初中英语语法知识—数词的知识点(4)
一、选择题
1．Two students to the opening ceremony last Friday.
A．hundreds, were invited B．hundred , were invited C．hundreds of, invited
2．---How often does the boy play sports?
---__________
A．Once a week B．Four hours C．In an hour D．At 7pm
3．The __ Winter Olympics will be held in Pyeongchang(平昌)，South Korea on Feb. ____, 2018. A．twenty-three; nine B．twentieth- three; nineth
C．twenty-third; ninth D．twentieth-three; ninth
4．In our city, about ________ of people can get _________ yuan a month.
A．three quarters; two thousands B．three quarter; two thousand
C．three quarters; two thousand D．three quarter; two thousands
5．Two-child policy has been carried out. Most parents are planning to have their child. A．one B．two C．first D．second
6．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．—When did you start to collect stamps?
—I got my ______ stamp when I was ______ years old.
A．one, seven B．one, seventh
C．first, seventh D．first, seven
8．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 first
C．1980s；first D．the 1980s；first
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．This is our _______ school year, we are going to graduate in two months.
A．third B．three C．the third
11．The environment here becomes better and better. ______________ birds are coming back. A．Thousands of B．Thousand of
C．Thousands D．Thousand
12．Nearly ________of the American children get money from their part-time job.
A．two third B．two three C．two thirds D．second third
13．---How many teachers are there in your school?
---Over four______. And ______ of them are women teachers.
A．hundred, two-thirds B．hundred, two-third
C．hundreds, two-thirds D．hundreds, two-third
14．______of the teachers in our school is 118, ______ of them are women teachers.
A．The number; first fourth B．The number; one fourth
C．A number; one second D．A number; three quarters
15．---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 16．－Hi, Cathy. Did you watch the Spring Festival Gala on New Year’s Eve?
－Of course, I can’t miss it. And I know more than 646 ______ people in China and overseas watched the show on television.
A．million B．millions of C．millions D．million of
17．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．600
18．—Hi, Jack! What about playing soccer after school?
—I’d love to, but it’s my grandfather’s ______ birthday and we w ill have a celebration. A．ninetith B．ninetieth C．nintieth
19．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．The number “23,456” can be read as “________”.
A．twenty-three thousand, four hundred and fifty-six
B．twenty-three thousand and four hundred fifty-six
C．two three thousand and four five six
D．two three thousand, four and five six
21．Jim failed twice, but he wanted to have __________ try．
A．a second B．a third C．the second D．the third
22．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 23．We’ve 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 invited
