56. Jack often turns to me for ____. Not long ago I gave him ____ on how to learn physics well.

　　 A. advices; a piece of good advice

　　 B. advices; a good advice

　　 C. advice; a good piece of advice

　　 D. advice; advice

55. Papa made a ____ of agreement though his face clouded at the mention of Grandma’s name.

　　 A. point　　　　　　 B. sign　　　　　　　 C. example　　　　　　 D. mark

54. We elected Tom ____ monitor of our class for ____ second time.

　　 A. /; a　　　　　　 B. the; a　　　　　　 C. the; the　　　　　 D. a; a

53. - Tina looks especially pretty tonight.

　　 - Yes, she always looks her best in ____ of that color.

　　 A. dress　　　　　　 B. a dress　　　　　 C. that dress　　　　 D. the dress

52. My brother and I wanted to see the new play, but we weren’t able to get the tickets for ____ two of us.

　　 A. /　　　　　　　　 B. the　　　　　　　 C. among　　　　　　 D. between

51. We must pay special attention to the idioms of ____ English language.

　　 A. the　　　　　　　 B. some　　　　　　　 C. an　　 　　　　　D. /

50.B。of a kind意为“同一种类的”。题意为“物以类聚,人以群分”。

49.B。表示发明物的名词前,常用定冠词修饰; most相当于very。

48.B。可数名词单数前用定冠词,表示类别;in danger of 为固定短语,意为“在……的危险之中”。

47.A。表示身体某个部位受伤,或抓住某人某部位时,在表示“部位”的名词前,用定冠词而不用物主代词,即:动词+sb.+ 介词+the + 人体部位。