語法專題十一數詞常見的數詞有兩類：基數詞和序數詞?；鶖翟~用于表示數量多少，而序數數詞用于表示次序，常在日期中出現。區別：基數詞前面沒有定冠詞“the”；序數詞前要有定冠詞“the”。使用規則如下：基數詞二十以上的兩位數需要在個位和十位之間加上“”。如：21twentyone三位數以上的需要在“百”后加上and，注意hundred是單數。如：101a/onehundredandone用基數詞來修飾可數名詞時，名詞用復數。如：三位男孩threeboys用基數詞修飾不可數名詞時，如果在兩個以上，變量詞為復數，名詞不變。如：兩杯水twocupsofwater表示年份：2002:twothousandandtwo;1976:nineteenseventysix.表示編號：Room105→RoomoneOfive;BusNo.13→BusNumberThirteen;P.5→PageFive表示時刻：5:15→fivefifteen或aquarterpastfive；8:30→eightthirty或halfpasteight；10:45→tenfortyfive或aquartertoeleven小數的讀法：5.7→fivepointseven；0.16→zeropointonesix.序數詞基數詞變序數詞變化規則：一二三特殊記，結尾各是t,d,d（first、second、third）。其余th加后面（fourth）。八去t，九去e（eighth、ninth），f來把ve替（fifth,twelfth）。若是遇到整十數，ty變成tie（twentieth，thirtieth）。若是遇到幾十幾，只變個位就可以（twentyfirst、twentysecond）。表示日期：12月1日:Dec.1st或thefirstofDecember；2002年11月8日:Nov.8th,2002.表示事物的次序和排名，如“thefirstpersoninline”；“Hefinishedinthirdplace.”數詞專項訓練單項選擇。Thereare___________daysinayear.A.threehundredandsixtyfiveB.threehundredandsixtyfiveC.threehundredsandsixtyfiveD.threehundredsandsixtyfiveMaryis_________girl.A.an8yearold B.8yearsold C.the8yearsold D.an8yearoldWhatdayistoday?A.June B.Tuesday C.Itishot D.It’sfineWhattimedoyougetupeveryday?A.It’sseveno’clock. B.Seveno’clocktime. C.Atseven. D.Onseven.Thereweretwoworldwarsduring_______century.A.thetwenties B.thetwentieth C.twenties D.twentiethWearelearning________now.A.thetwentyfirstlesson B.LessonTwentyfirstC.the21thlesson D.Lesson21st( )Hewillstayherefor________.A.oneandhalfmonth B.oneandahalfmonthC.onemonthsandahalf D.oneandahalfmonthsHowoftendoyouwritetoyourparentsabroad?A.Twiceamonth B.SecondtimesamonthC.Asecondtimeamonth D.secondatimeamonth__________peoplediedinthetrafficaccidentsintheworld.A.Thousandof B.Thousandsof C.Tenthousandsof D.TenthousandofThisisher________birthday,Ithink.A.twenty B.twentieth C.thetwentieth D.thetwenty’s用所給詞的適當形式填空。TreePlantingDayisonMarch_______(twelve).Thereare_______(four)sheepinfrontofthehouse.Father’sDayisonthe_______(three)SundayinJune.—Whattimeisit?—It’s_______(eight)o’clock.It’stimetogotoschool.—Whereisthelibrary?—It’sonthe_______(one)floor.在橫線上寫出下列時間。It’shalfpastnine. _______________It’stwelve. _______________It’sfourfifteen. _______________It’stentonine. _______________It’ssixforty. _______________英漢互譯fifteentoeleven _______________thethirdday _______________onMarch20th,2009 _______________athalfpastseven _______________NO.5PrimarySchool _______________第六課 _______________30個雞蛋 _______________6月2日 _______________兩個半小時 _______________1949年10月1日 _______________根據括號中的數字填寫合適的序數詞或基數詞。Billis__________(14)yearsold,heisinClas