最新课件牛津小学英语课件3B Unit 5 Plus and minus第二课时课件.ppt

Unit5Plusandminus,13thirteen,15fifteen,16sixteen,18eighteen,14fourteen,17seventeen,20twenty,19nineteen,Guess:WhoamI?(我是谁？)我由three个字母组成；我的第一个字母是No.two；第二个字母是No.fifteen；第三个字母是No.twenty-five.,boy,+,plus,fiveplustwo,5+2,2+7,6+9,4+11,1+17,twoplusseven,sixplusnine,fourpluseleven,oneplusseventeen,+,plus,Itsseven,+,=8,1,2,+,=12,3,+,=10,Dotheexercises:,20-4,twentyminusfour,4-3,9-6,7-2,fourminusthree,nineminussix,sevenminustwo,Whatnineminusfour?,Itsfive,9-4=?,Whatseightminustwo?,Itssix.,11-6=,9-4=,7-2=,12-8=,10-1=,14-7=,6-4=,13-5=,8,9,7,4,5,2,9-2=,7-4=,11-2=,15-5=,17-6=,20-8=,Homework:1.听录音跟读Unit5课文3遍。2.用加减法的算式编写一组对话和同桌交流。,