自考英语二考试重点：Unit 05 复习精要
43. The new music was built out of materials alreadyin existence. P1
44. They freelytook overelements fromjazz, from American country music, and as time went on from even more diverse sources. P2
45. Whatdeveloped wasa music readilytaking onvarious forms and capable of an almost limitless range of expression. P2
46. In studio recordings, new techniques made possible effectsthat not even an electronic band could producelive. P3
47. Electronic amplifiersalso made possible a fantastic increase in volume, the musicbecomingas loud and penetrating as the human ear could stand. P3
48. Often musicwas played out of doors,wherenature provided the environment. P4
49． The social and politicaltransformationof a countryis essential to the development of the society.
50 ．All theoriesoriginate frompractice and in turn serve practice.