2020年中考英语数词复习：基数词hundred(百) , thousand(千) ,
million(百万) , billion(十亿)用法
表示具体的数目，后面不加“s”；表示不确定的数目，后面要加“s”并且组成of短语。如：
1). There are two hundred workers in the workshop. 那个车间有200名工人。
2). He has read thousands of books. 他读过的书数以千计。
第1 页共1 页
最新中考英语数词练习题及答案 一、初中英语数词 1．The headmaster's office is on the floor. A. one B. two C. third D. three 【答案】 C 【解析】【分析】句意：校长的办公室在三楼。one一个，two两个，third第三，three三个。根据句意可知，此处需要填入的意义为第三层，故应该用序数词，故选C。 【点评】考查了序数词与基数词辨析，注意两者意义的区分。 2．—Where is Class ______? —It's on the ______ floor. A. Six; third B. Sixth; third C. Six; three D. Sixth; three 【答案】 A 【解析】【分析】句意：——六班在哪里？——在六楼。六班，Class Six，专有名词，六楼，the sixth floor，使用序数词，故答案是A。 【点评】考查数词的用法，注意基数词和序数词的用法区别。 3．My family lives on ________________ floor of the building. A. twelve B. the twelfth C. twelfth D. the twelve 【答案】 B 【解析】【分析】句意：我家住在这栋楼的第20层。表示第几层，用the+序数词+floor，固定搭配，twelve，12，基数词；twelfth，第12，序数词，故选B。 【点评】考查序数词用法，注意平时识记the+序数词+floor。 4．Our country is 70 years old this year. We will celebrate her _____ birthday on Oct. 1. A. the seventieth B. seventieth C. the seventy D. seventy 【答案】 B 【解析】【分析】句意：今年我们的国家70岁了，我们将在10月1日庆祝她的70岁生日。表达某人几岁生日用one's+序数词+birthday，seventy，70，基数词；seventieth第七十，序数词，排除C、D，故选B。 【点评】考查序数词用法，注意平时识记one's+序数词+birthday。 5．Please pass me ___book on the right. A. four B. fourth C. the four D. the fourth 【答案】 D 【解析】【分析】句意：请递给我右边的第四本书。句中book是单数，four后面用可数名词复数，排除A、C，所以用序数词fourth，序数词前常常加the ，故选D。 【点评】考查序数词用法，注意序数词后面加the。
重点考点清单 一、基数词、序数词以及和数词有关的表示法 1.基数词 （1）基数词最基本的是下面这些，所有 （2）其他基数词可以用下面的方式构成。 ①21~99先说“几十”，再说“几”，中间加连字符。如：thirty-o ne boys 31个男孩 ②101~999先说“几百”，再加and, 然后再加末两位数（或末位数）。如：three hundred and sixty-five days 365 天 ③1000以上的数，先从后向前数，每三位数为一节，第一节前为thousand，第二节前为million，第三节前为billion，然后一节节表示。如：seve n thousa nd three hun dred and sixty-two 7,362 2.序数词 （1）序数词的基本构成是：一般以与之相对的基数词词尾加-th来构成。如:sixth第六 （2）下面这些基数词在变为序数词的时 候，有另外的表达法，需特殊记忆。女口：one —first two —sec ond three —third five ——fifth eight ——eighth nine ——ninth twelve —twelfth （3 ）以ty结尾的基数词，要变y为ie，再加th。如：twenty —twentieth forty —fortieth （4）若是多位数词，则前面为基数词， 后面为序数词，照第一条变。女如：twenty-one —twen ty-first nin ety-nine —nin ety-ninth （5）在使用序数词时，通常前面加定冠 词the；有时也可以加不定冠词a/an，表示“又一、再一”；当序数词前面已经有限定词时，则不需要加定冠词。 3.和数词有关的表示法 （1）年月日的表示法： ①年份用基数词表示，一般写为阿拉伯数字。表示在哪一年，则一般在年份前加介词in。如：in 1949在1949年 ②月份词的第一个字母要大写，表示在哪个月份也要用介词in。如：in May在5 月份。为了简便，月份与日期连用时，月份 常用缩写形式。缩写形式除May , June, July 不变，September为前四个字母外，其他月份都由前三个字母表示。 ③日期要用定冠词the加序数词表 示。指具体在哪一天时要日期前加介词on。如：on Oct. 1st 在十月一日 （2）年代的表示法： ①in the+基数词+整十数的复数形式； 或者是in the+整十数的复数形式+of+the+基数词+century。如：in the nineteen thirties 或in the thirties of the twen tieth cen tury in the 1930'/1930s在20世纪30年代 ②表示某年代的早期、中期和晚期， 可以再定冠词后、年代前添加early, mid-, late。如：in the early 1920 '在20 世纪20 年代早期（3 ）世纪的表示法：the+序数词+century ;也可以用the+百位进数+ '。如：the sixth century 公元六世纪the 1600's 17 世纪二、概数词 1. 当hundred，thousand，million ，billion 用单数形式的时候，表示确指，前面加具体数字。如：two hundred 二百；当hundred ，thousand，million ，billion 用复数形式的时候，后面接of ，表示不确切的数字，成百、上千等等。 专题四数词知考点
