21-29 twenty+单数 21 twenty-one 22 23 24 25 26 27 28 29 twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine 12 8 10 20 7 13 15 14 How many rabbits are there? seven How many ducks are there? nine How many boys are there? twelve How many bikes are there? eighteen How many jackets ____ the left and the right, hold them high so clean and bright . clap them softly 1,2,3 two little hands are good to see. there are _____ _____? eight How many pencils _____ there are ____ _____? twenty How many there ? horses _____ are ____ _____ eleven How many turtles_____ are there ____ _____? twelve How many cars _____ are there ____ _____? thirteen How many ants _____ are there ____ _____? twenty-five How many cows _____ are there ____ _____? urteen Numbers zero one two three ---What number is it ? ---It is number one. Numbers Four Five Six ---What number is it ? ---It is number four. Numbers seven eight Look at pictures How many dogs are there? fish pictures cats players There is\are one dog. two cats three fish four pictures five players I have two hands, 6 2 thirteen Six Twenty Two Fourteen ten Seven Twelve Eight fifteen fifteen Eleven nine Four Twenty-one Eighteen One Five Sixteen three 1 9 5 11 3 18 15 16 4 21 nine ten ---What number is it ? ---It is number nine. Numbers ---What number is it ? ---It is number eleven. eleven twelve ---What number is it ? ---It is number one. 12 twelve 15 fifteen 整数 12 13 14 15 16 17 18 19 twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen 20 30 40 50 60 70 80 90 twenty thirty forty fifty sixty seventy eighty ninety 14-19 four + teen six + teen seven + teen eight + teen nine + teen 11 eleven 13 thirteen 数字+teen 13 14 15 16 17 18 19 thirteen fourteen fifteen sixteen seventeen eighteen nineteen