2021年中考英语语法复习资料 第一部分 词法 专题四 数词.doc

中考专题四：数词基数词: 表示人或事物数量多少的词.序数词: 表示人或事物的顺序的词.一. 基数词.1.基数词的读法. 1)1-12 : one two three four five six seven eight nine ten eleven twelve 2)13-19: 词尾加-teen :thirteen fourteen fifteen sixteen seventeen eighteen nineteen 3)20,30,40,50,60,70,80,90 : 逢十词尾加-ty :twenty thirty forty fifty sixty seventy eighty ninety 4)21-99: 在十位与个位之间加连字符构成. 21- twenty-one 99-ninety-nine 5)101-999 :先说几百, 再加and ,再加末尾两位数或个位数. 101-one hundred and one 238-two hundred and thirty-eight 6)1000以上的数:先将数字从右往左数,每三位数用一个逗号隔开, 从右往左第一个逗号表示 “千”读thousand 第二个逗号表示 “百万”读million 第三个逗号表示 “十亿”读billion 18,657,421-eighteen million, six hundred and fifty-seven thousand, four hundred and twenty-one.二. 序数词基数词变序数词 口诀: 基变序,有规律,词尾要加th .一二三,特殊记,词尾分别tdd(first second third ) 八去t ,九去e,ve要用f替.ty变作tie,再加th莫忘记. 若遇几十几,只变个位就可以.三. 数词的应用.1.表编号. 结构:名词(首字母要大写) + 基数词 = the +序数词 +名词 Lesson One = the first lesson 注：有些编号，一般仅用第一种表达法。 Room 101 101号房间2.序数词前一般加定冠词the 但序数词前与不定冠词a /an 连用时,表示 “又一,再一” Youve done it three times .Why not try _fourth time? A.a B.an C.the D. /3.数词前加every ,表示每/每隔 . every ten days =every ninth day 每十天(每隔九天) 注:every +基数词 +复数名词 = every + (序数词-1) +单数名词4.基数词的复数形式表示年代和年龄 1)表示年代: in the + 年份的复数 在几世纪几十年代.在十九世纪七十年代. _. 2)表年龄: in ones + 整十的复数 表示在某人几十岁时在他四十岁时: _.5. hundred / thousand /million /billion 1).若hundred / thousand /million /billion 前有基数词时,其后不加s,也不加of .若没有时 ,既加s 也要带of .Every year _ visitors come to China. There are two _ students in our school. A.thousand B.thousands C.thousands of D.thousand of 2).若其前有a few 、many、several 修饰时，通常用复数，后接of. 3).若名词前有the修饰时，用单数，后接of Two _the students in our school are from the countryside. A.hundred B. hundred of C.hundreds of D.hundreds 6.几个半的表达法: 基数词 + and + a half +名词复数 = 基数词 +名词(单数/复数) +and +a half two and a half hours = two hours and a half 7.时刻表达法: 1)整点: 基数词 + oclock 2)几点几分: A).直接读法: 先读小时 ,后读分钟 3:25 - three twenty-five B).间接读法: a)30分钟. 分钟+ past + 小时 3：25 -twenty-five past three b)30分钟. ( 60-分钟 )+ to + (小时数+1) 3:55 - five to four c) 30 分钟 = half 15分钟=a quarter 45分钟= three quarters 3:30 -half past three 3:15-a quarter past three 3:45 -a quarter to four 8.日期表达法: 结构: 1).月 日,年 (日用序数词,年用基数词) 注:年份的读法: 先读前两位数,再读后两位数. 读日时要加the.1900-nineteen hundred 1807-eight and seven (eight o seven)2008-two thousand eight 2007年3月21日.- March the twenty-first, two thousand and seven. 2).日 月 年 (the +序数词+of +月, 年)2007年3月21日-the twenty-first of March ,two thousand and seven.9.分数词的表达法: 1).结构: a).分子用基数词,分母用序数词. b).当分子大于1时,分母加s. 3/4- three fourths (three-fourths) 2).注意:a).分数词的几种特殊形式. 1/3one third = a third 1/4one fourth = a quarter 1/2one second = a half 3/4three fourths = three quarters b).分数词作主语时, 谓语动词根据分数词后面的名词来确定. Two fifths of the milk _(be ) drunk by Tom . One third of the students _(be )girls .练习题1 -How many workers are there in your factory? -There are two _. A. hundreds B. hundred C. hundred of D. hundreds of2 About _ students in our class can describe that place in English. A. three-fifths B. three-fifth C. third-five D. third-fifths3-Can you write the number eighty-five thousand, six hundred and twenty-six? -Yes, it is _. A. 856620 B. 85626 C. 58662 D. 586264. When was the PRC founded? It was founded on _. A. July 1, 1921 B. October 1, 1949 C. August 1, 1927 D. May 1, 19225. _ Chinese are looking for ways to learn English well before Beijing 2008 Olympics. A. Thousand B. Thousands C. Thousand of D. Thousands of6Mr Zhang teaches at Middle School.A. a No.5 B.No.5 C. the No.5th D.5th No 7John lives on floor.A. twenty B. twentieth C. the twentieth D. the twentyth 8He has worked on the farm for years.A. two and half B. two and a half C. a half and two D. two halves and a 9Xiao Mao and Da Mao are in .A. team Fourth B. the team Four C. Team Four D. Four team 10Sorry, had been sold out.A.42 size B. Size 42 C.the 42 size D. the size 42 11It is said that SARS has killed more than _ people worldwide. A. three hundreds B. three hundreds C. three hundreds D. three hundred12-What do you think of a war, Li Ming? -Ive no idea. But its a fact that _ people had to leave their hometown during the War on Iraq. A. three millions B. million of C. millions of D. several millions13 We all think that the _ century will bring us more hopes. A. twenty-first B. twentieth-first C. twenty-one D. twentieth-one14 Both of the two rulers are broken. I want to buy a _one. A. three B. third C. forth D. /15. I heard the sports meeting has been put off until _, hasnt it? A. the 3 and 4 B. the 3th and 4 th C. the 3 rd and 4 th D. four and five16. _ of the earth _ made up of oceans. A. Two-third; is B. Two-thirds; is C. Two-third; are D. Two-thirds; are17. Since 1964, _ satellites have been sent into space. A. dozens of B. four dozens C. dozen of D. several dozens18. Jack Booth is a _ man. A. 21-years-old B. 21 years old C. 21-year-old D. 21 year old19. Ive lived here for about _.A. two and a half year B. two and a half years C. two year and a half D. two years and half20-Dad, whats the sea like? -Well, its large and full of water. It covers about _ of the earth. A. one third B. three quarter C. three-fourth D. three quarters5