1、MODULE1 Numbers,Unit1.seventeen,eighteen,nineteen,twenty!,外研版四年级英语上册,Words,one,two,three,four,five,1,2,3,4,5,black,eleven,11,red,13,thirteen,green,14,fourteen,12,twelve,gray,15,fifteen,blue,6,six,16,sixteen,yellow,7,seven,17,seventeen,purple,8,eight,18,eighteen,pink,9,nine,19,nineteen,white,10,ten,2
2、0,twenty,orange,Words,Explore 探究,我发现,112的基数词需要单独记忆。,对比：,Explore 探究,找规律：,我发现,1319的基数词以-teen-ti:n结尾。,Explore 探究,特殊：,我发现,1319的基数词thirteen,不能直接在three后加-teen,要单记；fifteen要变five的ve为f再加-teen；eighteen直接在eight后加-een。其余的直接在基数词后加-teen，变成十几。,Explore 探究,20,twenty,30,thirty,40,forty,50,fifty,60,sixty,70,seventy,80
3、,eighty,90,ninety,100,one hundred,发现：,2099的基数词，整十数都是以-ty结尾。,找规律：,Explore 探究,21,twenty-one,35,thirty-five,47,forty-seven,99,ninety-nine,悟方法：,我发现,非整十数的基数词用“整十数+个位数”构成，整十数与个位数之间加连字符“-”。,Listen and point.,Explore 探究,句型结构：,我发现,课文句型：A:Heres a one,red,and a one.,green,This is a one,blue,and this is a one.,yellow,B:Thirteen(1320的基数词),Match and say,13,eighteen,sixteen,14,15,17,nineteen,seventeen,16,twenty,fifteen,20,thirteen,fourteen,18,19,A:(points to “20”)Twenty.,B:(points to “20”)Twenty.,Lets sing.,Lets watch TV.,Thank you!,Goodbye!,
