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第二部分,语法专题剖析,专题五,数词,2023,年安徽中考英语总复习二轮专题课件,(近10年未考),考点透析,常见基数词与序数词对照表,onefirst,twosecond,threethird,fourfourth,fivefifth,sixsixth,sevenseventh,eighteighth,nineninth,tententh,eleveneleventh,twelvetwelfth,thirteenthirteenth,fourteenfourteenth,fifteenfifteenth,sixteensixteenth,seventeenseventeenth,eighteeneighteenth,nineteennineteenth,twentytwentieth,thirtythirtieth,fortyfortieth,fiftyfiftieth,sixtysixtieth,seventyseventieth,eightyeightieth,ninetyninetieth,续表,基变序,有规律,末尾加上,-th,;,一二三,特殊记,词尾分别,t,d,d,;,八去,t,,九去,e,,,ve,要用,f,替;,以,y,结尾变,-ie,,后跟,-th,莫忘记;,若想表示几十几,只变个位就可以。,考向1,基数词,(1),表示数量:,表示人或事物的确切数量,用基数词可数名词单数/复数。如:one,apple一个苹果;two,pears两个梨。,(2),表示时刻:,表示“点”用“基数词o,clock”,如:nine,o,clock,九点钟;,表示“点过分”时,若分钟数小于或等于30分钟,用“基数词past+基数词”,如:twenty,past,three,三点二十分;,表示“差分到点”时,若分钟数小于30分钟,,用“基数词to+基数词”,,如:twenty,to,three两点四十分(三点差二十分)。,(3),表示日期:,年份用基数词,如:in,2023,在2023年;,日期用序数词,如:on,Sept.12th,在9月12日。,(4),表示年代和年龄:,“in,the+整十的年份的复数(年份的数字后加-s)”表示“在几世纪几十年代”。如:in,the,1870s,在19世纪70年代,表示年龄的句式。如:,He,is,a,boy,of,10,years,old.,=He,is,a,10-year-old,boy.,他是一个10岁的男孩子。,“at,the,age,of+基数词”表示“在岁时”。如:,At,the,age,of,ten,he,was,good,at,playing,the,piano.,他10岁时就擅长弹钢琴了。,“in+one,s+整十的基数词复数”表示“在某人几十多岁时”。如:,When,he,was,in,his,fifties,the,man,became,a,famous,writer.这位男士在他50多岁时成为一名著名作家。,考向2,序数词,(1),序数词前加the,,其后接名词单数。,如:,Father,s,Day,is,on,the,third,Sunday,of,June,and,it,s,popular,in,the,USA.,父亲节在六月的第三个星期天,该节日在美国很流行。,(2),序数词前若有形容词性物主代词、名词所有格等限定词时,则不用加the。,如:,It,is,my,third,time,to,visit,Beijing.,这是我第三次参观北京。,(3),序数词前面也可以加不定冠词a或an,,表示“又一,再”,,内含顺序性。,如:,We,ve,tried,it,three,times.,Must,we,try,it,a,fourth,time?,我们已经试过三遍了。还需再试一次(第四次)吗?,考向三,概数词,(1),表示确切的数字:,具体数字+概数词+可数名词复数。hundred,,thousand,million,billion等词与具体的数字one,two或several,,some,many等词连用时,要用单数形式。如:,five,hundred,people五百人,two,thousand,books两千本书,many,million,trees几百万棵树,(2),表示不确切的数字:,概数词加-s+of+可数名词复数,且前面不再加具体数字。如:thousands,of,factories成千上万家工厂,考向四,分数,用英文单词表示分数时,一般情况下,分子用基数词,分母用序数词,当分子大于一时,分母须用序数词的复数形式。,1/2:,one,half,a,half,(不读作one,second),1/3:,one,third或a,third,2/3:,two,thirds,3/4:,three,quarters或three,fourths,2/5:,two,fifths,提升训练,1.The,girl,living,on,the,_,floor,often,helps,old,people,clean,their,rooms,and,hears,them,tell,old,stories.,A.five,B.fifth,C.fifths,D.fifteen,2.There,are,_,people,planting,trees,in,the,park,because,spring,is,the,time,to,plant,trees.,A.three,hundreds,B.three,hundred,of,C.hundred,of,D.hundreds,of,3.Ben,is,a,hard-working,writer.,He,wrote,his,fifth,novel,when,he,was,_,years,old.,A.fifties,B.fifty,C.fiftieth,D.the,fiftieth,4.According,to,the,survey,nearly,_,of,the,students,in,our,class,come,to,school,without,having,healthy,breakfast.,A.two,fifth,B.two,fifths,C.second,fifth,D.second,fifths,
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