数词专项练习 I. 单项选择。 1. —Good morning, Madam. Can I help you? —Sure, I’d like ________for cooking vegetables. A. two cups of tea B. three pieces of bread C. five kilos of oil D. four bottles of milk 2. Nearly _______of the earth _______ covered by sea. A. three fourth，is B. three fourths，is C. three fourth，are D. three fourths，are 3. —We’ll be back for our school’s ____anniversary ceremony. —I see. That means you’ll have a get-toget her with your classmates in _______ years. A. fifteen，seven B. fifteenth，seven C. fifteen，seventh D. fifteenth，seventh 4. —Whi ch class won the match in the end? —I’m not quite sure. Perhaps _________did. A. Class Third B. Third Class C. Class Three D. Three Class 5. There are ________ people in the supermarket. It’s so crowded. A. hundred B. hundreds C. hundred of D. hundreds of 6. 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 7. My brother is a ______ boy and he can’t go to school now. A. four years B. four-year-old C. four-years-old D. four years old 8. It is said that the big fish in the lake i s about ______. A. four meters long B. four meter long C. four-meter long D. four-meters long 9. —What’s the date today? —It is _______. A. March the eighth B. March eight C. eight March D. eighth March
中考英语数词讲解及练 习 文档编制序号：[KK8UY-LL9IO69-TTO6M3-MTOL89-FTT688]
数词的分类 (一)基数词在中表示数目的词称为基数词。 1.基数词的构成 (1)1-20 one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve, thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen,t wenty (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 one 9,785→nine thousand, seven hundred and eighty-five 18,423→eighteen thousand,four hundred and twenty-three 6,260,309→six million two hundred and sixty tho usand three hundred and nine
数词-冲刺中考英语专题练习 班级：姓名：成绩： 一、选择题 1、 Teachers' Day is in September, the ____________month of the year. A. nine B. ninth C. ten D. tenth 2、 There are fifty students in this class， ________ of them are boys，so the number of the boys is 30．（） A．three fifth B．three fifths C．three five 3、—I like the number"9"best, because I think it stands for "long lasting". — Me too. So I choose _____________ floor to live on. A. nine B. ninth C. the nine D. the ninth 4、 The words from Page 1 to Page 3 are very clear． But the ones on the ________ page are not．（） A．first B．two C．three D．fourth 5、 We all know that ________ birds fly to Dongting Lake in winter．（） A．million B．millions C．millions of 6、 Tomorrow we are going to celebrate my dear grandpa's birthday．（） A．eighty B．eightieth C．eight D．eighth 7、 My grandparents live in an old apartment with ______floors and they are on the ______floor．（） A．five， five B．five，fifth C．fifth，fifth D．fifth ，five —1 —