C．hundreds of ; invited D．hundred of; invited
25．______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．Second-fifths, is
【参考答案】***试卷处理标记，请不要删除
一、选择题
1．B
解析：B
【解析】
句意：上周五两百名学生被邀请参加了开幕式。hundred百，表示约数时，与of连用，加s，例如hundreds of好几百；表示具体数时，与数词连用，不加s，例如two hundred两百。结合句意，主语students与谓语invite之间是被动关系，故用被动语态，故选B。2．A
解析：A
【解析】
本题问的是频率，once a week 意思为每周一次，表示的是频率，故本题选A。
3．C
解析：C
【解析】
句意：第23届冬季奥运会将与2018年2月9日在韩国平昌举行。twenty-three23，是基数词; nine 9，是基数词。twenty-third第23,; ninth第9，表示第几届奥运会，用序数词，第二十三为twenty-third。表示具体日子，用序数词，表示9日用ninth。故选C。
4．C
解析：C
【解析】
句意：在我们城市，大约大约四分之三的人们能大约一个月挣到2000元。three quarters 表示四分之三；thousand前面有具体数字的时候，不能变复数。根据题意，故选C。5．D
解析：D
【解析】
句意：二胎政策已经实施了，许多父母计划生他们的第二个孩子了。A. one一，基数词；Ｂ.two二，基数词；C. first第一，序数词；D. second第二，序数词。二胎政策出台后，家长们想要第二个孩子，第二：second。故选Ｄ。
点睛：基数词表示“数量”，意思是“几”；序数词表示“顺序”，意思是“第几”。
解析：C
【解析】
句意：据报道每天人们扔在这条大街上的塑料袋有好几百个。hundred与数词连用时不加s，但是表示好几百时，用复数形式，与介词of连用。故答案选C。
7．D
解析：D
【解析】
试题分析：句意：---你什么时候开始收集邮票的？---当我七岁大的时候收集了第一张邮票。此题考查数词基数词和序数词，根据句意，故选D。
考点：考查数词。
8．D
解析：D
【解析】
句意：李奥纳多出生在洛杉矶。去年，他第一次获得了第88届奥斯卡金像奖。in 1980在1980年；in the 1980s在20世界80年代；此处表示出生在具体某一年。当序数词the前有形容词性物主代词his修饰，不加定冠词the。故选D。
9．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。
10．A
解析：A
【解析】句意：这是我们的第三学年，我们将在两个月后毕业。考查数词辨析题。基数词（one除外）后面接复数名词，school year是单数形式，可排除B。序数词需用定冠词the 修饰，但是当序数词前面有代词或其他词修饰，则不用冠词。根据句意结构，可知选A。11．A
解析：A
【解析】
【详解】
试题分析：句意：这里的环境越来越好。成千上万的鸟儿正飞回来。thousands of成千上万，表示约数。所以选A。
12．C
解析：C
【解析】句意：近三分之二的美国孩子从兼职工作中得到钱。分数是由基数词和序数词一起来表示的。基数词作分子，序数词作分母，除了分子是“1”以外，其它情况下序数词都要用复数形式。故答案为C。
解析：A
【解析】
试题分析：句意：--在你们学校有多少老师？--四百多。他们中的三分之二是女老师。Hundred前面有具体数字的时候不能变复数；分数的表达法，分子用基数词，分母用序数词，当分子超过一的时候，分母用复数的形式，结合语境，故选A。
考点：考查数词的用法。
14．B
解析：B
【解析】句意：我们学校老师的数量是118人，他们之中四分之一是女教师。a number of 为量词短语，表示“许多……”，中心词是这个短语所修饰的复数名词，所以作主语时，谓语动词用复数形式。the number of表示“……的数量”，中心词为number，指的是of后边名词的数量，数量是个抽象概念，因此谓语动词用单数。分数的表达方式是：用基数词+序数词表示，如果分子大于1,分母则要用复数形式，故选B。
点睛：进一步彻底区分两个短语搭配：a number of 一些，修饰可数名词, a number of修饰的可数名词要用复数形式,后面如果有be动词也要用复数，这个短语有变体，如：a
small/large/great number of a small number of等。the number of 意思是……的数量，修饰了名词之后如果有be动词要用单数,因为数量就是一个数字,所以必须要用单数。
15．C
解析：C
【解析】
句意：-------如果你的父母想要再生一个孩子，你同意吗？--------当然同意。但是他们应该在两年后会做到的。考查数词的用法。second第二，是序数词；two二，是基数词；a +序数词，表示＂再，又＂，故第一空为序数词second。第二空修饰复数名词years，故此处用数词two。故选C。
16．A
解析：A
【解析】
【详解】
句意：——嗨，Cathy，你除夕看春节联欢晚会了吗？——当然了，我不能错过。我知道在海外有6.46亿人通过电视观看了这个节目。设空处前面有具体数字646，所以million后面不加s，也不加of；故答案选A。
【点睛】
当hundred/ thousand/million等词前有确切数字时，其后不加“s”，而且不和of连用，直接修饰名词复数形式；当hundred/ thousand/million等词前无确切数字时，其后要加“s”，而且和of连用，表示不确切的数目；根据And I know more than 646 ______ people in China and overseas watched the show on television.可知，本题空格前面有确切数字646，所以million后面不加s，也不加of；故答案选A。
解析：A
【解析】
【分析】
【详解】
句意“李明是一个活泼的男学生。尽管他上9年级了，但是他总是尽他最大的努力使他的生活丰富多彩。下面的表格显示，他每周花费250分钟在课外活动上”。根据表格可知，他工作日总共花费50分钟读书、100分钟骑车。在周末，他每天花费20分钟跑步、30分钟打球。所以50+100+20*2+30*2=250，所以他每周花费250分钟在课外活动上，故选A。18．B
解析：B
