teaching reading, writing, counting and sewing：teaching与will be构成简单将来进行时结构，writing, counting及sewing作teaching的动名词。
I thought for a moment. This work was not as good as working for an important family,but at least I would be independent. "Thank you,Mr.Rivers,I would be happy to teach in your school,"I said. "But you do understand?" St.John asked,a little worried. "It will only be a village school. The girls in your school will be poor and uneducated. You'll be teaching reading,writing,counting,and sewing." "I understand,and I'll be happy to do it,"I answered. He smiled.He seemed very pleased with me. "And I'll open the school tomorrow,if you like,"I added. "Very good,"he said. "But I don't think you'll stay at the Morton school for very long."