中考英语数词专题 一、初中英语数词 1．The headmaster's office is on the floor. A. one B. two C. third D. three 【答案】 C 【解析】【分析】句意：校长的办公室在三楼。one一个，two两个，third第三，three三个。根据句意可知，此处需要填入的意义为第三层，故应该用序数词，故选C。 【点评】考查了序数词与基数词辨析，注意两者意义的区分。 2．—Where is Class ______? —It's on the ______ floor. A. Six; third B. Sixth; third C. Six; three D. Sixth; three 【答案】 A 【解析】【分析】句意：——六班在哪里？——在六楼。六班，Class Six，专有名词，六楼，the sixth floor，使用序数词，故答案是A。 【点评】考查数词的用法，注意基数词和序数词的用法区别。 3．My family lives on ________________ floor of the building. A. twelve B. the twelfth C. twelfth D. the twelve 【答案】 B 【解析】【分析】句意：我家住在这栋楼的第20层。表示第几层，用the+序数词+floor，固定搭配，twelve，12，基数词；twelfth，第12，序数词，故选B。 【点评】考查序数词用法，注意平时识记the+序数词+floor。 4．Please turn to Page ______________ and take a look at the picture on it. A. the eightieth B. Eightieth C. Eighties D. Eighty 【答案】 D 【解析】【分析】句意：请翻到第80页，看看上面的图片。当表示“第…….页（房间、组等）”时，常用“名词+基数词”，Page80表示“第80页”。故选D。 【点评】考查基数词的基本用法。注意Page80=the 80th page，都表示第80页。 5．There are ________________ months in a year. My birthday is in the ________________ month. A. twelve; twelve B. twelfth; twelfth C. twelve; twelfth D. twelfth; twelve 【答案】 C 【解析】【分析】句意：一年有12个月，我的生日在第12个月。名词复数months前是基数词，twelve是基数词，the定冠词后是序数词，twelfth是序数词，故选C。 【点评】考查数词，注意名词复数前是基数词，定冠词后是序数词的用法。
数词的分类 (一)基数词在英语中表示数目的词称为基数词。 1.基数词的构成 (1)1-20 one,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→t wenty-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 e ighty-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 one 9,785→nine thousand, seven hundred and eighty-five 18,423→eighteen th ousand,four hundred and twenty-three 6,260,309→six million two hundred and sixty thousand three hundred and nine
人教版中考英语九年级英语数词专项练习题及答案详解 一、初中英语数词 1．There were about six___________ students in the school building during the earthquake. A. hundred B. hundreds C. hundreds of D. hundred of 【答案】 A 【解析】【分析】句意：地震期间，校舍里大约有六百名学生。hundred，百，基数词，表示具体的数量，其前要用基数词；hundreds of +可数名词复数，表示不确定的数量，固定短语。空格前有基数词six，要用hundred，故答案选A。 【点评】考查基数词hundred的用法。注意hundreds不能单独使用，必须与of放在一起使用。 2．The number of the students in our school is about four __________. _______ of them are girls. A. thousand; Two thirds B. thousands; Two third C. thousands; Two thirds D. thousand; Two third 【答案】 A 【解析】【分析】句意：我们学校的学生人数大约是四人。三分之二是女孩。four基数词后用thousand的原形，分数表达形式是分子是基数词，分母是序数词，分子大于一，分母用复数形式，故三分之二是two thirds，故选A。 【点评】考查数词，注意分数的用法。 3．Two students to the opening ceremony last Friday. A. hundreds; were invited B. hundred; were invited C. hundreds of; invited 【答案】 B 【解析】【分析】句意：上周五有200名学生被邀请参加开幕式。根据题干中的two与选项中的hundred可知此题考查确切数量的表达方式，hundred要用单数形式；students与invite存在动宾关系，此处要用被动语态，由last Friday，可知要用一般过去时，故选B。【点评】考查数量的表达方式以及被动语态。注意确切数量与不确切数量在表达上的不同。 4．We gave away ________ books to the school library last year. A. six thousands B. six thousand C. six thousands of D. six thousand of 【答案】 B 【解析】【分析】句意：去年我们向学校图书馆赠送了六千本书。数词后thousand用单数，thousands of，固定搭配，几千个，不与数字搭配；因此是six thousand或者thousands of，只有B对，故选B。 【点评】考查数词，注意识记thousand的用法。 5．Every year, ________ books are given away to the poor children in the countryside.
