 9. The table below shows that he spends ________ minutes on after-class activities every week.A.250 B.850 C.60018._________ people attending the meeting is 2975 and about _________ are women.A.A number of , one fourth B.The number of, one fourthC.A number of, one fourths D.The number of, one fourths 19.—Simon, how old is your father this year?—______. And we just had a special birthday party for his _____ birthday last Sunday. A.Fortieth; forty B.Forty; fortyC.Forty; fortieth D.Fortieth; fortieth20.My grandparents live in an old apartment with floors and they are on the floor. A.fifth; three B.fifth; third C.five; three D.five;: third 21.—Ann, when do you plan to go for your ten-day holiday?—Next month. I’m going away on the and coming back on the 12th.A.first B.second C.third D.fourth22.一Mr Black looks very excited.一Yes,90 percent of the students already come to his birthday party.A.have; seventieth B.have; seventiesC.has; seventies D.has; seventieth23.We’v e planted ________ trees in the center of our city this year.A.hundred B.hundreds C.hundredth D.hundreds of 24.Two ____ students ____ to the opening ceremony last Friday.A.hundreds; were invited B.hundred; were invitedC.hundreds of ; invited D.hundred of; invited25.—How old is your grandpa? He looks energetic.—Yeah, it’s hard to imagine he is already in his________ .A.seventies B.seventy C.seventieth D.seventieths【参考答案】***试卷处理标记,请不要删除一、选择题1.A解析:A【解析】【分析】【详解】句意:由于希望工程,成千上万的孩子有了更好的生活。
英语数词知识点的归纳总结
英语数词知识点的归纳总结英语数词知识点归纳总结一、数词的定义数词是用来表示数量的词语,包括基数词和序数词两种。
基数词表示数量的大小,序数词表示事物的顺序。
二、基数词的构成1. 1-12的基数词分别为:one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve。
2. 13-19的基数词以“-teen”结尾,如:thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen。
3. 20-90的基数词以“-ty”结尾,如:twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety。
4. 100以上的基数词由“十位数+百位数”构成,如:100为one hundred,200为two hundred,以此类推。
三、序数词的构成1. 1-12的序数词分别为:first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth。
2. 13-19的序数词以“-thirteenth”结尾,如:thirteenth, fourteenth, fifteenth, sixteenth, seventeenth, eighteenth, nineteenth。
3. 20-90的序数词以“-th”结尾,如:twenty-first, thirty-second,forty-third, fifty-fourth, sixty-fifth, seventy-sixth, eighty-seventh, ninety-eighth。
4. 100以上的序数词由“十位数+百位数+序数词”构成,如:101为one hundred and first,200为two hundred and first,以此类推。
初中英语 数词语法 知识点
一、概说数词是指表示数目多少或顺序先后的词。
表示数目多少的数词叫基数词,如one,five,ten,thirty,sixty-five等;表示顺序先后的数词叫序数词,如first,sixth,tenth,twenty-first等。
二、基数词1.基数词的表示法(1)以下是最基本的基数词,学习者必须牢记:one 1 two 2 three 3 four 4five 5 six 6 seven 7 eight 8nine 9 ten 10 eleven 11 twelve 12thirteen 13 fourteen 14 fifteen 15 sixteen 16seventeen 17 eighteen 18 nineteen 19 twenty 20thirty 30 forty 40 fifty 50 sixty 60seventy 70 eighty 80 ninety 90 a hundred 100a thousand 1000 a million 1000000(2)21—99的表示法。
先说“几十”,再说“几”,中间加连字号:twenty-five 25 thirty-two 32 forty-nine 49eighty-seven 87 ninety-nine 99 forty-four 44(3)101—999的表示法。
先说“几百”,后接and,再加末尾两位数(或末位数):two hundred and six 206 four hundred and sixty 460six hundred and eighty-three 683 nine hundred and ninety-nine 999(4)1000以上的基数词的表示法。
先从右至左数,每三位数加一个逗号(即以此把数目分为若干段)。
第一个逗号前的数为thousand(千),第二个逗号前的数million(百万),然后一段一段地数:6,863 six thousand,eight hundred and sixty-three45,256 forty-five thousand,two hundred and fifty-six365,261 three hundred and sixty-five thousand,two hundred and sixty-one50,331,250 fifty million,three hundred and thirty-one thousand,two hundred and fifty【说明】①英语没有“万”这个单位,要表示“万”须借用thousand,如“一万”用“十千”表示(ten thousand),“十万”用“百千”表示(one hundred thousand)。
