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Twoandthreeisfive数词（1）----基数词1.概念：表示数目的词叫基数词.onetwothreefourfivesixseveneightnineteneleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteentwentyTwenty-onethirtyfortyfiftysixtyseventyeightyninetyonehundredahundred101onehundredandone236Twohundredandthirty–six注意：A.1在数字开头时，既可译成a,也可译成one.如：146：a（one）hundredandforty-six1038：a（one）thousandandthirty-eight0123456789101112zeroonetwothreefourfivesixseveneightnineteneleventwelve0至12各相异，一个一个单独记。13141516171819thirteenfourteenfifteensixteenseventeeneighteennineteen后加teen，为十几。thirteen.fifteen记仔细，eighteen只有一个t.2030405060708090twentythirtyfortyfiftysixtyseventyeightyninety20，30到90词尾ty莫忘记，twenty不同重点记,forty剜去字母u,thirty,fifty单独记.2135465263788497twenty-onethirty-fiveforty-sixfifty-twosixty-threeseventy-eighteighty-fourninety-seven十位后面是个位，表示数词几十几。连字符号莫丢弃，写到hundred好成绩。What’stwoandthree?Twoandthreeis(are)five.What’snineplussix?Nineplussixisfifteen.It’sfifteen.Howmuchisforty-oneminusthirty-two?It’snine.I’minRowone.I’minclasstwo.I’mliveinRoom302.练习题1.单项选择.（）It’stime____class.A.forB.toC.on（）It’stime____.A.gotoschoolB.goschoolC.togotoschool（）It’s____(8:30).wemuststarttoworknow.A.eightthirtyB.eighty-thirtyC.thirty-eightyACA()What’sthetime?It’s____.A.nineB.mineC.nice()What____tenandeleven?It’s___.A.is,twentyB.is,twenty-oneC.are,twenty-one()___isyourEnglishteacher?Heisforty.A.howmuchB.HowoldC.WhatABATheExpressionsofTime时间表达法时间表达有规律，一般规律顺着读二般规律倒着念，30分钟为界限小于30past，几点过几分大于30要用to，差多少几点钟半小时用half，15分钟用quarter上午都用a.m下午都用p.mA.整点，用基数词+o’clock来表示,注意o’clock须用单数，可以省略。注意o'clock须用单数，可以省略8:00eighto’clocka.m.10:00teno’clocka.m.13:00oneo’clockp.m.exercise4:00fouro’clocka.m.9:00nineo’clocka.m.13:00oneo’clockp.m.15:00threeo’clockp.m.•6:10sixten•8:30eightthirty•2:41twoforty-one•1:05oneofive/onefive•13:20onetwentyp.m.B.非整点，用基数词按小时+分钟的顺序直接写出时间，后不可加o’clockexercise12:109:2510:3015:40twelvetenninetwenty-fivetenthirtythreefortyp.m.•6:10tenpastsix•4:20twentypastfour•10:25twenty-fivepastten•11:40fortypasteleven•13:35thirty-fivepastonep.m.•10:35twenty-fivetoeleven•(60-35)+to+(10+1)•5:50tentosix•(60-50)+to+(5+1)•9:49eleventoten•(60-49)+to+(9+1)注：分钟数多于30分钟，可用（60分钟-原分钟数）+to+（原钟点数+1）表示，其中to是介词，意思是“差”exercise5:35twenty-fivetosix7:48twelvetoeight14:55fivetothreep.m.16:47thirteentofivep.m.当分钟数是30分钟时，可用名词half（一半）表示。•11:30halfpasteleven•2:30halfpasttwo•15:30halfpastthreep.m.•15分钟又叫一刻钟：aquarter•9:15ninefifteen;•fifteenpastnine;•aquarterpastnine3:45threeforty-five;•fifteentofour;•aquartertofour注：当分钟数是15分钟时,可用名词quarter（一刻钟）表示exercise3:155:3019:456:158:3016:45写出下列时间•6:15•9:14•8:09•7:54•10:01•9:30•2:11•8:33•3:26•6:18Whattimeisit?What'sthetime?It’stimefor…….