中考专项复习之数词课件.ppt

Numbers,2018中考英语专项复习数词,数词的考点,一.基数词、序数词,二.数词的表示法,基数词,1.基数词表示数目的词称为基数词。其形式如下：,A110one，two，three，four，five，sixseven，eight，nine，tenB1119eleven，twelve，thirteen，fourteen，fifteen，sixteen，seventeen，eighteen，nineteen,C2199表示几十几时，在十位和个位之间添加连字符“-”2132435465768798,twenty-one,forty-three,thirty-two,fifty-four,sixty-five,seventy-six,eighty-seven,ninety-eight,D百位数三位数以上的基数词，在百位和十位一般要用“and”连接。101320648E千位数以上从数字的右端向左端数起，每三位数加一个逗号“，”。从右开始，第一个“，”为thousand，第二个“，”为million，第三个“，”为billion。如：1,234,567,890,one/ahundredandone,threehundredandtwenty,sixhundredandforty-eight,onebilliontwohundredandthirty-fourmillionfivehundredandsixty-seventhousandeighthundredandninety,“1509”,Ifitisanamount(数量)1,509readslikethisonethousandfivehundredandnine(2)Ifitisadate(日期)1509readslikethisfifteenzeronine(3)Ifitisatelephonenumber(电话号码)readslikethisonefiveonine“0”在英语里读成“o”or“zero”,1.hundredthousand(表示具体数字)millionbillion2.hundredsthousands(表示概数)millionsbillions,三.基数词的用法,数词two(several)+,+of,some/manyhundredsof,1)基数词表示确切的数时，不用复数形式.2)表示不确切数，如成百、成千上万，则用复数。Therearehundredsofpeopleinthehall320threehundredandtwenty,3人的不确切岁数或年代，用几十的复数形式。HebecameaprofessorinhisthirtiesItwasinthe1960s4基数词的句法功能可作主语、宾语、定语、表语、同位语。Thetwohappilyopenedthebox（作主语）Theythreetriedtofinishthetask（作同位语）,1.Ifa=3,b=4,whatstheanswertotheproblem,a+2ab+1=?theansweris_.A.twentyeightB.twenty-eighthC.twenty-eight2.Inourschoolseveral_studentsareabletosearchtheInternet.A.hunderdofB.hunderdsofC.hundred,3.Many_sheepwerekilledintheaccident.A.thousandsofB.thousandC.thousands4.Thereareovernine_workersinthefactory,but_ofyoungpeoplehopetoworkinit.A.hundred;hundredsB.hundreds;hundredsC.hundreds;hundred,月日年在2008年10月1日,四.数词的表示法年月日,onOctorberthefirst,twothousandandeight,onAugusttheninth,inMay,twothousandandten,有日用on无日用in,onOct.1st,2008,月日在8月9日月年在2010年5月,1.Theaccidenthappenedon_.A.April5,2001B.2001,April5C.April2001,52.Iwasborn_.A.inMarch8,1993B.onJuly9,1994C.onMay,1995,20世纪90年代,inthe1990s,在他50多岁时,inhisfifties,四.数词的表示法年代世纪,inthe,inones+整十基数词复数在某人几十岁时,nineteen,nineties,1.Therewillbemorechancesin_centurythanin_century.A.twenty-one,twentyB.twenty-first,twentiethC.thetwenty-first,thetwentieth2.Thecitychangedalot_.A.in1980sB.inthe1980sC.inthe1980,3.Hegraduatedin_of_century.A.thesixtieth;twentyB.sixty;thetwentiethC.thesixties;thetwentieth4.Hegottheprize_.A.inhisfiftiesB.infiftiesC.inhisfifty,时间和钟点,时间的表达方式1直接表达法。即先读小时，再读分钟如：4：10读成8：36读成2逆读法。即先读分钟，再读小时分钟小于30的用“past”，中文译为“过”。即分钟+past+时钟，中文译为“几点过几分”如：5:10（5点过10分）读成2:02（2点过2分）读成,fourten,eightthirty-six,tenpastfive,twopasttwo,分钟超过30（不包括30分钟）用“to”（中文译为“差”）即“60-分钟数+to+钟点数+1”（中文译为：几点差几分）如：7：45（八点差15分）读成1：58（两点差2分）读成3半小时用“half”,一刻钟用“quarter”。注意：一刻钟aquarter三刻钟threequarters如：4:30读成9:45读成,aquartertoten,twototwo,halfpastfour,fifteentoeight,特别注意：一个半小时的表达方式：one/anhourandahalfoneandahalfhours,Canyoureadthem?,1:302:15:3:456:387:259:50,onethirty,halfpastone,twofifteen,aquarter/fifteenpasttwo,threeforty-five,aquarter/fifteentofour,sixthirty-eight,twenty-twotoseven,twentyfivepastseven,seventwenty-five,tentoten,ninefifty,三年半的两种表达方式:threeyearsandahalfthreeandahalfyears,1.Itsalready7:40now.Whenwillthefilmstart?