外研版英语中考英语数词考点解析（Word版附答案） 一、初中英语数词 1．—____________of volunteers will be needed for the 2020 Olympic Games. —Let's go and____________ them. A.Thousands, join B.Thousand, be a member of C.Three thousand, take part in D.Thousands, be in 【答案】A 【解析】【分析】句意：——2020年奥运会将需要几千名志愿者。——让我们去加入他们吧。thousands of，几千，join sb，加入，和某人一起，故选A。 【点评】考查数词，注意join sb的用法。 2．______ of the students in our school are boys. A. Two three B. Second three C. Two thirds D. Two third 【答案】 C 【解析】【分析】句意：我们学校的学生中有三分之二是男生。分数词是分子是基数词，分母是序数词，分子大于一，分母加s，因此二分之一是two thirds，故选C。 【点评】考查分数，注意分子是基数词，分母是序数词，分子大于一，分母加s的用法。 3．My family lives on ________________ floor of the building. A. twelve B. the twelfth C. twelfth D. the twelve 【答案】 B 【解析】【分析】句意：我家住在这栋楼的第20层。表示第几层，用the+序数词+floor，固定搭配，twelve，12，基数词；twelfth，第12，序数词，故选B。 【点评】考查序数词用法，注意平时识记the+序数词+floor。 4．Please turn to Page ______________ and take a look at the picture on it. A. the eightieth B. Eightieth C. Eighties D. Eighty 【答案】 D 【解析】【分析】句意：请翻到第80页，看看上面的图片。当表示“第…….页（房间、组等）”时，常用“名词+基数词”，Page80表示“第80页”。故选D。 【点评】考查基数词的基本用法。注意Page80=the 80th page，都表示第80页。 5．— Is Dongjin High-speed Railway Station the largest in Hubei Province?
数词专项练习题 I. 写出下列基数词相应的序数词： 1. one __________ 2. two _________ 3. three _________ 4. five ________ 5. eight __________ 6. nine _________ 7. twelve _________ 8. twenty __________ 9. thirty-one __________ 10. forty-four ___________ 11. fifty-seven ____________ .二把下列短语译成英语： 1. 第12课________________________ 2. 304号房间_______________________ 3. 半小时________________________ 4. 每日三次_______________________ 5. 第25页_______________________ 6. 20世纪90年代___________________ 7. 4路公共汽车_____________________ 8. 第15中学_____________________ 9. 21世纪_________________________ 10. 两吨半______________________ 11. 差一刻三点_____________________ 12. 第二册________________________ 13. 在他五十几岁时___________________ 14. 二年级八班____________________ 15. 10:45 _____________________________ 16. 第十五单元____________________ 17. 第三册第十三课_______________________ 18. 三分之一__________________ 19. 三百美金_________________________ 20. 1994年3月22日__________________ 三. 选择填空： 1. 333 reads ___________. A. three hundred and thirty three B. three hundreds and thirty-three C. three hundred and thirty-three D. three hundred thirty-three 2. The _______ month of the year is February. A. one B. first C. two D. second 3. The beautiful skirts are on show in the shop, Jane likes _______. A. the ninth B. the nineth C. nine D. ninth 4. It took me _______ to finish my homework. A. a half and two hour B. two hour and a half C. two and a half hour D. two and a half hours 5. December is the _______ month of the year. A. twelve B. twelveth C. twelvieth D. twelfth 6. Tom bought ______ for himself yesterday. A. two pairs of shoes B. two pair of shoe C. two pair of shoes D. two pairs shoes 7. There are _______ seconds in a minute. A. fourty B. forty C. sixteen D. sixty 8. Lin Tao gets up at ______ in the morning. A. half past six B. six past half C. past half six D. half six past 9. December ______ is Christmas. A. twenty-five B. the twenty-fifth C. the twentieth-five D. twentieth-fifth 10. There are _____ stars in the universe. A. millions B. million of C. millions of D. million 11. Monday is the _______ day of the week. A. two B. second C. three D. third 12. Mr. Black left here _____ ago. A. half a hour B. half an hour C. an half hour D. a half hours
