【正文】
Unit 4 Having Fun Topic 1 What can I do for you? Section A Revision: Play counting numbers game. Review numbers 1 – 20 . two – twelve – twenty three – thirteen – thirty four – fourteen – forty five – fifteen – fifty six – sixteen – sixty seven – seventeen – seventy eight – eighteen – eighty nine – nieen – niy 21 twentyone 22 twentytwo 23 twentythree 24 twentyfour 25 twentyfive 26 twentysix 27 twentyseven 28 twentyeight 29 twentynine 30 thirty 40 forty 50 fifty 60 sixty 70 seventy 80 eighty 90 niy 100 one hundred (a hundred) 101 one hundred and one 185 one hundred and eightyfive 315 three hundred and fifteen 999 nine hundred and niynine 21 , 28 , 35, 47, 56, 77,