step by step (初级刀客)
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step:跟读模仿5 m& r- \ B r* M% [
& \( J! i7 N- K' k" t! |第十六篇（艺术史）5 n6 J5 o2 Z' o( N
The professor is talking about art and architecture in ancient Assyria. Last time we talked about the fact that the earliest art of Assyria was similar to that of Babylonian and other nearby cultures. But all that changed after the 19th century B,C. When the the Assyria started to develop their own unique style of art particularly with their unusual sculpture. This sculpture primarily took two forms. The first kind was huge guardians like figures that decorated the entrances to buildings. The large guardian sculptures were actually never mean to be viewed from all sides but rather to be seen from either the front or the side and are called double aspect relief. Relief carving,as we remember from early discussions generally stand out from the front surface and a perfect for decorating walls. The other kind of sculpture favored by Assyria artists was relief carving that formed the continuing with the bands around the basic material of the walls was probably invented by the Assyria. The subject matter of the relief carving most often was military conquest or the glory of the King and his family. The sculpture was sometimes arranged in the form of the story to show success of the events---say the reign of the King or the military campaign. The Assyria also mad relief carving on the decorated with scenes. Inside being carved with stone this scene was done on metal and horizontal band the bronze. let's take a look at the slide of this gate now, so you can see the skills that were the neccessary to create sences.
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7 t( ~& n1 J1 O0 x- l& `) F" Y) i第十七篇（艺术史painting）7 x) [& ]2 s9 s( R. J
Today I will talk about the result of recent study. This result indicates that the routine cleaning the oil painting intend to help preserve them, they actually hasten their deterioration. As you know conservator often use strong organic solvent such as alcohol or acetone to clean paintings. There have been many studies the chemical in the harmful way with the chemical in paint ot the glue use to seal canvas for example. But the recent study was first to consider the fact that the solvent turn to cool off their surrounding as they evaporate. The new study found that swooping paintung with acetone for just 5 seconds can cause the spot of acetone was applied to near freezing temperature, and even that if you never had course in physics. You are probably aware that things contract and expand at the different rates when the temperature changes. That's why running hot water over the jar can make it easier to get the lid off. The metal make expanse more than the glass jar does. Since different layers of painting such as glue, fabric and painting to very strong mechanical stresses. In other words, even there were no chemical damage, the use of strong solvent can weak painting structurally alternately cause the inter-deteriorate more quickly.