(完整版)数词知识点总结
(完整版)数词知识点总结
数词知识点总结
数词是表示具体数量的词汇,在中文中起着非常重要的作用。
以下是数词的一些知识点总结:
1. 数词的分类
数词可以分为基数词和序数词两类。
基数词
基数词表示数量的具体数字,如一、二、三等。
序数词
序数词表示事物的顺序,如第一、第二、第三等。
2. 数词的用法
数词的数量
数词可以表示具体的数量,可以用来计数。
如:一本书、两个
苹果等。
数词的顺序
序数词用来表示事物的顺序,常用于排名、日期、年龄等方面。
如:第一名、第二季度、第三天等。
数词的修饰
数词可以用来修饰名词,如表示数量、比例、程度等。
如:两
个小时、百分之五十、大约三分之一等。
数词的读法
数词的读法有规律可循,但也有一些特殊情况需要注意。
要根
据具体的数词来进行正确的读法。
如:一、二、三、四、五等读作
yī, èr, sān, sì, wǔ;十、百、千、万等读作shí, bǎi, qiān, wàn等。
3. 数词的应用
日常生活中使用数词
数词在日常生活中经常被使用,如购物、计算、描述等方面。
学好数词的应用可以更方便地进行交流和理解。
数词在文化领域的作用
数词在文化领域也有着重要的作用,如在中国文化中的吉祥数字、数字的象征意义等。
以上是数词的一些基本知识点总结。
掌握好数词的分类和用法,能够更准确地表达和理解数量相关的信息。
数词知识点的归纳总结初中
数词知识点的归纳总结初中一、数词的分类1. 基数词:表示数量的词,如一、二、三、四等。
2. 序数词:表示顺序的词,如第一、第二、第三、第四等。
3. 分数词:表示一个数被分为几份的词,如一半、三分之一、四分之二等。
4. 百分数:表示百分比的词,如百分之一、百分之二等。
二、数词的用法1. 基数词的用法:基数词通常用来表示具体的数量,如三只猫、五个苹果等。
在英语中,基数词一般在名词前面使用。
2. 序数词的用法:序数词用来表示顺序或顺序位置,如第一名、第二个等。
序数词通常在名词前面使用。
3. 分数词的用法:分数词用来表示一个数被分为几份,如一半、三分之一等。
分数词通常用来表示分数、比率等概念。
4. 百分数的用法:百分数用来表示百分比,如百分之一、百分之二等。
在数学和经济等领域中经常使用到百分数的概念。
三、数词的变化1. 基数词的变化:基数词一般没有变化,通常直接用在名词前面。
2. 序数词的变化:序数词在英语中有规则的变化规律,通常在基数词后面加上-th、-nd、-rd或-st等后缀。
3. 分数词的变化:分数词通常不发生变化,直接用在句子中表示分数或比率。
4. 百分数的变化:百分数在句子中表示百分比时,通常不会发生变化。
四、数词的表示方式1. 数字的表示方式:数字有阿拉伯数字和罗马数字两种表示方式。
阿拉伯数字是我们日常生活中使用最广泛的数字表示方式,而罗马数字通常用来表示顺序和年份等概念。
2. 数词的书写方式:在中文中,数词通常采用阿拉伯数字的书写方式,如1、2、3等。
而在英文中,数词通常采用字母和数字的组合来表示,如one、two、three等。
五、数词的应用范围数词在我们的日常生活中应用非常广泛,涉及到各个方面:1. 数学:数词在数学中起到非常重要的作用,用来表示具体的数量、顺序和比率等。
2. 时间:数词在表示时间和年份时也频繁使用,如一点、两点、三点等,或者1990年、2000年等。
3. 价格:在购物和商业领域中,数词也用来表示商品的价格和数量。
初中英语语法知识—数词的单元汇编附解析(1)
一、选择题1.Sally, this is ___ time you’ve asked me about that matter. What’s wrong with you?A.three B.the three C.the third2.---How often does the boy play sports?---__________A.Once a week B.Four hours C.In an hour D.At 7pm3.The __ Winter Olympics will be held in Pyeongchang(平昌),South Korea on Feb. ____, 2018. A.twenty-three; nine B.twentieth- three; ninethC.twenty-third; ninth D.twentieth-three; ninth4.The year “1999” should be read “The year_______.”A.nineteen and ninety-nine B.nineteen ninety-nineC.one thousand nine hundred ninety-nine D.nineteen hundred and ninety-nine 5.—How much is the computer?—About three yuan.A.thousand B.thousands of C.thousands 6.Christmas Day is on ______ of December.A.twenty-five B.twenty-fifth C.the twenty-fifth7.– Good news. My good friend has just moved to my flat. He lives on the floor.– We are neighbors. We live on the 19th floor. He lives one floor above us.A.twelve B.twelfth C.twenty D.twentieth8.—______________ do you read English newspaper?—At least ______________ a week.A.How long;one B.How often;twiceC.How many;once D.How much;third9.It is reported that people throw ______________ plastic bags along this street every day. A.three hundreds of B.three hundreds C.hundreds of D.hundred of 10.The shoe factory is only about ______ walk from our school.A.half an hour’s B.half and an hour’s C.half an hours’11._______ of the teachers in our school _________women teachers.A.Two thirds,are B.Third Second,is C.Two thirds,is12.There are ____ floors in this building, and my flat is on the ____ floor.A.ten; five B.tenth; fiveC.tenth; fifth D.ten; fifth13.Leonardo was born in ________ in Los Angeles. Last year, he won his ________ Oscar in the 88th Academy Awards (奥斯卡奖).A.1980;first B.the 1980s;the firstC.1980s;first D.the 1980s;first14.Two ____ students ____ to the opening ceremony last Friday.A.hundreds; were invited B.hundred; were invitedC.hundreds of ; invited D.hundred of; invited15.