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数词英语中的数词可分为基数词和序数词两大类。基数词：人或事物的数目序数词：数目的顺序。基数词序数词略数年代数词1.基数词•巧记基数词口诀•1至12分别记•13至19都带-teen13，17•整十后面要用-ty40，,90•几十几用连字符53，32•百位以上and连263fifty-three,thirty-twotwohundredandsixty-two注意：•英语中没有“万”和“亿”这两个数量单位，要按十进位法来推算。•一万：tenthousand•十万：onehundredthousand•百万：onemillion•千万：•一亿：•十亿：tenmilliononehundredmilliononebillion英语数量单位•one个•ten十•hundrend百•thousand千•million百万•billion十亿2.序数词基数词→序数词：one→firsttwo→secondthree→third大部分基数词都在后面加th注意：five→fifthnine→ninthtwelve→twelfth注意：整十的基数词（10除外），均将y变成ie，再加th：twenty→twentiethfifty→fiftieth表示二十以上的基数词只变个位数（整十除外）：thirty-one→thrity-first3.略数表达法1.当hundred，thousand，million，billion，dozen等前面有具体的数词时，后面既不能加s，也不能加介词of。Ourschoolboughttwothousandbooksthisyear.我们学校今年买了两千本书2.hundred，thousand，million，billion，dozen等前面没有具体的数词，则在其后加s和介词of，表不确定的数量或形容数量之多hundredsof成百的，好几百thousandsof数以千计的millionsof数百万的Thereisonlyhundredsofstudents我们学校只有几百个学生t•threehundredstudents三百个学生•twothousandbooks两千本书•hundredsofstudents三百个学生•thousandsofbooks两千本书•几百万个人•两百个苹果•三千个箱子•几千个杯子•三百万棵树Thereare__________（两千）studentsinourschool.TheGreatWallismadeof________stones.长城是由数百万石头砌成的twothousandmillionsof注意：若表示特定的数目，可在hundred、thousand后加ofTherearesevenhundredstudentsinthisschool.Threehundredofthemaregirls.该校有700名学生，其中女生有300名。长乐有六百万人，其中400万是男性。Changlehassixmillionpeople.Fourhundredofthemaremen.4.年代表达法在20世纪90年代：inthe1990s或inthe1990’s具体年份：in+年份in1994•把基数词改为序数词。•onetwelve•twofourteen•threetwenty•fivetwenty-one•eightforty-four•nineninety-sixfirstsecondthirdfiftheighthninthtwelfthfourteenthtwentiethtwenty-firstforty-fourthninety-sixth22.Januaryis_______monthoftheyear.•A.oneB.theone•C.firstD.thefirst23.Thereare_______daysinayear.•A.threehundredssixty-five•B.threehundredandsixty-five•C.thethirdhundredsixty-five•D.thirdhundredandsixty-five24.Thecomputerwascheap.Ispentonlytwo_______yuanonit.•A.thousandsB.thousand•C.thousandsofD.thousandof25.Pleaselookatthefollowingfourpicturesandwritea_______storyaboutthem.•A.one-hundred-word•B.one-hundred-words•C.one-hundreds-word•D.one-hundreds-wordstwo-thousand-student两千个学生26.—Onwhichfloordoyoulive?—The_______floor,andmyroomnumberis__.•A.fifth;fivezerotwo•B.fifth;fivezerosecond•C.five;fivezerosecond•D.five;fivezerotwo27.Inourcitypeoplehavemovedintotheirnewhouses.•A.thousandB.thousands•C.thousandsofD.manythousand28.Now,turntopage_______andlookatthe_______pictureinLessonTwo.A.twentieth,oneB.twenty,oneC.twentieth,firstD.twenty,first29._____girlstookpartintheSuperGirlCompetitionbutonlyfewofthemsucceeded.A.OnemillionofB.ThousandsandmillionsC.MillionsofD.TwomillionsPPT制作：小鱼图片版权：伊面无垠文海邀你畅享docer.wps.cn更改PPT母版功能键：