Art and architecture（The First Period）

unit 3   art and architecture
  i. brief statements based on the unit
      in this unit, ss will read about art and architecture, learn to express preferences, learn about the past participle used as object complement, and learn to write a review of a painting. in the first period, ss will learn to express preferences by making dialogues with the help of the given expressions. also they
 will do some listening practice to improve their listening ability. in the second period, ss will read a passage about modern architecture. they will learn about some famous architects and their works as well as some famous buildings in the world. in this period, ss will learn some useful words and expressions, too. in the third period of this unit, the useful words are revised first and also ss will learn to use a new sentence pattern：a is to b what c is to d. ss can master it after finishing the practice provided in this part. the grammar item is the past participle used as object complement. this is an important item. teacher should give some explanations to help ss understand it and then after ss finish the exercises they will master it better. teacher may provide more practice if necessary. in the fourth period, ss will do some reading and writing practice to improve their integrating skills. after the study of this unit, ss may know more about art and architecture and they will also make progress in their listening, speaking, reading and writing abilities.
ii .teaching goals 
1. talk about art and architecture.
2. learn to express preferences.
3. learn about the past participle(2) : used as object complement.
4. write a review of a painting.
iii. teaching time: four periods
iv. background information
1. the great wall of china
    in 221 b.c. the first emperor started to build a great wall right across the north of his empire. he wanted to keep the tribes of huns and tartars outside his country. there were earlier walls built in some places by different kings of china, but the first emperor, now that he ruled all china, decided to complete the wall. he decided to make it run right across from tibet to the sea, a distance of over 1 500 miles. it took seven years to build.
       the great wall ran across wild, steep, mountainous country, over the mountains and down the valleys. north and west of it there were only wild mountains and deserts, and south and east there were the rich yellow river plains. it was built higher than a double-decker bus. in most places it was wide enough for eight men to march side by side along the top. it was built of stones and clay. there were huge blocks of stones on the sides, and on the top there were more stones. cars could travel along the top.