______of the students in our class ______ going to the summer camp in Beijing next week. A.Two-fifths, are B.Second-fifths, areC.Two-fifths, is D.Second-fifths, is16.About ______ of the land ______ covered with trees and grass.A.three fifths; are B.three fifths ; is C.three fifth; are D.third fifths; is 17.I didn’t know Miss Yang was years old until she told me about that.A.fifty B.fifties C.fiftieth18.—What do you think of the environment here?—Wonderful! of the land is covered with trees and grass.A.Two fifths B.Two fifth C.Second fifths D.Second fifth 19.Lesson ____ is so difficult that it will take them _________ to learn it.A.Sixth; two and a half days B.Six; two days and halfC.Sixth; two and a half day D.Six; two days and a half20.There are ________ teachers in our school, ________of them are women teachers. A.two hundreds ; three fourth B.two hundred ; three fourthsC.two hundred; three forths D.two hundreds; three fourths21.—Hi, Jack! What about playing soccer after school?—I’d love to, but it’s my grandfather’s ______ birthday and we will have a celebration. A.ninetith B.ninetieth C.nintieth22.---Song of Youth is a very popular movie these days.---That’s true. people, especially the young, enjoy watching it.A.Millions of B.Two millions C.Two millions of23.of people enjoy the TV play You Come From the Star. And 70% of the music in it very original.A.Three fifth, is B.Three fifth, are C.Three fifths, are D.Three fifths, is 24.There are ________ people in the supermarket. It's so crowded.A.hundred B.hundreds C.hundred of D.hundreds of 25.Every year there are about _______ people waiting for their trains back home in the railway station before Spring Festival comes.A.five thousand of B.five thousand C.thousand of D.five thousands of 【参考答案】***试卷处理标记,请不要删除一、选择题1.C解析:C【解析】句意:莎莉,这是你第三次问我那个问题。
(易错题精选)初中英语语法知识—数词的单元汇编附答案(1)
一、选择题1.I didn’t know Miss Yang was years old until she told me about that.A.fifty B.fifties C.fiftieth2.The year “1999” should be read “The year_______.”A.nineteen and ninety-nine B.nineteen ninety-nineC.one thousand nine hundred ninety-nine D.nineteen hundred and ninety-nine 3.—How old is your sister?—______________.We had a special party for her ______________ birthday yesterday. A.Twenty-one;twenty-first B.Twenty-first;twenty-firstC.Twenty-one;twenty-one D.Twenty-first;twenty-one4.Mount Tai is so famous that ___ people visit it every day.A.hundred of B.seven hundreds of C.hundreds of D hundreds 5.–Hi, Kate! There are floors in this building. Which floor do you live on?–I live on the floor.A.twenty ; twelve B.twenty; twelfth C.twentieth; twelfth6.It is reported that people throw ______________ plastic bags along this street every day. A.three hundreds of B.three hundreds C.hundreds of D.hundred of 7.The shoe factory is only about ______ walk from our school.A.half an hour’s B.half and an hour’s C.half an hours’8.Harry’s mom looks young and beautiful. It’s hard to imagine she is already _________ her _________.A.in; fifty B.in; fifties C.on; fifties D.in; fiftieth9.________of the students in our class________ going to the summer camp in Beijing next week.A.Two fifths; are B.Second fifths; are C.Two fifths; is D.Two fifth; are 10.This is our _______ school year, we are going to graduate in two months.A.third B.three C.the third11.The environment here becomes better and better. ______________ birds are coming back. A.Thousands of B.Thousand ofC.Thousands D.Thousand12.Two-child policy has been carried out. Most parents are planning to have their child. A.one B.two C.first D.second 13.