基数词序数词专项练习.doc

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1、基变序专练一．基数词。1.写数字1-12__________________________________________________________________________________________________________________________________________2.写数字13-19_____________________________________________________________________3.写整十。20________

2、__________30___________________40___________________50___________________60___________________70___________________80___________________90___________________100___________________4.写出下列数字。21___________________32___________________43___________________54

3、___________________65___________________76___________________87___________________98___________________101__________________210___________________________375__________________________________二．序数词。序数词用于表示事物的顺序，一般由与之相应的基数词加th构成(但有特殊形式需特别记忆)；序数词主要用作定语，前面

4、一般要加定冠词(或物主代词)。如：Theirsecondsonisadoctor.他们的二儿子是个博士。Ilikethefirstmovie.我喜欢第一部电影。1.基数词变序数词。其规律为：1）.一，二，三，特别记,词尾字母tdd,然后再加th,(1st___________,2nd___________,3rd___________4th_____________)2）.八去t，九去e，f要把ve替，然后再加th,(8th____________,9th______________)3）整十变化需注

5、意，把y要变成ie，然后再加th(5th___________,12th____________,20th_____________,30th________________90th__________________)4).若是遇到几十几，只变个位就可以(21st___________________32nd______________________43rd______________________54th______________________)2.写出下列序数词。1st_________

6、__________2nd___________________3rd___________________4th___________________5th___________________6th___________________7th___________________8th___________________9th___________________10th___________________11th___________________12th_________________

7、__13th___________________14th___________________15th___________________16th___________________17th___________________18th___________________19th___________________3.写出下列序数词。20th___________________30th___________________40th___________________50th_______

8、____________60th___________________70th___________________80th___________________90th___________________100th___________________4.写出系列序数词。21st_____________________________22nd____________________________23rd______________________