三年级英语下册课U6课文课文这个呢

三年级下册 unit six how do numbers help us count things how many books do we have we have fifteen books how many pencils do we have twelve how many boxes do we need we need three boxes？ 我 们有多少本书？ 我们有十五本书？我们有多少支铅笔？十二支。 我们需要多少个盒子？我们需要三个盒子。

wow so many apples let's have a race good idea one two three five six seven eight nine seventeen eighteen 19， 20 look i have 17 how many apples do you have oh no i have only three i won。