初中英语语法知识—数词的知识点总复习有答案解析(3)
中考英语数词知识点总结
中考英语数词知识点总结一、基数词的用法1. 基数词表示数目时，如果数目为两位数以上的，十位数要用连字符“-”连接个位数，如“21-twenty-one”。
2. 基数词在表示年份时，常用的表达方法有两种，一种是一起读，如“1984-nineteen eighty-four”；另一种是将年份分为两部分，如“1999-nineteen ninety-nine”。
3. 基数词在表示日期时，月份前要加上序数词，如“June 1st”。
4. 基数词在表示时间时，还需注意以下几点：表示“整点”的时候，要用o'clock，如“three o'clock”；表示具体的分钟时，要用minutes，如“five minutes”。
5. 表示年龄的基数词时，要用“years old”来修饰，如“ten years old”。
6. 表示数量时，基数词在语序上要放在名词之前，如“ten books”。
二、序数词的用法1. 序数词表示次序时，要把“first、second、third”等序数词放在名词之前。
2. 序数词表示年月日时，也要放在名词之前，如“June 1st”。
3. 序数词在表示时间时，还需注意以下几点：表示绝对顺序时，要用序数词，如“first、second、third”；表示相对顺序时，要用比较级和“the”，如“the first”。
4. 表示数量时，序数词在语序上要放在名词之前，如“the first book”。
三、数词的注意事项1. 当数词修饰名词时，要放在名词的前面，且不加定冠词，如“three books”。
2. 当数词修饰不可数名词时，数词的表达方式要用“a+数词+of+不可数名词”的形式，如“a bottle o f water”。
3. 当数词修饰可数名词复数时，数词和名词要保持一致，如“five books”。
4. 当数词修饰名词时，要注意名词的单复数形式，如“one book”和“two books”。
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。
(完整版word)英语数词知识点总结含答案解析
（完整版word）英语数词知识点总结含答案解析一、初中英语数词1．There are 24 solar terms in a year. Grain Rain often starts in April, the ________ month of the year.A. ThirdB. fourthC. fifth【答案】 B【解析】【分析】句意：一年有24个节气。
谷物雨通常在一年中的四月开始。
A：Third 第三；B：fourth第四；C：fifth第五。
空格前有定冠词the与可数名词单数month，要用序数词。
根据 Grain Rain often starts in April ，可知四月份是一年中的第四个月，要用序数词fourth，故选B。
【点评】考查序数词辨析。
根据语境和生活常识，选择正确的序数词。
2．Did you know that the earth is home to ______ animals?A. millionB. millionsC. million ofD. millions of【答案】 D【解析】【分析】句意：你知道地球是几百万动物的家园吗？millions of，固定搭配，几百万的；数词+million，表示具体的……百万，此时million是单数形式；空前没有具体数词，因此用millions of，故选D。
【点评】考查数词，注意millions of的用法。
3．—When do you usually go to bed on school nights?—At around ________ o'clock. It's healthy to fall asleep before 10 p.m.A. nineB. ninthC. twelveD. twelfth【答案】 A【解析】【分析】句意：——上学的晚上你通常什么时候睡觉？——大约9点。
2021年初中英语语法知识—数词的知识点总复习有答案解析
一、选择题1．______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, is2．Mount Tai is so famous that ___ people visit it every day.A．hundred of B．seven hundreds of C．hundreds of D hundreds 3．—______________ do you read English newspaper?—At least ______________ a week.A．How long；one B．How often；twiceC．How many；once D．How much；third4．This is my ________ time visit to America. I have never been there before.A．one B．two C．first D．second5．__________ of his time __________ been spent on studies every day.A．Three fourths；has B．Three fourths；haveC．Third fours；has D．Thirds four；have6．---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 of7．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 8．So far， _______ of the students in our class _______ seen the film.A．three quarters; has B．two fifths; haveC．three quarter; has D．two fifth; have9．________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．—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 11．I’ve told him of that ______, but he always forget it.A．a hundred time B．hundred timesC．hundred of times D．hundreds of times12．---How often does the boy play sports?---__________A．Once a week B．Four hours C．In an hour D．At 7pm13．The environment here becomes better and better. ______________ birds are coming back. A．Thousands of B．Thousand ofC．Thousands D．Thousand14．Two ____ students ____ to the opening ceremony last Friday.A．hundreds; were invited B．hundred; were invitedC．hundreds of ; invited D．hundred of; invited15．— How was your weekend? —Great ! It was my grandfather’s ______birthday. He was born _____.A．ninety, in the 1920 B．ninetieth, in the 1920sC．the ninetieth, on the 1920s D．nintieth, on the 192016．Two students to the opening ceremony last Friday.A．hundreds, were invited B．hundred , were invited C．hundreds of, invited 17．－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 of18．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．—Hi, Jack! What about playing soccer after school?—I’d love to, but it’s my grandfather’s ______ birthday and we will h ave a celebration. A．ninetith B．ninetieth C．nintieth20．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 third21．_________ 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．visitors came to take photos of Hongyadong during the vacation.A．Thousand B．Thousand of C．Thousands D．Thousands of 23．There are ________ people in the supermarket. It's so crowded.A．hundred B．hundreds C．hundred of D．hundreds of24．一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．This is our _______ school year, we are going to graduate in two months.A．third B．three C．the third【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：我们班五分之二的学生将要去下周在北京的夏令营。