【解析】
【分析】
【详解】
考查数词，句意：“-嗨，杰克！放学后踢足球怎么样？-我很乐意，但今天是我祖父的九十岁生日，我们要庆祝一下。”，表示某人多少岁的生日，应该用序数词，第九十Ninetieth，故选B。
19．D
解析：D
【解析】
【详解】
句意：Sally，这是你第三次问我关于那件事了，你怎么了？考查序数词。根据句意“Sally，这是你第三次问我关于那件事了，你怎么了？”可知，表示此处表示“第三次”所以应用序数词，而且前面需要加定冠词the，three的序数词为third；结合选项可知D选项符合题意，故答案选D。
20．A
解析：A
【解析】
【详解】
句意：数字23456可以读作二万三千四百五十六。首先，英语数字都是以1000为单位的，thousand(千)，million(百万)，billion(十亿)所以从右向左三位三位的用逗号断开。百位和十位之间用and相连，个位和十位之间加连字符。故答案选A。
【点睛】
在英语中，数字的读法是：从数字的右端向左端数起，每三位数加一个逗号，第一个逗号前面的数字后添加 thousand，第二个逗号前面的数字后添加 million，第三个逗号前面的数字后添加 billion，以此类推，两个逗号之间最大的数为百位数形式。另外，百位和十位之间用and连接，十位和个位之间用连字符“-”连接，而且具体数字和数量单位名词连用时数量单位名词不可使用复数。所以本题23456，应读作twenty-three thousand, four hundred and fifty-six，故答案选A。
解析：B
【解析】
【详解】
句意：吉姆失败了两次，但是他想再试一次。考查序数词用法。A. a second再一B. a third 又一次 C. the second 第二D. the third第三。a +序数词是在前面数字的基础上再出现，而the序数词单指第几个。吉姆失败了两次，再一次用a third。故选B。
22．D
解析：D
【解析】
【详解】
句意：五分之三的人喜欢看电视剧《来自星星的你》，并且剧中的百分之七十的音乐很独特。本题主要考查分数的表达法。分子是基数词，分母是序数词，分子大于1，分母加s；五分之三的英语表达法是Three fifths，排除A、B；当主语部分含分数时谓语动词跟主语部分的名词一致，这里music是不可数名词，所以谓语动词用单数is．故选D。
【点睛】
分数的用法分数的表达形式为：基数词（分子）+序数词（分母），分子大于一时分母加s。考生在掌握基础知识的基础上结合语境可正确作答。
23．D
解析：D
【解析】
句意：今年我们在我们城市的中心已经种了成百上千棵树．表示具体几百时，数字＋hundred；hundreds of：表示模糊数字，数百的，成千上百的；结合句意和语境可知选D。24．B
解析：B
【解析】
试题分析：句意：上周五邀请了两百学生参加开业庆典。表示实指时，hundred, thousand，million用单数，后面不跟介词of；表示虚指时，hundred, thousand，million用复数，前不加数词，后跟介词of。本句表示实指：两百。主语students是谓语动作invite 的承受者，句子用被动语态。故选B。
【考点定位】考查数词辨析及动词的语态。
25．A
解析：A
【解析】句意：我们班五分之二的学生将要去下周在北京的夏令营。分数的表达方式是：用基数词+序数词表示，如果分子大于1,分母则要用复数形式，所以Two-fifths是正确的表达方式，分数引导的短语作主语，其谓语动词的数应根据分数后面的名词students来确定。所以选用be动词的复数形式，故选A。
点睛：全面总结一下分数的表达方式：首先，分数是由基数词和序数词构成——分子用基
数词，分母用序数词，分子超过“1”时，分母用复数。1/4 可写作a [one] fourth，也可写作 a [one] quarter，分数引导的短语作主语，其谓语动词的数应根据分数后面的名词来确定。
初中英语数词专项
数词讲解专项练习 1 数词的讲解 一、定义：表示数目或顺序 二、分类：分为基数词和序数词两种。表示数目或数量多少的词叫基数词；表示数目顺序的词叫序数词。 三、基数词的构成： 1）1-12的基数词是独立的单词，即：one ，two ，three ，four ，five ，six ，seven ，eight ，nine ，ten ，eleven ，twelve 。 2）13-19的基数词以-teen 结尾。如：fourteen ，seventeen 等，但13，15，18较特殊，13—thirteen, 15—fifteen, 18—eighteen 。 3）20-90的整十位均以-ty 结尾。如：sixty ，ninety ，但20，30，40，50，80较特殊，20—twenty, 30—thirty, 40—forty, 50—fifty, 80—eighty 。 4）十位数与个位数之间要加连字符号"-" ，如：28-twenty-eight ，96-ninety-six 。 5）百位和十位（若无十位则和个位）之间加and ，如： 148—one hundred and forty-eight 406—four hundred and six 6）hundred （百），thousand （千），million （百万），billion （十亿）等前面即使有具体的数词，several, some, many也不能在它们的后面加-s 。如：six hundred，eight million。如果表示不确定数目时，用hundreds of /thousands of /millions of /billions of +名词复数, 前面不能再加数字。 7）1000以上的数字，从后往前数每三位加一个逗号" ，" 第一个逗号前为千（thousand ），第二个逗号前为百万（million ），第三个逗号前为billion （十亿）。英语中无“万”这个词，我们可以用" 几十个千（thousand ）" 表示几万，" 几百个千（thousand ）" 表示" 几十万" 。如：2，510＝two thousand five hundred and ten 84，296＝eighty-four thousand two hundred and ninety-six 274，350＝two hundred and seventy-four thousand three hundred and fifty。 四、序数词的构成： 1）序数词一般是以与之相应的基数词尾加-th 构成，如：fourth, tenth, 但以下的这些基数词变为序数词时，有特别之处。 