该是……….的时候了介词for后面跟名词，如：class,school,breakfast,lunch,supper,sports,bed等。It’stimeto后跟动词.It’stimetogotoschool.数词所有格数词还可以用所有格形式及加连字符相当于形容词。oneweek’smeetingfiveminutes’walkaone--weekmeetingafive–minuteswalkaten-year-oldgirl介词的使用：oninat•若指在哪一年或哪一月，用介词in；若具体到某一天，需用介词on。例如：•Shewasbornin1989.•ShewasborninAugust.•ShewasborninAugust1989.•Shewasbornon2ndAugust,1989.有日要用on，无日则用in所有星期都用on，具体时间用atExcises写出下列时间•1.It'snineforty-five.•2.It'stwoseventeen.•3.It'sthree.•4.It'sninethirty.•5.It'ssixfifteen.•6.It'sthreefifty.练习题1.用英语表示下列时间.1：203：558：0510：3012：1512：30onetwentyfivetofoureightofivehalfpasttenaquartertwelvehalfpasttwelve2.仿照例句写句子.Model1:6:00getupIt’ssixo’clock.It’stimetogetup.Model2:7:00schoolIt’sseveno’clock.It’stimeforschool.1.7:10gotoschool2.7:45gototheclassroom3.16:20playfootball4.17:40gobackhome5.20:55gotobed6.9:00class3.按要求写句子。1.Whattimeisit?(同义句)2.It’stimeforbreakfast.(同义句)3.Twentyandfiveistwenty-five.（就画线部分提问）____________twentyandfive?4.It’sseventwentynow.(就画线部分提问)__________isitnow?What'sthetime?It’stimetohavebreakfast.HowmuchWhattime整点•现在是两点整。It’stwo.•It’stwoo’clock.•It’stwoo’clocksharp.•It’stwoo’clockonthedot.•It’stwoo’clockonthenose.•It’sexactlytwoo’clock.noon和midnight•可分别直接表示白天和夜晚的12点：•It‘s(twelve)noon.现在是中午十二点。•It's(twelve)midnight.现在是半夜零点。大约时间•It’salmosttwo.马上到两点了。•It’snotquitetwo.还不到两点。•It’sjustaftertwo.刚过两点。a.m.andp.m.•若想表明是上午，可在时间后加上a.m.，如：•thirteenpastsixa.m.上午六点十三分。•若想表明是下午，可在时间后加上p.m.，如：•fouro'clockp.m.下午四点。1.世纪•1)用“定冠词+序数词+century”表示•例：在十七世纪、写作：inthe17thcentury、读作：intheseventeenthcentury•2)用“定冠词+百位进数+s”表示•例：在十七世纪写作：inthe1600s、读作：inthesixteenhundreds•注意：这种情况下，实际表达的世纪数是阿拉伯数字本身加一。2.年代•用“定冠词+(世纪百位进数+十位年代数)+s”表示•例：在二十世纪三十年代、写作：inthe1930s、读作：inthethirtiesofthetwentiethcentury或inthenineteenthirties•表示某年代的早期、中期和晚期，可以在定冠词后添加early,mid-和late，例如：•在二十世纪二十年代早期intheearly1920s；在二十世纪五十年代中期inthemid-1950s3.年月日•A.年份•读年份时一般分为两个单位来读，前两个数为一个，后两个数为一个：•1949读作：nineteenforty-nine或nineteenhundredandforty-nine•如果是三位数，先读第一位，再把后两个数合起来读：•253读作：twofifty-three或twohundredandfifty-three•另外：2000读作：twothousand，1902读作：nineteenhundredandtwo或nineteenotwo•如果要使用year，year放在数词之前，例如：intheyeartwofifty-threeB.C.在公元前253年B.月份•月份是专有名词，除了少数几个月份外都有缩写形式：•January-Jan.一月•February-Feb.二月•March-Mar.三月•April-Apr.四月•August-Aug.八月•September-Sept.九月•October-Oct.十月•November-Nov.十一月•December-Dec.十二月•注意：缩写形式后面的点不能省略，因为它是表示缩写形式的符号。C.日期：用序数词表示•例：十月一日•写作：October1,October1st,1October,1stOctober,(the)1stofOctober等，其中的October