_.Westillhavefiveminutes.A.AquartertosevenB.Sevenpastforty-fiveC.Aquartertoeight,15,分子基数词分母序数词,onefifth,27,分子1分母+s,twosevenths,14,分子a分母quarter,aquarter,34,threequarters,12,ahalf,13,threeandonethird,3,基数词+and+分数,四.数词的表示法分数百分数,分数、百分数、小数的表达方法（以分数考法较为常见）1.分数:分子用基数词，分母用序数词，分子大于一，分母加s1/2读作2/3读作1/13读作3/4读作2小数,百分数的读法:小数点读成point3.6读作百分号%读成percent50%读作,onesecond（ahalf）,twothirds或者two-thirds,onethirteenth,threefourths或者three-quarters,threepointsix,fiftypercent,80%,基数词+percent,eightypercent,half/(百)分数+of+可数名词复数谓语动词用复数half/(百)分数+of+不可数名词谓语动词用单数,3.78,threepointseveneight,1._ofthestudents_boysinClassA.Twothree;areB.Twothirds;areC.Twothirds;is2._ofhermoney_spentonclothes.A.Twothree;areB.Twothirds;isC.Twothird;is3._theteachersinourschoolisaboutonehundred,and_ofthemarewomenteachers.A.Thenumberof;twothirdB.Thenumberof;twothirdsC.Anumberof;twothirds,一个半小时两个半小时,twoandahalfhours=twohoursandahalf,oneandahalfhours=onehourandahalf,四.数词的表示法半的表示法,1.Theboyalwaysstaystherefor_.A.oneandhalfhourB.oneandahalfhourC.oneandahalfhours2.Theoldmandrank_beer.A.twobottlesandahalfB.twoandahalfbottleC.twobottleandahalf,一倍once，两倍twice，三倍threetimes(三倍或以上基数词times),四.数词的表示法倍数,Thisboxisfivetimesasbigasthatone.=Thisboxisfourtimesbiggerthanthatone.,A+be+倍数+as+adj.原+as+B.A是B的倍C+be+倍数+adj.比+than+D.C比D倍,1.Thisbuildingis_thatbuilding.A.threetimeastallasB.twicetallerthanC.threetimesastalleras2.我的箱子比你的重六倍!Myboxis_yours.,sixtimesheavierthan,seventimesasheavyas,Thewinneris_.Heisan_boy.A.eight-year-old;eightyearsoldB.eightyearsold;eight-year-oldC.eight-yearsold;eight-year-oldHecametoChina_.A.attheageof20B.whenheis20C.atageof20,四.数词的表示法年龄,Theriverisabout_.A.6,000meterslongB.6,000-meters-longC.6,000-meter-long,四.数词的表示法计量,be+数词+量词+形容词,10.Hewentdowntothevillagewhichwas_milesawayfromthecity.A.threehundredsB.threehundredC.threehundredsof,B.threehundred,6Thewallis_.AfourmeterslongBfourmeterlongCfour-meterlong7Whatsthedatetoday?Its_AMarchtheeightBMarcheighthCeight，March8Ithappenedinthe1040sAinthefortiesoftheeleventhcenturyBinthefortiesofthetenthcenturyCintheforty9About_oftheearthssurfaceiscoveredwithwater.A.three-foursB.three-fourthC.three-fourths,Afourmeterslong,BMarcheighth,Ainthefortiesoftheeleventhcentury,C.three-fourths,选择填空。1Marchis_monthofayearAathreeBthethirdCathird2Wewillhaveameetingat8:05_AfivetoeightBeightfiveCeightofive3Eightpluseightis_.AsixteenBsixty-fourCone4Heisan_boyAeightyearsBeight-year-oldCeight-years-old5Wewillhavea_walkAtenminutesBtenminutesCten-minutes,Bthethird,Ceightofive,Asixteen,Beight-year-old,Btenminutes,四、加减乘除表示法1.“加”用plus，and或add表示Howmuchistwoplusthree?ItisfiveTwoandthreeisequaltofive2.“减”用minusHowmuchistenminussix?3.“乘”multiply3X4?Howmuchisthreetimesfour?4.“除”用divide的过去分词形式表示164=?Howmuchissixteendividedbyfour?,2more还可与alittle，afew，alot，several等词连用（1）Therearemanymoredictionariesonthedesk课桌上有许多词典。