英语中数词-基数词序数词.ppt

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1、根据中文注释或首字母提示，用所学单词的正确形式填空。,1.The first month in a year is J_.2.We have an Art F_ each year.3.June 7th is his b_.4.School starts in S_(九月).5.This is my friend.She likes to p_ chess.6.Today Im too b_.I have no time to play football.7.All my classes f_(结束)at four thirty.8.How many m_(月)does a year have

2、?Twelve or thirteen.9.We need eat a lot of v_ and fruit.10.I have many f_ at school.,anuary,estival,irthday,eptember,lay,usy,inish,onths,egetables,riends,11.How many d_ are there on the desk?12.He often h_(帮助)me with my English.13.Are you f_(空闲的)this afternoon?14.Playing basketball is not very easy.

3、Its d_.15.The classroom is not big.Its s_.16.How m_ are these yellow jackets?17.Kate likes the cat very much.It is her f_ animal.18.I dont know their telephone n_.19.Its time to have b_.You must get up now.20.I have eggs,chicken for lunch,so I eat very w_(好)today.21.Jack plays sports every day,so he

4、 is very h_(健康的).,ictionaries,elps,ree,ifficult,mall,uch,avourite,umber,reakfast,ell,ealthy,主要分为基数词和序数词两类。,数词,1.从110 one,two,three,four,five,six,seven,eight,nine,ten,2.从 1119 eleven,twelve,thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen,这里除 eleven,twelve,thirteen,fifteen,eighteen为特殊形式外

5、,fourteen,sixteen，seventeen,nineteen都是由其个位数形式后添加后缀-teen构成。,基数词:表示数目的词称为基数词。其形式如下：,3.从 2099 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 4.百位数 个数基数词形式加“hundred”。100 one hundred/a hundred 表示几百几十几，在几十几与百位

6、间加and。,101 648,six hundred and forty-eight,a hundred and one,口诀,基数词要注意,一到十二逐个记;从十三到十九,teen跟几(个)走;thirteen,fifteen辨仔细,eighteen只有一个t;二十到九十,ty跟在几后面;twenty,thirty重点记,forty,eighty去u、t;怎样拼写几十几?连字(符)-横莫丢弃,百(位)十(位)and来连替。,813294067300345,three hudred and forty-five,1016307899,eight,thirteen,twenty-nine,fort

7、y,sixty-seven,three hundred,ten,sixteen,thirty,seventy-eight,ninety-nine,序数词是指表示顺序的数词。,1.从第一至第十九：one firstthree third five fifth seven seventhnine ninth eleven elevenththirteen thirteenth fifteen fifteenthseventeen seventeenth nineteen nineteenth,six sixth,ten tenth,twelve twelfth,fourteen fourteent

8、h,sixteen sixteenth,eighteeneighteenth,除了first,second,third,fifth,eighth,ninth,twelfth外，其它的序数词都是由其相对应的基数词后面添加“th”构成。,two second,four fourth,eight eighth,2.从第二十至第九十九 整数第几十的形式由其对 应的基数词改变结尾字母y为ie,再加“th”构成，但第十是tenth。表示第几十几时,用几十的基数词形式加上连字 符“-”和个位序数词形式一起表示。,twentytwentieth thirtythirtieth,thirty-first 第三十

9、一fifty-sixth 第五十六seventy-third 第七十三 ninety-ninth 第九十九,表示第几百几十几时，由基数词的形式变结尾部分为序数词形式来表示。,one hundred and twenty-first,第一百二十一,一二三,特殊记;五和十二很容易,f来把ve替;八去t,九去e,末尾都加th;遇到几十几,只变个位就可以;遇到整几十,改y为ie,末尾仍加th。,口诀,序数词的缩写,其中lst，2nd，3rd为特殊形式，其它的都是 阿拉伯数字后加上th。,firstlst second2nd third3rd fourth4thsixth6th twentieth20th twenty-third23rd,第三第十二第十九第二十第四十九第一百零八第三百七十五,第十第十四,third,twelfth,nineteenth,twentieth,forty-ninth,one hundred and eighth,three hundred and seventy-fifth,tenth,fourteenth,