1、,数字们在举办聚会。 20，30，40，50， 60，70，80和90. 它们都在欢快地跳舞。,你们班有多少学生？,有14个,14个,哦，抱歉！,有40个,哦，有这么多。,一、A:There are thirty boys in Lake School. B: There are forty boys in Park School. 二、 A:There are forty girls in Lake School. B: There are fifty girls in Park School. 三、 A:There are twenty computers in Lake School.
2、B: There are thirty computers in Park School.,/au/,/i/,pe,动物园有10只大狮子。,20只熊和1只袋鼠。,30只象排成排。,40只猴子上上下下。,我能看见50只老虎。,树上有60只鹦鹉。,70只猫和80只狗。,90只鸟和100只青蛙。,ten+two=,nine-four=,eleven+there=,seven+eight=,fourteen-five=,eleven-nine=,ten+eight=,four+seven=,fifteen-five=,fifteen-eight=,ninety-seventy=,eighty-forty=,How manyare there? 句型,How many 可数名词复数 are there?,How much 可数名词单数 is it?,twenty-five,twenty,fifteen,
