1、中考英语总复习中考英语总复习 数词复习Number 学习目标学习目标 1 1、知道数词的分类及用法、知道数词的分类及用法 2 2、掌握基数词的形式及读法、掌握基数词的形式及读法 3 3、掌握序数词的形式、掌握序数词的形式 4 4、掌握分数、小数、百分数读法、掌握分数、小数、百分数读法 5 5、高频考点详解、高频考点详解 1、知道数词的分类及用法、知道数词的分类及用法 ? 1.分类: 数词数词 2.基数词用法:表示事物数量的多少。如:基数词用法:表示事物数量的多少。如: one, two, four hundred, 3.序数词用法:表示事物排列先后的顺序(第几)如:序数词用法:表示事物排列先后
2、的顺序(第几)如:first, second, twentieth, twenty-first. 在使用序数在使用序数词时通常前面要加词时通常前面要加the;但如果序数词前出现不定冠词但如果序数词前出现不定冠词a、an时则表示时则表示“又一再一又一再一” 基数词基数词 序数词序数词 分数分数 小数小数 百分数百分数 2、掌握基数词的形式及读法、掌握基数词的形式及读法 ?(1)0-12为基数词,有其各自的形式,是构成数词的重要为基数词,有其各自的形式,是构成数词的重要部分。如:部分。如:seven,eight,nine,ten,eleven,twelve (2)13-19都以都以-teen结尾,
3、单词中的两个音节都是重读音。结尾,单词中的两个音节都是重读音。如:如: thirteen,fourteen,fifteen,sixteen,seventeen,eighteen, nineteen (3)20-90十位数的整数都以十位数的整数都以-ty结尾;结尾;21-99在十位与各位在十位与各位之间加连字符号之间加连字符号“-”。如:。如:twenty-one,seventy-six (4)三位数数词三位数数词: 百位和十位百位和十位(若无十位则和个位若无十位则和个位)之间用之间用and连接连接,十位和个位间用十位和个位间用“-” 连接。如:连接。如:861 eight hundred an
4、d sixty-one; 204 two hundred and four (5) 1,000以上的数字以上的数字,从右往左数从右往左数,三位一组三位一组,每三位数加一逗每三位数加一逗号号“,”;第一个第一个“,”号前为号前为thousand(千千), 第二个第二个“,”号前号前为为million(百万百万),第三个第三个“,”号前为号前为billion(十亿十亿) 。如。如: 万以上的数字读法特点万以上的数字读法特点 ?6, 500, 431, 729 billion million thousand hundred 注意每三个数为一个单位,按照百、注意每三个数为一个单位,按照百、 十、个向
5、下读。十、个向下读。 6,500,431,729 billion six billion, million thousand hundred five hundred million , four hundred and thirty-one thousand , seven hundred and twenty-nine 3、序数词的形式、序数词的形式 基数词基数词 one two three five eight nine twelve 基数词基数词 序数词序数词 first second third fifth eighth ninth twelfth 缩略缩略 1st 2nd 3rd
6、5th 8th 9th 12th 序数词序数词 twenty twentieth twenty-one twenty-first one hundred one hundredth two hundred and thirty-nine two hundred and thirty-ninth 基变序顺口溜基变序顺口溜 基变序基变序,有规律有规律, 词尾加上词尾加上th。 123, 特殊记特殊记, 词尾字母词尾字母t,d,d; 8去去t, 9去去e, f来把来把ve替;替; 整十整十y换换ie, 若是遇到几十几,若是遇到几十几, 只把个位变成序,各位牢记别忘记。只把个位变成序,各位牢记别忘记。
7、 4、分数,小数,百分数、分数,小数,百分数 ?分数:分数:由基数词和序数词合成。分子是由基数词和序数词合成。分子是1时,分子用基数词,时,分子用基数词,分母用序数词;分子不是分母用序数词;分子不是1时,分子仍用基数词,分母用序时,分子仍用基数词,分母用序数词的复数形式。如:数词的复数形式。如: 7/8 seven eighths。 注意几个常见表达法:注意几个常见表达法:1/2 a (one) half 1/4 one-fourth a (one) quarter 3/4 three fourths three quarters 半年半年 half a year 一年半一年半 one and
8、 a half years one year and a half 小数:小数:小数点读小数点读point,零读,零读o或或zero,小数点后的数字按个,小数点后的数字按个位基数词依次读出。位基数词依次读出。0.6 zero point six 百分数:百分数:百分数由基数词加百分数由基数词加percent表示。表示。 不论基数词是多不论基数词是多少,少,percent始终用原形。如始终用原形。如:0.8%, 读作读作zero point eight percent;17%读作读作seventeen percent 五、高频考点之一五、高频考点之一 hundred, thousand, mil
9、lion,billion hundred, thousand, million,billion ?这几个词前有确切数词时,这几个词前有确切数词时, 遵循遵循“两个无两个无”原则,原则,即即无无 “s”,无,无“of”;如:;如:three hundred people ,nine million books 但是一定注意:但是一定注意:如后面是表示总体的人或物,前面如后面是表示总体的人或物,前面的数词是表示总体中的一部分时,要用的数词是表示总体中的一部分时,要用 of。如:。如:seven hundred of the workers 这几个词前无确切数词时,则遵循这几个词前无确切数词时,则遵
10、循“两个有两个有”原则,原则,即即有有 “s”和和“of”。 如如: many thousands of trees, millions of birds 1. (2004年河北省中考试题年河北省中考试题) Nine _ pounds a weD A. hundred of B. hundreds of C. hundreds D. hundred 2. (2012年苏州中考试题年苏州中考试题)The chairperson received about three applications to join A the Blind Watching Club. A. hundred B. hu
11、ndreds of C.hundred of D.hundreds 3. of the students are girls. B A.Three hundred B.Three hundred of C.Three hundred D.Three hundreds of 五、高频考点之二五、高频考点之二 基数词基数词+名词(名词(+形容词)形容词) ?1.1.“基数词基数词+ +名词名词” 的合成形容词作定语,中间有的合成形容词作定语,中间有连字符连字符“”, ,当中的名词用单数。如:当中的名词用单数。如: a seven-day holidaya seven-day holiday , a