One —first, two —second, three —third, five—fifth, nine —ninth, twelve —twelfth 2）以_ty 结尾的单词，要先变y 为i, 在加-eth. 。如：thirty —thirtieth, fifty—fiftieth 3）以one, two, three 等结尾的多位数词，要将个位数变成序数词。如： twenty-one —twenty-first, one hundred and one—one hundred and first 注意：序数词前常用定冠词，有时还可以用不定冠词a/an 则表示" 又一" 的意思。（没有具体范围的限制）如： Mr. Brown has a second car. 布朗先生另外还有一辆车。 He has tried a second time. 他又尝试了一次。 五、数词的应用 1)时刻的表示:小时、点钟、分钟、秒钟要用基数词。 ①“几点钟”用基数词加o'clock 。o'clock 可省略。如:5点钟-five (o'clock ) ②“几点过几 分” , ≤30分钟" 用介词past 。如: 7:15— fifteen/ a quarter past seven 7:30— half past seven
初中英语语法数词详解(打印版)讲课讲稿
数词 . 1．基数词 （1）基数词的具体形式如下： A．从1——10 one，two，three，four，five，six，seven，eight，nine，ten． B．从11——19 eleven，twelve，thirteen，fourteen，fifteen，sixteen，seventeen，eighteen，nineteen. 注：标记为蓝色的单词特殊记忆，其他的词都是由其个位数形式后添加后缀-teen 构成。 C．从21——99 整数几十中除twenty，thirty, forty，fifty，eighty为特殊形式外，sixty，seventy，ninety都是其个位数形式后添加后缀-ty构成。表示几十几时，在几十和个位基数词形式之间添加连字符“-” 21 twenty-one 76 seventy-six D．百位数 个数基数词形式加“hundred”，表示几百，在几十几与百位间加上and． 101 a hundred and one 320 three hundred and twenty 648 six hundred and forty-eight E．千位数以上 “，”前 的数字后添加thousand（千），第二个“，”前面的数字后添加million（百万），第三个“，”前的数字后添加billion（十亿）。然后一节一节分别表示，两个逗号之间最大的数为百位数形式。 2,648 two thousand six hundred and forty-eight 16,250,064 sixteen million two hundred and fifty thousand sixty-four 5,237,166,234 five billion，two hundred and thirty-seven million，one hundred and sixty-six thousand，two hundred and thirty-four（注：只有百跟十之间才有and） （2）基数词的用法 A．基数词在表示确切的数字时，不能使用百、千、百万、十亿的复数形式；但是，当基数词表示不确切数字，如成百、成千上万，三三两两时，基数词则以复数形式出现。 There are hundreds of people in the hall． 大厅里有数以百计的人。 Thousands and thousands of people come to visit the Museum of Qin Terra-Cotta Warriors and Horses every day． 每天有成千上万的人来参观秦兵马涌博物馆。
新初中英语语法知识—数词的知识点训练(1)
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【英语】初中英语数词专题训练答案
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初中英语语法知识—数词的经典测试题(4)
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初中英语语法专项练习题之数词 1. 1). There are ___ days in a year. A. three hundreds sixty-five B. three hundreds and sixty-five C. three hundred and sixty-five D. three hundred and sixty five 2). There are____ students in this school. A. eight hundreds and forty-six B. eight hundred and forty six C. eight hundred and forty-six D. eight hundred forty-six 2. 1).______people visit this museum every day. A. Hundred B. Hundreds C. Hundred of D. Hundreds of 2).There are two___ people in the meeting room. A. hundred B. hundreds C. hundreds of D. hundred o 3). Every year ___ watch NBA on TV. A. million people B. millions of people C. millions people D. million of people 4). ____ trees have been planted in our school in the past 10 years. A. Thousands of B. Two thousands C. Thousand of D. Two thousand of 5). Look! There are ___ in the sky. A. thousand stars B. thousand of stars C. thousands of stars D. thousands of star 3. 1). My brother is in____.
