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ID:53601042
大小:1.92 MB
页数:10页
时间:2020-04-20
《基数词和序数词.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、CanadaOttawaFranceParisJapanTokyoRussiaMoscowtheUKLondontheUSAWashingtonD.ChouseGardenbalcony基数词1.0-12是独立的单词。2.13-19是以-teen结尾的。3.20-90这些整十的基数词以-ty结尾。4.几十几的基数词十位和个位中间加连字符“-”。如:twenty-one读下列数字:23344658697183925.三位数的基数词需在百位和十位之间加and.如:132----onehundredandthirty-two.208----twoh
2、undredandeight读下列数字:1482373024095146787658929256.1000以上的数字,从后往前,每三位加一个逗号,依次为thousand,million,billion.如:3,720---threethousandsevenhundredandtwenty2,630,982---twomillionsixhundredandthirtythousandninehundredandeighty-two年份的读法:1.一般情况分两位来读,如1880,可以读作:eighteeneighty,1979可以读作nine
3、teenseventy-nine2.也可以按数字读,如1000,可以读作onethousand,2007可以读作twothousandandseven1900nineteenhundred1904nineteenofour1976nineteenseventy-six2000twothousand2008twothousandandeight1840eighteenforty19031800199620092050nineteenothreeeighteenhundrednineteenninety-sixtwothousandandnine
4、twentyfiftySayandwritetheseyearsinEnglish.1820eighteentwenty序数词基变序有规律,一般加上th,1,2,3特殊记,单词结尾t,d,d,8去t,9去e,f来把ve替,如果以y为结尾,先把y变ie,然后再加th,如果遇到几十几,只变个位就可以。练习:1.onetwothreefivesix2.eightninetwelvethirteenforty3.fifty-sevenonehundredtwothousandandtwofivemillionthreehundredandsevent
5、y-one注意:序数词前常常加the。89th35th18th64th32nd71steighty---ninththirty---fiftheighteenthsixty---fourththirty---secondseventy---firstLet’spractice
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