4、 three hundred and sixty-five 365 two hundred and six 2063.当hundred,thousand,million,billion前有具体数字或several时,必须用单数形式。如:several hundred year’s ago几百年前 two thousand students两千个学生4.hundredsof,thousandsof,millionsof前不能用具体数字,表示“成百,成千上万,成百万”。如:Million
6、adeNine,ClassTwo.三、序数词1. 多位数的基数词变成序数词时,只需将末位基数词变成序数词,前边的基数词不变。如: forty-two 42 forty-second第42 nine-hundred 900 nine-hundredth第9002.序数词前一般要用定冠词the,如果序数词前用a或an时,则表示“又一;再一”。如:Though he had failed twice, he wanted to try a third time.The little monk
7、ey had had three apples, and he wanted to eat a fourth one.3.表示世纪,in+the+序数词+century。如:Manyimportantinventionswereinventedinthetwentiethcentury.4.表示日期,顺序为月、日、年,年用基数词,日用序数词.如:1987年4月20日,写成20thApril,1987,读成thetwentiethofApril,nineteeneighty-seven.5.表示编号
8、。如:thesixthlesson,inthefifthline四、分数和百分数表达法1. 分数(1)分数的分子用基数词,分母用序数词。如: one fifth五分之一one tenth十分之一(2)当分子大于1时,分母用序数词的复数。如: two thirds三分之二five eighths八分之五(3)当分子是1时,可以用one也可以用a。如:a second = one seconda third = one third(4)当分母是2和4时,分别可以用half和