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1、數(shù)詞初三英語(yǔ)總復(fù)習(xí)你能寫(xiě)出下列數(shù)詞嗎？38122045100threeeighttwelvetwentyforty-fiveonehundred第2第9第13第20第32第100secondninththirteenthtwentieththirty-thirdonehundredth數(shù)詞的分類數(shù)詞基數(shù)詞序數(shù)詞基數(shù)詞定義：基數(shù)詞用來(lái)表示數(shù)目，或者表示數(shù)量的詞叫基數(shù)詞。一個(gè)蘋(píng)果八輛汽車兩支鋼筆十張課桌oneappletwopenstendeskseightbuses基數(shù)詞的構(gòu)成1one11eleven100ahu
2、ndred2two12twelve20twenty1,000athousand3three13thirteen30thirty1,000,000amillion4four14fourteen40forty10,000,000tenmillion5five15fifteen50fifty6six16sixteen60sixty7seven17seventeen70seventy8eight18eighteen80eighty9nine19nineteen90ninety10ten兩位基數(shù)詞的構(gòu)成213457668
3、9twenty-onethirty-fourfifty-sevensixty-sixeighty-nine三位基數(shù)詞的構(gòu)成457890608389threehundredandeighty-ninefourhundredandfifty-seveneighthundredandninetysixhundredandeight序數(shù)詞定義：表示數(shù)目順序的詞叫序數(shù)詞。相當(dāng)于中文的“第幾”。序數(shù)詞在使用時(shí)，通常前面要加定冠詞the.如：Shelivesonthefifthfloor.序數(shù)詞的構(gòu)成口訣基變序，有規(guī)律，詞尾
4、常加-th。一、二、三特殊記，詞尾字母t,d,d.八減t，九減e,f來(lái)把ve替。ty字母作結(jié)尾，ty變成tie.若是遇上“幾十幾”，只變個(gè)位就可以。序數(shù)詞的基本構(gòu)成第一---第十第十一---第十九第二十以上firsteleventhtwentiethsecondtwelfththirtieththirdthirteenthfortiethfourthfourteenthfiftiethfifthfifteenthsixtiethsixthsixteenthseventiethseventhseventeenth
5、eightietheightheighteenthninetiethninthnineteenthhundredthtenthtwohundredth兩位序數(shù)詞的構(gòu)成第33第46第89第66thethirty-thirdtheforty-sixththeeighty-ninththesixty-sixth數(shù)詞的用法例1、--I’vecutthecakeinto___pieces.Whichpiecedoyouwant?--The___one,It’sthebiggest.A.five,twoB.fifth,tw
6、oC.five,second用法1、表示數(shù)量多少用基數(shù)詞；表示順序用序數(shù)詞√1.表示數(shù)量用基數(shù)詞。575名學(xué)生73兩自行車fivehundredandseventy-fivestudentsseventy-threebikes2.表示事物的順序用序數(shù)詞。Mondayistheseconddayofaweek.Januaryisthefirstmonthofayear.Winteristhefourthseasonofayear.例2、Ioftenhavebreakfastat___.A.fiftypastsix
7、B.sixfiftyC.fiftytosix√用法2、表達(dá)時(shí)間用基數(shù)詞1、先時(shí)后分6：45sixforty-five9:30ninethirty2、先分后時(shí)◆當(dāng)分鐘數(shù)小于30分時(shí)，用分鐘數(shù)+past+點(diǎn)鐘數(shù)6:10tenpastsix9:20twentypastnine◆當(dāng)分鐘數(shù)等于30分時(shí)，用half+past+點(diǎn)鐘數(shù)9:30halfpastnine2:3ohalfpasttwo◆當(dāng)分鐘數(shù)大于30分時(shí)，用(60-分鐘數(shù))+to+下一個(gè)點(diǎn)鐘數(shù)6:45fifteentoseven或aquartertoseven8
8、:55fivetonine翻譯：五年半三天半fiveandahalfyears/fiveyearsandahalfthreeandahalfdays/threedaysandahalf用法3、表達(dá)“幾個(gè)半”用基數(shù)詞“基數(shù)詞+andahalf+復(fù)數(shù)形式”或“基數(shù)詞+單數(shù)/復(fù)數(shù)形式+andahalf”例、Ittookme_____towritethebookA.twoandhalfyear
