Question

-What’s the matter with John? He has been sitting there for hours.
-A postcard from his father   an attack of home-sickness in him.

A．took up

B．set off

C．brought in

D．built up

Answer 1

B

试题分析：短语辨析。A占据，从事于，开始做；B引起，使…发生；C介绍，引进，赚钱；D逐步建立；句意：—John怎么了？他坐在那里好几个小时了。—爸爸给他寄的一张明信片让他开始想家了。本题中的set off指引起的意思。故B正确。
点评：本题的四个短语都是高考的重点短语。尤其是AB项更是重点，要注意其一词多义的现象。