12、 five-star hotel, a five-star hotel, a 3-day trip, an 800-word composition a 3-day trip, an 800-word composition 2.2.“基数词基数词+ +名词名词+ +形容词形容词”,主要表计量,在名词,主要表计量,在名词前做定语时,名词用单数,词中间用连词符号前做定语时,名词用单数,词中间用连词符号 “- -”;如:;如:an 18-year-old girl, womens an 18-year-old girl, womens 800-metre race800-metre race, a
13、n 80-metre-long bridg an 80-metre-long bridg 注意:在联系动词后作表语时,名词用复数,不用注意:在联系动词后作表语时,名词用复数,不用连词符。如:连词符。如:The classroom is 7 meterThe classroom is 7 meter s s long, long, 6 meter6 meters s wide and 3 meter wide and 3 meter s s high. high. 1.(2011连云港中考试题连云港中考试题)-How amazing the noodle is! -Yes,it is _, an
14、d breaks the Guinness World D Rocord as the longest handmade noodle. A. 1704-meter-long B. 1704-meters-long C. 1704 meter long D. 1704 meters long C 2. (2012江苏中考试题江苏中考试题) He is only boy. He isnt old enough to take care of himself. A. a 8-year-old B. a 8-years-old C. an 8-year-old D.an 8-years-old 五、
15、高频考点之三五、高频考点之三 倍数和分数倍数和分数 1倍数:倍数:表示表示“一倍一倍”once;表示;表示“两倍两倍”twice;表示;表示“三三倍倍”或或“三倍以上三倍以上”的倍数用的倍数用times。如。如: 三倍三倍 three times; 常常用句型:用句型: ?(1). 数词数词+times形容词形容词(副词副词)比较级比较级than. 如:如:The car runs twice faster than that truck. ?(2).数词数词+ timesas形容词或副词原级形容词或副词原级as. 如如:The big box is six times as heavy as
16、 the small one. ?(3).数词数词+ timesthe名词(名词(size, height, weight, length, width)of /从句从句.如:如:The earth is 49 times the size of the moon. This street is four times the length of that one. ?2. 分数:分数:“分数分数(包括百分数包括百分数)名词名词”做主语时,谓语动词的做主语时,谓语动词的单复数取决于名词,名词为复数,动词用复数;名词为单数或单复数取决于名词,名词为复数,动词用复数;名词为单数或者不可数名词,动词用
17、单数。如:者不可数名词,动词用单数。如: ?Two thirds of the buildings are tallers than before. ?D 1.(2010兰州中考试题兰州中考试题)I think _ of the materials I listened to at the beginning of the exam _ easy. A. three fourths, is B. third four, are C. three fourths, are D. three fourth, are 2.(2012杭州中考试题杭州中考试题)We have two ears and
18、one mouth so that we listen we speak. B A. as twice much as B. twice as much as C. as much as twice D. as much twice as 2.(2011青海中考试题青海中考试题) of the sand in that D district covered with trees and grass. A. Two fifths, are B. Two fifth are C. Two fifth, is D. Two fifths, is ?1. 编号表示法:(1)编号在前,名词在后,用序数词
19、,前面有the;(2)编号在后,名词在前,用基数词,注意首字母大写;(3)房间号码和电话号码要一个一个分别读。如:第一课 The First Lesson(句中不大写),Lesson One; Room 305 2. “几十”的复数形式可以表示:(1)几十多岁 - in + one s + 数词复数(in his forties2)年 代- in + the +数词复数in the nineties 3.时刻表示法:(1)顺读法, (2)逆读法, (3)a quarter与half 4.“每隔“的两种结构:(1)every+基数词复数名词 (2)every + 序数词单数名词。如:每隔三天(每
20、四天)every four days或 every fourth day 5.“another基数词名词的复数”或者“基数词more名词”表示在一定基础上再增加一定的数量。如:two more boys another two boys。 6. 基数词和序数词的基本用法 五、高频考点之四五、高频考点之四 1.(2012铜仁中考试题铜仁中考试题)About of the students in Grade Nine were born in the . A. three five;1996 B. three fifths;1990s C. three fifth;1997 D. third fi
21、fths;1990s 2.(2012自贡中考试题自贡中考试题)-I hear your friend is visiting Sanya again,Is it the second time for him? -Yes, and he will come for time next spring. A A. a third B. a second C. the third 3.(2011达州中考试题达州中考试题)-If a=4,b=5,whats the answer to the question a+2ab+1=? - . B A. Forty-fifth B.Forty-five C. Twenty-three D.One hundred and twenty-one Thank you for your listening! Bye-bye!