Unit 2 Lesson 10,There are forty students in our class.,book,书,New Words:,bag,书包,New Words:,children in need,需要帮助的儿童,New Words:,seventy,七十,New Words:,eighty,八十,New Words:,How many bags do you have?,We have eight bags.,How many books do you have?,We have eighty boos.,Summary,How many do you have?你有多少?,