二零二三年 优质公开课四年级上unit91.pptx

Unit 9 It's one hundredAnne has some troubles in doing math homeworAnne在做数学作业时遇到了困难。Let’s help her!让我们来帮帮她吧！Is this rightAnne's homeworYes, it’s rightFifteen and three is eighteenCan you find the rules你能找到规律吗？√15 3 = 18Eighteen and twelve is thirty√18 12 = 30Is this rightTwenty and thirty is fortyNo, it’s wrong×20 30 = 40fifty★ 20-90词尾都有一个ty2030405060708090twentythirtyfortyfiftysityseventyeightyninetyath Peter对自己的数学作业很有信心。Let's chec it out。让我们来检查一下吧！eworone hundredfive________ and ______ is ___________Sity√sity-fiveCan you find the rules你能找到规律吗？√Seventysi________ and ______ is ___________ seventy-si √Eightyseven________ and ______ is ___________ eighty-seven √ nineNinety________ and ______ is ___________ ninety-nine ★几十几数词的表达：先说几十，再说几，中间连字符别忘记。21 twenty-one32 thirty-two43 forty-three54 fifty-four65 sity-five76 seventy-si87 eighty-seven98 ninety-eight99 ninety-nine连字符Let's chant twenty, one,Twenty and one / is twenty-one thirty, two,Thirty and two / is thirty-two eighty, four,Eighty and four / is eighty-four ninety, nine,Ninety and nine / is ninety-nineCan you count them in English你能用英文算出这些算式吗？1 0 0Listen and sayWho is right Who is wrongLet’s watch and readIs this right， Miss Li？听录音并跟读，模仿语音语调会更棒哦！Yes, it’s right Good!Than youPlease thin again Forty-si and fifty-four is…threethirteenthirtyOh! I’m wrong! It’s one hundredTas 1 Anne, iss Li任务一：课文重现Tas 2 create your own story任务二：自选数字，进行对话A:Hi, 人名B:Hi, 人名）A：Loo at my homewor____and____is____Is this rightB:Yes,it's rightA: and is Is this rightB:No,it's wrong Please thin againA:Oh,it's Is this right， Miss Li？Yes, it’s right Good!任选其一Than youPlease thin again Forty-si and fifty-four is…Oh! I’m wrong! It’s one hundredeverywhere 无处不在schoolNumbersmaret…homeNumbers in schoolone hundredscores分数Numbers in schoolforty-oneschool number学号Numbers at hometwenty-fivetemperature温度Numbers at hometwenty-eightTV series剧集Numbers in the maretsity-siprice价格Numbers at marettwenty-siweight重量 Numbers are everywhere in our life A small numbe