新初中英语语法知识—数词的知识点训练及答案
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初中英语数词专项练习
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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:数词知识点总结数词分为基数词与序数词两类，表示数量多少得数词就是基数词,如ｏne(一），ｔwo（二），sｅｖen(七)等，表示顺序次第得数词叫序数词，如the fｉrsｔ（第一),the secoｎd(第二），the ｓeventh(第七). 在对数词进行复习得时候,同学们首先要会读会写所有基数词与序数词,以及与数词有关得时间表达法。对数词得考查，中考常采用单选题及听力题. （一)、序数词一般由基数词加th 构成 (二)、序数词得构成及用法： １、以下几个序数词较为特殊： fｉrst(第一)ｓeｃonｄ（第二)ｔhirｄ(第三)fiftｈ（第五) ｅiｇhth（第八）ｎｉｎｔh(第九)twelｆｔh（第十二） 2、以tｙ结尾得基数词变为序数词得构成方法就是：先将十位整数得基数词尾得-ｔｙ变成-tｉ，然后再加eｔh、 如：ｔｗenty twentiｅth（第二十) eigｈtｙeｉghtｉｅth（第八十） ３、基数词几十几变成序数词时,仅将个位数变成序数词，十位不变。 如：thirtytwo ｔｈirｔysecｏｎｄ(第三十二) sevenｔy－fｉve sｅveｎty-fifｔh（第七十五） 4、序数词得缩写形式，在阿拉伯数字后加上序数词得最后两个字母构成。 如：fifｔh ５th ｓecond ２nd 5、序数词前通常要用定冠词the。
６、ｈｕndｒed,thｏusand，ｍillioｎ,biｌｌion 等词在构成具体得数字时用单数形式。只有在表达笼统得多数时才加s，构成复数形式,前面不能加具体得数字。 如：three hundｒed seａts 三百个座位 ｈundｒedｓｏf 数以百计得,成百上千得thouｓａnds of 数以千计得，成千上万得 ｍillｉoｎｓｏf 数百万得billｉｏns ｏf 数十亿得 （三)与数词有关得时间表达法： 1、钟点表示法: ①顺读法 如：1:１5 one fｉfteen 3：30 thｒee ｔhｉrty ②倒读法(用pａsｔ/ｔｏ表示） 如:１:１5 ａｑuａｒｔer pａst one ３:30 half ｐａst threｅ 7：５6 ｆoｕr to eight ③表示钟点只用基数词,并且钟点前用介词at. 2、日期表示法： ①英语中日期得排列顺序就是：星期、月、日、年 如：20１６年3 月１7 日,星期一 Moｎday，Marcｈｔhe 17th，2０16、 ②在具体某一天前用介词oｎ 3、世纪、年代表示法
初中英语数词专项训练100(附答案)
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(完整word版)初中英语数词用法总结,推荐文档
英语------数词 ▲掌握分数、时间、日期的表达法。 【复习要点】 （一）基数词 1 one 11 eleven 100 a hundred 2 two 12 twelve 20 twenty 1000 a thousand 3 three 13 thirteen 30 thirty 1，000，000 a million 4 four 14 fourteen 40 forty 10，000，000 ten million 5 five 15 fifteen 50 fifty 100，000，000 a hundred million 6 six 16 sixteen 60 sixty 1，000，000，000 a billion 7 seven 17 seventeen 70 seventy 8 eight 18 eighteen 80 eighty 9 nine 19 nineteen 90 ninety 10 ten 说明： 1．13—19是由个位数加后缀-teen构成。注意其中13、15的拼写是thirteen和fifteen。2．20—90由个位数加后缀-ty构成，注意其中20—50的拼写分别是twenty, thirty, forty 和fifty;80的拼写是eighty。 3．其它非整十的两位数21—99是由整十位数加连字符“-”，再加个位数构成。如：81 eighty-one。 4．101—999的基数词先写百位数，后加and再写十位数和个位数。如：691 six hundred and ninety-one。 5．1000以上的基数词先写千位数，后写百位数，再加and，最后写十位数和个位数。 如：5893 five thousand eight hundred and ninety-three。在基数词中只有表示“百”、“千”的单位词，没有单独表示“万”、“亿”的单位词，而是用thousand（千）和million（百万）来表达，其换算关系为：1万=10 thousand;1亿=100 million; 10亿=a thousand million=a billion。6．多位数的读法： 1）1000以上的多位数，要使用计数间隔或逗号“，”。即从个位起，每隔三位加一个间隔或逗号。第一个间隔或逗号前是thousand（千），第二个间隔或逗号前是million（百万），第三个间隔或逗号前是a thousand million或a billion(十亿)。 2）每隔三位分段以后就都成了101—999。读的时候十位数（或个位数）的前面一般要加and。如： 888，000，000读作：eight hundred and eighty-eight million。 基数词的用法： 1. 基数词在句中的作用 基数词的作用相当于名词和形容词，在句中可作定语、主语、宾语（介宾）、表语、同
