问题
选择题
Tom studies harder this term. _________, he has made great progress in his lessons.
A．Instead
B．After all
C．By the way
D．As a result
答案
D
题目分析：考查短语辨析；A. Instead而不是；B. After all毕竟 ；C. By the way顺便；D. As a result结果；句意：汤姆这个学期学习很努力，结果，在学业上取得巨大的努力。根据句意两个句子是因果关系，故选D 项。
考点 : 考查短语辨析