Unit4 We are having an English class,主讲人：Alan老师,Find things that begin with the letter b in the classroom,Find things that begin with the letter b in the classroom,book ball,Find things that begin with the letter p in the classroom,Find things that begin with the letter p in the classroom,pen pencil case,Find things that begin with the letter c in the classroom,Find things that begin with the letter c in the classroom,chair clock,Find things that begin with the letter d in the classroom,Find things that begin with the letter d in the classroom,door desk,Antonym:反义词,old slow happy short big tall,sad short small quick long young,read reader,paint painter,writewriter,dancedancer,speakspeaker,walkwalker,singsinger,runrunner,farmfarmer,cleancleaner,teachteacher,swimswimmer,