中考英语数词讲解教案 基数词 （一）基本概念：表示数目多少的词叫基数词。 1. 1-12独立成词：one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve 2. 13-19 (+teen)：thirteen , fourteen, fifteen , sixteen, seventeen, eighteen, nineteen 3. 20-90 (整十位数+ty)：twenty, thirty, forty , fifty, sixty, seventy, eighty, ninety 4. 21-99间的两位数，先说“十位”，再说“个位”，中间要加连字符“-” 5. 101-999之间的三位数，先说“百位”，再加and ，再加末尾两位数。 6. 1000以上数，使用计数符号，每三位加以逗号，从第一个逗号起单位依次为thousand, million, billion.“万”表达为ten thousand 例：579 five hundred and seventy-nine 802 eight hundred and two 4, 352 four thousand three hundred and fifty-two 14, 615 fourteen thousand six hundred and fifteen 123, 456, 789 one hundred and twenty-three four hundred and fifty-six thousand seven hundred and eighty-nine - 1 , 2 3 4 , 5 6 7 , 8 9 9 billion million thousand and
中考英语数词专项练习 一、初中英语数词 1．—____________of volunteers will be needed for the 2020 Olympic Games. —Let's go and____________ them. A.Thousands, join B.Thousand, be a member of C.Three thousand, take part in D.Thousands, be in 【答案】A 【解析】【分析】句意：——2020年奥运会将需要几千名志愿者。——让我们去加入他们吧。thousands of，几千，join sb，加入，和某人一起，故选A。 【点评】考查数词，注意join sb的用法。 2．—Do you know the boy is sitting next to Peter？ —Yes. He is Peter's friend. They are celebrating his birthday. A. who; ninth B. that; nine C. which; ninth 【答案】 A 【解析】【分析】句意：——你知道那个坐在彼得旁边的男孩吗?——是的。他是彼得的朋友。他们正在庆祝他的九岁生日。分析句子结构可知，第一空所在句子是定语从句，先行词是人，连接词在从句中作主语，所以应该用who/that引导，which连接定语从句时先行词应该是物，故排除C；nine九，基数词；ninth第九，序数词；第二空根据空后的birthday为名词单数可知，此处需要序数词，表示某人几岁生日应该用序数词表示第几个生日，故选A。 【点评】考查定语从句的连接词的辨析和序数词。注意区别定语从句的连接词的使用原则，理解单词词义。 3．Please turn to Page ______________ and take a look at the picture on it. A. the eightieth B. Eightieth C. Eighties D. Eighty 【答案】 D 【解析】【分析】句意：请翻到第80页，看看上面的图片。当表示“第…….页（房间、组等）”时，常用“名词+基数词”，Page80表示“第80页”。故选D。 【点评】考查基数词的基本用法。注意Page80=the 80th page，都表示第80页。 4．Every year, ________ books are given away to the poor children in the countryside. A. thousand B. thousands of C. thousand of
中考英语试题数词考点试题 （1.四川省自贡市26. 1）—Good morning ,madam.Can I help you? --Sure,I’d like ________for cooking vegetables. A.two cups of tea B.three pieces of bread C.five kilos of oil 【答案】C (1.江苏省无锡市.1.1)Nearly _______of the earth_______covered by sea. A.three fourth;is B.three fourths;is C.three fourth;are D.three fourths;are 【答案】B （1·湖北省黄冈市，34，1）—We’ll be back for our school’s ____anniversary ceremony. -together with your classmates in_______years. --I see.That means you’ll have a get A.fifteen;seven B.fifteenth;seven C.fifteen;seventh D.fifteenth;seventh 【答案】B （1·山东省聊城市，35，1）—Which class won the match in the end? --I’m not quite sure.Perhaps _________did. A.Class Third B.Third Class C.Class Three D.Three Class 【答案】C （1·山东省莱芜市，25，1）There are ________ people in the supermarket. It's so crowded. A．hundred B．hundreds C．hundred of D．hundreds of 【答案】D （1·贵州省铜仁市，30，1）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 【答案】A （1·广西省定西市，12，1）( ) girls took part in the Happy Girl Competition but only few of them succeeded.