（2）Wouldyoulikesomemoretea？再喝点茶好吗？4.名词省略如果前后意思清楚，another或more后面的名词可以省去。如：1Iclimbedthestairsslowly，carryingabigsuitcase，myfatherfollowingwithtwomore,1Tonyisgoingcampingwith_boysnextSundayAlittletwootherBtwolittleotherCtwootherlittleDlittleothertwo3Doyouknowwherehefoundtheothertwophotos？另外两张照片3.more1more1）Shehasgotfivemoreelectricfans她还有五台电扇。,another,other,more修饰数词的用法1.anotherA)another+名词单数B)表“另外的、额外的、附加的时，+few或具体数字的复数1Haveyoufinishedyourreportyet？No，Iwillfinishitin10minutesAanotherBOtherCmoreDless2Thestrikemaylastanotherthreedays罢工可能还要持续三天。2.other+复数名词，置于数词之后B)但与定冠词the连用时，other要放在数词前。,序数词,1.序数词一般由基数词后加th构成，前面一般加定冠词the。第18第2002.以y结尾的基数词构成序数词时，先把y改成i，再加eth。第50第203.不规则的序数词有以下几个first,second,third,fifth,eighth,ninth,twelfth（一定要记住）,theeighteenth,thetwohundredth,thefiftieth,thetwentieth,first1stsecond2ndthird3rdfourth4thfifth5thsixth6thseventh7theighth8thninth9th,twelfth12th,twentieth20th,thirtieth30th,fortieth40th,fiftieth50th,sixtieth60th,seventieth70th,eightieth80th,ninetieth90th,C序数词的缩写形式:阿拉伯数字后加上th。irstlstsecond2ndthird3rdfourth4thtwentieth20thtwenty-third23rdD序数词的句法功能序数词在句中可作主语、宾语、定语和表语。ThesecondiswhatIreallyneed（作主语）Hechoosethesecond（作宾语）Wearetocarryoutthefirstplan（作定语）Sheisthesecondinourclass（作表语）,4.表示第几十几时，十位用基数词，个位用序数词，十位和各位用连字符-连接第三十一第六十五第七十四第九十九第八十二,thirty-first,sixty-fifth,seventy-fourth,ninety-ninth,eighty-second,5.编号的三种表示法1）名词基数词LessonThree2）the序数词名词thethirdlesson3）名词数字Lesson3如：5班ClassFive=thefifthclass=Class5,一般编码用名词+基数词207房三年级一班第五部分第一课3号汽车第一中学,Room207ClassoneGradethreepartfive=thefifthpartlessonone=thefirstlessonBusNo.3=theNo.3busNo.1MiddleSchool,四.数词的表示法编号,1、ThisisMrWhites_visitinBeijing.Hehasbeentheretwicebefore.A.twoB.secondC.threeD.third2、Thereare_monthsinayear.Octoberisthe_month.A.twelve,tenB.twelfth,tenthC.twelve,tenthD.twelfth,ten3、Thereare_peopleinPetersfamily.Theyliveonthe_floorintallbuilding.A.six,eighteenB.six,eighteenthC.sixth,eighteenthD.sixth,eighteen,4、_istheeasiestofall.A.LessononeB.TheLessononeC.LessonFirstD.Thefirstlesson5、Theforeignguestsstayedin_lastnight.A.Room608B.theRoom608C.the608roomD.608theroom,注：通常前面要加定冠词the；但出现不定冠词a或an时，则表示“再”，“又”。Wellgooveritasecondtime,特别说明：1、世纪、年代、年份、月份时，用介词in2、某一天、星期前用介词on3、某一天早晨、下午或晚上时，用介词on。,1、_acoldmorning，theoldmandiedlonelyinhishouse2、Thegirlwassenttohospital_themorningofMarch20.3、Mysonwasborn_October2010.4、Peopleareverypoor_thefifties.,On,on,in,in,分数，小数，百分比,热门考点一：hundred、thousand、million、billion的考查方法1和“of”连用，前面不能有具体的数,而且这四个词的本身必须用复数。如hundredsof数以百计的thousandsof数以千计的millionsof数以百万计的billionsof数以十亿计的manyhundredsofstudents.好几百个学生2当它们的前面有具体的数修饰时,其本身即不能用复数，不能和“of”连用。twothousandstudents两千名学生fivehundredcars五百辆车,1、Bytheendoflastyear,wehadplantedaboutfive_trees.A.hundredB.hundredsC.hundredofD.hundredsof2、_booksmustbeproducedforthechildren.A.manythousandsB.manythousandsofC.manythousandofD.manythousand,热门考点二：其它重要表达方式的考法1.在某人多少岁in+ones+几十的复数形式eg:Myparentsareintheirfifties.2afive-year-oldboya