高三英語一輪數(shù)詞復習課件

數(shù)詞number

數(shù)詞概述

表示數(shù)目或順序的詞叫數(shù)詞。數(shù)詞分為基數(shù)詞和序數(shù)詞。表示數(shù)目多少的數(shù)詞叫基數(shù)詞。表示順序的數(shù)詞叫序數(shù)詞。數(shù)詞1.基數(shù)詞的構成3.基數(shù)詞的用法4.序數(shù)詞的用法2.序數(shù)詞的構成基數(shù)詞的構成1-12：獨立成詞one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve13-19：以teen結尾thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen一：基數(shù)詞的構成20-90：（整十）以ty結尾twenty,thirty,forty,fifty,sixty,seventy,eighty,ninety21-99：兩位數(shù)，中間要加連字符“-”twenty-one,twenty-two,twenty-three…ninety-nine101-999：三位數(shù)，百位與十位或個位之間加andonehundredandone…onehundredandninety-nine…ninehundredandninety-nine739,49850077,,thousand

千hundred百million百萬billion十億and

1，000以上數(shù)目,從右向左每三位用“，”分開,分別讀為thousand,million,billionzxxkw-252551517707001991481,802201026，532，875如何表達順序？基數(shù)詞變序數(shù)詞口訣123單獨記；first，second和thirdth要從4加起；fourth，sixth有規(guī)律eight少了一個t，變?yōu)閑ighthnine要去掉e，然后再加-th（ninth）-ve要用f替；five變?yōu)閒ifth，twelve變?yōu)閠welfth-ty變?yōu)?tie；twenty變?yōu)閠wentieth若問幾十幾或幾百幾，只變個位記心里。fourty-fifth二：序數(shù)詞的構成三：基數(shù)詞的用法1.基數(shù)詞在句中可以做（

）

成分。ThreeofushavebeentoBeijing.ThesevengirlsarefromCanada.WefivewillgotoTokyowithher.Ilikenine.Myfavoritenumberisnine.

主，賓，表，定，同位語2.inone’s+基數(shù)詞整十的復數(shù)“在某人幾十多歲時”在我20幾歲時3.attheageof+基數(shù)詞

在某人多少歲時在5歲的時候

4.基數(shù)詞+連字符+名詞，組成的合成形容詞作定語時，其中的名詞用單數(shù)他是一個11歲的小男孩

inmytwentiesattheageoffiveHeisaeleven-year-oldboy.Therearethreethousandstudentsinourschool.Afterthewar,thousandsofpeoplebecamehomeless.6.inthe+年份s“在...年代”在20世紀80年代7.基數(shù)詞+times表示次數(shù)和倍數(shù)，once一次/一倍，twice兩次/兩倍5次/倍8.年份用基數(shù)詞表達，年代是四位數(shù)，先讀前兩位，再讀后兩位在2050年

inthe1980sfivetimesintwentyfifty9.表示長，寬，高，面積可用“基數(shù)詞+單位詞+adj”或者“基數(shù)詞+單位詞+in+n.”3米長5米高10.基數(shù)詞的數(shù)學運算，plus/and（加），minus（減），times/multipliedby（乘），dividedby（除）threemeterslongfivemetersinheightTwoplusfiveisseven.Sevenminusfiveistwo.Twotimesfouriseight.Onehundreddividedbytenisequaltoten.Canyoureadthem？11:15elevenfifteen

aquarterpasteleven11:30eleventhirty

halfpast

eleven11:45elevenforty-five

aquartertotwelve11.時刻表達ateightnineseventeen或seventeenpastninetwothirty或halfpasttwofiveforty-five或aquartertosixfourteenfifteen=2.15p.m.twenty-threeOfive

整數(shù)部分按基數(shù)詞讀，小數(shù)部分依次讀出。整數(shù)+point+小數(shù)

33.14讀作thirty-threepointonefour

0.62讀作（zero）pointsixtwo12.小數(shù)怎么讀？牛刀小試3.0723.7020.327threepointzeroseventwothreepointsevenzerotwozeropointthreetwoseven%讀作percent，基數(shù)詞+percent5%讀作fivepercent。12%28%13:百分數(shù)怎么讀？分數(shù)1323onethirdtwothirds221/32/521/43/414.分數(shù)表示法分子用基數(shù)詞，分母用序數(shù)詞。分子大于1時，分母加-s。one-fourth或

a(one)quarterone-thirdtwo-fifthstwoandsix-seventhsthree-fourths

或

threequarters牛刀小試34() A.threefours B.threefourths18() A.oneeighth B.oneeight512() A.fivetwelfths B.fifthtwelfthsBAA(1)the+序數(shù)詞表示“第幾”；a/an+序數(shù)詞表示“又一，再一”

Johnlivesonthefifteenthfloor．We‘llhavetodoitasecondtime．(2)序數(shù)詞前有物主代詞或其它限定詞修飾時，不加定冠詞the。序數(shù)詞做副詞時，不加theTheypaiedfortheirsecondhouseincash.First，youshouldcleanyourroom.四：序數(shù)詞的用法zxxkwzxxkwthirtiesfourthsa

the

twice

Hundreds練習:語法填空

1.However,intheurbandistrictofBeijinghousesalonghutongsstilloccupyone_______(three)ofthetotalarea,providinghousingforhalfofthepopulation.2.Whattheylearnthelpedthemmake_____firstairplaneflightin1903.3.Heisthe_______(five)persontoaskmethesamequestion.4.Ihavereadthetenthchapterbutnotthe_________(twelve).5.Itwasthethirdtimethatoneofhiscars_________(go)upinflames.6.Osakaisthe________(two)largestcityinJapan.7.YuriGagarinbecamethefirstman______(fly)inspace.thirdthefifthtwelfthhadgonesecondtofly單選題_______thestudentsinourschoolisaboutonethousand,_____ofthemareboys.Anumberof;twothirdB.Thenumberof;twothirdsAnumberof;twothirdsD.Thenumberof;twothird2.Nine_____poundsaweek?Thatsoundsgood.A.hundredofB.hundredsofC.hundredsD.hundred3.Inourcity_____peoplehavemovedintotheirownhouses.thousandB.thousandsC.thousandsofD.thousandof4.Thelittleboywrotea_____lettertohisuncle.five-hundred-wordsB.five-hundred-wordFivehundredswordsD.fivehundredswordBDCBA___womanwassavedfromtheshiponJune2nd,2015.65yearold 65-year-olds

1.65-year-old65-years-old答案：C簡析：年齡的表示方法，作定語時結構是“基數(shù)詞-year-old”因此選C。MoreC____treeshavebeenplantednearhere,sotheairisveryfresh.Twohundreds

Hundredof

4.Hundredsof

Hundreds答案：C簡析：基數(shù)詞之后用hundred的單數(shù)形式，hundred的復數(shù)形式與of連用，故選C。句意是“附近已經植了數(shù)百棵樹，因此空氣非常新鮮?！盡oreC____girlstookpartintheHappyGirlCompetitionbutonlyfewofthemsucceeded.Millionof

Manymillionof5.Onemillionof

Millionsof答案：D簡析：句意為“許多女孩參加‘快樂女生’的比賽，但是僅僅很少一些人