初中英语语法知识—数词的知识点总复习有答案(3)
一、选择题1．The environment here becomes better and better. ______________ birds are coming back. A．Thousands of B．Thousand ofC．Thousands D．Thousand2．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．—How much is the computer?—About three yuan.A．thousand B．thousands of C．thousands5．Mount Tai is so famous that ___ people visit it every day.A．hundred of B．seven hundreds of C．hundreds of D hundreds 6．—______________ do you read English newspaper?—At least ______________ a week.A．How long；one B．How often；twiceC．How many；once D．How much；third7．---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．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 9．— 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 10．—How long is the bridge?—About ______ long.A．two thousand meter B．two thousand metersC．two thousands meter D．two thousands meters11．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 12．About _____________ of the students this year were born in the 1990s.A．three five B．three fifths C．third fifths D．third fifth13．I’ve told him of that ______, but he always forget it.A．a hundred time B．hundred timesC．hundred of times D．hundreds of times14．In our class _____ of the students _____ girls.A．third fifths; is B．third fifth; are C．three fifth; is D．three fifths; are 15．—When is Mother’s Day?—It’s on ___________ Sunday in May.A．two B．the second C．twelve D．the twelfth16．______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, is17．I didn’t know Miss Yang was years old until she told me about that.A．fifty B．fifties C．fiftieth18．---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 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．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．60021．—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．—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; fortieth23．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;: third24．一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．________ trees have been planted near here, so the air is very fresh.A．Two hundreds B．Hundred ofC．Hundreds of D．Hundreds【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】【详解】试题分析：句意：这里的环境越来越好。
中考考点_数词知识点汇总(全)
中考考点_数词知识点汇总(全)一、初中英语数词1．A year is divided into ______ months. September is the _____ month of the year.A. twelve, ninthB. twelve, ninethC. twelfth, ninthD. twelfth, nineth 【答案】 A【解析】【分析】句意：一年分为十二个月。
九月是一年中的第九个月。
第一个空格后有month，月，可数名词复数monthes，其前要用基数词表示数量。
twelve十二；第二个空格前有定冠词the，空格后有可数名词month，单数，要用序数词表示顺序。
要用ninth第九。
根据故选A。
【点评】考查基数词和序数词。
注意基数词表示数量，序数词表示顺序。
2．There are ________________ months in a year. My birthday is in the ________________ month.A. twelve; twelveB. twelfth; twelfthC. twelve; twelfthD. 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。
3．We gave away ________ books to the school library last year.A. six thousandsB. six thousandC. six thousands ofD. 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。
石家庄市初中英语语法知识—数词的知识点总复习附答案解析
一、选择题1．______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, is2．Two-child policy has been carried out. Most parents are planning to have their child. A．one B．two C．first D．second3．I think we've learnt English words so far.A．hundred of B．nine hundreds C．hundreds of4．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-nine5．—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．There are _______ months in a year. May is the _______ month of a year.A．twelfth; five B．twelve; fifth C．twelve; fiveth D．twelfth; five7．– 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 8．——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;five9．This is my ________ time visit to America. I have never been there before.A．one B．two C．first D．second 10．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；first11．—How long is the bridge?—About ______ long.A．two thousand meter B．two thousand metersC．two thousands meter D．two thousands meters12．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 thousands 13．—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 14．