—How old is your grandpa? He looks energetic.—Yeah, it’s hard to imagine he is already in his________ .A.seventies B.seventy C.seventieth D.seventieths 14.Two ____ students ____ to the opening ceremony last Friday.A.hundreds; were invited B.hundred; were invitedC.hundreds of ; invited D.hundred of; invited15.—What do you think of the environment here?—Wonderful! of the land is covered with trees and grass.A.Two fifths B.Two fifth C.Second fifths D.Second fifth 16.Thanks to Project Hope, ________ children have better lives.A.thousands of B.thousands C.thousand of17.There are ________ teachers in our school, ________of them are women teachers.A.two hundreds ; three fourth B.two hundred ; three fourthsC.two hundred; three forths D.two hundreds; three fourths18.Every day, _______ people wait to watch the raising of the national flag at Tian’anmen Square.A.thousands B.two thousands C.thousand of D.thousands of 19.--- Which is the biggest number of the four?--- ______.A.One third B.A half C.Two thirds D.A quarter20.Li Wei bought some school things online at the beginning of the new term, according to the information in the form below, he saved _______ in all.School thingsThe shop nearby¥ 160¥ 30¥ 20¥ 80 Online shop¥ 140¥ 20¥ 15¥ 60A.¥ 55 B.¥ 235 C.¥ 29021._________ people attending the meeting is 2975 and about _________ are women.A.A number of , one fourth B.The number of, one fourthC.A number of, one fourths D.The number of, one fourths22.My grandparents live in an old apartment with floors and they are on the floor. A.fifth; three B.fifth; third C.five; three D.five;: third 23.visitors came to take photos of Hongyadong during the vacation.A.Thousand B.Thousand of C.Thousands D.Thousands of 24.一Mr Black looks very excited.一Yes,90 percent of the students already come to his birthday party.A.have; seventieth B.have; seventiesC.has; seventies D.has; seventieth25.About ______ of the land ______ covered with trees and grass.A.three fifths; are B.three fifths ; is C.three fifth; are D.third fifths; is【参考答案】***试卷处理标记,请不要删除一、选择题1.A解析:A【解析】句意:直到杨小姐告诉我那件事,我才知道她五十岁。
初中英语语法学习之数词重点知识归纳
初中英语语法学习之数词重点知识归纳(一)基数词基数词用来表示数目,或者说表示数量的词叫基数词。
最基本的基数词如下表所示。
1 one 11 eleven 100 a hundred2 two 12 twelve 20 twenty 1000 a thousand3 three 13 thirteen 30 thirty 1,000,000 a million4 four 14 fourteen 40 forty 10,000,000 ten million5 five 15 fifteen 50 fifty 100,000,000 a hundred million6 six 16 sixteen 60 sixty 1,000,000,000 a billion7 seven 17 seventeen 70 seventy8 eight 18 eighteen 80 eighty9 nine 19 nineteen 90 ninety10 ten说明:基数词是表示数目的词,用来计数或表示数量的词。
英文中的基数词一般表示整数,用数字表示,例如 one、two、three、four、five、six、seven、eight、nine、ten 等。
中文的基数词则一般用汉字表示,例如一、二、三、四、五、六、七、八、九、十等。
在英语中,基数词的排列顺序是有一定规律的,一般是由小到大排列,例如 one、two、three、four、five、six、seven、eight、nine、ten 等。
但是在某些情况下,基数词的排列顺序可能会发生变化,例如在列表中,通常会按照字母顺序排列,而不是按照数字大小排列。
除了表示数量外,基数词还可以用于表示等级、分数、小数等。
例如,在表示分数时,英文中常用分子表示基数词,分母表示序数词,例如 one-third(三分之一)、two-fifths(五分之一)等。
在表示等级时,英文中常用基数词表示等级的数量,例如 first(第一)、second(第二)等。
2021年初中英语语法知识—数词的单元汇编及答案解析(1)