初中英语数词
初中英语数词 讲解 数词分为基数词和序数词两种。表示数目或数量多少的词叫基数词；表示数目顺序的词叫序数词。 一、基数词 1.基数词就注意以下几点： （1）几十几的基数词的十位数与个位数之间要用连字符“-”连接。如： eighty-five 85 twenty-six 26 （2）三位数的基数词须在百位和十位（若无十位则和个位）之间用and连接。如：three hundred and sixty-five 365 two hundred and six 206 （3）基数词的复数形式。当基数词hundred，thousand，million，billion等词前有详尽数词或several修饰时，必须用单数。如： several hundred year“s ago几百年前 two thousand students两千个学生 2.基数词的分外用法： （1）表示“几十年代”或“几十岁”时，用逢十的基数词的复数形式。如：in the 1990“s 20世纪90年代 i n one“s twenties在某人20多岁时 （2）用在习语中。如： in twos and threes三三两两地
二、序数词 序数词应注意的几点事项： 1.多位数的基数词变成序数词时，只需将末位基数词变成序数词，前边的基数词不变。 如： forty-two 42 forty-second第42 nine-hundred 900 nine-hundredth第900 2.当序数词用阿拉伯数字表示时，必须在数字后加上序数词的最后两个字母。如：21st第21 32nd第32 3.序数词前大凡要用定冠词the，如果序数词前用a或an时，则表示“又一；再一”（没有详尽范围的限制）。如： Though he had failed twice，he wanted to try a third time. 尽管他已失败了两次，他还想再试一次。 The little monkey had had three apples，and he wanted to eat a fourth one.那只小猴子已经吃了3个苹果，他还想再吃一个。 三、分数和百分数 1.分数 （1）分数的分子用基数词，分母用序数词。如： one fifth五分之一 one tenth十分之一 （2）当分子大于1时，分母用序数词的复数。如：
初中英语语法知识—数词的真题汇编及解析(4)
一、选择题 1．— 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 thousands 2．About _____________ of the students this year were born in the 1990s. A．three five B．three fifths C．third fifths D．third fifth 3．The year “1999” should be read “The year_______.” A．nineteen and ninety-nine B．nineteen ninety-nine C．one thousand nine hundred ninety-nine D．nineteen hundred and ninety-nine 4．—How much is the computer? —About three yuan. A．thousand B．thousands of C．thousands 5．—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 6．The old man began to learn to drive a car at the age of _______． A．sixty B．the sixtieth C．sixty years old D．sixties 7．—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 8．—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 9．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’ 10．--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 11．This is my ________ time visit to America. I have never been there before. A．one B．two C．first D．second 12．There are ____ floors in this building, and my flat is on the ____ floor. A．ten; five B．tenth; five C．tenth; fifth D．ten; fifth 13．Sally, this is ___ time you’ve asked me about that matter. What’s wrong with you?