数词专项复习

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1、数词专项复习(二）1.说出下列词的基数词和序数词12________/__________13________/__________20________/__________40________/__________23________/__________twelvetwelfth课前复习：thirteentwentiethtwentyfortiethfortytwenty-threetwenty-thirdthirteenth课前复习：1.Ifyougooutatnight,you’llbeabletosee____stars.A.thousandsofB.thousa

2、ndofC.ninethousandsof2.You’vedoneittwice.Whynottry____time?A.threeB.thirdC.athirdAC数词的应用1.表分数。口诀：分子基数词、分母序数词，分子大于1，分母加s。eg.1/32/3onethirdtwothirds3/5threefifths5/7fivesevenths1/2ahalf1/4aquarter1)Onethirdofthestudents___girls.2)Onethirdofthemilk____mine.注意：areis（2010年无锡)Nearly___oftheeart

3、h__coveredbysea.threefourth;isthreefourths;isthreefourths;are2.表日期顺序：月，日，年.eg.在1949年10月1日onOctober(the)1st,nineteenforty-nine3.表时间1.顺读法：2.倒读法：threetwenty-five1)(<30分钟)用past：几点过几分3:253:30twenty-fivepastthreehalfpastthree2)(>30分钟)用to：几点差几分3:354:55twenty-fivetofourfivetofive3:25注意：3:153:45thr

4、eefifteenaquarterpastthreethreeforty-fiveaquartertofour4.表编号：5.表示小数：18.38eighteenpointthreeeight21.49twenty-onepointfournine207房间：Room207(twooseven)第五课：LessonFive=thefifthlesson6.两组与数词有关的介词短语：a.in+the+数词的复数形式表年代inthe1980sb.in+物主代词+数词的复数形式在20世纪80年代在她30多岁时inherthirtiesMary’sunclewenttoFrance

5、____.A.inhisfortiesB.inhisfortyC.athisforrties翻译下列词组：1.一个13岁的女孩2.一个4天的假期3.一年半4.两个半小时5.在她九岁生日时6.在十二世纪a13-year-oldgirla4-dayholidayayearandahalfoneandahalfyearsonherninthbirthdayinthetwelfthcentury实战演练