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．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 16．— How was your weekend? —Great ! It was my grandfather’s ______birthday. He was born _____.A．ninety, in the 1920 B．ninetieth, in the 1920sC．the ninetieth, on the 1920s D．nintieth, on the 192017．________ runners took part in the half marathon(半程马拉松) in Haikou in April. A．Hundred B．Hundreds C．Hundreds of18．—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 19．—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 time20．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．60021．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 22．Father’s Day is on _________ Sunday of June.A．three B．the three C．third D．the third23．Jim failed twice, but he wanted to have __________ try．A．a second B．a third C．the second D．the third24．一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．________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【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：我们班五分之二的学生将要去下周在北京的夏令营。
初三中考英语数词总复习
初三中考英语数词总复习数词的基本概念- 数词是表示数量的词语。
在英语中，数词可以表示具体的数目，也可以表示顺序或比例。
- 数词通常用于描述人数、年龄、日期、时间、度量单位等。
基数词与序数词- 基数词表示具体的数目，例如：one, two, three。
- 序数词表示顺序或次序，例如：first, second, third。
基数词的用法- 基数词可以用于表示数量，例如：There are seven apples on the table.seven apples on the table.- 基数词还可以用于描述年龄，例如：I am twelve years old.twelve years old.- 基数词也可以用于表示日期，例如：Today is the fifth of May.fifth of May.序数词的用法- 序数词表示顺序或次序，例如：He is the third person to arrive.third person to arrive.- 序数词也常用于表示日期的顺序，例如：Today is the fourth of July.fourth of July.特殊的数词表达方式- 零：zero- 十：ten- 十一：eleven- 十二：twelve- 十三：thirteen- 十四：fourteen- 十五：fifteen- 十六：sixteen- 十七：seventeen- 十八：eighteen- 十九：nineteen- 二十：twenty数词的应用技巧- 注意基数词和序数词的区别，基数词表示具体数量，而序数词表示顺序或次序。
- 注意特殊的数词表达方式，例如十和十一到十九的读法。
- 数词可以用于描述人数、年龄、日期、时间、度量单位等，要根据具体语境选择合适的数词。
以上是初三中考英语数词总复习的简要内容，希望能对你有所帮助！。
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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．I think we've learnt English words so far.A．hundred of B．nine hundreds C．hundreds of3．—How much is the computer?—About three yuan.A．thousand B．thousands of C．thousands4．—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 5．Christmas Day is on ______ of December.A．twenty-five B．twenty-fifth C．the twenty-fifth6．–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; twelfth7．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 of8．--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 oldB．1980s； eight-year-oldC．the 1980s； eight-year-oldD．the 1980s； eight-years-old9．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; fiftieth 10．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；first11．Sally, this is ___ time you’ve asked me about that matter. What’s wrong with you? A．three B．the three C．the third12．---How often does the boy play sports?---__________A．Once a week B．Four hours C．In an hour D．At 7pm13．I hear ____ foreign students will come to our school and they are in the ____ grade. A．eight, eighth B．eight, eight C．eighth, eighth14．______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．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 half16．Thanks to Project Hope, ________ children have better lives.A．thousands of B．thousands C．thousand of17．－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 of18．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．¥ 29019．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 third20．---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 of 21．—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; fortieth22．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;: third23．一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; seventieth24．A year is divided into ______ months. September is the _____ month of the year. A．twelve, ninth B．twelve, nineth C．twelfth, ninth D．twelfth, nineth25．________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【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．C解析：C【解析】句意：我认为我们迄今为止已经学了好几百个英语单词。
hundred“百”有数词修饰，表示具体数字时，不加s；表示约数时，与of连用，hundreds of好几百，故选C。
3．A解析：A【解析】试题分析：句意:-这台电脑多少钱？-大约三千元。
thousand 千，它主要有两个用法，一是和数词连用表示具体数量时，不用复数形式；二是构成短语thousands of ，成千上万的。
这里考查的是第一个用法。
故选A。
考点：考查数词。
4．C解析：C【解析】句意：——我听说今年九名外国学生将来我们的学校。
——对。
他们是第九批交换生。
第一空表示九名学生，故用基数词nine。
第二空根据定冠词the，表示第九批交换生，故用序数词ninth，故选C。