UNIT SIX I HAVE FIFTY MARKERSLesson 20,New words,forty 四十,thirty 三十,Listen, look and learn,Lets learn,What do you collect? I collect I have,What do you collect?I collect rulers. I have 2 rulers,What do you collect?I collect erasers. I have 4 erasers,What do you collect?I collect books. I have 3 books,What do you collect?I collect caps. I have 4 caps,What do you collect?I collect glues. I have 3 glues,Game Time,记忆大比拼,老师将单词卡片按照随意 顺序摆好，学生记忆， 之后老师随意打 乱顺序，学生根 据记忆将单词还原,Homework,1.Remember these new wo
