Unit Two. Graceful Hands. The first two periods. Check the answers of translation A brief introduction of text A Key words and expressions and difficult sentences Exercises. Translation of Unit 4.
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Protection of the environment has become a major concern of society. In junior schools, teachers and pupils have specific meetings to discuss the questions of environment. City planner will take environmental problems into serious consideration. Factories will take every possible measure to reduce pollution even at a very high cost. This is because people realize bad air and water pollution affect everyone, making it difficult for cities to survive and for businesses to make a profit.