小学数词语法专项课件x 29页

小学英语语法数词专项Seven\nLessonOne——基数词——序数词\n一.基数词1）1－12,独立成词。onetwothreefourfivesixseveneightnineteneleventwelve2）13--19,由3－9+teen构成。14–fourteen16--sixteen17--seventeen19—nineteen特殊拼写:13–thirteen15--fifteen18—eighteen3）20－90整十位数,以-ty结尾。20—twenty30---thirty40—forty50—fifty80---eighty60---sixty70---seventy90—ninety\n5）101—999，三位数，百位与十位/个位之间加and101onehundredandone840eighthundredandforty693sixhundredandninety-three4）21－99，两位数，十位与个位之间有“－”21twenty—one55fifty—five99ninety—nine\n二.序数词3)20－90,y变成ie+th,如twentieth1)1－3,first,second,third2)4－19,相应基数词+th,特殊拼写:fifth,eighth,ninth,twelfth\n4)21－99,只把个位的基数词变成序数词如twenty-first5)序数词缩写----数字＋最后两字母如1st,2nd,3rd,4th…\n序数词构成规律基变序,有规律,一、二、三，特殊记，面目全非要注意，加th从4起，八少“t”，九去“e”，“ve”要用“f”替，(five,twelve)见“y”变成“i”和“e”，词尾再加“th”，(twenty,thirty,……ninety)若是遇到几十几，只变个位就可以。序数词缩写记清楚,数字后跟两字母。8th\n\n写出下列数词相对应的基数词或序数词1)one.2)two.3)three.4)nine.5)twelve.6)twenty.7)eighty-eight.8)sixty-two.9)fifty-four.10)fourhundred.11)sixth.12)thirteenth.13)eleventh.14)hundredth.15)ninety-sixth.16)onehundredandthird.firstsecondthirdninthtwelfthtwentietheighty-eighthsixty-secondfifty-fourthfourhundredthsixthirteenelevenhundredninety-sixonehundredandthree\nLessonTwo——数词的运用\n三：数词的应用1.表示倍数一倍once二倍double/twice三倍和三倍以上基数词+timeseg：Twicethreeissix.三的两倍是六。fivetimesthreeisfifteen.三的五倍是十五。\n2.表示分数分子基数词1/3One-thirds分母序数词1）分子大于1时，分母序数词的复数形式（加-s）eg：2/3two-thirds3/4three-fourths2）有些分数可用half和quarters表示：eg：1/2a(one)half1/4a(one)quarter3/4threequarters半年halfayear半小时halfanhour一年半oneandahalfyears（oneyearandahalf）\n3.表示小数小数点以前的数用基数词读出小数点读作point小数点以后的数用基数词逐个读出eg：0.7zeropointseven326.1threehundredandtwenty-sixpointone3.1415926……threepointonefouronefiveninetwosix……\n4.表示百分数百分数用基数词读出百分号读作percenteg：0.7%zeropointsevenpercent26%twenty-sixpercentFortypercentoftheapplesonthetreearegreen.那棵树上百分之四十的苹果都是绿的。\n5.表示四则运算加＋and或plus减－minus乘×times除÷dividedby等于＝equals或is或makes\n3+4=7threeplusfourequalsseven.4-3=1fourminusthreeequalsone.4×3=12fourtimesthreeistwelve.12÷4=3twelvedividedbythreemakesfour5.表示四则运算\n6.表示编号The+序数词+名词前面一定要加the名词+基数词首个字母要大写，基数词也可用阿拉伯数字表示第一课：第32页:第305房间:第12路公共汽车:TheFirstLesson（在句子中不大写）LessonOnethethirty-secondpagePage32/PageThirty-twoRoom305BusNo.12\n7.表示（摄氏）温度基数词+degreescentigrade（摄氏度）fiftydegreescentigrade（50摄氏度）\n8.表示长、宽、高长度基数词+单位词+long（长）宽度基数词+单位词+wide（宽）高度基数词+单位词+high（高）深度基数词+单位词+deep（深）eg：50米长fiftymeterslong21米宽twenty-onemeterswide3米高threemetershigh.1.8米深tonepointeightmetersdeep\n9.表示货币基数词+货币单位(yuan/dollar/pound)人民币yuan没有复数形式美元：dollar→dollars英镑：pound→pounds\n10.表示年、月、日、时刻年用基数词，先读前两位，再读后两位月首个字母要大写，并且都有缩写形式日一般用序数词表示eg：1949——nineteenforty-nine9月10日Septemberthetenth10月1日Octoberthefirst\n几点钟基数词+o’clock几点过几分分钟数+past+小时数几点差几分分钟数+to+小时数10.表示年、月、日、时刻\nWhatisthetime?sixsixo’clockfourofivefivepastfoursevenfifteenaquarterpastsevenninethirtyhalfpastnineninetwentytwentypastninesixfortytwentytoseven\n\n根据提示完成下列英文句子1）6:30--whattimeisit?--Itis.2)4月1日Todayis.3)2+1=3isthree.sixthirty/halfpastsixApril1stTwoplusone\n选择填空1）ofthevisitorsareChinese.A.ThreefiveB.Three-fifthC.Three-fifthsD.Thirdfive2）Therearepeopleonthesquare.A.hundredsB.hundredofC.hundredsofD.fivehundreds3)Theteacheraskedustowriteacompositioninonehour.A.three-hundred-wordsB.threehundredofwordsC.three–hundreds-wordsD.three–hundred–wordCCD\n4)--WhatisYumiin?--Sheisin___.A.row,rowFourB.row,RowFourC.rows,fourrowDrows,rowFour.5)–Howmuchisfivesix?--Eleven.A.plusB.minusC.timesD.dividedBA\n写出下列数字的英语读法4/7.0.28.1/4.3.14.5)30%.6)0.7%.four-seventhszeropointtwoeightaquarterthreepointonefourthirtypercentzeropointsevenpercent\nThankyou!