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1、2015年11月26日数词分为基数词和序数词两种,基数词表数目,序数词表顺序。1.分数表达法:先写基数词表示分子,后写序数词表示分母,如果分子大于1时,分母要加“s”。如:one-fourth,two-fifths,three-tenths2.小数表达法:小数点写作point,小数后的数字应按其数字直接表示出来。如:18.38可写成:。3.年、月、时间表达法:年份用基数词,日期用序数词,时间用基数词,其顺序由小到大。4.英语中没有“万”和“亿”,要按十进位法来推算。如:35,845,可写成thirty-fivethousandeighthundredandforty-five
2、。又如:100,000,000可写成ahundredmillion。5.Hundred,thousand,million,dozen,score这些词前面如又表示具体数字的词,它们不能加“s”,反之则须加“s”。如:threehundredpeople,thousandsofpeople。6.两组与数词有关的介词短语:⑴in+定冠词the+数词的复数形式,表示年代。如:inthe1870s或1870’s⑵in+物主代词+数词的复数形式,表示某人的年龄。如:inone’sthirties。一、容易写错的序数词one___________________two__________
3、__________three___________________four___________________five___________________nine____________________twelve_________________twenty_________________twenty-one______________二、写出下列分数1/3______________2/3_______________3/5_____________1/2______________1/4_______________3/4______________三、选择1.
4、Mayis________monthof_______year.A.five,theB.fifth,aC.thefive,theD.thefifth,a2.Hepromisedtogiveme________timetofinishreadingthemagazine.A.two-daysB.twodaysC.twoday’sD.twodays’3.Hesaidhehadbeenwaitingtherefor__________.A.oneandahalfhoursB.oneandhalfhourC.oneandthehalfhourD.oneandhalfahour4.__
5、_______ofthestudentshavehandedintheirpapers.A.Two-threeB.Two-thirdC.Two-thirdsD.two-threes5.“2000”reads________________A.theyeartwothousandB.theyearofthetwothousandC.theyeartwothousandsD.theyearofthetwothousands1.Hewasborn_______________A.onthefifthofOctober,nineteenninetyB.onthefiveofOctob
6、er,nineteenninetyC.inthefifthofOctober,nineteenninetyD.inthefiveofOctober,nineteenninety2.Indiahadapopulationof_________________.A.fivehundredandninety-sixmillionB.fivehundredandninety-sixmillionpeopleC.fivehundredandninety-sixmillionsD.fivehundredandninety-sixmillionspeople3.Themedicineist
7、obetaken________________A.threetimeadayB.adaythreetimesC.threetimesadayD.adaythreetime4.TheYangtseRiveris__________longestriverintheworld.A.ThefourthB.fourthC.thefourD.afour5.________oftheland________coveredwithtrees.A.threefourth,isB.threefourth,areC.th