17.bore vt．使……感到厌烦
All his old stories bore me．他所有的老生常谈使我厌烦。
n．令人厌烦的事物
Don't be such a bore．别这么讨厌。
【用法】bore的两种分词形式boring 和 bored：boring 表示主动，指某事物令人厌烦；bored表示被动，指被某事物弄得厌烦。
He was bored with his job．／It's a boring film．
类似的词还有interesting与interested；exciting与 excited等
18.concentrate v．全神贯注，精神集中，专心致志；集中，集合；浓缩
We should concentrate all our efforts on improving education．我们应该集中精力努力改进教育工作。
Troops are concentrating south of the river．军队正向河的南边集结。
n．浓缩液
【用法】concentrate（sth．）on sth．／doing sth．
【全真考题】Anne couldn't concentrate what she was doing while her family were watching TV．（93．1）
A．to
B．on
C．for
D．in
【答案】B
19.continual adj．继续不断的；一再重复的 continual rain 不停的雨
【辨析】continual与continuous
continual一般指多次重复的动作：Please stop your continual questions．
continuous表示动作或物体继续不停地或不间断地进行下去：a continuous flow of traffic
【全真考题】Our journey was slow because the train stopped at different villages．（99．1） A．unceasingly
B．gradually
C．continuously
D．continually
【答案】D