一、选择题1.There are _______ people in the cinema.A.two hundred B.two hundreds C.two hundred of 2.—How much is the computer?—About three yuan.A.thousand B.thousands of C.thousands3.—I hear ________ foreign students will come to our school this year.—Right. They are the ______ exchange students.A.nine; nine B.nineth; nine C.nine; ninth D.nine; nineth 4.﹣Welcome to Los Angeles.Have you ever been here?﹣Sure. I visited this city three years ago so this is my _________ time here.A.first B.second C.third5.The shoe factory is only about ______ walk from our school.A.half an hour’s B.half and an hour’s C.half an hours’6.Harry’s mom looks young and beautiful. It’s hard to imagine she is already _________ her _________.A.in; fifty B.in; fifties C.on; fifties D.in; fiftieth7.__________ of his time __________ been spent on studies every day.A.Three fourths;has B.Three fourths;haveC.Third fours;has D.Thirds four;have8.---I am going to take this summer holiday in Taiwan.---Oh, really? Taiwan is ______ a beautiful island that ______ people in Guangdong go to visit it every year.A.so; thousands B.so; thousands ofC.such; many thousand D.such; thousands of9.Every year there are about _______ people waiting for their trains back home in the railway station before Spring Festival comes.A.five thousand of B.five thousand C.thousand of D.five thousands of 10.________of the students in our class________ going to the summer camp in Beijing next week.A.Two fifths; are B.Second fifths; are C.Two fifths; is D.Two fifth; are 11.________ trees have been planted near here, so the air is very fresh.A.Two hundreds B.Hundred ofC.Hundreds of D.Hundreds12.--- What does “three quarters” mean, Li Ping?---I see. It means __________.A.15 minutes B.one third C.fourth three D.three fourths13.This is our _______ school year, we are going to graduate in two months.A.third B.three C.the third14.________ of the students’ parents in our class are in their .A.Two-fifths; forties B.Two-fifths; fortiethC.Two-fifth; forties D.Two-fifth; fortieth15.—When is Mother’s Day?—It’s on ___________ Sunday in May.A.two B.the second C.twelve D.the twelfth16.---If your parents wanted to have a ______ child, would you agree?---Of course. But they should ma ke it in _____ yeas’ time.A.second; second B.two; two C.second; two D.two;second 17.Thanks to Project Hope, ________ children have better lives.A.thousands of B.thousands C.thousand of18.In China, about ___________ of people live in the country.A.three fifth B.third fifthC.three fifths D.three fives19.Is _________ riding enough for you to get there?A.thirty five minutes B.thirty-five minutes’C.thirty-five-minutes D.thirty five minute’s20.Today is my little sister’s ______ birthday. My family will g et together to celebrate it. A.nine B.ninth C.the ninth D.the nine 21.—Good news! We will have a ________ holiday.—I’ve heard of it. But it’s coming in ________.A.three days; three days’ time B.three days’; three days’C.three-day; three days D.three days; three-day time22.Li Ming is an active boy student and he always tries his best to make his life colorful though he is in Grade 9. The table below shows that he spends ________ minutes on after-class activities every week.A.250 B.850 C.60023._________ people attending the meeting is 2975 and about _________ are women.A.A number of , one fourth B.The number of, one fourthC.A number of, one fourths D.The number of, one fourths24.一Mom, of my classmates glasses.一Oh, my God. You need to protect your eyes well.A.three fourths; wears B.three fourth; wearC.three fourth; wears D.three fourths; wear25.—We’ll be back for our school’s ___________ anniversary(周年) ceremony.—I see. That means you’ll have a get-together with your classmates in ___________ years. A.twelve; seven B.twelfth; seven C.twelve; seventh D.twelfth; seventh【参考答案】***试卷处理标记,请不要删除一、选择题1.A解析:A【解析】句意:电影院里有两百人。
