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1、心存感激，永不放弃！即使是在最猛烈的风雨中，我们也要有抬起头，直面前方的勇气。请相信：任何一次苦难的经历，只要不是毁灭，就是财富！教师寄语数词基数词序数词数量顺序一.基数词的构成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,以-ty结尾。20—twenty30-
2、--thirty40—forty50—fifty80---eighty60---sixty70---seventy90—ninety4）21－99，两位数，十位与个位之间有“－”。21twenty—one55fifty—five99ninety—nine5）101—999，三位数，百位与十位/个位之间加and。101onehundredandone840eighthundredandforty693sixhundredandninety-three29,43150076,,thousandhundredmillionbillionand6)1，000以上数目,从
3、右向左每三位用“，”分开,分别读为thousand,million,billion基数词的构成二.概数词的用法1、表示具体数目,hundred,thousand,million不用复数表示不确定数目,用复数。即hundredsof(数百),thousandsof(数千),millionsof(数百万)+名词复数,可以用many/several修饰，但不能与具体数目连用。1)Ourcountryhasapopulationof1,300millionpeople.2)Therearethreethousandstudentsinourschool.3)Aftert
4、hewar,thousandsofpeoplebecamehomeless.4)Several/Manythousandsoftreesmustbeplantedeveryyear.1.Nine_____poundsaweek?That’sverygood.(04年河北)A.hundredofB.hundredsofC.hundredsD.hundred2.—Howmanyteachersarethereinyourschool?—Aboutfour____.(2013广安)A.thousandsofB.thousandC.thousandsD.thousand
5、of3.TheearthquakeinYa’anleft___peoplehomeless.(2013济宁)A.twothousandsB.thousandsofC.twothousandsofD.twothousandof4.—“FoodSafety”hasbecomeoneofthehottesttopicsrecently(2013宜宾)—Yeah,itreceives__Internethits(点击)aday.A.thousandsB.thousandofC.thousandsofD.tenthousands三.序数词的构成1)1－3,first,se
6、cond,third。2)4－19,相应基数词+th,特殊拼写:fifth,eighth,ninth,twelfth。3)20－90,y变成ie+th,如twentieth。4)21－99,只把个位的基数词变成序数词如twenty-first。5)序数词缩写----数字＋最后两字母如1st,2nd,3rd,4th…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”，词尾加上“th”，(twenty,thirty,……ninety)若是遇到几十几，只变
7、个位就可以。序数词缩写记清楚,数字后跟两字母。(序数词构成规律)(1)序数词作定语，前面要加the；Thefirsttruckiscarryingafoodbasket．Johnlivesonthefifteenthfloor．SheismyfirstEnglishteacher.(2)有时加a/an，“再一”，“又一”的意思We‘llhavetodoitasecondtime．ShallIaskhimathirdtime？WhenIsatdown，afourthmanrosetospeak．Theyhadasecondchildin1988序数词的用法1/4o
8、ne-fourtha(o