一、选择题 1．—When is Mother’s Day? —It’s on ___________ Sunday in May. A．two B．the second C．twelve D．the twelfth 2．Christmas Day is on ______ of December. A．twenty-five B．twenty-fifth C．the twenty-fifth 3．—How old is your sister? —______________.We had a special party for her ______________ birthday yesterday. A．Twenty-one；twenty-first B．Twenty-first；twenty-first C．Twenty-one；twenty-one D．Twenty-first；twenty-one 4．– 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 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; twelfth 6．——What should we do now, Mr.Li? ——Please turn to Page_____and look at the_____picture. A．Twelfth;fifth B．Twelve; fifth C．Twelve;five D．Twelfth;five 7．—______________ do you read English newspaper? —At least ______________ a week. A．How long；one B．How often；twice C．How many；once D．How much；third 8．--Many young people came to Zhongshan in ______．When did he come to Shenzhen？---When he is an ______ boy，he came here with his parents． A．1980s； eight years old B．1980s； eight-year-old C．the 1980s； eight-year-old D．the 1980s； eight-years-old 9．Sally, this is ___ time you’ve asked me about that matter. What’s wrong with you? A．three B．the three C．the third 10．Next Friday is my daughter’s birthday. So I will buy her a cake with candles. A．five; fifth B．twelfth; twelve C．nineth; nine 11．—How long is the bridge? —About ______ long. A．two thousand meter B．two thousand meters C．two thousands meter D．two thousands meters
外研版英语中考英语数词知识点总结 一、初中英语数词 1．There are children in my grandfather's family and he is the child of the family. A. nine; fifth B. nine; five C. ninth; five D. ninth; fifth 【答案】 A 【解析】【分析】句意：我外公家有9个孩子，并且他是第五个孩子。A.nine；fifth9；5； B.nine；five 9；5； C.ninth；five 第九；5 D.ninth；fifth 第九；第五。根据第一个空可知，此处填入基数词，答案为nine，第二个空填入序数词，答案为fifth，故选A。 【点评】考查了基数词与序数词的辨析，注意，区分两者。 2．—What day is the ______ day of the week? —It's Friday. A. fifth B. five C. six D. sixth 【答案】 D 【解析】【分析】句意：——一周的第六天是星期几？——星期五。A.第五；B.五；C.六； D.第六。星期五是一周的第六天，因此使用sixth，故答案是B。 【点评】考查序数词，追序数词在具体语境中的运用。 3．Two students to the opening ceremony last Friday. A. hundreds; were invited B. hundred; were invited C. hundreds of; invited 【答案】 B 【解析】【分析】句意：上周五有200名学生被邀请参加开幕式。根据题干中的two与选项中的hundred可知此题考查确切数量的表达方式，hundred要用单数形式；students与invite存在动宾关系，此处要用被动语态，由last Friday，可知要用一般过去时，故选B。【点评】考查数量的表达方式以及被动语态。注意确切数量与不确切数量在表达上的不同。 4．—Do you know the boy is sitting next to Peter？ —Yes. He is Peter's friend. They are celebrating his birthday. A. who; ninth B. that; nine C. which; ninth 【答案】 A 【解析】【分析】句意：——你知道那个坐在彼得旁边的男孩吗?——是的。他是彼得的朋友。他们正在庆祝他的九岁生日。分析句子结构可知，第一空所在句子是定语从句，先行词是人，连接词在从句中作主语，所以应该用who/that引导，which连接定语从句时先行词应该是物，故排除C；nine九，基数词；ninth第九，序数词；第二空根据空后的birthday为名词单数可知，此处需要序数词，表示某人几岁生日应该用序数词表示第几个生日，故选A。 【点评】考查定语从句的连接词的辨析和序数词。注意区别定语从句的连接词的使用原则，理解单词词义。