初中英语语法大全:数词资料
初中英语语法大全:数词初中英语语法大全:数词定义:表示数目多少或顺序多少的词叫数词,数词分为基数词和序数词。
表示数目多少的数词叫基数词;表示顺序的数词叫序数词。
I基数词1.基数词的构成(1)1-20one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve,thirteen,fourteen,fifteen, sixteen, seventeen, eighteen, nineteen, twenty(2)21-99 先说“几十”,再说“几”,中间加连字符。
23→twenty-three,34→thirty-four,45→forty—five,56→fifty-six,67→sixty-seven,78→seventy-eight,89→eighty-nine,91→ninety-one(3)101—999先说“几百”,再加and,再加末两位数或末位数;586→five hundred and eighty-six,803→eight hundred and three(4)l,000以上,先从右往左数,每三位数加一个“,”,第一个“,”前为thousand.第二个“,”前为million,第三个“,”前为billion(美式)或thousand ,million(英式),然后一节一节地表示。
1,001→one thousand and one9,785→nine thousand, seven hundred and eighty-five18,423→eighteen thousand, four hundred and twenty-three6,260,309→six million two hundred and sixty thousand three hundred and nine750,000,000,000→seven hundred and fifty, billion(美式) seven hundred and fifty thousand million (英式)2.基数词的用法(1)作主语eg.Four Of them come from Paris.(2)作宾语eg.一 How many books would you like?一I would like two.(3)作表语eg.Seven minus two is five.(4)作定语eg.There are three people in my family•(5)作同位语eg. You two will go swimming with us.(6)表具体数字时,hundred, thousand ,million用单数。
初中英语知识点总结数词知识点总结
初中英语知识点总结数词知识点总结初中英语知识点总结:数词知识点总结一、基数词:基数词是用来表示具体数量或数量大小的词。
下面是一些常用的基数词及其用法:1. 整十数词:10 - ten20 - twenty30 - thirty40 - forty50 - fifty60 - sixty70 - seventy80 - eighty90 - ninety2. 十几数词:11 - eleven12 - twelve13 - thirteen14 - fourteen15 - fifteen16 - sixteen17 - seventeen18 - eighteen19 - nineteen3. 基数词的规律:- 数词加上“-teen”表示从13到19;- 数词加上“-ty”表示从20到90,除了特殊的十位数。
4. 其他基数词:1 - one2 - two3 - three4 - four5 - five6 - six7 - seven8 - eight9 - nine100 - one hundred1000 - one thousand1000000 - one million5. 数词的用法:- 数词可以用来表示数量、顺序、年龄、时间等。
- 数词一般位于名词前作定语,也可以作主语、宾语、表语等。
二、序数词:序数词是用来表示顺序或次序的词。
下面是一些常用的序数词及其用法:1. 前四个序数词:1st - first2nd - second3rd - third4th - fourth2. 其他序数词的构成规律:- 以“-y"结尾的序数词变“-y”为“-i”,再加上“-eth”,如十九 - nineteenth;- 以“-e”结尾的序数词直接加上“-th”,如twelve - twelfth;- 以“-ty”结尾的序数词变“-ty”为“-tieth”,如seventy - seventieth;- 以“-ve”结尾的序数词变“-ve”为“-fth”,如five - fifth;- 以“-ty”为单位的序数词变“-ty”为“-tieth”,如twenty - twentieth。
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一、选择题1.I didn’t know Miss Yang was years old until she told me about that.A.fifty B.fifties C.fiftieth2.About _____________ of the students this year were born in the 1990s.A.three five B.three fifths C.third fifths D.third fifth 3.—Zhapo has a really beautiful beach, doesn't it?—Yes, ________ travelers like to come here for a visit.A.thousands of B.thousand of C.thousand D.three thousands 4.Mount Tai is so famous that ___ people visit it every day.A.hundred of B.seven hundreds of C.hundreds of D hundreds 5.—How do your students improve their English writing?—Well, about ______________ of the students like keeping diaries in English in our class. A.two fifth B.two fifths C.second five D.two five6.__________ of his time __________ been spent on studies every day.A.Three fourths;has B.Three fourths;haveC.Third fours;has D.Thirds four;have7.Sally, this is ___ time you’ve asked me about that matter. What’s wrong with you? A.three B.the three C.the third8.Next Friday is my daughter’s birthday. So I will buy her a cake with candles. A.five; fifth B.twelfth; twelve C.nineth; nine9.