Read and choose. 读一读，选择最佳选项。
Little Duck is watching the sun go down. It is getting lower and lower, but his shadow is getting longer and longer.
“Why is that?” Little Duck asks his friend Old Tree. “ You are older and smarter than me. Tell me—why is my shadow longer when the sun gets lower?”
Old Tree says, “That’s easy, Little Duck. The sun goes down every day, and we grow older every day. Your shadow grows longer because you are growing taller. You are becoming a big beautiful bird!”
【1】Who is watching the sun go down? （ ）
A. Old Three B. Little Duck
【2】Little Duck’s shadow is getting ________.（ ）
A. longer and longer B. lower and lower
【3】Who is Little Duck’s friend？（ ）
A. Little Duck. B. Old Tree.
【4】The sun goes down every day, and we grow _______every day. （ ）
A. older B. younger
【5】___________grows longer because you are growing taller. （ ）
A. Old Tree’s shadow B. Little Duck’s shadow
【答案】【1】 B
【2】 A
【3】 B
【4】 A
【5】 B
【解析】