A、  B、  C、  D、  A图片描述的是人们向着大海拾阶而下的样子，很容易仅凭听到walking down．．．就将(C)选为正确答案。只要准确掌握head toward(向着……)的含义就不难找出正确答案。

(A)He’s making a phone call.
(B)He’s typing on a keypad.
(C)He’s sitting at the workstation.
(D)He’s examining a patient.

(A)They’re heading toward the ocean.
(B)They’re relaxing on the beach.
(C)They’re walking downtown.
(D)They’re working on the sign.