—How long is the bridge?—About ______ long.A.two thousand meter B.two thousand metersC.two thousands meter D.two thousands meters10.We can see _________stars in the sky at night in the countryside.A.million of B.three millions of C.millions of D.three million of 11.The environment here becomes better and better. ______________ birds are coming back. A.Thousands of B.Thousand ofC.Thousands D.Thousand12.--- What does “three quarters” mean, Li Ping?---I see. It means __________.A.15 minutes B.one third C.fourth three D.three fourths13.About ______ of the land ______ covered with trees and grass.A.three fifths; are B.three fifths ; is C.three fifth; are D.third fifths; is 14.There are ________ people in the supermarket. It's so crowded.A.hundred B.hundreds C.hundred of D.hundreds of 15.Two students to the opening ceremony last Friday.A.hundreds, were invited B.hundred , were invited C.hundreds of, invited16.---If your parents wanted to have a ______ child, would you agree?---Of course. But they should make it in _____ yeas’ time.A.second; second B.two; two C.second; two D.two;second 17.—What do you think of the environment here?—Wonderful! of the land is covered with trees and grass.A.Two fifths B.Two fifth C.Second fifths D.Second fifth 18.________ runners took part in the half marathon(半程马拉松) in Haikou in April. A.Hundred B.Hundreds C.Hundreds of 19.Thanks to Project Hope, ________ children have better lives.A.thousands of B.thousands C.thousand of20.In China, about ___________ of people live in the country.A.three fifth B.third fifthC.three fifths D.three fives21.Every day, _______ people wait to watch the ra ising of the national flag at Tian’anmen Square.A.thousands B.two thousands C.thousand of D.thousands of 22.---Song of Youth is a very popular movie these days.---That’s true. people, especially the young, enjoy watching it.A.Millions of B.Two millions C.Two millions of23.Jim failed twice, but he wanted to have __________ try.A.a second B.a third C.the second D.the third 24.visitors came to take photos of Hongyadong during the vacation.A.Thousand B.Thousand of C.Thousands D.Thousands of 25.______of the students in our class ______ going to the summer camp in Beijing next week. A.Two-fifths, are B.Second-fifths, areC.Two-fifths, is D.Second-fifths, is【参考答案】***试卷处理标记,请不要删除一、选择题1.A解析:A【解析】句意:直到杨小姐告诉我那件事,我才知道她五十岁。
考查数词辨析。
英语中一般直接用基数词表示年龄,不用序数词,可排除C项。
用“基数词+ years old”表示年龄时,注意years是复数形式,而“基数词—year—old”相当于形容词,year用单数形式。
根据句意语境,可知选A。
2.B解析:B【解析】试题分析:句意:今年大约有五分之三的的学生是20世纪90年代出生。
在英语中的分数,分子用基数词,分母用序数词,当分子大于一时,分母用复数形式。
所以选B。
考点:考查数词。
3.A解析:A【解析】试题分析:句意:--- Zhapo有一个真的很漂亮的沙滩,对不对?---是的,成千上万的游客喜欢来着参观,thousands of+名词的复数表示成千上万的……,结合语境可知选A。
考点:考查固定词组的用法。
4.C解析:C【解析】句意:泰山如此出名以至于每天成百上千的人们游览它。
hundred百,有具体数词修饰,表示具体数时,不加s,表示约数,与of连用,后面加s。
hundreds of成百上千,故选C。
5.B解析:B【解析】试题分析:句意:——你的学生怎样提高他们的英语写作水平?——噢,在我们班大约五分之二的学生喜欢用英语写日记。
本题考查分数的表达。
英语分数由基数词和序数词组成。
基数词做分子,序数词做分母,当分子大于1时,分母用复数。
故选B。
6.A解析:A【解析】试题分析:句意:他每天花四分之三的时间学习。
在英语中的分数,分子用基数词,分母用序数词,当分子大于一时,分母要用复数形式。
Time作为“时间”解释时是不可数名词。
所以选A。
考点:考查数词。
7.C解析:C【解析】句意:莎莉,这是你第三次问我那个问题。
你怎么啦?three三;the third第三;根据句型This is+序数词+sb has/ have done sth“这是第几次某人做某事”。
故选C。
8.B解析:B【解析】句意:下周五是我女儿十二岁生日。
所以我将给她买一个蛋糕,带有十二根蜡烛。
five 五,是基数词;fifth第五,是序数词;twelfth第十二,是序数词;twelve十二,是基数词;nineth的正确形式是ninth,第九,是序数词;nine九,是基数词。
第一空修饰birthday表示第几个生日,故用序数词。
第二空修饰复数名词candles,故用基数词,故选B。