48. ___
A. It is often displayed outdoors.
B. It does not always represent an object.
C. It is three-dimensional.
D. It is done by relatively few artists.
49. ___
A. To give an example of natural shapes.
B. To describe early sculpture.
C. To illustrate their use as tools.
D. To demonstrate their role as decorative objects.
50. ___
A. They are always made of stone.
B. They are painted in bright colors.
C. They contain moving parts.
D. They make use of holes.
Audio 51. When experiencing a film at IMAX, it is as if you are ..............................______ ............................. ..2. The much larger surface area of IMAX films allows.............................______ ........................... to be projected.3. The screen is ............................______ ................................... than in normal cinemas.4. There are two speakers behind the audience and four..............................______ ........................... ..5. Properly made 3D glasses do not................______ ..................