Unit 4 Numbers and Time Part B,Lets begin!让我们开始 Lets begin our class!让我们开始上课,Sing a song,Ten little Indian boys One little, two little, three little Indians Four little, five little, six little Indians Seven little, eight little, nine little Indians Ten little Indian boys Ten little, nine little, eight little Indians Seven little, six little, five little Indians four little, three little, two little Indians One little Indian boy,Lets learn,twenty-one twenty-two thirty forty fifty sixty ,one hundred one hundred and one nine hundred and ninety-nine,English numbers:,21 22 30 40 50 60,100 101 999,Listen and pay attention to the stress,thirteen fourteen fifteen sixteen seventeen eighteen nineteen,thirty forty fifty sixty seventy eighty ninety,巧记1000以内的基数词,基数词不难记, 找清规律很容易， 十二以内词各异， 十三数到十九去，后加-teen莫忘记。 二十、三十至九十，整十之后有-ty; 要说“几十几”， 中间“-”号别丢弃， Hundred是“一百”, 要说“几百几十几”， Hundred后面加and, 请你记住莫大意。,How much is sixteen and twenty?,Its thirty-six.,How much is thirteen and forty?,No. Its forty-three.,Its fifty-three.,How much is sixteen and twenty?,Its thirty-six.,Lets practice,How much is eighteen and twenty? How much is thirty-two and ten？ How much is seventeen and twenty? How much is forty and thirteen？,How much is twenty-one and thirty? How much is eight and nine? How much is nine and six?,5=12,7,20=48,=32,17,18=42,26,=58,24,15,24,32,HOMEWORK,byebye!,